CN202547210U - Control structure for intake air temperature of refrigeration system - Google Patents

Control structure for intake air temperature of refrigeration system Download PDF

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Publication number
CN202547210U
CN202547210U CN201220052711XU CN201220052711U CN202547210U CN 202547210 U CN202547210 U CN 202547210U CN 201220052711X U CN201220052711X U CN 201220052711XU CN 201220052711 U CN201220052711 U CN 201220052711U CN 202547210 U CN202547210 U CN 202547210U
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CN
China
Prior art keywords
compressor
condenser
evaporimeter
hydrojet
expansion valve
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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
Application number
CN201220052711XU
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Chinese (zh)
Inventor
周玉涛
Original Assignee
周玉涛
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Application filed by 周玉涛 filed Critical 周玉涛
Priority to CN201220052711XU priority Critical patent/CN202547210U/en
Application granted granted Critical
Publication of CN202547210U publication Critical patent/CN202547210U/en
Anticipated expiration legal-status Critical
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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 discloses a control structure for intake air temperature of a refrigeration system. An electronic expansion valve is arranged between a condenser and an evaporator; an output end of the condenser is connected with a liquid spraying bypass loop, the liquid spraying bypass loop is connected in front of an output end of the evaporator, and a nozzle of the liquid spraying bypass loop is aligned with an outer wall of an air intake pipe of a compressor; and the liquid spraying bypass loop is provided with an electronic expansion valve and a capillary pipe. Since the electronic expansion valve is arranged between the condenser and the evaporator instead of the conventional electromagnetic valve, the amount of liquid refrigerant entering the evaporator can be controlled, and the problem that evaporation cannot be performed promptly as a result of excessive refrigerant into the evaporator can be avoided; and since the output end of the condenser is provided with the liquid spraying bypass loop, the air intake pipe can be cooled by liquid sprayed out by the liquid spraying bypass loop, the intake air temperature of the compressor can be reduced, the working state of the system can be made safer and more reliable, better effects can be achieved, the compressor can be protected effectively, and the service life of the compressor can be prolonged.

Description

A kind of control structure of refrigeration system suction temperature
Technical field
The utility model relates to the air-conditioning product technical field, is specifically related to a kind of structure that the suction temperature of air-conditioning refrigeration system is controlled.
Background technology
Therefore advantages such as that central air conditioner system has is effective, efficient is high, power consumption is low all can be applied to central air-conditioning in many places.The most basic framework of air-conditioning system is that compressor is connected with condenser, condenser is connected with evaporimeter, evaporimeter is connected with compressor, thereby constitutes a closed circuit, is equipped with the auxiliary and control appliance of going up other again, constitutes a complete air-conditioning system thus.In the conventional art, compressor-condenser-evaporimeter-compressor is a closed circuit that carries out step by step successively, a magnetic valve normally is installed between condenser and evaporimeter is used to control the flow of refrigerant from the condenser to the evaporimeter.The shortcoming of conventional art is: the first, magnetic valve only opens or closes two states; That is to say for the control of cold-producing medium and have only on-off two situation, can not control the concrete flow of cold-producing medium, the amount of liquid refrigerant that so just possibly cause getting into evaporimeter is excessive; Some cold-producing medium has little time evaporation and just directly gets into compressor from air intake duct; Produce back the influence that liquid impacts, so can cause damage for a long time, also can influence the normal operation of system certainly compressor; The second, when system during at summer operation, because environment temperature is higher, the suction temperature of system and the degree of superheat can be very big, so not only can also can cause damage to compressor, the service life of shortening compressor to the operate as normal generation harmful effect of system.
The utility model content
The technical problem that the utility model will solve provides a kind of suction temperature that reduces system, can control the spouting liquid of cold-producing medium, make the control structure of the safer reliable refrigeration system suction temperature of system.
For solving the problems of the technologies described above; The utility model adopts following technical scheme: a kind of control structure of refrigeration system suction temperature; This refrigeration system comprises compressor, condenser and evaporimeter, and compressor connects condenser, and condenser connects evaporimeter; Evaporimeter connects compressor, and compressor, condenser and evaporimeter form a closed circuit; On the pipeline between compressor and the condenser, be provided with high-voltage switch gear and needle-valve; It between evaporimeter and the compressor air intake duct; Which is provided with low tension switch and needle-valve; It is characterized in that: on the pipeline between condenser and the evaporimeter, be provided with an electric expansion valve, electric expansion valve can accurately be controlled the refrigerant amount that gets into evaporimeter according to the running status of system, and cold-producing medium can effectively be evaporated; Prevent that too much liquid refrigerant from having little time to evaporate direct entering compressor, compressor is caused back the influence of liquid impact; Output at condenser is connected with a hydrojet bypass circulation, and this hydrojet bypass circulation is connected to output the place ahead of evaporimeter, the outer wall of the air intake duct of the nozzle alignment compressor of hydrojet bypass circulation; One electric expansion valve is installed on the hydrojet bypass circulation, and electric expansion valve can accurately be controlled spouting liquid, and it is quick on the draw, and prevents that hydrojet is too much; Partially liq is discharged the back from condenser and is got into the hydrojet bypass circulation, after the effect of electric expansion valve, waters the air intake duct outer surface that drenches compressor from the nozzle ejection of hydrojet bypass circulation, and the suction temperature of air intake duct is reduced.
Further, on the hydrojet bypass circulation, also be provided with capillary, capillary is located between the nozzle of electric expansion valve and hydrojet bypass circulation.Through capillary the pressure drop of hydrojet bypass circulation is increased, force electronic expansion valve opening to increase, avoid electric expansion valve in the excessive shortcoming of the too little time error of aperture.
The utility model replaces traditional magnetic valve through electric expansion valve is installed between condenser and evaporimeter, make that the amount of liquid refrigerant entering evaporimeter can be controlled, avoids getting into the problem that evaporimeter can not in time evaporate because of too much cold-producing medium; At the condenser output hydrojet bypass circulation is set; Utilize hydrojet bypass circulation ejection liquid that air intake duct is lowered the temperature; Reduce the suction temperature of compressor, thereby not only can make the duty of system safer reliable, reach better effect; And can effectively protect compressor, increase the service life of compressor.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure, 1 is compressor, and 2 is condenser, and 3 is evaporimeter, and 4 is capillary, and 5 is electric expansion valve, and 6 is electric expansion valve, and 7 is air intake duct, and 8 is the hydrojet bypass circulation, and HP is a high-voltage switch gear, and CJ is a needle-valve, and LP is a low tension switch.
The specific embodiment
In the present embodiment; With reference to Fig. 1, the control structure of said refrigeration system suction temperature, this refrigeration system comprise compressor 1, condenser 2 and evaporimeter 3; Compressor 1 connects condenser 2; Condenser 2 connects evaporimeter 3, and evaporimeter 3 connects compressor 1, and compressor 1, condenser 2 and evaporimeter 3 form a closed circuit; On the pipeline between compressor 1 and the condenser 2, being provided with high-voltage switch gear HP and needle-valve CJ, is air intake duct 7 between evaporimeter 3 and the compressor 1, which is provided with low tension switch LP and needle-valve CJ; On the pipeline between condenser 2 and the evaporimeter 3, be provided with an electric expansion valve 5; Electric expansion valve 5 can accurately be controlled the refrigerant amount that gets into evaporimeter 3 according to the running status of system; Cold-producing medium can effectively be evaporated; Prevent that too much liquid refrigerant from having little time to evaporate direct entering compressor 1, compressor 1 is caused back the influence of liquid impact; Output at condenser 2 is connected with a hydrojet bypass circulation 8, and this hydrojet bypass circulation 8 is connected to output the place ahead of evaporimeter 3, the outer wall of the air intake duct 7 of the nozzle alignment compressor 1 of hydrojet bypass circulation 8; One electric expansion valve 6 is installed on hydrojet bypass circulation 8, and this electric expansion valve 6 can accurately be controlled spouting liquid, and it is quick on the draw, and prevents that hydrojet is too much; Partially liq is discharged the back from condenser 2 and is got into hydrojet bypass circulations 8, after the effect of electric expansion valve 6, sprays air intake duct 7 outer surfaces of compressor 1 from the nozzle of hydrojet bypass circulation 8, and the suction temperature of air intake duct 7 is reduced.
On hydrojet bypass circulation 8, also be provided with capillary 4, capillary 4 is located between the nozzle of electric expansion valve 6 and hydrojet bypass circulation 8.Through capillary 4 pressure drop of hydrojet bypass circulation 8 is increased, force electric expansion valve 6 apertures to increase, avoid electric expansion valve 6 in the excessive shortcoming of the too little time error of aperture.
Below the utility model is done a detailed description; The above is merely the preferred embodiment of the utility model, when not limiting the utility model practical range; Be allly to do impartial change and modify, all should still belong in the utility model covering scope according to the application's scope.

Claims (2)

1. the control structure of a refrigeration system suction temperature; This refrigeration system comprises compressor, condenser and evaporimeter, and compressor connects condenser, and condenser connects evaporimeter; Evaporimeter connects compressor, and compressor, condenser and evaporimeter form a closed circuit; On the pipeline between compressor and the condenser, being provided with high-voltage switch gear and needle-valve, is air intake duct between evaporimeter and the compressor, which is provided with low tension switch and needle-valve, it is characterized in that: on the pipeline between condenser and the evaporimeter, be provided with an electric expansion valve; Output at condenser is connected with a hydrojet bypass circulation, and this hydrojet bypass circulation is connected to output the place ahead of evaporimeter, the outer wall of the air intake duct of the nozzle alignment compressor of hydrojet bypass circulation; One electric expansion valve is installed on the hydrojet bypass circulation.
2. the control structure of refrigeration system suction temperature according to claim 1 is characterized in that: on the hydrojet bypass circulation, also be provided with capillary, capillary is located between the nozzle of electric expansion valve and hydrojet bypass circulation.
CN201220052711XU 2012-02-19 2012-02-19 Control structure for intake air temperature of refrigeration system Expired - Fee Related CN202547210U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220052711XU CN202547210U (en) 2012-02-19 2012-02-19 Control structure for intake air temperature of refrigeration system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220052711XU CN202547210U (en) 2012-02-19 2012-02-19 Control structure for intake air temperature of refrigeration system

Publications (1)

Publication Number Publication Date
CN202547210U true CN202547210U (en) 2012-11-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220052711XU Expired - Fee Related CN202547210U (en) 2012-02-19 2012-02-19 Control structure for intake air temperature of refrigeration system

Country Status (1)

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CN (1) CN202547210U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528136A (en) * 2013-10-17 2014-01-22 深圳麦克维尔空调有限公司 Fresh air handling unit and control system thereof
CN106196507A (en) * 2016-08-19 2016-12-07 芜湖美智空调设备有限公司 Air-conditioner and the control method of air-conditioner
CN106288544A (en) * 2016-08-19 2017-01-04 芜湖美智空调设备有限公司 Air-conditioner and control method thereof
CN110849008A (en) * 2019-12-02 2020-02-28 江苏拓米洛环境试验设备有限公司 Refrigerating system and refrigerating method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103528136A (en) * 2013-10-17 2014-01-22 深圳麦克维尔空调有限公司 Fresh air handling unit and control system thereof
CN103528136B (en) * 2013-10-17 2016-08-24 深圳麦克维尔空调有限公司 Fresh air handling units and control system thereof
CN106196507A (en) * 2016-08-19 2016-12-07 芜湖美智空调设备有限公司 Air-conditioner and the control method of air-conditioner
CN106288544A (en) * 2016-08-19 2017-01-04 芜湖美智空调设备有限公司 Air-conditioner and control method thereof
CN110849008A (en) * 2019-12-02 2020-02-28 江苏拓米洛环境试验设备有限公司 Refrigerating system and refrigerating method thereof

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121121

Termination date: 20130219