CN204593944U - A kind of air conditioner outdoor unit system with supercooling apparatus - Google Patents

A kind of air conditioner outdoor unit system with supercooling apparatus Download PDF

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Publication number
CN204593944U
CN204593944U CN201520202528.7U CN201520202528U CN204593944U CN 204593944 U CN204593944 U CN 204593944U CN 201520202528 U CN201520202528 U CN 201520202528U CN 204593944 U CN204593944 U CN 204593944U
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China
Prior art keywords
heat exchanger
valve
communicated
port
export
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Expired - Fee Related
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CN201520202528.7U
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Chinese (zh)
Inventor
李波
许永锋
熊美兵
杨元涛
万永强
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201520202528.7U priority Critical patent/CN204593944U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model relates to a kind of band supercooling apparatus air conditioner outdoor unit system, and it comprises compressor, cross valve, outdoor heat exchanger, multi-stage heat exchanger assembly, gas-liquid separator; Exhaust outlet of compressor is connected with cross valve exhaust end D; Cross valve evaporator end E is communicated with indoor set part first tube connector; Outdoor heat exchanger one end connects cross valve condenser end C; Multi-stage heat exchanger assembly entrance point is communicated with the outdoor heat exchanger other end; Multistage mistake cold heat-exchanging component port of export is communicated with indoor set part second tube connector; Another port of export of the cold heat-exchanging component of multistage mistake merges with cross valve suction end S and is connected gas-liquid separator entrance; Gas-liquid separator outlet is communicated with compressor return air mouth.The utility model beneficial effect is: can not only play super cooling effect in refrigeration and heating mode, reduce system loss, and can select cold electric expansion valve according to load variations and cross cold heat exchanger capacity, improves the stability of a system and reliability with this.

Description

A kind of air conditioner outdoor unit system with supercooling apparatus
Technical field
The utility model relates to air-conditioning and crosses refrigeration technique field, particularly relates to a kind of air conditioner outdoor unit system with supercooling apparatus.
Background technology
Cross refrigeration technique air conditioner industry use more and more extensive, the scheme of general employing is a structure crossed cold heat exchanger and add a cold electric expansion valve of mistake, draw part refrigerant from main hydraulic pipe and pass through cold electric expansion valve throttling, evaporate in mistake cold heat exchanger, reach the effect reducing main hydraulic pipe refrigerant temperature.
An existing Chinese invention patent, its publication number is: 101886852A, this invention provides a kind of air-conditioning system of using sub-cooler and the control method of refrigerant flow thereof, controls the refrigerant flow by subcooler low-pressure side, thus better plays the due effect of subcooler.There is suitable cold-producing medium to carry out cycle operation during to guarantee system cloud gray model, improve operational efficiency and the service life of unit, ensure the result of use of user.Described air-conditioning system includes first sensor and the second sensor, and described first sensor and the second sensor setting are on the diverse location of refrigeration system circulation canal; Described controller includes operation result module and output module, described operation result module calculates refrigerant flow according to the data of described first sensor and the second sensor collection, and changing into electronic expansion valve opening instruction, output module controls the aperture of described electric expansion valve according to electronic expansion valve opening instruction.
Although the control of this invention is relatively simple, the change of load well can not be adapted to.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of air conditioner outdoor unit system with supercooling apparatus, solves the technical problem that well can not adapt to the change of load in prior art.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of air conditioner outdoor unit system with supercooling apparatus, and it comprises compressor, and compressor has exhaust outlet and gas returning port; Cross valve, cross valve has evaporator end E, suction end S, exhaust end D and condenser end C tetra-ports, and the exhaust outlet of compressor is connected by pipeline with the exhaust end D of cross valve; The evaporator end E of cross valve is communicated with the first tube connector of indoor set part; Outdoor heat exchanger, one end of outdoor heat exchanger is connected to the condenser end C of cross valve by pipeline; Multi-stage heat exchanger assembly, the entrance point of multi-stage heat exchanger assembly is communicated with the other end of outdoor heat exchanger by pipeline; A port of export of the cold heat-exchanging component of multistage mistake is communicated with the second tube connector of indoor set part; Gas-liquid separator, gas-liquid separator has entrance and exit; Another port of export of the cold heat-exchanging component of multistage mistake merges with the suction end S of cross valve and is connected the entrance of gas-liquid separator; The outlet of gas-liquid separator is communicated with the gas returning port of compressor.
The beneficial effects of the utility model are: can not only play super cooling effect in refrigeration and heating mode, reduce system loss, and can cold electric expansion valve be selected according to load variations and cross the capacity of cold heat exchanger, stability and the reliability of system is improved with this.
Further: multi-stage heat exchanger assembly comprises First Heat Exchanger, the second heat exchanger, first throttle parts, second section stream unit and check valve; First Heat Exchanger and the second heat exchanger have primary flow path and secondary flow road respectively; The primary flow path of outdoor heat exchanger, First Heat Exchanger, the primary flow path of the second heat exchanger connect successively; The port of export of the primary flow path of the second heat exchanger is communicated with the second tube connector; One end of first throttle parts is communicated with outdoor heat exchanger, and the other end of first throttle parts is communicated with the entrance point on the secondary flow road of First Heat Exchanger; One end of second section stream unit is communicated with outdoor heat exchanger, and the other end of second section stream unit is communicated with the entrance point on the secondary flow road of the second heat exchanger; Check valve is arranged between the entrance point on the port of export on the secondary flow road of First Heat Exchanger and the secondary flow road of the second heat exchanger; Be connected with the entrance of gas-liquid separator after the port of export on the secondary flow road of the second heat exchanger and the suction end S of cross valve merge.
The beneficial effect of above-mentioned further scheme is: contribute to the stability of maintenance system and ensure refrigeration or the heating effect of indoor set to improve the reliability of system.
Further: also to comprise electric expansion valve; Be connected with outdoor heat exchanger by electric expansion valve after one end merging of the entrance point of the primary flow path of First Heat Exchanger, one end of first throttle parts, second section stream unit.
The beneficial effect of above-mentioned further scheme is: adopt electric expansion valve to shorten freeze-off time, electric expansion valve is freezing accomplish load and cold balancing in overall process, freeze efficiency can be improved, freeze-off time also can shorten 10% than heating power expansion valve, also just decreases the energy consumption of compressor simultaneously.
Further: the heat exchange area of First Heat Exchanger is larger than the heat exchange area of the second heat exchanger.
The beneficial effect of above-mentioned further scheme is: select different heat exchange areas, obtains different refrigeration or heating effect.
Further: First Heat Exchanger and/or the second heat exchanger are plate type heat exchanger or sleeve type heat exchanger.
The beneficial effect of above-mentioned further scheme is: the heat exchanger can selecting different model according to the demand of reality.
Further: the first tube connector is provided with the first stop valve.
The beneficial effect of above-mentioned further scheme is: convenient installation or maintenance.
Further: the second tube connector is provided with the second stop valve.
The beneficial effect of above-mentioned further scheme is: convenient installation or maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the present utility model;
Fig. 2 is the structural representation of the second embodiment of the present utility model.
Detailed description of the invention
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, be the first embodiment of the present utility model, it discloses a kind of air conditioner outdoor unit system with supercooling apparatus, and it comprises compressor 1, cross valve 2, vapour liquid separator 3, outdoor heat exchanger 4, electric expansion valve 5 and the cold heat-exchanging component of multistage mistake; Compressor 1, cross valve 2, vapour liquid separator 3, outdoor heat exchanger 4, electric expansion valve 5 and the cold heat-exchanging component of multistage mistake are connected to form closed circulation canal by pipeline, and cold-producing medium is arranged in circulation canal and flows.
The exhaust outlet of compressor 1 connects the exhaust end D of cross valve 2, and the gas returning port of compressor 1 connects the outlet of vapour liquid separator 3.
The evaporator end E of cross valve 2 is communicated with the first tube connector of indoor set part.Best first tube connector is provided with the first stop valve 9.1.
The condenser end C of cross valve 2 is connected with the first end of outdoor heat exchanger 4; Second end of outdoor heat exchanger 4 is connected with the first end of electric expansion valve 5.
The entrance point of the cold heat-exchanging component of multistage mistake is connected with the second end of electric expansion valve 5; A port of export of the cold heat-exchanging component of multistage mistake converges with the suction end S of cross valve 2 and is connected the entrance of vapour liquid separator 3; Another port of export of the cold heat-exchanging component of multistage mistake is communicated with the second tube connector of indoor set part.Best second tube connector is provided with the second stop valve 9.2.
The cold heat-exchanging component of multistage mistake is that two-stage crosses cold heat-exchanging component, and it comprises first throttle parts 7.1, second section stream unit 7.2, First Heat Exchanger 6.1 and the second heat exchanger 6.2.First Heat Exchanger 6.1 and the second heat exchanger 6.2 can phase selection with model or different models.
Second end of electric expansion valve 5 is divided into three tunnels: a road is connected with the entrance point of the liquid pipe of First Heat Exchanger 6.1; Another road connects the entrance point of the tracheae of first throttle parts 7.1 and then connection First Heat Exchanger 6.1; A road is also had to connect second section stream unit 7.2 and converge the entrance point of the tracheae being connected the second heat exchanger 6.2 again with the port of export of the tracheae of First Heat Exchanger 6.1.
The port of export of the liquid pipe of First Heat Exchanger 6.1 is connected with the entrance point of the liquid pipe of the second heat exchanger 6.2; The port of export of the liquid pipe of the second heat exchanger 6.2 is communicated with the second tube connector of indoor set part; The port of export of the tracheae of the second heat exchanger 6.2 converges with the suction end S of cross valve 2 and is connected the entrance point of vapour liquid separator 3.
The cold heat-exchanging component of multistage mistake also comprises the first check valve 8.1; The first end of the first check valve 8.1 connects the port of export of the tracheae of First Heat Exchanger 6.1; Second end of the first check valve 8.1 converges the entrance point of the tracheae being connected the second heat exchanger 6.2 again with second end (first end of second section stream unit 7.2 is connected with the second end of electric expansion valve 5) of second section stream unit 7.2.
The heat exchange area of First Heat Exchanger 6.1 is larger than the heat exchange area of the second heat exchanger 6.2.
1, during refrigeration mode:
When system loading is larger, open first throttle parts 7.1, second section stream unit 7.2 is opened to maximum opening, utilizes First Heat Exchanger 6.1 and the second heat exchanger 6.2 to obtain maximum cold excessively simultaneously.The larger first throttle parts 7.1 of bore are now only utilized to carry out throttling, first throttle parts 7.1 are in larger aperture, according to the characteristic curve of electric expansion valve, electric expansion valve is when aperture is less, and flow curve is comparatively steep, and Flow Adjusting Performance is poor, when aperture is larger, flow curve is comparatively mild, and Flow Adjusting Performance is good, and therefore system is comparatively stable.
When system loading is less, close first throttle parts 7.1, open second section stream unit 7.2, the second heat exchanger 6.2 only utilizing area less quantitative crosses cold, because the bore of second section stream unit 7.2 is less, according to the discharge characteristic of electric expansion valve to obtain, now the aperture of second section stream unit 7.2 can in milder middle aperture, adjust flux performance is good, contributes to being conducive to the stability of maintenance system and ensureing the refrigeration of indoor set to improve the reliability of system.
2, during heating mode:
Under low temperature load, open first throttle parts 7.1, close second section stream unit 7.2, utilize First Heat Exchanger 6.1 and the second heat exchanger 6.2 to carry out coolant pipe temperature simultaneously, be conducive to obtaining maximum heating capacity, improve system heating capacity.
Under high-temperature load, close first throttle parts 7.1, open second section stream unit 7.2, only utilize the second heat exchanger 6.2 to obtain quantitative cold excessively, the high-pressure being conducive to keeping system stablizes the reliability with system.
As shown in Figure 2, be the second embodiment of the present utility model, the cold heat-exchanging component of multistage mistake in the present embodiment is different from the cold heat-exchanging component of multistage mistake in the first embodiment, and other technologies feature is substantially identical.The cold heat-exchanging component of multistage mistake three in the present embodiment crosses cold heat-exchanging component for level, and it comprises first throttle parts 7.1, second section stream unit 7.2, the 3rd electric expansion valve 7.3, First Heat Exchanger 6.1, second heat exchanger 6.2 and the 3rd heat exchanger 6.3.
Second end of electric expansion valve 5 is divided into four tunnels: a road is connected with the entrance point of the liquid pipe of First Heat Exchanger 6.1; Another road connects the entrance point of the tracheae of first throttle parts 7.1 and then connection First Heat Exchanger 6.1; A road is also had to connect second section stream unit 7.2 and converge the entrance point of the tracheae being connected the second heat exchanger 6.2 again with the port of export of the tracheae of First Heat Exchanger 6.1; Last road connects the 3rd electric expansion valve 7.3 and converges the entrance point of the tracheae being connected the 3rd heat exchanger 6.3 again with the port of export of the tracheae of the second heat exchanger 6.2.
The port of export of the liquid pipe of First Heat Exchanger 6.1 is connected with the entrance point of the liquid pipe of the second heat exchanger 6.2; The port of export of the liquid pipe of the second heat exchanger 6.2 is connected with the entrance point of the liquid pipe of the 3rd heat exchanger 6.3; The port of export of the liquid pipe of the 3rd heat exchanger 6.3 is communicated with the second tube connector of indoor set part.Best second tube connector is provided with the second stop valve 9.2.
The port of export of the tracheae of the 3rd heat exchanger 6.3 converges with the suction end S of cross valve 2 and is connected the entrance point of vapour liquid separator 3.
The cold heat-exchanging component of multistage mistake also comprises the first check valve 8.1; The entrance point of the first check valve 8.1 connects the port of export of the tracheae of First Heat Exchanger 6.1; The port of export of the first check valve 8.1 converges the entrance point of the tracheae being connected the second heat exchanger 6.2 again with second end (first end of second section stream unit 7.2 is connected with the second end of electric expansion valve 5) of second section stream unit 7.2.
The cold heat-exchanging component of multistage mistake also comprises the second check valve 8.2; The entrance point of the second check valve 8.2 connects the port of export of the tracheae of the second heat exchanger 6.2; The port of export of the second check valve 8.2 converges the entrance point of the tracheae being connected the 3rd heat exchanger 6.3 again with second end (first end of the 3rd electric expansion valve 7.3 is connected with the second end of electric expansion valve 5) of the 3rd electric expansion valve 7.3.
The heat exchange area of First Heat Exchanger 6.1 is larger than the heat exchange area of the second heat exchanger 6.2; The heat exchange area of the second heat exchanger 6.2 is larger than the heat exchange area of the 3rd heat exchanger 6.3.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (7)

1. the air conditioner outdoor unit system with supercooling apparatus, is characterized in that: comprise as follows:
Compressor (1), described compressor (1) has exhaust outlet and gas returning port;
Cross valve (2), described cross valve (2) has evaporator end E, suction end S, exhaust end D and condenser end C tetra-ports, and the exhaust outlet of described compressor (1) is connected by pipeline with the exhaust end D of described cross valve (2); The evaporator end E of described cross valve (2) is communicated with the first tube connector of indoor set part;
Outdoor heat exchanger (4), one end of described outdoor heat exchanger (4) is connected to the condenser end C of described cross valve (2) by pipeline;
Multi-stage heat exchanger assembly, the entrance point of described multi-stage heat exchanger assembly is communicated with by the other end of pipeline with described outdoor heat exchanger (4); A port of export of the cold heat-exchanging component of described multistage mistake is communicated with the second tube connector of described indoor set part;
Gas-liquid separator (3), described gas-liquid separator (3) has entrance and exit; Another port of export of the cold heat-exchanging component of described multistage mistake merges with the suction end S of described cross valve (2) and is connected the entrance of described gas-liquid separator (3); The outlet of described gas-liquid separator (3) is communicated with the gas returning port of described compressor (1).
2. a kind of air conditioner outdoor unit system with supercooling apparatus according to claim 1, is characterized in that: described multi-stage heat exchanger assembly comprises First Heat Exchanger (6.1), the second heat exchanger (6.2), first throttle parts (7.1), second section stream unit (7.2) and check valve (8.1); Described First Heat Exchanger (6.1) and the second heat exchanger (6.2) have primary flow path and secondary flow road respectively;
The primary flow path of described outdoor heat exchanger (4), described First Heat Exchanger (6.1), the primary flow path of the second heat exchanger (6.2) connect successively; The port of export of the primary flow path of described second heat exchanger (6.2) is communicated with described second tube connector; One end of described first throttle parts (7.1) is communicated with described outdoor heat exchanger (4), and the other end of described first throttle parts (7.1) is communicated with the entrance point on the secondary flow road of described First Heat Exchanger (6.1); One end of described second section stream unit (7.2) is communicated with described outdoor heat exchanger (4), and the other end of described second section stream unit (7.2) is communicated with the entrance point on the secondary flow road of described second heat exchanger (6.2); Described check valve (8.1) is arranged between the entrance point on the port of export on the secondary flow road of described First Heat Exchanger (6.1) and the secondary flow road of the second heat exchanger (6.2);
The port of export and the suction end S of described cross valve (2) on the secondary flow road of described second heat exchanger (6.2) merge and are connected with the entrance of described gas-liquid separator (3) afterwards.
3. a kind of air conditioner outdoor unit system with supercooling apparatus according to claim 2, is characterized in that: also comprise electric expansion valve (5); One end of the entrance point of the primary flow path of described First Heat Exchanger (6.1), one end of first throttle parts (7.1), described second section stream unit (7.2) merges the rear described electric expansion valve (5) that passes through and is connected with described outdoor heat exchanger (4).
4. a kind of air conditioner outdoor unit system with supercooling apparatus according to claim 2, is characterized in that: the heat exchange area of described First Heat Exchanger (6.1) is larger than the heat exchange area of described second heat exchanger (6.2).
5. a kind of air conditioner outdoor unit system with supercooling apparatus according to claim 2, is characterized in that: described First Heat Exchanger (6.1) and/or described second heat exchanger (6.2) are plate type heat exchanger or sleeve type heat exchanger.
6. a kind of air conditioner outdoor unit system with supercooling apparatus according to any one of claim 1 to 5, is characterized in that: described first tube connector is provided with the first stop valve (9.1).
7. a kind of air conditioner outdoor unit system with supercooling apparatus according to any one of claim 1 to 5, is characterized in that: described second tube connector is provided with the second stop valve (9.2).
CN201520202528.7U 2015-04-03 2015-04-03 A kind of air conditioner outdoor unit system with supercooling apparatus Expired - Fee Related CN204593944U (en)

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CN201520202528.7U CN204593944U (en) 2015-04-03 2015-04-03 A kind of air conditioner outdoor unit system with supercooling apparatus

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105571035A (en) * 2016-03-10 2016-05-11 青岛海尔空调电子有限公司 Refrigerating air conditioner
CN110044103A (en) * 2018-01-15 2019-07-23 杭州赛富特设备有限公司 A kind of falling film type shell-tube evaporator and air-conditioning system
CN111397006A (en) * 2020-03-31 2020-07-10 广东美的制冷设备有限公司 Central air-conditioning system and control method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105571035A (en) * 2016-03-10 2016-05-11 青岛海尔空调电子有限公司 Refrigerating air conditioner
CN110044103A (en) * 2018-01-15 2019-07-23 杭州赛富特设备有限公司 A kind of falling film type shell-tube evaporator and air-conditioning system
CN111397006A (en) * 2020-03-31 2020-07-10 广东美的制冷设备有限公司 Central air-conditioning system and control method thereof
CN111397006B (en) * 2020-03-31 2021-08-20 广东美的制冷设备有限公司 Central air-conditioning system and control method thereof

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Granted publication date: 20150826

Termination date: 20190403