CN203402039U - Refrigeration trailer refrigerating unit - Google Patents
Refrigeration trailer refrigerating unit Download PDFInfo
- Publication number
- CN203402039U CN203402039U CN201320423694.0U CN201320423694U CN203402039U CN 203402039 U CN203402039 U CN 203402039U CN 201320423694 U CN201320423694 U CN 201320423694U CN 203402039 U CN203402039 U CN 203402039U
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- unit
- electrical generator
- refrigeration system
- refrigerating unit
- refrigerated trailer
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Abstract
The utility model belongs to the technical field of conveying freezing and refrigeration and discloses a refrigeration trailer refrigerating unit. The refrigeration trailer refrigerating unit comprises an electric generator power system and a refrigerating system. The electric generator power system comprises an engine and an electric generator. The electric generator power system and the refrigerating system are integrated into a complete machine, the engine drives the electric generator to generate electricity, and the electric generator supplies electric power to the refrigerating system. According to the refrigeration trailer refrigerating unit, the engine, the electric generator and the refrigerating system are integrated into the complete machine, components which need to be maintained are reduced, and unit performance is more stable.
Description
Technical field
The utility model belongs to transportation freezing and refrigeration technical field, particularly a kind of refrigerated trailer refrigerating unit.
Background technology
In existing transportation freezing and refrigeration technology, freezing and refrigeration refrigerating unit mainly contains dependent formula refrigeration unit and two kinds of modes of stand-alone refrigerated unit.The refrigeration system of dependent formula refrigeration unit connects belt drive by the driving engine of lorry, and compressor is installed and is subject to machinery space space constraint, and power is restricted, and is generally applicable to the unit that refrigerating capacity is little; And the lorry engine speed in way that travels changes, changed also greatly by cold that this affects refrigerating unit, often can not satisfied temperature control high goods transport and the demand of refrigerating capacity greatly of requiring.
The engine drive that the refrigeration system of stand-alone refrigerated unit carries by unit, power and corresponding refrigerating capacity are not affected by lorry power system, so be suitable for the goods transport high to temperature control requirement, can meet the demand of large refrigerating capacity yet.Stand-alone refrigerated unit is divided into two types, and a kind of is traditional mechanical type, and driving engine connects belt drive refrigerating compressor, separately configures the need for electricity that a small low-voltage electrical generator generates electricity to meet control system or blower fan; Another kind is independent generator set formula, independently engine driven generators generating, and the electricity sending drives refrigerating compressor.Existing mechanical type independence unit, by connecting the belt of electrical generator, come drive compression machine, condenser fan or evaporating fan, intermediate demand power-transfer clutch transmits, and produces mechanical drive loss and power-transfer clutch fragile, small-sized low voltage electrical generator is by belt drive, and reliability reduces; And vibrations and noise that mechanical drive produces are larger, be difficult to thoroughly solve; And need to regularly stop refrigerating function and carry out hot gas defrost, cause large temperature fluctuation to inside, boxcar.Also the generator set formula independence unit having, generator set and refrigeration system are separated, and by electric wire, couple together, and need two installing spaces; Generator set is generally arranged on compartment below, and easily by rainwater or addle splash, generator performance and reliability are influenced and reduce.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of refrigerated trailer refrigerating unit, by changing the mounting structure of electrical generator power system and refrigeration system, makes the maintaining of unit convenient.
The technical scheme that the utility model is taked is:
A kind of refrigerated trailer refrigerating unit, comprise electrical generator power system and refrigeration system, it is characterized in that: described electrical generator power system comprises driving engine and electrical generator, described electrical generator power system and described refrigeration system are incorporated in a complete machine, the generating of described engine driven generators, described electrical generator provides electric power for described refrigeration system.
Further, described driving engine is connected with described electrical generator by coupler, and described electrical generator power system also comprises engine cooling unit and electrical generator cooling unit, and described engine cooling unit and electrical generator cooling unit are water cooling unit.
Further, described refrigeration system comprises compressor, evaporator and condensation fan, is furnished with many electric heating tubes in described evaporator core.
Further, described refrigerating unit also comprises standby electric power interface, and described standby electric power interface is powered by industrial power.
Further, described refrigeration system is single evaporator refrigeration system or Dual-evaporator refrigeration system.
Further, described refrigeration system comprises high voltage protective unit, low-voltage variation unit, overtemperature prote unit, over-current protecting unit, overload protection unit, automatically commutation unit.
Further, described condensation fan is stepless speed regulating blower fan.
Further, described evaporator core is provided with overtemperature switch, controls the heating-up temperature of described electric heating tube by described overtemperature switch.
Further, described many electric heating tubes are evenly arranged in described evaporator core.
The beneficial effects of the utility model are:
(1) driving engine, electrical generator and refrigeration system are incorporated in a complete machine, make to need the parts of safeguarding to reduce, and unit performance is more stable;
(2) in evaporator, electric heating tube is set, when needed evaporator is defrosted;
(3) each protected location guarantees the safety of refrigeration system;
(4) when standby electric power interface makes trailer in storehouse, use industrial power, reduce the working loss of unit.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation think of figure of electrical generator power system of the present utility model;
Accompanying drawing 2 is structural representations of refrigeration system of the present utility model.
Label in accompanying drawing is respectively:
1. driving engine; 2. electrical generator;
3. coupler; 4. generator heat-radiation device;
5. engine radiator; 6. pump;
7. pump; 11. compressors;
12. bumpers; 13. check valves;
14. condensers; 15. condensation fans;
16. fluid reservoirs; 17. devices for drying and filtering; ,
18. liquid-sighting glass; 19. gas-liquid separators;
20. electromagnetic valves; 21. expansion valves;
22. evaporation fans; 23. evaporators;
24. bumpers; 25. low tension switches;
26. high-voltage switch gears; 27. electromagnetic valves;
28. electromagnetic valves; 29. low pressure sensors;
30. high pressure sensors; 31. refrigerant joints;
32. refrigerant joints; 33. refrigerant joints;
34. electromagnetic valves; 35. expansion valves;
36. evaporators; 37. evaporation fans;
38. refrigerant joints.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the utility model refrigerated trailer refrigerating unit is elaborated.
Refrigerated trailer refrigerating unit comprises electrical generator power system and refrigeration system, and electrical generator power system and refrigeration system are incorporated in a complete machine.Electrical generator power system comprises driving engine and electrical generator, engine driven generators generating, and electrical generator electric energy drives the motor driven compressor of refrigeration system to freeze.The structure of its integrated, the parts that maintain that make to need repairing greatly reduce, and unit performance is more stable, and maintaining is more simple and convenient, and refrigerating efficiency is high, and oil consumption is low, more economizes over-the-road expense.
Referring to accompanying drawing 1, electrical generator power system, by driving engine 1, electrical generator 2 and composition of the control system, starts motor-driven 1 by coupler 3, to be connected transferring power with electrical generator 2, control system control engine 1 and electrical generator 2 work.Driving engine 1 is furnished with engine cooling unit 5, and cooling to driving engine 1 realized by pump 7 in engine cooling unit 5.Engine cooling unit 5 can adopt water-cooling system, and pump 7 adopts water pump.Electrical generator 2 is furnished with electrical generator cooling unit 4, and electrical generator cooling unit 4 is realized cooling to electrical generator 2 by pump 6.Electrical generator cooling unit 4 can adopt water-cooling system, and pump 6 adopts water pump.Engine cooling and electrical generator are cooling is independently, is independent of each other.
This unit also has standby Electricity Functional, is equipped with standby electric power interface, and after trailer warehouse-in, standby electric power interface is connected to industrial power power supply, driving engine 1 and electrical generator 2 with and cooling unit separately quit work.
Referring to accompanying drawing 2, refrigeration system is by electric drive, and it comprises the compositions such as compressor 11, bumper 12 and bumper 24, check valve 13, condenser 14, fluid reservoir 16, device for drying and filtering 17, liquid-sighting glass 18, gas-liquid separator 19, expansion valve 21 and expansion valve 35, evaporator 23 and evaporator 36, condensation fan 15, evaporation fan 22 and evaporation fan 37, electromagnetic valve 27 and electromagnetic valve 28, electromagnetic valve 20, electromagnetic valve 34, low tension switch 25, high-voltage switch gear 26, low pressure sensor 29, high pressure sensor 30, refrigerant joint 31,32,33,38.Refrigeration system is also controlled by control system.On evaporator 23 core bodys, be furnished with several electric heating tubes, play defrosting or heating, when unit judgement need to defrost, start electro heat, stop refrigerating function simultaneously, when judgement complete machine need to start heating function, start electro heat.
Refrigeration system can be designed to single evaporator systems and dual-evaporator system, and refrigeration system comprises high voltage protective, low-voltage variation, overtemperature prote, overcurrent protection, overload protection, the automatic commutation function of tool.Refrigerating unit unloads operation function while having large load, protection refrigeration system.Refrigerating unit condensation fan can be adjusted wind speed by Intelligent electrodeless according to load, and efficiency is higher, and noise is lower.One heat exchanger is set, for supercooled liquid refrigerant and lifting suction temperature in the gas-liquid separator before motor driven compressor aspirate tube.Electric heating tube is evenly arranged in evaporator core; Meanwhile, be provided with overtemperature switch, guarantee that core body is unlikely overheated when defrosting operating condition.
Concrete operational process is that, during refrigeration, the work of engine power generation power system, for refrigeration system provides electric power; Electromagnetic valve 20 is conducting state, gas coolant after the interior evaporation endothermic of evaporator 23, through gas-liquid separator 19, be inhaled into compressor 11 inlet chambers, discharge after compression exhausr port, high temperature and high pressure gas enters condenser 14 through check valve 13, the refrigerant liquid that is cooled to cryogenic high pressure, enters fluid reservoir 16, and drying filter 17 and liquid-sighting glass 18 flow to gas-liquid separator 19 afterwards, carry out heat exchange with evaporator low temperature refrigerant vapor out, by further excessively cold; The electromagnetic valve 20 of flowing through afterwards, after heating power expansion valve 21 reducing pressure by regulating flows, becomes the liquid coolant of low-temp low-pressure, the interior copper pipe of evaporator 23 heat exchange core bodies of flowing through again, evaporation absorbs the heat of the core body copper pipe outer air of flowing through, and becomes low-temp low-pressure gas coolant, is sucked afterwards by compressor again.This process loops, and realizes and continues refrigeration.While heating, the work of engine power generation power system, provides electric power for tubular electric heating element heats; Condensation fan 15 is closed, and evaporation fan 22 is opened, and whole compression refrigerating system is closed, and the startup of Special electrical heating pipe enters heated condition.During defrost, the work of engine power generation power system, for tubular electric heating element heating and defrosting provides electric power; Evaporation fan 22 is closed, and whole compression refrigerating system is closed, and electric heating tube startup enters defrost state.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a refrigerated trailer refrigerating unit, comprise electrical generator power system and refrigeration system, it is characterized in that: described electrical generator power system comprises driving engine and electrical generator, described electrical generator power system and described refrigeration system are incorporated in a complete machine, the generating of described engine driven generators, described electrical generator provides electric power for described refrigeration system.
2. refrigerated trailer refrigerating unit according to claim 1, it is characterized in that: described driving engine is connected with described electrical generator by coupler, described electrical generator power system also comprises engine cooling unit and electrical generator cooling unit, and described engine cooling unit and electrical generator cooling unit are water cooling unit.
3. refrigerated trailer refrigerating unit according to claim 1, is characterized in that: described refrigeration system comprises compressor, evaporator and condensation fan, is furnished with many electric heating tubes in described evaporator core.
4. according to the refrigerated trailer refrigerating unit described in any one in claims 1 to 3, it is characterized in that: described refrigerating unit also comprises standby electric power interface, described standby electric power interface is powered by industrial power.
5. according to the refrigerated trailer refrigerating unit described in any one in claims 1 to 3, it is characterized in that: described refrigeration system is single evaporator refrigeration system or Dual-evaporator refrigeration system.
6. according to the refrigerated trailer refrigerating unit described in any one in claims 1 to 3; it is characterized in that: described refrigeration system comprises high voltage protective unit, low-voltage variation unit, overtemperature prote unit, over-current protecting unit, overload protection unit, automatically commutation unit.
7. refrigerated trailer refrigerating unit according to claim 3, is characterized in that: described condensation fan is stepless speed regulating blower fan.
8. refrigerated trailer refrigerating unit according to claim 3, is characterized in that: described evaporator core is provided with overtemperature switch, controls the heating-up temperature of described electric heating tube by described overtemperature switch.
9. refrigerated trailer refrigerating unit according to claim 3, is characterized in that: described many electric heating tubes are evenly arranged in described evaporator core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423694.0U CN203402039U (en) | 2013-07-17 | 2013-07-17 | Refrigeration trailer refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320423694.0U CN203402039U (en) | 2013-07-17 | 2013-07-17 | Refrigeration trailer refrigerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203402039U true CN203402039U (en) | 2014-01-22 |
Family
ID=49937979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320423694.0U Expired - Fee Related CN203402039U (en) | 2013-07-17 | 2013-07-17 | Refrigeration trailer refrigerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203402039U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10823476B2 (en) | 2016-04-05 | 2020-11-03 | Carrier Corporation | Engineless transport refrigeration unit |
| CN112706579A (en) * | 2020-09-10 | 2021-04-27 | 徐州品上空调科技有限公司 | Electric air conditioning device for engineering machinery |
-
2013
- 2013-07-17 CN CN201320423694.0U patent/CN203402039U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10823476B2 (en) | 2016-04-05 | 2020-11-03 | Carrier Corporation | Engineless transport refrigeration unit |
| US11898786B2 (en) | 2016-04-05 | 2024-02-13 | Carrier Corporation | Engineless transport refrigeration unit |
| CN112706579A (en) * | 2020-09-10 | 2021-04-27 | 徐州品上空调科技有限公司 | Electric air conditioning device for engineering machinery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20210717 |