CN207407559U - A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment - Google Patents
A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment Download PDFInfo
- Publication number
- CN207407559U CN207407559U CN201721373104.2U CN201721373104U CN207407559U CN 207407559 U CN207407559 U CN 207407559U CN 201721373104 U CN201721373104 U CN 201721373104U CN 207407559 U CN207407559 U CN 207407559U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cold insulation
- solenoid valve
- way reversing
- pass solenoid
- 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
Abstract
The utility model provides a kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment, and defrosting system includes compressor and four-way reversing valve, and four-way reversing valve includes the first nozzle, the second nozzle, the 3rd nozzle and the 4th nozzle.Compressor outlet pipeline is divided into the first pipeline and the second pipeline, it is connected with the first single-pass solenoid valve, condenser, throttling set and check valve in first pipeline in turn, the second single-pass solenoid valve is connected in second pipeline, check valve and the second single-pass solenoid valve are connected with the first nozzle, 3rd nozzle is connected with the gas returning port of compressor, and the 4th nozzle is connected by evaporator combinations part with the second nozzle；Load down cold insulation defrosting system by superheated vapour is divided into the first refrigeration work state and the second refrigeration work state when working, the second refrigeration work state includes positive defrost cold insulation and reversed defrost cold insulation.The utility model is realized using box house subregional refrigerating function is kept while high-temperature gas defrosting, is freezed in defrosting, is completed Cooling and Heat Source and is utilized simultaneously.
Description
Technical field
The utility model is related to art of refrigeration units, and in particular to a kind of load down cold insulation defrosting system by superheated vapour and refrigeration are set
It is standby.
Background technology
Refrigerator, refrigerator class product currently on the market all realizes defrosting function using electrically heated mode.Do not use
The reason for hot gas defrosting, is mainly ineffective or can not solve the problems, such as overload of compressor, and principle is：Pass through side during defrosting
Pipeline defrost is impacted, afterwards high temperature system in siphunculus road by exhaust outlet of compressor access evaporator (or defrost pipe) by high-temperature gas
Refrigerant vapour mixes extra refrigerant liquid and is returned directly to by return line in compressor, high evaporating temperature work at this time
Condition makes the running current of compressor be far longer than its design requirement, caused in the short time overheat, overload protection and shut down can not
Ensure defrost effect, while overload operation also increases the power consumption of system, in addition excessive refrigerant liquid easily makes
Exhaust valve plate liquid hazards cause compressor to scrap.The company in some product scopes has also carried out correlation and has ground in view of the above problems
Study carefully, such as refrigerant liquid extra in evaporator is drawn into storage to enhance the effect of defrosting in evaporator, prevent compressor
Liquid hammer, though such scheme can improve reliability but larger load can be caused to increase power consumption to press.Both the above is normal
Square case has a common ground when being hot gas defrosting, and product must bypass stopping refrigerating function, while the high temperature refrigerant of evaporator
The temperature inside the box is directly enhanced, is unfavorable for the preservation of case memory storing.
Utility model content
The problem of compressor load is big during for existing refrigeration system defrosting, first purpose of the utility model are to provide
A kind of load down cold insulation defrosting system by superheated vapour keeps box portion region refrigeration while defrosting.
The utility model uses following technical solution：
A kind of load down cold insulation defrosting system by superheated vapour, including compressor and four-way reversing valve, four-way reversing valve includes first
Nozzle, the second nozzle, the 3rd nozzle and the 4th nozzle；
The compressor outlet pipeline is divided into the first pipeline and the second pipeline, and first is connected in turn in first pipeline
Single-pass solenoid valve, condenser, throttling set and check valve are connected with the second single-pass solenoid valve, the check valve in the second pipeline
It is connected with the second single-pass solenoid valve with the first nozzle；
3rd nozzle is connected with the gas returning port of compressor；
4th nozzle is connected by evaporator combinations part with the second nozzle；
Load down cold insulation defrosting system by superheated vapour is divided into the first refrigeration work state and the second refrigeration work state when working, the
Two refrigeration work states include positive defrost cold insulation and reversed defrost cold insulation.
Preferably, the evaporator combinations part includes the first stage evaporation device, and the first stage evaporation device is connected with inside
Throttling set is parallel with the 3rd single-pass solenoid valve on internal restriction device, and internal restriction device is connected with the second stage evaporation device；
Wherein, the 4th nozzle is connected with the first stage evaporation device, and the second stage evaporation device is connected with the second nozzle.
Preferably, in the first refrigeration work state, the first single-pass solenoid valve and the 3rd single-pass solenoid valve are both turned on, and second
Single-pass solenoid valve is closed, four-way reversing valve no power.
Preferably, in the second refrigeration work state, the first single-pass solenoid valve and the 3rd single-pass solenoid valve are turned off, and second
Single-pass solenoid valve conduction, wherein, during positive defrost cold insulation, four-way reversing valve no power, during reversed defrost cold insulation, four-way reversing valve
It is powered.
Preferably, in the first refrigeration work state, the high-temperature high-pressure refrigerant steam of compressor discharge is single by first
Three-way electromagnetic valve enters condenser, is condensed into refrigerant liquid within the condenser, becomes low-temp low-pressure refrigeration using throttling set
After agent liquid, four-way reversing valve is entered by the first nozzle after check valve, is flowed out afterwards from the 4th nozzle, successively by first
Segmented evaporator, the 3rd single-pass solenoid valve, the second segmented evaporator, the second nozzle are flowed into four-way reversing valve, using
3rd nozzle is flowed out in compressor.
Preferably, in positive defrost cold insulation, the high-temperature high-pressure refrigerant steam of compressor discharge passes through the second single-pass electricity
Magnet valve enters four-way reversing valve, is flowed out afterwards from the 4th nozzle, by the first segmented evaporator, the first segmented evaporator energy
It is defrosted and as condenser, using built-in throttling set, after becoming low-temperature low-pressure refrigerant liquid, into the second segmentation
Formula evaporator, the second segmented evaporator freeze article, after through the second nozzle flow into four-way reversing valve in, most pass through afterwards
The 3rd nozzle is crossed to be back in compressor.
Preferably, in reversed defrost cold insulation, the high-temperature high-pressure refrigerant steam of compressor discharge passes through the second single-pass electricity
Magnet valve enters four-way reversing valve, is flowed out afterwards from the second nozzle, by the second segmented evaporator, the second segmented evaporator energy
It is defrosted and as condenser, using built-in throttling set, after becoming low-temperature low-pressure refrigerant liquid, into the first segmentation
Formula evaporator, the first segmented evaporator freeze article, after through the 4th nozzle flow into four-way reversing valve in, most pass through afterwards
The 3rd nozzle is crossed to be back in compressor.
Preferably, the throttling set is capillary.
There is provided a kind of refrigeration equipments for second purpose of the utility model.
A kind of refrigeration equipment is equipped with above-described load down cold insulation defrosting system by superheated vapour in the refrigeration equipment.
The utility model has an advantageous effect in that：
Load down cold insulation defrosting system by superheated vapour provided by the utility model in the second refrigeration work state, can realize profit
With box house subregional refrigerating function is kept while high-temperature gas defrosting, defrosting is carried out at the same time with refrigeration, in defrosting
It the shortcomings that refrigeration is completed Cooling and Heat Source and utilized simultaneously, avoids previous defrosting system by superheated vapour load high unstable and greatly improves
The operational efficiency of system, avoids refrigeration product internal temperature wide fluctuations so that the temperature inside the box stabilizing energy-saving is with obvious effects.
Description of the drawings
Fig. 1 is structure diagram of the load down cold insulation defrosting system by superheated vapour in the first refrigeration work state.
Fig. 2 is structure diagram of the load down cold insulation defrosting system by superheated vapour in positive defrost cold insulation.
Fig. 3 is structure diagram of the load down cold insulation defrosting system by superheated vapour in reversed defrost cold insulation.
Specific embodiment
Specific embodiment of the present utility model is described further in the following with reference to the drawings and specific embodiments：
Embodiment 1
With reference to Fig. 1 to Fig. 3, a kind of load down cold insulation defrosting system by superheated vapour, including compressor 1 and four-way reversing valve 6, four-way
Reversal valve includes the first nozzle 61, the second nozzle 62, the 3rd nozzle 63 and the 4th nozzle 64.
1 export pipeline of compressor is divided into the first pipeline and the second pipeline, wherein, it is single to be connected with first in the first pipeline in turn
Three-way electromagnetic valve 2, condenser 3, throttling set 4 and check valve 5, throttling set are capillary；It is single that second is connected in second pipeline
Three-way electromagnetic valve 10,5 and second single-pass solenoid valve 10 of check valve are connected with the first nozzle 61.
3rd nozzle 63 is connected with the gas returning port of compressor.
4th nozzle 64 is connected by evaporator combinations part with the second nozzle 62, and evaporator combinations part includes first point
Section evaporator 7, the first stage evaporation device are connected with internal restriction device 11, and internal restriction device 11 is capillary, internal restriction
The 3rd single-pass solenoid valve 8 is parallel on device 11, internal restriction device 11 is connected with the second stage evaporation device 9.
Wherein, the 4th nozzle 64 is connected with the first stage evaporation device 7, and the second stage evaporation device 9 is connected with the second nozzle 62.
Load down cold insulation defrosting system by superheated vapour is divided into the first refrigeration work state and the second refrigeration work state when working, the
Two refrigeration work states include positive defrost cold insulation and reversed defrost cold insulation.
Wherein, in the first refrigeration work state, the first single-pass solenoid valve 2 and the 3rd single-pass solenoid valve 8 are both turned on, and second
Single-pass solenoid valve 10 is closed, 6 no power of four-way reversing valve, and the control valve in four-way reversing valve 6 is in release conditions.
As shown in Figure 1, in the first refrigeration work state, high-temperature high-pressure refrigerant steam that compressor 1 is discharged passes through the
One single-pass solenoid valve 2 enters condenser 3, outwardly radiates in the refrigerant vapour of 3 high temperature high pressure of condenser, is condensed into system
Cryogen liquid, using throttling set 4 become low-temperature low-pressure refrigerant liquid after, after check valve 5 by the first nozzle 61 into
Enter four-way reversing valve 6, flowed out afterwards from the 4th nozzle 64, successively by the first segmented evaporator 7, the 3rd single-pass solenoid valve 8,
Second segmented evaporator 9, the second nozzle 62 are flowed into four-way reversing valve, are flowed out to using the 3rd nozzle 63 in compressor 1.
Under the first refrigeration work state, the first segmented evaporator 7 and the series connection of the second segmented evaporator 9 are entire for one
Evaporator combinations, the two are article refrigeration, and the first refrigeration work state is refrigeration cycle.
In the second refrigeration work state, the first single-pass solenoid valve 2 and the 3rd single-pass solenoid valve 8 are turned off, the second single-pass
Solenoid valve 10 turns on, wherein, during positive defrost cold insulation, four-way reversing valve no power；During reversed defrost cold insulation, four-way reversing valve leads to
Electricity, the control valve movement in four-way reversing valve 6, changes the flow direction in four-way reversing valve.
As shown in Fig. 2, in positive defrost cold insulation, the high-temperature high-pressure refrigerant steam that compressor 1 is discharged is single by second
Three-way electromagnetic valve 10 enters four-way reversing valve 6, is flowed out afterwards from the 4th nozzle 64, by the first segmented evaporator 7, the first segmentation
Formula evaporator 7 plays a dual role of defrosting and is used as condenser at this time, using 11 devices of built-in throttling, becomes low-temp low-pressure
After refrigerant liquid, into the second segmented evaporator 9, the second segmented evaporator at this time can freeze article, afterwards
It flows into four-way reversing valve through the second nozzle 62, is finally back to by the 3rd nozzle 63 in compressor 1, be ensure that in the second system
The function of load down and cold insulation is played during cold working condition.
First segmented evaporator 7 has different defrosting contents in direct-cooled and air-cooled product：First in direct-cooled system
Stage evaporation device 7 is pasted onto on the outside of wall of inner container, and the frost layer that high-temperature gas is transferred heat in its pipeline on the inside of wall of inner container makes
It melts, and defrosting water is discharged to by drainage system outside babinet；The first stage evaporation device 7 is finned evaporation in air cooling system
The flow all the way of certain in device, high-temperature gas directly melts the frost layer on pipeline and its associated fins in pipe, and defrosting water passes through evaporation
The water receiver of device bottom is discharged to outside babinet.First stage evaporation device 7 is high by the high temperature in pipe while defrosting function is played
Compression refrigerant steam is condensed into refrigerant liquid and becomes the refrigerant liquid of low-temp low-pressure after internal restriction device 11 into the
Evaporation endothermic freezes not defrosting position in babinet in two-section evaporator 9.
The refrigerant vapour of low-temp low-pressure after evaporation is back to and the work done during compression of compressor is reduced in compressor 1 prevents pair
The overload impact of compressor, the purpose that not only avoiding overload of compressor overheating protection realizes load down maintain system simultaneously
Stability ensures the effect of hot gas defrosting, and another aspect low-temperature refrigerant liquid, which absorbs heat to evaporate in the second stage evaporation device 9, to be made
It obtains not defrosting part in case to can continue to freeze, article temperature residing for guarantee does not go up to realize the purpose of cold insulation.
As shown in figure 3, in reversed defrost cold insulation, the high-temperature high-pressure refrigerant steam that compressor 1 is discharged is single by second
Three-way electromagnetic valve 10 enters four-way reversing valve 6, is flowed out afterwards from the second nozzle 62, by the second segmented evaporator 9, the second segmentation
Formula evaporator plays a dual role of defrosting and is used as condenser, using built-in throttling set 11, becomes low-temp low-pressure refrigeration
After agent liquid, into the first segmented evaporator 7, the first segmented evaporator 7 can freeze article, after through the 4th pipe
Mouth 64 is flowed into four-way reversing valves, is finally back to by the 3rd nozzle 63 in compressor.
By it is described above we can show that the principle of reversed defrost cold insulation is identical with the principle of positive defrost cold insulation, just
It is that 7 region of the first segmented evaporator carries out defrosting to defrost cold insulation, 9 region of the second segmented evaporator is freezed；Reversely
Defrost cold insulation is that 9 region of the second segmented evaporator carries out defrosting, and 7 region of the first segmented evaporator freezes, entire the
The operation principle of two refrigeration work states is exactly defrost, the conversion for freezing region, realizes region-wide defrost cold insulation.
Embodiment 2
A kind of refrigeration equipment, equipped with the load down cold insulation defrosting system by superheated vapour described in above example in refrigeration equipment.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model also should
Belong to the scope of protection of the utility model.
Claims (8)
1. a kind of load down cold insulation defrosting system by superheated vapour, which is characterized in that including compressor and four-way reversing valve, four-way reversing valve
Including the first nozzle, the second nozzle, the 3rd nozzle and the 4th nozzle；
The compressor outlet pipeline is divided into the first pipeline and the second pipeline, and the first single-pass is connected in turn in first pipeline
Solenoid valve, condenser, throttling set and check valve are connected with the second single-pass solenoid valve, the check valve and in the second pipeline
Two single-pass solenoid valves are connected with the first nozzle；
3rd nozzle is connected with the gas returning port of compressor；
4th nozzle is connected by evaporator combinations part with the second nozzle；
Load down cold insulation defrosting system by superheated vapour is divided into the first refrigeration work state and the second refrigeration work state, the second system when working
Cold working condition includes positive defrost cold insulation and reversed defrost cold insulation.
A kind of 2. load down cold insulation defrosting system by superheated vapour according to claim 1, which is characterized in that the evaporator combinations
Part includes the first stage evaporation device, and the first stage evaporation device is connected with internal restriction device, is parallel on internal restriction device
3rd single-pass solenoid valve, internal restriction device are connected with the second stage evaporation device；Wherein, the 4th nozzle and the first stage evaporation device
It is connected, the second stage evaporation device is connected with the second nozzle.
3. a kind of load down cold insulation defrosting system by superheated vapour according to claim 2, which is characterized in that in the first refrigeration work
During state, the first single-pass solenoid valve and the 3rd single-pass solenoid valve are both turned on, and the second single-pass solenoid valve is closed, and four-way reversing valve is obstructed
Electricity.
4. a kind of load down cold insulation defrosting system by superheated vapour according to claim 2, which is characterized in that in the second refrigeration work
During state, the first single-pass solenoid valve and the 3rd single-pass solenoid valve are turned off, the second single-pass solenoid valve conduction, wherein, positive defrost
During cold insulation, four-way reversing valve no power, during reversed defrost cold insulation, four-way reversing valve is powered.
5. a kind of load down cold insulation defrosting system by superheated vapour according to claim 3, which is characterized in that in the first refrigeration work
During state, the high-temperature high-pressure refrigerant steam of compressor discharge enters condenser by the first single-pass solenoid valve, within the condenser
Refrigerant liquid is condensed into, after becoming low-temperature low-pressure refrigerant liquid using throttling set, passes through the first pipe after check valve
Mouthful into four-way reversing valve, flowed out afterwards from the 4th nozzle, successively by the first segmented evaporator, the 3rd single-pass solenoid valve,
Second segmented evaporator, the second nozzle are flowed into four-way reversing valve, are flowed out to using the 3rd nozzle in compressor.
6. a kind of load down cold insulation defrosting system by superheated vapour according to claim 4, which is characterized in that in positive defrost cold insulation
When, the high-temperature high-pressure refrigerant steam of compressor discharge enters four-way reversing valve by the second single-pass solenoid valve, afterwards from the 4th
Nozzle flows out, and by the first segmented evaporator, the first segmented evaporator can be defrosted and as condenser, using interior
Throttling set is put, after becoming low-temperature low-pressure refrigerant liquid, into the second segmented evaporator, the second segmented evaporator is to object
Product are freezed, after through the second nozzle flow into four-way reversing valve in, be finally back to by the 3rd nozzle in compressor.
7. a kind of load down cold insulation defrosting system by superheated vapour according to claim 4, which is characterized in that in reversed defrost cold insulation
When, the high-temperature high-pressure refrigerant steam of compressor discharge enters four-way reversing valve by the second single-pass solenoid valve, afterwards from second
Nozzle flows out, and by the second segmented evaporator, the second segmented evaporator can be defrosted and as condenser, using interior
Throttling set is put, after becoming low-temperature low-pressure refrigerant liquid, into the first segmented evaporator, the first segmented evaporator is to object
Product are freezed, after through the 4th nozzle flow into four-way reversing valve in, be finally back to by the 3rd nozzle in compressor.
8. a kind of refrigeration equipment, which is characterized in that negative equipped with claim 1 to 7 any one of them drop in the refrigeration equipment
Lotus cold insulation defrosting system by superheated vapour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373104.2U CN207407559U (en) | 2017-10-24 | 2017-10-24 | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721373104.2U CN207407559U (en) | 2017-10-24 | 2017-10-24 | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207407559U true CN207407559U (en) | 2018-05-25 |
Family
ID=62321177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721373104.2U Active CN207407559U (en) | 2017-10-24 | 2017-10-24 | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207407559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782030A (en) * | 2017-10-24 | 2018-03-09 | 澳柯玛股份有限公司 | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration plant |
| CN110895061A (en) * | 2018-09-12 | 2020-03-20 | 艾默生环境优化技术(苏州)有限公司 | Refrigerant circulation system and defrosting method thereof |
-
2017
- 2017-10-24 CN CN201721373104.2U patent/CN207407559U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782030A (en) * | 2017-10-24 | 2018-03-09 | 澳柯玛股份有限公司 | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration plant |
| CN110895061A (en) * | 2018-09-12 | 2020-03-20 | 艾默生环境优化技术(苏州)有限公司 | Refrigerant circulation system and defrosting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140130532A1 (en) | Refrigeration system utilizing natural circulation of heat to carry out defrosting thereof | |
| CN105466091A (en) | Heat pump type air conditioner refrigerating circulating system with subcooler | |
| CN107782030A (en) | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration plant | |
| CN104879975A (en) | Hot-gas bypass and phase change heat storage combined defrosting system applied to refrigerator | |
| CN108759138B (en) | Operation method and system of secondary throttling middle incomplete cooling refrigerating system | |
| CN106225358A (en) | Cold storage hot gas defrosting refrigeration system and heat accumulating type steam defrosting heat pump system | |
| CN107178924A (en) | A kind of accumulation of heat is not shut down except defrosting system and air-conditioning | |
| CN104110920A (en) | Air-source heat pump system for recycling waste heat of compressor | |
| CN103075831A (en) | Novel air-cooled evaporation type composite refrigeration house refrigerating system | |
| CN101487639B (en) | Air-cooling double-evaporator heat pump unit | |
| CN104344479A (en) | Cold accumulation type energy-saving air conditioning system and operation method thereof | |
| CN2906415Y (en) | Double-stage cold-accumulation system | |
| CN207407559U (en) | A kind of load down cold insulation defrosting system by superheated vapour and refrigeration equipment | |
| CN105571198A (en) | Efficient refrigerating system based on cold accumulation and supercooling | |
| CN106705494A (en) | Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing | |
| CN101113847A (en) | Freezing circulating of refrigerator | |
| CN103759457A (en) | Effective cold-storage type less-ammonia refrigeration system of ammonia refrigerator | |
| CN103900311B (en) | Refrigeration system and use the fridge-freezer of this refrigeration system | |
| CN202734383U (en) | Small dual-temperature cold storage water-cooled refrigerator | |
| CN210801680U (en) | Cold and warm dual-purpose air source heat pump system | |
| CN101368777A (en) | Liquid coolant defrosting and refrigeration system | |
| WO2020143777A1 (en) | Defrosting system and refrigerator | |
| CN203478789U (en) | Refrigerator unit and ice storage tank joint refrigerating system | |
| CN209639338U (en) | A kind of freezer water-cooled all-in-one machine | |
| CN202420102U (en) | Integral cooling and heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |