CN203605512U - Air-cooling type compression condensing unit with supercooled gas-liquid separator - Google Patents
Air-cooling type compression condensing unit with supercooled gas-liquid separator Download PDFInfo
- Publication number
- CN203605512U CN203605512U CN201320714272.9U CN201320714272U CN203605512U CN 203605512 U CN203605512 U CN 203605512U CN 201320714272 U CN201320714272 U CN 201320714272U CN 203605512 U CN203605512 U CN 203605512U
- Authority
- CN
- China
- Prior art keywords
- gas
- liquid separator
- pressure refrigerant
- condenser
- air
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides an air-cooling type compression condensing unit with a supercooled gas-liquid separator. The air-cooling type compression condensing unit comprises the gas-liquid separator with the backheating function, a compressor, a condenser, a fan assembly, a coiled tube type supercooler, a regulating valve, a throttling device and a refrigerant pipeline. The compressor is connected with the condenser. One path of the condenser is connected to the coiled tube type supercooler, and the other path of the condenser is connected with the throttling device through the regulating valve. One path of the coiled tube type supercooler is connected to the position between the regulating valve and the throttling device. One path of the gas-liquid separator with the backheating function is connected with the compressor, and the other path of the gas-liquid separator with the backheating function is connected with an evaporator. The air-cooling type compression condensing unit is simple in structure, easy to manufacture, low in cost, free of power consumption, and capable of improving the degree of supercooling of a refrigerant and guaranteeing that all the refrigerants entering the throttling device is liquid, thereby improving the throttling effect and guaranteeing stable operation of the throttling device.
Description
Technical field
The utility model relates to a kind of by making the excessively cold air-cooled Condensing units of condenser side cold-producing medium with return-air heat exchange, belongs to refrigeration technology field.
Background technology
Increasingly extensive along with refrigeration and air-conditioning technical application, refrigerated air-conditioning system has become an indispensable part in our life.The energy consumption of refrigerated air-conditioning system is very surprising, and this causes mainly due to the refrigerated air-conditioning system of China and low and awareness of saving energy weakness citizen of the efficiency of equipment.In the today of vigorously advocating energy-saving and emission-reduction, adopt an effective measure, reduce energy resource consumption, development low-carbon economy, be the main target of refrigerating and air conditioning industry, research the energy-conservation of refrigeration air-conditioner has Great significance to country and individual.
Affect the many factors of refrigeration plant performance, wherein restriction effect is a key factor that affects refrigeration plant operational effect, and the quality of restriction effect directly has influence on refrigerating capacity.And refrigerant condition has the greatest impact to restriction effect before entering throttling, if enter cold-producing medium before throttling arrangement in Gas-liquid phase region, throttling capacity will decline, and the refrigerant quality entering in evaporimeter reduces, and refrigerating capacity declines.This kind of phenomenon mainly appears at condenser apart from throttling arrangement refrigeration plant far away, as the most serious in this problem in multi-connected machine.Multi-connected machine mainly carries out throttling by indoor equipment in the time freezing summer, even and from outside condenser cold-producing medium out in saturated liquid state or low degree of supercooling state, arriving behind indoor to be also gas-liquid two-phase state when endothermic gasification causes entering throttling arrangement on the way, thereby has a strong impact on refrigeration.
For cold-producing medium before avoiding throttling is in Gas-liquid phase region, air-cooled Condensing units generally adopts and increases heat exchanger area or set up regenerator and improve degree of supercooling.The scheme that increases heat exchange area generally has several method.The one, by increasing the heat exchange area of condenser, this kind of scheme not only needs to increase manufacturing cost but also the more difficult control of degree of supercooling, and range of application is narrower.The 2nd, set up the heat transmission equipments such as plate changes, double pipe at condensator outlet place, the cold-producing medium of the part that low-temperature receiver in this scheme is normally drawn from condensator outlet after throttling cooling, before throttling, there is the object compared with big supercooling degree although reached, but loss the refrigeration of part of refrigerant in indoor, therefore the energy-saving effect of this kind of scheme is lower.The 3rd, set up separately regenerator, scheme generally has bushing type or coiled, this scheme is normally carried out heat exchange by the low-temperature refrigerant of the high temperature refrigerant of condenser side and vaporizer side, can improve like this degree of supercooling and the degree of superheat simultaneously, but this scheme need to be set up separately heat exchanger, increase and manufacture and maintenance cost.
For making up the various shortcomings in above scheme, on market, develop a kind of device excessively cold in gas-liquid separator, the manufacturing cost of this kind of relative minimizing equipment of device, can reach again the object that improves degree of supercooling and the degree of superheat simultaneously.As patent No. ZL201210157400 " gas-liquid separator with backheating function and be applied in the method in air-conditioning unit ", this gas-liquid separator comprised heat passage and crossed cold path, crossing heat passage has and refrigerant vapour is introduced to air inlet pipe in gas-liquid separator and by the escape pipe of refrigerant vapour drainage gas-liquid separator, cross cold path have be positioned at one or more supercooling tubes of gas-liquid separator and with introduce the refrigerant vapour of gas-liquid separator and carry out heat exchange, thereby realize overheated and refrigerant liquid excessively cold of refrigerant vapour, effectively promote sky and put forward unit refrigeration, heat performance and the efficiency of circulation, can be widely used on air-conditioning unit.But this kind of scheme is more difficult to degree of supercooling and degree of superheat control, do not reach the degree of superheat and degree of supercooling that user needs, the large wasted work that easily increases compressor of for example degree of superheat, affects the service life of compressor, thereby causes the waste of the energy.
Summary of the invention
For the deficiency of above-mentioned various schemes, the utility model provides a kind of gas-liquid separator with backheating function and degree of supercooling and the degree of superheat controlled air-cooled condensate compressor group.Both can reach degree of supercooling and the degree of superheat required in system by the degree of superheat in control system and degree of supercooling, capable of reducing energy consumption again.
The technical solution adopted in the utility model is as follows:
The air-cooled Condensing units that a kind of gas-liquid separator is excessively cold, comprise gas-liquid separator, compressor, condenser, fan assembly, coiled subcooler, control valve, throttling arrangement and refrigerant tubing with backheating function, compressor is connected with condenser, condenser one road is connected to coiled subcooler, and the control valve of separately leading up to is connected with throttling arrangement; Described coiled subcooler Yi road is connected between control valve and throttling arrangement; Described gas-liquid separator one tunnel with backheating function is connected with compressor, and another road is connected with evaporimeter.
Further, the described gas-liquid separator with backheating function comprises housing, low pressure refrigerant vapor import, low pressure refrigerant vapor outlet, high pressure refrigerant liquid import, high-pressure refrigerant outlet and heat exchange coil, wherein, low pressure refrigerant vapor import and low pressure refrigerant vapor outlet are positioned at the upper end of housing perpendicular with housing plane, high pressure refrigerant liquid import, high-pressure refrigerant outlet and heat exchange coil are positioned at the bottom of gas-liquid separator, and described high pressure refrigerant liquid import and high-pressure refrigerant outlet are communicated with heat exchange coil.
Further, described heat exchange coil is S type coil pipe, and the front and back of coil pipe are also separately installed with knockout and liquid trap.
After high temperature refrigerant heat exchange in low-temperature refrigerant and coil heat exchanger in the utility model gas-liquid separator, reach and enter compressor after certain degree of superheat and compress.High temperature refrigerant after compressor compression enters in condenser, under the effect of fan assembly with outdoor air heat exchange condensation, divide two-way from condenser cold-producing medium out, the low-temperature refrigerant that one tunnel enters in coil exchanger and gas-liquid separator carries out heat exchange, reached cold, then another road cold-producing medium converges with cold-producing medium excessively cold in coil pipe through flow control valve, then enters in throttling arrangement.
The utility model scheme is identical with scheme and operation principle in background technology patent in the method that realizes system degree of supercooling.Due to the refrigerant liquid of separating in the cold-producing medium not circulating in can scratch system in gas-liquid separator or unsaturated steam, therefore this programme is arranged on the coil pipe of heat exchange the bottom of gas-liquid separator, to reach the object that improves heat exchange rate, efficiency.If cooling system ability is larger, knockout and liquid trap need to be installed before and after coil pipe to improve heat exchange rate.
In order to reach the controlled object that has reduced energy waste of degree of supercooling and the degree of superheat, this practical scheme is set up refrigerant bypass road (this bypass cold-producing medium is not through excessively cold) between condenser and throttling arrangement.Cold-producing medium circulation scheme between condenser and throttling arrangement is, cold-producing medium divides two-way by three-way device from condenser flows out, and a road enters carried out coldly in gas-liquid separator, then converge and enter throttling arrangement with the excessively not cold cold-producing medium of bypass.The control valve that is arranged on bypass by adjusting regulates the flow of cold-producing medium to enter refrigerant amount excessively cold in gas-liquid separator to reach to regulate, in system, regulate as required both ratios to reach degree of supercooling and the degree of superheat in system, thereby improved air-conditioning unit refrigeration, heat performance and the efficiency of circulation.
The utility model scheme beneficial effect:
1. this New Scheme is simple in structure, easy to manufacture, and cost is low, does not need consumption of power.
2. can improve the degree of supercooling of cold-producing medium, the cold-producing medium that guarantees to enter in throttling arrangement is liquid entirely, thereby improves restriction effect, protection throttling arrangement steady operation.
3. high-pressure side cold-producing medium and the heat exchange of gas-liquid separator low-pressure side cold-producing medium; can be good at making low-pressure side cold-producing medium to carry out gas-liquid separation; improve low-pressure side refrigerant superheat degree; improve the gettering ability of press; prevent that liquid refrigerant from entering compressor and forming liquid hit phenomenon; thereby protection compressor, the service life of improving unit.
4. the gettering ability of degree of supercooling and press improves refrigerating capacity and the coefficient of refrigerating performance that can improve system, improves the service ability of unit.
5. degree of supercooling and the degree of superheat are controlled reduces energy waste, improves the protection to compressor.
Accompanying drawing explanation
Fig. 1 is the air-cooled condensate compressor group system circulation theory figure with the gas-liquid separator of backheating function.
Fig. 2 is the structure of gas liquid separator figure with backheating function.
The specific embodiment
Be that example is described in further details this New Scheme below in conjunction with accompanying drawing and the example that freezes summer:
Fig. 1 is the systemic circulation schematic diagram of gas-liquid separator with the air-cooled Condensing units of backheating function, wherein each several part assembly is: gas-liquid separator body 1, compressor 2, condenser 3, fan assembly 4, coiled subcooler 5, control valve 6, throttling arrangement 7, each parts are connected by refrigerant tubing.
The operating scheme of unit is: high-pressure side refrigerant: when refrigeration, cold-producing medium enters in condenser 3 after compressor 2 compressions, the air that cold-producing medium is sent here with fan assembly 4 in condenser 3 carries out heat exchange, cold-producing medium out divides two-way, one tunnel enter in coiled subcooler 5 with gas-liquid separator 1 in low-temperature refrigerant carry out heat exchange cooling, the logical cold-producing medium in another roadside is without excessively cold, from coil heat exchanger, cold-producing medium out and bypass-side cold-producing medium enter throttling arrangement 7 after converging, system can regulate degree of supercooling and the degree of superheat by the control valve 6 of bypass trackside as the case may be, for example, when degree of supercooling is during lower than the required degree of supercooling of system, the valve of control valve 6 is turned down, now will increase through the cold-producing medium in coil pipe subcooler 5, degree of supercooling in system will improve, on the contrary, control valve 6 valves are tuned up reduction degree of supercooling.Low-pressure side refrigerant: enter gas-liquid separator 1 and carry out gas-liquid separation interior from vaporizer side cold-producing medium out, carry out heat exchange evaporation in the liquid refrigerant while of bottom with the high temperature refrigerant in coil pipe because gravity sinks, the cryogenic gaseous cold-producing medium in gas-liquid separator 1 out enters afterwards compressor 2 and compresses.
Fig. 2 is the gas-liquid separator schematic diagram with backheating function, and its each several part assembly is: gas-liquid separator housing 8, low pressure refrigerant vapor import 9, low pressure refrigerant vapor outlet 10, high pressure refrigerant liquid import 11, high-pressure refrigerant outlet 12, S type coil pipe 13, high-pressure side cold-producing medium 14, low-pressure side cold-producing medium 15.Wherein gas-liquid separator housing 8 is the cylinder of two hollow, low-pressure side refrigerant vapour inlet pipeline 9 shell separator upper end and housing upper end perpendicular enter part in housing bending oblique under towards barrel, S type coil pipe 13 is positioned at gas-liquid separator bottom.Refrigerant circulation principle is that low-pressure side refrigerant vapour enters after import 9, and liquid refrigerant does downward corkscrew motion by the tube wall surface that acts on of centrifugal force and gravity, and gas is because of the air-breathing steam (vapor) outlet 10 that enters of diffusion and press; High-pressure side cold-producing medium 14 enters coil pipe 13 and low pressure refrigerant heat exchange cooling from import 11, then goes out from exporting 12.
That the utility model scheme has is easy to manufacture, heat exchange efficiency fast, refrigerating capacity advantages of higher, has great application prospect.
Claims (3)
1. the air-cooled Condensing units that gas-liquid separator is excessively cold, comprise gas-liquid separator, compressor, condenser, fan assembly, coiled subcooler, control valve, throttling arrangement and refrigerant tubing with backheating function, compressor is connected with condenser, it is characterized in that, condenser one road is connected to coiled subcooler, and the control valve of separately leading up to is connected with throttling arrangement; Described coiled subcooler Yi road is connected between control valve and throttling arrangement; Described gas-liquid separator one tunnel with backheating function is connected with compressor, and another road is connected with evaporimeter.
2. the excessively cold air-cooled Condensing units of a kind of gas-liquid separator according to claim 1, it is characterized in that, the described gas-liquid separator with backheating function comprises housing, low pressure refrigerant vapor import, low pressure refrigerant vapor outlet, high pressure refrigerant liquid import, high-pressure refrigerant outlet and heat exchange coil, wherein, low pressure refrigerant vapor import and low pressure refrigerant vapor outlet are positioned at the upper end of housing perpendicular with housing plane, high pressure refrigerant liquid import, high-pressure refrigerant outlet and heat exchange coil are positioned at the bottom of gas-liquid separator, described high pressure refrigerant liquid import and high-pressure refrigerant outlet are communicated with heat exchange coil.
3. the excessively cold air-cooled Condensing units of a kind of gas-liquid separator according to claim 2, is characterized in that, described heat exchange coil is S type coil pipe, and the front and back of coil pipe are also separately installed with knockout and liquid trap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714272.9U CN203605512U (en) | 2013-11-13 | 2013-11-13 | Air-cooling type compression condensing unit with supercooled gas-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714272.9U CN203605512U (en) | 2013-11-13 | 2013-11-13 | Air-cooling type compression condensing unit with supercooled gas-liquid separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203605512U true CN203605512U (en) | 2014-05-21 |
Family
ID=50718182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714272.9U Expired - Fee Related CN203605512U (en) | 2013-11-13 | 2013-11-13 | Air-cooling type compression condensing unit with supercooled gas-liquid separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203605512U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674633A (en) * | 2016-03-24 | 2016-06-15 | 西安交通大学 | Heat regenerator with gas and liquid separating function and refrigeration air conditioner system using heat regenerator |
| CN109990515A (en) * | 2019-04-30 | 2019-07-09 | 安徽美乐柯制冷空调设备有限公司 | A kind of heat exchange gas-liquid separator with economizer function |
| CN110986440A (en) * | 2019-12-20 | 2020-04-10 | 珠海格力电器股份有限公司 | Hot fluorine defrosting device, air conditioning unit and defrosting control method |
| CN111442581A (en) * | 2020-05-14 | 2020-07-24 | 和龙双昊高新技术有限公司 | Automobile air conditioner gas-liquid separator with waste heat recovery function |
| CN113294942A (en) * | 2020-02-24 | 2021-08-24 | 马勒国际公司 | Heat exchanger and refrigerant circulation loop |
| CN114838535A (en) * | 2022-05-18 | 2022-08-02 | 广东开利暖通空调股份有限公司 | Air conditioning system with bypass heating gas-liquid separator and heating method thereof |
-
2013
- 2013-11-13 CN CN201320714272.9U patent/CN203605512U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674633A (en) * | 2016-03-24 | 2016-06-15 | 西安交通大学 | Heat regenerator with gas and liquid separating function and refrigeration air conditioner system using heat regenerator |
| CN109990515A (en) * | 2019-04-30 | 2019-07-09 | 安徽美乐柯制冷空调设备有限公司 | A kind of heat exchange gas-liquid separator with economizer function |
| CN109990515B (en) * | 2019-04-30 | 2023-10-03 | 安徽美乐柯制冷空调设备有限公司 | Heat exchange gas-liquid separator with economizer function |
| CN110986440A (en) * | 2019-12-20 | 2020-04-10 | 珠海格力电器股份有限公司 | Hot fluorine defrosting device, air conditioning unit and defrosting control method |
| CN110986440B (en) * | 2019-12-20 | 2024-03-19 | 珠海格力电器股份有限公司 | Thermal fluorine defrosting device, air conditioning unit and defrosting control method |
| CN113294942A (en) * | 2020-02-24 | 2021-08-24 | 马勒国际公司 | Heat exchanger and refrigerant circulation loop |
| CN111442581A (en) * | 2020-05-14 | 2020-07-24 | 和龙双昊高新技术有限公司 | Automobile air conditioner gas-liquid separator with waste heat recovery function |
| CN114838535A (en) * | 2022-05-18 | 2022-08-02 | 广东开利暖通空调股份有限公司 | Air conditioning system with bypass heating gas-liquid separator and heating method thereof |
| CN114838535B (en) * | 2022-05-18 | 2023-09-12 | 广东开利暖通空调股份有限公司 | Air conditioning system with bypass heating gas-liquid separator and heating method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203605512U (en) | Air-cooling type compression condensing unit with supercooled gas-liquid separator | |
| CN204718250U (en) | Medical ultralow temperature combined type portable cold room refrigeration system | |
| CN204494922U (en) | A kind of evaporative condenser flooded screw handpiece Water Chilling Units | |
| CN105546864A (en) | Auto-cascade vapor compression type refrigeration cycle system with evaporation subcooler | |
| CN101556090B (en) | Vapor compression refrigeration unit | |
| CN104729133A (en) | Double gas-liquid separator efficiency increasing and refrigerating circulating system for two-temperature direct-cooling refrigerator | |
| CN202973644U (en) | Efficient water chiller | |
| CN101694329A (en) | Dual-working condition heat pump cold hot water machine unit of parallel evaporator | |
| CN201053785Y (en) | Heat pump air conditioner | |
| CN111678198A (en) | High-energy-efficiency-ratio machine room air conditioning system | |
| CN106705494A (en) | Air source heat pump energy conservation system with function of preventing air side heat exchanger from freezing | |
| CN104236177A (en) | Phase-change heat storage and coolant supercooling heat exchanger and air conditioning system with same | |
| CN201196503Y (en) | Vapor compression refrigeration unit | |
| CN102494375A (en) | Ultrahigh and low-temperature refrigerating, heating and water heating three-purpose air-conditioning system | |
| CN114909725B (en) | Efficient energy-saving multi-split system | |
| CN212205141U (en) | Low-ring-temperature air source heat pump system adopting double supercooling modes | |
| CN201166491Y (en) | Energy storage type composite heat source solution heat pump device | |
| CN102445016A (en) | Method for preparing large-temperature difference chilled water in single machine two-stage compression manner and special water chilling unit | |
| CN210089171U (en) | Dual-working-condition refrigerating system | |
| CN202581554U (en) | Pipeline system of single-refrigeration air conditioner | |
| CN203928493U (en) | Earth source heat pump | |
| CN108917220B (en) | Cooperative control ice source heat pump composite system with injection enthalpy increasing function | |
| CN108332323B (en) | Flat tube plate fin type heat source tower heat pump air conditioning system and working method thereof | |
| CN206626854U (en) | It is a kind of that there is the air source heat pumps energy-saving system for preventing air side heat exchanger icing function | |
| CN201575647U (en) | Energy-saving refrigeration integrated machine |
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: 20140521 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |