CN105109307A - Refrigerated truck and refrigerating system - Google Patents
Refrigerated truck and refrigerating system Download PDFInfo
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- CN105109307A CN105109307A CN201510622439.2A CN201510622439A CN105109307A CN 105109307 A CN105109307 A CN 105109307A CN 201510622439 A CN201510622439 A CN 201510622439A CN 105109307 A CN105109307 A CN 105109307A
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- compressor
- evaporator
- condenser
- refrigeration system
- defrosting
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Abstract
The invention discloses a refrigerated truck and a refrigerating system. The refrigerating system comprises a compressor, an evaporator, a throttling part, a condenser and a defrosting pipe, wherein an electromagnetic valve is arranged between an output end of the compressor and the defrosting pipe; the other end of the defrosting pipe is connected with the evaporator and the throttling part; the evaporator is connected with an input end of the compressor; and the condenser is connected with the output end of the compressor. The output end of the compressor is divided into two paths; one path is connected with the condenser; and the other path is connected with the defrosting pipe through the electromagnetic valve. The electromagnetic valve can be used for switching a refrigerating mode and a defrosting mode of the system; when the electromagnetic valve is switched on, the compressor is connected with the defrosting pipe to perform defrosting operation; and when the electromagnetic is switched off, the system is in the refrigerating mode and the compressor is connected with the condenser. During defrosting, no refrigerant flows through the condenser; and during refrigerating, no refrigerant flows through the defrosting pipe. Therefore, shutdown operation is not needed in the mode switching process and the defrosting period can be reduced so that the stability of the temperature in a carriage of the refrigerated truck is guaranteed.
Description
Technical field
The present invention relates to refrigeration technology field, specifically, relate to a kind of van cooler, in addition, also relate to the refrigeration system of this van cooler.
Background technology
Improve constantly along with to the requirements for quality of food, medicine, in transportation, ensure that its quality is fresh, that become safely particularly important, therefore, van cooler arises at the historic moment.
At present, Partial Food is when refrigerated transport, require that in the railway carriage or compartment of van cooler, temperature remains on very low state (about-18 DEG C) always, now the evaporating temperature of refrigerating unit evaporator can be lower, be very easy to cause evaporator frosting in process of refrigerastion to be frozen, thus affect heat exchange efficiency, reduce refrigerating capacity and the reliability of refrigerating transport vehicle refrigerating unit, therefore should be able to defrost fast and effectively to refrigerating machine of refrigerated truck group.
During the defrosting mode of existing refrigerating transport vehicle refrigerating unit, refrigeration system is generally by switching four-way cock, the High Temperature High Pressure refrigerant that compressor is discharged, by after four-way cock, flows through defrost pipe and evaporator defrosts, and gets back in compressor more afterwards after throttle part, condenser.
Because the flow direction directly switching refrigerant in system when four-way cock enters defrosting mode from refrigeration mode can change; larger impact can be produced to system; for guaranteeing the reliability of system, need shut down in the front and back of carrying out defrost pattern and carry out four-way cock switching, therefore whole defrost process required time is longer.Needed for system, parts are more in addition, and refrigerant system configurations is more complicated, and fault rate is higher, and cost is more expensive.
Therefore, how shortening defrost periods, to ensure the temperature stabilization in refrigerated vehicle carriage, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the invention provides a kind of refrigeration system, shorten defrost periods, to ensure the temperature stabilization in refrigerated vehicle carriage.Present invention also offers a kind of van cooler with this refrigeration system.
For achieving the above object, the invention provides following technical scheme:
A kind of refrigeration system, comprise compressor, evaporator, throttle part, condenser and defrost pipe, wherein, electromagnetic valve is provided with between the mouth of described compressor and described defrost pipe, the described defrost pipe other end is all connected with described throttle part with described evaporator, described evaporator is connected with the input end of described compressor, and described condenser is connected with the mouth of described compressor.
Preferably, in above-mentioned refrigeration system, also comprise the vapour liquid separator between input end and described evaporator being arranged on described compressor.
Preferably, in above-mentioned refrigeration system, described throttle part is capillary tub.
Preferably, in above-mentioned refrigeration system, described defrost pipe is arranged on bottom the drip tray of described evaporator.
A kind of van cooler, comprise refrigeration system, wherein, described refrigeration system is the refrigeration system as described in above-mentioned any one.
Known via above-mentioned technical scheme, the invention discloses a kind of refrigeration system, comprise compressor, evaporator, throttle part, condenser and defrost pipe, wherein, electromagnetic valve is provided with between the mouth of compressor and defrost pipe, and the other end of defrost pipe is connected with throttle part with evaporator simultaneously, and evaporator is connected with the input end of compressor, and condenser is connected with the mouth of compressor.By above-mentioned setting, the mouth of compressor is divided into two-way, and a road and condenser connect, and electromagnetic valve of separately leading up to is connected with defrost pipe.During use, can be switched the refrigeration mode of this refrigeration system and defrosting mode, when electromagnetic valve opens conducting by electromagnetic valve, compressor is connected with defrost pipe, carries out defrosting work, and when electromagnetic valve disconnects cut-off, system is in refrigeration mode, and compressor is connected with condenser.In whole process, do not have refrigerant to flow through condenser during defrosting, and do not have refrigerant to flow through defrost pipe when cooling, therefore, in switch mode process, do not need shutdown operation, defrost periods can be shortened, to ensure the temperature stabilization in refrigerated vehicle carriage.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The refrigeration system defrosting mode runtime system schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The refrigeration system refrigeration mode runtime system schematic diagram that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
Core of the present invention is to provide a kind of refrigeration system, and shorten defrost periods, to ensure the temperature stabilization in refrigerated vehicle carriage, another core of the present invention is to provide a kind of van cooler with this refrigeration system.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As depicted in figs. 1 and 2, the invention discloses a kind of refrigeration system, comprise compressor 101, evaporator 104, throttle part 103, condenser 102 and defrost pipe 107, wherein, electromagnetic valve 106 is provided with between the mouth of compressor 101 and defrost pipe 107, and the other end of defrost pipe 107 is connected with throttle part 103 with evaporator 104 simultaneously, and evaporator 104 is connected with the input end of compressor 101, and condenser 102 is connected with the mouth of compressor 101.By above-mentioned setting, the mouth of compressor 101 is divided into two-way, and a road and condenser 102 connect, and electromagnetic valve 106 of separately leading up to is connected with defrost pipe 107.During use, can be switched the refrigeration mode of this refrigeration system and defrosting mode by electromagnetic valve 106, when electromagnetic valve 106 opens conducting, compressor 101 is connected with defrost pipe 107, carry out defrosting work, and when electromagnetic valve 106 disconnects cut-off, system is in refrigeration mode, and compressor 101 is connected with condenser 102.In whole process, do not have refrigerant to flow through condenser during defrosting, and do not have refrigerant to flow through defrost pipe 107 when cooling, therefore, in switch mode process, do not need shutdown operation, defrost periods can be shortened, to ensure the temperature stabilization in refrigerated vehicle carriage.
In further embodiment, this refrigeration system also comprises the vapour liquid separator 105 between input end and evaporator 104 being arranged on compressor 101, refrigerant through evaporator 104 can be processed by arranging vapour liquid separator 105, to prevent compressor 101 from occurring liquid hit phenomenon, thus extend the service life of compressor 101.
As shown in Figure 1, for the running state of refrigeration system when defrosting mode, now electromagnetic valve 106 is conducting state, the High Temperature High Pressure refrigerant that compressor 101 is discharged is through electromagnetic valve 106, and then through defrost pipe 107 and evaporator 104, ice on water-receiving tray and near evaporator 104 and frost are melted by the heat of high temperature refrigerant, the refrigerant after defrost is got back in compressor 101 through vapour liquid separator 105 again.During defrosting mode, because the resistance of condenser 102 and throttle part 103 place stream is very large, the High Temperature High Pressure refrigerant that compressor 101 is discharged can not flow through condenser 102 and throttle part 103.
As shown in Figure 2, be the running state of refrigeration system when refrigeration mode, now electromagnetic valve 106 is off condition, and the refrigerant that compressor 101 is discharged, after condenser 102 condensation, carries out refrigeration cool-down through throttle part 103 to evaporator 104.Then refrigerant is got back in compressor 101 through vapour liquid separator 105 again.Because electromagnetic valve 106 is off condition, refrigerant can not flow through defrost pipe 107.
In specific embodiment, throttle part 103 is set to capillary tub, the concrete form of corresponding throttle part 103 can set according to different needs, in practice, also throttle part 103 can be set to flow regulating valve, and all in protection domain.
In further embodiment, defrost pipe 107 is arranged on the bottom of evaporator 104 drip tray, to melt ice and frost that drip tray is formed by condensed water more rapidly and thoroughly, timely discharge condensed water, avoiding the formation of frost blocking discharge port causes frost do not melt for a long time and constantly add up, influential system reliability.
In addition, the application also protects a kind of van cooler, and this van cooler has refrigeration system disclosed in above-mentioned enforcement, and therefore, the van cooler with this refrigeration system also has above-mentioned all technique effects, and this is no longer going to repeat them.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a refrigeration system, comprise compressor (101), evaporator (104), throttle part (103), condenser (102) and defrost pipe (107), it is characterized in that, electromagnetic valve (106) is provided with between the mouth of described compressor (101) and described defrost pipe (107), described defrost pipe (107) other end is all connected with described throttle part (103) with described evaporator (104), described evaporator (104) is connected with the input end of described compressor (101), described condenser (102) is connected with the mouth of described compressor (101).
2. refrigeration system according to claim 1, is characterized in that, also comprises the vapour liquid separator (105) between input end and described evaporator (104) being arranged on described compressor (101).
3. refrigeration system according to claim 1, is characterized in that, described throttle part (103) is capillary tub.
4. refrigeration system according to claim 1, is characterized in that, described defrost pipe (107) is arranged on bottom the drip tray of described evaporator (104).
5. a van cooler, comprises refrigeration system, it is characterized in that, described refrigeration system is the refrigeration system as described in any one of claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622439.2A CN105109307A (en) | 2015-09-24 | 2015-09-24 | Refrigerated truck and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510622439.2A CN105109307A (en) | 2015-09-24 | 2015-09-24 | Refrigerated truck and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105109307A true CN105109307A (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510622439.2A Pending CN105109307A (en) | 2015-09-24 | 2015-09-24 | Refrigerated truck and refrigerating system |
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| Country | Link |
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| CN (1) | CN105109307A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713942A (en) * | 2018-08-14 | 2018-10-30 | 浙江和利制冷设备有限公司 | A kind of portable cold drink displaying storage facilities |
| CN114261260A (en) * | 2021-12-10 | 2022-04-01 | 珠海格力电器股份有限公司 | Refrigerator car condensation side heat dissipation method, control device and refrigerator car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3899897A (en) * | 1974-04-03 | 1975-08-19 | Ford Motor Co | By-pass suction throttling valve in a refrigeration system |
| EP2636550A1 (en) * | 2010-11-01 | 2013-09-11 | Mitsubishi Heavy Industries, Ltd. | Heat-pump vehicular air conditioner and defrosting method thereof |
| CN103900311A (en) * | 2012-12-28 | 2014-07-02 | 珠海格力电器股份有限公司 | Refrigerating system and freezing and refrigerating device using same |
| CN104697251A (en) * | 2013-12-10 | 2015-06-10 | 苏州三星电子有限公司 | Refrigerator and refrigeration system of refrigerator |
| CN205009928U (en) * | 2015-09-24 | 2016-02-03 | 珠海格力电器股份有限公司 | Refrigerator car and refrigerating system thereof |
-
2015
- 2015-09-24 CN CN201510622439.2A patent/CN105109307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3899897A (en) * | 1974-04-03 | 1975-08-19 | Ford Motor Co | By-pass suction throttling valve in a refrigeration system |
| EP2636550A1 (en) * | 2010-11-01 | 2013-09-11 | Mitsubishi Heavy Industries, Ltd. | Heat-pump vehicular air conditioner and defrosting method thereof |
| CN103900311A (en) * | 2012-12-28 | 2014-07-02 | 珠海格力电器股份有限公司 | Refrigerating system and freezing and refrigerating device using same |
| CN104697251A (en) * | 2013-12-10 | 2015-06-10 | 苏州三星电子有限公司 | Refrigerator and refrigeration system of refrigerator |
| CN205009928U (en) * | 2015-09-24 | 2016-02-03 | 珠海格力电器股份有限公司 | Refrigerator car and refrigerating system thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108713942A (en) * | 2018-08-14 | 2018-10-30 | 浙江和利制冷设备有限公司 | A kind of portable cold drink displaying storage facilities |
| CN114261260A (en) * | 2021-12-10 | 2022-04-01 | 珠海格力电器股份有限公司 | Refrigerator car condensation side heat dissipation method, control device and refrigerator car |
| CN114261260B (en) * | 2021-12-10 | 2024-03-26 | 珠海格力电器股份有限公司 | Cooling method and control device for condensation side of refrigerator car and refrigerator car |
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Application publication date: 20151202 |