CN204963267U - Single compressor refrigerating system with steam bypass - Google Patents
Single compressor refrigerating system with steam bypass Download PDFInfo
- Publication number
- CN204963267U CN204963267U CN201520449278.7U CN201520449278U CN204963267U CN 204963267 U CN204963267 U CN 204963267U CN 201520449278 U CN201520449278 U CN 201520449278U CN 204963267 U CN204963267 U CN 204963267U
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- Prior art keywords
- compressor
- evaporimeter
- condenser
- bypass
- pipeline
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a single compressor refrigerating system with steam bypass, high -pressure reservoir, thermostatic expansion valve, evaporimeter and compressor that the condenser that connects gradually including the pipeline is connected, the compressor pass through the connecting line with the condenser is connected, the compressor with be equipped with a tee bend on the connecting line of condenser, from the tee bend extremely be connected with a bypass between the entry of evaporimeter, in the bypass from three -way one end extremely the entry one end of evaporimeter is equipped with normally -closed solenoid valves and steam bypass valve in proper order, the steam bypass valve still through a pipeline with the export pipeline of evaporimeter is connected. Adopt the method of steam bypass to carry out the energy management to refrigerating system to prevent effectively that the compressor from in operation pressure under of breathing in low excessively, satisfying refrigerating system and becoming the performance requirements under the load condition, better satisfy people's demand of warming up of freezing.
Description
Technical field
The utility model belongs to refrigeration and air-conditioning technical field.Specifically a kind of refrigeration system adopting the method for hot-gas bypass to carry out energy hole.
Background technology
Refrigeration & Air-Conditioning technology improves in the national economic development, living standards of the people and has very important effect in defence equipment guarantee, in many refrigeration and air-conditioning system, due to the difference of amblent air temperature, light, personnel and product load, cooling load varies widely, under these circumstances, for meeting the performance of system, energy hole must be carried out to system.
The energy hole of refrigeration system generally has following several mode: compressor intermittent duty; Air-breathing throttling; Hot-gas bypass; , compressor speed change; Compresser cylinder unloads; Compressor operating unit number control.In the middle of practical application, suitably should select according to the specific works requirement of refrigerating plant and compressor configuration situation, it is very economical for adopting the mode of hot-gas bypass to carry out energy adjustment for self not having the single compressor refrigeration system of energy conditioner.
Utility model content
For prior art, the utility model provides a kind of single compressor refrigeration system with hot-gas bypass, the method of hot-gas bypass is adopted to carry out energy hole to refrigeration system, thus effectively prevent compressor from running under too low pressure of inspiration(Pi), meet the performance requirement of refrigeration system under varying load condition, better meet people's cooling/heating demand.
In order to solve the problems of the technologies described above, a kind of single compressor refrigeration system with hot-gas bypass that the utility model proposes, include the high-pressure reservoir of the condenser connection that pipeline connects successively, heating power expansion valve, evaporimeter and compressor, described compressor is connected with described condenser by connecting line, the connecting line of described compressor and described condenser is provided with a threeway, a bypass is connected with between described three entrances passing to described evaporimeter, entrance one end from one end of described threeway to described evaporimeter in described bypass is provided with normally closed solenoid valve and hot gas bypass valve successively, described hot gas bypass valve is also connected with the export pipeline of described evaporimeter by a pipeline.
Compared with prior art, the beneficial effects of the utility model are:
The utility model, by providing a virtual load, namely because have hot-gas bypass to be equivalent to evaporator inlet to add on original load basis an extra load, makes system be unlikely to because load is too low and shut down; When air-conditioning system is run with heating mode winter, the method for the utility model hot-gas bypass can be adopted to defrost to evaporimeter; The utility model is utilized using evaporimeter as a direct mixing chamber, hot gas and liquid to be mixed in evaporimeter fully; Be directly bypassed to compared with air return end, the utility model is by hot-gas bypass to evaporator inlet, thus can reduce the consumption (because being directly bypassed to air return end must increase a liquid injection valve to prevent that compressor exhaust temperature crosses the problems such as high) of accessory; In addition, adopt hot-gas bypass of the present utility model that the flow velocity of cold-producing medium can be made to accelerate, so system has splendid oil return performance; Because the utility model adopts the method before hot-gas bypass to evaporimeter, so compressor motor overheating problem can not be produced, the service life of compressor can not be affected.
Accompanying drawing explanation
Fig. 1 is the structured flowchart that the utility model has the single compressor refrigeration system of hot-gas bypass.
In figure: 1-condenser, 2-high-pressure reservoir, 3-heating power expansion valve, 4-evaporimeter, 5-hot gas bypass valve, 6-normally closed solenoid valve, 7-compressor.
Detailed description of the invention
Be described in further detail technical solutions of the utility model below in conjunction with the drawings and specific embodiments, described specific embodiment only explains the utility model, not in order to limit the utility model.
As shown in Figure 1, a kind of single compressor refrigeration system with hot-gas bypass of the utility model, include the high-pressure reservoir 2 of condenser 1 connection that pipeline connects successively, heating power expansion valve 3, evaporimeter 4 and compressor 7, described compressor 7 is connected with described condenser 1 by connecting line, described compressor 7 is provided with a threeway with the connecting line of described condenser 1, a bypass is connected with between described three entrances passing to described evaporimeter 4, entrance one end from one end of described threeway to described evaporimeter in described bypass is provided with normally closed solenoid valve 6 and hot gas bypass valve 5 successively, described hot gas bypass valve 5 is also connected with the export pipeline of described evaporimeter 4 by a pipeline.
A kind of operation principle with the single compressor refrigeration system of hot-gas bypass of the utility model is: when refrigerant system runs, compressor 7 sucks the low-temperature low-pressure refrigerant gas in evaporimeter 4, high temperature and high pressure gas is discharged after compressor 7 compresses, high temperature and high pressure gas is divided into two-way, one tunnel enters condenser 1, high temperature high pressure liquid is condensed in condenser 1, high temperature high pressure liquid enters high-pressure reservoir 2, becomes Low temperature low pressure liquid enter evaporimeter 4 and normally freeze from high-pressure reservoir 2 liquid out after heating power expansion valve 3 reducing pressure by regulating flow.Along with the continuous change of cooling system load, pressure of inspiration(Pi) constantly changes, when pressure of inspiration(Pi) is reduced to certain value, hot gas bypass valve 5 is opened by pressure of inspiration(Pi) controls, normally closed solenoid valve 6 action simultaneously linked with it, another road gas is then after normally closed solenoid valve 6 and hot gas bypass valve 5 enter heating power expansion valve 3, in pipeline before evaporimeter 4, be equivalent to for system provides a virtual load, ensure to there will not be the pressure of inspiration(Pi) due to compressor 7 too low and the shutdown phenomenon that produces, make the operation that system still can be good under low cooling load state.
Although be described the utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; when not departing from the utility model aim, can also make a lot of distortion, these all belong within protection of the present utility model.
Claims (1)
1. one kind has the single compressor refrigeration system of hot-gas bypass, include the high-pressure reservoir (2) that condenser (1) that pipeline connects successively connects, heating power expansion valve (3), evaporimeter (4) and compressor (7), described compressor (7) is connected with described condenser (1) by connecting line, it is characterized in that, described compressor (7) is provided with a threeway with the connecting line of described condenser (1), a bypass is connected with between described three entrances passing to described evaporimeter (4), entrance one end from one end of described threeway to described evaporimeter in described bypass is provided with normally closed solenoid valve (6) and hot gas bypass valve (5) successively, described hot gas bypass valve (5) is also connected with the export pipeline of described evaporimeter (4) by a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449278.7U CN204963267U (en) | 2015-06-26 | 2015-06-26 | Single compressor refrigerating system with steam bypass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520449278.7U CN204963267U (en) | 2015-06-26 | 2015-06-26 | Single compressor refrigerating system with steam bypass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204963267U true CN204963267U (en) | 2016-01-13 |
Family
ID=55058329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520449278.7U Expired - Fee Related CN204963267U (en) | 2015-06-26 | 2015-06-26 | Single compressor refrigerating system with steam bypass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204963267U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928277A (en) * | 2016-05-06 | 2016-09-07 | 广东美的暖通设备有限公司 | Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner |
| CN107120858A (en) * | 2017-07-06 | 2017-09-01 | 王道均 | The frostless refrigeration system in three sources of intelligence |
| CN107152820A (en) * | 2017-06-19 | 2017-09-12 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN107218742A (en) * | 2017-06-12 | 2017-09-29 | 珠海格力电器股份有限公司 | Heat pump and heat pump control method |
| CN108224823A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | Full load air-conditioning device and its control method |
| CN112833515A (en) * | 2021-01-11 | 2021-05-25 | 珠海格力电器股份有限公司 | Single-cooling type air conditioning unit sterilization control method and air conditioning unit |
-
2015
- 2015-06-26 CN CN201520449278.7U patent/CN204963267U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928277A (en) * | 2016-05-06 | 2016-09-07 | 广东美的暖通设备有限公司 | Control method and system of electromagnetic valve for air conditioner liquid injecting cooling and air conditioner |
| CN105928277B (en) * | 2016-05-06 | 2019-02-15 | 广东美的暖通设备有限公司 | A kind of air-conditioning Liquid injection cooling electromagnetic valve control method, system and air-conditioning |
| CN107218742A (en) * | 2017-06-12 | 2017-09-29 | 珠海格力电器股份有限公司 | Heat pump and heat pump control method |
| CN107152820A (en) * | 2017-06-19 | 2017-09-12 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN107152820B (en) * | 2017-06-19 | 2020-05-29 | 青岛海尔空调器有限总公司 | Air conditioner and control method thereof |
| CN107120858A (en) * | 2017-07-06 | 2017-09-01 | 王道均 | The frostless refrigeration system in three sources of intelligence |
| CN108224823A (en) * | 2018-02-12 | 2018-06-29 | 深圳市亿凌捷科技有限公司 | Full load air-conditioning device and its control method |
| CN112833515A (en) * | 2021-01-11 | 2021-05-25 | 珠海格力电器股份有限公司 | Single-cooling type air conditioning unit sterilization control method and air conditioning unit |
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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 |
Granted publication date: 20160113 Termination date: 20170626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |