CN201293503Y - Coolant amount adjusting device for air conditioner - Google Patents

Coolant amount adjusting device for air conditioner Download PDF

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Publication number
CN201293503Y
CN201293503Y CNU2008202011744U CN200820201174U CN201293503Y CN 201293503 Y CN201293503 Y CN 201293503Y CN U2008202011744 U CNU2008202011744 U CN U2008202011744U CN 200820201174 U CN200820201174 U CN 200820201174U CN 201293503 Y CN201293503 Y CN 201293503Y
Authority
CN
China
Prior art keywords
stop valve
refrigerant
tank body
connected
tank
Prior art date
Application number
CNU2008202011744U
Other languages
Chinese (zh)
Inventor
黄钊
程卓明
马勇
Original Assignee
广东美的电器股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广东美的电器股份有限公司 filed Critical 广东美的电器股份有限公司
Priority to CNU2008202011744U priority Critical patent/CN201293503Y/en
Application granted granted Critical
Publication of CN201293503Y publication Critical patent/CN201293503Y/en

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Abstract

A refrigerant regulating device for an air conditioner comprises a pipeline, a first tank and a control stop valve, which is characterized in that a second tank and its control stop valve and the first tank and its control stop valve are connected in parallel via the pipeline and then connected with a high pressure stop valve. The other end of the high pressure stop valve is connected with an air conditioning system discharging the refrigerant according to requirement. A by-pass stop valve is arranged between the first and second tanks. An evacuation stop valve is connected on the second tank. The utility model is suitable for refrigerant regulating process for the middle and small air conditioner. The evacuated refrigerant regulating device is connected to the air conditioning system requiring discharging refrigerant that the refrigerant discharge can be operated. After using once, the refrigerant in the refrigerant regulating device is directly discharged or recovered and the refrigerant regulating device can be utilized again after evacuation. The utility model greatly decreases the refrigerant leakage after pipe detachment so as to improve the resource utilization efficiency of the unit in the development process and decrease the resource waste.

Description

The adjusting device for amount of coolant of air-conditioner

Technical field

The utility model relates to a kind of adjusting device for amount of coolant of air-conditioner, mainly is applicable to the coolant quantity tablet held before the breast by officials adjustment process of middle-size and small-size air-conditioner.

Background technology

In traditional air-conditioning unit development work, the constantly method of trial of general employing of determining of coolant quantity.When the coolant quantity overcharge, directly bleed off behind the refrigerant and fill again, the utilization rate of testing equipment and unit development efficiency can not get improving during this period.

China Patent No. ZL2004200443285 discloses a kind of experimental rig of definite air-conditioner optimal refrigerant filling quantity, it is composed in parallel by two throttling branch roads, stop valve of first route and one section capillary are in series, two stop valves of second route and a refrigerant reservoir are in series, and wherein the refrigerant reservoir is between two stop valves.Can be during use by regulating the Push And Release of two stop valves before and after the reservoir on second branch road, progressively to change the coolant quantity in the reservoir and the coolant quantity of systemic circulation, the Energy Efficiency Ratio of system is changed, when systematic function reaches the best, just can determine that this moment, system set optimal refrigerant filling quantity corresponding under the operating mode.Simultaneously, select the capillary equate with the first branch road flow, just can realize the optimum Match of capillary and best filling quantity and system under this operating mode, can thoroughly solve the error of theory calculating and the existence of experience estimation filling quantity by the contrast experiment.But its structure is complicated, is necessary further improvement and perfect.

The utility model content

The purpose of this utility model is intended to utilize the principle of the pressure balance and the conservation of mass, draw the coolant quantity of from system, emitting, thereby the coolant quantity that needs in the system that reappraises, provide a kind of simple and reasonable, easy to connect, test the adjusting device for amount of coolant of air-conditioner accurately, to overcome weak point of the prior art.

Press the adjusting device for amount of coolant of a kind of air-conditioner of this purpose design, comprise pipeline, first tank body and control stop valve thereof, its architectural feature is second tank body and control stop valve and first tank body thereof and controls stop valve and connect high-pressure stop valve by pipeline after in parallel that the high-pressure stop valve other end need discharge the air-conditioning system of refrigerant.

Be provided with the bypass cutoff valve between described first tank body and second tank body; Also be connected with on second tank body to vacuumize and use stop valve, this stop valve other end connects vavuum pump.

The adjusting device for amount of coolant of this air-conditioner is applicable to the coolant quantity tablet held before the breast by officials adjustment process of middle-size and small-size air-conditioner.The discharging refrigerant can be operated by the high-pressure stop valve place that refrigerant adjusting device after directly will finding time inserts the air-conditioning system that needs the discharging refrigerant.After using once, the refrigerant in the refrigerant adjusting device directly can be bled off or reclaim, can reuse after finding time again.

The utility model adopts the tank body after vacuumizing that unnecessary coolant quantity in the unit is absorbed automatically, again by reducing secondary refrigerant leakage (after the refrigerant discharge, will there be the part refrigerant at the tube connector place), tank body is communicated with connecting line, because pressure balance principle, its line segments and refrigerant source bulk container balance each other, thereby have greatly reduced the coolant leakage amount of tearing open behind the pipe, thereby improve efficiency of resource in the unit development process, as laboratory utilization rate, construction cycle etc.; Reduce the waste of resource in the development process simultaneously, the coolant quantity that all fills again during as debugging has reduced development cost, more energy-conserving and environment-protective.

Description of drawings

Fig. 1 is the utility model one example structure schematic diagram.

The specific embodiment

Referring to Fig. 1, the adjusting device for amount of coolant of this air-conditioner comprises first tank body 1 and control stop valve 5, second tank body 2 and control stop valve 4 thereof, two tank bodies connect high-pressure stop valve 3 after by the pipeline parallel connection, being provided with bypass cutoff valve 6, the second tank bodies 2 between two tank bodies also is communicated with and vacuumizes with stop valve 7.

The concrete steps of coolant quantity adjustment process are:

1, closing control stop valve 4 and 5 is opened bypass cutoff valve 6 and is vacuumized and uses stop valve 7.By the evacuation tube that vacuumizes with stop valve 7 first tank body 1 and second tank body 2 are vacuumized together.

2, vacuumized after, close bypass cutoff valve 6 and vacuumize with stop valve 7, determine that the quality of the vacuum state of system is: m1.(later on each time spent can be used as a reference value, does not need the repetition weighing)

3, the refrigerant adjusting device is inserted the high-pressure stop valve 3 of air-conditioning system, open control stop valve 5, allow first tank body 1 charge into refrigerant unnecessary in the system.

4, close high-pressure stop valve 3, wait for closing control stop valve 5 behind about 2min, and open control stop valve 4, allow the residual refrigerant of 3,4,5 of stop valves under the effect of pressure, balance each other, close stop valve 4 behind the 5min with second tank body 2.

5, pull down the refrigerant adjusting device by high-pressure stop valve 3 places, determine that the quality that this device fills behind the refrigerant is: m2.

6, m2-m1 is the coolant quantity that gives off in the air-conditioning system.

Secondary refrigerant leakage can be reduced to minimum point after above-mentioned refrigerant regulating tank recovery refrigerant was torn pipeline open, and the weight contrast draws system and discharges accurate coolant quantity before and after regulating by tank body.

Claims (2)

1. the adjusting device for amount of coolant of an air-conditioner, comprise pipeline, first tank body (1) and control stop valve (5) thereof, it is characterized in that second tank body (2) and control stop valve (4) thereof and first tank body and control stop valve connecing high-pressure stop valve (3), the air-conditioning system that another termination of high-pressure stop valve need be discharged refrigerant after in parallel by pipeline.
2,, it is characterized in that being provided with between first tank body and second tank body bypass cutoff valve (6) according to the adjusting device for amount of coolant of the described air-conditioner of claim 1; Also be connected with on second tank body and vacuumize with stop valve (7) this stop valve other end connection vavuum pump.
CNU2008202011744U 2008-09-27 2008-09-27 Coolant amount adjusting device for air conditioner CN201293503Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202011744U CN201293503Y (en) 2008-09-27 2008-09-27 Coolant amount adjusting device for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202011744U CN201293503Y (en) 2008-09-27 2008-09-27 Coolant amount adjusting device for air conditioner

Publications (1)

Publication Number Publication Date
CN201293503Y true CN201293503Y (en) 2009-08-19

Family

ID=41006983

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202011744U CN201293503Y (en) 2008-09-27 2008-09-27 Coolant amount adjusting device for air conditioner

Country Status (1)

Country Link
CN (1) CN201293503Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102207323A (en) * 2010-03-31 2011-10-05 苏州三星电子有限公司 Automatic regulating apparatus and method of refrigerant amount of air conditioner
CN102893096A (en) * 2010-03-14 2013-01-23 特灵国际有限公司 System and method for charging hvac system
CN103499168A (en) * 2013-09-24 2014-01-08 Tcl空调器(中山)有限公司 Connecting device and air conditioner refrigerant injection device and method
CN105674640A (en) * 2014-11-18 2016-06-15 上海日立电器有限公司 Adjusting device and method for matching of refrigerant charge of air conditioning system
CN105674641A (en) * 2014-11-18 2016-06-15 上海日立电器有限公司 Air conditioning system and method for automatically adjusting actual refrigerant charge of the air conditioning system
CN108716784A (en) * 2018-06-07 2018-10-30 广东美的暖通设备有限公司 Multi-line system and its control method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102893096A (en) * 2010-03-14 2013-01-23 特灵国际有限公司 System and method for charging hvac system
CN102893096B (en) * 2010-03-14 2016-01-06 特灵国际有限公司 For the system and method for filled HVAC system
CN102207323A (en) * 2010-03-31 2011-10-05 苏州三星电子有限公司 Automatic regulating apparatus and method of refrigerant amount of air conditioner
CN103499168A (en) * 2013-09-24 2014-01-08 Tcl空调器(中山)有限公司 Connecting device and air conditioner refrigerant injection device and method
CN103499168B (en) * 2013-09-24 2016-09-21 Tcl空调器(中山)有限公司 Attachment means, the coolant injection device of air-conditioning and method
CN105674640A (en) * 2014-11-18 2016-06-15 上海日立电器有限公司 Adjusting device and method for matching of refrigerant charge of air conditioning system
CN105674641A (en) * 2014-11-18 2016-06-15 上海日立电器有限公司 Air conditioning system and method for automatically adjusting actual refrigerant charge of the air conditioning system
CN105674641B (en) * 2014-11-18 2018-03-23 上海海立电器有限公司 Air-conditioning system and the method for automatically adjusting the actual refrigerant charge of air-conditioning system
CN105674640B (en) * 2014-11-18 2018-04-17 上海海立电器有限公司 The flux matched regulating device of air-conditioning system refrigerant charging and method
CN108716784A (en) * 2018-06-07 2018-10-30 广东美的暖通设备有限公司 Multi-line system and its control method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Guangdong Midea HVAC Equipment Co., Ltd.

Assignor: Meidi Electric Appliances Co., Ltd., Guangdong

Contract record no.: 2011440000521

Denomination of utility model: Coolant amount adjusting device for air conditioner

Granted publication date: 20090819

License type: Exclusive License

Record date: 20110613

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090819

Termination date: 20130927