CN219868250U - Dual-system environmental control equipment capable of mutually backing up by utilizing three compressors - Google Patents
Dual-system environmental control equipment capable of mutually backing up by utilizing three compressors Download PDFInfo
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- CN219868250U CN219868250U CN202320826513.2U CN202320826513U CN219868250U CN 219868250 U CN219868250 U CN 219868250U CN 202320826513 U CN202320826513 U CN 202320826513U CN 219868250 U CN219868250 U CN 219868250U
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- electromagnetic valve
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- 230000007613 environmental effect Effects 0.000 title claims abstract description 31
- 230000009977 dual effect Effects 0.000 claims 3
- 238000005057 refrigeration Methods 0.000 description 33
- 239000007788 liquid Substances 0.000 description 24
- 239000011521 glass Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a double-system environmental control device capable of backing up mutually by utilizing three compressors, which comprises a first refrigerating system, a second refrigerating system and a backup compressor, wherein the first refrigerating system comprises a first compressor, a first condenser and a first evaporator, the second refrigerating system comprises a second compressor, a second condenser and a second evaporator, and solenoid valves are respectively arranged at the return ports and outlet end pipelines of the first compressor and the second compressor; the return port and the outlet end of the backup compressor are respectively connected with two pipelines, each pipeline is respectively provided with an electromagnetic valve, the outlet end pipeline is respectively connected to the outlet end pipelines of the first compressor and the second compressor in a bypass way, and the return port end pipeline is respectively connected to the return port end pipelines of the first compressor and the second compressor in a bypass way. The utility model can meet the redundant backup environment adjusting function under any working condition.
Description
Technical Field
The utility model relates to the field of environmental control equipment, in particular to dual-system environmental control equipment capable of mutually backing up by utilizing three compressors.
Background
The environmental control equipment is used as overall temperature and humidity control equipment and mainly completes the functions of temperature adjustment, dehumidification and ventilation in the environmental control equipment. The overall requirement is that the dual-system environmental control equipment is adopted to provide temperature and humidity guarantee for the environmental control equipment, and meanwhile, in the using process of the environmental control equipment, if the compressors of one side or two sides of the refrigerating system fail and cannot work, the backup compressors are used for backing up the refrigerating system at one side through control switching, so that the overall internal temperature and humidity regulation function is realized, or the derating backup use is realized for the refrigerating system at two sides. Because of the different use conditions of the redundant adjustment of the compressors, the conventional redundancy method of the refrigerating system cannot be satisfied, and therefore, the redundancy method for the mutual backup of three compressors is provided, and the redundant backup environment adjustment function under any working condition can be satisfied.
Disclosure of Invention
The utility model provides a dual-system environment-control device capable of mutually backing up by utilizing three compressors, which solves the problem that the redundancy scheme of the refrigeration system of the environment-control device in the prior art cannot meet the needs of various working conditions.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the double-system environmental control equipment capable of mutually backing up by utilizing three compressors comprises a first refrigerating system, a second refrigerating system and a backup compressor, wherein the first refrigerating system comprises a refrigerating circulation loop formed by connecting a first compressor, a first condenser and a first evaporator through pipelines, the second refrigerating system comprises a refrigerating circulation loop formed by connecting a second compressor, a second condenser and a second evaporator through pipelines, and electromagnetic valves are respectively arranged on return port end pipelines and outlet end pipelines of the first compressor and the second compressor; the outlet end of the backup compressor is connected with two paths of output pipelines, each path of output pipeline is respectively provided with an electromagnetic valve, and the two paths of output pipelines are respectively connected to the outlet end pipelines of the first compressor and the second compressor in a bypass way; the return port end of the backup compressor is connected with two return air pipelines, each return air pipeline is respectively provided with an electromagnetic valve, and the two return air pipelines are respectively connected to the return port end pipelines of the first compressor and the second compressor in a bypass mode.
Further, the return port end of the first compressor is also connected with the return port end of the second compressor through a pipeline with an electromagnetic valve, and the outlet end of the first compressor is also connected with the outlet end of the second compressor through a short circuit with the electromagnetic valve.
Furthermore, the electromagnetic valves are electromagnetic stop valves.
Further, the electromagnetic valve control system further comprises a controller, wherein the controller is electrically connected with each electromagnetic valve control.
The utility model comprises two refrigeration systems, each refrigeration system comprises 1 compressor, and the backup compressors are respectively connected with the compression of the other two systems in parallel through pipelines and electromagnetic valves. If a certain compressor fails, the environmental control equipment can be controlled to be opened and closed through the electromagnetic valve, and the normal use of each refrigerating system is ensured through the backup use among the compressors under the condition of no shutdown.
Compared with the prior art, the utility model has the advantages that:
1. the utility model relates to a double-system ring control device capable of backing up three compressors, which can ensure the normal use of each refrigerating system by controlling the opening and closing of electromagnetic valves and backing up the compressors under the condition of no shutdown if the compressors in the system fail.
2. The two systems of the utility model are mutually independent, can work simultaneously or independently, and do not influence the normal work of the other system when one system fails.
3. The utility model has three control modes of local control, automatic operation and upper computer program control, flexible control and convenient operation, and can remotely control the temperature, humidity and air flow rate of the air in the whole body, the working state of the environmental control equipment and fault information through the upper computer.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
As shown in fig. 1, this embodiment discloses a dual-system environmental control device capable of backing up with each other by using three compressors, including a first refrigeration system, a second refrigeration system, and backup compressors 1-3.
The first refrigeration system comprises a first compressor 1-1, a first condenser 2-1 provided with a first condensing fan 9-1, a first liquid reservoir 3-1, a first sight glass 4-1, a first expansion valve 5-1, a first evaporator 6-1 provided with a first centrifugal fan 8-1, and a first gas-liquid separator 7-1. The outlet end of the first compressor 1-1 is connected with the inlet end of the first condenser 2-1 through a pipeline with a first electromagnetic valve a, the outlet end of the first condenser 2-1 is connected with the inlet end of the first liquid storage device 3-1 through a pipeline, the outlet end of the first liquid storage device 3-1 is connected with the inlet end of the first sight glass 4-1 through a pipeline, the outlet end of the first sight glass 4-1 is connected with the inlet end of the first expansion valve 5-1 through a pipeline, the outlet end of the first expansion valve 5-1 is connected with the inlet end of the first evaporator 6-1 through a pipeline, the outlet end of the first evaporator 6-1 is connected with the inlet end of the first gas-liquid separator 7-1 through a pipeline with a second electromagnetic valve b, and the outlet end of the first gas-liquid separator 7-1 is connected with the return port end of the first compressor 1-1 through a pipeline with a second electromagnetic valve b, so that a refrigeration cycle of the first refrigeration system is formed.
The second refrigeration system comprises a second compressor 1-2, a second condenser 2-2 provided with a second condensing fan 9-2, a second liquid reservoir 3-2, a second sight glass 4-2, a second expansion valve 5-2, a second evaporator 6-2 provided with a second centrifugal fan 8-2, and a second gas-liquid separator 7-2. The outlet end of the second compressor 1-2 is connected with the inlet end of the second condenser 2-2 through a pipeline with a third electromagnetic valve c, the outlet end of the second condenser 2-2 is connected with the inlet end of the second liquid storage device 3-2 through a pipeline, the outlet end of the second liquid storage device 3-2 is connected with the inlet end of the second sight glass 4-2 through a pipeline, the outlet end of the second sight glass 4-2 is connected with the inlet end of the second expansion valve 5-2 through a pipeline, the outlet end of the second expansion valve 5-2 is connected with the inlet end of the second evaporator 6-2 through a pipeline, the outlet end of the second evaporator 6-2 is connected with the inlet end of the second gas-liquid separator 7-2 through a pipeline with a fourth electromagnetic valve d, and the outlet end of the second gas-liquid separator 7-2 is connected with the return port end of the second compressor 1-2 through a pipeline with a fourth electromagnetic valve d, so that a refrigeration cycle loop of the second refrigeration system is formed.
The outlet end of the backup compressor 1-3 is connected with two output pipelines, wherein one output pipeline is provided with a fifth electromagnetic valve e and is connected to a pipeline between a first electromagnetic valve a and a first condenser 2-1 at the outlet end of the first compressor 1-1 in the first refrigerating system in a bypass way, and the other output pipeline is provided with a seventh electromagnetic valve g and is connected to a pipeline between a third electromagnetic valve c and a second condenser 2-2 at the outlet end of the second compressor 1-2 in the second refrigerating system in a bypass way.
The return port end of the backup compressor 1-3 is connected with two input pipelines, one input pipeline is provided with a sixth electromagnetic valve f and is connected to a pipeline between a second electromagnetic valve b at the return port end of the first compressor 1-1 and the first gas-liquid separator 7-1 in the first refrigerating system in a bypass mode, the other input pipeline is provided with an eighth electromagnetic valve h and is connected to a pipeline between a fourth electromagnetic valve d at the return port end of the second compressor 1-2 and the second gas-liquid separator 7-2 in the second refrigerating system in a bypass mode.
The pipeline between the third electromagnetic valve c at the outlet end of the second compressor 1-2 and the second condenser 2-2 is also led out by-pass with a pipeline with a ninth electromagnetic valve i, and the pipeline by-pass is communicated with the pipeline between the first electromagnetic valve a at the outlet end of the first compressor 1-1 and the first condenser 2-1 in the first refrigerating system.
And a pipeline with a tenth electromagnetic valve j is led out by-pass from a pipeline between the second electromagnetic valve b at the return port end of the first compressor 1-1 and the first gas-liquid separator 7-1, and the pipeline by-pass is communicated to a pipeline between the fourth electromagnetic valve d at the return port end of the second compressor 1-2 and the second gas-liquid separator 7-2 in the second refrigerating system.
The controller is respectively and electrically connected with the first electromagnetic valve a, the second electromagnetic valve b, the third electromagnetic valve c, the fourth electromagnetic valve d, the fifth electromagnetic valve e, the sixth electromagnetic valve f, the seventh electromagnetic valve g, the eighth electromagnetic valve h, the ninth electromagnetic valve i and the tenth electromagnetic valve j.
When the first refrigerating system works normally, low-temperature and low-pressure gas is changed into high-temperature and high-pressure gas through the first compressor 1-1, then is condensed and radiated into medium-temperature and medium-pressure liquid through the first condenser 2-1 and the first condensing fan 9-1, is filtered through the first liquid storage device 3-1, the filter and the first sight glass 4-1, is throttled and depressurized into low-temperature and low-pressure liquid through the expansion valve 5-1, is changed into low-temperature and low-pressure gas through the first evaporator 6-1 and the first centrifugal fan 8-1 after being evaporated and radiated, and is returned to the compressor through the first gas-liquid separator 7-1 and then circularly works.
When the second refrigerating system works normally, low-temperature and low-pressure gas is changed into high-temperature and high-pressure gas through the second compressor 1-2, then is condensed and radiated into medium-temperature and medium-pressure liquid through the second condenser 2-2 and the second condensing fan 9-2, is filtered through the second liquid storage device 3-2, the filter and the second sight glass 4-2, is throttled and depressurized into low-temperature and low-pressure liquid through the expansion valve 5-2, is changed into low-temperature and low-pressure gas through the second evaporator 6-2 and the second centrifugal fan 8-2 after being evaporated and radiated, and is returned to the compressor through the gas-liquid separator 7-2 and then circularly works. If the compressors of the first refrigerating system or the second refrigerating system are in failure at the moment or the compressors of the first refrigerating system and the second refrigerating system are in failure at the same time, the environmental control equipment is only shut down to check the failure reason of the compressors, or the compressors are overhauled for a long time, or the compressors are replaced, and the environmental control equipment cannot be normally used in the maintenance period, so that the temperature and humidity requirements of the overall working condition cannot be guaranteed.
The environmental control equipment of the utility model connects the backup compressors with the first refrigeration system and the second refrigeration system in series through pipelines, and the exhaust pipe, the muffler and the associated pipelines of each compressor are provided with one-way conduction electromagnetic valves. When the electric control receives the fault signal of the compressor, the electric control can immediately switch to the backup compressor 1-3 to work under the condition of no stop or no influence on the refrigerating effect by controlling the opening and closing of the electromagnetic valve on the loop, so as to ensure the normal use of the first refrigerating system or the second refrigerating system, and simultaneously can switch to the backup compressor 1-3 to simultaneously derate the first refrigerating system and the second refrigerating system. And the three compressors are all of the same type, after the backup of the compressors is switched, the opening degree of the throttling device is not changed, and meanwhile, the refrigerating capacity and the consumed power of the environmental control equipment are not changed, so that the stability of the temperature and the humidity of the internal working condition is ensured. The utility model can realize the normal operation of the refrigeration system of the environmental control equipment through the backup of the compressors under the following four compressor fault conditions;
a first backup mode; backup compressor 1-3 backs up first compressor 1-1 of the first refrigeration system:
when the first compressor 1-1 of the first refrigeration system of the environmental control equipment breaks down in the working process, at the moment, the electrical control can automatically judge that the first compressor 1-1 is disconnected, the backup compressor 1-3 is directly started, meanwhile, the first electromagnetic valve a and the second electromagnetic valve b are closed, the fifth electromagnetic valve e and the sixth electromagnetic valve f are opened, other electromagnetic valves are closed, the rotating speed of the backup compressor 1-3 is finally controlled to be consistent with the rotating speed of the first compressor 1-1 before the fault, and at the moment, the environmental control equipment works by switching to the backup compressor 1-3 to ensure the normal use of the first refrigeration system.
A second backup mode; backup compressor 1-3 backs up second compressor 1-2 of the second refrigeration system:
when the second compressor 1-2 of the second refrigeration system of the environmental control equipment breaks down in the working process, at the moment, the electrical control can automatically judge that the second compressor 1-2 is disconnected, the backup compressor 1-3 is directly started, meanwhile, the electromagnetic valve c and the electromagnetic valve d are closed, the fifth electromagnetic valve g and the sixth electromagnetic valve h are opened, the other electromagnetic valves are closed, the rotating speed of the backup compressor 1-3 is finally controlled to be consistent with the rotating speed of the second compressor 1-2 before the fault, and at the moment, the environmental control equipment works by switching to the backup compressor 1-3 to ensure the normal use of the second refrigeration system.
A third backup mode; the second refrigeration system second compressor 1-2 backs up the first refrigeration system first compressor 1-1:
when the first compressor 1-1 of the first refrigeration system of the environmental control equipment breaks down in the working process, the backup compressor 3-1 also breaks down, at the moment, the electrical control can automatically judge that the first compressor 1-1 and the backup compressor 1-3 are disconnected, the second compressor 1-2 of the second refrigeration system is directly started, meanwhile, the ninth electromagnetic valve i and the tenth electromagnetic valve j are opened, other electromagnetic valves are closed, the rotating speed of the second compressor 1-2 of the second refrigeration system is finally controlled to be consistent with the rotating speed of the first compressor 1-1 before the fault, and at the moment, the environmental control equipment is switched to the second compressor 1-2 of the second refrigeration system to work so as to ensure the normal use of the first refrigeration system preferentially.
A fourth backup mode; the backup compressors 1-3 are simultaneously de-rated for ensuring the first refrigeration system and the second refrigeration system:
when the first compressor 1-1 of the first refrigeration system and the second compressor 1-2 of the second refrigeration system of the environmental control equipment are simultaneously in fault in the working process, at the moment, the electrical control can automatically judge that the first compressor 1-1 and the second compressor 1-2 are in circuit breaking, the backup compressor 1-3 is directly started, the electromagnetic valve a, b, c, d, i, j is closed, the electromagnetic valve e, f, g, h is opened, the rotating speed of the backup compressor 1-3 is finally controlled to be consistent with the rotating speed of the first compressor 1-1 or the second compressor 1-2 before the fault, and at the moment, the environmental control equipment is switched to the backup compressor 1-3 to work to simultaneously realize the derating use of the first refrigeration system and the second refrigeration system.
The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the examples described herein are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. The individual technical features described in the above-described embodiments may be combined in any suitable manner without contradiction, and such combination should also be regarded as the disclosure of the present disclosure as long as it does not deviate from the idea of the present utility model. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition.
The present utility model is not limited to the specific details of the above embodiments, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the protection scope of the present utility model without departing from the scope of the technical concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (4)
1. The double-system environmental control equipment capable of backing up by utilizing three compressors is characterized by comprising a first refrigerating system, a second refrigerating system and a backup compressor, wherein the first refrigerating system comprises a refrigerating circulation loop formed by connecting a first compressor, a first condenser and a first evaporator through pipelines, the second refrigerating system comprises a refrigerating circulation loop formed by connecting a second compressor, a second condenser and a second evaporator through pipelines, and solenoid valves are respectively arranged on return port end pipelines and outlet end pipelines of the first compressor and the second compressor; the outlet end of the backup compressor is connected with two paths of output pipelines, each path of output pipeline is respectively provided with an electromagnetic valve, and the two paths of output pipelines are respectively connected to the outlet end pipelines of the first compressor and the second compressor in a bypass way; the return port end of the backup compressor is connected with two return air pipelines, each return air pipeline is respectively provided with an electromagnetic valve, and the two return air pipelines are respectively connected to the return port end pipelines of the first compressor and the second compressor in a bypass mode.
2. The dual system environmental control apparatus of claim 1, wherein the first compressor return port is further connected to the second compressor return port via a line with a solenoid valve, and the first compressor outlet is further connected to the second compressor outlet via a short circuit with a solenoid valve.
3. The dual system environmental control apparatus of claim 1 wherein said solenoid valves are solenoid shut-off valves.
4. A dual system environmental control apparatus capable of backing up each other by using three compressors according to any of claims 1-3, further comprising a controller electrically connected to each of the solenoid valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826513.2U CN219868250U (en) | 2023-04-10 | 2023-04-10 | Dual-system environmental control equipment capable of mutually backing up by utilizing three compressors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826513.2U CN219868250U (en) | 2023-04-10 | 2023-04-10 | Dual-system environmental control equipment capable of mutually backing up by utilizing three compressors |
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| Publication Number | Publication Date |
|---|---|
| CN219868250U true CN219868250U (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320826513.2U Active CN219868250U (en) | 2023-04-10 | 2023-04-10 | Dual-system environmental control equipment capable of mutually backing up by utilizing three compressors |
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| Country | Link |
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| CN (1) | CN219868250U (en) |
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- 2023-04-10 CN CN202320826513.2U patent/CN219868250U/en active Active
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