CN103499168B - Attachment means, the coolant injection device of air-conditioning and method - Google Patents
Attachment means, the coolant injection device of air-conditioning and method Download PDFInfo
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- CN103499168B CN103499168B CN201310440014.0A CN201310440014A CN103499168B CN 103499168 B CN103499168 B CN 103499168B CN 201310440014 A CN201310440014 A CN 201310440014A CN 103499168 B CN103499168 B CN 103499168B
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Abstract
The invention discloses a kind of attachment means, and use coolant injection device and the method for the air-conditioning of this attachment means, described attachment means includes injection end, outfan, retracting device, described retracting device includes that gas concentration unit, the first switch, liquid withdrawal system, second switch, described gas concentration unit are for when described injection end starts to inject coolant, gas recovery, described liquid withdrawal system, after stopping injecting coolant at described injection end, reclaims the residual coolant between described injection end and described outfan.The problem that the present invention can greatly solve secondary refrigerant leakage and the waste caused when air-conditioner outdoor unit is carried out coolant injection, after air-conditioner outdoor unit is carried out coolant charging, leakage and the waste of coolant can be effectively prevented, carry out refrigerant recovering, ensure the safety of the personnel that fill, simultaneously can be in the injection process of coolant, it is to avoid gas injects in air-conditioner outdoor unit with coolant, thus ensures the reliability service of air-conditioning.
Description
Technical field
The present invention relates to household appliance technical field, the coolant particularly relating 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 coolant.And due to
The service life of air-conditioning and the restriction of the manufacturing process of air-conditioning, after a protracted use, cold in air-conditioning
Matchmaker there will be leakage in various degree, thus need to fill coolant and make air-conditioning reenter good work
State.But, in the prior art, during filling coolant, there will be certain secondary refrigerant leakage, and
The coolant revealed can produce certain pollution to environment；Meanwhile, also there will be what gas was mixed into coolant
Situation, therefore, coolant be injected into the difficult problem for after-sales service.Further, empty along with inflammability coolant
That adjusts emerges, and in the inflammable and explosive problem in the face of inflammability coolant, how to realize safety and fills coolant
And the dependability of air-conditioning becomes current urgent problem especially after ensureing coolant charging.
In the conventional technology, as shown in fig. 1, Fig. 1 is prior art to the coolant charging mode of air-conditioning
The structural representation of middle coolant injection device one embodiment, coolant is stored up by which by connecting flexible pipe 103
Coolant injection in cryopreservation device 101, in air-conditioner outdoor unit 105, in order to fill conveniently, keeps in repair people
Member is typically air-conditioner outdoor unit 105 and coolant storage device 101 directly to be connected first with connection flexible pipe 103
Connect, start shooting subsequently, and open the first three-way valve 102 and the second three-way valve 104 successively, proceed by cold
Matchmaker fills, and the gas being at this moment in connection flexible pipe 103 can be followed the coolant of injection and is filled into sky together
Adjust in off-premises station 105.In this process, if needing to prevent gas from entering in air-conditioner outdoor unit 105,
Can only first install and connect flexible pipe 103, and open the first three-way valve 102 when start, allow coolant inject
Connect in flexible pipe 103, discharge connecting the gas within flexible pipe 103, then connection flexible pipe 103 is connected
To air-conditioner outdoor unit 105, could close until connecting after flexible pipe 103 is fully connected to air-conditioner outdoor unit 105
Close the first three-way valve 102, the most again start shooting, open the first three-way valve 102 and the second three-way valve simultaneously
104 carry out coolant charging, and in the process, injecting the coolant connected in flexible pipe 103 can flow out in a large number,
Cause serious waste and pollution；And after coolant has been noted, need to close successively the second three-way valve 104 and
After first three-way valve 102, then dismounting connects flexible pipe 103, now, connects residual in flexible pipe 103
Coolant cannot reclaim, and after connecting flexible pipe 103 and being disassembled, the coolant of residual can be lost in air,
Thus again resulted in waste and the contamination phenomenon of coolant, especially for inflammability coolant, use this kind
The coolant of mode injects, and a large amount of leakages of coolant are the biggest potential safety hazards.
Summary of the invention
The main object of the present invention there is provided a kind of attachment means, and uses the air-conditioning of this attachment means
Coolant injection device and method, it is intended to after air-conditioner outdoor unit is carried out coolant charging, be effectively prevented cold
The leakage of matchmaker and waste, carry out refrigerant recovering, it is ensured that fills the safety of personnel, simultaneously can be at coolant
In injection process, it is to avoid gas injects air-conditioner outdoor unit with coolant.
The invention provides a kind of attachment means, including injection end and the output of output fluid of injecting fluid
End, described injection end communicates with described outfan, also includes being connected to described injection end defeated with described
Going out the retracting device of end, described retracting device includes:
Gas concentration unit, communicates with described injection end and described outfan, for opening at described injection end
When beginning to inject fluid, reclaim the gas in described attachment means；
First switch, described gas concentration unit is by described first switch and described injection end and described defeated
Go out end to communicate；
Liquid withdrawal system, communicates with described injection end and described outfan, for stopping at described injection end
After only injecting fluid, reclaim the fluid between described injection end and described outfan；
Second switch, described liquid withdrawal system is by described second switch and described injection end and described defeated
Go out end to communicate；
Described gas concentration unit and described liquid withdrawal system switch by described first and described second open
Pass communicates.
Preferably, also include:
First valve, is arranged between described injection end and described first switch, and described injection end passes through institute
State the first valve to communicate with described first switch, described second switch and described outfan；
Second valve, is arranged between described outfan and described second switch, and described outfan passes through institute
State the second valve to communicate with described first switch, described second switch and described injection end.
Preferably, also include vacuum withdraw device, described vacuum withdraw device be connected to described first valve/
Second valve.
Preferably, it is additionally provided with pressure gauge between described second switch and described liquid withdrawal system.
The present invention also provides for the coolant injection device of a kind of air-conditioning, wants including coolant storage device and right
Seeking the attachment means described in 1 to 4 any one, described coolant storage device and described attachment means are by described
Injection end connects, and described attachment means is connected by described outfan with the off-premises station of air-conditioning.
The present invention also provides for the coolant method for implanting of a kind of air-conditioning, by coolant injection device to air-conditioning
Off-premises station inject coolant, described coolant injection device includes described in coolant storage device, claim 1
Attachment means, described coolant storage device is provided with the 3rd valve being connected with described injection end, described sky
Off-premises station is adjusted to be provided with the 4th valve being connected with described outfan；The coolant method for implanting bag of described air-conditioning
Include following steps:
Guaranteeing that described gas concentration unit and described liquid withdrawal system are in vacuum state, described first opens
Pass, second switch, the 3rd valve and the 4th valve are closed；
Opening described 3rd valve and the first switch, inject coolant by described injection end, described gas returns
After receiving apparatus reclaims the gas in described attachment means, close described first switch；
Opening described 4th valve, the coolant that described injection end is injected by described outfan exports to air conditioning chamber
Outer machine；
Close described 4th valve and described 3rd valve successively, open described second switch, described liquid
After retracting device reclaims the coolant between described 3rd valve and described 4th valve, close described second and open
Close, complete implant operation.
Preferably, described attachment means also includes being arranged between described injection end and described first switch
First valve, the second valve being arranged between described outfan and described second switch, described injection end
Communicated with described first switch, described second switch and described outfan by described first valve, described
Outfan is communicated with described first switch, described second switch and described injection end by described second valve；
Described guarantee that described first switch, second switch, the 3rd valve and the 4th valve are closed
While also including: ensuring that described first valve and described second valve are closed；
Described injection before coolant by described injection end is also included: open described first valve and described the
Two valves；
Described complete implant operation before also include: close described first valve and described second valve.
Preferably, described attachment means also includes the vacuum withdraw device being connected to described first valve；Institute
State and guarantee that described gas concentration unit and described liquid withdrawal system are in vacuum state and include: open described
First valve, the first switch and second switch, close described second valve, utilize described vacuum drawn to fill
Put extraction gas, make described gas concentration unit and described liquid withdrawal system be in vacuum state；
Or, described attachment means also includes the vacuum withdraw device being connected to described second valve；Described really
Protect described gas concentration unit and described liquid withdrawal system is in vacuum state and includes: open described second
Valve, the first switch and second switch, close described first valve, utilize described vacuum withdraw device to take out
Take gas, make described gas concentration unit and described liquid withdrawal system be in vacuum state.
Preferably, pressure measxurement dress it is additionally provided with between described second switch and described liquid withdrawal system
Put, described in guarantee that described gas concentration unit and described liquid withdrawal system are in vacuum state and include: institute
State pressure gauge force value is detected, during until its force value measured is preset value,
Judge 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, described in guarantee described
Gas concentration unit and described liquid withdrawal system are in vacuum state and include:
The gas of described gas concentration unit and described liquid withdrawal system is extruded, makes described gas reclaim
Device and described liquid withdrawal system are in vacuum state.
The invention provides a kind of attachment means, and use the coolant of the air-conditioning of this attachment means to inject dress
Putting and method, described attachment means includes injection end and the outfan of output fluid injecting fluid, described
Injection end communicates with described outfan, also includes being connected to returning of described injection end and described outfan
Receiving apparatus, described retracting device includes for when described injection end starts to inject fluid, reclaiming described company
The gas concentration unit of gas in connection device (gas brought in original and fluid in attachment means),
After stopping injecting fluid at described injection end, reclaim between described injection end and described outfan
The liquid withdrawal system of residual liquid (after having reclaimed complete gas, remaining fluid is liquid), this connection
Device can greatly solve the secondary refrigerant leakage that caused when air-conditioner outdoor unit is carried out coolant injection and
The problem of waste, after air-conditioner outdoor unit is carried out coolant charging, can be effectively prevented the leakage of coolant
And waste, carry out refrigerant recovering, it is ensured that fill the safety of personnel, simultaneously can be in the injection process of coolant
In, it is to avoid gas injects in air-conditioner outdoor unit with coolant, thus ensures the reliability service of air-conditioning.
Accompanying drawing explanation
Fig. 1 is the structural representation of coolant injection device one embodiment in prior art；
Fig. 2 is the structural representation of attachment means first embodiment of the present invention；
Fig. 3 is the structural representation of attachment means the second embodiment of the present invention；
Fig. 4 is the structural representation of attachment means the 3rd embodiment of the present invention；
Fig. 5 is the structural representation of attachment means the 4th embodiment of the present invention；
Fig. 6 is the structural representation of coolant injection device first embodiment of the present invention；
Fig. 7 is the structural representation of coolant injection device the second embodiment of the present invention；
Fig. 8 is the structural representation of coolant injection device the 3rd embodiment of the present invention；
Fig. 9 is the structural representation of coolant injection device the 4th embodiment of the present invention；
Figure 10 is the flow chart of coolant method for implanting one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings further
Explanation.
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with Figure of description and specific embodiment.Should
Understanding, specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The present invention provides a kind of attachment means.
It is the structural representation of attachment means first embodiment of the present invention with reference to Fig. 2, Fig. 2；This embodiment
Attachment means 1 include injection end 10 and the outfan 20 of output fluid, the described injection of injecting fluid
End 10 communicates with described outfan 20, also includes being connected to described injection end 10 and described outfan
The retracting device 30 of 20, described retracting device 30 includes: gas concentration unit 301, with described injection
End 10 and described outfan 20 communicate, and for when described injection end 10 starts to inject fluid, reclaim institute
State the gas in attachment means；First switch 302, described gas concentration unit 301 is by described first
Switch 302 communicates with described injection end 10 and described outfan 20；Liquid withdrawal system 303, with institute
State injection end 10 and described outfan 20 communicates, after stopping injecting fluid at described injection end 10,
Reclaim the fluid between described injection end 10 and described outfan 20；Second switch 304, described liquid
Retracting device 303 is communicated with described injection end 10 and described outfan 20 by described second switch 304；
Described gas concentration unit 301 and described liquid withdrawal system 303 are by described first switch 302 and institute
Stating second switch 304 to communicate, in the present embodiment, each parts are connected with each other by pipeline and communicate.
Above-mentioned attachment means 1 may be used for Safety Injection fluid, and will not make to bring in linkage section and fluid
Gas enter, with fluid, the equipment that injected, its specific works process is as follows:
Before using above-mentioned attachment means 1, first check for described first switch 302 and described second switch
Whether 304 be closed, and confirms described gas concentration unit 301 and described liquid withdrawal system simultaneously
303 are in vacuum state, when above-mentioned two condition is all met, above-mentioned attachment means 1 are connected to
External equipment, and make described injection end 10 and described outfan 20 be in closed state.
(fluid being initially injected into from the storage facilities of fluid contains at this point it is possible to start to inject fluid
The certain gas taken out of from storage space, after above-mentioned gas is recovered, injects in subsequent step
Fluid is liquid), its concrete injection mode is: is first turned on described injection end 10, first and switchs 302,
Injecting fluid in the way of low discharge from described injection end 10, now fluid is opened along with the action of said mechanism
Start from described injection end 10 and enter described retracting device 30, be more than owing to injecting the density of the liquid in fluid
Gas, therefore when described fluid enters retracting device 30 and is full of its inside, in described attachment means 1
The gas that gas and injection fluid are brought into, under the extruding of liquid, enters the described gas being in vacuum state
Body retracting device 301, namely proceed by the recovery of gas.
After the process of above-mentioned gas recovery is complete, close described first switch 302；Now with big stream
The mode of amount injects fluid from described injection end 10, meanwhile, opens described outfan 20, by the most recovered
Injection fluid after gas is exported by described outfan 20, namely it is outside to begin through described attachment means 1
Portion's equipment filling fluid.
After the process of above-mentioned filling fluid is complete, close described injection end 10, outfan 20 successively,
And described second switch 304 is opened, now, owing to described liquid withdrawal system 303 is in vacuum state,
Therefore, it is positioned at the fluid of described attachment means 1 under atmospheric pressure effect, flows into described liquid withdrawal system
303, thus proceed by returning of residual fluid (after gas recovery, the most only remaining the fluid of liquid)
Receive.
After recovery residual fluid is complete, closes described second switch 304, described attachment means 1 dismantled,
I.e. complete the injection of fluid.
Further, reference Fig. 3, Fig. 3 is the structural representation of attachment means the second embodiment of the present invention；
This embodiment is with above-mentioned first embodiment difference, and described attachment means 1 also includes: the first valve
305, it is arranged between described injection end 10 and described first switch 302, described injection end 10 is by described
First valve 305 communicates with described first switch 302, described second switch 304 and described outfan 20；The
Two valves 306, are arranged between described outfan 20 and described second switch 304, and described outfan 20 leads to
Cross described second valve 306 and described first switch 302, described second switch 304 and described injection end 10
Communicate.
May be used for Safety Injection fluid according to above-mentioned attachment means 1, and will not make in linkage section and fluid
The gas brought into enters the equipment injected with fluid, and its specific works process is as follows:
Before using above-mentioned attachment means 1, first check for described first switch 302 and described second switch
Whether 304 be closed, and confirms described gas concentration unit 301 and described liquid withdrawal system simultaneously
303 are in vacuum state, when above-mentioned two condition is all met, above-mentioned attachment means 1 are connected to
External equipment, and make described injection end 10 and described outfan 20 be in closed state.
(fluid being initially injected into from the storage facilities of fluid contains at this point it is possible to start to inject fluid
The certain gas taken out of from storage space, after above-mentioned gas is recovered, injects in subsequent step
Fluid is liquid), its concrete injection mode is: be first turned on described injection end the 10, first valve 305,
Second valve 306, first switchs 302, injects fluid from described injection end 10 in the way of low discharge, this
Shi Liuti starts to enter described through the first valve 305 from described injection end 10 along with the action of said mechanism
Retracting device 30, is more than gas owing to injecting the density of the liquid in fluid, therefore enters when described fluid
Retracting device 30 and be full of its internal time, gas in described attachment means 1 and inject the gas that fluid is brought into
Body, under the extruding of liquid, enters and is in the described gas concentration unit 301 of vacuum state, namely start into
The recovery of circulation of qi promoting body.
After the process of above-mentioned gas recovery is complete, close described first switch 302；Now with big stream
The mode of amount injects fluid from described injection end 10, meanwhile, opens described outfan 20, by the most recovered
Injection fluid after gas is exported by described outfan 20, namely it is outside to begin through described attachment means 1
Portion's equipment filling fluid.
After the process of above-mentioned filling fluid is complete, close described injection end 10, outfan 20 successively,
And described second switch 304 is opened, now, owing to described liquid withdrawal system 303 is in vacuum state,
Therefore, it is positioned at the fluid of described attachment means 1 under atmospheric pressure effect, flows into described liquid withdrawal system
303, thus proceed by the recovery of residual fluid.
Reclaim residual fluid complete after, close described second switch 304, described first valve 305 and the
Two valves 306, dismantle described attachment means 1, i.e. complete the injection of fluid.
Further, attachment means 1 of the present invention also includes being connected to described first valve 305/ second valve
The vacuum withdraw device (not shown) of 306.Described vacuum withdraw device can more precisely ensure described
Gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum state.When described vacuum drawn fills
Put when being connected to described first valve 305, first described first valve 305 is connected to described vacuum drawn
The port of device is opened, and by other port shutdowns of described first valve 305, simultaneously closes off described second
Valve 306, opens described first switch 302 and second switch 304, now can proceed by vacuum drawn,
After described gas concentration unit 301 is extracted as vacuum with described liquid withdrawal system 303, first close
Close described first switch 302 and second switch 304, turn off described first valve 305 and be connected to described vacuum
After the port of draw-out device, now complete vacuum drawn action；In like manner, connect when described vacuum withdraw device
When being connected to described second valve 306, it is also possible to complete this vacuum drawn action equally.
Further, as shown in Figures 4 and 5, Fig. 4 is the knot of attachment means the 3rd embodiment of the present invention
Structure schematic diagram；Fig. 5 is the structural representation of attachment means the 4th embodiment of the present invention；Described 3rd implements
Example and above-mentioned first embodiment (Fig. 2), described 4th embodiment and above-mentioned second embodiment (Fig. 3)
Difference is, in order to ensure at described gas concentration unit 301 and described liquid withdrawal system 303
In vacuum state, and preferably hold the time during reclaiming fluid, improve work efficiency, described
Attachment means 1 also includes being arranged between described second switch 304 and described liquid withdrawal system 303
Pressure gauge 307.
When the force value that described pressure gauge 307 is measured is less than preset value, it is believed that at it
In vacuum state, the present embodiment, this preset value is preferably 5Pa, but the present invention is not limited to 5Pa,
As long as can reach to make described gas concentration unit 301 and described liquid withdrawal system 303 be in vacuum state or
?.And when carrying out the recovery of residual fluid, when described pressure gauge 307 measured value is 1MPa
During left and right, i.e. show that the recovery of fluid is the most complete, now can carry out next step, thus avoid because of
The time delay caused by the inaccuracy estimated waits and inefficient, or because estimates mistake and terminate in advance
Removal process thus cause waste and pollute.
The present invention also provides for the coolant injection device 2 of a kind of air-conditioning, is the present invention with reference to Fig. 2 to Fig. 9, Fig. 6
The structural representation of coolant injection device first embodiment；Fig. 7 is that coolant injection device second of the present invention is implemented
The structural representation of example；Fig. 8 is the structural representation of coolant injection device the 3rd embodiment of the present invention；Fig. 9
It it is the structural representation of coolant injection device the 4th embodiment of the present invention；The air-conditioning of the various embodiments described above cold
Matchmaker's injection device 2 includes the attachment means 1 described in coolant storage device 21, above-mentioned first to fourth embodiment,
Described coolant storage device 21 is connected, outside described air conditioning chamber by described injection end 10 with described attachment means 1
Machine 3 is connected by described outfan 20 with described attachment means 1.
When described coolant storage device 21 starts to inject coolant by described injection end 10, described gas reclaims
Device 301 reclaims with the air in the described attachment means 1 of the coolant flowing of injection；And at described coolant
Storage device 21 to described air-conditioner outdoor unit 3 fill coolant complete after, described coolant storage device 21 stops
Injecting coolant by described injection end 10, it is defeated with described that described liquid withdrawal system reclaims described injection end 10
Go out the coolant between end 20.The coolant injection device 2 of this air-conditioning can greatly solve outside to air conditioner chamber
Machine carries out the problem of secondary refrigerant leakage and the waste caused during coolant injection, is carrying out cold to air-conditioner outdoor unit 3
Matchmaker filling after, leakage and the waste of coolant can be effectively prevented, carry out refrigerant recovering, for inflammable easily
Produce an unexpected winner for matchmaker, moreover it is possible to ensure the safety of the personnel that fill, can keep away in the injection process of coolant simultaneously
Exempt from air to inject in air-conditioner outdoor unit 3 with coolant, thus ensure the reliability service of air-conditioning.
The present invention also provides for the coolant method for implanting of a kind of air-conditioning.
As shown in Fig. 2 and Figure 10, Figure 10 is the flow chart of coolant method for implanting one embodiment of the present invention.
The present embodiment coolant method for implanting injects coolant by coolant injection device 2 to described air-conditioner outdoor unit 3,
Described coolant injection device 2 includes coolant storage device 21, described attachment means 1, and described coolant stores up
Cryopreservation device 2 is provided with the 3rd valve 22 being connected with described injection end 10, the off-premises station 3 of described air-conditioning
It is provided with the 4th valve 31 being connected with described outfan 20；The coolant method for implanting of described air-conditioning includes
Following steps:
S100, guarantee that described gas concentration unit 301 and described liquid withdrawal system 303 are in vacuum shape
State, described first switch 302, second switch the 304, the 3rd valve 22 and the 4th valve 31 are in closedown shape
State；
S200, open described 3rd valve 22 and the first switch 302, inject cold by described injection end 10
Matchmaker, after described gas concentration unit 301 reclaims the gas in coolant, closes described first switch 302；
S300, open described 4th valve 31, the coolant that described injection end 10 is injected by described outfan 20
Output is to air-conditioner outdoor unit 3；
S400, close described 4th valve 31 and described 3rd valve 22 successively, open described second switch
304, it is cold that described liquid withdrawal system 303 reclaims between described 3rd valve 22 and described 4th valve 31
After matchmaker, close described second switch 304, complete implant operation.
Above-mentioned coolant method for implanting may be used for Safety Injection coolant, and this method avoid in linkage section with
And from coolant storage device 21, enter the air of linkage section with coolant, along with being implanted into of coolant
Air-conditioner outdoor unit 3.Step S400 uses and after first closing described 4th valve 31, closes described 3rd valve
The order of 22, its role is to: in valve junction, very seal owing to being unlikely to be, may
With the presence of gap, if first close is the 3rd valve 22, due to air conditioning chamber during injecting coolant
There is suction in outer chance, after in pipeline, air pressure reduces, under atmospheric pressure, from gap always
It is easily accessible air.Therefore the present embodiment uses and close the 3rd valve 22 after first closing the 4th valve 31
Sequentially.
The specific works process that this coolant injection device 2 injects coolant and recovery residual coolant is as follows:
First, check whether are described first switch 302 of above-mentioned attachment means 1 and described second switch 304
It is closed, confirms that described gas concentration unit 301 is in described liquid withdrawal system 303 simultaneously
Vacuum state, when above-mentioned two condition is all met, by above-mentioned injection end 10 by described 3rd valve
Door 22 is connected to coolant storage device 21, and by described 4th valve 31, above-mentioned outfan 20 is connected to institute
State the off-premises station 3 of air-conditioning, and make described 3rd valve 22 and described 4th valve 31 be in closing shape
State.
At this point it is possible to start to inject coolant, its concrete injection mode is: be first turned on the first switch 302,
And described 3rd valve 22 is opened a little opening, by the way of described injection end 10 is with low discharge
Injecting coolant, then, now coolant starts to enter institute from described injection end 10 along with the action of said mechanism
Stating retracting device 30, the density of the coolant owing to injecting is more than air, therefore reclaims when described coolant enters
When device 30 its inside full, the air in described attachment means 1 is under the extruding of coolant, and entrance is in
The described gas concentration unit 301 of vacuum state, namely proceed by the recovery of air.
After the process of above-mentioned recovery air is complete, close described first switch 302；Now open big
Three valves 22, inject coolant from described injection end 10 in the way of big flow, meanwhile, open the described 4th
Valve 31, the injection coolant after having reclaimed air is exported to air-conditioner outdoor unit by described outfan 20
3, namely begin through described attachment means 1 and fill coolant to air-conditioner outdoor unit 3.
After the process of above-mentioned filling coolant is complete, close described 4th valve the 31, the 3rd valve successively
22, and described second switch 304 is opened, now, owing to described liquid withdrawal system 303 is in vacuum
State, therefore, is positioned at the coolant of described attachment means 1 under atmospheric pressure effect, flows into described liquid and return
Receiving apparatus 303, thus proceed by the recovery of residual coolant.
After recovery residual coolant is complete, closes described second switch 304, described attachment means 1 dismantled,
I.e. complete the injection of coolant.
Further, with reference to Fig. 7, described attachment means 1 also includes being arranged at described injection end 10 with described
The first valve 305 between first switch 302, it is arranged at described outfan 20 and described second switch 304
Between the second valve 306, described injection end 10 is by described first valve 305 and described first switch
302, described second switch 304 and described outfan 20 communicate, and described outfan 20 is by described second valve
Door 306 communicates with described first switch 302, described second switch 304 and described injection end 10；
Described guarantee at described first switch 302, second switch the 304, the 3rd valve 22 and the 4th valve 31
While closed mode, also including: ensuring that described first valve 305 and described second valve 306 are in pass
Closed state；
Described inject coolant by described injection end 10 before also include: open described first valve 305 and
Described second valve 306；
Described complete implant operation before also include: close described first valve 305 and described second valve
306。
Above-mentioned coolant method for implanting may be used for Safety Injection coolant, and this method avoid linkage section and from
Coolant storage device 21 enters with coolant the air of linkage section, is implanted into air-conditioning along with coolant
Off-premises station 3, the specific works process that this coolant injection device 2 injects coolant and recovery residual coolant is as follows:
First, check whether are described first switch 302 of above-mentioned attachment means 1 and described second switch 304
It is closed, confirms that described gas concentration unit 301 is in described liquid withdrawal system 303 simultaneously
Vacuum state, when above-mentioned two condition is all met, by above-mentioned injection end 10 by described 3rd valve
Door 22 is connected to coolant storage device 21, and by described 4th valve 31, above-mentioned outfan 20 is connected to institute
State the off-premises station 3 of air-conditioning, and make described 3rd valve 22 and described 4th valve 31 be in closing shape
State.
At this point it is possible to start to inject coolant, its concrete injection mode is: be first turned on the first switch 302,
First valve the 305, second valve 306, and described 3rd valve 22 is opened a little opening, pass through
Described injection end 10 injects coolant, then, now coolant moving along with said mechanism in the way of low discharge
Make to start to enter described retracting device 30 from described injection end 10 through the first valve 305, owing to injecting coolant
Density more than air, therefore when described coolant enters retracting device 30 and is full of inside it, described company
Air in connection device 1, under the extruding of coolant, enters the described gas concentration unit being in vacuum state
301, namely proceed by the recovery of air.
After the process of above-mentioned recovery air is complete, close described first switch 302；Now open big
Three valves 22, inject coolant from described injection end 10 in the way of big flow, meanwhile, open the described 4th
Valve 31, the injection coolant after having reclaimed air is exported to air-conditioner outdoor unit by described outfan 20
3, namely begin through described attachment means 1 and fill coolant to air-conditioner outdoor unit 3.
After the process of above-mentioned filling coolant is complete, close described 4th valve the 31, the 3rd valve successively
22, and described second switch 304 is opened, now, owing to described liquid withdrawal system 303 is in vacuum
State, therefore, is positioned at the coolant of described attachment means 1 under atmospheric pressure effect, flows into described liquid and return
Receiving apparatus 303, thus proceed by the recovery of residual coolant.
After recovery residual coolant is complete, closes described second switch 304, close described first valve 305
And second valve 306, described attachment means 1 is dismantled, i.e. completes the injection of coolant.
Further, the attachment means 1 of described coolant injection device 2 also includes being connected to described first valve
The vacuum withdraw device (not shown) of 305；Described step S100 makes described gas concentration unit 301 and
Described liquid withdrawal system 303 is in vacuum state and also includes: opens described first valve 305, first open
Pass 302 and second switch 304, close described second valve 306, and (figure is not to utilize described vacuum withdraw device
Show) extraction air, make described gas concentration unit 301 and described liquid withdrawal system 303 be in vacuum shape
State；Or, described attachment means 1 also includes the vacuum withdraw device (figure being connected to described second valve 306
Do not show)；Described step S100 makes at described gas concentration unit 301 and described liquid withdrawal system 303
Also include in vacuum state: open described second valve the 306, first switch 302 and second switch 304, close
Close described first valve 305, utilize described vacuum withdraw device (not shown) to extract air, make described gas
Body retracting device 301 and described liquid withdrawal system 303 are in vacuum state.
Described vacuum withdraw device can more precisely ensure described gas concentration unit 301 and described liquid
Body retracting device 303 is in vacuum state.When described vacuum withdraw device is connected to described first valve 305
Time, first the port that described first valve 305 is connected to described vacuum withdraw device is opened, and by described
Other port shutdowns of first valve 305, simultaneously close off described second valve 306, open described first and open
Pass 302 and second switch 304, now can proceed by vacuum drawn, by described gas concentration unit
301 with the extraction of described liquid withdrawal system 303 for after vacuum, be first shut off described first switch 302 and the
Two switches 304, after turning off the port that described first valve 305 is connected to described vacuum withdraw device, this
Time complete vacuum drawn action；In like manner, it is connected to described second valve 306 when described vacuum withdraw device
Time, it is also possible to complete this vacuum drawn action equally.
In another embodiment, described gas concentration unit 301 and described liquid withdrawal system 303 are gas
Capsule, makes in described step S100 at described gas concentration unit 301 and described liquid withdrawal system 303
Also include in vacuum state: by described gas concentration unit 301 and the sky of described liquid withdrawal system 303
Gas is extruded, and makes described gas concentration unit 301 and described liquid withdrawal system 303 be in vacuum state.
Now simple in construction, easy to operate, it is only necessary to air can be extruded by the way of extruding.
Further, with reference to Fig. 8 and Fig. 9, described second switch 304 and described liquid withdrawal system 303 it
Between be additionally provided with pressure gauge 307, described step S100 guarantees described gas concentration unit 301 and
Described liquid withdrawal system 303 is in vacuum state and includes: force value is entered by described pressure gauge 307
Row detection, during until its force value measured is preset value, it is determined that described gas concentration unit 301
And described liquid withdrawal system 303 is in vacuum state.In order to ensure described gas concentration unit 301 and institute
State liquid withdrawal system 303 and be in vacuum state, and preferably hold the time during reclaiming coolant,
Improve work efficiency, between described second switch 304 and described liquid withdrawal system 303, be additionally provided with pressure
Measurement apparatus 307.When the force value that described pressure gauge 307 is measured is less than preset value, can
To think that it is in vacuum state, in the present embodiment, described pressure gauge 307 measured pressure value pre-
First setting value is 5Pa.But the present invention is not limited to 5Pa, as long as can reach to make described gas concentration unit
301 are in vacuum state with described liquid withdrawal system 303.And when carrying out the recovery remaining coolant,
When described pressure gauge 307 measured value is about 1MPa, i.e. show that the recovery of coolant is the most complete,
Now can carry out next step, thus avoid because the time delay that caused of inaccuracy estimated waits and
Poor efficiency, or because appraisal mistake terminates removal process in advance thus causes waste and pollute.
Further, gas concentration unit 301 described in described step S200 reclaims described attachment means 1
After interior air, close described second switch 304 and include: described gas concentration unit 301 reclaims described
Air in attachment means 1, after 1 minute, closes described second switch 304.Through practical test, 1
Minute time can complete after coolant flows into well, for may be with coolant by outfan 20
Enter the recovery of the air of air-conditioner outdoor unit 3, thus ensure the reliability service of air-conditioner outdoor unit 3.
The embodiment of the present invention can greatly solve to be led when air-conditioner outdoor unit 3 is carried out coolant injection
The secondary refrigerant leakage caused and the problem of waste, after air-conditioner outdoor unit 3 is carried out coolant charging, can be effective
Prevent leakage and the waste of coolant, carry out refrigerant recovering, it is ensured that fill the safety of personnel, the most permissible
In the injection process of coolant, it is to avoid air injects in air-conditioner outdoor unit 3 with coolant, thus ensures sky
The reliability service adjusted.
The foregoing is only the preferred embodiments of the present invention, not thereby limit its scope of the claims, every profit
The equivalent structure made by description of the invention and accompanying drawing content or equivalence flow process conversion, directly or indirectly transport
It is used in other relevant technical fields, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. an attachment means, including the injection end and the outfan of output fluid, the described note that inject fluid
Enter end to communicate with described outfan, it is characterised in that also include being connected to described injection end with described
The retracting device of outfan, described retracting device includes:
Gas concentration unit, communicates with described injection end and described outfan, for opening at described injection end
When beginning to inject fluid, reclaim the gas in described attachment means；
First switch, described gas concentration unit is by described first switch and described injection end and described defeated
Go out end to communicate；
Liquid withdrawal system, communicates with described injection end and described outfan, for stopping at described injection end
After only injecting fluid, reclaim the fluid between described injection end and described outfan；
Second switch, described liquid withdrawal system is by described second switch and described injection end and described defeated
Go out end to communicate；
Described gas concentration unit and described liquid withdrawal system switch by described first and described second open
Pass communicates.
Attachment means the most according to claim 1, it is characterised in that also include:
First valve, is arranged between described injection end and described first switch, and described injection end passes through institute
State the first valve to communicate with described first switch, described second switch and described outfan；
Second valve, is arranged between described outfan and described second switch, and described outfan passes through institute
State the second valve to communicate with described first switch, described second switch and described injection end.
Attachment means the most according to claim 2, it is characterised in that also include vacuum withdraw device,
Described vacuum withdraw device is connected to described first valve or the second valve.
4. according to the attachment means described in any one of claims 1 to 3, it is characterised in that described second opens
Close and be additionally provided with pressure gauge between described liquid withdrawal system.
5. the coolant injection device of an air-conditioning, it is characterised in that include coolant storage device and power
Profit requires that the attachment means described in 1 to 4 any one, described coolant storage device are passed through with described attachment means
Described injection end connects, and described attachment means is connected by described outfan with the off-premises station of air-conditioning.
6. the coolant method for implanting of an air-conditioning, it is characterised in that by coolant injection device to air-conditioning
Off-premises station inject coolant, described coolant injection device includes described in coolant storage device, claim 1
Attachment means, described coolant storage device is provided with the 3rd valve being connected with described injection end, described sky
Off-premises station is adjusted to be provided with the 4th valve being connected with described outfan；The coolant method for implanting bag of described air-conditioning
Include following steps:
Guaranteeing that described gas concentration unit and described liquid withdrawal system are in vacuum state, described first opens
Pass, second switch, the 3rd valve and the 4th valve are closed；
Opening described 3rd valve and the first switch, inject coolant by described injection end, described gas returns
After receiving apparatus reclaims the gas in described attachment means, close described first switch；
Opening described 4th valve, the coolant that described injection end is injected by described outfan exports to air conditioning chamber
Outer machine；
Close described 4th valve and described 3rd valve successively, open described second switch, described liquid
After retracting device reclaims the coolant between described 3rd valve and described 4th valve, close described second and open
Close, complete implant operation.
The coolant method for implanting of air-conditioning the most according to claim 6, it is characterised in that described connection
Device also include being arranged at the first valve between described injection end and described first switch, be arranged at described
The second valve between outfan and described second switch, described injection end passes through described first valve and institute
Stating the first switch, described second switch and described outfan to communicate, described outfan passes through described second valve
Door communicates with described first switch, described second switch and described injection end；
Described guarantee that described first switch, second switch, the 3rd valve and the 4th valve are closed
While also including: ensuring that described first valve and described second valve are closed；
Described injection before coolant by described injection end is also included: open described first valve and described the
Two valves；
Described complete implant operation before also include: close described first valve and described second valve.
The coolant method for implanting of air-conditioning the most according to claim 7, it is characterised in that
Described attachment means also includes the vacuum withdraw device being connected to described first valve；Described guarantee institute
State gas concentration unit and described liquid withdrawal system be in vacuum state and include: open described first valve,
First switch and second switch, closes described second valve, utilizes described vacuum withdraw device to extract gas,
Described gas concentration unit and described liquid withdrawal system is made to be in vacuum state；
Or, described attachment means also includes the vacuum withdraw device being connected to described second valve；Described really
Protect described gas concentration unit and described liquid withdrawal system is in vacuum state and includes: open described second
Valve, the first switch and second switch, close described first valve, utilize described vacuum withdraw device to take out
Take gas, make described gas concentration unit and described liquid withdrawal system be in vacuum state.
9. according to the coolant method for implanting of the air-conditioning described in any one of claim 6 to 8, it is characterised in that
Be additionally provided with pressure gauge between described second switch and described liquid withdrawal system, described in guarantee institute
State gas concentration unit and described liquid withdrawal system is in vacuum state and includes: described pressure gauge
Force value is detected, during until its force value measured is preset value, it is determined that described gas returns
Receiving apparatus and described liquid withdrawal system are in vacuum state.
The coolant method for implanting of air-conditioning the most according to claim 6, it is characterised in that described gas
Body retracting device and described liquid withdrawal system are air bag, described in guarantee described gas concentration unit and described
Liquid withdrawal system is in vacuum state and also includes:
The gas of described gas concentration unit and described liquid withdrawal system is extruded, makes described gas reclaim
Device and described liquid withdrawal system are in vacuum state.
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| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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 true CN103499168B (en) | 2016-09-21 |
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| CN111998580A (en) * | 2020-09-19 | 2020-11-27 | 北京首钢国际工程技术有限公司 | Operation maintenance structure of high-voltage frequency converter evaporation cooling system |
| CN113531963B (en) * | 2021-06-16 | 2023-01-13 | 青岛海尔空调器有限总公司 | Air conditioner debugging equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247599A (en) * | 1997-12-16 | 2000-03-15 | 松下电器产业株式会社 | Purging method, appts. to be purged and purging appts. |
| CN1517639A (en) * | 2003-01-23 | 2004-08-04 | 松下电器产业株式会社 | Device for recovering refrigerant from air conditioner and refrigerant recovering method |
| CN201293503Y (en) * | 2008-09-27 | 2009-08-19 | 广东美的电器股份有限公司 | Coolant amount adjusting device for air conditioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09152234A (en) * | 1995-11-30 | 1997-06-10 | Asahi Glass Eng Kk | Method and apparatus for charging fluorine refrigerant |
| JPH1151515A (en) * | 1997-08-04 | 1999-02-26 | Hitachi Bill Shisetsu Eng Kk | Method for recovering refrigerant and apparatus for recovering refrigerant |
| JP2001271995A (en) * | 2000-03-27 | 2001-10-05 | Mazda Motor Corp | Gas charging apparatus and gas charging method |
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2013
- 2013-09-24 CN CN201310440014.0A patent/CN103499168B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247599A (en) * | 1997-12-16 | 2000-03-15 | 松下电器产业株式会社 | Purging method, appts. to be purged and purging appts. |
| CN1517639A (en) * | 2003-01-23 | 2004-08-04 | 松下电器产业株式会社 | Device for recovering refrigerant from air conditioner and refrigerant recovering method |
| CN201293503Y (en) * | 2008-09-27 | 2009-08-19 | 广东美的电器股份有限公司 | Coolant amount adjusting device for air conditioner |
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