Patent Application
20250146724
This application claims priority to Chinese Application No. 202311459455.5, filed on Nov. 3, 2023, the entire content of which is incorporated herein by reference.
The present application relates to the technology of operating a refrigerant heat exchanger, and in particular to a refrigerant heat exchanger, a method and device for installing a refrigerant sensor, and a storage medium.
With economic and social development, refrigerant heat exchangers are being increasingly used in various scenes such as people's daily home life and work.
Refrigerants play an important role in energy saving and emission reduction. However, due to the characteristics of refrigerants, they are inflammable and even explosive. For example, when the concentration of refrigerant leakage reaches a certain value, the refrigerant may combust and even explode after encountering a fire source, which can pose hazards to users. Therefore, in the related art, it is usually needed to deploy a refrigerant sensor in the refrigerant heat exchanger to monitor whether the refrigerant leaks, thereby reducing the occurrence of hazards.
However, in some scenes, service personnel often cannot find the optimal position for deploying the refrigerant sensor in the refrigerant heat exchanger, which may lead to the problem that refrigerant leakage cannot be effectively detected. Therefore, how to avoid the above drawback has become a problem that needs to be solved.
Embodiments of the present application provide a refrigerant heat exchanger, a method and device for installing a refrigerant sensor, and a storage medium. Embodiments of the present application are used to solve the problem in the related art that refrigerant leakage cannot be effectively detected due to incorrect position of the refrigerant sensor.
According to one aspect of the embodiments of the present application, a method for installing a refrigerant sensor is provided, which is applied to a refrigerant heat exchanger, and which includes:
Optionally, in another embodiment based on the above method of the present application, the determining a corresponding highest risk leakage point for each of the candidate installation positions includes:
Optionally, in another embodiment based on the above method of the present application, the calculating a leakage limit distance corresponding to each highest risk leakage point includes:
Optionally, in another embodiment based on the above method of the present application, the using the refrigerant leakage rate and the distance value to calculate the leakage limit distance corresponding to each highest risk leakage point includes:
Optionally, in another embodiment based on the above method of the present application, the determining a target highest risk leakage point corresponding to a target leakage limit distance and using the candidate installation position corresponding to the target highest risk leakage point as a target installation position includes:
Optionally, in another embodiment based on the above method of the present application, the determining the target installation position based on the first installation position and the second installation positions includes:
Optionally, in another embodiment based on the above method of the present application, the selecting multiple candidate installation positions in a bottom area of the refrigerant heat exchanger includes:
According to another aspect of the embodiments of the present application, a device for installing a refrigerant sensor is provided, which includes:
According to further another aspect of the embodiments of the present application, a refrigerant heat exchanger is provided, which includes:
According to still another aspect of the embodiments of the present application, a computing device readable storage medium is provided, which is configured to store instructions readable by a computing device, and when the instructions are executed, operations of the method for installing a refrigerant sensor as described in any of the above items are performed.
In the present application, multiple candidate installation positions are selected from the bottom area of the refrigerant heat exchanger, in which the bottom area is an area below the central horizontal line of the refrigerant heat exchanger; the corresponding highest risk leakage point is determined for each of the candidate installation positions, and a leakage limit distance corresponding to each highest risk leakage point is calculated, in which the highest risk leakage point is used to reflect the refrigerant leakage position in the refrigerant heat exchanger with a lowest probability of being detected by the refrigerant sensor; the target highest risk leakage point corresponding to the target leakage limit distance is determined, and the candidate installation position corresponding to the target highest risk leakage point is used as the target installation position, in which the target leakage limit distance is the leakage limit distance with the smallest value among all the leakage limit distances; and the refrigerant sensor is installed at the target installation position of the refrigerant heat exchanger.
By applying the technical solutions of the present application, first, multiple candidate installation positions can be selected in the bottom area of the refrigerant heat exchanger, and for the refrigerant sensors deployed in various candidate installation positions, the highest risk leakage point where it is most difficult for the refrigerant sensor to detect refrigerant leakage is determined respectively. Subsequently, based on the leakage limit distance of each highest risk leakage point, the target highest risk leakage point with the relatively smallest range of refrigerant leakage is selected, and the installation position corresponding to this leakage point is used as the final deployment position of the refrigerant sensor on the refrigerant heat exchanger. On one hand, the problem in the related art that refrigerant leakage cannot be effectively detected due to incorrect position of the refrigerant sensor is solved. On the other hand, the problem of being unable to select the optimal installation position for refrigerant heat exchangers with different models and installation directions caused by using a single sensor deployment method can also be avoided.
A further detailed description of the technical solutions of the present application will be given below in connection with multiple embodiments.
The accompanying drawings, which form a part of the specification, illustrate the embodiments of the present application, and serve to explain the principle of the present application together with the description.
Referring to the accompanying drawings, the present application can be more clearly understood from the following detailed description, in which:
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specified, the relative arrangement, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present application.
At the same time, it should be understood that for ease of description, the sizes of various parts shown in the drawings are not drawn according to the actual proportional relationships.
Actually, the following description of at least one exemplary embodiment is merely illustrative, and should not be construed as any limitation to the present application and its application or use.
The techniques, methods and apparatuses known to those skilled in the art may not be discussed in detail, but in appropriate cases, such techniques, methods and apparatuses should be considered as part of the specification.
It should be noted that similar signs and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
In addition, the technical solutions can be combined with each other between the various embodiments of the present application, but based on the fact that they can be achieved by those skilled in the art. When the combination of technical solutions makes the technical solutions contradict to each other or is impossible to implement, it should be considered that this combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.
It should be noted that all directional indications (such as upper, lower, left, right, front, rear, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement and the like between the components in a specific posture (such as that shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
The method for installing a refrigerant sensor according to an exemplary embodiment of the present application will be described below in connection with
In an implementation, the refrigerant heat exchangers 101, 102 and 103 in the present application can be refrigerant heat exchangers in smart home scenes. For example, they can be applied to wall mounted air conditioners, cabinet air conditioners, central air conditioners, mobile air conditioners, and so on.
In the related art, the refrigerant heat exchangers are used to regulate indoor environmental parameters such as environmental temperature and environmental humidity.
In an implementation, the refrigerant heat exchangers may include finned heat exchangers, plate heat exchangers, shell and tube heat exchangers, double-pipe heat exchangers, and so on.
In the related art, refrigerant sensors are usually provided in an air conditioning system to detect whether refrigerant leakage occurs. When the refrigerant concentration detected by the refrigerant sensor is larger than a set alarm value, the refrigerant sensor will send an alarm.
However, in some scenes, service personnel often cannot find the optimal position for deploying the refrigerant sensor in the refrigerant heat exchanger, which may lead to the problem that refrigerant leakage cannot be effectively detected.
Therefore, if a technical solution that can automatically determine the optimal installation positions and number of refrigerant sensors for refrigerant heat exchangers with different models and installation directions can be implemented, the economy and convenience of refrigerant heat exchangers can be greatly improved.
Further, the present application also proposes a method and device for installing a refrigerant sensor, a refrigerant heat exchanger, and a storage medium.
S101: selecting multiple candidate installation positions in a bottom area of the refrigerant heat exchanger, in which the bottom area is an area below a central horizontal line of the refrigerant heat exchanger.
In an implementation, since the density of the refrigerant is larger than that of air, even if there is refrigerant leakage on the refrigerant heat exchanger, the refrigerant will deposit below the leakage position. Therefore, the refrigerant sensor in the embodiment of the present application needs to be deployed in the bottom area of the refrigerant heat exchanger.
In an implementation, the bottom area refers to an area below a central horizontal line of the refrigerant heat exchanger. Exemplarily, as shown in
In an implementation, the candidate installation position can be any position in the bottom area, as long as the size of the candidate installation position is larger than the size of the refrigerant sensor.
In another implementation, the embodiment of the present application does not impose any limitation on the number of candidate installation positions. Exemplarily, the candidate installation positions can be a lower left corner area, a lower right corner area or a middle area of the bottom area, etc.
S102: determining a corresponding highest risk leakage point for each of the candidate installation positions, and calculating a leakage limit distance corresponding to each highest risk leakage point, in which the highest risk leakage point is a refrigerant leakage position in the refrigerant heat exchanger with a lowest probability of being detected by the refrigerant sensor.
In an implementation, the highest risk leakage point is used to reflect the leakage point in the refrigerant heat exchanger where it is the most difficult for the refrigerant sensors deployed in various candidate installation positions to detect refrigerant leakage.
Exemplarily, each candidate installation position and its corresponding highest risk leakage point can be determined based on a distance value between the two. That is, for a certain candidate installation position, the point farthest from it in the refrigerant heat exchanger is the corresponding highest risk leakage point.
Exemplarily, taking
S103: determining a target highest risk leakage point corresponding to a target leakage limit distance, and using the candidate installation position corresponding to the target highest risk leakage point as a target installation position, in which the target leakage limit distance is the leakage limit distance with the smallest value among all the leakage limit distances.
In an implementation, after each candidate installation position and its corresponding highest risk leakage point are determined in the embodiment of the present application, it is required to calculate the limit distance of refrigerant leakage (i.e., the leakage limit distance) for each highest risk leakage point in the event of refrigerant leakage.
It can be understood that for a certain highest risk leakage point, the longer the corresponding leakage limit distance is, the higher the probability of being detected by the refrigerant sensor will be. In other words, for some leakage points with shorter leakage distances, they are relatively less likely to be detected by the refrigerant heat exchanger.
It can be understood that once the refrigerant sensor can detect the refrigerant that has leaked from the leakage point with a shorter leakage distance, this refrigerant sensor also can naturally detect the refrigerant that has leaked from other leakage points with longer leakage distances (this is because the refrigerant that has leaked from other leakage points has a larger diffusion range, making it easier for the sensor to detect).
Therefore, in the embodiment of the present application, it is required to find the leakage limit distance with the smallest value among multiple leakage limit distances, and use the target highest risk leakage point corresponding to this leakage limit distance as a reference for the installation position of subsequent refrigerant sensors.
Exemplarily, in the process of calculating the leakage limit distance corresponding to each highest risk leakage point in the embodiment of the present application, the following formula can be used:
S104: installing the refrigerant sensor at the target installation position of the refrigerant heat exchanger.
It can be understood that the candidate installation position corresponding to the target highest risk leakage point is the final installation position (i.e., the target installation position) of the refrigerant sensor on the refrigerant heat exchanger.
By applying the technical solutions of the present application, first, multiple candidate installation positions can be selected in the bottom area of the refrigerant heat exchanger, and for the refrigerant sensors deployed in various candidate installation positions, the highest risk leakage point where it is most difficult for the refrigerant sensor to detect refrigerant leakage is determined respectively. Subsequently, based on the leakage limit distance of each highest risk leakage point, the target highest risk leakage point with the relatively smallest range of refrigerant leakage is selected, and the installation position corresponding to this leakage point is used as the final deployment position of the refrigerant sensor on the refrigerant heat exchanger. On one hand, the problem in the related art that refrigerant leakage cannot be effectively detected due to incorrect position of the refrigerant sensor is solved. On the other hand, the problem of being unable to select the optimal installation position for refrigerant heat exchangers with different models and installation directions caused by using a single sensor deployment method can also be avoided. The drawback of inability of thorough cleaning is eliminated.
Optionally, in another embodiment based on the above method of the present application, the determining a corresponding highest risk leakage point for each of the candidate installation positions includes:
In an implementation, since the refrigerant is heavier than air, the refrigerant will flow downward after leaking out of the heat exchanger. Therefore, in the embodiment of the present application, it is required to select multiple candidate installation positions in the bottom area of the refrigerant heat exchanger.
Further, in the embodiment of the present application, it is required to evaluate the leakage point that is least likely to be detected for each candidate installation position (such as the point farthest from the candidate installation position). Therefore, it is needed to compare the distance between two coordinate points to determine that the second coordinate point is a coordinate point on the refrigerant heat exchanger that is farthest from the first coordinate point.
Optionally, in another embodiment based on the above method of the present application, the calculating a leakage limit distance corresponding to each highest risk leakage point includes:
Optionally, in another embodiment based on the above method of the present application, the using the refrigerant leakage rate and the distance value to calculate the leakage limit distance corresponding to each highest risk leakage point includes:
Exemplarily, in the process of calculating the leakage limit distance corresponding to each highest risk leakage point in the embodiment of the present application, the following formula can be used:
In an implementation, since the refrigerant is heavier than air, the refrigerant will also flow downward inside the refrigerant heat exchanger. At the same time, the refrigerant will also flow out from the interior of the heat exchanger (i.e., in case of leakage). It can be understood that when the leakage rate of the refrigerant (which is determined by the refrigerant capacity of the refrigerant heat exchanger, that is, the larger the refrigerant capacity of the refrigerant heat exchanger is, the higher the corresponding leakage rate will be) is equal to the outflow rate of the refrigerant, the height of deposition can be maintained unchanged, that is, the height of deposition is directly proportional to the leakage rate and inversely proportional to the contact length between the refrigerant outflow path and the bottom of the cabinet in the horizontal direction (the contact length is the sum of the two lengths of the bottom of the heat exchanger that are in contact with the path).
Exemplarily, as shown in
In another implementation, since the refrigerant itself has a horizontal velocity during the deposition process, it will also float to the refrigerant sensor in the horizontal direction during the deposition process, and the refrigerant sensor can also detect the leakage (i.e., the horizontal distance) at this time.
Exemplarily, still as shown in
In another implementation, based on the highest height at a certain horizontal position, the time taken to reach this horizontal position can be calculated, and then a refrigerant descending height (i.e., a relative height) can be calculated based on gravity, so that the leakage limit distance of the refrigerant sensor can be calculated.
Exemplarily, still as shown in
Optionally, in another embodiment based on the above method of the present application, the determining a target highest risk leakage point corresponding to a target leakage limit distance and using the candidate installation position corresponding to the target highest risk leakage point as a target installation position includes:
Optionally, in another embodiment based on the above method of the present application, the determining the target installation position based on the first installation position and the second installation positions includes:
As shown in
Therefore, in the embodiment of the present application, it is required to select the candidate installation positions (including the first installation position and the second installation positions) corresponding to the target highest risk leakage points (including the target highest risk leakage point and other target highest risk leakage points) in various installation directions (including the current installation direction and other installation directions).
In an implementation, if there is an overlapping area between the first installation position and the second installation positions, then the overlapping area is determined to accommodate the positions of refrigerant sensors in multiple placement directions, and therefore the overlapping area is used as the target installation position.
In another implementation, if there is no overlapping area between the first installation position and the second installation positions, in order to ensure the effectiveness of leakage monitoring, the first installation position and the second installation positions together can be used as the target installation positions in the embodiment of the present application, that is, a refrigerant sensor is deployed at each of the first installation position and the second installation positions respectively.
Optionally, in another embodiment based on the above method of the present application, the selecting multiple candidate installation positions in a bottom area of the refrigerant heat exchanger includes:
In an implementation, as shown in
Step 1: selecting multiple candidate installation positions in a bottom area of the refrigerant heat exchanger;
Step 2: determining a first coordinate point of each candidate installation position on the refrigerant heat exchanger, and determining a second coordinate point for each first coordinate point respectively.
Step 3: using the second coordinate point corresponding to each first coordinate point as the highest risk leakage point corresponding to each candidate installation position;
Step 4: obtaining a refrigerant capacity and device size of the refrigerant heat exchanger.
Step 5: determining a refrigerant leakage rate of the refrigerant heat exchanger based on the refrigerant capacity, and determining a distance value corresponding to each highest risk leakage point based on the device size.
Step 6: using the refrigerant leakage rate and the distance value to calculate the leakage limit distance corresponding to each highest risk leakage point, and determining a target highest risk leakage point corresponding to a target leakage limit distance;
Step 7: calculating other target highest risk leakage points corresponding to the remaining installation directions of the refrigerant heat exchanger, and using other candidate installation positions corresponding to the other target highest risk leakage points as second installation positions; then proceeding to step 8a or step 8b.
Step 8a: if it is detected that the first installation position overlaps with the second installation positions, then using the position of overlapping portion as the target installation position; then proceeding to step 9.
Step 8b: if it is detected that the first installation position does not overlap with the second installation positions, then using the first installation position and the second installation positions together as the target installation position; then proceeding to step 9.
Step 9: installing the refrigerant sensor at the target installation position of the refrigerant heat exchanger.
By applying the technical solutions of the present application, first, multiple candidate installation positions can be selected in the bottom area of the refrigerant heat exchanger, and for the refrigerant sensors deployed in various candidate installation positions, the highest risk leakage point where it is most difficult for the refrigerant sensor to detect refrigerant leakage is determined respectively. Subsequently, based on the leakage limit distance of each highest risk leakage point, the target highest risk leakage point with the relatively smallest range of refrigerant leakage is selected, and the installation position corresponding to this leakage point is used as the final deployment position of the refrigerant sensor on the refrigerant heat exchanger. On one hand, the problem in the related art that refrigerant leakage cannot be effectively detected due to incorrect position of the refrigerant sensor is solved. On the other hand, the problem of being unable to select the optimal installation position for refrigerant heat exchangers with different models and installation directions caused by using a single sensor deployment method can also be avoided.
In another embodiment of the present application, as shown in
By applying the technical solutions of the present application, first, multiple candidate installation positions can be selected in the bottom area of the refrigerant heat exchanger, and for the refrigerant sensors deployed in various candidate installation positions, the highest risk leakage point where it is most difficult for the refrigerant sensor to detect refrigerant leakage is determined respectively. Subsequently, based on the leakage limit distance of each highest risk leakage point, the target highest risk leakage point with the relatively smallest range of refrigerant leakage is selected, and the installation position corresponding to this leakage point is used as the final deployment position of the refrigerant sensor on the refrigerant heat exchanger. On one hand, the problem in the related art that refrigerant leakage cannot be effectively detected due to incorrect position of the refrigerant sensor is solved. On the other hand, the problem of being unable to select the optimal installation position for refrigerant heat exchangers with different models and installation directions caused by using a single sensor deployment method can also be avoided.
In another embodiment of the present application, the troubleshooting module 202 is configured to:
In another embodiment of the present application, the troubleshooting module 202 is configured to:
In another embodiment of the present application, the troubleshooting module 202 is configured to:
In another embodiment of the present application, the troubleshooting module 202 is configured to:
In another embodiment of the present application, the troubleshooting module 202 is configured to:
In another embodiment of the present application, the troubleshooting module 202 is configured to:
Embodiments of the present application also provide a refrigerant heat exchanger to perform the method for installing a refrigerant sensor described above. Reference is made to
The memory 301 may include a high-speed random-access memory (RAM), and may also include a non-volatile memory, such as at least one magnetic disk storage. The communication connection between this device network element and at least one other network element is realized through at least one communication interface 303 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network and the like can be used.
The bus 302 can be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. The memory 301 is used to store programs, and the processor 300 executes the program after receiving an execution instruction. The method for installing a refrigerant sensor provided in any of the above embodiments of the present application can be applied to the processor 300 or implemented by the processor 300.
The processor 300 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed through integrated logic circuits of hardware in the processor 300 or through software instructions. The processor 300 mentioned above can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, or discrete hardware components. The methods, steps, and logical diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor, or the processor can be any conventional processor, etc. The steps of the method disclosed in the embodiments of the present application can be directly executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in mature storage media in the art, such as random-access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, register, etc. The storage medium is located in the memory 301, and the processor 300 reads the information from the memory 301 and completes the steps of the above method in conjunction with its hardware.
The refrigerant heat exchanger provided in the embodiment of the present application is based on the same inventive concept as the method for installing a refrigerant sensor provided in the embodiment of the present application, and has the same advantageous effects as the methods adopted, operated or implemented by it.
Embodiments of the present application also provide a computer-readable storage medium corresponding to the method for installing a refrigerant sensor provided in the above embodiments. Reference is made to
It should be noted that examples of the computer-readable storage media may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory, or other optical or magnetic storage media, which will not be listed exhaustively herein.
The computer-readable storage medium provided in the above embodiment of the present application is based on the same inventive concept as the method for installing a refrigerant sensor provided in the embodiment of the present application, and has the same advantageous effects as the method adopted, operated or implemented by the application program stored therein.
It should be noted that:
In the specification provided herein, a large number of specific details are explained. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known structures and techniques are not shown in detail to avoid obscuring the understanding of the specification.
Similarly, it should be understood that in order to simplify the present application and assist in understanding one or more inventive aspects, in the above description of the exemplary embodiments of the present application, various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed method should not be interpreted as reflecting the following intension: the claimed application requires more features than those explicitly recorded in each claim. More precisely, as reflected in the following claims, the inventive aspects lie in having fewer features than all the features of the single embodiment disclosed earlier. Therefore, the claims that follow a specific embodiment are explicitly incorporated into this specific embodiment, where each claim itself serves as a separate embodiment of the present application.
In addition, it can be understood by those skilled in the art that although some embodiments described herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination.
Described above are only some specific embodiments of the present application, but the scope of protection of the present application is not limited to this. Any changes or replacements that can be easily conceived by those skilled in the art within the technical scope disclosed by the present application should be covered within the scope of protection of the present application. Therefore, the scope of protection of the present application should be accorded with the scope of protection of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202311459455.5 | Nov 2023 | CN | national |
