CN102207432A - Test tool for air conditioner indoor unit and method for online test and refrigerant recovery - Google Patents
Test tool for air conditioner indoor unit and method for online test and refrigerant recovery Download PDFInfo
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- CN102207432A CN102207432A CN2011100721088A CN201110072108A CN102207432A CN 102207432 A CN102207432 A CN 102207432A CN 2011100721088 A CN2011100721088 A CN 2011100721088A CN 201110072108 A CN201110072108 A CN 201110072108A CN 102207432 A CN102207432 A CN 102207432A
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Abstract
The invention provides a test tool for an air conditioner indoor unit, which is provided with a condenser unit for forming a refrigerant circulation loop with an evaporator unit in the air conditioner indoor unit and is further provided with a compressor and a four-way valve, wherein the compressor is selectively and serially connected or disconnected with an air inlet pipeline of the condenser unit via the four-way valve. On the other hand, the invention further provides a method for online test and refrigerant recovery of the air conditioner indoor unit, and the air conditioner indoor unit is the indoor unit with the compressor built therein. The method comprises the following steps: 1, connecting the indoor unit with the test tool provided by the invention in order to perform online test on the indoor unit; and 2, reversing the four-way valve after the online test is completed, so that the residual refrigerant in the indoor unit is recovered by the compressor to the condenser unit of the test tool. The test tool provided by the invention not only realizes the online test of the indoor unit, but can also recovers the refrigerant in the indoor unit, in addition, the refrigerant recovery cost is low as the fluorine recovery machine is not used.
Description
Technical field
The present invention relates to a kind of test fixture of air conditioner room unit and the on-line testing and the refrigerant recovering method of air conditioner room unit.
Background technology
For base station air conditioner, because need to use in a lot of unattended remote districts, so antitheft problem with regard to having become base station air conditioner to need emphasis to consider has been put into press indoorly for this reason, existing common air-conditioning production line and test fixture can't on-line testing be received fluorine.
For the built-in indoor set air-conditioning of this press, machine production line can't be produced in the common air-conditioning, the machine line is produced outside, but the just interior machine of the frock in now common outdoor machine of air-conditioner production line air conditioner test room, and the built-in this indoor apparatus of air conditioner of press requires to connect outer machine, but the outer machine that uses the built-in interior machine of this and press to match can't be received fluorine after the online testing.Common producer may bleed off refrigerant entirely, annotates again again, can cause giant's waste and environmental pollution like this.Better producer may use receives the fluorine machine refrigerant recovering, but it is higher to receive fluorine machine expense, and speed is slower,
For example, application number is 200310115481.2 Chinese patent, disclose a kind of by the method that reclaims refrigerant in the air conditioner, in the air conditioner that it constitutes connecting indoor set and off-premises station by connecting pipe, on off-premises station, be provided with two-port valve and T-valve, and comprise the operation that makes two-port valve and T-valve be in closure state simultaneously as connector; Working hole operation that is connected with the refrigerant recovering pump and the operation that refrigerant recovering pump and refrigerant recovering are connected with container with T-valve.The disclosure patent is higher by means of the receipts fluorine equipment cost of special use, can not realize on-line testing simultaneously and reclaim refrigerant.
Summary of the invention
At the problem that exists in the correlation technique, the object of the present invention is to provide a kind of test fixture of air conditioner room unit and the on-line testing and the refrigerant recovering method of air conditioner room unit, to solve after, can not reclaim the problem of cold-producing medium in the indoor set with low cost to the indoor set on-line testing.
For achieving the above object, according to an aspect of the present invention, a kind of test fixture of air conditioner room unit is provided, have: in order to air conditioner room unit in evaporator bank constitute the condenser group of refrigerant circulation loop, also have compressor and four-way valve, wherein, compressor is by four-way valve, is communicated with series system with the air inlet lateral line of condenser group selectively or disconnects.
Preferably, test fixture also has first stop valve and second stop valve, first stop valve is connected on the tapping side pipeline of condenser group, the air intake opening of the air entry of second stop valve, compressor, the exhausr port of compressor, condenser group is connected correspondingly with four ports of four-way valve respectively.
Preferably, the condenser group is provided with blower fan.
Preferably, air conditioner room unit is the indoor set that is built-in with compressor.
On the other hand, the present invention also provides a kind of on-line testing and refrigerant recovering method of air conditioner room unit, air conditioner room unit is the indoor set that is built-in with compressor, this method comprises the steps: step 1: indoor set and the aforementioned arbitrary test fixture of the present invention are coupled together, then by four-way valve in the test fixture, compressor in the test fixture and condenser group are disconnected, so that indoor set is carried out on-line testing; And step 2: after finishing on-line testing, four-way valve is commutated, so that compressor is with the condenser group of refrigerant-recovery residual in the indoor set to test fixture.
Preferably, before indoor set and test fixture are coupled together, in test fixture, inject cold-producing medium and indoor set is found time.
Preferably, when carrying out on-line testing, compressor keeps disconnecting with the air intake opening of second stop valve and condenser group; And when reclaiming residual cold-producing medium, compressor keeps being communicated with the air intake opening of second stop valve and condenser group.
Preferably, when carrying out on-line testing, first and second stop valves are in conducting state, and when reclaiming residual cold-producing medium, first stop valve is in cut-off state, and second stop valve is in conducting state.
Preferably, when the pressure of refrigerant line is zero in detecting indoor set, second stop valve is made as cut-off state, to finish recovery to residual cold-producing medium.
Preferably, described cold-producing medium is a freon.
Than prior art, beneficial effect of the present invention is: because test fixture of the present invention comprises four-way valve and compressor, and compressor is set to be communicated with selectively with the air inlet lateral line of condenser group or disconnect by four-way valve, therefore, not only can carry out on-line testing to air conditioner room unit, and under not by means of the situation of receiving the fluorine machine, can also the cold-producing medium of indoor set be reclaimed, i.e. the present invention has reduced the cost that reclaims cold-producing medium simultaneously.
Description of drawings
Fig. 1 shows the test fixture of air conditioner room unit of the present invention and the synoptic diagram that this test fixture is connected with air conditioner room unit, and the flow direction of cold-producing medium when indoor set carried out on-line testing is shown with arrow;
The synoptic diagram of the flow direction of cold-producing medium when Fig. 2 shows test fixture of the present invention the residual cold-producing medium of indoor set is reclaimed.
Embodiment
Referring to Fig. 1-2, the test fixture of air conditioner room unit of the present invention comprises: condenser group 6, compressor 4, four-way valve 5, wherein, condenser group 6 in order to air conditioner room unit to be measured in evaporator bank 11 constitute refrigerant circulation loops, compressor 4 is communicated with series system with the air inlet lateral line of condenser group 6 by four-way valve 5 or disconnects.
Further, illustrated among Fig. 1-2, test fixture of the present invention also comprises: first stop valve 8 and second stop valve 3.First stop valve 8 is connected on the tapping side pipeline of condenser group 6 (being communicated with the liquid outlet 62 of condenser group), and the air intake opening 61 of the air entry 41 of second stop valve 3, compressor 4, the exhausr port 42 of compressor 4, condenser group is connected correspondingly with four ports of four-way valve 5 respectively.Particularly, four-way valve 5 has D, C, four ports of S, E, and the D port is connected with the exhausr port 42 of compressor, the C port is connected with the air entry 41 of compressor, the S port is connected with second stop valve 3, the E port is connected with the air intake opening 61 of condenser group.Because the air entry of compressor 4 41 is by four-way valve 5, is communicated with second stop valve 3 selectively or disconnects, the exhausr port 42 of compressor 4 passes through four-way valve 5, is communicated with the air intake opening 61 of condenser group 6 selectively or disconnects.Fig. 1-2 also shows the blower fan 7 that is located on the condenser group 6.
Moreover Fig. 1-2 also shows, and test fixture of the present invention is used for the built-in air conditioner room unit 1 ' of compressor.This air conditioner room unit 1 ' not only has evaporator bank 11, also has a throttling valve 10 on compressor 1 that is connected with evaporator bank 11 and the liquid feeding side pipeline that is connected evaporator bank 11.When using test fixture of the present invention, for example can pass through first stop valve 8, second stop valve 3 with test fixture 1 " be connected with indoor set 1 '; in the back of finishing using (on-line testing and reclaim cold-producing medium and all finish the back); disconnect the rapid-acting coupling at the 3rd stop valve 2, the 4th stop valve 9 places, with indoor set 1 ' and test fixture 1 " separate.
By the above, the four-way valve 5 that is communicated with selectively on the air inlet lateral line of condenser group by compressor 4 and with compressor 4 or disconnects from this air inlet lateral line, test fixture of the present invention, can not only carry out on-line testing to indoor set, and after carrying out the test of online line, can also reclaim cold-producing medium in the indoor set with low cost.
On the other hand, the present invention also provides a kind of on-line testing and refrigerant recovering method of air conditioner room unit.Shown in Fig. 1-2, described air conditioner room unit is the indoor set 1 ' that is built-in with compressor 1, this method comprises: step 1: with indoor set 1 ' and test fixture 1 " couple together; then by test fixture 1 " middle four-way valve 4, with test fixture 1 " middle compressor 4 and 6 disconnections of condenser group, so that indoor set 1 ' is carried out on-line testing; And step 2: after finishing on-line testing, four-way valve 4 is commutated so that compressor 4 with refrigerant-recovery residual in the indoor set 1 ' to test fixture 1 " condenser group 6.With indoor set 1 ' and test fixture 1 " couple together before, to test fixture 1 " in injection cold-producing medium and indoor set 1 ' found time.
The flow direction of cold-producing medium when Fig. 1 shows on-line testing, with the cold-producing medium of High Temperature High Pressure gaseous state from the exhausr port discharge of compressor 1, successively through the 3rd stop valve 2, second stop valve 3, the S port of four-way valve 4 and E port flow are to condenser group 6, in condenser group 6, carry out cold-producing medium liquefy after the heat interchange, then liquid refrigerant is discharged from the liquid outlet 62 of condenser group 6, afterwards successively through first stop valve 2, the 4th stop valve 9, throttling valve 10 enters evaporator bank 11, in evaporator bank 11, carry out becoming gaseous state after the heat interchange, be back to the air entry of compressor 1 then.Obviously, when carrying out on-line testing, four stop valves 2,3,8,9 all are in conducting state, and compressor 4 keeps disconnecting with the air intake opening 61 of second stop valve 3 and condenser group, and this is by being port E and S conducting, port D and C conducting with four-way valve 4 commutations.
The process that indoor set 1 ' is reclaimed cold-producing medium is described referring to Fig. 2, first stop valve 8 was in the compressor 1 that cut-off state, other stop valves 2,3,9 be in conducting state, indoor set 1 ' and was de-energized and test fixture 1 this moment " in compressor 4 powered on, four-way valve 4 is also powered on being port C and S conducting, port D and E conducting by commutation.Thereby compressor 4 keeps being communicated with the air intake opening 61 of second stop valve 3 and condenser group, the residual refrigerant-recovery in the indoor set 1 ' can be arrived condenser group 6.The flow direction of cold-producing medium among comparison diagram 1 and Fig. 2, in Fig. 2, cold-producing medium is entering test fixture 1 " afterwards, behind port S, port C, compressor air suction mouth 41, exhaust outlet of compressor 42, D port, E port, flow to condenser group 6 successively, to realize refrigerant-recovery.
In other words, after indoor set 1 ' on-line testing is finished, indoor set 1 ' outage, power on for four-way valve 5, frock with compressor 4, blower fan (outer blower fan) 7, four-way valve 5 commutations, D and the conducting of E port, S and the conducting of C port, close first stop valve 8 then, indoor set 1 ' refrigerant begins to be recovered to frock 1 " in, indoor set 1 ' connects tensimeter, after tensimeter detects pressure arrival 0pa; close tracheae stop valve 3, cuts off the power supply for four-way valve 5, frock with compressor 4, blower fan 7.Among the present invention, cold-producing medium is preferably freon.
It is whether can run well, reach predetermined function etc. for the testing air conditioner air conditioner indoor machine that air conditioner room unit is carried out on-line testing.Further preferably, test fixture of the present invention is used for the built-in indoor set of compressor of base station air conditioner, and this base station air conditioner is the single-cooling type air-conditioning.
Thus, method provided by the invention is not only carried out on-line testing to the built-in indoor set of compressor, and after the four-way valve in the test fixture is commutated, can also the cold-producing medium in this indoor set be reclaimed.And because not by means of receiving the fluorine machine, it is lower therefore to reclaim the cold-producing medium cost.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the test fixture of an air conditioner room unit has: in order to described air conditioner room unit in evaporator bank (11) constitute the condenser group (6) of refrigerant circulation loop, it is characterized in that,
Also have compressor (4) and four-way valve (5), wherein, described compressor (4) is by described four-way valve (5), is communicated with series system with the air inlet lateral line of described condenser group (6) selectively or disconnects.
2. the test fixture of air conditioner room unit according to claim 1 is characterized in that, also has first stop valve (8) and second stop valve (3),
Wherein, described first stop valve (8) is connected on the tapping side pipeline of described condenser group (6), the air intake opening (61) of the exhausr port (42) of the air entry (41) of described second stop valve (3), described compressor, described compressor, described condenser group is connected correspondingly with four ports of described four-way valve (5) respectively.
3. the test fixture of air conditioner room unit according to claim 2 is characterized in that, described condenser group (6) is provided with blower fan (7).
4. according to the test fixture of each described air conditioner room unit among the claim 1-3, it is characterized in that described air conditioner room unit is the indoor set (1 ') that is built-in with compressor.
5. the on-line testing of an air conditioner room unit and refrigerant recovering method, described air conditioner room unit is the indoor set (1 ') that is built-in with compressor, it is characterized in that, comprises the steps:
Step 1: described indoor set (1 ') and the described test fixture of aforementioned each claim (1 ") are coupled together; then by four-way valve (4) in the described test fixture (1 "), compressor (4) in the described test fixture (1 ") and described condenser group (6) are disconnected, so that described indoor set (1 ') is carried out on-line testing; And
Step 2: after finishing described on-line testing, four-way valve (4) in the described test fixture (1 ") is commutated, with by compressor (4) in the described test fixture (1 ") with the described condenser group (6) extremely of refrigerant-recovery in the described indoor set (1 ').
6. air conditioner room unit on-line testing according to claim 5 and refrigerant recovering method,
It is characterized in that, before described indoor set (1 ') and described test fixture (1 ") are coupled together, injection cold-producing medium and described indoor set (1 ') found time in described test fixture (1 ").
7. according to claim 5 or 6 described air conditioner room unit on-line testing and refrigerant recovering methods, it is characterized in that,
When carrying out described on-line testing, described compressor (4) keeps disconnecting with the air intake opening (61) of described second stop valve (3) and described condenser group; And
When reclaiming described residual cold-producing medium, described compressor (4) keeps being communicated with the air intake opening (61) of described second stop valve (3) and described condenser group.
8. air conditioner room unit on-line testing according to claim 7 and refrigerant recovering method is characterized in that,
When carrying out described on-line testing, described first stop valve (8) and second stop valve (3) are in conducting state,
When reclaiming described residual cold-producing medium, described first stop valve (8) is in cut-off state, and described second stop valve (3) is in conducting state.
9. air conditioner room unit on-line testing according to claim 8 and refrigerant recovering method,
It is characterized in that, when the pressure of refrigerant line is zero in detecting described indoor set (1 '), described second stop valve (3) is made as cut-off state, with the recovery of end described residual cold-producing medium.
10. according to each described air conditioner room unit on-line testing and refrigerant recovering method among claim 5-6, the 7-9, it is characterized in that described cold-producing medium is a freon.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100721088A CN102207432A (en) | 2011-03-24 | 2011-03-24 | Test tool for air conditioner indoor unit and method for online test and refrigerant recovery |
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| CN2011100721088A CN102207432A (en) | 2011-03-24 | 2011-03-24 | Test tool for air conditioner indoor unit and method for online test and refrigerant recovery |
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Cited By (7)
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| CN102809967A (en) * | 2012-08-13 | 2012-12-05 | 海信（山东）空调有限公司 | Automatic detection method for control panel of air-conditioning indoor unit |
| CN103033003A (en) * | 2011-10-10 | 2013-04-10 | 松下电器研究开发(苏州)有限公司 | Refrigerant recovery device and recovery control method |
| CN103174659A (en) * | 2011-12-20 | 2013-06-26 | 诺沃皮尼奥内有限公司 | Test arrangement for a centrifugal compressor stage |
| CN104236184A (en) * | 2013-06-17 | 2014-12-24 | 海尔集团公司 | Air conditioner refrigerant recovery detecting method |
| CN105674435A (en) * | 2016-01-25 | 2016-06-15 | 珠海格力电器股份有限公司 | Refrigerant filling method of air conditioner outdoor unit |
| CN108181124A (en) * | 2018-01-31 | 2018-06-19 | 深圳市艾特网能技术有限公司 | A kind of air-conditioner set joint debugging fixture system and its control method |
| CN110308003A (en) * | 2019-03-29 | 2019-10-08 | 武汉格罗夫氢能汽车有限公司 | A kind of air-conditioning system refrigeration cycle Bench test methods |
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| CN105674435A (en) * | 2016-01-25 | 2016-06-15 | 珠海格力电器股份有限公司 | Refrigerant filling method of air conditioner outdoor unit |
| CN105674435B (en) * | 2016-01-25 | 2018-11-02 | 珠海格力电器股份有限公司 | Refrigerant filling method of air conditioner outdoor unit |
| CN108181124A (en) * | 2018-01-31 | 2018-06-19 | 深圳市艾特网能技术有限公司 | A kind of air-conditioner set joint debugging fixture system and its control method |
| CN108181124B (en) * | 2018-01-31 | 2023-05-05 | 深圳市艾特网能技术有限公司 | Air conditioning unit joint debugging tool system and control method thereof |
| CN110308003A (en) * | 2019-03-29 | 2019-10-08 | 武汉格罗夫氢能汽车有限公司 | A kind of air-conditioning system refrigeration cycle Bench test methods |
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Application publication date: 20111005 |