The invention relates to a device for storing objects under defined temperature conditions and humidity conditions according to the preamble of patent claim 1. In particular, the device is provided for curing objects made of concrete. The objects are, in particular, paving stones, concrete blocks, paving slabs or curbs, which are manufactured in a large number from concrete and after curing should have the same properties such as a substantially identical appearance and a substantially equal strength. This can be achieved during joint curing under defined temperature conditions and humidity conditions. The duration of curing can be shortened, for example, to 24 hours compared to uncontrolled curing objects made of concrete. At the same time, less binder, such as cement, can be used for the concrete, since the existing binder is almost optimally implemented with the adjusted humidity. The objects cured under suitable defined conditions also have a higher strength than uncontrolled cured objects made of concrete.
A known such device for curing concrete blocks has a shelving system, provides supply air with defined temperature conditions and humidity conditions and has for this purpose a climate system for providing the supply air and a flow pipe system for distributing the supply air provided in the climate system. The shelving system has a plurality of shelf supports and a plurality of bearing elements for supporting shelves supported on the shelf supports and arranged one above the other in a plurality of levels, wherein the objects to be cured are stored on the shelves.
In this known device, the supply air is distributed in the head region of the shelving system using pipes and led from there through a plurality of vertically arranged pipes of the flow pipe system into the foot region of the shelving system. Exhaust air is extracted in the head region of the shelving system. As a result of the air thus ascending along the shelves arranged one above the other, largely identical temperature conditions and humidity conditions are created at different heights of the shelving system.
A very high humidity is advantageous for the curing of concrete. This leads to a high dew point temperature and consequently to the fact that water from the supply air already condenses on parts of the shelving system, when these parts are only slightly cooler than the supply air. In particular, it has been found that moisture is deposited on the shelf supports in the foot region of the shelving system, that is, in a region in which the shelf supports are bedded in concrete into a base plate. In this region, the shelf supports are traditionally cooler than in higher regions of the shelving system.
The shelf supports are indeed usually galvanized, whereby a shielding effect and additional active corrosion protection is provided by acting as a sacrificial anode. Nevertheless, the permanent exposure of moisture results in a shortened service life of the corrosion protection and thus the risk of corrosion on the shelf supports, which are carrying parts of the shelving system.
The invention has for its object of also protecting the shelf supports from corrosion on their feet for a long period of time and thus to increase the service life of the shelving system.
The invention achieves this object using a device for the storage of objects under defined temperature conditions and humidity conditions according to patent claim 1. Further advantageous embodiments of the invention are specified in the subclaims.
In a device for the storage of objects, in particular for curing objects made of concrete, under defined temperature conditions and humidity conditions, having a shelving system having a plurality of shelf supports and having a plurality of bearing elements for supporting shelves supported on the shelf supports and arranged one above the other in a plurality of levels on which the objects are stored, the invention provides that a flow pipe system for distributing supply air provided in a climate system is at least partially integrated into the shelving system, wherein a plurality of shelf supports at least in sections at the same time are downward pipelines of the flow pipe system that the provided supply air is able to flow through.
The invention has first recognized that an improved corrosion protection is provided when the shelf supports are also kept above the dew point temperature in the foot region of the shelving system. Furthermore, the invention has recognized that an increase in the temperature of all shelf supports in the foot region of the shelving system is achieved when the supply air is led in close distances to the ground and there heats the base plate over a large area.
Furthermore, the invention has recognized that shelf supports are also heated in the foot region, when the supply air is led through said shelf supports and that at the same time the base plate is heated so evenly that adjacent shelf supports, through which no supply air is led, also assume a temperature above the dew point temperature. In particular, the invention utilizes the shelf supports present at tight distances as pipelines for the supply air, which is led with the flow pipe system into the foot region of the shelving system.
The shelf supports in this case are arranged so tightly that it is sufficient and is preferably provided to use only every second shelf support as a pipeline of the flow pipe system. The shelf supports, through which the supply air flows, are heated directly. The shelf supports through which the supply air does not flow are located so tightly to shelf supports through which supply air flows that a sufficient heating of all shelf supports also takes place in the foot region of the shelving system. In particular, each shelf support that supply air does not flow through has at least one adjacent shelf support, which is at the same time a pipeline of the flow pipe system and is therefore heated by the supply air and also sufficiently heats the adjacent shelf support. At the edges of the shelving system, the supply air preferably flows through each shelf support or other support and thus at least in sections at the same time a pipeline of the supply air pipe system. As a result, a sufficient heating of the base plate is ensured even in the edge regions of the shelving system. Shelf supports through which supply air flows and shelf supports which are not part of supply air pipe system are arranged like a checkerboard between the edges.
The service life of the device increases thanks to the invention. At the same time, even more uniform conditions, in particular for the curing of concrete, are created at the individual placement spaces for the objects in the shelving system, which again increases the quality, in particular the compressive strength, abrasion resistance and color uniformity of the cured objects made of concrete. The objects made of concrete are in particular paving stones, concrete blocks, pavement slabs or curbs.
All shelf supports of the shelving system are preferably manufactured from galvanized steel. At least the shelf supports, which at least in sections at the same time are downwards pipelines of the flow pipe system through which the provided supply air is able to flow, preferably each have a C-profile having an open side. Preferably, this open side, at least in the sections in which the respective shelf support is at the same time a pipeline of the flow pipe system, is closed by means of a cover element. The cover element is preferably a sheet metal profile, in particular a galvanized sheet metal profile. The C-profile thus ensures together with the cover element that the pipeline of the flow pipe system is circumferentially closed. The supply air is preferably fed to the shelf supports through separate pipelines, which are laid approximately at the level of the carrier elements.
In a particularly preferred embodiment of the invention, it is provided that the flow pipe system has a plurality of supply air openings for blowing the supply air from the flow pipe system, said supply air openings arranged in the foot region of the shelving system and each formed in a shelf support. In particular, such a supply air opening is provided at the foot of each shelf support, said supply opening in particular being formed to allow the supply air to flow on a base plate on which the shelving system is constructed. The supply air flowing out of the supply air openings is in particular heated and therefore heats the base plate.
The supply air openings preferably each have an adjustable opening width. As a result, adjustments can be made after the first commissioning of the device in order to achieve a distribution of the supply air which leads to a uniform temperature and humidity in all regions of the shelving system.
The shelving system advantageously has a plurality of carrier elements which connect the shelf supports in the head region of the shelving system. The carrier elements are preferably all manufactured from galvanized steel. Particularly preferably, it is further provided that a return pipe system for returning exhaust air is at least partially integrated into the shelving system. A plurality of carrier elements are at the same time from the exhaust air throughflow pipes of the return pipe system. In particular, the air is conducted through the room in which the shelving system is located. The air in this case is blown as supply air through the flow pipe system into the room and extracted from the room as exhaust air through the return pipe system. After appropriate treatment of the exhaust air, thus after adjusting the temperature and preferably also the humidity, the extracted exhaust air is fed back as supply air to the flow pipe system. Optionally, a further exhaust air device for extracting exhaust air into the environment is provided.
Preferably, at least the carrier elements, which are at the same time pipelines of the return pipe system through which exhaust air can flow, each have a C-profile having an open side. Advantageously, this open side is closed at least in the sections in which the respective carrier element is at the same time a pipeline of the return pipe system by means of a cover element. The cover element is preferably a sheet metal profile, in particular a galvanized sheet metal profile. The conduction of air of the exhaust air in the carrier elements takes place in particular according to the conduction of air of the supply air in the shelf supports.
The return pipe system, according to an advantageous embodiment of the invention, has a plurality of exhaust air openings arranged in the head region of the shelving system for sucking in the exhaust air into the return pipe system. The exhaust air openings are arranged in particular in the open sides of the carrier elements following a respective cover element. Preferably, a supply air opening is arranged on every second shelf support in the foot region and an exhaust air opening arranged in the head region of every second shelf support which is a shelf support without supply air opening. As a result, a densely-meshed network of supply air openings and exhaust air openings and a largely uniform directed upward flow distributed over the surface of the shelving system is provided past the shelves.
The device according to the invention having the flow pipe system partially integrated into the shelving system can also be used as a conventional shelving system, without the flow pipe system being supplied with supply air or being able to be supplied, in particular without the flow pipe system being part of a climate system. The device according to the invention can also be combined with an existing climate system or with parts of an existing heating system, if necessary also when required. Preferably, however, it is provided that the device for storing objects also has the climate system.
The climate system preferably has at least one air conditioning unit for providing the supply air having a creatable temperature or for providing the supply air having a creatable temperature and having a creatable humidity. The air conditioning unit is preferably fed the exhaust air in whole or in part on the input side from the return pipe system. The air conditioning unit is preferably formed to heat the supply air and optionally to moisten it. Advantageously, the air conditioning unit is also formed to dehumidify the supply air. Alternatively or additionally, the air conditioning unit is also formed to cool the supply air. Thus, the air conditioning unit can provide the supply air with a respectively desired temperature and humidity. The different functionalities for air conditioning in this case are either structurally distributed over a plurality of devices or consolidated in whole or in part in at least one air conditioning unit.
The climate system preferably has a controller which controls the at least one air conditioning unit in such a way to keep the temperature and humidity in the region of the shelving system in a predetermined range by means of the temperature and humidity of the supply air. For this purpose, preferably at least one temperature sensor and at least one moisture sensor are provided in the region of the shelving system. The sensors provide the controller with measured values. The controller controls the air conditioning unit based on these measured values. In particular, the climate system is formed for maintaining a temperature in the region of the shelving system in a range between 20° C. and 40° C., in particular between 30° and 40°. Advantageously, the climate system is also formed for maintaining a humidity in the region of the shelving system of more than 40%, preferably more than 60%, more preferably more than 90%, in particular in a range of 94% to 97% or 95% to 96%. Corresponding climate values have proven particularly suitable for curing concrete. An alternative embodiment of the invention eliminates the moisture control including the humidity sensor.
Particularly preferably, the device according to the invention is formed for curing concrete. The objects to be stored in the shelving system consist of concrete or have concrete. For example, shelves are placed in storage in the shelving system with concrete blocks shortly after the manufacture of the concrete blocks, where the concrete blocks, thanks to the climate provided by the invention, cure within a short time so far that they can be removed again after 24 hours from the shelving system and, for example, can be shot peened in a further treatment. Immediately afterwards, the shelving system can already be refilled with further objects made of concrete to be cured. The climate is almost permanent in the region of the shelving system, which in principle favors corrosion. Thanks to the invention, however, the formation of dew at the feet of the shelf supports is effectively counteracted, so that an advantageously extended service life and useful life of the shelving system is achieved.
The shelving system preferably has a steel substructure. The shelf supports are supported on said steel substructure. The steel substructure in this case is preferably cast in a base plate. The base plate is cast in particular of floating screed. The shelf supports protrude from the base plate. Before the base plate is cast, the steel substructure is leveled to later achieve a horizontal alignment of the shelves.
In a preferred embodiment of the invention, it is provided that rails are fastened on the steel substructure. Carriages for the transport of the shelves to be supported on the bearing elements with the objects to be stored in the shelving system can travel on these rails. The rails should be oriented horizontally. Thanks to the fastening of the rails on the steel substructure, the rails are necessarily oriented horizontally when the steel substructure is oriented horizontally. It thus only needs to be leveled once. The rails are preferably fastened on the steel substructure by means of clamps.
Conventionally, known bearing elements are suspended for supporting shelves in known shelf supports, which for this purpose have a plurality of holes. In an advantageous embodiment of the invention, however, it is provided that the bearing elements according to the invention for supporting the shelves are tightly screwed to the shelf supports. The shelf supports in this case are preferably closed at least in sections, on which sections the bearing elements rest, thus formed without holes for suspending bearing elements. As a result, the shelf supports can be used particularly advantageously as pipelines through which the supply air is able to flow through without supply air being able to escape through such holes.
Particularly preferably, the bearing elements are tightly screwed to the shelf supports with thread-forming screws. In particular, the screws do not cut into the shelf supports. As a result, the surface of the shelf supports coated with zinc or a zinc compound is retained, so that the corrosion protection on the shelf supports is retained even in the regions in which the screws are screwed in.
The bearing elements are advantageously made of strip galvanized steel. In particular, the bearing elements are galvanized by means of a magnesium-zinc coating. Such a coating is commercially available, for example, under the trade name “Magnelis”. The corrosion protection is further improved with this coating, in particular in the region of the thread formed in the shelf supports. All other parts made of steel of the shelving system, in particular the shelf supports, the carrier elements and the screws, are advantageously piece-galvanized.
In a particularly preferred embodiment of the invention, the bearing elements have a specially developed shape which allows the bearing elements to carry high loads on the shelves. In particular, it is provided that the bearing elements each consist of a multi-angled sheet metal. This sheet advantageously has an upper contact surface, through which the bearing element is tightly screwed to the shelf supports, and a lower contact surface, through which the bearing element is also tightly screwed to the shelf supports. The contact surfaces lie flat against the mounted bearing elements on the sides of the shelf supports. In this case, the bearing elements for the shelf supports are each tightly screwed to two heights on the shelf supports.
More preferably, the sheet, which forms the bearing element, has a flat bearing surface for a shelf between the upper contact surface and the lower contact surface. The shelf is preferably a board, in particular a wooden board. Advantageously, the angled plate further has an inclined support surface which connects the bearing surface to the lower contact surface. As a result, the support surface is advantageously supported in the region of an outer edge of the bearing element. More preferably, the angled sheet has an oblique connection surface which connects the bearing surface to the upper contact surface. The oblique connection surface increases obliquely from the flat bearing surface to the upper contact surface. A chamfer is preferably provided above the upper contact surface for maintaining space of a shelf placed on the respective bearing element from the shelf support. The bearing element is again angled several times in the region of the chamfer. The chamfer effectively counteracts tilting of the shelves when loading the shelving system. As a result, the shelf supports, the bearing elements and the shelves are protected from damage, which could cause tilted shelves through collision with the shelving system. A thus less frequent occurrence of damage minimizes production interruptions and reduces costs. The chamfer is formed and arranged such that each customary shelf, in particular having a thickness in the range of 10 mm to 60 mm, is located at least partially at the level of the respective chamfer during loading. Thanks to the chamfers, screw heads of the screws are also protected against contact with the shelves, by means of said screws the shelf supports are tightly screwed in the region of the upper contact surface, in particular when laying the shelves on the bearing elements.
Further embodiments are apparent from the claims, from the drawings and from the following description of an embodiment of the invention represented in the drawings. The drawings show:
In the embodiment according to
The climate system 2 has an air conditioning unit 5 that draws in air through a return pipe system 6 and provides it with a desired temperature and desired humidity in a flow pipe system 7. The return pipe system 6 has a return collection channel 8. The flow pipe system 7 has a flow collection channel 9. The collection channels 8 and 9 extend in the head region of the shelving system 1 along the first two rows with the supports 3 of the shelving system 1. Numerous return collection channel connections 10 are provided on the return collection channel 8, by means of said return collection channel connections the carrier elements 4 are connected to the return collection channel 8. A flow distribution pipe 11 is arranged in each case parallel to each carrier element 4 and connected to the flow collection channel 9. Each flow distribution pipe 11 has in each case five or six flow distribution pipe connections 12, by means of which the flow distribution pipes 11 are connected in total to every second shelf support 3 and to every second support 3 in the second row. The flow distribution pipe connections 12 in this case are arranged offset from one another in such a way that in every row of the shelving system 1 with shelf supports 3 every second shelf support 3 and transverse to the rows along the respective flow distribution pipe 11, every second shelf support 3 is also connected to the flow pipe system 7.
The carrier elements 4 are all parts of the return pipe system 6 and connected to the return collection channel 8 via the return collection channel connections 10. The carrier elements 4 in this case are C-profiles, which are closed by cover element 13. Three cover elements 13 are individually designated in
At least the supports 3, which are part of the flow pipe system 7, that is, in particular the supports 3.02.07 and 3.02.09 each have a cover element 15, which is individually designated on the support 3.02.07 with 15.02.07 and on the support 3.02.09 with the reference numeral 15.02.09.
The shelf supports 3.12.17 and 3.12.19 are further formed by means of the cover elements 15.12.17 and 15.12.19 to pipes in which the supply air flows downward and can flow out through supply air openings 20, which are individually designated here by the reference numerals 20.12.17 and 20.12.19. The supply air openings 20 can be adjusted, wherein the throughput of supply air is adjusted by the supply air openings 20. The shelf supports 3 are fastened by means of angle plates and screw connections on the steel substructure 17. After the construction and alignment of the shelving system 1, the substructure 17 is cast into a base plate and is therefore no longer visible during operation of the shelving system 1. The entire steel substructure 17 and the running rails 19 are bedded with concrete by casting the base plate. The base plate thus produced counteracts a bending of the running rails 19, even when there is a carriage for loading the shelving system 1 on these rails 19.
The carriage is in particular a loading device and can have a weight of several tons. The carriage preferably carries at the same time all shelves that are to be arranged one above the other in a section of the shelving system 1. All these shelves are stored at the same time on the bearing elements 21 provided for this purpose. After curing of the objects, all shelves respectively arranged one above the other are raised together again and moved with the carriage to one end of the respective passage. Preferably, after this, shelves having objects to be cured are again moved by means of the carriage into the region with the now free-standing bearing elements 21 and placed on these shelves. This is preferably done fully automatically.
A plurality of bearing elements 21 can be seen in the sectional view of the device according to the invention having the shelving system 1 and the climate system 2 according to
A detail designated “R” having two identical bearing elements 21 in
All the features mentioned in the preceding description and in the claims can be combined in any selection with the features of the independent claim. The disclosure of the invention is therefore not limited to the described and/or claimed combinations of features, but rather all feature combinations meaningful in the context of the invention are to be regarded as disclosed.
Number | Date | Country | Kind |
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10 2018 122 196.7 | Sep 2018 | DE | national |
Number | Name | Date | Kind |
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1441661 | Church | Jan 1923 | A |
1492188 | Young | Apr 1924 | A |
1969126 | Forse | Aug 1934 | A |
2995257 | Blaise | Aug 1961 | A |
4244904 | Drain | Jan 1981 | A |
4772439 | Trevino-Gonzalez | Sep 1988 | A |
20050235518 | Binder | Oct 2005 | A1 |
20180120022 | Rindlisbach | May 2018 | A1 |
Number | Date | Country |
---|---|---|
204229630 | Mar 2015 | CN |
107144100 | Sep 2017 | CN |
190709752 | Aug 1907 | GB |
126813 | May 1919 | GB |
H09360 | Jan 1997 | JP |
H107208 | Jan 1998 | JP |
2001-095632 | Apr 2001 | JP |
2001095632 | Apr 2001 | JP |
2015-190678 | Nov 2015 | JP |
Entry |
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Machine translation CN204229630U (Year: 2015). |
Machine translation JPH09360A cited in JP20010956332A (Year: 1997). |
Machine translation JPH107208A (Year: 1998). |
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Number | Date | Country | |
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20200078985 A1 | Mar 2020 | US |