CN203869388U - Connecting tool for test on VRF air conditioner - Google Patents

Connecting tool for test on VRF air conditioner Download PDF

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Publication number
CN203869388U
CN203869388U CN201420144375.0U CN201420144375U CN203869388U CN 203869388 U CN203869388 U CN 203869388U CN 201420144375 U CN201420144375 U CN 201420144375U CN 203869388 U CN203869388 U CN 203869388U
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CN
China
Prior art keywords
refrigerant
valve
indoor set
described
multi
Prior art date
Application number
CN201420144375.0U
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Chinese (zh)
Inventor
刘红斌
Original Assignee
广东志高暖通设备股份有限公司
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Priority to CN201420144375.0U priority Critical patent/CN203869388U/en
Application granted granted Critical
Publication of CN203869388U publication Critical patent/CN203869388U/en

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Abstract

The utility model provides a connecting tool for a test on a VRF air conditioner. The connecting tool comprises a plurality of valves which are arranged at refrigerant input ends and refrigerant output ends of indoor units, and vacuum pumping filler line openings. Each valve is located on a refrigerant circulating branch where each indoor unit is located, wherein the refrigerant circulating branches are located in a refrigerant circulating pipeline of the VRF air conditioner. Each vacuum pumping filler line opening is formed in one end of the corresponding valve and communicated with an inner cavity of the corresponding valve. Each valve is arranged at one end of the corresponding vacuum pumping filler line opening and is connected with the refrigerant input end or the refrigerant output end of the corresponding indoor unit. The connecting tool is installed in the refrigerant circulating pipeline of the VRF air conditioner needing to be tested, when a part of indoor units need to be replaced, only the refrigerant circulating branches where the indoor units needing to be replaced are located need to be blocked through the connecting tool without recycling refrigerant of a whole system, the number of the indoor units needing vacuum pumping and refrigerant filling operation is reduced, time needed for testing vacuum pumping of the system is shortened, and test efficiency of a laboratory is improved.

Description

The connecting tooling of multi-gang air-conditioner test

Technical field

The utility model relates to detection of air-conditioning component technology field, more particularly, relates to a kind of connecting tooling of multi-gang air-conditioner test.

Background technology

At present, multi-online air-conditioning system can be realized the corresponding connection of one or more off-premises station and one or more indoor set, its catenation principle (connects four indoor sets as example so that an off-premises station is corresponding) as shown in Figure 1, wherein, four indoor sets (being respectively indoor set A, indoor set B, indoor set C and indoor set D) are arranged in parallel in system.After multi-online air-conditioning system installation, vacuumize and fill after refrigerant at multi-online air-conditioning system, need to carry out test job to multi-online air-conditioning system again, in test process, need removable parts indoor set during as pinpointed the problems, need the refrigerant of whole system to reclaim, finish changing again whole system is vacuumized after indoor set and fill refrigerant after just can proceed test.And in actual mechanical process, conventionally pumpdown time of system is needed more than one hour, if indoor set and off-premises station that system connects are more, the time vacuumizing needs several hours, comparatively serious impact the testing efficiency in laboratory.

Therefore, how improving the testing efficiency of multi-gang air-conditioner, is current those skilled in the art's problem demanding prompt solution.

Utility model content

In view of this, the utility model provides a kind of connecting tooling of multi-gang air-conditioner test, and it can shorten the time vacuumizing, thereby has improved the testing efficiency in laboratory.

In order to achieve the above object, the utility model provides following technical scheme:

A connecting tooling for multi-gang air-conditioner test, it comprises:

Be arranged on the refrigerant input of each indoor set and multiple valves of refrigerant output, described valve is arranged on the refrigerant circulation branch road at the each described indoor set of medium circulation pipeline place of described multi-gang air-conditioner;

Be arranged on one end of described valve, and be communicated with the filled mouth of pipe of vacuumizing of described valve cavity, described valve is provided with and vacuumizes the one end that fills the mouth of pipe, is connected with refrigerant input or the refrigerant output of described indoor set.

Preferably, in the connecting tooling of above-mentioned multi-gang air-conditioner test, the two ends of described valve are connected with respectively copper nut and pipe joint, described copper nut is communicated with refrigerant input or the refrigerant output of described valve and described indoor set, and described pipe joint is communicated with refrigerant input or the refrigerant output of described valve and off-premises station.

Preferably, in the connecting tooling of above-mentioned multi-gang air-conditioner test, described valve is connected with described copper nut and described pipe joint by copper pipe.

Preferably, in the connecting tooling of above-mentioned multi-gang air-conditioner test, described valve is ball valve.

In the connecting tooling of the multi-gang air-conditioner test that the utility model provides, valve is arranged on the refrigerant input and refrigerant output of each indoor set, in the medium circulation pipeline of multi-gang air-conditioner, the both sides of each indoor set are provided with valve, and valve is positioned on the refrigerant circulation branch road at each indoor set place.Be provided with and vacuumize the filled mouth of pipe in one end of valve, valve, in the time being installed to indoor set both sides, makes valve be provided with vacuumizing filling one end of the mouth of pipe and refrigerant input of indoor set or refrigerant output and being connected.In the time that medium circulation pipeline is started working and multi-gang air-conditioner is tested, if while finding to need removable parts indoor set in test process, the indoor set one side valve closing that only needs need be changed, and one of them of indoor set both sides of changing at needs vacuumizes and fills Bonding pressure table on the mouth of pipe, pressure on the refrigerant circulation branch road at the indoor set place that need to change in order to test, in the time that Pressure gauge shows that pressure is negative pressure, close another valve on refrigerant circulation branch road, then the indoor set of needs being changed is changed operation, carry out vacuum pumping by vacuumizing the filled mouth of pipe again, and the test macro of multi-gang air-conditioner is carried out to pressurize, in the time detecting pressure without leakage, open all valves of closing, complete the replacing of indoor set, proceed system testing work.The connecting tooling of the multi-gang air-conditioner test that the utility model provides, be arranged in the medium circulation pipeline of the multi-gang air-conditioner that needs test, in the time that wherein part indoor set need to be changed, the refrigerant circulation at the indoor set place that only need needs be changed by this connecting tooling is blocked, and without the refrigerant of whole system is reclaimed, thereby reduce the quantity of the indoor set that need to vacuumize and fill refrigerant operation, shorten test macro and vacuumized the time needing, improved the testing efficiency in laboratory.

Brief description of the drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The test philosophy figure (what in figure, arrow represented is the flow direction of refrigerant) of the multi-gang air-conditioner that Fig. 1 provides for prior art;

The installation schematic diagram (what in figure, arrow represented is the flow direction of refrigerant) of the connecting tooling of the multi-gang air-conditioner test that Fig. 2 provides for the utility model embodiment;

Fig. 3 is the structural representation of connecting tooling.

In upper Fig. 3:

Valve 1, vacuumize and fill the mouth of pipe 2, copper nut 3, pipe joint 4.

Detailed description of the invention

The utility model provides a kind of connecting tooling of multi-gang air-conditioner test, and it can shorten the time vacuumizing, thereby has improved the testing efficiency in laboratory.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

As shown in Figures 2 and 3, in Fig. 2, as an example of the off-premises station multi-gang air-conditioner in parallel with four indoor sets (being respectively indoor set A, indoor set B, indoor set C and indoor set D) example, the present embodiment is embodied, the connecting tooling of the multi-gang air-conditioner test that the utility model embodiment provides, it comprises: valve 1, be arranged on one end of valve 1, and be communicated with the filled mouth of pipe 2 of vacuumizing of valve 1 inner chamber, and the copper nut 3 and the pipe joint 4 that are connected respectively with the two ends of valve 1.

In the time that connecting tooling is set in the medium circulation pipeline of multi-gang air-conditioner, multiple valves 1 are connected with refrigerant input and the refrigerant output of each indoor set respectively, and on the refrigerant circulation branch road at the each indoor set of the medium circulation pipeline place that all valves 1 are all arranged in multi-gang air-conditioner, and valve 1 is provided with to vacuumize and fills one end of the mouth of pipe 2, be connected with refrigerant input or the refrigerant output of indoor set.

In the connecting tooling of the multi-gang air-conditioner test that the present embodiment provides, valve 1 is arranged on the refrigerant input and refrigerant output of each indoor set, in the medium circulation pipeline of multi-gang air-conditioner, the both sides of each indoor set are provided with valve 1, and valve 1 is positioned on the refrigerant circulation branch road at each indoor set place.Be provided with in one end of valve 1 to vacuumize and fill the mouth of pipe 2, valve 1, in the time being installed to indoor set both sides, makes valve 1 be provided with vacuumizing filling one end of the mouth of pipe 2 and refrigerant input of indoor set or refrigerant output and being connected.In the time that medium circulation pipeline is started working and multi-gang air-conditioner is tested, when need removable parts indoor set in test process time, the indoor set one side valve door 1 that only needs need be changed is closed, and one of them of indoor set both sides of changing at needs vacuumizes and fills Bonding pressure table on the mouth of pipe 22, pressure on the refrigerant circulation branch road at the indoor set place that need to change in order to test, in the time that Pressure gauge shows that pressure is negative pressure, close another valve 1 on refrigerant circulation branch road, then the indoor set of needs being changed is changed operation, carry out vacuum pumping by vacuumizing the filled mouth of pipe 2 again, and the test macro of multi-gang air-conditioner is carried out to pressurize, in the time detecting pressure without leakage, open all valves 1 of closing, complete the replacing of indoor set, proceed system testing work.

The connecting tooling of the multi-gang air-conditioner test that the present embodiment provides, be arranged in the medium circulation pipeline of the multi-gang air-conditioner that needs test, in the time that wherein part indoor set need to be changed, the refrigerant circulation at the indoor set place that only need needs be changed by this connecting tooling is blocked, and without the refrigerant of whole system is reclaimed, thereby reduce the quantity of the indoor set that need to vacuumize and fill refrigerant operation, shorten test macro and vacuumized the time needing, improved the testing efficiency in laboratory.

Preferably, the two ends of valve 1 are connected with respectively copper nut 3 and pipe joint 4, and copper nut 3 is communicated with refrigerant input or the refrigerant output of valve 1 and indoor set, and pipe joint 4 is communicated with refrigerant input or the refrigerant output of valve 1 and off-premises station.In the present embodiment, be preferred embodiment as copper nut 3 and the pipe joint 4 of connector, it is comparatively applicable to the installation environment of the present embodiment, and cheap, installs simple and convenient.

Concrete, valve 1 is ball valve, and valve 1 is connected with copper nut 3 and pipe joint 4 by copper pipe.With copper pipe attaching nut and pipe joint 4, as long as being consistent with the material of the circulation line of refrigerant, make connecting tooling there is equally good thermal conductivity.

In the present embodiment, in multi-gang air-conditioner test macro, as shown in Figure 2, in the process of test that multi-gang air-conditioner is freezed, as need are changed indoor set A, switch place at valve one or valve two connects Pressure gauge, running refrigerating, valve-off one, compressor by off-premises station carries out refrigerant recovering to indoor set A, when the pressure reading on Pressure gauge is shown to negative pressure, represent that indoor set A has been vacuum state, then valve-off two, powered-down, change indoor set A, after the indoor set more renewing, vacuumize at Pressure gauge place, then carry out test macro pressurize, if test macro does not have seepage, open valve one and valve two, the operation of starting shooting continues test, changing indoor set to this completes.

In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.

To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (4)

1. a connecting tooling for multi-gang air-conditioner test, is characterized in that, comprising:
Be arranged on the refrigerant input of each indoor set and multiple valves of refrigerant output, described valve is arranged on the refrigerant circulation branch road at the each described indoor set of medium circulation pipeline place of described multi-gang air-conditioner;
Be arranged on one end of described valve, and be communicated with the filled mouth of pipe of vacuumizing of described valve cavity, described valve is provided with and vacuumizes the one end that fills the mouth of pipe, is connected with refrigerant input or the refrigerant output of described indoor set.
2. the connecting tooling of multi-gang air-conditioner test according to claim 1, it is characterized in that, the two ends of described valve are connected with respectively copper nut and pipe joint, described copper nut is communicated with refrigerant input or the refrigerant output of described valve and described indoor set, and described pipe joint is communicated with refrigerant input or the refrigerant output of described valve and off-premises station.
3. the connecting tooling of multi-gang air-conditioner test according to claim 2, is characterized in that, described valve is connected with described copper nut and described pipe joint by copper pipe.
4. according to the connecting tooling of the multi-gang air-conditioner test described in claim 1,2 or 3, it is characterized in that, described valve is ball valve.
CN201420144375.0U 2014-03-27 2014-03-27 Connecting tool for test on VRF air conditioner CN203869388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420144375.0U CN203869388U (en) 2014-03-27 2014-03-27 Connecting tool for test on VRF air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420144375.0U CN203869388U (en) 2014-03-27 2014-03-27 Connecting tool for test on VRF air conditioner

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CN203869388U true CN203869388U (en) 2014-10-08

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107421152A (en) * 2017-08-17 2017-12-01 珠海格力电器股份有限公司 A kind of cold supply system and its control method
CN109579349A (en) * 2018-12-05 2019-04-05 南京天加环境科技有限公司 A kind of multi-line system and its control method reliable for operation
CN109682136A (en) * 2019-01-27 2019-04-26 珠海格力电器股份有限公司 Heat-reclamation multi-compressors and its method vacuumized
CN110173847A (en) * 2019-06-04 2019-08-27 珠海格力电器股份有限公司 A kind of control method, device, storage medium and air-conditioning recycling refrigerant
CN110260420A (en) * 2019-06-04 2019-09-20 珠海格力电器股份有限公司 Air-conditioning and air conditioner coolant recycling and control method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107421152A (en) * 2017-08-17 2017-12-01 珠海格力电器股份有限公司 A kind of cold supply system and its control method
CN109579349A (en) * 2018-12-05 2019-04-05 南京天加环境科技有限公司 A kind of multi-line system and its control method reliable for operation
CN109682136A (en) * 2019-01-27 2019-04-26 珠海格力电器股份有限公司 Heat-reclamation multi-compressors and its method vacuumized
CN110173847A (en) * 2019-06-04 2019-08-27 珠海格力电器股份有限公司 A kind of control method, device, storage medium and air-conditioning recycling refrigerant
CN110260420A (en) * 2019-06-04 2019-09-20 珠海格力电器股份有限公司 Air-conditioning and air conditioner coolant recycling and control method

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