CN103499168A - Connecting device and air conditioner refrigerant injection device and method - Google Patents
Connecting device and air conditioner refrigerant injection device and method Download PDFInfo
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- CN103499168A CN103499168A CN201310440014.0A CN201310440014A CN103499168A CN 103499168 A CN103499168 A CN 103499168A CN 201310440014 A CN201310440014 A CN 201310440014A CN 103499168 A CN103499168 A CN 103499168A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 186
- 238000002347 injection Methods 0.000 title claims abstract description 166
- 239000007924 injection Substances 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 85
- 239000007789 gas Substances 0.000 claims description 105
- 239000012530 fluid Substances 0.000 claims description 65
- 238000004378 air conditioning Methods 0.000 claims description 36
- 238000009530 blood pressure measurement Methods 0.000 claims description 15
- 239000007943 implant Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 29
- 239000002699 waste material Substances 0.000 abstract description 13
- 239000002826 coolant Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a connecting device and an air conditioner refrigerant injection device with the connecting device and an air conditioner refrigerant injection method. The connecting device comprises an injection end, an output end and a recovery device, the recovery device comprises a gas recovery device, a first switch, a liquid recovery device and a second switch, the gas recovery device is used for recovering gas when the injection end begins to inject refrigerants, and the liquid recovery device is used for recovering residual refrigerants between the injection end and the output end after the injection end stops injecting the refrigerants. According to the connecting device and the air conditioner refrigerant injection device and method, the problems of refrigerant leakage and refrigerant waste caused when refrigerant injection is carried out on an outdoor unit of an air conditioner can be greatly solved, after the refrigerant injection is carried out on the outdoor unit of the air conditioner, the refrigerant leakage and the refrigerant waste can be effectively prevented, refrigerant recovery can be carried out, safety of an injection person is guaranteed, meanwhile the gas can be prevented from being accompanied with the refrigerants to be injected in the outdoor unit of the air conditioner in the injection process of the refrigerants, and therefore the reliable operation of the air conditioner is guaranteed.
Description
Technical field
The present invention relates to household appliance technical field, the refrigerant that relates in particular to air-conditioning injects.
Background technology
Along with the development in household electrical appliance market, inject the appearance successively of the air-conditioner of various refrigerants.And, due to the restriction of the manufacturing process of service life of air-conditioning and air-conditioning, after using for a long time, the refrigerant in air-conditioning there will be leakage in various degree, thereby needs the filling refrigerant make air-conditioning reenter good working order.But, in the prior art, there will be certain secondary refrigerant leakage in the process of filling refrigerant, and the refrigerant of revealing can produce certain pollution to environment; Simultaneously, the situation that also there will be gas to follow refrigerant to sneak into, therefore, refrigerant be injected into the difficult problem for after-sales service.And, along with emerging of inflammability refrigerant air-conditioning, facing on the inflammable and explosive problem of inflammability refrigerant, after how realizing safety filling refrigerant and guaranteeing coolant charging, the dependability of air-conditioning becomes current urgent problem especially.
In traditional technology, the coolant charging mode of air-conditioning as shown in fig. 1, Fig. 1 is the structural representation of refrigerant injection device one embodiment in prior art, this mode by connecting hose 103 by the coolant injection of 101 li of refrigerant storage devices in air-conditioner outdoor unit 105, convenient in order to fill, the maintenance personal normally first utilizes connecting hose 103 that air-conditioner outdoor unit 105 directly is connected with refrigerant storage device 101, start subsequently, and open successively the first triple valve 102 and the second triple valve 104, start to carry out coolant charging, at this moment the refrigerant that the gas in connecting hose 103 can be followed injection is filled into air-conditioner outdoor unit 105 together.In this process, if need to prevent that gas from entering in air-conditioner outdoor unit 105, can only be when start, at first connecting hose 103 is installed, and open the first triple valve 102, allow refrigerant inject connecting hose 103, the gas of connecting hose 103 inside is discharged, again connecting hose 103 is connected to air-conditioner outdoor unit 105, until connecting hose 103 is connected to rear first triple valve 102 of just closing of air-conditioner outdoor unit 105 fully, and then start, open the first triple valve 102 and the second triple valve 104 carries out coolant charging simultaneously, in this process, the refrigerant that injects connecting hose 103 can flow out in a large number, cause serious waste and pollution, and after refrigerant has been annotated, after need to closing successively the second triple valve 104 and the first triple valve 102, dismantle connecting hose 103, now, refrigerant residual in connecting hose 103 can't reclaim again, after connecting hose 103 is disassembled, residual refrigerant can be lost in atmosphere, thereby has again caused waste and the contamination phenomenon of refrigerant, especially for the inflammability refrigerant, adopt the refrigerant of this kind of mode to inject, a large amount of leakages of refrigerant are very large potential safety hazards.
Summary of the invention
Main purpose of the present invention has been to provide a kind of jockey, and the refrigerant injection device and the method that adopt the air-conditioning of this jockey, after being intended to air-conditioner outdoor unit is carried out to coolant charging, effectively prevent leakage and the waste of refrigerant, carry out refrigerant recovering, guarantee the personnel's that fill safety, can, in the injection process of refrigerant, avoid gas to follow refrigerant to inject air-conditioner outdoor unit simultaneously.
The invention provides a kind of jockey, comprise the injection end that injects fluid and the output of exporting fluid, described injection end communicates with described output, also comprises the retracting device that is connected to described injection end and described output, and described retracting device comprises:
Gas concentration unit, communicate with described injection end and described output, for when described injection end starts to inject fluid, reclaims the gas in described jockey;
The first switch, described gas concentration unit communicates with described injection end and described output by described the first switch;
Liquid withdrawal system, communicate with described injection end and described output, for after described injection end stops injecting fluid, reclaims the fluid between described injection end and described output;
Second switch, described liquid withdrawal system communicates with described injection end and described output by described second switch;
Described gas concentration unit communicates by described the first switch and described second switch with described liquid withdrawal system.
Preferably, also comprise:
The first valve, be arranged between described injection end and described the first switch, and described injection end communicates with described the first switch, described second switch and described output by described the first valve;
The second valve, be arranged between described output and described second switch, and described output communicates with described the first switch, described second switch and described injection end by described the second valve.
Preferably, also comprise vacuum withdraw device, described vacuum withdraw device is connected in described the first valve/second valve.
Preferably, also be provided with device for pressure measurement between described second switch and described liquid withdrawal system.
The present invention also provides a kind of refrigerant injection device of air-conditioning, comprise the refrigerant storage device, with the described jockey of claim 1 to 4 any one, described refrigerant storage device is connected by described injection end with described jockey, and described jockey is connected by described output with the off-premises station of air-conditioning.
The present invention also provides a kind of refrigerant method for implanting of air-conditioning, off-premises station injection refrigerant by from the refrigerant injection device to air-conditioning, described refrigerant injection device comprises refrigerant storage device, jockey claimed in claim 1, described refrigerant storage device is provided with the 3rd valve be connected with described injection end, and described air-conditioner outdoor unit is provided with the 4th valve be connected with described output; The refrigerant method for implanting of described air-conditioning comprises the following steps:
Guarantee that described gas concentration unit and described liquid withdrawal system are in vacuum state, described the first switch, second switch, the 3rd valve and the 4th valve are in closed condition;
Open described the 3rd valve and the first switch, by described injection end, inject refrigerant, described gas concentration unit is closed described the first switch after reclaiming the gas in described jockey;
Open described the 4th valve, the refrigerant that described output injects described injection end exports air-conditioner outdoor unit to;
Close successively described the 4th valve and described the 3rd valve, open described second switch, described liquid withdrawal system is closed described second switch after reclaiming the refrigerant between described the 3rd valve and described the 4th valve, completes implant operation.
Preferably, described jockey also comprises the first valve of being arranged between described injection end and described the first switch, is arranged at the second valve between described output and described second switch, described injection end communicates with described the first switch, described second switch and described output by described the first valve, and described output communicates with described the first switch, described second switch and described injection end by described the second valve;
Describedly guarantee that described the first switch, second switch, the 3rd valve and the 4th valve also comprise in the time of closed condition: guarantee that described the first valve and described the second valve are in closed condition;
Described by also comprising before described injection end injection refrigerant: as to open described the first valve and described the second valve;
The described implant operation that completes also comprises before: close described the first valve and described the second valve.
Preferably, described jockey also comprises the vacuum withdraw device that is connected in described the first valve; Describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: open described the first valve, the first switch and second switch, close described the second valve, utilize described vacuum withdraw device extracting gases, make described gas concentration unit and described liquid withdrawal system in vacuum state;
Or described jockey also comprises the vacuum withdraw device that is connected in described the second valve; Describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: open described the second valve, the first switch and second switch, close described the first valve, utilize described vacuum withdraw device extracting gases, make described gas concentration unit and described liquid withdrawal system in vacuum state.
Preferably, also be provided with device for pressure measurement between described second switch and described liquid withdrawal system, describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: described device for pressure measurement is detected force value, until the force value of its measurement while being preset value, judges that described gas concentration unit and described liquid withdrawal system are in vacuum state.
Preferably, described gas concentration unit and described liquid withdrawal system are air bag, describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state:
The gas of described gas concentration unit and described liquid withdrawal system is extruded, made described gas concentration unit and described liquid withdrawal system in vacuum state.
The invention provides a kind of jockey, and the refrigerant injection device and the method that adopt the air-conditioning of this jockey, described jockey comprises the injection end that injects fluid and the output of exporting fluid, described injection end communicates with described output, also comprise the retracting device that is connected to described injection end and described output, described retracting device comprises for when described injection end starts to inject fluid, reclaim the gas concentration unit of gas in described jockey (gas of bringing in original and fluid in jockey), for after described injection end stops injecting fluid, reclaim the liquid withdrawal system of residual liquid between described injection end and described output (reclaimed complete gas after remaining fluid be liquid), this jockey can greatly solve the secondary refrigerant leakage that causes when air-conditioner outdoor unit is carried out to coolant injection and the problem of waste, after air-conditioner outdoor unit is carried out to coolant charging, can effectively prevent leakage and the waste of refrigerant, carry out refrigerant recovering, guarantee the personnel's that fill safety, simultaneously can be in the injection process of refrigerant, avoid gas to follow refrigerant to inject air-conditioner outdoor unit, thereby guarantee the reliability service of air-conditioning.
The accompanying drawing explanation
Fig. 1 is the structural representation of refrigerant injection device one embodiment in prior art;
Fig. 2 is the structural representation of jockey the first embodiment of the present invention;
Fig. 3 is the structural representation of jockey the second embodiment of the present invention;
Fig. 4 is the structural representation of jockey of the present invention the 3rd embodiment;
Fig. 5 is the structural representation of jockey of the present invention the 4th embodiment;
Fig. 6 is the structural representation of refrigerant injection device the first embodiment of the present invention;
Fig. 7 is the structural representation of refrigerant injection device the second embodiment of the present invention;
Fig. 8 is the structural representation of refrigerant injection device the 3rd embodiment of the present invention;
Fig. 9 is the structural representation of refrigerant injection device the 4th embodiment of the present invention;
Figure 10 is the flow chart of refrigerant method for implanting one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Further illustrate technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The invention provides a kind of jockey.
With reference to Fig. 2, Fig. 2 is the structural representation of jockey the first embodiment of the present invention; The jockey 1 of this embodiment comprises the injection end 10 that injects fluid and the output 20 of exporting fluid, described injection end 10 communicates with described output 20, also comprise the retracting device 30 that is connected to described injection end 10 and described output 20, described retracting device 30 comprises: gas concentration unit 301, with described injection end 10 and described output 20, communicate, for when described injection end 10 starts to inject fluid, reclaim the gas in described jockey; The first switch 302, described gas concentration unit 301 communicates with described injection end 10 and described output 20 by described the first switch 302; Liquid withdrawal system 303, communicate with described injection end 10 and described output 20, for after described injection end 10 stops injecting fluid, reclaims the fluid between described injection end 10 and described output 20; Second switch 304, described liquid withdrawal system 303 communicates with described injection end 10 and described output 20 by described second switch 304; Described gas concentration unit 301 communicates by described the first switch 302 and described second switch 304 with described liquid withdrawal system 303, and in the present embodiment, each parts interconnect by pipeline and communicate.
Above-mentioned jockey 1 can be for the Safety Injection fluid, and can not make the gas of bringing in linkage section and fluid enter injected equipment with fluid, and its specific works process is as follows:
Before stating in the use jockey 1, at first check that whether described the first switch 302 and described second switch 304 are in closed condition, confirm that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state simultaneously, when above-mentioned two conditions all are met, above-mentioned jockey 1 is connected to external equipment, and makes described injection end 10 and described output 20 all in closed state.
Now, can start to inject fluid and (from the initial fluid injected of the storage facilities of fluid, contain certain gas of taking out of from storage space, after above-mentioned gas is recovered, the fluid injected in subsequent step is liquid), its concrete injection mode is: at first open described injection end 10, the first switch 302, inject fluid from described injection end 10 in the mode of low discharge, now fluid is along with the action of said mechanism starts to enter described retracting device 30 from described injection end 10, because the density of the liquid that injects fluid is greater than gas, therefore when described fluid enters retracting device 30 and be full of its inside, the gas that gas in described jockey 1 and injection fluid are brought into is under the extruding of liquid, enter the described gas concentration unit 301 in vacuum state, also start to carry out the recovery of gas.
After the process of above-mentioned gas recovery is complete, close described the first switch 302; Now in the mode of large flow, from described injection end 10, inject fluids, simultaneously, open described output 20, the injection fluid after gas recovery, by described output 20 outputs, is also started by described jockey 1 to external equipment filling fluid.
After the process of above-mentioned filling fluid is complete, close successively described injection end 10, output 20, and described second switch 304 is opened, now, due to described liquid withdrawal system 303 in vacuum state, therefore, be positioned at the fluid of described jockey 1 under the atmospheric pressure effect, flow into described liquid withdrawal system 303, thereby start to carry out the recovery of residual fluid (, after gas recovery, wherein only remaining the fluid of liquid).
After the recovery residual fluid is complete, close described second switch 304, by described jockey 1 dismounting, complete the injection of fluid.
Further, with reference to Fig. 3, Fig. 3 is the structural representation of jockey the second embodiment of the present invention; This embodiment and above-mentioned the first embodiment difference are, described jockey 1 also comprises: the first valve 305, be arranged between described injection end 10 and described the first switch 302, described injection end 10 communicates with described the first switch 302, described second switch 304 and described output 20 by described the first valve 305; The second valve 306, be arranged between described output 20 and described second switch 304, and described output 20 communicates with described the first switch 302, described second switch 304 and described injection end 10 by described the second valve 306.
Can be for the Safety Injection fluid according to above-mentioned jockey 1, and can not make the gas of bringing in linkage section and fluid enter injected equipment with fluid, its specific works process is as follows:
Before stating in the use jockey 1, at first check that whether described the first switch 302 and described second switch 304 are in closed condition, confirm that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state simultaneously, when above-mentioned two conditions all are met, above-mentioned jockey 1 is connected to external equipment, and makes described injection end 10 and described output 20 all in closed state.
Now, can start to inject fluid and (from the initial fluid injected of the storage facilities of fluid, contain certain gas of taking out of from storage space, after above-mentioned gas is recovered, the fluid injected in subsequent step is liquid), its concrete injection mode is: at first open described injection end 10, the first valve 305, the second valve 306, the first switch 302, inject fluid from described injection end 10 in the mode of low discharge, now fluid is along with the action of said mechanism starts to enter described retracting device 30 from described injection end 10 through the first valve 305, because the density of the liquid that injects fluid is greater than gas, therefore when described fluid enters retracting device 30 and be full of its inside, the gas that gas in described jockey 1 and injection fluid are brought into is under the extruding of liquid, enter the described gas concentration unit 301 in vacuum state, also start to carry out the recovery of gas.
After the process of above-mentioned gas recovery is complete, close described the first switch 302; Now in the mode of large flow, from described injection end 10, inject fluids, simultaneously, open described output 20, the injection fluid after gas recovery, by described output 20 outputs, is also started by described jockey 1 to external equipment filling fluid.
After the process of above-mentioned filling fluid is complete, close successively described injection end 10, output 20, and described second switch 304 is opened, now, in vacuum state, therefore, be positioned at the fluid of described jockey 1 under the atmospheric pressure effect due to described liquid withdrawal system 303, flow into described liquid withdrawal system 303, thereby start to carry out the recovery of residual fluid.
After the recovery residual fluid is complete, close described second switch 304, described the first valve 305 and the second valve 306, by described jockey 1 dismounting, complete the injection of fluid.
Further, jockey 1 of the present invention also comprises the vacuum withdraw device (not shown) that is connected in described the first valve 305/ second valve 306.Described vacuum withdraw device can more accurately guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state.When described vacuum withdraw device is connected in described the first valve 305, at first the port that described the first valve 305 is connected in to described vacuum withdraw device is opened, and by other port shutdowns of described the first valve 305, close described the second valve 306 simultaneously, open described the first switch 302 and second switch 304, now can start to carry out vacuum drawn, after extracting as vacuum by described gas concentration unit 301 and described liquid withdrawal system 303, at first close described the first switch 302 and second switch 304, close again after described the first valve 305 is connected in the port of described vacuum withdraw device, now complete the vacuum drawn action, in like manner, when described vacuum withdraw device is connected in described the second valve 306, also can complete equally this vacuum drawn action.
Further, as shown in Figures 4 and 5, Fig. 4 is the structural representation of jockey of the present invention the 3rd embodiment; Fig. 5 is the structural representation of jockey of the present invention the 4th embodiment; The difference of described the 3rd embodiment and above-mentioned the first embodiment (Fig. 2), described the 4th embodiment and above-mentioned the second embodiment (Fig. 3) is, in order to guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state, and hold the time better in the process that reclaims fluid, increase work efficiency, described jockey 1 also comprises the device for pressure measurement 307 be arranged between described second switch 304 and described liquid withdrawal system 303.
The force value of measuring when described device for pressure measurement 307 is during lower than preset value, can think that it is in vacuum state, in the present embodiment, this preset value is preferably 5Pa, but the present invention is not limited to 5Pa, if can reach make described gas concentration unit 301 and described liquid withdrawal system 303 in vacuum state or.And when carrying out the recovery of residual fluid, when described device for pressure measurement 307 measured values are the 1MPa left and right, the recovery that shows fluid is substantially complete, now can carry out next step, thereby avoided the time delay caused because of the inaccuracy of estimating to wait for and poor efficiency, thereby or caused waste and pollute because the appraisal mistake finishes removal process in advance.
The present invention also provides a kind of refrigerant injection device 2 of air-conditioning, and with reference to Fig. 2 to Fig. 9, Fig. 6 is the structural representation of refrigerant injection device the first embodiment of the present invention; Fig. 7 is the structural representation of refrigerant injection device the second embodiment of the present invention; Fig. 8 is the structural representation of refrigerant injection device the 3rd embodiment of the present invention; Fig. 9 is the structural representation of refrigerant injection device the 4th embodiment of the present invention; The refrigerant injection device 2 of the air-conditioning of the various embodiments described above comprises refrigerant storage device 21, the described jockey 1 of above-mentioned first to fourth embodiment, described refrigerant storage device 21 is connected by described injection end 10 with described jockey 1, and described air-conditioner outdoor unit 3 is connected by described output 20 with described jockey 1.
When described refrigerant storage device 21 starts to inject refrigerant by described injection end 10, described gas concentration unit 301 reclaims the mobile interior air of described jockey 1 of refrigerant of following injection; And at described refrigerant storage device 21 after described air-conditioner outdoor unit 3 filling refrigerants are complete, described refrigerant storage device 21 stops injecting refrigerant by described injection end 10, and described liquid withdrawal system reclaims the refrigerant between described injection end 10 and described output 20.The refrigerant injection device 2 of this air-conditioning can greatly solve the secondary refrigerant leakage that causes when air-conditioner outdoor unit is carried out to coolant injection and the problem of waste, after air-conditioner outdoor unit 3 is carried out to coolant charging, can effectively prevent leakage and the waste of refrigerant, carry out refrigerant recovering, for inflammable and explosive refrigerant, can also guarantee the personnel's that fill safety, simultaneously can be in the injection process of refrigerant, avoid air to inject air-conditioner outdoor unit 3 with refrigerant, thereby guarantee the reliability service of air-conditioning.
The present invention also provides a kind of refrigerant method for implanting of air-conditioning.
As shown in Fig. 2 and Figure 10, Figure 10 is the flow chart of refrigerant method for implanting one embodiment of the present invention.The present embodiment refrigerant method for implanting injects refrigerant by refrigerant injection device 2 to described air-conditioner outdoor unit 3, described refrigerant injection device 2 comprises refrigerant storage device 21, described jockey 1, described refrigerant storage device 2 is provided with the 3rd valve 22 be connected with described injection end 10, and the off-premises station 3 of described air-conditioning is provided with the 4th valve 31 be connected with described output 20; The refrigerant method for implanting of described air-conditioning comprises the following steps:
S100, guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state, described the first switch 302, second switch 304, the 3rd valve 22 and the 4th valve 31 are in closed condition;
S200, open described the 3rd valve 22 and the first switch 302, by described injection end 10, inject refrigerants, after the gas that described gas concentration unit 301 reclaims in refrigerants, close described the first switch 302;
S300, open described the 4th valve 31, the refrigerant that described output 20 injects described injection end 10 exports air-conditioner outdoor unit 3 to;
S400, close described the 4th valve 31 and described the 3rd valve 22 successively, open described second switch 304, after the refrigerant that described liquid withdrawal system 303 reclaims between described the 3rd valve 22 and described the 4th valve 31, close described second switch 304, complete implant operation.
Above-mentioned refrigerant method for implanting can be for the Safety Injection refrigerant, and the method has been avoided in the linkage section and follow refrigerant to enter the air of linkage section from refrigerant storage device 21, enters air-conditioner outdoor unit 3 along with the injection of refrigerant.Adopt in step S400 and first close after described the 4th valve 31 order of closing described the 3rd valve 22, its role is to: in the valve junction, because can not be very seals, may there is gap to exist, if what first close is the 3rd valve 22, because can there be suction in the process air-conditioner outdoor unit injecting refrigerant always, after in pipeline, air pressure reduces, under atmospheric effect, easily enter air from gap.Therefore adopt in the present embodiment and first close after the 4th valve 31 order of closing the 3rd valve 22.
This refrigerant injection device 2 injects refrigerants and reclaims the specific works process of residual refrigerant as follows:
At first, check that whether described first switch 302 of above-mentioned jockey 1 and described second switch 304 are in closed condition, confirm that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state simultaneously, when above-mentioned two conditions all are met, above-mentioned injection end 10 is connected to refrigerant storage device 21 by described the 3rd valve 22, above-mentioned output 20 is connected to the off-premises station 3 of described air-conditioning by described the 4th valve 31, and makes described the 3rd valve 22 and described the 4th valve 31 all in closed condition.
Now, can start to inject refrigerant, its concrete injection mode is: at first open the first switch 302, and described the 3rd valve 22 is opened to a little opening, inject refrigerant by described injection end 10 in the mode of low discharge, then, now refrigerant is along with the action of said mechanism starts to enter described retracting device 30 from described injection end 10, because the density of the refrigerant injected is greater than air, therefore when described refrigerant enters retracting device 30 and be full of its inside, air in described jockey 1 is under the extruding of refrigerant, enter the described gas concentration unit 301 in vacuum state, also start to carry out the recovery of air.
After the process of above-mentioned recovery air is complete, close described the first switch 302; Now open large the 3rd valve 22, mode with large flow is injected refrigerant from described injection end 10, simultaneously, open described the 4th valve 31, export by described output 20 the injection refrigerant reclaimed after air to air-conditioner outdoor unit 3, also start by described jockey 1 to air-conditioner outdoor unit 3 filling refrigerants.
After the process of above-mentioned filling refrigerant is complete, close successively described the 4th valve 31, the 3rd valve 22, and described second switch 304 is opened, now, in vacuum state, therefore, be positioned at the refrigerant of described jockey 1 under the atmospheric pressure effect due to described liquid withdrawal system 303, flow into described liquid withdrawal system 303, thereby start to carry out the recovery of residual refrigerant.
Reclaim residual refrigerant complete after, close described second switch 304, by 1 dismounting of described jockey, complete the injection of refrigerant.
Further, with reference to Fig. 7, described jockey 1 also comprises the first valve 305 of being arranged between described injection end 10 and described the first switch 302, is arranged at the second valve 306 between described output 20 and described second switch 304, described injection end 10 communicates with described the first switch 302, described second switch 304 and described output 20 by described the first valve 305, and described output 20 communicates with described the first switch 302, described second switch 304 and described injection end 10 by described the second valve 306;
Describedly guarantee that described the first switch 302, second switch 304, the 3rd valve 22 and the 4th valve 31 also comprise in the time of closed condition: guarantee that described the first valve 305 and described the second valve 306 are in closed condition;
Described by also comprising before described injection end 10 injection refrigerants: as to open described the first valve 305 and described the second valve 306;
The described implant operation that completes also comprises before: close described the first valve 305 and described the second valve 306.
Above-mentioned refrigerant method for implanting can be for the Safety Injection refrigerant, and the method has been avoided linkage section and in refrigerant storage device 21, follow refrigerant to enter the air of linkage section, enter air-conditioner outdoor unit 3 along with the injection of refrigerant, this refrigerant injection device 2 injects refrigerants and reclaims the specific works process of residual refrigerant as follows:
At first, check that whether described first switch 302 of above-mentioned jockey 1 and described second switch 304 are in closed condition, confirm that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state simultaneously, when above-mentioned two conditions all are met, above-mentioned injection end 10 is connected to refrigerant storage device 21 by described the 3rd valve 22, above-mentioned output 20 is connected to the off-premises station 3 of described air-conditioning by described the 4th valve 31, and makes described the 3rd valve 22 and described the 4th valve 31 all in closed condition.
Now, can start to inject refrigerant, its concrete injection mode is: at first open the first switch 302, the first valve 305, the second valve 306, and described the 3rd valve 22 is opened to a little opening, inject refrigerant by described injection end 10 in the mode of low discharge, then, now refrigerant is along with the action of said mechanism starts to enter described retracting device 30 from described injection end 10 through the first valve 305, because the density of injecting refrigerant is greater than air, therefore when described refrigerant enters retracting device 30 and be full of its inside, air in described jockey 1 is under the extruding of refrigerant, enter the described gas concentration unit 301 in vacuum state, also start to carry out the recovery of air.
After the process of above-mentioned recovery air is complete, close described the first switch 302; Now open large the 3rd valve 22, mode with large flow is injected refrigerant from described injection end 10, simultaneously, open described the 4th valve 31, export by described output 20 the injection refrigerant reclaimed after air to air-conditioner outdoor unit 3, also start by described jockey 1 to air-conditioner outdoor unit 3 filling refrigerants.
After the process of above-mentioned filling refrigerant is complete, close successively described the 4th valve 31, the 3rd valve 22, and described second switch 304 is opened, now, in vacuum state, therefore, be positioned at the refrigerant of described jockey 1 under the atmospheric pressure effect due to described liquid withdrawal system 303, flow into described liquid withdrawal system 303, thereby start to carry out the recovery of residual refrigerant.
Reclaim residual refrigerant complete after, close described second switch 304, close described the first valve 305 and the second valve 306, by 1 dismounting of described jockey, complete the injection of refrigerant.
Further, the jockey 1 of described refrigerant injection device 2 also comprises the vacuum withdraw device (not shown) that is connected in described the first valve 305; In described step S100, make described gas concentration unit 301 and described liquid withdrawal system 303 also comprise in vacuum state: to open described the first valve 305, the first switch 302 and second switch 304, close described the second valve 306, utilize described vacuum withdraw device (not shown) extracting air, make described gas concentration unit 301 and described liquid withdrawal system 303 in vacuum state; Or described jockey 1 also comprises the vacuum withdraw device (not shown) that is connected in described the second valve 306; In described step S100, make described gas concentration unit 301 and described liquid withdrawal system 303 also comprise in vacuum state: to open described the second valve 306, the first switch 302 and second switch 304, close described the first valve 305, utilize described vacuum withdraw device (not shown) extracting air, make described gas concentration unit 301 and described liquid withdrawal system 303 in vacuum state.
Described vacuum withdraw device can more accurately guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state.When described vacuum withdraw device is connected in described the first valve 305, at first the port that described the first valve 305 is connected in to described vacuum withdraw device is opened, and by other port shutdowns of described the first valve 305, close described the second valve 306 simultaneously, open described the first switch 302 and second switch 304, now can start to carry out vacuum drawn, after extracting as vacuum by described gas concentration unit 301 and described liquid withdrawal system 303, at first close described the first switch 302 and second switch 304, close again after described the first valve 305 is connected in the port of described vacuum withdraw device, now complete the vacuum drawn action, in like manner, when described vacuum withdraw device is connected in described the second valve 306, also can complete equally this vacuum drawn action.
In another embodiment, described gas concentration unit 301 and described liquid withdrawal system 303 are air bag, in described step S100, make described gas concentration unit 301 and described liquid withdrawal system 303 also comprise in vacuum state: the air of described gas concentration unit 301 and described liquid withdrawal system 303 to be extruded, made described gas concentration unit 301 and described liquid withdrawal system 303 in vacuum state.Now simple in structure, easy to operate, only need can extrude air by the mode of extruding.
Further, with reference to Fig. 8 and Fig. 9, also be provided with device for pressure measurement 307 between described second switch 304 and described liquid withdrawal system 303, guarantee in described step S100 that described gas concentration unit 301 and described liquid withdrawal system 303 comprise in vacuum state: 307 pairs of force value of described device for pressure measurement are detected, until the force value of its measurement while being preset value, judges that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state.In order to guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state, and hold the time better in the process that reclaims refrigerant, increase work efficiency, between described second switch 304 and described liquid withdrawal system 303, also be provided with device for pressure measurement 307.The force value of measuring when described device for pressure measurement 307 during lower than preset value, can think that it is in vacuum state, and in the present embodiment, the preset value of described device for pressure measurement 307 measured pressure value is 5Pa.But the present invention is not limited to 5Pa, as long as can reach, make described gas concentration unit 301 and described liquid withdrawal system 303 in vacuum state.And when carrying out the recovery of residual refrigerant, when described device for pressure measurement 307 measured values are the 1MPa left and right, the recovery that shows refrigerant is substantially complete, now can carry out next step, thereby avoided the time delay caused because of the inaccuracy of estimating to wait for and poor efficiency, thereby or caused waste and pollute because the appraisal mistake finishes removal process in advance.
Further, after gas concentration unit described in described step S200 301 reclaims the air in described jockey 1, closing described second switch 304 comprises: described gas concentration unit 301 reclaimed the interior air of described jockey 1 after 1 minute, closed described second switch 304.Through practical test, after the time of 1 minute can complete well refrigerant and flows into, for following refrigerant to enter the recovery of the air of air-conditioner outdoor unit 3 by output 20, thereby guarantee the reliability service of air-conditioner outdoor unit 3.
The embodiment of the present invention can greatly solve the secondary refrigerant leakage that causes when air-conditioner outdoor unit 3 is carried out to coolant injection and the problem of waste, after air-conditioner outdoor unit 3 is carried out to coolant charging, can effectively prevent leakage and the waste of refrigerant, carry out refrigerant recovering, guarantee the personnel's that fill safety, can, in the injection process of refrigerant, avoid air to follow refrigerant to inject air-conditioner outdoor unit 3, thereby guarantee the reliability service of air-conditioning simultaneously.
The foregoing is only the preferred embodiments of the present invention; not thereby limit its scope of the claims; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (10)
1. a jockey, comprise the injection end that injects fluid and the output of exporting fluid, and described injection end communicates with described output, it is characterized in that, also comprises the retracting device that is connected to described injection end and described output, and described retracting device comprises:
Gas concentration unit, communicate with described injection end and described output, for when described injection end starts to inject fluid, reclaims the gas in described jockey;
The first switch, described gas concentration unit communicates with described injection end and described output by described the first switch;
Liquid withdrawal system, communicate with described injection end and described output, for after described injection end stops injecting fluid, reclaims the fluid between described injection end and described output;
Second switch, described liquid withdrawal system communicates with described injection end and described output by described second switch;
Described gas concentration unit communicates by described the first switch and described second switch with described liquid withdrawal system.
2. jockey according to claim 1, is characterized in that, also comprises:
The first valve, be arranged between described injection end and described the first switch, and described injection end communicates with described the first switch, described second switch and described output by described the first valve;
The second valve, be arranged between described output and described second switch, and described output communicates with described the first switch, described second switch and described injection end by described the second valve.
3. jockey according to claim 2, is characterized in that, also comprises vacuum withdraw device, and described vacuum withdraw device is connected in described the first valve/second valve.
4. according to the described jockey of claims 1 to 3 any one, it is characterized in that, between described second switch and described liquid withdrawal system, also be provided with device for pressure measurement.
5. the refrigerant injection device of an air-conditioning, it is characterized in that, comprise the refrigerant storage device, with the described jockey of claim 1 to 4 any one, described refrigerant storage device is connected by described injection end with described jockey, and described jockey is connected by described output with the off-premises station of air-conditioning.
6. the refrigerant method for implanting of an air-conditioning, it is characterized in that, off-premises station injection refrigerant by from the refrigerant injection device to air-conditioning, described refrigerant injection device comprises refrigerant storage device, jockey claimed in claim 1, described refrigerant storage device is provided with the 3rd valve be connected with described injection end, and described air-conditioner outdoor unit is provided with the 4th valve be connected with described output; The refrigerant method for implanting of described air-conditioning comprises the following steps:
Guarantee that described gas concentration unit and described liquid withdrawal system are in vacuum state, described the first switch, second switch, the 3rd valve and the 4th valve are in closed condition;
Open described the 3rd valve and the first switch, by described injection end, inject refrigerant, described gas concentration unit is closed described the first switch after reclaiming the gas in described jockey;
Open described the 4th valve, the refrigerant that described output injects described injection end exports air-conditioner outdoor unit to;
Close successively described the 4th valve and described the 3rd valve, open described second switch, described liquid withdrawal system is closed described second switch after reclaiming the refrigerant between described the 3rd valve and described the 4th valve, completes implant operation.
7. the refrigerant method for implanting of air-conditioning according to claim 6, it is characterized in that, described jockey also comprises the first valve of being arranged between described injection end and described the first switch, is arranged at the second valve between described output and described second switch, described injection end communicates with described the first switch, described second switch and described output by described the first valve, and described output communicates with described the first switch, described second switch and described injection end by described the second valve;
Describedly guarantee that described the first switch, second switch, the 3rd valve and the 4th valve also comprise in the time of closed condition: guarantee that described the first valve and described the second valve are in closed condition;
Described by also comprising before described injection end injection refrigerant: as to open described the first valve and described the second valve;
The described implant operation that completes also comprises before: close described the first valve and described the second valve.
8. the refrigerant method for implanting of air-conditioning according to claim 7, is characterized in that,
Described jockey also comprises the vacuum withdraw device that is connected in described the first valve; Describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: open described the first valve, the first switch and second switch, close described the second valve, utilize described vacuum withdraw device extracting gases, make described gas concentration unit and described liquid withdrawal system in vacuum state;
Or described jockey also comprises the vacuum withdraw device that is connected in described the second valve; Describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: open described the second valve, the first switch and second switch, close described the first valve, utilize described vacuum withdraw device extracting gases, make described gas concentration unit and described liquid withdrawal system in vacuum state.
9. according to the refrigerant method for implanting of the described air-conditioning of claim 6 to 8 any one, it is characterized in that, also be provided with device for pressure measurement between described second switch and described liquid withdrawal system, describedly guarantee that described gas concentration unit and described liquid withdrawal system comprise in vacuum state: described device for pressure measurement is detected force value, until the force value of its measurement while being preset value, judges that described gas concentration unit and described liquid withdrawal system are in vacuum state.
10. the refrigerant method for implanting of air-conditioning according to claim 6, is characterized in that, described gas concentration unit and described liquid withdrawal system are air bag, describedly guarantees that described gas concentration unit and described liquid withdrawal system also comprise in vacuum state:
The gas of described gas concentration unit and described liquid withdrawal system is extruded, made described gas concentration unit and described liquid withdrawal system in vacuum state.
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| CN201310440014.0A CN103499168B (en) | 2013-09-24 | 2013-09-24 | Attachment means, the coolant injection device of air-conditioning and method |
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| CN103499168B (en) | 2016-09-21 |
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