CN105444449A - Dual-temperature refrigerating system of single compressor used for refrigerator car - Google Patents
Dual-temperature refrigerating system of single compressor used for refrigerator car Download PDFInfo
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- CN105444449A CN105444449A CN201510246153.9A CN201510246153A CN105444449A CN 105444449 A CN105444449 A CN 105444449A CN 201510246153 A CN201510246153 A CN 201510246153A CN 105444449 A CN105444449 A CN 105444449A
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Abstract
The invention relates to the field of refrigerator cars, in particular to a refrigerating system used for a refrigerator car. According to the dual-temperature refrigerating system of a single compressor used for the refrigerator car, a refrigerant outlet of the compressor is sequentially connected with an oil separator and a condenser in series through a pipeline according to the flow direction sequence of a refrigerant; a crew liquid inlet pipeline of a crew evaporator and a refrigeration house liquid inlet pipeline of a refrigeration house evaporator are connected in parallel and then communicated with an outlet of the condenser through a main cooling liquid pipeline; a crew expansion valve is connected to the crew liquid inlet pipeline in series; a refrigeration house expansion valve is connected to the refrigeration house liquid inlet pipeline in series; a crew exhaust pipeline used for the crew evaporator and a refrigeration house exhaust pipeline used for the refrigeration house evaporator are connected in parallel and then communicated with a refrigerant inlet of the compressor through a suction pipeline; an oil outlet of the oil separator is connected to the suction pipeline through an oil return pipeline in parallel. The refrigerating system has the advantages of being low in oil consumption, capable of reducing cost, easy to install, convenient to use and the like, can be applied to vehicles such as truck platforms and passenger car platforms and is extremely suitable for vehicles with transport bin structures being compact, and the refrigerating efficiency is improved.
Description
Technical field
The present invention relates to refrigerator car field, particularly relate to a kind of refrigeration refrigeration system for vehicle.
Background technology
Current domestic refrigerator car mostly adopts double-compressor refrigeration design, i.e. a set of cab air conditioning system, and a set of container refrigeration system, two cover systems work alone.Often overlap the running of refrigeration system all as shown in Figure 1, high temperature and high pressure gas discharged by compressor 1, enters condenser 2; In condenser 2, high temperature and high pressure gaseous refrigerant condensation, becomes low temperature high pressure gas; After expansion valve 3 throttling, the liquid refrigerant becoming low pressure enters evaporimeter 4, the atmospheric heat flowing through evaporimeter is absorbed in evaporimeter, air themperature is reduced, blowing cold air, produce refrigeration, cold-producing medium itself flashes to low-temp low-pressure gaseous refrigerant because absorbing heat is sucked by compressor by the road, compress, enter next circulation.
Summary of the invention
Technical problem to be solved by this invention is to provide the two temp, refrigerating system of a kind of refrigerator car single compressor, and the needs that this refrigeration system meets two-way refrigeration by a compressor and condenser simultaneously make vehicle structure more simplify, and meet the needs of compact vehicle; Namely utilize oil eliminator by lubricating oil separation out in the starting stage of refrigerant circulation in addition, saved the energy loss of refrigerating circuit, improve refrigerating efficiency.
The present invention is achieved in that the two temp, refrigerating system of a kind of refrigerator car single compressor, comprise compressor, condenser, occupant's expansion valve, freezer expansion valve, occupant's evaporimeter, freezer evaporimeter and oil eliminator, by the flow direction order of cooling agent, the coolant outlet of described compressor is by pipeline oil eliminator in sequential series and condenser, the outlet of cooling fluid main line and condenser is passed through in occupant's water influent pipeline of described occupant's evaporimeter and the freezer water influent pipeline parallel connection of freezer evaporimeter afterwards, described occupant is connected in occupant's water influent pipeline with expansion valve, described freezer expansion valve is connected in freezer water influent pipeline, occupant's gas exhaust piping of described occupant's evaporimeter is communicated with the coolant inlet of compressor with by suction line with after the freezer gas exhaust piping parallel connection of freezer evaporimeter, the oil-out of described oil eliminator is connected in parallel in suction line by return line.
This refrigeration system described is also provided with defroster duct, the entrance point of described defroster duct is connected in parallel on the pipeline between oil eliminator and condenser, the port of export of defroster duct is connected in parallel on downstream freezer water influent pipeline being positioned at freezer evaporimeter, and defroster duct is in series with defrost switch valve.
Described occupant's water influent pipeline is also in series with occupant's switch valve, and described occupant's switch valve is positioned at the upstream of occupant's expansion valve.
Described freezer water influent pipeline is also in series with freezer switch valve, and described freezer switch valve is positioned at the upstream of freezer expansion valve.
Described freezer water influent pipeline is in series with check (non-return) valve.
Described occupant's gas exhaust piping is in series with evaporating pressure regulating valve.
Described cooling fluid main line is also in series with liquid storage dryer.
The two temp, refrigerating system of refrigerator car single compressor of the present invention is the two temp, refrigerating system of a kind of single compressor for refrigerator car, a compressor, condenser, two evaporimeters and a corresponding corollary equipment, utilize temperature controller and control system thereof to refrigerator car and driver's cabin air-conditioning reasonable distribution refrigerating capacity, the refrigeration in refrigeration railway carriage or compartment can be met, the use of driver's cabin air-conditioning can be met again; Have oil consumption low, save cost, the advantages such as simple, easy to use be installed, can apply in the vehicles such as truck platform, passenger vehicle platform, be particularly suitable for the needs sending out the compact vehicle of cabin structure;
In addition in native system, the lubricating oil of compressor directly sets up independent loops by oil eliminator, only has small part just can participate in the circulation of cold-producing medium, improves refrigerating efficiency; Utilize the high-temperature gas after compressor compresses to defrost to freezer evaporimeter in addition, ensure that the refrigerating capacity that freezer refrigerating circulates.
Accompanying drawing explanation
Fig. 1 is the running schematic diagram of existing single cover refrigeration system;
Fig. 2 is the pipeline schematic diagram of the two temp, refrigerating system of refrigerator car single compressor of the present invention;
In figure: 1 compressor, 2 condensers, 3 expansion valves, 4 evaporimeters, 5 oil eliminators, 6 suction line, 7 return lines, 9 liquid storage dryers, 10 defroster ducts, 11 defrost switch valves, 12 check (non-return) valves, 13 evaporating pressure regulating valves, 14 cooling fluid main lines, 31 occupants with expansion valve, 32 freezer expansion valves, 41 occupants with evaporimeter, 42 freezer evaporimeters, 81 occupant's switch valves, 82 freezer switch valves.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's statement.
Embodiment 1
As shown in Figure 2, a kind of refrigerator car two temp, refrigerating system of single compressor, comprise compressor 1, condenser 2, occupant is with expansion valve 31, freezer expansion valve 32, occupant is with evaporimeter 41, freezer evaporimeter 42 and oil eliminator 5, by the flow direction order of cooling agent, the coolant outlet of described compressor 1 is by pipeline oil eliminator 5 in sequential series and condenser 2, described occupant passes through the outlet of cooling fluid main line 14 and condenser 2 afterwards with occupant's water influent pipeline of evaporimeter 41 and the freezer water influent pipeline parallel connection of freezer evaporimeter 42, described occupant is connected in occupant's water influent pipeline with expansion valve 31, described freezer expansion valve 32 is connected in freezer water influent pipeline, described occupant is communicated with by the coolant inlet of suction line 6 with compressor 1 with after occupant's gas exhaust piping of evaporimeter 41 and the freezer gas exhaust piping parallel connection of freezer evaporimeter 42, the oil-out of described oil eliminator 5 is connected in parallel in suction line 6 by return line 7, in the present embodiment, described cooling fluid main line 14 is also in series with liquid storage dryer 9.
Consider that freezer requires higher to refrigerating capacity, and the steam in air can in evaporator surface frosting, the refrigeration performance in freezer region may be affected after evaporimeter frosting, produce ice time serious to block up, evaporimeter was lost efficacy, therefore need to defrost to container evaporimeter, in this enforcement, this refrigeration system described is also provided with defroster duct 10, the entrance point of described defroster duct 10 is connected in parallel on the pipeline between oil eliminator 5 and condenser 2, the port of export of defroster duct 10 is connected in parallel on downstream freezer water influent pipeline being positioned at freezer evaporimeter 42, defroster duct 10 is in series with defrost switch valve 11.
In addition, in the present invention, described occupant's water influent pipeline is also in series with occupant's switch valve 81, described occupant's switch valve 81 is positioned at the upstream of occupant with expansion valve 31; Described freezer water influent pipeline is also in series with freezer switch valve 82, and described freezer switch valve 82 is positioned at the upstream of freezer expansion valve 32.The control to two refrigerating circuit is realized by two switch valves.
In the present invention, because have pressure reduction between the return line of two cooling agents, in order to avoid cooling agent pours in down a chimney, described freezer water influent pipeline is in series with check (non-return) valve 12.
In the present invention, consider that occupant is stronger to temperature sensitivity, need to strengthen thermoregulator precision and scope, described occupant's gas exhaust piping is in series with evaporating pressure regulating valve 13, and evaporating pressure regulating valve 13 can also play check valve simultaneously and avoid cooling agent to pour in down a chimney the effect with two refrigerating circuit assignment of traffic.
In the present invention, together with compressor 1 refrigerator oil used is annotated with cooling agent matchmaker, with system cloud gray model, after oil eliminator 5 is separated, get back to compressor assembly, lubricate compressors assembly, the refrigeration that so just can reduce because refrigerator oil causes imitates loss of energy.
Claims (7)
1. the refrigerator car two temp, refrigerating system of single compressor, it is characterized in that: comprise compressor (1), condenser (2), occupant is with expansion valve (31), freezer is with expansion valve (32), occupant is with evaporimeter (41), freezer evaporimeter (42) and oil eliminator (5), by the flow direction order of cooling agent, the coolant outlet of described compressor (1) is by pipeline oil eliminator in sequential series (5) and condenser (2), described occupant passes through the outlet of cooling fluid main line (14) and condenser (2) afterwards with occupant's water influent pipeline of evaporimeter (41) and the freezer water influent pipeline parallel connection of freezer evaporimeter (42), described occupant is connected in occupant's water influent pipeline with expansion valve (31), described freezer expansion valve (32) is connected in freezer water influent pipeline, described occupant is communicated with by the coolant inlet of suction line (6) with compressor (1) with after occupant's gas exhaust piping of evaporimeter (41) and the freezer gas exhaust piping parallel connection of freezer evaporimeter (42), the oil-out of described oil eliminator (5) is connected in parallel in suction line (6) by return line (7).
2. the refrigerator car as claimed in claim 1 two temp, refrigerating system of single compressor, it is characterized in that: this refrigeration system described is also provided with defroster duct (10), the entrance point of described defroster duct (10) is connected in parallel on the pipeline between oil eliminator (5) and condenser (2), the port of export of defroster duct (10) is connected in parallel on downstream freezer water influent pipeline being positioned at freezer evaporimeter (42), defroster duct (10) is in series with defrost switch valve (11).
3. the refrigerator car as claimed in claim 1 or 2 two temp, refrigerating system of single compressor, it is characterized in that: described occupant's water influent pipeline is also in series with occupant's switch valve (81), described occupant's switch valve (81) is positioned at the upstream of occupant with expansion valve (31).
4. the refrigerator car as claimed in claim 1 or 2 two temp, refrigerating system of single compressor, it is characterized in that: described freezer water influent pipeline is also in series with freezer switch valve (82), described freezer switch valve (82) is positioned at the upstream of freezer expansion valve (32).
5. the refrigerator car as claimed in claim 1 or 2 two temp, refrigerating system of single compressor, is characterized in that: described freezer water influent pipeline is in series with check (non-return) valve (12).
6. the refrigerator car as claimed in claim 1 or 2 two temp, refrigerating system of single compressor, is characterized in that: described occupant's gas exhaust piping is in series with evaporating pressure regulating valve (13).
7. the refrigerator car as claimed in claim 1 or 2 two temp, refrigerating system of single compressor, is characterized in that: described cooling fluid main line (14) is also in series with liquid storage dryer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246153.9A CN105444449A (en) | 2015-05-15 | 2015-05-15 | Dual-temperature refrigerating system of single compressor used for refrigerator car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510246153.9A CN105444449A (en) | 2015-05-15 | 2015-05-15 | Dual-temperature refrigerating system of single compressor used for refrigerator car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105444449A true CN105444449A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510246153.9A Pending CN105444449A (en) | 2015-05-15 | 2015-05-15 | Dual-temperature refrigerating system of single compressor used for refrigerator car |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532388A (en) * | 2018-11-26 | 2019-03-29 | 朱士政 | A kind of vehicle-mounted refrigerator central control system of new energy |
| CN110001913A (en) * | 2019-04-19 | 2019-07-12 | 合肥天鹅制冷科技有限公司 | A kind of full-automatic cold storage plant in naval vessel based on PLC control system |
| 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 |
| CN112880217A (en) * | 2021-01-28 | 2021-06-01 | 扬州恒德工业科技有限公司 | Double-temperature cold water system |
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| DE10259827B3 (en) * | 2002-12-19 | 2004-07-29 | Webasto Thermosysteme International Gmbh | Cooling system for automobile has cooling medium fed between 2 cooling circuits via venturi jet device for obtaining reduced pressure in one cooling circuit |
| CN1607123A (en) * | 2003-09-08 | 2005-04-20 | 东芝开利株式会社 | Refrigerating apparatus for use in a refrigerator car |
| CN1687672A (en) * | 2005-06-02 | 2005-10-26 | 上海大洋制冷工程有限公司 | One refrigerating unit for cooling two places in refrigerator car |
| CN201311126Y (en) * | 2008-12-02 | 2009-09-16 | 柳州五菱汽车工业有限公司 | Refrigerator of refrigerator car |
| KR20150073824A (en) * | 2014-07-09 | 2015-07-01 | 오텍캐리어냉장 유한회사 | Apparatus and Method for Freezing-Air Cooling System Control in Truck Refrigerator |
| CN204718170U (en) * | 2015-05-15 | 2015-10-21 | 上海汽车集团股份有限公司 | The refrigerator car two temp, refrigerating system of single compressor |
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2015
- 2015-05-15 CN CN201510246153.9A patent/CN105444449A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10259827B3 (en) * | 2002-12-19 | 2004-07-29 | Webasto Thermosysteme International Gmbh | Cooling system for automobile has cooling medium fed between 2 cooling circuits via venturi jet device for obtaining reduced pressure in one cooling circuit |
| CN1607123A (en) * | 2003-09-08 | 2005-04-20 | 东芝开利株式会社 | Refrigerating apparatus for use in a refrigerator car |
| CN1687672A (en) * | 2005-06-02 | 2005-10-26 | 上海大洋制冷工程有限公司 | One refrigerating unit for cooling two places in refrigerator car |
| CN201311126Y (en) * | 2008-12-02 | 2009-09-16 | 柳州五菱汽车工业有限公司 | Refrigerator of refrigerator car |
| KR20150073824A (en) * | 2014-07-09 | 2015-07-01 | 오텍캐리어냉장 유한회사 | Apparatus and Method for Freezing-Air Cooling System Control in Truck Refrigerator |
| CN204718170U (en) * | 2015-05-15 | 2015-10-21 | 上海汽车集团股份有限公司 | The refrigerator car two temp, refrigerating system of single compressor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532388A (en) * | 2018-11-26 | 2019-03-29 | 朱士政 | A kind of vehicle-mounted refrigerator central control system of new energy |
| CN109532388B (en) * | 2018-11-26 | 2022-02-01 | 朱士政 | Vehicle-mounted refrigerator central control system for new energy |
| CN110001913A (en) * | 2019-04-19 | 2019-07-12 | 合肥天鹅制冷科技有限公司 | A kind of full-automatic cold storage plant in naval vessel based on PLC control system |
| CN110001913B (en) * | 2019-04-19 | 2024-01-12 | 合肥天鹅制冷科技有限公司 | Full-automatic ship refrigerating device based on PLC control system |
| 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 |
| CN112880217A (en) * | 2021-01-28 | 2021-06-01 | 扬州恒德工业科技有限公司 | Double-temperature cold water system |
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Application publication date: 20160330 |
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