CN212274332U - Defrosting device for supercooling refrigerant of main path of refrigeration cycle - Google Patents
Defrosting device for supercooling refrigerant of main path of refrigeration cycle Download PDFInfo
- Publication number
- CN212274332U CN212274332U CN202020912066.9U CN202020912066U CN212274332U CN 212274332 U CN212274332 U CN 212274332U CN 202020912066 U CN202020912066 U CN 202020912066U CN 212274332 U CN212274332 U CN 212274332U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- defrosting
- refrigerant
- main
- pipe
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Defrosting Systems (AREA)
Abstract
The utility model discloses a defrosting device for supercooling a refrigerant of a main refrigeration cycle, which comprises a defrosting pipeline, a main pipeline cooler, a defrosting liquid outlet pipeline and a loop pipeline; the defrosting pipeline is connected to the main refrigerating pipeline in a bypassing manner; the head end of the defrosting liquid outlet pipeline is connected with the outlet of the evaporator to be defrosted, and the tail end of the defrosting liquid outlet pipeline is connected with the inlet of the main pipeline cooler; the head end of the loop pipeline is connected with the outlet of the main pipeline cooler, and the tail end of the loop pipeline is connected with the inlet of the compressor; an adjusting bypass pipe is connected between the defrosting liquid outlet pipeline and the loop pipeline. The utility model discloses utilize the refrigerant after the defrosting to carry out the subcooling to the refrigerant in the refrigeration trunk line to with the refrigerant of low enthalpy before the subcooling let in the refrigerant of the high enthalpy after the subcooling in, with compressor return air pressure control in reasonable scope, with return air superheat degree control near the low value of reasonable scope simultaneously, twice improvement refrigerating system's refrigerating output improves refrigeration efficiency.
Description
Technical Field
The utility model relates to a refrigerating system's defrosting device, concretely relates to defrosting device to the subcooling of refrigeration cycle main road refrigerant.
Background
In the operation process of the refrigeration system, when the evaporation temperature is lower than 0 ℃, the phenomenon of frosting can occur on the evaporator, so that the heat exchange efficiency and the refrigeration efficiency are reduced, and defrosting treatment is required.
The existing defrosting mode mainly comprises refrigerant defrosting and non-refrigerant defrosting, wherein a refrigerant defrosting technology is an energy-saving technology, and superheated gas refrigerant is generally adopted as a defrosting medium to defrost an evaporator in the prior art; of course, liquid refrigerant is also present as the defrosting medium. In a common defrosting process, when a defrosting medium passes through an evaporator, heat is released to defrost, and then the defrosting medium is led to the evaporator which is refrigerating to be evaporated and refrigerated. For example, in a continuous defrosting system, the defrosted refrigerant is sent to an evaporator (non-defrosted evaporator) that is cooling to absorb heat by evaporation; in the discontinuous defrosting system, the liquid can be stored temporarily, and the evaporator can be randomly selected to realize evaporation, and can be the evaporator which just completes the defrosting process.
The above process has the following disadvantages:
1. the defrosted refrigerant enters a refrigerating evaporator to cool a cooling object, and the evaporating temperature is required to be lower than the temperature of a cooled object, so that the refrigerating capacity of the defrosted refrigerant is not fully utilized, and the refrigerating capacity is small.
2. The defrosted refrigerant is throttled by the expansion valve and then evaporates and absorbs heat, and is almost completely evaporated and converted into gas when the refrigerant moves to the rear section of the evaporation channel, so that the liquid refrigerant can be effectively prevented from entering the compressor to protect the compressor, but the gas refrigerant in the rear section of the evaporation channel can not evaporate and absorb heat any more, so that the waste of the evaporation area of the rear section of the evaporation channel can be caused, the evaporation temperature of the refrigeration system is lower than that when the refrigerant is not defrosted during defrosting, the return air pressure is lower, the superheat degree is higher, and the refrigerating capacity is reduced.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcome the above-mentioned existing problems, and provides a defrosting device for supercooling a refrigerant in a main path of a refrigeration cycle, wherein the defrosting device utilizes the refrigerant after defrosting to supercool the refrigerant in a main refrigeration pipeline, so as to improve the heat absorption capacity of the refrigerant in the main refrigeration pipeline and the refrigerating capacity of a refrigeration system; after the supercooling, the low enthalpy refrigerant before the supercooling is introduced into the high enthalpy refrigerant after the supercooling, the return air pressure of the compressor is adjusted to a reasonable range, the return air superheat degree is reduced, the return air superheat degree is controlled to be close to the low value of the reasonable range, and the refrigerating capacity of the refrigerating system is improved again.
The purpose of the utility model is realized through the following technical scheme:
a defrosting device for supercooling a refrigerant of a main refrigeration cycle path is integrated in a refrigeration system and comprises a defrosting pipeline, a main pipeline cooler, a defrosting liquid outlet pipeline and a loop pipeline, wherein the defrosting pipeline is used for shunting the refrigerant of a main refrigeration pipeline to an evaporator to be defrosted;
the defrosting pipeline is connected to the main refrigerating pipeline in a bypassing manner; the head end of the defrosting liquid outlet pipeline is connected with the outlet of the evaporator to be defrosted, and the tail end of the defrosting liquid outlet pipeline is connected with the inlet of the main pipeline cooler;
the head end of the loop pipeline is connected with the outlet of the main pipeline cooler, and the tail end of the loop pipeline is connected with the inlet of the compressor;
an adjusting bypass pipe is connected between the defrosting liquid outlet pipeline and the loop pipeline.
The defrosting device for supercooling the refrigerant of the main path of the refrigeration cycle has the working principle that:
when the defrosting device works, the refrigerant of the refrigeration main pipeline is shunted to the evaporator to be defrosted, and the shunted refrigerant is used as a defrosting medium to release heat to melt frosting on the evaporator. And then the defrosted refrigerant is conveyed to a main pipe cooler through a defrosting liquid outlet pipe to supercool the refrigerant in the refrigeration main pipe.
Wherein, because the temperature of the liquid refrigerant of the main cooling pipeline is higher than the temperature of the cooling object (cooling object) of the refrigeration system, and the evaporation temperature of the refrigerant must be lower than the temperature of the cooling object, so in the utility model discloses in, regard the liquid refrigerant of the main cooling pipeline as the cooling object of the refrigerant after defrosting, the evaporation temperature of supercooling can be higher than the evaporation temperature of the evaporator that is refrigerating so to the liquid refrigerant of the main cooling pipeline (namely former evaporation pressure is greater than the latter evaporation pressure). According to the refrigeration and evaporation law (the pressure-enthalpy diagram of the refrigeration system), the lower the evaporation temperature is, the smaller the refrigeration capacity of the refrigeration system is, the lower the operation efficiency is, and the larger the energy consumption is; so the utility model discloses in, carry out the subcooling to the refrigerant of refrigeration trunk line in trunk line cooler (evaporating temperature is higher) with the refrigerant after defrosting, obtain the refrigerating output that the refrigerating output is greater than the refrigerant after defrosting and carries to carrying out the evaporation to the evaporimeter that is refrigerating (evaporating temperature is lower), utilize the refrigerant after defrosting more fully, obtain more refrigerating outputs.
And finally, the refrigerant which finishes the supercooling work is conveyed back to the compressor, wherein before being conveyed to the compressor, the refrigerant which is positioned after defrosting and before supercooling is introduced into the refrigerant which finishes the supercooling work through an adjusting bypass pipe, the return air pressure of the compressor is adjusted to a reasonable range, the return air superheat degree of the refrigerant is reduced, the return air superheat degree is controlled to be close to a low value of the reasonable range, and the refrigerating capacity of the refrigerating system is improved.
The utility model discloses a preferred scheme, wherein, still including being arranged in for the liquid refrigerant after the condenser condensation to evaporate endothermic evaporation plant and be arranged in carrying the liquid refrigerant in the refrigeration trunk line to the reposition of redundant personnel pipeline in the evaporation plant, the exit at evaporation plant is connected to the head end of defrosting pipeline, and end-to-end connection is in the import department of the evaporimeter of treating the defrosting.
The utility model discloses a preferred scheme, wherein, evaporation plant includes primary expansion valve and an evaporation heat exchanger, primary expansion valve sets up on the reposition of redundant personnel pipeline.
Preferably, the primary evaporation heat exchanger is arranged outside a main refrigeration pipeline for conveying liquid refrigerant and used for supercooling the refrigerant in the main refrigeration pipeline and improving the refrigeration capacity of the refrigerant.
The utility model discloses a preferred scheme, wherein, be equipped with the defrosting pressure controller that is arranged in adjusting the pressure of the defrosting medium in the pipeline and be arranged in detecting the temperature sensor of the temperature of the defrosting medium in the pipeline on the defrosting pipeline.
The utility model discloses a preferred scheme, wherein, be equipped with the loop pressure controller who is arranged in adjusting the gas refrigerant pressure in the pipeline on the loop pipe, this loop pressure controller is arranged in controlling the evaporating temperature in the trunk line cooler for the evaporating pressure of the refrigerant after the defrosting is the same with defrosting condensation pressure.
The utility model discloses a preferred scheme, wherein, the trunk line cooler includes the subcooling evaporimeter, and this subcooling evaporimeter sets up in the outside of refrigeration trunk line. The specific structure of the supercooling evaporator can refer to the structure of the evaporator in the prior art.
The utility model discloses a preferred scheme, wherein, be equipped with the play liquid flow control valve that is arranged in controlling the flow that lets in the refrigerant in the pipeline on adjusting the side pipe.
Compared with the prior art, the utility model following beneficial effect has:
1. the present invention relates to a refrigeration system, and more particularly to a refrigeration system, in which a liquid refrigerant of a refrigeration main pipe is cooled by a cooling medium (i.e., a refrigerant having a higher evaporation pressure than the evaporation pressure of the latter) and the temperature of the liquid refrigerant is higher than the temperature of a cooling medium (a cooling target) of the refrigeration system, and the evaporation temperature of the liquid refrigerant of the refrigeration main pipe is lower than the temperature of the cooling medium after defrosting. According to the refrigeration and evaporation law, the lower the evaporation temperature is, the smaller the refrigeration capacity of the refrigeration system is, the lower the operation efficiency is, and the larger the energy consumption is; so the utility model discloses in, carry out the subcooling to the refrigerant of refrigeration trunk line in trunk line cooler (evaporating temperature is higher) with the refrigerant after defrosting, obtain the refrigerating output that the refrigerating output is greater than the refrigerant after defrosting and carries to carrying out the evaporation to the evaporimeter that is refrigerating (evaporating temperature is lower), utilize the refrigerant after defrosting more fully, obtain more refrigerating outputs.
2. After supercooling, the refrigerant after defrosting and before supercooling is introduced into the refrigerant after supercooling, so that the return air superheat degree of the refrigerant is reduced, the return air superheat degree is controlled to be close to a low value in a reasonable range, and the refrigerating capacity of the refrigerating system is improved.
Drawings
Fig. 1 is a pressure-enthalpy diagram of one embodiment, wherein the numerals indicate the locations of the refrigerant, 1 indicates the compressor inlet, 2 indicates the condenser inlet, 3 indicates the expansion valve inlet, 4 indicates the inlet of the refrigerating evaporator, 5 indicates the accumulator inlet, 6 indicates the primary evaporator inlet, 7 indicates the evaporator inlet to be defrosted, 8 indicates the evaporator outlet to be defrosted, 9 indicates the main pipe cooler inlet, and 10 indicates the merging point of the refrigerant of the refrigerating main pipe and the defrosted refrigerant. Wherein, the circulation path of the refrigerant as the defrosting medium is as follows: 10-2-5-6-7-8-9, the circulation path of the refrigerant for normal refrigeration is: 1-2-3-4.
Figure 2 is a pressure enthalpy diagram for another embodiment.
When neglecting the pipe pressure loss, the pressures at points 6, 7, and 8 should be the same, but for clarity of the overall flow of defrosting refrigerant, the pressures at 6, 7, and 8 are treated with slight differentiation in fig. 1 and 2.
Fig. 3 is a schematic structural diagram of an embodiment of the defrosting device for supercooling refrigerant of the main path of the refrigeration cycle of the present invention, which is applied to a refrigeration system, wherein the dotted line represents a defrosting pipeline.
Detailed Description
In order to make those skilled in the art understand the technical solution of the present invention well, the present invention will be further described below with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 3, the defrosting apparatus for supercooling the refrigerant of the main refrigeration cycle in the present embodiment is integrated in a refrigeration system, and includes a defrosting pipe 7 for branching the refrigerant of the main refrigeration pipe 3 to the evaporator 4(a) to be defrosted, a main pipe cooler 9 for supercooling the refrigerant of the main refrigeration pipe 3, a defrosting liquid pipe 8 for delivering the defrosted refrigerant to the main pipe cooler 9, and a loop pipe 10 for delivering the supercooled refrigerant back to the compressor 1; the defrosting pipeline 7 is connected to the main refrigerating pipeline 3 in a bypassing manner; the head end of the defrosting liquid outlet pipeline 8 is connected with the outlet of the evaporator 4(a) to be defrosted, and the tail end is connected with the inlet of the main pipeline cooler 9; the head end of the loop pipeline 10 is connected with the outlet of the main pipeline cooler 9, and the tail end of the loop pipeline is connected with the inlet of the compressor 1; an adjusting bypass pipe 11 is connected between the defrosting liquid outlet pipe 8 and the loop pipe 10.
Referring to fig. 3, the defrosting apparatus in this embodiment further includes a primary evaporation device 6 for absorbing heat by evaporation of the liquid refrigerant condensed by the condenser 2, and a branch pipe 5 for delivering the liquid refrigerant in the refrigeration main pipe 3 to the primary evaporation device 6, wherein the defrosting pipe 7 has a head end connected to an outlet of the primary evaporation device 6 and a tail end connected to an inlet of the evaporator 4(a) to be defrosted.
Referring to fig. 3, the primary evaporation device 6 includes a primary expansion valve and a primary evaporation heat exchanger, and the primary expansion valve is disposed on the diversion pipe 5. Reference is made to the prior art for details of the construction of the primary evaporator 6.
Further, the primary evaporation heat exchanger is arranged on the outer side of the main refrigeration pipeline 3 for conveying liquid refrigerant, and is used for supercooling the refrigerant in the main refrigeration pipeline 3 and improving the refrigeration capacity of the refrigerant.
Referring to fig. 3, the defrosting duct 7 is provided with a defrosting pressure controller 13 for adjusting the pressure of the defrosting medium in the duct and a temperature sensor 12 for detecting the temperature of the defrosting medium in the duct.
Referring to fig. 3, a loop pressure controller 14 for adjusting the pressure of the gas refrigerant in the loop pipe 10 is provided, and the loop pressure controller 14 is used for controlling the evaporation temperature in the main pipe cooler 9 so that the evaporation pressure of the defrosted refrigerant is the same as the defrosted condensation pressure.
Referring to fig. 3, the main pipe cooler 9 includes a supercooling evaporator provided outside the refrigerating main pipe 3. The specific structure of the supercooling evaporator can refer to the structure of the evaporator in the prior art.
Referring to fig. 3, the adjusting bypass pipe 11 is provided with a liquid outlet flow control valve for controlling the flow of the refrigerant introduced into the pipeline.
Referring to fig. 1 and 3, the defrosting method for supercooling refrigerant of the main path of the refrigeration cycle in the present embodiment includes the following steps:
when the refrigeration system works, the compressor 1 compresses low-temperature and low-pressure gas refrigerant into high-temperature and high-pressure gas refrigerant through compression work, the high-temperature and high-pressure gas refrigerant is converted into liquid refrigerant after being condensed by the condenser 2, and then the liquid refrigerant is conveyed to the refrigerated evaporator 4(b) through the refrigeration main pipeline 3. In the process, part of the liquid refrigerant (mostly used for normal refrigeration work and small part for defrosting of the evaporator) formed after the condenser 2 is condensed is shunted to the primary evaporation device 6 through the shunt pipe 5, and the liquid refrigerant evaporates and absorbs heat in the primary evaporation device 6 to supercool the liquid refrigerant in the main refrigeration pipe 3. Of course, it is also possible to directly branch the refrigerant in the main refrigeration pipeline 3 to the evaporator 4(a) to be defrosted.
In the supercooling process, the liquid refrigerant is evaporated and absorbs heat to be converted into a vapor-liquid mixture refrigerant, and then the vapor-liquid mixture refrigerant is conveyed to the evaporator 4(a) to be defrosted through the defrosting pipeline 7, and the mixture refrigerant is used as a defrosting medium for releasing heat to melt frosting on the evaporator.
The defrosted refrigerant is conveyed to the main pipe cooler 9 through the defrosting liquid outlet pipe 8, and in the main pipe cooler 9 (the evaporation temperature in the main pipe cooler 9 is higher than that of the refrigerating evaporator 4 (b)), the defrosted refrigerant is evaporated and absorbs heat, and the refrigerant in the refrigerating main pipe 3 is supercooled.
Finally, the refrigerant which finishes the supercooling operation is conveyed back to the compressor 1 through the loop pipeline 10, wherein before being conveyed to the compressor 1, the refrigerant in the defrosting liquid outlet pipeline 8 is introduced into the loop pipeline 10 through the adjusting bypass pipe 11, and the return air superheat degree of the refrigerant in the loop pipeline 10 is reduced.
Before defrosting, the evaporation frequency of the refrigerant as a defrosting medium is several times, namely, the refrigerant is not limited to one time, and can be multiple times, and the specific frequency can be flexibly selected according to practical application.
Specifically, during defrost operation, at least one evaporator is cooling. Of course, the number of evaporators can be three, four or even more.
Referring to fig. 1 and 3, the defrosting device for supercooling the refrigerant of the main path of the refrigeration cycle in the present embodiment operates on the following principle:
during operation, the liquid refrigerant that forms after will condensing condenser 2 through reposition of redundant personnel pipeline 5 shunts to evaporation plant 6 once, and in evaporation plant 6, the liquid refrigerant evaporates the heat absorption, carries out the subcooling to the liquid refrigerant in the main refrigeration pipeline 3 to turn into vapour-liquid mixture refrigerant, make the specific enthalpy that prepares to carry the liquid refrigerant in the refrigerated evaporimeter 4(b) lower (the temperature is lower), with the heat absorption (refrigeration) ability that improves oneself.
The vapor-liquid mixture refrigerant is conveyed to the evaporator 4(a) to be defrosted through the defrosting pipeline 7, and the mixture refrigerant is used as a defrosting medium for releasing heat to melt frost on the evaporator. After the refrigerant is condensed by the condenser 2 (which is equivalent to the refrigerant serving as the defrosting medium being condensed for the first time), the part of the refrigerant enters the primary evaporation device 6 to be evaporated and absorb heat, the refrigerant of the main refrigeration pipeline 3 is supercooled or cooled for a specific environment, the first evaporation and heat absorption of the refrigerant serving as the defrosting medium are realized, and the first refrigeration effect is generated.
The defrosted refrigerant is conveyed to the main pipe cooler 9 through the defrosting liquid outlet pipe 8, and is supercooled in the refrigerating main pipe 3, so that a secondary refrigerating effect is generated, the output of twice refrigerating capacity is realized, and the refrigerating capacity of the refrigerating system is effectively improved. Further, since the temperature of the liquid refrigerant of the main cooling pipe 3 is higher than the temperature of the cooling object (cooling object) of the refrigeration system, and the evaporation temperature of the refrigerant must be lower than the temperature of the cooling object, in the present invention, the liquid refrigerant of the main cooling pipe 3 is used as the cooling object of the defrosted refrigerant, so the evaporation temperature for supercooling the liquid refrigerant of the main cooling pipe 3 can be higher than the evaporation temperature of the evaporator 4(b) that is cooling (i.e. the former evaporation pressure is higher than the latter evaporation pressure). According to the refrigeration and evaporation law, the lower the evaporation temperature is, the smaller the refrigeration capacity of the refrigeration system is, the lower the operation efficiency is, and the larger the energy consumption is; so the utility model discloses in, carry out the subcooling to the refrigerant of refrigeration trunk line 3 in trunk line cooler 9 (evaporating temperature is higher) with the refrigerant after the defrosting, obtain the refrigerating output that the refrigerant after the refrigerating output is greater than carrying the refrigerant after the defrosting to the evaporimeter 4(b) that is refrigerating (evaporating temperature is lower) carries out the evaporation, utilize the refrigerant after the defrosting more, obtain more refrigerating outputs.
And finally, the refrigerant which finishes the supercooling work is conveyed back to the compressor 1 through a loop pipeline 10, wherein before being conveyed to the compressor 1, the refrigerant which is positioned after defrosting and before supercooling is introduced into the refrigerant which finishes the supercooling work through an adjusting bypass pipe 11, the return air pressure of the compressor is adjusted to a reasonable range, the return air superheat degree of the refrigerant is reduced, the return air superheat degree is controlled to be close to a low value in the reasonable range, and the refrigerating capacity of a refrigerating system is improved.
Example 2
Referring to fig. 2, unlike embodiment 1, in the present embodiment, after being supercooled, a liquid refrigerant is converted into a gas refrigerant by absorbing heat; the gas-liquid mixture refrigerant is conveyed to the evaporator 4(a) to be defrosted through the defrosting pipeline 7, and the gas refrigerant is used as a defrosting medium for releasing heat to melt frost on the evaporator.
Example 3
Unlike embodiment 1, when the refrigerant serving as the defrosting medium in this embodiment is first evaporated to absorb heat for cooling the set cooling environment, the energy use efficiency can be improved.
The above is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. A defrosting device for supercooling a refrigerant of a main refrigeration cycle pipeline is integrated in a refrigeration system and is characterized by comprising a defrosting pipeline, a main pipeline cooler, a defrosting liquid outlet pipeline and a loop pipeline, wherein the defrosting pipeline is used for shunting the refrigerant of a main refrigeration pipeline into an evaporator to be defrosted;
the defrosting pipeline is connected to the main refrigerating pipeline in a bypassing manner; the head end of the defrosting liquid outlet pipeline is connected with the outlet of the evaporator to be defrosted, and the tail end of the defrosting liquid outlet pipeline is connected with the inlet of the main pipeline cooler;
the head end of the loop pipeline is connected with the outlet of the main pipeline cooler, and the tail end of the loop pipeline is connected with the inlet of the compressor:
an adjusting bypass pipe is connected between the defrosting liquid outlet pipeline and the loop pipeline.
2. The defrosting device for supercooling a main refrigerant of a refrigeration cycle of claim 1, further comprising a primary evaporation device for evaporating and absorbing heat of the condensed liquid refrigerant of the condenser and a branch pipe for delivering the liquid refrigerant in the main refrigeration pipeline to the primary evaporation device, wherein the defrosting pipe is connected with an outlet of the primary evaporation device at the head end and with an inlet of an evaporator to be defrosted at the tail end.
3. The defrosting device for supercooling a main refrigerant of a refrigeration cycle of claim 2, wherein the primary evaporating means includes a primary expansion valve and a primary evaporating heat exchanger, and the primary expansion valve is provided on the diverging pipe.
4. The defrosting device for supercooling main refrigerant of a refrigerating cycle of claim 3, wherein the primary evaporating heat exchanger is disposed outside a main refrigerating pipe for transporting liquid refrigerant.
5. The defrosting device for supercooling refrigerant of a main circuit of a refrigerating cycle according to any one of claims 1 to 4, wherein the defrosting pipe is provided with a defrosting pressure controller for adjusting the pressure of the defrosting medium in the pipe and a temperature sensor for detecting the temperature of the defrosting medium in the pipe.
6. The defrosting device for supercooling a main refrigerant of a refrigeration cycle according to any one of claims 1 to 4, wherein the circuit pipe is provided with a circuit pressure controller for adjusting a pressure of the gas refrigerant in the pipe.
7. The defrosting device for supercooling main refrigerant of a refrigerating cycle according to any one of claims 1 to 4, wherein the main pipe cooler includes a supercooling evaporator provided outside the refrigerating main pipe.
8. The defrosting device for supercooling refrigerant of a main branch of a refrigerating cycle according to any one of claims 1 to 4, wherein the regulating bypass pipe is provided with a liquid outlet flow control valve for controlling the flow rate of the refrigerant introduced into the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912066.9U CN212274332U (en) | 2020-05-26 | 2020-05-26 | Defrosting device for supercooling refrigerant of main path of refrigeration cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020912066.9U CN212274332U (en) | 2020-05-26 | 2020-05-26 | Defrosting device for supercooling refrigerant of main path of refrigeration cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212274332U true CN212274332U (en) | 2021-01-01 |
Family
ID=73879730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020912066.9U Active CN212274332U (en) | 2020-05-26 | 2020-05-26 | Defrosting device for supercooling refrigerant of main path of refrigeration cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212274332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536722A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device for supercooling refrigerant of main path of refrigeration cycle |
-
2020
- 2020-05-26 CN CN202020912066.9U patent/CN212274332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536722A (en) * | 2020-05-26 | 2020-08-14 | 广东省现代农业装备研究所 | Defrosting method and device for supercooling refrigerant of main path of refrigeration cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108332285B (en) | Air conditioner system | |
| CA2420968C (en) | Method and arrangement for defrosting a vapor compression system | |
| US6237359B1 (en) | Utilization of harvest and/or melt water from an ice machine for a refrigerant subcool/precool system and method therefor | |
| CN100523652C (en) | Air source solution type heat pump device | |
| CN101776353A (en) | Cooling tower-based solution type cold and hot water unit | |
| CN212274329U (en) | Defrosting device adopting defrosted refrigerant to directly spray liquid for evaporation | |
| CN212274332U (en) | Defrosting device for supercooling refrigerant of main path of refrigeration cycle | |
| CN111536725A (en) | Defrosting method and device for evaporating defrosting refrigerant by using special evaporator | |
| CN215412599U (en) | Refrigerating system | |
| CN212274333U (en) | Defrosting device for secondary condensation and supercooling of main path refrigerant | |
| CN201438057U (en) | Hot-gas bypass air conditioner | |
| CN212274334U (en) | Defrosting device for supercooling main pipeline refrigerant by using defrosting medium | |
| CN212481775U (en) | Defrosting device for evaporating defrosting refrigerant by using special evaporator | |
| CN201463433U (en) | Hot air defroster for multi-set parallel evaporator refrigeration system | |
| CN212274330U (en) | Defrosting device adopting secondary condensation of refrigerant | |
| CN205641655U (en) | Cascade refrigeration circulation system and have its air conditioner | |
| CN111536723A (en) | Defrosting method and device for secondary condensation and supercooling of main path refrigerant | |
| CN111121352A (en) | Continuous defrosting refrigeration control system capable of reducing heat leakage | |
| CN108375255B (en) | Air conditioner system | |
| CN212274331U (en) | Defrosting device adopting medium specific enthalpy vapor-liquid mixture refrigerant | |
| WO2019128518A1 (en) | Air conditioner system | |
| CN107850347A (en) | Refrigerating plant | |
| CN111536720A (en) | Defrosting method and device adopting secondary condensation of refrigerant | |
| CN111536722A (en) | Defrosting method and device for supercooling refrigerant of main path of refrigeration cycle | |
| CN214841174U (en) | Refrigerating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |