CN1488900A - Refrigerant recovery device and refrigerant recovery method for air conditioner - Google Patents
Refrigerant recovery device and refrigerant recovery method for air conditioner Download PDFInfo
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- CN1488900A CN1488900A CNA031530354A CN03153035A CN1488900A CN 1488900 A CN1488900 A CN 1488900A CN A031530354 A CNA031530354 A CN A031530354A CN 03153035 A CN03153035 A CN 03153035A CN 1488900 A CN1488900 A CN 1488900A
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- refrigerant
- valve
- connecting pipings
- recovery
- pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/006—Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves
Abstract
To provide a refrigerant collecting device and a refrigerant collecting method capable of efficiently collecting refrigerant gas when an air conditioner for which a pump down work is not allowed is removed. In this refrigerant collecting device, a copper pipe direct-connection tool is fitted to the suction air check valve side of a refrigerant collecting pump producing a suction/discharge action effect by allowing a piston to move in a cylindrical container to operate a suction air check valve and a discharge check valve. The copper pipe direct-connection tool or a service port connection valve is fitted to the exhaust check valve side.
Description
Technical field
The refrigerant recovering apparatus and the method thereof that the present invention relates to be arranged in the air conditioner in dwelling house or the building, carry out when under situation about cold-producing medium can't be extracted out, implementing the air conditioner field-strip.
Background technology
In the past, the industrial waste that iron, aluminium, copper, plastics etc. and composite thereof constitute utilized disintegrating machine etc. with after its fragmentation, reclaimed by separating, selecting.
In addition, because inner inclosure the such as the discarded object of air conditioner etc. has cold-producing medium, oil, after temporarily being recycled to the refrigerant gas in the cooling cycle system in the off-premises station main body, the factory that the equipment that brings back to is complete etc. disintegrates so carry out pump to inhale operation at the scene.At this moment, as directly this air conditioner being thrown in to disintegrating machine, then inner refrigerant gas ejection, fry dried food ingredients is given birth to and is leaked, and not only causes environment damage, and the danger of operation is increased, therefore obligated recovery refrigerant gas and oil.When carrying out such refrigerant-recovery, use motor compressor as the power of refrigerant-recovery, the general use forced the refrigerant recovering apparatus that attracts.
But, various air conditioners are arranged on the market, the compressor that air conditioner also arranged fault has taken place and can't move at all or stopped the occasion of removing air conditioner behind the supply power.In this occasion, also to not use power supply just can carry out the technological development of sufficient refrigerant-recovery operation.
Brief summary of the invention
In view of this, the objective of the invention is to,, also can from the air conditioner of needs dismounting, carry out the refrigerant recovering apparatus and the refrigerant recovering method thereof of refrigerant-recovery apace even equipment such as a kind of on-the-spot non-transformer is provided.
Chamber of the present invention refrigerant recovering apparatus will be characterized in comprising at least: the refrigerant-recovery pump by the refrigerant-recovery that connects the pipe arrangement connection air conditioner inside that indoor set and off-premises station constituted to off-premises station or refrigerant tank; The connecting pipings speed that is connected with the connecting pipings of air conditioner connects uses accessory; And connecting pipings speed connect with accessory carry out the flexible pipe that pipe arrangement is connected with check valve and non return valve for outflow with air-breathing, and refrigerant-recovery with pump have cylinder container, at the piston of cylinder container inner moveable, air-breathing with check valve and non return valve for outflow and the movable axis that is connected with piston.
In said structure, remain in the refrigerant gas of the indoor set inside and the connecting pipings inside of air conditioner, by being recycled to the off-premises station body interior of air conditioner with using being forced to property of refrigerant recovering apparatus.The refrigerant-recovery pump that use this moment is the simple structure that is combined by piston, cylinder, check valve, so needn't use equipment such as power supply, just can be carried out the recovery operation of cold-producing medium by operating personnel's self strength.
The simple declaration of accompanying drawing
Fig. 1 is the primary structure figure of the air conditioner of the invention process form.
Fig. 2 is the main composition portion of refrigerant recovering apparatus of expression the invention process form 1 and the figure of its pipe arrangement annexation.
Fig. 3 is the outside drawing of the perforation pincers that use in the invention process form.
Fig. 4 is the outside drawing of the gripping pliers that uses in the example of the present invention.
Fig. 5 is the air-breathing cross section structure figure with check valve that uses in the example of the present invention.
Fig. 6 is the relation that the main composition portion of the refrigerant recovering apparatus of expression the invention process form 2 is connected with its pipe arrangement.
Fig. 7 is the relation that the main composition portion of the refrigerant recovering apparatus of the invention process form 3 is connected with its pipe arrangement.
Fig. 8 is the relation that the main composition portion of the refrigerant recovering apparatus of the invention process form 4 is connected with its pipe arrangement.
Fig. 9 is the cutaway view of the oil separator structure of use in the expression the invention process form 4.
Figure 10 is the relation that the main composition portion of the refrigerant recovering apparatus of the invention process form 5 is connected with its pipe arrangement.
Figure 11 is the relation that the main composition portion of the refrigerant recovering apparatus of the invention process form 6 is connected with its pipe arrangement.
The best example of invention
Followingly example of the present invention is explained with reference to accompanying drawing.
Example 1
Fig. 1 is the primary structure figure of air conditioner.In the air conditioner of this example, 1 indoor set links to each other with 1 off-premises station, is filled with cold-producing medium R22, supposes can't carry out the occasion of refrigerant-recovery to the draw out operation of outdoor pusher side described owing to the fault of compressor.The air conditioner major part is made of indoor set 1, connecting pipings 2,3, off-premises station 4, and connecting pipings 2,3 is encased by pipe arrangement cover 5.Connecting pipings 2,3 is auxiliary pipe arrangement (not shown) of drawing from indoor set 1 and the structure that is connected with off-premises station 4 horn mouths.
Fig. 2 is the primary structure portion of refrigerant recovering apparatus of expression example 1 and the figure of its pipe arrangement annexation.4 external side of main body portions are provided with two-port valve 6 and triple valve 7 at off-premises station, and this two-port valve 6 interconnects the back with triple valve 7, connecting pipings 2,3 and is connected with indoor set 1.Refrigerant recovering apparatus is connect with the perforation of accessory pincers 9, the opposing party's the connecting pipings connection valve 8 with accessory with pump 11, pressure hose 10,12, connecting pipings speed by refrigerant-recovery and constitutes.
The safeguarding oral area and be connected valve 8 sides and connect of the triple valve 7 of off-premises station 4 main bodys simultaneously, connects by the connecting pipings speed as refrigerant recovering apparatus and directly to offer through hole with the employed perforation pincers 9 of accessory on connecting pipings 3 and connect.So formation is connected to the bypass path of pressure hose 10, refrigerant-recovery pump 11, pressure hose 12, connection valve 8 from perforation pincers 9.In addition, dispose gripping pliers 13 in the α place of the part that is connected with perforation pincers 9 of connecting pipings 3 part till the triple valve 7.Refrigerant-recovery by being divided into two Room at cylinder container 111 internal configurations pistons 112, is connected with movable axis 113 with pump 11 on the piston 112.Movable axis 113 connects cylinder container 111 and links to each other with 114 ones of outer handle.At piston 112 lower dead point positions of a Room side that does not dispose movable axis 113, be equipped with air-breathing with check valve 115 and non return valve for outflow 116.In addition, be equipped with the O shape ring 117 of CR system on the piston 112, prevent the leakage of refrigerant gas at piston 112 peripheral parts.
Fig. 3 is the outside drawing of perforation pincers 9, and Fig. 4 is the outside drawing of gripping pliers 13.According to Fig. 3 the structure of perforation pincers 9 is explained.It is equipped with: but will can fixed supported L font support rod 91 and fixed handle 92 at leading section as the copper pipe of connecting pipings 3; The movable part 93 that can move forward and backward by operate mobile handle 92; Be arranged on movable part 93 front ends, and can directly offer the blade 94 of through hole connecting pipings 3.Be provided with intercommunicating pore (not shown) in movable part 93 inside, top is equipped with ball valve 95, and is connected with pressure hose 12.When offering through hole,, make the state that is communicated with pressure hose 12 under the state of opening at ball valve 95 by the intercommunicating pore of movable part 93 by 94 pairs of connecting pipings 3 of blade.
According to Fig. 4 the concrete structure of gripping pliers 13 is explained below.It has: support rod 131; Be arranged on the fixed part 132 of front end; With screw axis 134 is that starting point and connecting axle 135 have relation and be starting point and movable part 137 related handles 133 with screw axis 136, and movable part 137 is connected with support rod 131 by screw axis 138.Its result, by operate mobile handle 133, movable part 137 is middle mind-set fixed part 132 sides action with screw axis 138, becomes the structure that can flatten connecting pipings 3.
Fig. 5 is the air-breathing cross section structure figure with check valve 115 of expression.Air-breathing is that its copper pipe 1151 is processed by slot rolling at 2 places, adds the 1151a of the Ministry of worker at groove and is fixed with brazen valve stacker 1152 with check valve 115.Compression helical spring body 1153 engages with the resin plate 1154 of PPS system, make PPS system resin plate 1154 and brazen valve stacker 1155 collisions by the compression spring force, stacker 1155 contacts with 1154 of resin plates runner is stopped up, and becomes the one-way valve structures that air only flows towards the direction of arrow.Compression helical spring body 1153 uses the material of the spring constant of SUS304 system as 0.4N/mm.Brazen valve stacker 1155 adds the 1151b of the Ministry of worker by groove to be fixed, and is provided with the tapering in the upstream side runner of valve stacker 1155.The structure of non return valve for outflow 116 though omit explanation, has been used the compression helical spring body 1153 of spring constant as 0.6N/mm with air-breathing identical with check valve 115.
Operating sequence to refrigerant-recovery explains below.
At first, the triple valve 7 of off-premises station 4 main bodys safeguards oral area and is connected valve 8 sides and connects.At this moment, as connecting valve 8, use the fastening spool bossing on the triple valve 7, the type of while direction pushing to the inside of being arranged on.Thus, pressure hose 12 becomes the state with connecting pipings 3 internal communication, and refrigerant gas stops after arriving the non return valve for outflow 116 of refrigerant-recovery with pump 11 via pressure hose 12.Then the perforation of refrigerant recovering apparatus is clamped and directly offer through hole on 9 sides and the connecting pipings 3 and be connected.At this moment, the ball valve 95 of perforation pincers 9 is in closed condition.Its result can constitute the bypass path that is connected to pressure hose 10, refrigerant-recovery pump 11, pressure hose 12, connection valve 8 from perforation pincers 9.At the α place of connecting pipings 3 configuration gripping pliers 13, connecting pipings 3 flattenings are sealed then, the valve that is positioned at the two-port valve 6 of off-premises station 4 main body side faces rotates by die nut closes.
Then, if the ball valve 95 of perforation pincers 9 makes open mode gradually, then the refrigerant gas of indoor set 1 inside and connecting pipings 2,3 inside imports cylinder container 111 inside by air-breathing with check valve 115, and refrigerant-recovery moves to the A direction with the handle 114 of pump 11.Then, the handle 114 of refrigerant-recovery with pump 11 moved to the B direction, while then the refrigerant gas of cylinder container 111 inside is compressed, forcibly is fills up in off-premises station 4 main bodys by non return valve for outflow 116.By repeating this operation, the refrigerant gas of indoor set 1 inside and connecting pipings 2,3 inside move in off-premises station 4 bodies to being forced to property with pump 11 by refrigerant-recovery, thereby cold-producing medium is recovered.After having confirmed that indoor set 1 inside and connecting pipings 2,3 inside reach negative pressure state from malleation, it is closed with the valve of die nut swivel tee valve 7.Then, will bore a hole pincers 9 and gripping pliers 13 are removed from connecting pipings 3, and will connect valve 8 from triple valve 7 dismountings, and refrigerant-recovery finishes.And, carry out airborne release with remaining in triple valve 7 with the refrigerant gas of the pipe arrangement inside in the α place of connecting pipings 3 and the refrigerant gas that remains in from non return valve for outflow 116 to pressure hose 12 inside that are connected valve 8.Therefore, by the length of distance and pressure hose 12 between the α place of shortening triple valve 7 and connecting pipings 3, the airborne release of refrigerant gas can be compared the small amount that is suppressed to overall weight.The refrigerant gas pressure of cold-producing medium R22 in the time of 20 ℃ is 9.28kgf/cm
2, as refrigerant-recovery pump 11, as long as 10kgf/cm is arranged
2Boost capability, just can carry out sufficient refrigerant-recovery.
The refrigerant-recovery pump that use this moment is the simple structure that piston-cylinder and check valve combine, so need not use equipment such as power supply, can carry out the refrigerant-recovery operation by operating personnel's self strength.
In this example, use the perforation pincers 9 that have ball valve 95, initial closed condition becomes out state gradually.Perforation with no ball valve 95 clamps the occasion that engages, and refrigerant gas is directed into B side one Room of refrigerant-recovery with the cylinder container 111 of pump 11 quickly, and handle portion 114 sharply rises, and sometimes worries operating personnel's meeting so and injured.Therefore,, make open mode gradually, just can improve the security of operation by the perforation pincers 9 that use dribbling valve 95 as this example.
(example 2)
Below example 2 is explained.
In this example, link to each other, use the air conditioner of R407C cold-producing medium with 1 off-premises station and suppose that the occasion that Utilities Electric Co. stops power supply describes for 1 indoor set.Fig. 6 is the main composition portion of refrigerant recovering apparatus of expression the invention process form 2 and the figure of its pipe arrangement annexation.
As shown in Figure 6, on off-premises station 4 main bodys, be provided with two-port valve 15, triple valve 16, be connected with indoor set (not shown) by connecting pipings 17,18.At first, near the two-port valve 15 of off-premises station 4 main bodys, on connecting pipings 17, directly offer through hole and connect the perforation pincers 19 of refrigerant-recovery with non return valve for outflow 226 sides of pump 22, simultaneously, sky is opened about 15cm at interval and towards indoor pusher side, with refrigerant-recovery with the air-breathing perforation of pump 22 with check valve 225 sides clamp 20 with connecting pipings 17 on directly offer through hole and be connected.Its result constitutes the bypass path that is connected to pressure hose 21, refrigerant-recovery pump 22, pressure hose 23, perforation pincers 19 from perforation pincers 20.And, by at the β place of connecting pipings 17 configuration gripping pliers 24, the circuit of connecting pipings 17 is closed fully.Here, used and the perforation of example 1 same structure pincers 19,20 and gripping pliers 24.In addition, be provided with low pressure gauge 25 midway at pressure hose 21.
Refrigerant-recovery with pump 22 by being divided into two Room at cylinder container 221 internal configurations pistons 222, be connected with movable axis 223 on the piston 222, movable axis 223 connects cylinder container 221 and links to each other with outer handle portion 224, is equipped with air-breathing usefulness check valve 225 at piston 222 upper dead center positions of a Room side that disposes movable axis 223.In addition, piston 222 lower dead point positions in a Room side that does not dispose movable axis 223 are equipped with non return valve for outflow 226.In addition, also set check valve 227 on piston 222, this structure can prevent that refrigerant gas from never setting a Room effluent of movable axis 223 to a Room side that is equipped with movable axis 223.In addition, be equipped with the O shape ring 228 of HNBR system, prevent the leakage of refrigerant gas at piston 222 peripheral parts at the peripheral part of piston 222.In addition, also be equipped with the O shape ring (not shown) of HNBR system in the through hole that movable axis 223 and cylinder container 221 are joined, leak from movable axis 223 to prevent refrigerant gas.In addition, air-breathing with example 1 same structure, its explanation of Therefore, omited have been used with check valve 225, non return valve for outflow 226, check valve 227.
Operating sequence to refrigerant-recovery explains below.
At first, near the two-port valve 15 of off-premises station 4 main bodys, connect the perforation pincers 19 of refrigerant-recovery with non return valve for outflow 226 sides of pump 22 by the structure of on connecting pipings 17, directly offering through hole.At this moment, the ball valve of perforation pincers 19 is in closed condition.In addition, with the perforation pincers 19 15cm place that approximately is separated by, the refrigerant-recovery of coming pusher side in the junction chamber with the structure of directly offering through hole on connecting pipings 17 clamps 20 with the air-breathing perforation with check valve 225 sides of pump 22.The ball valve of perforation this moment pincers 20 is in closed condition.Its result constitutes the bypass path that is connected to pressure hose 21, refrigerant-recovery pump 22, pressure hose 23, perforation pincers 19 from perforation pincers 20.And, by at the β place of connecting pipings 17 configuration gripping pliers 24, the circuit of connecting pipings 17 is closed fully.In addition, the valve that is positioned at the triple valve 16 of off-premises station 4 main body side faces utilizes the die nut rotation that it is closed.
Ball valve by perforation pincers 20 becomes open mode gradually, then the refrigerant gas of indoor set inside and connecting pipings 17,18 inside imports cylinder container 221 inside by air-breathing with check valve 225, and refrigerant-recovery moves to the B direction with the handle portion 224 of pump 22.The ball valve that further makes perforation pincers 19 then is for opening state, and then bypass path becomes full communicating state.Then, the handle portion 224 of refrigerant-recovery with pump 22 moved towards the A direction, the refrigerant gas of cylinder container 221 inside moves to B side one Room by being arranged on the check valve 227 on the piston 222 from A side one Room.In addition, handle portion 224 is moved to the B direction, then refrigerant gas is compressed and forcibly is fills up in off-premises station 14 main bodys by non return valve for outflow 226.By repeating this operation, be recycled in off-premises station 4 bodies to the being forced to property of refrigerant gas of indoor set inside and connecting pipings 17,18 inside.After having confirmed that by the low pressure gauge midway 25 that is arranged on pressure hose 2 indoor set inside and connecting pipings 17,18 inside reach negative pressure state from malleation, valve with die nut rotation two-port valve 15 cuts out it, to bore a hole then pincers 19,20 and gripping pliers 24 removed from connecting pipings, and refrigerant-recovery finishes.
Here, say closely that the refrigerant gas that remains in the refrigerant gas of two-port valve 15 and the pipe arrangement inside in the β place of connecting pipings 17 and remain in pressure hose 23 inside from non return valve for outflow 226 to perforation pincers 19 also carries out airborne release.Therefore, by between the β place of shortening two-port valve 15 and connecting pipings 17 apart from and the length of pressure hose 23, the airborne release of refrigerant gas can be suppressed to that to compare with overall weight be small amount.The refrigerant gas pressure of cold-producing medium R407C in the time of 20 ℃ is 10.56kgf/cm to the maximum
2, pretend into refrigerant-recovery pump 22, as long as have 15kgf/cm
2Boost capability, just can carry out sufficient refrigerant-recovery.So long as the refrigerant-recovery pump of the such structure of this example, carry out refrigerant-recovery under can not having the state of pressure reduction in two Room of cylinder container, even can think 10kgf/cm
2About boost capability also enough.
In this example, use the perforation pincers of 2 dribbling valves, will clamp 20 ball valve with the air-breathing perforation that is communicated with check valve 225 and make the state of opening gradually.The refrigerant-recovery such at this example clamps the occasion that connects with the occasion of pump, in the perforation of using the valve of not dribbling, refrigerant gas is directed into A side one Room of cylinder container 221 quickly, circulating resistance as check valve 227 is big, and handle 224 moves downwards.In addition, little as the circulating resistance of check valve 227, then first side one Room and second side one Room become counterpressure at once.Therefore, so long as the such refrigerant-recovery pump of this example even do not use the perforation pincers of dribbling valve, needn't worry that also the operating personnel is injured.
(example 3)
Below example 3 is explained.
In this example 3,, suppose compressor fault and the occasion that can't move describes for air conditioner 1 indoor set and 1 off-premises station coupling, that use the R410A cold-producing medium.Fig. 7 is the main composition portion of refrigerant recovering apparatus of example 3 and the figure of its pipe arrangement annexation.On off-premises station 26 main bodys, be provided with two-port valve 27, triple valve 28, be connected with indoor set (not shown) by connecting pipings 29,30.Be connected with the maintenance port portion of the triple valve 28 of off-premises station 26 main bodys connecting valve 31 sides, simultaneously, on connecting pipings 30, directly offer through hole and connect the perforation that the connecting pipings speed as refrigerant recovering apparatus connects with the accessory use and clamp 32 sides.Its result, constitute from perforation pincers 32 be connected to pressure hose 33, refrigerant-recovery with pump 34, pressure hose 35, connect the bypass path of valve 31, with the γ place configuration gripping pliers 36 of the connecting pipings 29 of its repetition.Be provided with low pressure gauge 37 midway at pressure hose 33.
Refrigerant-recovery by being divided into two Room at cylinder container 341 internal configurations pistons 342, is connected with movable axis 343 with pump 34 on the piston 342.Movable axis 343 connects cylinder container 341 and links to each other with outer handle portion 344.Be equipped with air-breathing with check valve 345a and non return valve for outflow 346a at the upper dead center position place of the piston 342 of a Room side that disposes movable axis 343, in addition, be equipped with at the lower dead point position place of the piston 342 of a Room side that does not dispose movable axis 343 air-breathing with check valve 345b and non return valve for outflow 346b.All constitute with air-breathing circuit with check valve 345a from air-breathing, all constitute with air-breathing circuit by the pressure hose 35 that is connected midway with check valve 346b from non return valve for outflow 346a by the pressure hose 33 that is connected midway with check valve 345b.In addition, the O shape that is equipped with the HNBR system at piston 342 peripheral parts encircles 347, prevents the leakage of refrigerant gas at piston 342 peripheral parts.In addition, also be equipped with the O shape ring (not shown) of HNBR system in the through hole that movable axis 343 and cylinder container 341 are joined, leak from movable axis 343 to prevent refrigerant gas.In addition, used air-breathing with example 1 same structure with check valve 345a, 345b, non return valve for outflow 346a, 346b, its explanation of Therefore, omited.
Operating sequence to refrigerant-recovery explains below.
At first, be connected with the maintenance port portion of the triple valve 28 of off-premises station 26 main bodys connecting valve 31 sides.At this moment, as connecting valve 31, uses fastening spool bossing on the triple valve 28, and the type that pushes of direction to the inside of being arranged on.Thus, pressure hose 35 becomes the state with the internal communication of connecting pipings, and refrigerant gas stops after arriving non return valve for outflow 346a, the 346b of refrigerant-recovery with pump 34.Then the perforation of refrigerant recovering apparatus is clamped and directly offer through hole on 32 sides and the connecting pipings 30 and be connected.The ball valve of perforation this moment pincers 32 is in open mode.Its result, formation from perforation pincers 32 be connected to pressure hose 33, refrigerant-recovery with pump 34, pressure hose 35, connect the bypass path of valve 31, the refrigerant gas of indoor set inside and connecting pipings 29,30 inside is imported into cylinder container 341 inside by air-breathing with check valve 345a, 345b quickly.Then by with the γ place configuration gripping pliers 36 of the connecting pipings 29 of its repetition, will become the circuit complete closed of the connecting pipings 30 of repetition, utilize die nut will be positioned at off-premises station 26 main bodys side surface part two-port valve 27 the valve rotation and it is closed.Then, by the handle 344 of refrigerant-recovery with pump 34 moved to the A direction, refrigerant gas in A side one Room of cylinder container 341 inside is compressed and forcibly is fills up to off-premises station 26 main bodys by non return valve for outflow 346b.In addition, B side one Room towards cylinder container 341 inside, refrigerant gas is further by the air-breathing inside that imports cylinder container 341 with check valve 345a.By refrigerant-recovery is moved to the B direction with the handle 344 of pump 34, the refrigerant gas in B side one Room of cylinder container 341 inside is compressed and forcibly is fills up to off-premises station 26 main bodys by non return valve for outflow 346a then.Simultaneously, A side one Room towards cylinder container 341 inside, refrigerant gas is further by the air-breathing inside that imports cylinder container 341 with check valve 345b.By repeating this operation, be recycled in off-premises station 26 bodies to the being forced to property of refrigerant gas of indoor set inside and connecting pipings 29,30 inside.After having confirmed that with the low pressure gauge midway 37 that is arranged on pressure hose 33 indoor set inside and connecting pipings 29,30 inside reach negative pressure state from malleation, it is closed with the valve of die nut swivel tee valve 28.Then, will bore a hole pincers 32 and gripping pliers 36 when connecting pipings 30 is removed, by the connection valve 31 of maintenance port portion is removed, then refrigerant-recovery finishes.
Here, say closely, remain in triple valve 28 and also carry out airborne release with the refrigerant gas of the pipe arrangement inside in the γ place of connecting pipings 30 and the refrigerant gas that remains in from non return valve for outflow 336a, 336b to pressure hose 35 inside that are connected valve 31.Therefore, by between the γ place of shortening triple valve 28 and connecting pipings 30 apart from and the length of pressure hose 35, the airborne release of refrigerant gas can be suppressed to that to compare with overall weight be small amount.The refrigerant gas pressure of cold-producing medium R410A in the time of 20 ℃ is 14.71kgf/cm to the maximum
2, pretend and be the refrigerant-recovery pump, as long as have the boost capability of 15kgf/cm, just can carry out sufficient refrigerant-recovery.But, even 10kgf/cm
2Boost capability, so long as the refrigerant-recovery pump of the such structure of this example, just can think the recovery ability that can carry out refrigerant-recovery under not having the state of pressure reduction in two Room of cylinder container.
(example 4)
Below example 4 is explained.
In this example 4, identical with example 3, for air conditioner 1 indoor set and 1 off-premises station coupling, that use the R410A cold-producing medium, suppose compressor fault and the occasion that can't move describes.Fig. 8 is the main composition portion of refrigerant recovering apparatus of example 4 and the figure of its pipe arrangement annexation.On off-premises station 26 main bodys, be provided with two-port valve 27, triple valve 28, be connected with indoor set (not shown) by connecting pipings 29,30.Be connected with the maintenance port portion of the triple valve 28 of off-premises station 26 main bodys connecting valve 38 sides, simultaneously, connect connecting pipings speed as refrigerant recovering apparatus with the structure of on connecting pipings 30, directly offering through hole and connect with the employed perforation of accessory and clamp 39 sides.Its result, constitute from perforation pincers 39 be connected to pressure hose 40, refrigerant-recovery with pump 41, pressure hose 42, connect the bypass path of valve 38, with the γ place configuration gripping pliers 43 of the connecting pipings 30 of its repetition.Be provided with oil eliminator 44 and low pressure gauge 45 midway at pressure hose 40.
The basic structure of refrigerant-recovery usefulness pump 41 is identical with example 1 use.By being divided into two Room at cylinder container 411 internal configurations pistons 412, be connected with movable axis 413 on the piston 412, on connecting portion, be equipped with the screw axis 414 of band ball bearing.Movable axis 413 connects cylinder container 411 and gives prominence to the outside.In addition, be equipped with air-breathing with check valve 415 and non return valve for outflow 416 at the lower dead point position place of the piston 412 of a Room side that does not dispose movable axis 413, on piston 412, be equipped with the O shape ring 417 of HNBR system, prevent the leakage of refrigerant gas at piston 412 peripheral parts.In addition, at movable axis 413 towards upper and lower to when action, cylinder container 411 parts of joining with movable axis 413 are equipped with elastomer 418.In addition, because of having used air-breathing with example 1 same structure, its explanation of Therefore, omited with check valve 415, non return valve for outflow 416.
Refrigerant-recovery is fixed in substrate 46 with pump 41, and support column 47 also is fixed in substrate 46.Refrigerant-recovery is connected with an end of handlebar 48 by the screw axis 481 that becomes the 1st connecting portion with the movable axis 413 of pump 41, and the pars intermedia of handlebar 48 is connected with support column 47 by the screw axis 482 of the 2nd connecting portion.On screw axis 481, be provided with ball bearing, on screw axis 482, also be provided with ball bearing.In addition, handle portion 483 is places of the actual application of force of operating personnel.If with between screw axis 481 and the screw axis 482 apart from distance as 1, between screw axis 482 and the handle portion 483 as 3 words, then to handle portion 483 application of forces, screw axis 482 becomes fulcrum, screw axis 481 becomes application point, acts on the power of handle portion 483 so long as directly act on 1/3 the getting final product of power of movable axis 413.With respect to moving of the above-below direction of handle portion 483, screw axis 482 becomes fulcrum, and to the handle axial action, refrigerant-recovery is made knee-action with the movable axis 413 of pump 41 by screw axis 481.At this moment, because screw axis 481 is fixed with screw axis 482, the direction of action of movable axis 413 is with respect to substrate 46 and to the lateral shift slightly of vertical direction.In order to tackle this lateral shift, the part of joining in movable axis 413 and cylinder container 411 is provided with elastomer 418, and simultaneously, piston 412 makes the structure that is connected by screw axis 414 with movable axis 413.In addition, as the cold-producing medium work done during compression, only load is big when the operating personnel mentions operation upward with handle portion 483.
The operating sequence of refrigerant-recovery and example 1 are more or less the same, the Therefore, omited explanation.The refrigerant gas pressure of cold-producing medium R410A in the time of 30 ℃ is 19.20kgf/cm to the maximum
2, pretend and be the refrigerant-recovery pump, as long as have 20kgf/cm
2Boost capability, just can carry out sufficient refrigerant-recovery.So long as the refrigerant-recovery pump of the such structure of this example, by utilizing lever principle well, even hand also can have 20kgf/cm
2Boost capability.Therefore, utilizing when refrigerant-recovery is moved with the piston of pump, the bleeding of refrigerant gas becomes work done during compression, so need sizable load, by utilizing leverage, can reduce the required peak load of bleeding, improve the operation of using manpower significantly.
Below the oil eliminator that uses in this example is explained.Fig. 9 is the cutaway view of the structure of expression oil eliminator.Oil eliminator 44 is that ring 442 in cylindraceous is arranged on rustless steel container cylindraceous 441 inside, use 32 purpose stainless (steel) wires as interior ring 442, simultaneously, three layers of the discoideus stainless (steel) wires of same 32 purposes 443,444,445 minutes and certain interval that is separated by are configured.Become the structure that refrigerant gas enters, comes out from outlet 447 from introducing port 446.Thus, the compressor of following refrigerant gas by clashing with stainless (steel) wire, and only makes oil separate with oil.
In this example, carry out refrigerant-recovery pressure hose 40 be provided with oil eliminator midway.In the configuration structure of air conditioner, indoor set is arranged on the occasion in the place higher than off-premises station position, though it is few with oil to remain in the compressor of indoor set inside and connecting pipings inside, but indoor set is arranged on the occasion in the place lower than off-premises station position, in case the oil of discharging from compressor is difficult to return, remain in the compressor Chuck Steak of indoor set inside and connecting pipings inside sometimes in the operation of air-conditioner.Such as, in the common 4.0kW level about maximum sometimes residual 30ml.Therefore, in this occasion, with oil eliminator 44 with cold-producing medium with carry out the refrigerant-recovery operation with refrigerant-recovery with pump again after oil separates, then operation is better.
(example 5)
Below example 5 is explained.
In this example 5, identical with example 3, for air conditioner 1 indoor set and 1 off-premises station coupling, that use the R410A cold-producing medium, suppose compressor fault and the occasion that can't move describes.Figure 10 is the main composition portion of refrigerant recovering apparatus of example 5 and the figure of its pipe arrangement annexation.On off-premises station 26 main bodys, be provided with two-port valve 27, triple valve 28, be connected with indoor set (not shown) by connecting pipings 29,30.Be connected with the maintenance port portion of the triple valve 28 of off-premises station 26 main bodys connecting valve 49 sides, simultaneously, on connecting pipings 30, directly offer through hole and connect the perforation that the connecting pipings speed as refrigerant recovering apparatus connects with the accessory use and clamp 50 sides.Therefore, constitute from perforation pincers 50 be connected to pressure hose 51, refrigerant-recovery with pump 52, pressure hose 53, connect the bypass path of valve 49, with the γ place configuration gripping pliers 54 of the connecting pipings 30 of its repetition.Pressure hose 51 be provided with oil eliminator 55 and low pressure gauge 56 midway, oil eliminator 55 uses the structure identical with example 4.
The structure of refrigerant-recovery usefulness pump 52 is identical with example 1 use, by being divided into two Room at cylinder container 521 internal configurations pistons 522, is connected with movable axis 523 on the piston 522, and movable axis 523 connects cylinder container 521 and gives prominence to the outside.In addition, be equipped with at the lower dead point position place of the piston 522 of a Room side that does not dispose movable axis 523 air-breathing with check valve 524 and non return valve for outflow 425.On piston 522, be equipped with the O shape ring 526 of HNBR system, prevent the leakage of refrigerant gas at piston 522 peripheral parts.In addition, because of having used air-breathing with example 1 same structure, its explanation of Therefore, omited with check valve 524, non return valve for outflow 525.
Refrigerant-recovery is fixed in substrate 57 with pump 52, and support column 58 also is fixed in substrate 57.Refrigerant-recovery is connected with support column 58 by handlebar 59 with the movable axis 523 of pump 52.The end of handlebar 59 is connected with movable axis 523 at screw axis 591 places, and the pars intermedia of handlebar 59 is connected with support column 58 at screw axis 592 places.Be provided with the direction of rotation needle bearing on screw axis 591, being provided with on screw axis 592 can be to the rectilinear direction needle bearing of handle axial action.In addition, handle portion 593 is places of the actual application of force of operating personnel.Here, if with between screw axis 591 and the screw axis 592 apart from distance as 1, between screw axis 592 and the handle portion 593 as 3 words, in case to handle portion 593 application of forces, then screw axis 592 becomes fulcrum, screw axis 591 becomes application point, acts on the power of handle portion 593 so long as directly act on 1/3 the getting final product of power of movable axis 523.
When handle portion 593 above-below directions moved, screw axis 591 became application point, and screw axis 592 becomes fulcrum.Here, can be by on screw axis 592, being provided with in Handle axis to the rectilinear direction needle bearing of making sliding action, make handlebar 59 make horizontal sliding action, the direction that refrigerant-recovery is carried out knee-action with the movable axis 523 of pump 52 can be kept the vertical direction with respect to substrate 57.In addition, as the cold-producing medium work done during compression, only load is big when the operating personnel mentions operation upward with handle portion.
The operating sequence of refrigerant-recovery and example 1 are more or less the same, the Therefore, omited explanation.The maximum 24.65kgf/cm of the refrigerant gas pressure of cold-producing medium R410A in the time of 40 ℃
2, pretend and be the refrigerant-recovery pump, as long as have 30kgf/cm
2Boost capability, just can carry out sufficient refrigerant-recovery.So long as the refrigerant-recovery pump of the such structure of this example, by utilizing lever principle well, even hand also can have 30kgf/cm
2Boost capability.
(example 6)
Below example 6 is explained.
In this example 6, identical with example 3, for air conditioner 1 indoor set and 1 off-premises station coupling, that use the R410A cold-producing medium, suppose compressor fault and the occasion that can't move describes.Figure 11 is the main composition portion of refrigerant recovering apparatus of example 6 and the figure of its pipe arrangement annexation.Be provided with two-port valve 27, triple valve 28 in off-premises station 26 main bodys, be connected with indoor set (not shown) by connecting pipings 29,30.Be connected with the maintenance port portion of the triple valve 28 of off-premises station 26 main bodys connecting valve 60 sides, simultaneously, on connecting pipings 30, directly offer through hole and connect the perforation that the connecting pipings speed as refrigerant recovering apparatus connects with the accessory use and clamp 61 sides.Therefore, constitute from perforation pincers 61 be connected to pressure hose 62, refrigerant-recovery with pump 63, pressure hose 64, connect the bypass path of valve 60, with the γ place configuration gripping pliers 65 of the connecting pipings 30 of its repetition.Be provided with low pressure gauge 66 midway at pressure hose 62.
The structure of refrigerant-recovery usefulness pump 63 is identical with example 2 uses.By being divided into two Room at cylinder container 631 internal configurations pistons 632, be connected with movable axis 633 on the piston 632, movable axis 633 connects cylinder container 631 and gives prominence to the outside.In addition, be equipped with at the upper dead center position place of the piston 632 of a Room side that disposes movable axis 633 air-breathing with check valve 634.In addition, be equipped with non return valve for outflow 635 at the lower dead point position place of the piston 632 of a Room side that does not dispose movable axis 633.And, on piston 632, also being provided with check valve 636, its structure can prevent that the Room side that refrigerant gas never is provided with movable axis 633 from leaking to a Room side that is provided with movable axis 633.In addition, be provided with the O shape ring 637 of HNBR system, prevent that refrigerant gas from leaking at piston 632 peripheral parts at the peripheral part of piston 632.In addition, also be equipped with the O shape ring (not shown) of HNBR system in the through hole that movable axis 633 and cylinder container 631 are joined, leak from movable axis 633 to prevent refrigerant gas.In addition, air-breathing with example 1 same structure, its explanation of Therefore, omited have been used with check valve 634, non return valve for outflow 635, check valve 636.
Refrigerant-recovery is fixed in substrate 67 with pump 63, and support column 68 also is fixed in substrate 67.Refrigerant-recovery is connected with support column 68 by handlebar 69 with the movable axis 633 of pump 63.Handlebar 69 ends are connected with support column 68 at screw axis 692 places, and the pars intermedia of handlebar 69 is connected with movable axis 633 at screw axis 691 places.On screw axis 691, be provided with handlebar 69 and can on screw axis 692, be provided with the direction of rotation needle bearing to Handle axis to the rectilinear direction needle bearing that moves.In addition, handle portion 693 is places of the actual application of force of operating personnel.Therefore, if with between screw axis 691 and the screw axis 692 apart from distance as 1, between screw axis 691 and the screw axis 693 as 3 words, then to handle portion 693 application of forces, screw axis 691 becomes fulcrum, screw axis 692 becomes application point, act on the power of handle portion 693, so long as directly act on 1/3 the getting final product of power of movable axis 623.Can be by on screw axis 691, being provided with in Handle axis to the rectilinear direction needle bearing of making sliding action, with respect to moving of the above-below direction of handle portion 693, screw axis 692 and become fulcrum, by making screw axis 691 towards the handle axial action, refrigerant-recovery is carried out direction up and down with the movable axis 633 of pump 63 can keep vertical direction with respect to substrate 67.In addition, as the cold-producing medium work done during compression, only load is big when the operating personnel depresses operation downwards with handle portion.
In the above example of the present invention, connect representative with speed, having utilized perforation to clamp and being illustrated, but spendable connecting pipings speed connects with accessory and is not limited thereto among the present invention with accessory as connecting pipings.Connecting pipings with respect to no connectivity port can directly be provided with connecting portion, so long as can not carry out the instrument of refrigerant-recovery operation at cold-producing medium under the situation of big gas leakage, also can utilize other instruments.In addition, sometimes according to refrigerant-recovery pump structure difference, connecting pipings speed connects with not needing ball valve in the accessory, but as has been provided with ball valve and also has nothing bad.Consider the refrigerant-recovery pump structure on the limit, the limit is judged according to the security of refrigerant-recovery operation and is got final product.
In addition, in the example of the present invention, the instrument as sealing connecting pipings circuit utilized gripping pliers to be illustrated, but the sealing of spendable connecting pipings circuit is not limited to gripping pliers with instrument among the present invention.So long as can also can use other instruments simply with the instrument of refrigerant gas runner blocking-up with respect to connecting pipings.
In addition, in the present embodiment, cold-producing medium is the occasion of R22, and O shape ring has used the rubber of CR system, and cold-producing medium is the occasion of R407C, R410A, has used the rubber of HNBR system.O shape ring is also needed to select the material of optimal hardness when considering anti-cold-producing medium, oil resistivity.
In the example 5 of the present invention, the needle bearing that the screw axis that handlebar is connected with movable axis has used direction of rotation to use, the screw axis that is connected with support column has been used the rectilinear direction needle bearing, in the example 6, the screw axis that is connected with movable axis, the needle bearing that has used rectilinear direction to use, the screw axis that is connected with support column has been used the direction of rotation needle bearing.On screw axis, set the occasion of rectilinear direction, preferably be arranged on the connecting portion at the pars intermedia place of handle portion with needle bearing.In addition, be applicable to that structure of the present invention is not limited thereto.The structure that preferably can utilize lever principle, the fulcrum that makes active force or application point part to move swimmingly one of connecting portion can be slided to the handlebar direction in addition.Therefore, preferably rolling bearing structure or sliding bearing structure.As rolling bearing structure, also can use the ball bearing mode of example 4, the material of sliding bearing structure uses the material of teflon system, graphite system.In addition, also can be to rolling bearing structure or sliding bearing structure supplying lubricating oil, with further raising lubricity.
In this example, air-breathingly all used the check valve that utilizes compression helical spring power, but spendable structure is not limited thereto among the present invention with check valve, non return valve for outflow etc.The non return valve for outflow side is because directly contact with refrigerant gas, so valve arrangement needs enough intensity.In addition, air-breathing with the occasion of check valve at no ball valve equal pressure control valve, equally need be as the intensity of valve arrangement.But when air-breathing occasion with check valve, compression helical spring power were too strong, then the refrigerant-recovery rate descended.That is, because come transfer valve by air-breathing pressure reduction with check valve, and make compression helical spring power too strong, then the valve pole switching point of accumulation place's refrigerant-recovery operation in the refrigerant-recovery operation stops.Therefore, the spring constant that is used for air-breathing collapse coil spring with check valve is preferably about 0.2～1N/mm.In addition, as non return valve for outflow, preferably use than about its 0.4 big～0.8N/mm.
In addition, in this example, though be to filling the air conditioner of cold-producing medium R22, R407C, R410A implemented refrigerant-recovery, purposes of the present invention is not limited thereto.Cold-producing medium R410A compares with cold-producing medium R22, because refrigerant pressure is about 1.6 times under same temperature conditions, so need the design of boosting of refrigerant recovering apparatus that can be corresponding with it.So long as the such refrigerant-recovery pump structure of example 1, then because to become a Room of cylinder be atmospheric pressure state and the structure of carrying out refrigerant gas compression work done in another chamber, so the sizable load of generation.So long as the such refrigerant-recovery pump structure of example 2 or example 3, then two Room in the cylinder container are uniform refrigerant pressure relation, and what liquid refrigerant was residual can carry out refrigerant-recovery operation to the off-premises station main body with little load originally.But, owing to carry out the refrigerant-recovery operation, and only remaining gas refrigerant, so the load of refrigerant gas work done during compression is increased.Therefore, in order to improve the rate of recovery of refrigerant-recovery from the air conditioner that can't extract, refrigerant-recovery needs 10～30kgf/cm with the boost capability of pump
2For this reason, there is certain limit in the manpower operation, must need to reduce being used for the sectional area of refrigerant-recovery with the cylinder container of pump.Although because of the structure of refrigerant recovering apparatus different, specifically, so long as 1～4cm
2Just can carry out the compressed action of sufficient refrigerant gas with manpower.Such as, so long as utilized the refrigerant recovering apparatus of leverage,, just can reduce to follow the peak load of operation by utilizing lever principle well.But, as take the structure of Tai Ji end, and refrigerant recovering apparatus increases, and volume is too big during Handling device.Therefore, even utilize lever principle, preferably the structure in fulcrum, application point, force is that the degree of the peak load reduction by 1/2～1/5 when making operation is good.
Thus, refrigerant recovering apparatus of the present invention and refrigerant recovering method, be that to carry out refrigerant-recovery with electrification not be purpose, by utilizing the such leverage effects that also has in the embodiments of the invention, then no matter to which type of refrigerant gas, by improving the structure of refrigerant recovering apparatus, just can significantly alleviate operating personnel's burden.In addition, in this example, to off-premises station, but also the available refrigerants recycling can replaces off-premises station with refrigerant-recovery.
Claims (19)
1. refrigerant recovering apparatus connects indoor set and off-premises station with connecting pipings, with the part sealing of refrigerant loop, the refrigerant-recovery of air conditioner inside to described off-premises station or refrigerant tank, be is characterized in that, comprises at least:
The refrigerant-recovery pump, the movable axis that this refrigerant-recovery has cylinder container, the piston in described cylinder container inner moveable, air-breathing usefulness check valve and non return valve for outflow, is connected with described piston with pump;
The connecting pipings speed that is connected with the described connecting pipings of described air conditioner connects uses accessory; And
Described connecting pipings speed connect with accessory air-breathingly carry out the flexible pipe that pipe arrangement is connected with check valve and described non return valve for outflow with described.
2. refrigerant recovering apparatus connects indoor set and off-premises station with connecting pipings, with the part sealing of refrigerant loop, the refrigerant-recovery of air conditioner inside to described off-premises station or refrigerant tank, be is characterized in that, comprises at least:
The refrigerant-recovery pump, this refrigerant-recovery with pump have cylinder container, at the piston of described cylinder container inner moveable, air-breathingly be connected with non return valve for outflow, with described piston and connect described cylinder container to the outstanding movable axis in outside with check valve, make described piston movable by leverage to the described movable axis application of force;
The connecting pipings speed that is connected with the described connecting pipings of described air conditioner connects uses accessory; And
Described connecting pipings speed connect with accessory air-breathingly carry out the flexible pipe that pipe arrangement is connected with check valve and described non return valve for outflow with described.
3. refrigerant recovering apparatus as claimed in claim 2 is characterized in that,
Refrigerant-recovery with pump have fixing cylinder container substrate, be arranged on support column, handlebar on the described substrate,
The 2nd connecting portion that also has the 1st connecting portion that will couple together towards the outside outstanding end of described movable axis and described handlebar, described support column and described handlebar are coupled together,
With described the 2nd connecting portion is fulcrum, and described the 1st connecting portion is an application point, and the end of described handlebar is the force, and makes described piston movable.
4. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described air conditioner has two-port valve or triple valve, closes and make the part sealing of refrigerant loop to either party of described two-port valve of major general or triple valve.
5. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described cylinder container inside is divided into two Room by described piston,
Do not disposing a Room side of described movable axis, disposing described air-breathing with check valve and described non return valve for outflow.
6. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described cylinder container inside is divided into two Room by described piston,
Be equipped with the air-breathing check valve of using in a Room side, be equipped with described non return valve for outflow, have the check valve that prevents to be equipped with a Room side flow of described air-breathing usefulness check valve from another chamber side direction that is equipped with described non return valve for outflow in another chamber side.
7. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described cylinder container inside is divided into two Room by described piston,
Each indoor described air-breathing usefulness check valve and described non return valve for outflow of disposing respectively,
Described air-breathingly connect with check valve side line route outside, and described non return valve for outflow side line route outside connects.
8. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
It is the perforation pincers that described connecting pipings speed connects with accessory.
9. refrigerant recovering apparatus as claimed in claim 4 is characterized in that,
Described connecting pipings speed connects with at least one of accessory and is connected with the maintenance port portion of described triple valve.
10. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
On connecing with accessory, described connecting pipings speed is equipped with the runner control valve.
11. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
On the described air-breathing circuit way that connects with check valve and described connecting pipings speed with accessory, be provided with oil eliminator.
12. refrigerant recovering apparatus as claimed in claim 3 is characterized in that,
Described the 1st connecting portion and described the 2nd connecting portion are rolling bearing structure or sliding bearing structure.
13. refrigerant recovering apparatus as claimed in claim 3 is characterized in that,
Described the 1st connecting portion and described the 2nd connecting portion, when one side is a rectilinear motion when using bearing arrangement, the opposing party uses bearing arrangement for rotatablely moving.
14. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described refrigerant-recovery is 10～30kgf/cm with the boost capability of pump
2
15. as each described refrigerant recovering apparatus in the claim 1～3, it is characterized in that,
Described refrigerant-recovery is 1～4cm with the sectional area of the described piston of pump
2
16. the refrigerant recovering method of an air conditioner connects indoor set and off-premises station with connecting pipings, sets two-port valve and the triple valve port as described connecting pipings on described off-premises station, it is characterized in that having following operation:
Bypass path is arranged on operation on the described connecting pipings part on described two-port valve or the triple valve limit;
The operation that to be sealed with the circuit part of the described connecting pipings of described bypass path displacement;
The operation that described two-port valve or triple valve are closed;
The operation that disposes refrigerant-recovery usefulness pump midway in described bypass path;
To remain in the operation that described indoor set refrigerant gas inner and described connecting pipings inside is recycled to described off-premises station or refrigerant tank by refrigerant-recovery with pump;
The operation that described triple valve or two-port valve are closed then.
17. the refrigerant recovering method of an air conditioner connects indoor set and off-premises station with connecting pipings, as the port of described connecting pipings, two-port valve and triple valve is configured on the described off-premises station, it is characterized in that having following operation:
After closing described triple valve, near the part of the described connecting pipings described two-port valve is provided with the operation of bypass path;
The operation that to be sealed with the part, path of the described connecting pipings of described bypass path displacement;
The operation that disposes refrigerant-recovery usefulness pump midway with described bypass path;
By described refrigerant-recovery pump, the operation that described indoor set refrigerant gas inner and described connecting pipings inside is recycled to described off-premises station or refrigerant tank will be remained in;
The operation that described two-port valve cuts out then.
18. the refrigerant recovering method of an air conditioner connects indoor set and off-premises station with connecting pipings, as the port of described connecting pipings, two-port valve and triple valve is configured on the described off-premises station, it is characterized in that having following operation:
After closing described two-port valve, the maintenance port portion of described triple valve and near the part of described connecting pipings the operation of bypass path is set;
The operation that to be sealed with the part, path of the described connecting pipings of described bypass path displacement;
The operation that disposes refrigerant-recovery usefulness pump midway with described bypass path;
By described refrigerant-recovery pump, the operation that described indoor set refrigerant gas inner and described connecting pipings inside is recycled to described off-premises station or refrigerant tank will be remained in;
The operation that described triple valve is closed then.
19. the refrigerant recovering method as each described air conditioner in the claim 16～18 is characterized in that,
The operation of sealing described connecting pipings path is the operation of the path of described connecting pipings being sealed with gripping pliers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002232408A JP3711968B2 (en) | 2002-08-09 | 2002-08-09 | Refrigerant recovery method for air conditioner |
| JP2002232408 | 2002-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1488900A true CN1488900A (en) | 2004-04-14 |
Family
ID=32017818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031530354A Pending CN1488900A (en) | 2002-08-09 | 2003-08-08 | Refrigerant recovery device and refrigerant recovery method for air conditioner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3711968B2 (en) |
| KR (1) | KR20040014347A (en) |
| CN (1) | CN1488900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485771A (en) * | 2016-01-04 | 2016-04-13 | 广东美的暖通设备有限公司 | Air conditioner system and refrigerant recycling control method and device thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101035440B1 (en) * | 2009-03-18 | 2011-05-18 | 임관순 | Mechanical type air-conditioning system using hydraulic pump |
| KR101035475B1 (en) * | 2009-03-18 | 2011-05-18 | 임관순 | Electronical type air-conditioning system using hydraulic pump |
| KR101105993B1 (en) | 2011-06-30 | 2012-01-18 | 현대위아 주식회사 | Device for removing salt on sliding tube |
| CN108534409B (en) * | 2018-03-24 | 2020-06-05 | 山东福瑞德冷冻空调有限公司 | Air conditioner refrigerant recovery device |
-
2002
- 2002-08-09 JP JP2002232408A patent/JP3711968B2/en not_active Expired - Fee Related
-
2003
- 2003-08-08 KR KR1020030054917A patent/KR20040014347A/en not_active Application Discontinuation
- 2003-08-08 CN CNA031530354A patent/CN1488900A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485771A (en) * | 2016-01-04 | 2016-04-13 | 广东美的暖通设备有限公司 | Air conditioner system and refrigerant recycling control method and device thereof |
| CN105485771B (en) * | 2016-01-04 | 2018-12-07 | 广东美的暖通设备有限公司 | Air-conditioning system and its refrigerant recovering control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040014347A (en) | 2004-02-14 |
| JP2004069252A (en) | 2004-03-04 |
| JP3711968B2 (en) | 2005-11-02 |
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