Patent Application
20190285270
The present invention relates to a system, in which a display is mounted to a steam generating device to monitor a driving situation or an erroneous operation situation of the steam generating device through the display.
A related art for a steam generating device is variously disclosed in Korean Patent No. 10-1797384, Korean Patent Application Laid-Open No. 10-2009-0079486, and the like, and most of the inventions have been derived while focusing on an operational scheme or a structural characteristic in order to improve thermal efficiency of the steam generating devices, so that the inventions do not present the configuration of monitoring an operation situation of the steam generating device in real time or preparing a problem situation on an assumption of the problem situation.
In the meantime, Korean Patent No. 10-1187929 discloses a steam generating device including: a water level detecting unit, which detects a water level within a steam tank; a pressure switch, which measures pressure within the steam tank; a temperature sensor, which measures a temperature within the steam tank; and a controller, which controls on/off of power of a water supply pump according to a water level detected by the water level detecting unit, and controls on/off of power applied to electric heaters of a preheating tank and the steam tank according to the temperature measured by the temperature sensor, to monitor the steam generating device by the controller.
However, in the steam generating device, a characteristic of the steam generating device, in which each configuration is organically operated, is not reflected, and each measurement element is individually determined and only a fragmentary action is taken, so that it is not easy to recognize a reason of an erroneous operation and there is a limit in preventing an erroneous operation situation.
(Patent Document 1) Korean Patent No. 10-1187929 (Sep. 26, 2012)
(Patent Document 2) Korean Patent No. 10-1386208 (Apr. 10, 2014)
The present invention has been made in an effort to provide a monitoring system for a steam generating device, which is capable of monitoring an operation situation of a steam generating device through a simple screen configuration in real time at a glance, and is capable of enabling a user to diversely analyze reasons caused by various factors when an abnormal operation is generated and cope with the abnormal operation.
An exemplary embodiment of the present invention provides a monitoring system for a steam generating device mounted with a display, the monitoring system including: a water tank 110, which is provided with a water level sensor 110 which measures a water level of stored water; a burner 400, which generates heat; a boiler tank 300, which receives water from the water tank 100 and receives heat by the burner 400 to generate steam, and is provided with a water level sensor 310 measuring a water level of supplied water, a pump 320 supplying water from the water tank 100, a thermistor 330 measuring an internal temperature, a pressure switch 340 measuring an internal pressure, and an air purge 350 discharging condensed air inside a boiler when a temperature measured by the thermistor 330 is equal to or lower than a reference temperature; and a display 700, on which a screen monitoring driving situations of the water tank 100, the boiler tank 300, and the burner 400 is output, in which the burner 400 is a burner generating heat by combustion of fuel or a heater generating heat by electricity, the water level sensor 310 is formed of a high-water level sensor 311 and a low-water level sensor 312 vertically disposed inside the boiler tank 300, the display 700 includes: a standby screen 701 output in a standby state, in which power is applied to the steam generating device 10 and the system is not booted; and a driving screen 702 output in a driving state, in which power is applied to the steam generating device 10 and the system is booted, the driving screen 702 includes: a water tank state output section 710 outputting a water charging state of the water tank according to the water level sensor 110 of the water tank; a boiler state output section 730 outputting a water charging state of the boiler tank according to the water level sensor 310 of the boiler tank and outputting an error state when an abnormal state is detected by the water level sensor 310 or the thermistor 330 of the boiler tank; a combustion state output section 740 outputting a state of the burner 400, and outputting an error state when an abnormal state is detected by the pressure switch 340 of the boiler tank; and a message output section 750 outputting a message or an error code according to a driving situation of the steam generating device 10, an icon output in the water tank state output section 710 includes: a normal state icon 711 indicating a normal state when water is detected by the water level sensor 110 of the water tank 100; and a refill request icon 712 indicating a state, in which water is not detected by the water level sensor 110 of the water tank 100 and water charging is required, an icon output in the boiler state output section 730 includes: a standby state icon 732 indicating a standby state, in which water is not detected by the water level sensor 110 of the water tank 100, water is not detected by the high-water level sensor 311 of the boiler tank 300, and a pump 320 is not operated; a charging state icon 733 indicating that the pump 320 is continuously operated in a state where water is detected by the water level sensor 110 of the water tank 100 and water is detected by the high-water level sensor 311 of the boiler tank 300, so that the boiler tank 300 is in a charging state until water is detected by the high-water level sensor 311 of the boiler tank 300; a normal state icon 731 indicating a normal state, in which water is detected by the high-water level sensor 311 of the boiler tank 300 and an operation of the pump 320 is stopped; a recharging state icon 734 indicating a recharging state, in which the pump 320 is operated and the air purge 350 is not operated in a state where water is detected by the water level sensor 110 of the water tank 100, water is detected by the low-water level sensor 312 of the boiler tank 300, and water is not detected by the high-water level sensor 311; a water level error icon 735 indicating that the water level sensor 310 is in an error state when a low water level or a high water level is not detected in a situation where a low water level or a high water level needs to be detected; a pump error icon 736 indicating that an operation time of the pump 320 is exceeded when the pump 320 is continuously operated in a situation where the operation of the pump 320 needs to be stopped; and a thermistor error icon 737 indicating that the steam generating device has abnormality when a temperature value measured by the thermistor 330 deviates from a normal range, an icon output in the combustion state output section 740 includes: a normal state icon 741 indicating that the internal pressure of the boiler tank is in a normal state when it is measured that a pressure of the pressure switch 340 reaches a reference pressure value, so that the pressure switch 340 is operated (off state); a standby state icon 742 indicating that the burner 400 is in a standby state when water is not detected by the water sensor 310 of the boiler tank, or an error is detected in the water level sensor 310 or the thermistor 330 of the boiler tank; and a pressure switch error icon 744 indicating that the pressure switch 340 is in an error state when the reference pressure value is measured in a state where a temperature of the thermistor 330 is low, a message output from the message output section 750 includes: a situation notification message 751 formed of messages notifying a situation of the steam generating device 10 including an attention requiring situation, a wait requiring situation, and a steam preparation completion situation; and an error code message 752 outputting an error code according to a situation when an error situation is detected in the boiler tank 300 or the burner 400, entire accumulated hours, for which the steam generating device is booted and is used, are displayed on the standby screen 701, a temperature value measured by the thermistor 330 of the boiler tank 300 and an operation state of the air purge 350 are displayed on the message output section 750 in the form of an icon, when the pump 320 is being operated, but water is not detected by the water level sensor 310 during an operation of a steam boiler, the water level error icon 735 is output on the boiler state output section 730 and an error code according to the water level error icon 735 is output on the message output section 750, when only a high water level is detected by the water level sensor 310, but a low water level is not detected during an initial operation or driving of the steam boiler, the water level error icon 735 is output on the boiler state output section 730 and an error code according to the water level error icon 735 is output on the message output section 750, when the air purge 350 and the pump 320 are being operated, but the reference pressure value is measured by the pressure switch 340, the water level error icon 735 is output on the boiler state output section 730 and an error code according to the water level error icon 735 is output on the message output section 750, when the air purge 350 is being operated and the pump 320 is not operated, but the reference pressure value is measured by the pressure switch 340, the pressure switch error icon 744 is output on the combustion state output section 740 and an error code according to the pressure switch error icon 744 is output on the message output section 750, when water is not detected by the water level sensor 310 of the boiler tank 300 and the operation of the pump 320 exceeds a predetermined time in an initial charging state, in which a temperature value equal to or smaller than a reference value is measured by the thermistor 330, the pump error icon 736 is output on the boiler state output section 730 and an error code according to the pump error icon 736 is output on the message output section 750, when a low water level is detected by the water level sensor 310 of the boiler tank 300 and the operation of the pump 320 exceeds the predetermined time in a recharging state, in which a temperature value equal to or larger than the reference value is measured by the thermistor 330, the pump error icon 736 is output on the boiler state output section 730 and an error code according to the pump error icon 736 is output on the message output section 750, when a temperature below zero is detected by the thermistor 330, the thermistor error icon 737 is output on the boiler state output section 730 and an error code according to the thermistor error icon 737 is output on the message output section 750, when a temperature equal to or higher than 300° C. is detected by the thermistor 330, the normal state icons 711, 721, 731, and 741 and error codes according to the normal state icons 711, 721, 731, and 741 are output on the message output section 750, when a temperature in a range of 200° C. to 250° C. is detected by the thermistor 330, the thermistor error icon 737 is output on the boiler state output section 730 and an error code according to the thermistor error icon 737 is output on the message output section 750, the attention requiring situation of the situation notification message 751 includes a situation where the water tank 100 is being charged or the fuel tank 200 is being charged, the standby requiring situation of the situation notification message 751 includes a situation where both the water tank 100 and the fuel tank 200 are in the normal state and the boiler tank 300 is being charged or the burner 400 is being operated, and the steam preparation completion situation of the situation notification message 751 includes a situation where all of the water tank 100, the fuel tank 200, the boiler tank 300, and the burner 400 are in the normal state.
The burner 400 is a combustion type, and is provided with an air blowing fan 410, which discharges exhaust gas generated during combustion and a flame detecting sensor 440, which detects flame during combustion, the icon output in the combustion state output section 740 further includes: an on-combustion icon 743 indicating on-combustion when the burner 400 combusts fuel and heats the boiler tank 300; and a flame detection error icon 745 indicating that the flame detecting sensor 440 is in an error state when flame is not detected by the flame detecting sensor 440 of the burner 400 during the combustion or flame is detected during non-combustion, when the air blowing fan 410 of the burner 400 is being operated and a low water level or a high water level is detected by the water level sensor 310 of the boiler tank 300, but flame is not detected by the flame detecting sensor 440 of the burner 400, the flame detection error icon 745 is output on the combustion state output section 740 and an error code according to the flame detection error icon 745 is output on the message output section 750, and when water is not detected by the water level sensor 310 of the boiler tank 300, but flame is detected by the flame detecting sensor 440 of the burner 400, the flame detection error icon 745 is output on the combustion state output section 740 and an error code according to the flame detection error icon 745 is output on the message output section 750.
When the temperature measured by the thermistor 330 is equal to or lower than 80° C. at an initial driving, or the steam generating device is being cooled after the driving for a predetermined time, not at the initial driving, or the boiler tank 300 is in a charging state, a valve is opened by the air purge 350, and when the temperature measured by the thermistor 330 is equal to or higher than 80° C. in the state where the pressure measured by the pressure switch 340 increases, the valve is blocked by the air purge 350.
The present invention has the effect below.
That is, it is possible to monitor an operation situation of a steam generating device through a simple screen configuration in real time at a glance, and enable a user to diversely analyze reasons caused by various factors when an abnormal operation is generated and cope with the abnormal operation.
Hereinafter, an exemplary embodiment of the present invention will be described based on the accompanying drawings. However, the scope of the present invention shall be recognized by the description of the claims. Further, a description of a publicly known technology, which makes an essential point of the present invention be obscure, is omitted.
The present invention relates to a monitoring system for a steam generating device mounted with a display, and relates to a system, in which a steam generating device (ex. steam boiler) 10 including a water tank 100, a fuel tank 200, a boiler tank 300, and a burner 400 is mounted with a display 700 to monitor a driving situation or an erroneous situation of the steam generating device 10 through the display 700 as illustrated in
A water level sensor 110, which measures a water level of stored water is installed in the water tank 100, in which water to be supplied to the boiler tank 300 is stored, and a water level sensor 210, which measures a water level of stored fuel, is installed in the fuel tank 200, in which fuel to be supplied to the burner 400 is stored.
The boiler tank 300 is supplied with water from the water tank 100 and is supplied with heat by the burner 400 to generate steam, and is provided with a water level sensor 310, which measures a water level of received water, a pump 320, which supplies water from the water tank 100, a thermistor 330, which measures an internal temperature, a pressure switch 340, which measures an internal pressure, and an air purge 350, which discharges condensed air inside the boiler when the temperature measured by the thermistor 330 is equal to or lower than a reference temperature.
In the meantime, the water level sensor 110 for the water tank 100 and the water level sensor 210 for the fuel tank 200 among the respective water level sensors mentioned in the present invention aim to detect the water levels inside the tank and smoothly supply water and fuel, and prevent damage due to idle running of the water pump 320 and the fuel pump due to the stop of the operation when the water level is not detected.
The water level sensor 310 of the boiler tank 300 includes commonly used three water level sensors (a high-water level sensor, a low/high-water level detection signal common connection sensor, and a low-water level sensor) detecting high/low-water levels, respectively, and “a water level is not detected” means the state where water is not detected by any one of the high-water level sensor, the low/high-water level detection signal common connection sensor, and the low-water level sensor). Further, “a water level is detected” means any one of the state where the low-water level sensor and the common connection sensor simultaneously detect water, the state where the high-water level sensor and the common connection sensor simultaneously detect water, and the state where the low-water level sensor, the common connection sensor, and the high-water level sensor simultaneously detect water.
In this case, the air purge 350 serves to remove condensed air inside the boiler in an initial state where a temperature of water inside the boiler increases and a pressure of the boiler simultaneously increases. When the condensed air is not removed in the initial state, a pressure sharply increases even though water is not completely heated, so that a pressure of a reference pressure (8.5 bars) or more operates the pressure switch 340 to stop the driving of the boiler. Accordingly, in order to prevent the abnormal pressure from sharply increasing due to the inside condensed air according to an increase in a temperature of water of the boiler, a valve (a solenoid valve, and the like) is opened at a temperature of a regulated predetermined temperature (for example, about 80° C.) or lower so as to remove the condensed air in a vacuum state inside the boiler to prevent an internal pressure of the boiler tank 300 from sharply increasing, and the valve is blocked at the regulated predetermined temperature or higher in order to prevent steam inside the boiler from leaking to the valve when the pressure of the boiler increases by a normal increase in pressure.
In the meantime, when an air purge valve is opened in a situation where the steam generating device is cooled after the driving for a predetermined time, not the initial driving, even the steam remaining in the boiler tank 300 is discharged to damage the water tank, so that it is preferable to drive the air purge 350 and open the air purge valve when the internal temperature of the boiler is decreased and the steam (gas) becomes a water (liquid) state.
The burner 400 combusts fuel received from the fuel tank 200 and generates heat, and is provided with an air blowing fan 410, which discharges exhaust gas generated during the combustion, and a flame detecting sensor 440, which detects flame during the combustion, and the burner 400 corresponds to only to a combustion-type steam generating device. The air blowing fan 410 also serves to discharge exhaust gas and isolate the outside and the inside of the boiler. In the meantime, in the case of an electric steam generating device, the burner 400 is replaced with a heater, which receives electricity and generates heat, and the fuel tank 200 is not required.
The display 700 is a part, on which a screen for monitoring the driving situations of the water tank 100, the fuel tank 200, the boiler tank 300, and the burner 400 is output, and is formed at one side of an upper end of a product formed with the steam generating device 10.
The screen output on the display 700 is formed of a wait screen 701 output in a standby state, in which power is applied to the steam generating device 10 and the system is not booted as illustrated in
In the wait screen 701, total operating hours of a product, that is, entire accumulated hours, for which the steam generating device is booted and is used, may be displayed, and corresponds to “OPERATING TIME: 0010 hours” illustrated in
In the meantime, a booting screen 701a illustrated in
The driving screen 702 is formed of a water tank state output section 710, a fuel tank state output section 720, a boiler state output section 730, a combustion state output section 740, and a message output section 750 as illustrate din
The water tank state output section 710 is a section outputting a water charging state of the water tank according to the water level sensor 110 of the water tank, and a normal state icon 711 or a refill request icon 712 may be output as illustrated in
The normal state icon 711 is an icon indicating a normal state, in which a water level is detected by the water level sensor 110 of the water tank 100, as illustrated in
The fuel tank state output section 720 is a section outputting a fuel charging state of the fuel tank according to the water level sensor 210 of the fuel tank, and a normal state icon 721 or a refill request icon 722 may be output as illustrated in
The normal state icon 721 is an icon indicating a normal state, in which a water level is detected by the water level sensor 210 of the fuel tank 200, as illustrated in
The refill request icons 712 and 722 of the water tank state output section 710 and the fuel tank state output section 720 may be formed to flicker in order to clearly notify the user of the necessity of the charging of water or fuel.
The boiler state output section 730 is a section, which outputs a water charging state of the boiler tank according to the water level sensor 310 of the boiler tank, and outputs an error state when an abnormal state is detected by the water level sensor 310 or the thermistor 330 of the boiler tank, and is formed of a normal state icon 731, a standby state icon 732, a charging state icon 733, a recharging state icon 734, a water level error icon 735, a pump error icon 736, and a thermistor error icon 737 as illustrated in
The standby state icon 732 is an icon indicating a standby state, in which a water level is not detected by the water level sensor 110 of the water tank 100, a water level is not detected by the low-water level sensor of the boiler tank 300, and the pump 320 is not operated, as illustrated in
The charging state icon 733 is an icon indicating that a water level is detected by the water level sensor 110 of the water tank 100, a water level is not detected by the low-water level sensor of the boiler tank 300 or a low water level is detected, and the pump 320 is continuously operated, so that the boiler tank 300 is in a charging state until a high water level is detected by the water level sensor 310 of the boiler tank 300, as illustrated in
The normal state icon 731 is an icon indicating a normal state, in which a high water level is detected by the water level sensor 310 of the boiler tank 300 and the operation of the pump 320 is stopped, as illustrated in
The recharging state icon 734 is an icon indicating a recharging state, in which the pump 320 is operated in the state where a water level is detected by the water level sensor 110 of the water tank 100, a low water level is detected by the water level sensor 310 of the boiler tank 300, and a high water level is not detected, and the air purge 350 is not operated, as illustrated
The water level error icon 735 is an icon indicating that the water level sensor 310 is in an error state when a low water level or a high water level is not detected in a situation where a low water level or a high water level needs to be detected, as illustrated in
The pump error icon 736 is an icon indicating that the pump 320 is in an error state when the pump 320 is continuously operated in a situation where the operation of the pump 320 needs to be stopped as illustrated in
The thermistor error icon 737 is an icon indicating that the thermistor 330 is in an error state, in which a temperature value measured by the thermistor 330 deviates from a normal range, and when a resistance value of the thermistor 330 is infinite, so that a temperature below zero is detected, or when the thermistor 330 is burned and sticks due to a short phenomenon and becomes a state where there is no resistance value, and a temperature of 300° C. or higher is detected, the thermistor error icon 737 flickers to notify the user that the machine has abnormality.
The combustion state output section 740 is a section, which outputs a combustion state of the burner 400 and outputs an error state when the pressure switch 340 of the boiler tank or the flame detecting sensor 440 of the burner detects an abnormal state, and is formed of a normal state icon 741, a standby state icon 742, an on-combustion icon 743, a pressure switch error icon 744, and a flame detection error icon 745, as illustrated in
The normal state icon 741 is an icon indicating that the internal pressure of the boiler tank is in a normal state when the internal pressure of the boiler tank reaches a reference pressure value of the pressure switch 340 and the boiler tank is operated as illustrated in
The standby state icon 742 is an icon indicating that the burner 400 is in a standby state when water is not detected by the water level sensor 310 of the boiler tank, or an error is detected in the water level sensor 310, the pump 320, or the thermistor 330 of the boiler tank as illustrated in
The on-combustion icon 743 is an icon indicating that the fuel is in the on-combustion state when the burner 400 combusts fuel to heat the boiler tank 300 as illustrated in
The pressure switch error icon 744 is an icon indicating that the pressure switch 340 is in an error state when the pressure value reaches the reference pressure value in the state where a temperature of the thermistor 330 is low as illustrated in
The flame detection error icon 745 is an icon indicating that the flame detecting sensor 440 is in an error state when flame is not detected by the flame detecting sensor 440 of the burner 400 during the combustion or when the flame is detected by the flame detecting sensor 440 of the burner 400 during the non-combustion as illustrated in
The message output section 750 is a section outputting a message or an error code according to a driving situation of the steam generating device 10, and a situation notification message 751 or an error code message 752 may be output as illustrated in
The situation notification message 751 is formed of a message notifying a situation, such as an attention requiring situation, a wait requiring situation, and a steam preparation completion situation, of the steam generating device 10.
In the attention requiring situation, message “ATTENTION REQUIRED” is output as illustrated in
In the wait requiring situation, message “PLEASE WAIT” is output as illustrated in
In the steam preparation completion situation, message “STEAM READY” is output as illustrated in
The error code message 752 is formed of a message outputting an error code according to a situation when an error situation is detected in the boiler tank 300 or the burner 400.
The error code according to each situation may be output as represented in Table 1 below (see
For each of the error codes, a detailed phenomenon description, a reason of the phenomenon, and a measure according to each error code may be guided by a manual separately provided to the user and the like.
In the meantime, in addition to the message, the temperature value measured by the thermistor 330 of the boiler tank 300 may be output in real time on the message output section 750 (T in
When the driving of the steam generating device is stopped, the termination of the driving of the steam generating device and the matters to be attended in storage of the steam generating device are output in the form of the message while the exit screen 703 is output as illustrated in
The foregoing configuration is related to the combustion-type boiler, which burns fuel and generates steam, and the electric boiler, which generates steam by heat generated by electricity does not require a fuel tank, so that in the electric boiler, the water tank state output section 710 may be output instead of the fuel tank state output section 720. Further, an icon output in the combustion state output section 740 may also be formed of a standby state icon 742e and an on-heating icon 743e in accordance with the electric type as illustrated in
Further, regarding the error code, DF41 and DF42 corresponding to the error codes related to the burner 400 are not applicable to the electric type boiler.
The foregoing present invention is not limited to the exemplary embodiment and the accompanying drawings, and it may be apparent to those skilled in the art that the present invention may be variously substituted, modified, and changed within the range of the technical spirit of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2018-0029613 | Mar 2018 | KR | national |
