CN208871936U - A kind of freon low-temperature cold-storage defrosting system - Google Patents
A kind of freon low-temperature cold-storage defrosting system Download PDFInfo
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- CN208871936U CN208871936U CN201821749529.3U CN201821749529U CN208871936U CN 208871936 U CN208871936 U CN 208871936U CN 201821749529 U CN201821749529 U CN 201821749529U CN 208871936 U CN208871936 U CN 208871936U
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- mouth
- way valve
- connect
- valve
- temperature cold
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Abstract
The utility model relates to a kind of freon low-temperature cold-storage defrosting systems, including the first two-position three-way valve, the second two-position three-way valve and check valve；The A mouth of first two-position three-way valve is connect with muffler, the B mouth of first two-position three-way valve is connect with high-pressure air pipe, the P mouth of first two-position three-way valve is connect with one end of evaporator, the A mouth of second two-position three-way valve is connect with high-pressure liquid tube, the B mouth of second two-position three-way valve is connect with the P of check valve mouth, the A mouth of the check valve is connect with the high-pressure liquid tube, and the P mouth of second two-position three-way valve is connect with the other end of the evaporator.The utility model can be realized the refrigerating state of refrigerating equipment and the switching control of hot fluoridation cream state by two two-position three-way valves, easy to operate, defrost efficiency is high.
Description
Technical field
The utility model relates to technique of refrigeration fields, and in particular to a kind of freon low-temperature cold-storage defrosting system.
Background technique
Freon low-temperature cold-storage is the freezer for configuring the refrigerating equipment to freeze using freon as coolant,
Refrigerating equipment needs to carry out defrosting operation to evaporator after running for a period of time, wherein the most with the application of hot fluoridation cream technology
It is universal, however, the hot fluoridation cream equipment pipeline applied in existing refrigerating equipment is complicated, needed when carrying out hot fluoridation cream operation
Multiple valves are switched, there are complicated for operation, the low problems of defrost efficiency.
Utility model content
In view of the above technical problems, the utility model provides a kind of freon low-temperature cold-storage defrosting system.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of freon low-temperature cold-storage defrost system
System, including the first two-position three-way valve, the second two-position three-way valve and check valve；
The A mouth of first two-position three-way valve is connect with muffler, the B mouth and high-pressure air pipe of first two-position three-way valve
Connection, the P mouth of first two-position three-way valve are connect with one end of evaporator, the A mouth and high pressure of second two-position three-way valve
Liquid pipe connection, the B mouth of second two-position three-way valve are connect with the P of check valve mouth, the A mouth and the height of the check valve
The connection of hydraulic fluid pipe, the P mouth of second two-position three-way valve are connect with the other end of the evaporator.
The beneficial effects of the utility model are: by two two-position three-way valves can be realized refrigerating equipment refrigerating state and
The switching control of hot fluoridation cream state, it is easy to operate, defrost efficiency is high.
Based on the above technical solution, the utility model can also do following improvement.
Further, the freon low-temperature cold-storage defrosting system further includes controller, first two-position three-way valve and
Second two-position three-way valve check valve is solenoid valve, and the controller controls the switch of each solenoid valve.
Further, the freon low-temperature cold-storage defrosting system further includes the inside or two for being installed on the evaporator
End, the temperature sensor being connect with the controller.
Further, the freon low-temperature cold-storage defrosting system further includes outlet and the institute for being installed on the evaporator
State the pressure sensor of controller connection.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of freon low-temperature cold-storage defrosting system provided by the embodiment of the utility model.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
Fig. 1 is a kind of structural schematic diagram of freon low-temperature cold-storage defrosting system provided by the embodiment of the utility model,
As shown in Figure 1, the system includes the first two-position three-way valve 1, the second two-position three-way valve 2 and check valve 3；
The A mouth of first two-position three-way valve 1 is connect with muffler 4, the B mouth and high pressure of first two-position three-way valve 1
Tracheae 5 connects, and the P mouth of first two-position three-way valve 1 is connect with one end of evaporator 7, the A of second two-position three-way valve 2
Mouth is connect with high-pressure liquid tube 6, and the B mouth of second two-position three-way valve 2 is connect with the P mouth of the check valve 3, the check valve 3
A mouth connect with the high-pressure liquid tube 6, the P mouth of second two-position three-way valve 2 is connect with the other end of the evaporator 7.
The operation logic of the system is as follows:
As shown in Figure 1, the freon low-temperature cold-storage defrosting system is when carrying out defrost, the P mouth of the first two-position three-way valve 1
It is connected with A mouthfuls, the P mouth of the second two-position three-way valve 2 and B mouthfuls of conductings, the freon steam warp that compressor is exported by high-pressure air pipe 5
It crosses the A mouth of the first two-position three-way valve 1 and P mouthful enters in evaporator 7 and discharge thermal energy, for 7 defrost of evaporator, using the second two
Enter high-pressure liquid tube 6 after the P mouth of triple valve 2 and B mouthfuls and check valve 3, finally returns that compressor.
The freon low-temperature cold-storage defrosting system is when being freezed, the P mouth of the first two-position three-way valve 1 and B mouthfuls of conductings,
The P mouth of second two-position three-way valve 2 and A mouthful conductings, the freon liquid that compressor is exported by high-pressure liquid tube 6 pass through the second two
The A mouth of triple valve 2 enters in evaporator 7 with P mouthfuls absorbs thermal energy, refrigerating function is completed, using the P of the first two-position three-way valve 1
Mouth enters muffler 4 with B mouthfuls, finally returns that compressor.
A kind of freon low-temperature cold-storage defrosting system provided by the embodiment of the utility model, passes through two two-position three-way valves
It can be realized the refrigerating state of refrigerating equipment and the switching control of hot fluoridation cream state, it is easy to operate, defrost efficiency is high.
Optionally, in this embodiment, the freon low-temperature cold-storage defrosting system further includes controller, and described first
Two-position three-way valve 1 and 2 check valve 3 of the second two-position three-way valve are solenoid valve, and the controller controls the switch of each solenoid valve.
Specifically, the time of defrosting operation is carried out by setting in the controller, to enable the controller to automatically control
The switch of each solenoid valve further improves defrost efficiency without manual operation.
No matter setting for the time can set the time of each defrost using a timer is arranged in the controller
White thickness on evaporator 7, all using the fixed defrost time, if when front evaporator 7 does not complete complete defrost, wait into
Row defrost next time finishes until completing defrost, is finally completed the whole defrost of evaporator 7.
Optionally, in this embodiment, the freon low-temperature cold-storage defrosting system further includes being installed on the evaporation
The inside or both ends of device 7, the temperature sensor being connect with the controller.
Specifically, controller receives the real-time temperature values of temperature sensor monitoring, and by the temperature value received and setting value
It is compared, judges whether evaporator 7 needs defrost, when needing defrost, controller controls the P mouth of the first two-position three-way valve 1
It is connected with A mouthfuls, the P mouth of the second two-position three-way valve 2 and B mouthfuls of conductings；When needing to freeze, the P mouth of the first two-position three-way valve 1 and B mouthfuls
Conducting, the P mouth of the second two-position three-way valve 2 and A mouthfuls of conductings, to realize defrost, the intelligence of refrigerating state automatically switches.
Optionally, in this embodiment, the freon low-temperature cold-storage defrosting system further includes being installed on the evaporation
The outlet of device 7, the pressure sensor being connect with the controller.
Specifically, pressure sensor works as pressure sensor monitoring into after defrost state for auxiliary monitoring defrost process
To pressure value get higher when, indicate frost tail off, defrost process is normal.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (4)
1. a kind of freon low-temperature cold-storage defrosting system, which is characterized in that including the first two-position three-way valve, the second two-bit triplet
Valve and check valve；
The A mouth of first two-position three-way valve is connect with muffler, and the B mouth and high-pressure air pipe of first two-position three-way valve connect
It connects, the P mouth of first two-position three-way valve is connect with one end of evaporator, the A mouth and high pressure liquid of second two-position three-way valve
Pipe connection, the B mouth of second two-position three-way valve are connect with the P of check valve mouth, the A mouth of the check valve and the high pressure
Liquid pipe connection, the P mouth of second two-position three-way valve are connect with the other end of the evaporator.
2. freon low-temperature cold-storage defrosting system according to claim 1, which is characterized in that it further include controller, institute
Stating the first two-position three-way valve and the second two-position three-way valve check valve is solenoid valve, and the controller controls opening for each solenoid valve
It closes.
3. freon low-temperature cold-storage defrosting system according to claim 2, which is characterized in that further include be installed on it is described
The inside or both ends of evaporator, the temperature sensor being connect with the controller.
4. freon low-temperature cold-storage defrosting system according to claim 2 or 3, which is characterized in that further include being installed on
The outlet of the evaporator, the pressure sensor being connect with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749529.3U CN208871936U (en) | 2018-10-26 | 2018-10-26 | A kind of freon low-temperature cold-storage defrosting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821749529.3U CN208871936U (en) | 2018-10-26 | 2018-10-26 | A kind of freon low-temperature cold-storage defrosting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208871936U true CN208871936U (en) | 2019-05-17 |
Family
ID=66470975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821749529.3U Expired - Fee Related CN208871936U (en) | 2018-10-26 | 2018-10-26 | A kind of freon low-temperature cold-storage defrosting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208871936U (en) |
-
2018
- 2018-10-26 CN CN201821749529.3U patent/CN208871936U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190517 Termination date: 20191026 |