CN102997524A - Refrigerant recycling machine - Google Patents
Refrigerant recycling machine Download PDFInfo
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- CN102997524A CN102997524A CN2011102822420A CN201110282242A CN102997524A CN 102997524 A CN102997524 A CN 102997524A CN 2011102822420 A CN2011102822420 A CN 2011102822420A CN 201110282242 A CN201110282242 A CN 201110282242A CN 102997524 A CN102997524 A CN 102997524A
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Abstract
The invention discloses a refrigerant recycling machine, which is small and portable and combined with a double-piston compressor integrally, wherein the double-piston compressor uses a dog link driving mechanism. The refrigerant is ordinarily transferred in a storage tank from a surveying or maintaining system, although the transferring can be carried out in the other directions. A piston reciprocating in a compressor of a recycling unit moves along a public fixing shaft and is driven by the reciprocation of the dog link. The refrigerant recycling machine can further use a single-piston compressor driven by a dog link mechanism. The invention provides a condenser used for discharging the refrigerant gas compressed by each cylinder. An ordinary integral valve group is used for controlling, guiding, stabilizing a temperature and the minimum residual of the refrigerant in a unit during and after transferring. An internal fan is used for raising the temperature of a minimum dynamic drive motor; if the internal fan is used, the temperature of the refrigerant increased by compression cycling can be reduced and the coil of the condenser can be cooled. The refrigerant recycling machine can be combined with an ordinary branch manifold from a control valve of a compressor cylinder cover.
Description
Technical field
The present invention relates to portable refrigerant-recovery unit field.
Background technology
Portable refrigerant-recovery unit is mainly used in cold-producing medium is transferred to another tank or refrigeration system from a refrigeration system or tank.Use the refrigerant-recovery unit to allow the cold-producing medium that is removed to transfer to another system or tank and do not lose cold-producing medium and prevent pressure gap from system or tank.The operation that then just can need in system or the tank enforcement of sky and other service.
There are some problems in recovery unit in the transfer that realizes cold-producing medium.The initial pressure of the cold-producing medium in refrigeration system usually can be higher (100 to 500psi).These pressure can comprise that at the assembly of unit piston and driving mechanism produce very large pressure.In some cases, initial pressure may highly arrive the driving mechanism of suppressing recovery unit, stops its startup.In reclaimer operation early stage cycle period, the force rate that produces by the compressed refrigerant that imports is larger, and can bring the impact of impact.If can not in driving mechanism and other assembly, suitably disperse these strength, the assembly that these power can the damage and wear unit so.
Some previous designs attempt by with the exposed at both sides of piston in the cold-producing medium of compression, so that the power that acts on the piston minimizes.The existing design of nearly all these all can cause not only the bottom surface of piston cap is exposed in the cold-producing medium, and piston rod and driving mechanism (bent axle) are exposed in the cold-producing medium.Owing to may contain oil and other impurity (metallic particles etc.) in the cold-producing medium, other parts of the piston rod that therefore exposes, bent axle, recycling machine can be worn and torn and be damaged prematurely, particularly at sealing and bearing place.In some previous structures, these parts of unit are not exposed in the cold-producing medium, by operating another piston along bent axle with 180 degree different phases, make hardy that wearing and tearing and the damage to driving mechanism (crankshaft bearing) minimizes from the power of cold-producing medium.Yet these structures still depart from the axle piston rod of bent axle, and mutually do not have alignment to cause unbalanced power.In many cases, they are pivotally mounted to (with piston pin or ball cover) on the piston rod with piston head.Power at the cold-producing medium of the compression on the bent axle can be cancelled under this structure.Depart from piston rod that install at the center and that do not have to align and still bent axle is applied unbalanced power.The power of cold-producing medium of compression also still acts on the pivot structure between each piston head and the bar.Pivot structure can show too early wearing and tearing, and this wearing and tearing cause the unsettled work of piston and cause sealing leak.After a small amount of use, this pivot structure can be entirely ineffective.
Consider these and other some problem, researched and developed the present invention.
Summary of the invention
The present invention relates to a kind of Portable refrigerant and reclaim and buanch unit, be used for cold-producing medium is transferred to another tank or the refrigeration system from a refrigerant system or tank.This recovery unit comprises two opposed piston heads, and piston head is connected to respectively on the piston rod rigidly, and described piston rod extends along public fixed axis.This piston rod is connected on the yoke parts of dog link structure rigidly.This dog link structure is driving mechanism, is transformed into yoke parts, rigidly connected piston rod and along the reciprocating motion of the piston head of public fixed axis such as rotatablely moving of motor.Recovery unit can also be the design with a piston, and it has one along the spring of public axle, with the energy of storing some intake strokes and in compression stroke with its release.
During operation, the cold-producing medium that imports from system or tank is sent directly to opposed piston head together and continuously, and the power that wherein acts on the compressed refrigerant above them is cancelled out each other or neutralized.The design of single piston is with contend with some power of compression stroke of spring.The driving mechanism of unit makes piston be independent of the size that is created in any power on the piston by the cold-producing medium that imports and moves reciprocatingly.The flow path of cold-producing medium also is independent of piston rod and driving mechanism, to avoid being exposed to any impurity in the cold-producing medium.Generally cold-producing medium may enter into driving mechanism (crankcase) in other design.
Comprise crankcase and the one way stop peturn valve of a sealing in another one embodiment of the present invention, wherein one way stop peturn valve is installed between refrigerant inlet and the crankcase.This structure allows anyly to enter cold-producing medium in the crankcase by piston oil seal, and is emptying from crankcase.One way stop peturn valve stops cold-producing medium directly to enter crankcase from the entrance side of compressor, and allows any cold-producing medium in the crankcase is emptying.
As mentioned above, single piston compressor of dog link driving also has counteracting is created at least part of power on the piston head by the compressed refrigerant that imports structure.
Description of drawings
Figure 1A is the stereogram of Portable refrigerant recovery unit of the present invention.
Figure 1B is typical operating structure, and wherein recovery unit is used for cold-producing medium is transferred to storage tank from refrigeration system.
Fig. 1 C is the front view that recycling machine is removed protecgulum,
Fig. 2 schematically shows the some work structure of Figure 1B,
Fig. 3-5 is the successive views of the operation of the opposed piston of compressor of the present invention and dog link driver,
Figure 6 shows that piston, dog link driver and check-valves begin to be connected to the view of the refrigeration system among Figure 1B, wherein the pressure of refrigeration system and storage tank equated before compressor start,
Fig. 7 is the stereogram with compressor that is connected and installed support of sealing,
The view that Fig. 8 looks for the check-valves direction along axis T along Fig. 5,
Fig. 9 is the exploded view of the dog link driving mechanism of compressor,
Figure 10 is the viewgraph of cross-section of portable recovery unit,
Figure 11 is the rearview of the cooling fan of recovery unit,
Figure 12 is the view of cooling fan,
Figure 13 is the viewgraph of cross-section of the embodiment of single piston of the present invention.
The specific embodiment
Figure 1A is depicted as Portable refrigerant recovering machine 10 of the present invention.The typical operation of the refrigerant recovering machine among Figure 1B comprises to be transferred to cold-producing medium tank 12 or transfers to the different system or tank from system 11.The basic operation of Figure 1B and 1C comprises that cold-producing medium is at downside mouth 1, by valve 3, be divided into two streams, by the pipeline 17 among Fig. 2, pipeline 170, then by the cylinder cover 94,95 among Fig. 3, enter into compression cylinder inner chamber 39,390 by one-way inlet valve 36,360.Cold-producing medium is compressed in inner chamber 39,390, by cylinder cover 94,95 and check valve 37,370 the discharging.Cold-producing medium returns the valve group 15 among Fig. 1 C under the inlet pressure of pressure greater than mouth 1.Because compression cycle increases the heat energy content of cold-producing medium, valve group 15 imports to cold-producing medium in two condensers 21,210 among Fig. 2 again, is used for the cooling refrigeration agent.The discharging of condenser directly guides by pipeline being connected multifunction valve group 15.Cold-producing medium is discharged in tank or the system by valve 4 and mouth 2.
Circulation path in the valve group 15 of cold-producing medium in Fig. 1 C is: enter into compressor 23 from entrance 1 by control valve 3.Cold-producing medium is compressed and be discharged into condenser 21,210 among Fig. 2, enters into valve body 15 by check-valves, then enters valve 4 and outlet 2.Valve group 15 also cooperates with valve 5, is used for guiding cold-producing medium to flow to condenser 21,210 from the entrance of compressor 23, and cold-producing medium is discharged from condenser 21,210.Also as reconnecting pipeline and mouth, when spending with convenient valve 3 and valve 5 each Rotate 180, it reconnects cold-producing medium stream directly by check-valves, then by valve 4 and outlet 2 for valve group 15 and valve 5.Valve 3,5 rotation also have been connected to condenser 21,210 low-pressure side of compressor, thereby condenser 21,210 is drained into vacuum, to eliminate any cold-producing medium that may remain in the machine after cold-producing medium shifts.
The valve group 15 of the one among Fig. 1 C has three or more 180 degree rotatable valve 3,4,5, and what it had an one leads to the outer passage of valve group.Three rotatable valves are as the pipelines 16,22 in the entrance 1 of recycling machine and outlet 2 control cold-producing mediums streams, Fig. 2, and again with condenser 21,210, and connecting line is connected in the different configurations with compressor 23 among Fig. 7.A configuration may be that the suction side 18,180 among Fig. 2 of compressor 23 is connected to for example condenser 21,210 of different assemblies, the shell 42 of Fig. 7, and configuration is discharged the flow passage of remaining cold-producing medium when cold-producing medium shifts end.Many combinations can import the valve group 15 among Fig. 1 C.Transfer of heat in order to occur, to stablize the operating condition of recycling machine in the setting of the path of one between the condition of different cold-producing mediums.To the fluid passage 16,20 of the valve group 15 from compressor head to three or more valve, 200 with the connection of being connected can be by realizing with hard, semihard or soft pipeline.Connection between these assemblies can realize that with hard valve group it is as mechanical pedestal, and positioning base, heat transfer agent and fluid are controlled and be communicated with.
Although can use different thrust units, Motor Drive is drive compression machine preferred embodiment.Compressor also can be configured to the device that long distance connects, and it drives by pulley or connector.The fan that is driven by electric motor for compressor directly is installed on the motor reel, and this fan provides cooling-air for drive motors and compressor cylinder, valve and cylinder cover.The axle of the driver that fan also can be connected by long distance drives.
The shell 101 of the recycling machine among Figure 1A is set to the fixed part of intraware.Handle 102 is integral with shell.Shell also is provided with entrance 103 and outlet louver 104, is used for sucking cooling-air, gives off hot-air, and disperses the internal heat that refrigerant compression and motor operation produce.
The compressor 23 of the recovery unit 10 shown in Fig. 3 has opposed piston 27,270, and they are connected on the piston rod 28,280 respectively rigidly.Piston rod 28,280 extends along public fixed axis T respectively, and is connected to rigidly the yoke parts 29,290 of dog link structure 30.Piston rod 28 among Fig. 3,280 extends in relative direction along public fixed axis T from yoke parts 29,290.Yoke parts 29, the 290th, the part of dog link structure 30.Dog link structure 30 is as rotatablely moving of driving mechanism being converted to yoke parts 29,290 reciprocating motion.It to rigidly connected piston rod 28,280 and piston 27,270 provide along the reciprocating motion of public fixed axis T.
Each piston head 27 among Fig. 3,270 slides and is contained in hermetically in the cylinder 24,240, and aforementioned cylinder has interior cylindrical sidewall 33,330 and end wall 32,320.As shown in Figure 3, each end wall 32,320 has entrance 34,340 and export 35,350, has respectively check valve 36,360 and 37,370 in the described entrance and exit.Each piston head 27,270 has and end wall 32,320 relative piston end caps 38,380, to limit chamber 39,390 end wall 32,320 and sidewall 33,330.These paired structures that basically become mirror image preferably are identical in size, and to help the right strength of equilibrium phase, especially, piston head 27,270 piston end cap 38,380 border circular areas be identical (being that about diameter is one inch) preferably.
Piston rod 28,280 in opposite position with respect to cylinder end wall 32,320 along public fixed axis T mobile piston head 27,270 and piston end cap 38,380.Piston head 27,270 is mutually opposed, and mutually moves with 180 degree out-phase.When the piston head 27 of Fig. 3 moves to its initial position (with reference to figure 4), the volume in chamber 39 enlarges and take in cold-producing medium by common line 13 (Fig. 2 and Fig. 3) and introducing port 25 from the refrigeration system 11 of Figure 1B.Simultaneously, opposed piston head 270 moves to the reposition of its Fig. 3, dwindling the volume in the chamber 49 among Fig. 3 and Fig. 4, thereby cold-producing medium is shifted onto the pipeline 200 from chamber 390.This process then oppositely the piston head 27 of mobile opposed arrangement, 270 and piston end cap 38,380 to Fig. 5 in the position.In position that each piston head shrinks (as, referring to Fig. 5 27), among Fig. 3 substantially parallel piston end cap surface 38 and end wall 32 preferably near and mutually impact and produce maximum pressure (about 300: 1).Shown in Fig. 4-6, piston head 27,270, piston rod 28,280 and piston end cap 38,380 at it during mobile between each piston, force mobile symmetrically along public fixed axis T.
In the operating period of aforesaid compressor 23, the cold-producing medium in the refrigeration system 11 is the most common on atmospheric pressure.In most of the cases, the cold-producing medium of importing will be far above atmospheric pressure (being 100-550psi), and these high pressure energies easily produce the assembly that enough large power is damaged compressor 23.Can be up to the driving mechanism that overwhelms compressor in the initial power of taking over, stop its startup.For the power that prevents damaging and do not need entry condition, piston head 27 of the present invention, 270 and piston end cap 38,380 be oppositely arranged, the power that the compressed refrigerant that wherein imports produces thereon is cancelled or has neutralized.Owing to starts unsuccessfully from having eliminated in essence, and since the damage and wear of the high pressure generation of the compressed refrigerant during the initial cycle that operates greatly reduce.
At first only with reference to A-A line left side among the figure 6 half, the pressure of the cold-producing medium that imports in the pipeline 20 among Fig. 6 is the atmospheric pressure (namely reaching 100-500psi) that surpasses far away usually.These pressure will be opened inlet valve 36 and moment applies power F of generation at the piston end cap 38 of piston head 27.During the initial cycle of reclaimer operation, this power F can increase, until the pressure of the cold-producing medium that imports reduces (namely greatly on 10-100psi) significantly.Power F discussed above is can be enough high so that overwhelm compressor 23 driving mechanism of (only showing piston head 27 and piston rod 28 among Fig. 6), and stops the startup of compressor 23.Until the pressure of the cold-producing medium that imports reduces significantly, the power F (may not be a level and smooth impact) that applies at piston head 27, piston rod 28 and the driving mechanism of compressor 23 may cause too early wearing and tearing even inefficacy.If cold-producing medium is in liquid lower, above-mentioned this special situation can occur especially.At last, along with decline and the cold-producing medium of the refrigerant pressure that imports is under the phase of gaseous state or steam, the size of power F will be reduced along with each stroke of piston head 27.Yet, until the pressure of cold-producing medium (not considering phase) reduces (being about 10-100psi) widely in single plunger designs, each of piston head 27 moves back and forth each power F of cycle period, may damage and the undue assembly that uses compressor 23.This situation is the example that is described as so that the left hand piston head 27 among Fig. 6 and piston rod 28 are carried out only now.
The present invention designs above-mentioned this problem that solves.In Fig. 6 left half side, the unbalanced power F on the piston head 27 in the recovery unit 10 of front is cancelled by the opposite power FF on opposed piston head 270 or neutralizes.The power F of damaging keeps balance by reaction force FF.Because the pressure in two pistons, be that power F, FF trend towards cancelling out each other, this be since comprise piston head 27,270 and piston rod 28,280 intermediate structure along the alignment of T axle, and mutually be rigidly connected, the power F in two pistons and the pressure of power FF trend towards cancelling out each other.The driving mechanism of compressor 23 only need provide differential force D (seeing Fig. 3) that piston head 27,270 is moved back and forth, and lays respectively at cold-producing medium in the chamber 39,390 with compression, and cold-producing medium is driven deliver in the storage tank 12.Because the piston head 27 among Fig. 6,270 and piston end cap 38,380 on power F, FF cancel out each other or neutralize, the driving mechanism of compressor 23 does not need to overcome or offset power F, FF.Therefore the driving mechanism of compressor 23 can be designed to provide a maximum pressure (i.e. 550psi or larger in chamber 39,390), and need not consider or offset any impact of power F, the FF of the cold-producing medium that imports.Compressor 23 can actually produce higher pressure (550-1500psi), but in order to protect safely storage tank 12, the operation of unit 10 is limited in a lower pressure (being 550psi) usually.
Equilibrant force F, FF be particular importance in an application of the invention, and this is because the fluid in the operation discussed above has variable boiling point according to the pressure of cold-producing medium.The cold-producing medium that imports may change phase and change widely power F, FF on piston head 27,270.Yet because balanced design of the present invention, power F, the FF on piston head 27,270 is neutralized along common axis T any time.The power F of the cold-producing medium that in fact driving mechanism of compressor 23 is not imported, FF and/or certain situation (such as pressure, temperature, phase) impact.The differential force D that compressor 23 provides among Fig. 4 will enough repeat mobile two piston heads 27,270, by their circulation cold-producing medium (not considering its phase and state) be transferred to the storage tank 12 from refrigeration system 11.
In when operation, compressor 23 provides differential force D along the direction of public fixed axis T as shown in Figure 3.For clear, differential force D only is shown in Fig. 3, this is because opposite power F, FF among Fig. 6 discussed above have cancelled out each other.Yet when in Fig. 3 compressor 23 being driven to the right, differential force D combines in the same direction with the power F of compressed refrigerant on piston head 27, has produced second power (F+D).Second power is greater than opposite first power FF on opposed piston head 270.The position of opposed piston head 270 its contraction in Fig. 4 is driven into the right side of Fig. 3.
Because power F, FF be tending towards mutual balance, so the power D driven plunger that dog link provides is to its position of compressing fully, and it needs thrust unit that horsepower (energy) is provided.Repetitive cycling mainly is independent of the change of cold-producing medium situation (pressure, temperature, phase) and the change of power F, FF.
For the sake of clarity, when the cold-producing medium that imports is higher than atmospheric pressure at the pressure that produces to the chamber 39,390 from pipeline 25,250, at first produce opposite power F, FF on piston head 27 among Fig. 3,270 the piston end cap 38,380, the power F that these are opposite, the FF orientation is along public fixed axis T.During operation cycle, when piston end cap 38 when the punctured position of its Fig. 5 moves back to expanded position its Fig. 4, the differential force D that dog link structure 30 provides applies on the power F on the piston end cap 38 that is arranged in Fig. 3.It transfers the punctured position in the mobile opposed piston end cap 380 to Fig. 4.The circulation of this repetition mainly is independent of the change of cold-producing medium situation (pressure, temperature, phase) and the change of power F, FF.
Substantially the same for maintenance energy F, FF, above-described importing pipeline 17,170 (Fig. 2) mutually fluid are communicated with, and with Figure 1B in the pipeline 13 of refrigeration system 11 in cold-producing medium be communicated with.It is identical haply with FF that pipeline 17,170 fluid are communicated with assurance power F.As mentioned above, they tend to cancel out each other.Note also that, be communicated with, and be communicated with storage tank 12 by pipeline 22 at the outlet valve 37 of Fig. 3 lumen outlet 35,350, the mutual fluid of outside pipeline 20,200 (Fig. 2) in 370 downstreams.
Because balanced design of the present invention, except the crankcase 31 of exhaust among Fig. 3, be exposed to zone in the cold-producing medium and be chamber 39,390 and the stream that leads to and start from them.Piston head 27 among Fig. 3,270 downside or bottom 40,400 are not exposed in the cold-producing medium, and comprise piston rod 28,280 and the driving mechanism of the assembly of dog link structure 30 be not exposed in the cold-producing medium yet.These parts of recovery unit 10 and other assembly completely cut off with the cold-producing medium of importing, and cold-producing medium be limited in unit 10 chamber 39,390 and they importing pipeline 25,250 and outside pipeline 20,200 in.
Fig. 6 is an interchangeable design, the Packed crankcase of tool and check-valves 105, and wherein check-valves is communicated with crankcase and importing pipeline 25,250 (Fig. 6).Some cold-producing mediums, can not discharged into the atmosphere owing to the leakage that wearing and tearing produce such as piston oil seal.When importing pipeline 25,250 had high vacuum, the replaceable design of the Packed crankcase of this tool and check-valves allowed to leak the cold-producing medium that enters into crankcase by piston oil seal and is drained.Above-mentioned high vacuum occurs in after the system evacuation.When having pressure in the pipeline, check-valves also can stop cold-producing medium to flow into from pipeline 25,250.This design can stop any refrigrant leakage in atmosphere, also allows to discharge from crankcase by the cold-producing medium that piston leaks.The cold-producing medium that is transferred and the material of compressor arrangement are depended in this decision design.
With reference to figure 6 to Figure 10, a kind of driving mechanism for compressor 23 comprises motor 66 (Figure 10), and it is rotated axle 62 with respect to axle R.Motor reel 62 can be a kind of in the very eurypalynous axle (spline, through hole, hexagon are the shapes of some interchangeable axles).Compressor can have the axle of prolongation and can drive by pulley/tape drive, chain drives, coupled driver (coupling drive), gear drive etc.Two bearing bases 61 are suitable for the long design that connects with being connected, and it provides a plurality of driving combinations.Bearing can be dissimilar, roller bearing, ball cover etc.Seal (SR) can be used for pressurized crankcase.
In operation, motor 66 (Figure 10) is with respect to axle R rotary electric arbor 62 and the bent axle 64 that is connected.Transfer the crankpin 43 with respect to axle R rotation diagram 8, the axle RR of crankpin 43 also moves with respect to parallel axle R simultaneously.The crankpin 43 of the rotation among Fig. 9 is received in the sliding part 45 of dog link structure 30 (seeing Fig. 5).Sliding part 45 (Fig. 9) by with respect to yoke parts 29,290 along vertical axis V slidably mobile mode install.Vertical axis V is symmetrically by yoke parts 29,290 centre.Along with motor reel 62 and crankpin 43 rotate with respect to axle R (Fig. 9), crankpin 43 and its axle RR have been offset with respect to the rotation of axle R.
Then the yoke side part among Fig. 4 45 moves up and down with respect to axle V, wherein should be mobile along axle T mobile yoke parts 29,290 reciprocally in turn, the piston rod 28,280 of connection, piston end cap 38,380, piston head 27,270.Described reciprocating motion needs rectilinear motion, so as in reciprocal compression movement operated piston.
(on the direction shown in the Figure 4 and 5) installed and moved up and down to the part 45 of above-described slide mechanism with respect to yoke parts 29,290 along axle T.The motion of piston is along semicircle, and this semicircle extends along each side of axle V.Although the yoke side part 29,290 of vicinity is as shown in Figure 6 bearing large opposite power F, FF that compressed refrigerant produces, and with sliding part 45 and power F, FF isolation, the movement of the crankpin 43 in Fig. 4-6 has still produced sizable power at yoke side part 29,290.For example compressor 23 flows out in the storage tank 12 at the driving cold-producing medium, can produce to be 550psi or larger pressure to the maximum in chamber 39,390.Drive the high pressure that produces between sliding part 45 and the driven yoke side part 29,290 in order to reduce or to be dissipated in, can use a kind of friction resistant technology.A plurality of arrangements of ball 46 (Fig. 6 and 10) for example can be provided.These balls 46 (seeing Fig. 4) are arranged on separately between the inside and outside surface of facing 53,530 (Fig. 5) of paired yoke side part 29,290 and sliding part 45 (seeing Fig. 9 and 10).The insert of the steel part of roller bearing, bronze or sclerosis also can be used for reducing friction.Friction point at dog link can use different technology to reduce friction with high wear point, and the sintered bronze that for example will flood friction resistant material is used for friction point and high wear point; The polymer that flooded friction resistant material is used for friction point and high wear point.
Figure 13 illustrates the embodiment of single piston, this piston basically by with the embodiment of front, the double-piston dog link structure 31 identical dog link structures 78 among Fig. 3 drive.Yet the embodiment among Figure 13 has the crankcase of the sealing that is communicated with the inlet line 17 of Fig. 2, rather than the piston with opposed mutual balance.Provide one to offset power F1 in downside or the bottom 88 of piston head 75 like this.Power F1 provides some and the rightabout reaction of power F along axle T1 really, and it has partly remedied the energy that needs at compression stroke drive piston really.The spring 97 of Figure 13 can as illustratedly be installed, to reduce the needed energy of compression stroke.Energy reduce to be transferred to intake stroke, but the energy pulse that compression needs has reduced, and therefore can use the motor of low horsepower.
Counteracting power F1 can also be produced by spring as explained above, and perhaps pipeline 99 (from pipeline 17) is set to crankcase 78, and it is communicated with the piston face 88 of Figure 13.The pressure of piston head 86 is the same with the pressure of the bottom of piston face 88.During compression stroke, the pressure on the piston face 88 (power F1) helps compression stroke to reduce needed energy.The operation of dog link is the same with above-described embodiment, except only having a piston actuated.
The of the present invention a plurality of embodiment that describe in detail with respect to accompanying drawing have been illustrated in top disclosing.Those skilled in the art can understand and not break away from protection scope of the present invention situation, and setting and other embodiment of change, modification, other structure also are to implement under instruction of the present invention.
Claims (24)
1. refrigerant recovering machine, it is used for cold-producing medium is transferred to another one system or the tank from a system or tank, described recycling machine comprises compressor unit, have two pistons, described piston can slide and be positioned in the cylinder hermetically, one end of each described cylinder is with end cap, the entrance and exit valve is arranged in described end cap, these valves are check valve, at each end cap two or more valves are arranged, piston is connected to rigidly the dog link parts and interconnects, described dog link structure is transformed into rotatablely moving of driver part the reciprocating motion of described yoke parts, piston is along public fixing axle, cylinder has thermal component, this thermal component is vulnerable to the impact of the compulsory convective flow of cooling medium, described recycling machine also comprises for the motor of drive compression machine or air motor, with system, tank, cylinder cover, pipeline and connector that the port fluid of condenser and valve and cold-producing medium is communicated with, described recycling machine has valve, port, pipeline and the connector that is connected with public valve group, described valve group is used for controlling the inlet and outlet of recycling machine inner refrigerant stream, be used in addition assembly fluid with recycling machine and connect in order to make the compressor recycling machine assembly of finding time, form vacuum.
2. recycling machine as claimed in claim 1, comprising the self-contained valve group with three or more rotatable valve, this valve group is used for the fluid of control inlet and outlet, entry deterrence and discharge fluid, and assembly and various refrigerant lines are connected to the suction side of compressor.
3. recycling machine as claimed in claim 2, it has an inside Wind Volume fan that is driven by air compressor motor, is used for all components of cooled enclosure inside.
4. recycling machine as claimed in claim 2, wherein said dog link structure contacts with cold-producing medium.
5. recycling machine as claimed in claim 2, wherein the shell of crankcase is communicated with suction port of compressor side one-way fluid.
6. recycling machine as claimed in claim 2, wherein the pressure of the cold-producing medium in structural housing is higher than atmospheric pressure.
7. recycling machine as claimed in claim 2, wherein the fluid between compressor head and the many valves group is communicated with and realizes in self-contained valve group.
8. recycling machine as claimed in claim 2, wherein the valve group is the part of the whole of compressor cylinder lid.
9. recycling machine as claimed in claim 2, wherein the valve group is for fixing and the structural member of various assemblies is installed.
10. recycling machine as claimed in claim 2, wherein condenser is connected on each cylinder cover.
11. recycling machine as claimed in claim 2, the polymer that wherein will flood friction resistant material is used on the friction point of dog link.
12. recycling machine as claimed in claim 2 has wherein integrated one way stop peturn valve in the valve group, it is installed in the upstream of drain valve and the downstream part of condenser.
13. recycling machine as claimed in claim 2, the sintered bronze that wherein will flood friction resistant material is used on the friction point of dog link.
14. refrigerant recovering machine, be used for cold-producing medium is transferred to another system or tank from a system or tank, described recovery unit comprises for the motor of drive compression machine or air motor, compressor unit has a piston, this piston slides and is positioned in the cylinder hermetically, one end of described cylinder has end cap, the entrance and exit valve is arranged in described end cap, these valves are check valve, at each end cap two or more valves are arranged, piston is connected to rigidly the dog link parts and interconnects, described dog link structure is transformed into rotatablely moving of driver part the reciprocating motion of described yoke parts, spring members reduces the energy of compression stroke along public axle, piston is along public fixing axle, cylinder has thermal component, this thermal component is vulnerable to the impact of the compulsory convective flow of cooling medium, described recycling machine also comprises and system, tank, cylinder cover, pipeline and connector that the port fluid of condenser and valve and cold-producing medium is communicated with, described recycling machine has valve, port, pipeline and the connector that is connected with public valve group, described valve group is used for controlling inflow and the discharge of recycling machine inner refrigerant stream, being used in addition assembly with recycling machine fluidly connects in order to make the compressor recycling machine assembly of finding time, and makes assembly become vacuum.
15. recycling machine as claimed in claim 14, comprising the self-contained valve group with three or more rotatable valve, this valve group is used for the fluid of control inlet and outlet, entry deterrence and discharge fluid and assembly and various refrigerant lines are connected to the suction side of compressor.
16. recycling machine as claimed in claim 15, it has an inside Wind Volume fan that is driven by air compressor motor, is used for all components of cooled enclosure inside.
17. recycling machine as claimed in claim 15, the structure of wherein said dog link contacts with cold-producing medium.
18. recycling machine as claimed in claim 15, wherein the shell of crankcase is communicated with compressor suction side one-way fluid.
19. recycling machine as claimed in claim 15, wherein the pressure of the cold-producing medium in structural housing is higher than atmospheric pressure.
20. recycling machine as claimed in claim 15, wherein the connection of the fluid between compressor head and the many valves group realizes in self-contained valve group.
21. recycling machine as claimed in claim 15, wherein self-contained valve group is the part of the whole of compressor cylinder lid.
22. recycling machine as claimed in claim 15, wherein self-contained valve group is for fixing and install the structural member of various assemblies.
23. recycling machine as claimed in claim 15, wherein condenser is connected on the cylinder cover.
24. recycling machine as claimed in claim 15, wherein with the sintered bronze material soaking in abrasion-resistant material, and be used on the friction point of dog link.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102822420A CN102997524A (en) | 2011-09-16 | 2011-09-16 | Refrigerant recycling machine |
| TW101112400A TW201314151A (en) | 2011-09-16 | 2012-04-09 | Refrigerant recovery machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102822420A CN102997524A (en) | 2011-09-16 | 2011-09-16 | Refrigerant recycling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102997524A true CN102997524A (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102822420A Pending CN102997524A (en) | 2011-09-16 | 2011-09-16 | Refrigerant recycling machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102997524A (en) |
| TW (1) | TW201314151A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245149A (en) * | 2013-05-23 | 2013-08-14 | 重庆耐德能源装备集成有限公司 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
| CN103983057A (en) * | 2014-04-09 | 2014-08-13 | 浙江飞越机电有限公司 | Portable low-leakage refrigerant recycling machine |
| CN108534409A (en) * | 2018-03-24 | 2018-09-14 | 薛静泽 | A kind of air-conditioning refrigerant retracting device |
| US10280918B2 (en) | 2012-12-18 | 2019-05-07 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
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| US4480964A (en) * | 1982-02-25 | 1984-11-06 | General Motors Corporation | Refrigerant compressor lubrication system |
| CN1045160A (en) * | 1988-12-09 | 1990-09-05 | 三电有限公司 | Wobble plate type refrigerant compressor |
| CN1172239A (en) * | 1996-06-21 | 1998-02-04 | 张继科 | Refrigerant overcirculating vapour compression refrigerator system |
| CN101839596A (en) * | 2009-03-20 | 2010-09-22 | 斯必克工业技术研究开发(上海)有限公司 | Filling and recovering device |
-
2011
- 2011-09-16 CN CN2011102822420A patent/CN102997524A/en active Pending
-
2012
- 2012-04-09 TW TW101112400A patent/TW201314151A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480964A (en) * | 1982-02-25 | 1984-11-06 | General Motors Corporation | Refrigerant compressor lubrication system |
| CN1045160A (en) * | 1988-12-09 | 1990-09-05 | 三电有限公司 | Wobble plate type refrigerant compressor |
| CN1172239A (en) * | 1996-06-21 | 1998-02-04 | 张继科 | Refrigerant overcirculating vapour compression refrigerator system |
| CN101839596A (en) * | 2009-03-20 | 2010-09-22 | 斯必克工业技术研究开发(上海)有限公司 | Filling and recovering device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10280918B2 (en) | 2012-12-18 | 2019-05-07 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
| US10352308B2 (en) | 2012-12-18 | 2019-07-16 | Emerson Climate Technologies, Inc. | Reciprocating compressor with vapor injection system |
| CN103245149A (en) * | 2013-05-23 | 2013-08-14 | 重庆耐德能源装备集成有限公司 | Mixed refrigerant circulation liquefied natural gas device and mixed refrigerant recovery device |
| CN103983057A (en) * | 2014-04-09 | 2014-08-13 | 浙江飞越机电有限公司 | Portable low-leakage refrigerant recycling machine |
| CN103983057B (en) * | 2014-04-09 | 2016-06-29 | 浙江飞越机电有限公司 | Portable low leakage of refrigerant recycling machine |
| CN108534409A (en) * | 2018-03-24 | 2018-09-14 | 薛静泽 | A kind of air-conditioning refrigerant retracting device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201314151A (en) | 2013-04-01 |
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Application publication date: 20130327 |