CN111520958A - Refrigerating device and refrigeration house - Google Patents
Refrigerating device and refrigeration house Download PDFInfo
- Publication number
- CN111520958A CN111520958A CN202010398342.9A CN202010398342A CN111520958A CN 111520958 A CN111520958 A CN 111520958A CN 202010398342 A CN202010398342 A CN 202010398342A CN 111520958 A CN111520958 A CN 111520958A
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- Prior art keywords
- heat exchanger
- indoor heat
- pipeline
- valve
- branch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims description 33
- 238000010257 thawing Methods 0.000 claims abstract description 36
- 238000007664 blowing Methods 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 5
- 238000009920 food preservation Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D13/00—Stationary devices, e.g. cold-rooms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
- F25D21/008—Defroster control by timer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/023—Air curtain closures
Abstract
The invention discloses a refrigerating device and a refrigerator, which comprise a heat exchange system for refrigerating a compartment, an air outlet assembly which is arranged close to the compartment door and forms an air curtain door when blowing air, a second indoor heat exchanger which is arranged on an air outlet flow passage of the air outlet assembly and is communicated with a heat exchange system pipeline through a branch pipeline, a valve assembly for disconnecting the heat exchange system pipeline and the branch pipeline, and a controller for controlling the valve assembly to disconnect the pipeline to be communicated with the second indoor heat exchanger for refrigerating and starting the air outlet assembly according to an opening signal of the compartment door. According to the invention, the second indoor heat exchanger with the axial flow fan is arranged above the cold storage door, so that heat exchange between the outside and the compartment is reduced when the cold storage door is opened, outside air entering the compartment is reduced, and the phenomenon that the food preservation capacity of the cold storage is reduced due to the fact that the humidity in the cold storage is increased after the air enters the compartment is avoided. Meanwhile, the second indoor heat exchange air device can be started to ensure the supply of indoor cold energy when the first indoor heat exchanger is defrosted, so that overlarge temperature fluctuation during defrosting is prevented.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration device and a refrigeration house.
Background
With the great support of the country on the aspect of freezing and refrigeration and the development of science and technology, the application of freezing and refrigeration is more and more diversified, the appearance of various new industries drives the demand on freezing and refrigeration products, such as boxhorses, daily excellent freshness and the like, small-sized freezing warehouses are needed, and the warehouses are frequently opened and closed every day, the heat load is increased, the humidity is relatively high, the frosting is relatively serious, and the temperature in the refrigeration warehouse cannot be maintained within the temperature range suitable for food preservation.
Disclosure of Invention
The invention provides a refrigerating device and a refrigerator, aiming at solving the technical problem that wet air cannot be blocked after a refrigerator door is opened in the prior art.
The technical scheme adopted by the invention is as follows:
the invention provides a refrigerating device, which comprises a heat exchange system for refrigerating a compartment, and is characterized by further comprising an air outlet assembly, a second indoor heat exchanger, a valve assembly and a controller, wherein the air outlet assembly is arranged close to the compartment door and forms an air curtain door when air is blown, the second indoor heat exchanger is arranged on an air outlet flow channel of the air outlet assembly and is communicated with a heat exchange system pipeline through a branch pipeline, the valve assembly is used for disconnecting the heat exchange system pipeline and the branch pipeline, and the controller is used for controlling the valve assembly to disconnect the pipeline to be communicated with the second indoor heat exchanger for refrigerating and opening the air outlet assembly according to an opening signal.
The heat exchange system comprises: the heat exchanger comprises a compressor, a four-way valve, an outdoor heat exchanger and a first indoor heat exchanger which are communicated through pipelines.
The branch pipeline includes: the first branch of the pipeline between the pipeline on one side of the second indoor heat exchanger and the four-way valve of the outdoor heat exchanger, the second branch of the pipeline between the pipeline on the other side of the second indoor heat exchanger and the four-way valve of the outdoor heat exchanger, the third branch of the pipeline between the pipeline on one side of the second indoor heat exchanger and the four-way valve of the first indoor heat exchanger, and the fourth branch of the pipeline between the pipeline on the other side of the second indoor heat exchanger and the four-way valve of the first indoor heat exchanger.
The valve assembly includes: the first electromagnetic valve is arranged on the first branch, the second electromagnetic valve is arranged on the second branch, the third electromagnetic valve is arranged on the third branch, the fourth electromagnetic valve is arranged on the fourth branch, the fifth electromagnetic valve is arranged on a pipeline between the outdoor heat exchanger and the four-way valve and is positioned between the first branch and the second branch connection point, and the sixth electromagnetic valve is arranged on a pipeline between the first indoor heat exchanger and the four-way valve and is positioned between the third branch and the fourth branch connection point.
When the refrigerating device runs in a refrigerating mode, the controller controls the valve assembly to only open the fifth electromagnetic valve and the sixth electromagnetic valve.
When the controller receives an opening signal of the compartment door, the controller controls the valve assembly to open only the fifth solenoid valve, the third solenoid valve and the fourth solenoid valve.
When the first indoor heat exchanger reaches a defrosting condition, the refrigerating device operates a first indoor heat exchanger defrosting mode, the controller shields an opening signal of a compartment door, the four-way valve is controlled to change direction, the air outlet assembly is opened, and the valve assembly is controlled to only open the first electromagnetic valve, the second electromagnetic valve and the sixth electromagnetic valve.
When the second indoor heat exchanger reaches a defrosting condition, the refrigerating device operates a defrosting mode of the second indoor heat exchanger, the controller shields an opening signal of the compartment door, and the valve assembly is controlled to only open the first electromagnetic valve, the second electromagnetic valve and the sixth electromagnetic valve.
When the first indoor heat exchanger and the second indoor heat exchanger both reach defrosting conditions, the first indoor heat exchanger is operated in a defrosting mode after the first indoor heat exchanger and the second indoor heat exchanger are shut down for a preset time, and the second indoor heat exchanger is operated in a defrosting mode after a preset time is separated.
The invention also provides a refrigeration house comprising the refrigeration device.
Compared with the prior art, the second indoor heat exchanger with the axial flow fan is arranged above the cold storage door, so that heat exchange between the outside and the compartment is reduced when the cold storage door is opened, outside air entering the compartment is reduced, and the phenomenon that the humidity in the cold storage is increased and the temperature is too high after the air enters the compartment, so that the food preservation capacity in the cold storage is reduced. Meanwhile, the second indoor heat exchange air device can be started to ensure the supply of indoor cold energy when the first indoor heat exchanger defrosts, so that the overlarge indoor temperature fluctuation during defrosting is prevented.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram in an embodiment of the present invention;
fig. 2 is a flowchart in an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The principles and construction of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the present invention provides a refrigeration apparatus, including a heat exchange system for refrigerating a compartment, where the heat exchange system is a conventional refrigeration system, and specifically includes: the four-way valve can be reversed through the compressor 11, the four-way valve 12, the outdoor heat exchanger 13, the drying filter 14, the throttle valve 15, the first indoor heat exchanger 16 and the gas-liquid separator 17 which are communicated through pipelines, so that the first indoor heat exchanger 16 can perform refrigeration and heating defrosting. The connection mode of the pipeline is a common connection mode in the prior art, and is not described in detail.
And the refrigerating apparatus of the present invention further comprises: air-out subassembly, second indoor heat exchanger 18, the branch road pipeline, valve member and controller, the air-out subassembly specifically can be the axial-flow fan, set up room door top in the room, its air-out direction is parallel with room door, can form the air curtain door that shelters from room door during blowing, second indoor heat exchanger 18 sets up on the air-out runner of air-out subassembly, second indoor heat exchanger 18 passes through branch road pipeline intercommunication heat transfer system's pipeline, the valve member sets up on heat transfer system's pipeline and branch road pipeline, can send opening signal to the controller when room door is opened, specifically can set up opening signal is sent in opening that the position inductor comes the induction door, the controller is based on opening signal control valve member and is opened pipeline intercommunication second indoor heat exchanger 18 and refrigerate, and open the air-out subassembly and form the air curtain door. When the door of the compartment is opened, heat exchange between the outside and the compartment is reduced, and outside air is reduced to enter the compartment, so that the problem that the food preservation capacity in the refrigeration house is reduced due to overhigh humidity and temperature when the air enters the compartment and then the refrigeration house is heated is avoided.
In a particular embodiment, the bypass duct comprises: a first branch 21, a second branch 22, a third branch 23 and a fourth branch 24. One end of the first branch 21 is connected to a pipe on one side of the second indoor heat exchanger 18, and the other end is connected to a pipe between the outdoor heat exchanger 13 and the four-way valve 12. One end of the second branch 22 is connected to the pipe on the other side of the second indoor heat exchanger 18, and the other end is connected to the pipe between the outdoor heat exchanger 13 and the four-way valve 12. One end of the third branch 23 is connected to a pipe on the second indoor heat exchanger 18 side, and the other end is connected to a pipe between the first indoor heat exchanger 16 and the four-way valve 12. One end of the fourth branch 24 is connected to the pipe on the other side of the second indoor heat exchanger 18, and the other end is connected to the pipe between the first indoor heat exchanger 16 and the four-way valve 12.
The valve assembly includes: a first solenoid valve 31 provided on the first branch 21, a second solenoid valve 32 provided on the second branch 22, a third solenoid valve 33 provided on the third branch 23, a fourth solenoid valve 34 provided on the fourth branch 24, a fifth solenoid valve 35 provided on the pipe between the outdoor heat exchanger 13 and the four-way valve 12 and located between the connection points of the first branch 21 and the second branch 22, and a sixth solenoid valve 36 provided on the pipe between the first indoor heat exchanger 16 and the four-way valve 12 and located between the connection points of the third branch 23 and the fourth branch 24.
As shown in fig. 2, the present invention includes a plurality of operation modes, specifically, a cooling mode and a defrosting mode, wherein the defrosting mode further specifically includes a first indoor heat exchanger defrosting mode and a second indoor heat exchanger defrosting mode.
The specific control of the operation refrigeration mode is as follows: the controller controls the four-way valve to maintain the reversing of the refrigeration state, and controls the valve assembly to only open the fifth electromagnetic valve 35 and the sixth electromagnetic valve 36, so that the heat exchange system normally runs in a normal refrigeration mode. When the controller receives an opening signal of the compartment door, the controller opens the air outlet assembly, and controls the valve assembly to open only the fifth electromagnetic valve 35, the third electromagnetic valve 33 and the fourth electromagnetic valve 34, so that the refrigerant flows out of the compressor 11, then flows through the four-way valve 12 to the outdoor heat exchanger 13, the drying filter 14, the throttle valve 15 and the first indoor heat exchanger 16, then flows through the second indoor heat exchanger 18, and then flows to the gas-liquid separator 17 to flow back to the compressor 11. Make second indoor heat exchanger 18 become the evaporimeter operation refrigeration mode, send out the cold volume of second indoor heat exchanger 18 simultaneously through the air-out subassembly and form the opening after air curtain door cover room door is opened to reduce the outside air and get into the room, avoid making the freezer after the air admission room humidity grow high temperature.
The specific control of the defrosting mode of the first indoor heat exchanger is as follows: when the first indoor heat exchanger reaches the defrosting temperature, namely the defrosting condition is met, the defrosting signal of the second indoor heat exchanger is shielded to avoid signal error, the controller controls the four-way valve to reverse, the air outlet assembly is opened, and the valve assembly is controlled to only open the first electromagnetic valve 31, the second electromagnetic valve 32 and the sixth electromagnetic valve 36, so that the refrigerant flows out of the compressor, then flows to the first indoor heat exchanger 16, the throttle valve 15, the drying filter 14 and the outdoor heat exchanger 13 through the four-way valve 12, and then flows to the gas-liquid separator 17 to flow back to the compressor 11 after passing through the second indoor heat exchanger 18. Make first indoor heat exchanger 16 become the condenser and change the frost, second indoor heat exchanger 18 becomes the evaporimeter operation refrigeration mode, sends out second indoor heat exchanger 18's cold volume through the air-out subassembly simultaneously, guarantees the supply of indoor cold volume when first indoor heat exchanger 16 changes the frost to indoor temperature fluctuation is too big when preventing to change the frost.
The specific control of the defrosting mode of the second indoor heat exchanger is as follows: when the second indoor heat exchanger 18 reaches the defrosting temperature, that is, the defrosting condition is met, the four-way valve 12 keeps the refrigeration reversing state, the controller shields the opening signal of the compartment door, the air outlet assembly is controlled to be closed, the valve assembly is controlled to only open the first electromagnetic valve 31, the second electromagnetic valve 32 and the sixth electromagnetic valve 36, and the heat exchange system runs in the refrigeration mode at this time. After flowing out from the compressor 11, the refrigerant flows to the second indoor heat exchanger 18 through the four-way valve 12, then flows to the gas-liquid separator 17 to flow back to the compressor 11 after passing through the outdoor heat exchanger 13, the drying filter 14, the throttle valve 15 and the first indoor heat exchanger 16, and then the second indoor heat exchanger 18 becomes a condenser to defrost.
When the first indoor heat exchanger and the second indoor heat exchanger meet the defrosting mode at the same time, namely the first indoor heat exchanger and the second indoor heat exchanger 18 both meet the defrosting condition, the defrosting signal of the second indoor heat exchanger is shielded, the preset time for closing the heat exchange system is specifically 1 minute, the air conditioner is restarted, the first indoor heat exchanger defrosting mode is operated, the air conditioner exits the first indoor heat exchanger defrosting mode after the first indoor heat exchanger defrosting mode is finished, the air conditioner is stopped again for the preset time, the second indoor heat exchanger 18 defrosting mode is operated, the second indoor heat exchanger defrosting mode is operated for multiple preset times, and the indoor temperature is kept relatively constant.
The invention also provides a refrigeration house comprising the refrigeration device. The compartment door is the cold storage door.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a refrigerating plant, includes the heat transfer system who carries out the refrigeration to the room, its characterized in that still includes the air-out subassembly that forms the air curtain door when being close to the setting of room door and blowing, sets up the second indoor heat exchanger through branch road pipeline intercommunication heat transfer system pipeline on the air-out runner of air-out subassembly, cuts off the valve member of heat transfer system pipeline and branch road pipeline, opens the controller that signal control valve member cut-off pipeline intercommunication second indoor heat exchanger refrigerates and open the air-out subassembly according to the opening of room door.
2. The refrigeration unit of claim 1 wherein said heat exchange system comprises: the heat exchanger comprises a compressor, a four-way valve, an outdoor heat exchanger and a first indoor heat exchanger which are communicated through pipelines.
3. The refrigeration unit of claim 2 wherein said bypass conduit comprises: the first branch of the pipeline between the pipeline on one side of the second indoor heat exchanger and the four-way valve of the outdoor heat exchanger, the second branch of the pipeline between the pipeline on the other side of the second indoor heat exchanger and the four-way valve of the outdoor heat exchanger, the third branch of the pipeline between the pipeline on one side of the second indoor heat exchanger and the four-way valve of the first indoor heat exchanger, and the fourth branch of the pipeline between the pipeline on the other side of the second indoor heat exchanger and the four-way valve of the first indoor heat exchanger.
4. A refrigeration unit as recited in claim 3 wherein said valve assembly comprises: the first electromagnetic valve is arranged on the first branch, the second electromagnetic valve is arranged on the second branch, the third electromagnetic valve is arranged on the third branch, the fourth electromagnetic valve is arranged on the fourth branch, the fifth electromagnetic valve is arranged on a pipeline between the outdoor heat exchanger and the four-way valve and is positioned between the first branch and the second branch connection point, and the sixth electromagnetic valve is arranged on a pipeline between the first indoor heat exchanger and the four-way valve and is positioned between the third branch and the fourth branch connection point.
5. The refrigeration apparatus as set forth in claim 4, wherein said controller controls the valve assembly to open only the fifth solenoid valve and the sixth solenoid valve when said refrigeration apparatus operates in the refrigeration mode.
6. The cooling apparatus as claimed in claim 5, wherein the controller controls the valve assembly to open only the fifth solenoid valve, the third solenoid valve and the fourth solenoid valve when the controller receives an opening signal of the compartment door.
7. The refrigerating device as recited in claim 4 wherein when said first indoor heat exchanger reaches a defrosting condition, said refrigerating device operates a first indoor heat exchanger defrosting mode, controls the four-way valve to reverse, opens the air outlet assembly, and controls the valve assembly to open only the first solenoid valve, the second solenoid valve, and the sixth solenoid valve.
8. The cooling apparatus as claimed in claim 7, wherein the cooling apparatus operates a second indoor heat exchanger defrosting mode when the second indoor heat exchanger reaches a defrosting condition, the controller shields an opening signal of the compartment door, and controls the valve assembly to open only the first solenoid valve, the second solenoid valve, and the sixth solenoid valve.
9. The cooling apparatus as claimed in claim 8, wherein when both the first indoor heat exchanger and the second indoor heat exchanger reach the defrosting condition, the first indoor heat exchanger is operated in the defrosting mode after being shut down for a preset time, and the second indoor heat exchanger is operated in the defrosting mode after being spaced apart for a preset time.
10. A cold storage, characterized by comprising a refrigeration device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398342.9A CN111520958A (en) | 2020-05-12 | 2020-05-12 | Refrigerating device and refrigeration house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010398342.9A CN111520958A (en) | 2020-05-12 | 2020-05-12 | Refrigerating device and refrigeration house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111520958A true CN111520958A (en) | 2020-08-11 |
Family
ID=71907764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010398342.9A Pending CN111520958A (en) | 2020-05-12 | 2020-05-12 | Refrigerating device and refrigeration house |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111520958A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781269A (en) * | 2021-03-04 | 2021-05-11 | 成都绿建工程技术有限公司 | Air source heat pump unit with supercooling alternative defrosting function and operation control method thereof |
| CN113251728A (en) * | 2021-05-25 | 2021-08-13 | 珠海格力电器股份有限公司 | Refrigerating unit control method and device and refrigerating unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340467A (en) * | 2001-05-16 | 2002-11-27 | Mitsubishi Heavy Ind Ltd | Refrigeration unit |
| CN202328993U (en) * | 2011-11-21 | 2012-07-11 | 山东大地肉牛清真食品股份有限公司 | Automatic air curtain device for refrigeration house |
| CN106820789A (en) * | 2017-03-24 | 2017-06-13 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case of double evaporators |
| CN106907877A (en) * | 2017-03-10 | 2017-06-30 | 南京理工大学 | A kind of double evaporators replace defrosting net for air-source heat pump units and its Defrost method |
| CN206875795U (en) * | 2017-07-03 | 2018-01-12 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case with evaporation humidification air channel |
| CN108120217A (en) * | 2018-01-25 | 2018-06-05 | 廊坊康平空调制造有限公司 | A kind of more air-flow air curtains of freezer gate antifogging type |
-
2020
- 2020-05-12 CN CN202010398342.9A patent/CN111520958A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002340467A (en) * | 2001-05-16 | 2002-11-27 | Mitsubishi Heavy Ind Ltd | Refrigeration unit |
| CN202328993U (en) * | 2011-11-21 | 2012-07-11 | 山东大地肉牛清真食品股份有限公司 | Automatic air curtain device for refrigeration house |
| CN106907877A (en) * | 2017-03-10 | 2017-06-30 | 南京理工大学 | A kind of double evaporators replace defrosting net for air-source heat pump units and its Defrost method |
| CN106820789A (en) * | 2017-03-24 | 2017-06-13 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case of double evaporators |
| CN206875795U (en) * | 2017-07-03 | 2018-01-12 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case with evaporation humidification air channel |
| CN108120217A (en) * | 2018-01-25 | 2018-06-05 | 廊坊康平空调制造有限公司 | A kind of more air-flow air curtains of freezer gate antifogging type |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112781269A (en) * | 2021-03-04 | 2021-05-11 | 成都绿建工程技术有限公司 | Air source heat pump unit with supercooling alternative defrosting function and operation control method thereof |
| CN113251728A (en) * | 2021-05-25 | 2021-08-13 | 珠海格力电器股份有限公司 | Refrigerating unit control method and device and refrigerating unit |
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Application publication date: 20200811 |