CN202216443U - Direct-drive split low-temperature refrigerating unit for vehicle - Google Patents
Direct-drive split low-temperature refrigerating unit for vehicle Download PDFInfo
- Publication number
- CN202216443U CN202216443U CN2011202705583U CN201120270558U CN202216443U CN 202216443 U CN202216443 U CN 202216443U CN 2011202705583 U CN2011202705583 U CN 2011202705583U CN 201120270558 U CN201120270558 U CN 201120270558U CN 202216443 U CN202216443 U CN 202216443U
- Authority
- CN
- China
- Prior art keywords
- compressor
- temperature
- liquid
- refrigeration unit
- condenser
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a direct-drive split low-temperature refrigerating unit for a vehicle. The refrigerating unit comprises a compressor, a condenser, a liquid accumulator, a dry filter, a heat exchanger, a thermostatic expansion valve, an evaporator, an exhaust temperature protection probe, an oil separator and a liquid injection solenoid, wherein the compressor pumps a gaseous refrigerant from the evaporator, and compresses the gaseous refrigerant into a high-temperature high-pressure gas; the high-temperature high-pressure gas is delivered into the condenser through the oil separator and condensed into a high-temperature high-pressure liquid refrigerant; the dry filter removes moisture and impurities from the high-temperature high-pressure liquid refrigerant; a low-temperature low-pressure gaseous-liquid mixture is obtained by the throttling and pressure reduction of the expansion valve, and enters the evaporator for evaporation; the gaseous refrigerant enters the compressor for compression; and when the exhaust temperature protection probe detects that the exhaust temperature of the compressor is over-high, the liquid injection solenoid is opened. A wide low-temperature cargo transportation range is realized; and the compressor adopts a liquid injection protection device, so that the service life of the compressor is prolonged.
Description
Technical field
The utility model relates to automobile and uses transport refrigeration unit, relates in particular to a kind of branch body hypothermia Vehicular refrigeration unit that directly drives.
Background technology
Existing automobile refrigerating unit has does not have defrost system; Like Chinese patent " a kind of split type freezing unit " (patent No.: 20080134780.9) disclosed freezing unit (referring to accompanying drawing 1); Its operation principle is such: the exhaust outlet through compressor 1 is sent to condenser 2 with refrigerant gas; Refrigerant gas is condensed into cold-producing medium after reservoir 3, device for drying and filtering 4, heat exchanger 7, heating power expansion valve 5 are sent to evaporimeter 6 and evaporate; Evaporation is accomplished a circulation after heat exchanger 7 is got back to compressor 1.This shows that the refrigeration unit of no defrost system only is applicable to high temperature unit (more than 5 degree), can't satisfy the instructions for use of transfer of cryogenic goods.And increased the automobile refrigerating unit of defrost system, because there is potential safety hazard in compressor 1 unprotect device, system reliability is poor.
The utility model content
The purpose of the utility model is in order to address the above problem, a kind of diversity that can satisfy client's shipping goods to be provided, and temperature required polytropy improves general degree, enlarges the scope of application and the low temperature Vehicular refrigeration unit developed.
The technical scheme that the utility model is taked is:
A kind of branch body hypothermia Vehicular refrigeration unit that directly drives; Cold-producing medium is through pipeline circularly cooling in the loop that compressor, condenser, reservoir, device for drying and filtering, heat exchanger, heating power expansion valve, evaporimeter and compressor form; It is characterized in that also comprise delivery temperature protection probe, oil eliminator and hydrojet magnetic valve, said delivery temperature protection probe is located at the exhaust outlet of compressor; The entrance point of hydrojet magnetic valve is located at the porch of heating power expansion valve; The port of export of hydrojet magnetic valve is located at the exit of evaporimeter, and when delivery temperature protection probe detected the excessive discharge temperature of compressor, the hydrojet magnetic valve was opened.
Further, also comprise Medium voltage switch or circuit breaker, said Medium voltage switch or circuit breaker is controlled the start-stop of the fan of said condenser according to system pressure.
Further, on the pipeline of the rear of said device for drying and filtering, a liquid-sighting glass is set.
Further, also comprise the crankcase pressure control valve, said crankcase pressure control valve is located on the rear pipeline of said evaporimeter.
Further, also comprise gas-liquid separator, said gas-liquid separator is arranged on the place ahead pipeline of compressor.
A kind of beneficial effect that directly drives branch body hypothermia Vehicular refrigeration unit of the utility model is:
Applicability is strong, and the refrigeration wide ranges has satisfied high low temperature (18 degree～+ 15 degree) freight transportation;
Prolong the service life of the fan of condenser, reached energy-conservation effect;
Prolong compressor service life, improved system reliability;
When avoiding unit starting engine is caused overload.
Description of drawings
Accompanying drawing 1 is the structural representation of freezing unit of the prior art;
Accompanying drawing 2 is structural representations of an embodiment of the utility model;
Accompanying drawing 3 is structural representations of another embodiment of the utility model.
Label in the accompanying drawing is respectively:
1. compressor; 2. condenser; 3. reservoir;
4. device for drying and filtering; 5. heating power expansion valve; 6. evaporimeter;
7. heat exchanger; 21. compressor; 22. delivery temperature protection probe;
23. oil eliminator; 24. condenser; 25. Medium voltage switch or circuit breaker;
26. reservoir; 27. device for drying and filtering; 28. liquid-sighting glass;
29. heating power expansion valve; 30. hydrojet magnetic valve; 31. evaporimeter;
32. crankcase pressure control valve; 33. heat exchanger; 34. gas-liquid separator.
The specific embodiment
Below in conjunction with accompanying drawing a kind of specific embodiment of directly driving branch body hypothermia Vehicular refrigeration unit of the utility model is elaborated.
Referring to accompanying drawing 2, compressor 21 constantly aspirates and comes the gaseous refrigerant in the flash-pot 31, and with the gas of its boil down to HTHP; Be condensed into the liquid cold-producing medium of HTHP through being sent to condenser 24 behind the oil eliminator 23; Get into device for drying and filtering 27 then and remove moisture content and impurity, 29 throttling step-downs are the gas-fluid two-phase mixture of low-temp low-pressure through expansion valve again, get into evaporation in the evaporimeter 31; Make gaseous refrigerant get into compressor 21 and compress, accomplish a circulation.Exhaust outlet at compressor 21 is equipped with delivery temperature protection probe 22; When delivery temperature protection probe 22 detects the excessive discharge temperature of compressor 21; Hydrojet magnetic valve 30 is opened, and is used for reducing the air entry temperature of compressor 21, to reach the delivery temperature purpose that reduces compressor 21.Overcome the suitable unicity of prior art like this, realized high low temperature (18 degree ~+15 degree) freight transportation scope, compressor adopts the hydrojet protective device, protection compressor service life.
Referring to accompanying drawing 3; The pipeline place is provided with crankcase pressure control valve 32 at the rear of evaporimeter 31; Cold-producing medium carries out pressure through crankcase pressure control valve 32 to be regulated; Get into gas-liquid separator 34 then liquid refrigerant separated, crankcase pressure control valve 22 can avoid compressor not use for a long time or defrost after (evaporimeter high pressure conditions) engine is caused overload when starting.When compressor 21 defrostings or heating, be condensed into gas-fluid two-phase mixture through evaporator 24, gas-liquid separator 34 can be separated liquid refrigerant, guarantees that the cold-producing medium that gets into compressor 21 is gaseous state, prevents that compressor 21 liquid hammers from causing damage.Medium voltage switch or circuit breaker 25 is directly controlled the start-stop of the fan of condenser 24, and when system pressure overpressure switch 25 setting value aft-fans begin to start, fan quits work when system pressure is lower than pressure switch 25 setting values.The fan of condenser 24 adopts Medium voltage switch or circuit breaker 25 its start-stops of control, and vehicle is when high-speed cruising, and fan is out of service, can prolong fan service life.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. one kind is directly driven branch body hypothermia Vehicular refrigeration unit; Cold-producing medium is through pipeline circularly cooling in the loop that compressor (21), condenser (24), reservoir (26), device for drying and filtering (27), heat exchanger (33), heating power expansion valve (29), evaporimeter (31) and compressor (21) form; It is characterized in that: also comprise delivery temperature protection probe (22), oil eliminator (23) and hydrojet magnetic valve (30); Said delivery temperature protection probe (22) is located at the exhaust outlet of compressor (21); The entrance point of hydrojet magnetic valve (30) is located at the porch of heating power expansion valve (29); The port of export of hydrojet magnetic valve (30) is located at the exit of evaporimeter (31), and when delivery temperature protection probe (22) detected the excessive discharge temperature of compressor (21), hydrojet magnetic valve (30) was opened.
2. a kind of branch body hypothermia Vehicular refrigeration unit that directly drives according to claim 1, it is characterized in that: also comprise Medium voltage switch or circuit breaker (25), said Medium voltage switch or circuit breaker (25) is controlled the start-stop of the fan of said condenser (24) according to system pressure.
3. a kind of branch body hypothermia Vehicular refrigeration unit that directly drives according to claim 1 is characterized in that: on the rear pipeline of said device for drying and filtering (27), a liquid-sighting glass (28) is set.
4. a kind of branch body hypothermia Vehicular refrigeration unit that directly drives according to claim 1, it is characterized in that: also comprise crankcase pressure control valve (32), said crankcase pressure control valve (32) is located on the rear pipeline of said evaporimeter (31).
5. a kind of branch body hypothermia Vehicular refrigeration unit that directly drives according to claim 1, it is characterized in that: also comprise gas-liquid separator (34), said gas-liquid separator (34) is arranged on the place ahead pipeline of compressor (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202705583U CN202216443U (en) | 2011-07-28 | 2011-07-28 | Direct-drive split low-temperature refrigerating unit for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202705583U CN202216443U (en) | 2011-07-28 | 2011-07-28 | Direct-drive split low-temperature refrigerating unit for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216443U true CN202216443U (en) | 2012-05-09 |
Family
ID=46015694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202705583U Expired - Fee Related CN202216443U (en) | 2011-07-28 | 2011-07-28 | Direct-drive split low-temperature refrigerating unit for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202216443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889643A (en) * | 2012-10-29 | 2013-01-23 | 江苏兆胜空调有限公司 | Air conditioner used for cars and ships in ultralow temperature environment and controlling method thereof |
| CN110789300A (en) * | 2019-11-18 | 2020-02-14 | 珠海格力电器股份有限公司 | Refrigerating unit with double evaporators, regulation and control method and new energy refrigerator car |
-
2011
- 2011-07-28 CN CN2011202705583U patent/CN202216443U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889643A (en) * | 2012-10-29 | 2013-01-23 | 江苏兆胜空调有限公司 | Air conditioner used for cars and ships in ultralow temperature environment and controlling method thereof |
| CN110789300A (en) * | 2019-11-18 | 2020-02-14 | 珠海格力电器股份有限公司 | Refrigerating unit with double evaporators, regulation and control method and new energy refrigerator car |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10107526B2 (en) | Switchable two-stage and cascade marine energy-saving ultralow-temperature refrigeration system | |
| CN1818505B (en) | Dynamic ice-making/storing system | |
| CN100533003C (en) | Air source solution heat pump device based on regeneration of reverse osmosis membrane solution | |
| CN200972293Y (en) | Refrigeration system | |
| CN201666696U (en) | Air-conditioner return oil system and air conditioner | |
| CN102745040A (en) | Direct-current driven freezing and refrigerating car | |
| CN103759449B (en) | The two-stage steam compression type circulatory system of dual jet synergy | |
| CN201407856Y (en) | Dual temperature refrigeration cycle system | |
| CN102155815B (en) | Steam jet refrigeration system based on double-fluid | |
| CN201983512U (en) | Stand-by power freezing and refrigerating system of refrigerator car | |
| CN202216443U (en) | Direct-drive split low-temperature refrigerating unit for vehicle | |
| CN106705494A (en) | Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing | |
| CN104132474A (en) | Environment conditioning device for low-temperature laboratory | |
| CN201463433U (en) | Hot air defroster for multi-set parallel evaporator refrigeration system | |
| CN103900311B (en) | Refrigeration system and use the fridge-freezer of this refrigeration system | |
| CN204730506U (en) | The peculiar to vessel energy-conservation ultra-low temperature refrigerating device of a kind of changeable twin-stage and overlapping | |
| CN206322818U (en) | A kind of electric vehicle dynamic cell integrated cooling device | |
| CN202008261U (en) | Independent freezing unit | |
| KR20110116334A (en) | Refrigerator and freezer with subcooler | |
| CN202660806U (en) | Refrigeration equipment with refrigeration and cold accumulation functions | |
| CN203402039U (en) | Refrigeration trailer refrigerating unit | |
| CN206831853U (en) | A kind of outer liquid-spraying type condensation unit | |
| CN101839653A (en) | High-temperature air-cooling refrigerating type compressed air dryer using combined heat exchanger | |
| CN201875831U (en) | Cold energy storage air conditioner | |
| CN209926640U (en) | Hot fluorine defrosting type gas injection enthalpy-increasing freezing and hot water dual supply unit system for refrigeration house |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI SONGZ AUTOMOBILE AIR CONDITIONING CO., LT Effective date: 20120712 Owner name: SUPERCOOL (SHANGHAI) REFRIGERATION EQUIPMENT CO., Free format text: FORMER OWNER: SHANGHAI SONGZ AUTOMOBILE AIR CONDITIONING CO., LTD. Effective date: 20120712 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120712 Address after: 201108 Shanghai City, Minhang District Shen Fu Road No. 888 Building 1 room 101 Co-patentee after: Shanghai Songz Automobile Air Conditioning Co., Ltd. Patentee after: Cool (Shanghai) Refrigeration Equipment Co. Ltd. Address before: 201108 Shanghai Huaning Minhang District Industrial Zone Xhenzhuang Road No. 4999 Patentee before: Shanghai Songz Automobile Air Conditioning Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20190728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |