CN107355563A - Reversal valve and there is its refrigeration system - Google Patents
Reversal valve and there is its refrigeration system Download PDFInfo
- Publication number
- CN107355563A CN107355563A CN201610305102.3A CN201610305102A CN107355563A CN 107355563 A CN107355563 A CN 107355563A CN 201610305102 A CN201610305102 A CN 201610305102A CN 107355563 A CN107355563 A CN 107355563A
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- Prior art keywords
- valve
- element portion
- port
- base
- reversal
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/048—Electromagnetically actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
Abstract
The invention provides a kind of reversal valve and there is its refrigeration system, wherein reversal valve includes：Valve body, the valve seat being arranged in valve body, valve seat include upper valve base and lower valve base, and the first and second valve port is provided with upper valve base, the 3rd and the 4th valve port is set on lower valve base；Sliding valve core, with inner passage, sliding valve core is arranged in valve pocket and between upper valve base and lower valve base, sliding valve core includes the first and second valve element portion, and the first valve element portion coordinates with upper valve base, and the second valve element portion coordinates with lower valve base, sliding valve core has the first and second positions, when sliding valve core is located at first position, first is connected with the 4th valve port by inner passage, and second is connected with the 3rd valve port by valve pocket；When sliding valve core is located at the second place, second is connected with the 4th valve port by inner passage, and first is connected with the 3rd valve port by valve pocket.Technical scheme can be effectively reduced refrigerant and flow through caused pressure loss during reversal valve.
Description
Technical field
The present invention relates to refrigerating field, in particular to a kind of reversal valve and has its refrigeration system.
Background technology
Current air-conditioning system, refrigeration and the translation function of heating are realized using four-way reversing valve.Four-way valve of the prior art
It is generally divided into two classes.One kind is traditional four-way valve, and another kind of is plunger type electromagnetic valve.It is described in detail below in the prior art
Two class reversal valves.
Prior art one：Traditional four-way valve.As shown in figure 1, reversal valve includes main valve 100 and pilot valve 200.The cunning of main valve 100
Movable valve plug 104 is arranged in valve pocket 107, and sliding valve core 104 abuts valve seat 105 and makees relative slide.Adapter 106c, adapter 106s
It is welded on valve seat 105 with adapter 106e and is connected with chamber 107, adapter 106d is welded on valve body and connected with chamber 107.
Adapter 106d connects with the air outlet of compressor 110, and adapter 106s connects with the suction port of compressor 110, adapter 106e
Connected with indoor heat converter 140, adapter 106c connects with outdoor heat converter 120.So, inside by main valve 100
Piston element 101 and connecting rod 103 drive sliding valve core 104 to be slided relative to valve seat 105 together, so as to realize refrigeration and heating
Switching between two kinds of working conditions.The negotiability of four-way reversing valve inner chamber depend primarily on low-pressure side runner (high-pressure side because
Fluid pressure is larger, and has enough negotiabilities).When system needs to switch to refrigeration work state, piston element 101
Sliding valve core 104 is driven to slide into left side together with connecting rod 103, the piston element 101 of left end abuts with the end cap 108 of left end,
Adapter 106e is connected (low-pressure side) with adapter 106s, and adapter 106d is connected (high-pressure side) with adapter 106c.Now internal system
Refrigerant circulation path be：110 → adapter of compressor 106d → adapter 106c → 120 → restricting element of outdoor heat converter 130
140 → adapter of → indoor heat converter 106e → adapter 106s → compressor 110.When refrigerant is (low from 106e into adapter 106s
Press side) when, the flow direction of the refrigerant has turned 180 °, and said structure make it that pressure loss when refrigerant flows through four-way valve is larger.
When system needs to switch to heating working condition, sliding valve core 104 slides into right side, the piston element 101 and right-hand member of right-hand member
End cap abut, adapter 106c connects (low-pressure side) with adapter 106s, and adapter 106d connects (high-pressure side) with adapter 106e,
Refrigerant circulation path now is：110 → adapter of compressor 106d → adapter 106e → 140 → restricting element of indoor heat converter
130 → outdoor heat converter, 120 → adapter 106c → adapter 106s → compressor 110.When refrigerant enters adapter 106s from 106c
When (low-pressure side), the flow direction of the refrigerant has equally turned 180 °, and said structure is again such that the pressure loss of refrigerant is larger.
Prior art two：Plunger type electromagnetic valve.As shown in Fig. 2 special character of the plunger type electromagnetic valve relative to traditional four-way valve
It is to add a plunger assembly between two in main valve chamber pistons, secondly end keeps dynamic close by sealing ring 10 with valve body 1
Envelope, plunger tube 14 is interior to form a passage, and another passage is formed between plunger tube 14 and valve body 1.Adapter E, adapter C are with connecing
Pipe S, adapter D split two sides, and adapter S and adapter C, adapter E are respectively communicated with by the passage between plunger tube 14 and valve body 1,
Adapter D is then connected by valve pocket or the inner chamber of plunger tube 14 respectively with adapter C, adapter E.Thus adapter E → adapter S or
Adapter C → adapter S stream need not turn to and keep oblique straight-through, so as to reduce the pressure loss therebetween.But post present in it
Filling in pipe 14 still can convection body generation disturbing influence；In the handoff procedure of left and right, sealing ring 10 is needed by adapter C, adapter E
The mouth of pipe, there must be certain compression after coordinating due to it with valve body 1 to keep sealing, when it passes through the interrupted breach at the mouth of pipe
When, the change that distending shrinks again will be locally produced, so constantly breathing change, influence whether the durable reliability of sealing ring；
Moreover, said structure needs two sealing rings in itself, frictional force is will result in naturally greatly and then have impact on its commutation ability；In addition
Because valve body is light-wall pipe, is making and ovality deformation can be produced in subsequent welding process, therefore and having influence on sealing ring 10
Sealing effectiveness, for ensure sealing just need increase sealing ring 10 pre- compression deformation, so again can increase frictional force and influence it and change
To performance.
The content of the invention
It is a primary object of the present invention to provide a kind of reversal valve and there is its refrigeration system, to solve in prior art reversal valve
Refrigerant pressure loss it is larger the problem of.
To achieve these goals, according to an aspect of the invention, there is provided a kind of reversal valve, including：Valve with valve pocket
Body, is provided with valve seat in valve pocket, and valve seat includes the upper valve base and lower valve base being oppositely arranged, is provided with upper valve base along valve body
Axial arranged the first valve port and the second valve port, axial arranged the 3rd valve port and the 4th along valve body is provided with lower valve base
Valve port；Sliding valve core, has inner passage, and sliding valve core is arranged in valve pocket and between upper valve base and lower valve base, slided
Valve element includes mutually nested the first valve element portion and the second valve element portion, and the first valve element portion coordinates with upper valve base, the second valve element portion with
Lower valve base coordinates, wherein, sliding valve core has first position and the second place, when sliding valve core is located at first position, first
Valve port and the 4th valve port are connected by inner passage, and the second valve port is connected with the 3rd valve port by valve pocket；When sliding valve core is positioned at the
During two positions, the second valve port and the 4th valve port are connected by inner passage, and the first valve port is connected with the 3rd valve port by valve pocket.
Further, sealing is provided between the first valve element portion and the second valve element portion, is sealed so that inner passage is formed with valve pocket.
Further, annular receiving space is formed between the first valve element portion and the second valve element portion, sealing is contained in annular and accommodates sky
In.
Further, annular step is provided with the inwall in the first valve element portion, sealing is arranged on the step surface of annular step
Place.
Further, the second valve element portion includes being located in the neck of the first valve core interior and the expansion section below neck,
The size of the one end of expansion section away from neck is more than the size of neck.
Further, the falling stop portion coordinated with the bottom in the first valve element portion is provided with the outer wall of expansion section.
Further, it is provided with flow blocking structure in the second valve element portion.
Further, flow blocking structure is flow blocking bar, and the both ends of flow blocking bar are arranged on the inwall in the second valve element portion, and flow blocking bar is set
In the second valve element portion close to one end of lower valve base.
Further, reversal valve also includes：Multiple connecting tubes, multiple connecting tubes include connect with the first valve port E adapter, and
C adapters, the D connection connected with the 3rd valve port and the S adapters connected with the 4th valve port of second valve port connection.
Further, the first valve element portion seals cooperation between one end of upper valve base and upper valve base, and the second valve element portion is close to lower valve
Seal and coordinate between one end of seat and lower valve base.
Further, the second valve element portion has the first preset distance between one end of upper valve base and upper valve base.
Further, annular flange is provided with the inwall in the first valve element portion, the bottom surface of annular flange is with the second valve element portion close to upper
There is the second preset distance between one end of valve seat.
According to another aspect of the present invention, there is provided a kind of refrigeration system, including compressor, first heat exchanger, the second heat are handed over
The choke valve and reversal valve of parallel operation, connection first heat exchanger and second heat exchanger, reversal valve is above-mentioned reversal valve, pressure
The entrance point of contracting machine connects with the 4th valve port of reversal valve, and the port of export of compressor connects with the 3rd valve port of reversal valve, the first heat
Exchanger connects with the second valve port of reversal valve, and second heat exchanger connects with the first valve port of reversal valve.
Apply the technical scheme of the present invention, there is the upper valve base and lower valve base being oppositely arranged in valve body, first is provided with upper valve base
Valve port and the second valve port, the 3rd valve port and the 4th valve port are provided with lower valve base.Cunning is provided between upper valve base and lower valve base
Movable valve plug, when sliding valve core is located at first position, the first valve port and the 4th valve port are connected by inner passage, the second valve port with
3rd valve port is connected by valve pocket.Because the first valve port and the 4th valve port are respectively positioned at the upper valve base being oppositely arranged in said structure
On lower valve base, therefore the refrigerant entered from the first valve port need to only deflect less angle and without intermediate barrier, you can from the
Four valve ports flow out, and so as to reduce the pressure loss of refrigerant, and then cause the reversal valve of the present invention relative to similar sizes specification
Reversal valve for there is bigger negotiability.Similarly, when sliding valve core is located at the second place, the second valve port and the 4th valve
Mouth is connected by inner passage, and the first valve port is connected with the 3rd valve port by valve pocket.Due to the second valve port and in said structure
Four valve ports respectively on the upper valve base and lower valve base that are oppositely arranged, therefore the refrigerant entered from the second valve port need to only deflect it is smaller
Angle and without intermediate barrier, you can flowed out from the 4th valve port, so as to reduce the pressure loss of refrigerant, and then cause this
The reversal valve of invention has bigger negotiability for the reversal valve of similar sizes specification.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the structural representation of the refrigeration system in prior art one；
Fig. 2 shows the structural representation of the reversal valve of the refrigeration system in prior art two；
Fig. 3 shows the structural representation of the embodiment one of the refrigeration system according to the present invention；
Fig. 4 shows the vertical profile structural representation of the reversal valve of Fig. 3 refrigeration system；
Fig. 5 shows the vertical profile structural representation of another angle of Fig. 4 reversal valve；
Fig. 6 shows the vertical profile structural representation of the valve body of Fig. 4 reversal valve；
Fig. 7 shows the vertical profile structural representation of another angle of Fig. 6 valve body；
Fig. 8 shows the vertical profile structural representation of the upper valve base of Fig. 4 reversal valve；
Fig. 9 shows the vertical profile structural representation of another angle of Fig. 8 upper valve base；
Figure 10 shows the vertical profile structural representation of the lower valve base of Fig. 4 reversal valve；
Figure 11 shows the vertical profile structural representation of another angle of Figure 10 lower valve base；
Figure 12 shows the vertical profile structural representation in the second valve element portion of Fig. 4 reversal valve；
Figure 13 shows the vertical profile structural representation in the first valve element portion of Fig. 4 reversal valve；
Figure 14 shows the vertical profile structural representation of another angle in Figure 13 the first valve element portion；
Figure 15 shows the vertical profile structural representation of the connecting rod of Fig. 4 reversal valve；
Figure 16 shows the vertical profile structural representation of another angle of Figure 15 connecting rod；
Figure 17 shows the partial enlargement vertical profile structural representation of Fig. 4 reversal valve；
Figure 18 shows the vertical profile structural representation in the second valve element portion of the embodiment two of the reversal valve according to the present invention；
Figure 19 shows the vertical profile structural representation of another angle in Figure 18 the second valve element portion；
Figure 20 shows the partial structural diagram of the embodiment three of the reversal valve according to the present invention；
Figure 21 shows the vertical profile structural representation in the first valve element portion of Figure 20 reversal valve；And
Figure 22 shows the vertical profile structural representation of another angle in Figure 21 the first valve element portion.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
1st, compressor；2nd, choke valve；3rd, first heat exchanger；4th, second heat exchanger；20th, valve body；31st, upper valve base；
311st, the first valve port；312nd, the second valve port；32nd, lower valve base；321st, the 3rd valve port；322nd, the 4th valve port；41st, the first valve
Core；411st, annular flange；42nd, the second valve element portion；421st, neck；422nd, expansion section；4221st, falling stop portion；423rd, every
Flow bar；51st, E takes over；52nd, C takes over；53rd, D connection；54th, S takes over；60th, sealing；70th, connecting rod.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 3 to 5, the reversal valve of embodiment one includes valve body 20 and sliding valve core with valve pocket.Wherein, exist
Valve seat is provided with valve pocket, valve seat includes the upper valve base 31 and lower valve base 32 being oppositely arranged, is provided with upper valve base 31 along valve body
20 axial arranged the first valve port 311 and the second valve port 312, it is provided with along the axial arranged of valve body 20 on lower valve base 32
3rd valve port 321 and the 4th valve port 322；Sliding valve core, has inner passage, and sliding valve core is arranged in valve pocket and positioned at upper
Between valve seat 31 and lower valve base 32, sliding valve core includes mutually nested the first valve element portion 41 and the second valve element portion 42, and first
Valve element portion 41 coordinates with upper valve base 31, and the second valve element portion 42 coordinates with lower valve base 32, wherein, sliding valve core has first
Put and the second place, when sliding valve core is located at first position, the first valve port 311 is connected with the 4th valve port 322 by inner passage,
Second valve port 312 is connected with the 3rd valve port 321 by valve pocket；When sliding valve core is located at the second place, the He of the second valve port 312
4th valve port 322 is connected by inner passage, and the first valve port 311 is connected with the 3rd valve port 321 by valve pocket.
The technical scheme of Application Example one, valve body 20 is interior to have the upper valve base 31 and lower valve base 32 being oppositely arranged, upper valve base 31
On be provided with the first valve port 311 and the second valve port 312, be provided with the 3rd valve port 321 and the 4th valve port 322 on lower valve base 32.
Sliding valve core is provided between upper valve base 31 and lower valve base 32, when sliding valve core is located at first position, the first valve port 311 and
Four valve ports 322 are connected by inner passage, and the second valve port 312 is connected with the 3rd valve port 321 by valve pocket.In said structure
Because the first valve port 311 and the 4th valve port 322 are respectively on the upper valve base 31 and lower valve base 32 that are oppositely arranged, therefore from first
The refrigerant that valve port 311 enters need to only deflect less angle and without intermediate barrier, you can flowed out from the 4th valve port 322, so as to
The pressure loss of refrigerant is reduced, and then the reversal valve of the present embodiment is had for the reversal valve of similar sizes specification
There is bigger negotiability.Similarly, when sliding valve core is located at the second place, the second valve port 312 and the 4th valve port 322 pass through
Inner passage is connected, and the first valve port 311 is connected with the 3rd valve port 321 by valve pocket.Due to the second valve port 312 in said structure
It is located at respectively on the upper valve base 31 and lower valve base 32 being oppositely arranged with the 4th valve port 322, therefore enter from the second valve port 312
Refrigerant need to only deflect less angle and without intermediate barrier, you can be flowed out from the 4th valve port 322, so as to reduce refrigerant
The pressure loss, and then enable the present invention reversal valve there is bigger circulation for the reversal valve of similar sizes specification
Power.In addition, in actual production, the planar processing precision of the sliding sealing surface of upper valve base 31 and lower valve base 32 is more easy to be protected
Card, therefore sliding valve core also becomes more readily available guarantee with the sealing that upper valve base 31 and lower valve base 32 are engaged.
Preferably, upper valve base 31 and lower valve base 32 are parallel construction, and said structure can ensure between sliding valve core and valve seat
Sealing.
Preferably, in embodiment one, the commutation of reversal valve is realized by the switching control of electromagnetic system, shift motion and
One valve port 311, the spacing of the second valve port 312 are consistent substantially.
Preferably, as shown in Figure 6 and Figure 7, in embodiment one, respectively there are two through holes upper and lower two side of valve body 20.Processing
When, fabricated part is obtained by processing methods such as car, brill, punchings using tubing.
Preferably, as shown in Fig. 8 to 11, in embodiment one, two steps is respectively provided with upper valve base 31 and lower valve base 32 and are led to
Hole.During processing, fabricated part is obtained using D-shaped bar or forging, casting blank, then by processing methods such as car, brills.Upper valve base
31 and first the face that coordinates of valve element portion 41 according to the difference of its material, attrition process can be used before weldering or in postwelding wire pulling method again
Technology mode, to ensure its surface quality.The face that the valve element portion 42 of lower valve base 32 and second coordinates according to the difference of its material,
Attrition process or the technology mode in postwelding wire pulling method again before weldering can be used, to ensure its surface quality.Because valve seat is thicker
The D shaped cross section and its length of reality are also less big, even if using attrition process before weldering, there will not be influence fit quality after welding
Deformation.
Preferably, in embodiment one, the first valve element portion 41 and the second valve element portion 42 are using macromolecule materials such as nylon or PPS
Material, passes through injection molded.The face that first valve element portion 41 coordinates with upper valve base 31 is again by machining, to ensure its flatness
And surface roughness, so as to ensure dynamic sealing and have less friction of motion resistance.Second valve element portion 42 coordinates with lower valve base 32
Face again by machining, to ensure its flatness and surface roughness, so as to ensure dynamic sealing and have less friction of motion
Resistance.
It should be noted that similar to prior art, the sealing and lower valve base 32 between upper valve base 31 and sliding valve core are with sliding
Sealing between movable valve plug is ensured by the pressure differential in high-low pressure section.Frictional force is also big when pressure differential is big, but same switching is dynamic
Power is also big；Pressure differential small i.e. switching power hour, frictional force is also small.
As shown in Figures 3 to 5, in embodiment one, sealing is provided between the first valve element portion 41 and the second valve element portion 42
60, to seal the first valve element portion 41 and the second valve element portion 42.Said structure ensure that the first valve element portion 41 and the second valve element portion 42
Between sealing.
As shown in Fig. 3 to Fig. 5, Figure 13 and Figure 14, in embodiment one, annular is provided with the inwall in the first valve element portion 41
Stage portion, sealing 60 are arranged at the step surface of annular step.Specifically, the first valve element portion 41 includes the first valve element master
Body and the first annular lug boss extended in the first valve element main body and towards lower valve base 32, the inwall of first annular lug boss
Ledge structure is formed between the bottom surface of the first valve element main body, sealing 60 is preferably sealing ring, and sealing ring is arranged on above-mentioned step
At structure.Because the relative position between the first valve element portion 41 and the second valve element portion 42 that are nested together is substantially solid
Fixed, therefore sealing 60 is static seal.In commutation process, it seals mated condition and will not changed significantly, i.e., does not deposit
Change in the breathing caused by structure, so as to ensure that the durable reliability of sealing ring.Also therefore sealing 60 need to set it is required
Sealing deflection, without increasing the excessive pre- compression deformation of sealing ring it is ensured that sealing effectiveness, so as to ensure that commutation
Valve has good commutation ability.
It should be noted that being provided with annular step on the inwall in the first valve element portion 41, said structure easily facilitates injection molding.
As shown in Fig. 4, Figure 12 and Figure 17, in embodiment one, the second valve element portion 42 includes being located in the first valve element portion 41
The neck 421 in portion and the expansion section 422 below neck 421, the size of the one end of expansion section 422 away from neck 421 are big
In the size of neck 421.Said structure causes the process that the second valve element portion 42 moves back and forth between the first location and the second location
In, the lower end of expansion section 422 can be located at the 4th valve port 322 all the time, so as to ensure that the first valve port 311 or the second valve
Mouth 312 can be connected with the 4th valve port 322.It should be noted that neck 421 is preferably basic with adapter E, adapter C
Identical shape and latus rectum.Expansion section is arranged to kidney-shaped, and width and the adapter S latus rectums of the bottom of expansion section are consistent substantially,
The length of the bottom of expansion section is consistent substantially with " adapter S latus rectum adds the stroke in the second valve element portion 42 ".
As shown in figure 12, in embodiment one, it is provided with the outer wall of expansion section 422 and coordinates with the bottom in the first valve element portion 41
Falling stop portion 4221.Preferably, above-mentioned falling stop portion 4221 is ramp structure.Said structure serves position-limiting action, it is therefore prevented that close
Seal is deviate from ledge structure, so as to further ensure the sealing between the first valve element portion 41 and the second valve element portion 42.
Certainly, those skilled in the art are set to ramp structure it is to be understood that above-mentioned falling stop portion 4221 differs, can also be close for that can prevent
The ledge structure that seal is deviate from ledge structure.
As shown in figs. 4 and 17, in embodiment one, the first valve element portion 41 is close to one end of upper valve base 31 and upper valve base 31
Between seal and coordinate, i.e. the first valve element portion 41 forms dynamic sealing pair with upper valve base 31.Second valve element portion 42 is close to lower valve base 32
One end and lower valve base 32 between seal and coordinate, i.e. the second valve element portion 42 forms dynamic sealing pair with lower valve base 32, and said structure is protected
The sealing between sliding valve core and valve seat is demonstrate,proved.In addition, the second valve element portion 42 is close to one end of upper valve base 31 and upper valve base 31
Between there is the first preset distance L1, above-mentioned distance is more than or equal to 0.05mm, preferably above-mentioned first preset distance L1 be 0.05
To between 1.5mm.In the second valve element portion 42 in moving process, said structure can prevent the upper end in the second valve element portion 42 with
Upper valve base 31 produces friction, so as to reduce the second valve element portion 42 resistance suffered in moving process.
As shown in Figure 3 and Figure 4, in embodiment one, reversal valve also includes：Multiple connecting tubes, multiple connecting tubes include and the
The E adapters 51 of one valve port 311 connection, the C adapters 52 connected with the second valve port 312, the D connected with the 3rd valve port 321
Adapter 53 and the S adapters 54 connected with the 4th valve port 322.Preferably, above-mentioned E adapters 51, C adapters 52, D connection
It is parallel to each other between 53 and S adapters 54.Said structure further such that low pressure stream does not turn to, and only deviates from a distance,
So as to reduce the pressure loss of refrigerant.
Preferably, the axis of S adapters 54 is located between the axis of E adapters 51 and the axis of C adapters 52.Said structure causes
For sliding valve core at first position and the second place, its low-pressure side stream keeps identical.
Preferably, multiple connecting tubes are by being welded to connect on valve body 20.
As shown in Fig. 4, Figure 15 and Figure 16, reversal valve also includes being used for the driving part for driving sliding valve core to move.The drive division
Part includes connecting rod 70 and piston.Second valve element portion 42 is inlaid in the tie rod holes of connecting rod 70, and connecting rod 70 passes through screw with piston
Connection, they can horizontally slip on valve body 20, valve seat together.During processing, shaped using plate through punching.
As shown in Figure 18 and Figure 19, the difference of the reversal valve of embodiment two and embodiment one is the specific knot in the second valve element portion 42
Structure.Specifically, in embodiment two, flow blocking structure is provided with the second valve element portion 42.Said structure reduces the second valve element portion
Influenceed caused by flow dead fluid flow in 42.
As shown in Figure 18 and Figure 19, in embodiment two, flow blocking structure is flow blocking bar 423, and the both ends of flow blocking bar 423 are arranged on
On the inwall of second valve element portion 42, flow blocking bar 423 is arranged on the second valve element portion close to one end of lower valve base 32.Said structure is simple,
It is easy to process.
As shown in Figure 20 to Figure 22, the reversal valve of embodiment three is the specific knot in the first valve element portion 41 with the difference of embodiment one
Structure.Specifically, in embodiment three, the first valve element portion 41 seals cooperation between one end of upper valve base 31 and upper valve base 31,
Annular flange 411 is provided with the inwall in the first valve element portion 41, the bottom surface of annular flange 411 is with the second valve element portion 42 close to upper valve
There is the second preset distance L2 between one end of seat 31, the second valve element portion 42 close to one end of lower valve base 32 and lower valve base 32 it
Between seal coordinate.Above-mentioned second preset distance L2 is more than or equal to 0.05mm, and preferably above-mentioned preset distance L2 is 0.05 to 1.5mm
Between.
Present invention also provides a kind of refrigeration system, as shown in figure 3, including compressor 1, first according to the refrigeration system of the application
Heat exchanger 3, second heat exchanger 4, the choke valve 2 and reversal valve of connection first heat exchanger 3 and second heat exchanger 4,
Wherein reversal valve is above-mentioned reversal valve.The entrance point of compressor 1 connects with the 4th valve port 322 of reversal valve, compressor 1
The port of export connects with the 3rd valve port 321 of reversal valve, and first heat exchanger 3 connects with the second valve port 312 of reversal valve, and second
Heat exchanger 4 connects with the first valve port 311 of reversal valve.Because above-mentioned reversal valve has the advantages of reducing refrigerant pressure loss,
Therefore the refrigeration system with above-mentioned reversal valve is also with above-mentioned advantage.The energy of refrigeration system is enabled to using above-mentioned reversal valve
Effect increases.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made, etc.
With replacement, improvement etc., should be included in the scope of the protection.
Claims (13)
- A kind of 1. reversal valve, it is characterised in that including：Valve body (20) with valve pocket, is provided with valve seat in the valve pocket, and the valve seat includes the upper valve being oppositely arranged Seat (31) and lower valve base (32), it is provided with along the axial arranged of the valve body (20) on the upper valve base (31) First valve port (311) and the second valve port (312), it is provided with along the valve body (20) on the lower valve base (32) Axial arranged the 3rd valve port (321) and the 4th valve port (322)；Sliding valve core, has an inner passage, the sliding valve core be arranged in valve pocket and positioned at the upper valve base (31) and Between the lower valve base (32), the sliding valve core includes the first mutually nested valve element portion (41) and the second valve element Portion (42), the first valve element portion (41) and the upper valve base (31) coordinate, the second valve element portion (42) with The lower valve base (32) coordinates,Wherein, the sliding valve core has first position and the second place, when the sliding valve core is located at the first position When, first valve port (311) is connected with the 4th valve port (322) by the inner passage, second valve Mouth (312) is connected with the 3rd valve port (321) by the valve pocket；When the sliding valve core is located at the second When putting, second valve port (312) is connected with the 4th valve port (322) by the inner passage, and described first Valve port (311) is connected with the 3rd valve port (321) by the valve pocket.
- 2. reversal valve according to claim 1, it is characterised in that the first valve element portion (41) and the second valve element portion (42) sealing (60) is provided between, is sealed so that the inner passage is formed with the valve pocket.
- 3. reversal valve according to claim 2, it is characterised in that the first valve element portion (41) and the second valve element portion (42) annular receiving space is formed between, the sealing (60) is contained in the annular receiving space.
- 4. reversal valve according to claim 3, it is characterised in that be provided with ring on the inwall of the first valve element portion (41) Shape stage portion, the sealing (60) are arranged at the step surface of the annular step.
- 5. reversal valve according to claim 1, it is characterised in that the second valve element portion (42) includes being located in described the The internal neck (421) in one valve element portion (41) and the expansion section (422) below the neck (421), institute The size for stating the one end of expansion section (422) away from the neck (421) is more than the size of the neck (421).
- 6. reversal valve according to claim 5, it is characterised in that be provided with the outer wall of the expansion section (422) with it is described The falling stop portion (4221) that the bottom in the first valve element portion (41) coordinates.
- 7. reversal valve according to claim 1, it is characterised in that be provided with flow blocking structure in the second valve element portion (42).
- 8. reversal valve according to claim 7, it is characterised in that the flow blocking structure is flow blocking bar (423), the flow blocking The both ends of bar (423) are arranged on the inwall of the second valve element portion (42), and the flow blocking bar (423) is arranged on institute The second valve element portion (42) is stated close to one end of the lower valve base (32).
- 9. according to the reversal valve in claim 1, it is characterised in that the reversal valve also includes：Multiple connecting tubes, it is the multiple Connecting tube includes the E that connect with first valve port (311) and takes over (51), connected with second valve port (312) C adapters (52), the D connection (53) that is connected with the 3rd valve port (321) and with the 4th valve port (322) The S adapters (54) of connection.
- 10. reversal valve according to any one of claim 1 to 9, it is characterised in that the first valve element portion (41) is close Seal and coordinate between one end of the upper valve base (31) and the upper valve base (31), the second valve element portion (42) is leaned on Seal and coordinate between one end of the nearly lower valve base (32) and the lower valve base (32).
- 11. reversal valve according to claim 10, it is characterised in that the second valve element portion (42) is close to the upper valve base (31) One end and the upper valve base (31) between there is the first preset distance.
- 12. reversal valve according to claim 10, it is characterised in that be provided with ring on the inwall of the first valve element portion (41) Shape flange (411), the bottom surface of the annular flange (411) is with the second valve element portion (42) close to the upper valve base (31) One end between there is the second preset distance.
- 13. a kind of refrigeration system, including compressor (1), first heat exchanger (3), second heat exchanger (4), connection described the One heat exchanger (3) and the choke valve (2) of second heat exchanger (4), it is characterised in that the refrigeration system is also wrapped Include the reversal valve any one of claim 1 to 12, entrance point and the reversal valve of the compressor (1) 4th valve port (322) connects, and the port of export of the compressor (1) connects with the 3rd valve port (321) of the reversal valve, The first heat exchanger (3) connects with the second valve port (312) of the reversal valve, the second heat exchanger (4) Connected with the first valve port (311) of the reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305102.3A CN107355563B (en) | 2016-05-09 | 2016-05-09 | Reversal valve and refrigeration system with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305102.3A CN107355563B (en) | 2016-05-09 | 2016-05-09 | Reversal valve and refrigeration system with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107355563A true CN107355563A (en) | 2017-11-17 |
| CN107355563B CN107355563B (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610305102.3A Active CN107355563B (en) | 2016-05-09 | 2016-05-09 | Reversal valve and refrigeration system with it |
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| CN110500506A (en) * | 2019-08-12 | 2019-11-26 | 江苏新美星包装机械股份有限公司 | A kind of impeller pump transfer pipeline |
| CN110529444A (en) * | 2018-05-23 | 2019-12-03 | 浙江三花制冷集团有限公司 | A kind of reversal valve and the refrigeration system using the reversal valve |
| CN111120690A (en) * | 2018-10-31 | 2020-05-08 | 广东美芝精密制造有限公司 | Four-way valve |
| CN112413174A (en) * | 2019-08-23 | 2021-02-26 | 株式会社不二工机 | Flow path switching valve |
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| CN112413174B (en) * | 2019-08-23 | 2023-12-08 | 株式会社不二工机 | Flow path switching valve |
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|---|---|
| CN107355563B (en) | 2019-09-20 |
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Effective date of registration: 20220824 Address after: 312500 Daming new area, economic development zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: 312500 xialiquan village, Qixing street, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |