CN206113391U - Cold chain heat recovery refrigerating system - Google Patents
Cold chain heat recovery refrigerating system Download PDFInfo
- Publication number
- CN206113391U CN206113391U CN201621056532.8U CN201621056532U CN206113391U CN 206113391 U CN206113391 U CN 206113391U CN 201621056532 U CN201621056532 U CN 201621056532U CN 206113391 U CN206113391 U CN 206113391U
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- China
- Prior art keywords
- mouths
- heat recovery
- valve
- refrigerating system
- cold chain
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model relates to a cold chain heat recovery refrigerating system contains compressor, air -cooled condenser, reservoir, first expansion valve and evaporimeter, its characterized in that: be provided with condensation heat recovery heat exchanger, condensation heat recovery heat exchanger adopts the forced air cooling. The utility model discloses a cold chain refrigerating system through can setting up at indoor air -cooled condensation heat recovery heat exchanger, in ambient temperature lower season, not only can retrieve the condensation heat, in addition because indoor ambient temperature can not be too high to condensing pressure higher so that increased compressor power or reduces the refrigerating output in the time of can not leading to the heat recovery. In cold season, outdoor air -cooled condenser out of use, unit when refrigeration can be continuously to indoor heating, because of indoor temperature also can not be too low to can not lead to condensing pressure too low and influence the reliable work of refrigerating system or compressor yet. Especially, to small -size supermarket and convenience store, very valuable.
Description
Technical field
The present invention relates to refrigerating field, in particular to a kind of cold chain heat recovery refrigerating system.
Background technology
The refrigeration system in cold chain field, due to freezing throughout the year, its condensation heat relatively has recovery value, but the condensation for adopting at present
In recuperation of heat mode, it is that condensing units are entered in hot water, then is used by hot water supply user.However, being returned by hot water
Receive, even more high, thus when the hot water of higher temperature is produced, cold chain freezes and is
The compressor horsepower of system is higher, and generally with the rising of hot water temperature, the refrigerating capacity of cold chain refrigeration system is declining.
In addition, the refrigeration system in cold chain field is in non-hot season, particularly in the winter time, ambient temperature or cooling water temperature
It is relatively low, cause condensing pressure too low, so that pressure differential is too little before and after heating power expansion valve, feed flow is short of power, and causes to flow through heating power
The refrigerant flow of expansion valve is drastically reduced, and substantially reduces refrigerating capacity, or even refrigerating plant operating disorders.In addition, most factories
The compressor of family, also has the use requirement of minimum condensing pressure, or even with the difference of evaporating pressure, minimum condensing pressure will
Ask also different.Therefore, it is the reliably working that ensures refrigeration system and compressor, it is necessary to which condensing pressure is implemented to control.
The control method of condensing pressure, prior art mainly have two kinds：
First, cooling water flow or cooling air quantity are controlled, for air-cooled, conventional has：1. fan motor speed change, 2. wind
Valve controls to adjust cooling air delivery, and 3. condensation fan is opened, stops control, and it is higher than 4 DEG C that these methods are applied in long-term ambient temperature
Above occasion is more effective；
2nd, from refrigerant side using bypass control method control refrigerant pressure, concrete connected mode is：In condensator outlet
One septum valve is installed, the other end connection reservoir entrance of septum valve is entered with reservoir in exhaust outlet of compressor
The indirect bypass pipe of mouth, installs differential pressure control valve on bypass pipe.
Utility model content
The purpose of this utility model is to solve the above problems.
The technical solution of the utility model is as follows：
A kind of cold chain heat recovery refrigerating system, comprising compressor, air-cooled condenser, reservoir, the first expansion valve and evaporation
Device, it is characterised in that：Condensing units heat exchanger is provided with, the condensing units heat exchanger is using air-cooled.
Preferential, four-way change-over valve is provided with, the four-way change-over valve has d mouths, e mouths, s mouths, four connectors of c mouths,
And there are two operating positions, when the four-way change-over valve is in first operating position, its d mouth is connected with c mouths and e mouths and s
Mouth connection, when the four-way change-over valve is in second operating position, its d mouth is connected with e mouths and c mouths are connected with s mouths；The pressure
The air vent of contracting machine connects the d mouths of the four-way change-over valve, and the air entry of the compressor connects the s of the four-way change-over valve
Mouthful, the c mouths of the four-way change-over valve connect the air-cooled condenser, and the e mouths of the four-way change-over valve connect the condensation heat and return
Heat exchanger is received, the vaporizer connects the air entry of the compressor；Between the air-cooled condenser and the vaporizer successively
The first check valve, the reservoir, first expansion valve are provided with, the condensing units heat exchanger passes through the second check valve
Connect the reservoir.
Further, liquid pipe electromagnetic valve is additionally provided between the reservoir and first expansion valve.
Further, the connecting pipeline between the reservoir and the liquid pipe electromagnetic valve is provided with bypass line, by this
Siphunculus road connects the connecting pipe between the air-cooled condenser and first check valve through the second expansion valve.
Further, electromagnetic valve is additionally provided with the bypass line.
Further, the evaporator outlet is provided with the 3rd check valve.
Further, device for drying and filtering and liquid-sighting glass are additionally provided between the reservoir and first expansion valve.
Further, gas-liquid separator is provided with the suction line of the compressor.
Further, oil eliminator is provided with the gas exhaust piping of the compressor.
Based on above-mentioned technical proposal, cold chain refrigeration system of the present utility model is air-cooled cold by what is can be disposed in the interior
Solidifying heat recovering heat exchanger, in ambient temperature relatively low season, not only can recovering condensing heat amount, and because indoor environment temperature
Will not be too high, so as to be not result in that condensing pressure is higher so that increasing compressor horsepower or reducing refrigerating capacity during recuperation of heat.Together
When, in cold season, its outdoor condenser is not used, and unit can continue to indoor heating when freezing, because of indoor temperature
Will not be too low, the reliably working of refrigeration system or compressor is affected so as to also be not result in condensing pressure too low.
Description of the drawings
Theory of constitution schematic diagrams of the Fig. 1 for this utility model refrigeration system first embodiment.
Specific embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in figure 1, for the theory of constitution schematic diagram of this utility model refrigeration system first embodiment.
Wherein, the air vent of compressor 10 connects the d mouths of four-way change-over valve 70, and the air entry connection four-way of compressor 10 is changed
To the s mouths of valve 70, the c mouth communication chamber exogenous winds cool condenser 20 of four-way change-over valve 70, the e mouths of four-way change-over valve 70 connect the room
Interior heat recovering heat exchanger 60, vaporizer 50 connect the air entry of compressor 10 by check valve 56；Outdoor air-cooled condenser 20 with
Check valve 26, reservoir 30, electromagnetic valve 41, heating power expansion valve 40, indoor recuperation of heat heat exchange are disposed between vaporizer 50
Device 60 connects the entrance of reservoir 30 by check valve 66.Connecting pipeline between reservoir 30 and electromagnetic valve 41 is provided with bypass
Pipeline, the bypass line sequentially pass through electromagnetic valve 81 and 80 communication chamber exogenous wind cool condenser 20 of heating power expansion valve and check valve 26 it
Between connecting pipe.The direction indication of check valve 26,56,66 is its conducting direction.Also arrange for outdoor air-cooled condenser 20
There is blower fan 21, be that indoor heat recovering heat exchanger 60 is provided with blower fan 61.
During 70 power-off of four-way change-over valve, its d mouth is connected with c mouths and e mouths are connected with s mouths, on four-way change-over valve 70 during electricity, its
D mouths are connected with e mouths and c mouths are connected with s mouths.Vaporizer 50 is used for providing cold for refrigerator.
When compressor 10 runs, 70 power-off of four-way change-over valve, 81 power-off of electromagnetic valve, electromagnetic valve 41 are powered, and blower fan 21 operates,
Blower fan 61 is stalled, then outdoor air-cooled condenser 20 is operated in condensation mode, and vaporizer 50 is operated in evaporation profiles, and this kind of situation is fitted
Preferably apply in summer.
When compressor 10 runs, electricity on four-way change-over valve 70,81 power-off of electromagnetic valve, electromagnetic valve 41 are powered, and blower fan 61 operates,
Blower fan 21 is stalled, then indoor heat recovering heat exchanger 60 is operated in condensation mode, and vaporizer 50 is operated in evaporation profiles, this kind of situation
The suitable season application relatively low in ambient temperature.
When compressor 10 runs, electricity on four-way change-over valve 70, electricity on electromagnetic valve 81,41 power-off of electromagnetic valve, blower fan 61 operate,
Blower fan 21 operates, then indoor heat recovering heat exchanger 60 is operated in condensation mode, and outdoor air-cooled condenser 20 is operated in evaporation profiles,
In the case of this kind, refrigerator is temporarily without refrigeration demand, and indoor environment temperature is very low.Particularly in severe cold season, this kind of mould can be passed through
Formula is indoor heating, supplements the deficiency of air-conditioning heating amount.Effect of the check valve 56 under this kind of pattern is to prevent outdoor air-cooled cold
Coolant in condenser 20 is entered in vaporizer 50, so that the temperature in refrigerator is affected, especially for low-temp. refrigerator.
Finally it should be noted that：Above example is merely to illustrate the technical solution of the utility model rather than which is limited
System, person of an ordinary skill in the technical field should be appreciated that still can be to specific embodiment of the present utility model and application
Occasion or field are modified or carry out equivalence replacement to some technical characteristics.So, without departing from this utility model skill
The spirit of art scheme, should cover in the middle of the technical scheme scope being claimed in this utility model.
Claims (9)
1. a kind of cold chain heat recovery refrigerating system, comprising compressor (10), air-cooled condenser (20), reservoir (30), first swollen
Swollen valve (40) and vaporizer (50), it is characterised in that：
Condensing units heat exchanger (60) is provided with, the condensing units heat exchanger (20) is using air-cooled.
2. a kind of cold chain heat recovery refrigerating system according to claim 1, it is characterised in that：
Four-way change-over valve (70), the total d mouths of the four-way change-over valve (70), e mouths, s mouths, four connectors of c mouths are provided with, and are had
Have two operating positions, the four-way change-over valve (70) in first operating position when, its d mouth is connected with c mouths and e mouths and s
Mouthful connection, the four-way change-over valve (70) in second operating position when, its d mouth is connected with e mouths and c mouths are connected with s mouths；
The air vent of the compressor (10) connects the d mouths of the four-way change-over valve (70), the air entry of the compressor (10)
The s mouths of the four-way change-over valve (70) are connected, the c mouths of the four-way change-over valve (70) connect the air-cooled condenser (20), institute
The e mouths for stating four-way change-over valve (70) connect the condensing units heat exchanger (60), and the vaporizer (50) connects the compression
The air entry of machine (10)；
The first check valve (26), the reservoir are disposed between the air-cooled condenser (20) and the vaporizer (50)
(30), first expansion valve (40), the condensing units heat exchanger (60) connect the storage by the second check valve (66)
Liquid device (30).
3. a kind of cold chain heat recovery refrigerating system according to claim 2, it is characterised in that：
Liquid pipe electromagnetic valve (41) is additionally provided between the reservoir (30) and first expansion valve (40).
4. a kind of cold chain heat recovery refrigerating system according to claim 3, it is characterised in that：
Connecting pipeline between the reservoir (30) and the liquid pipe electromagnetic valve (41) is provided with bypass line, the bypass line
The connecting pipe between the air-cooled condenser (20) and first check valve (26) is connected through the second expansion valve (80).
5. a kind of cold chain heat recovery refrigerating system according to claim 4, it is characterised in that：
Electromagnetic valve (81) is additionally provided with the bypass line.
6. a kind of cold chain heat recovery refrigerating system according to claim 4 or 5, it is characterised in that：
The vaporizer (50) outlet is provided with the 3rd check valve (51).
7. a kind of cold chain heat recovery refrigerating system according to any one of claim 1 to 5, it is characterised in that：
Device for drying and filtering and liquid-sighting glass are additionally provided between the reservoir (30) and first expansion valve (40).
8. a kind of cold chain heat recovery refrigerating system according to any one of claim 1 to 5, it is characterised in that：
Gas-liquid separator is provided with the suction line of the compressor (10).
9. a kind of cold chain heat recovery refrigerating system according to any one of claim 1 to 5, it is characterised in that：
Oil eliminator is provided with the gas exhaust piping of the compressor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056532.8U CN206113391U (en) | 2016-09-17 | 2016-09-17 | Cold chain heat recovery refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621056532.8U CN206113391U (en) | 2016-09-17 | 2016-09-17 | Cold chain heat recovery refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206113391U true CN206113391U (en) | 2017-04-19 |
Family
ID=58520010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621056532.8U Expired - Fee Related CN206113391U (en) | 2016-09-17 | 2016-09-17 | Cold chain heat recovery refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206113391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210822A (en) * | 2018-10-25 | 2019-01-15 | 重庆重通智远空调设备有限公司 | A kind of compound energy heat pump unit and system |
| CN112275237A (en) * | 2020-09-08 | 2021-01-29 | 中国科学院广州能源研究所 | CO2 hydrate method concentration system and method |
-
2016
- 2016-09-17 CN CN201621056532.8U patent/CN206113391U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210822A (en) * | 2018-10-25 | 2019-01-15 | 重庆重通智远空调设备有限公司 | A kind of compound energy heat pump unit and system |
| CN112275237A (en) * | 2020-09-08 | 2021-01-29 | 中国科学院广州能源研究所 | CO2 hydrate method concentration system and method |
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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 |
Granted publication date: 20170419 Termination date: 20190917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |