CN107489786A - Slidingtype switching valve and refrigerating circulation system - Google Patents
Slidingtype switching valve and refrigerating circulation system Download PDFInfo
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- CN107489786A CN107489786A CN201710433433.XA CN201710433433A CN107489786A CN 107489786 A CN107489786 A CN 107489786A CN 201710433433 A CN201710433433 A CN 201710433433A CN 107489786 A CN107489786 A CN 107489786A
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- switching valve
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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
- F16K11/0655—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 with flat slides
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F25B13/00—Compression machines, plants or systems, with reversible 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
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
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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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention provides the slidingtype switching valve and refrigerating circulation system of the flow-reduction for the high pressure side liquid that can suppress in refrigerating mode and heating mode.Four-way switching valve (10) possesses the valve body (11) of cylindrical shape and sliding freely located at the valve element (12) of the inside of the valve body (11), the valve member (24) of valve element (12) has bowl portion (25) and flange part (26), be provided with the heavy section (27) on the periphery for being formed at heavy wall shape a bowl portion (25) in flange part (26) and from heavy section (27) towards axial side and opposite side extension and compared with heavy section (27) thinner formation thinner wall section (28).
Description
Technical field
The present invention relates to slidingtype switching valve and refrigerating circulation system.
Background technology
Currently, as the freeze cycle utilized in the air conditioners such as air-conditioning indoors, the circulation side for making refrigerant is utilized
To the freeze cycle of reversion, when refrigerating mode (refrigeration) operates, to make refrigerant via compressor, outdoor heat exchanger, swollen
Swollen valve and indoor heat exchanger and to compressor circulation, and when heating mode (heating) operates, make refrigerant via compression
Machine, indoor heat exchanger, expansion valve and outdoor heat exchanger and to compressor circulation.As such system made in freeze cycle
The flow channel switching valve (so-called, four-way switching valve) of the closed loop flow path reversion of cryogen, the inside for being widely used in valve body possesses and set
For the slidingtype switching valve of valve element that can be slidably.
Such as lower component is provided with the valve body of slidingtype switching valve：It is connected and with the outlet of compressor via D joints
The inflow port for flowing into high-pressure refrigerant；It is connected via S joints with the suction inlet of compressor to make refrigerant to compressor
The outflow port of circulation；The indoor side ports being connected via E joints with indoor heat exchanger；And via C joints and with outdoor
The outdoor side ports of heat exchanger connection.Moreover, slidingtype switching Vavle switching refrigerating mode and heating mode, in the refrigerating mode,
Outflow port is set to be connected with indoor side ports using the valve member for the valve element for sliding into side, and using making stream inside valve body
Inbound port connects with outdoor side ports, in the heating mode, makes outflow port and outdoor using the valve member for sliding into opposite side
Side ports connect, and using making inflow port be connected with indoor side ports inside valve body.
As such slidingtype switching valve, it is proposed that be designed as preventing the cutting during switching of refrigerating mode and heating mode
Change construction that is bad and preventing the machine caused by pressure anomaly rises from stopping (for example, referring to patent document 1).This is special
Existing slidingtype switching valve described in sharp document 1 possesses the plastic valve portion with bowl portion (recess) and flange part
Part (sliding valve core), and the both ends of flange part width pars intermedia formed with cut hole portion.These cut hole portion and existed
Middle position during pattern switching makes inflow port be bypassed with outflow port via indoor side ports and outdoor side ports
Connection, so as to which the pressure for suppressing abnormal rises, and the situation for preventing compressor from stopping.Also, in existing slidingtype switching valve
In, by suitably setting the size of incision hole portion, come the inflow for suppressing to have connected from bypass in the middle position of valve member
Port becomes excessive to the flow of the central fluid of outflow port outflow.By controlling middle flow like this, carry out suppression mode
The reduction of the pressure differential of high-pressure side and low-pressure side during switching, so as to prevent the switching of valve element bad.
Prior art literature
Patent document 1：Japanese Unexamined Patent Publication 62-98872 publications
However, in such existing slidingtype switching valve described in patent document 1, pressure during pattern switching is realized
Power rises and switched extremely bad improvement, but has the flow drop for producing refrigerating mode and the high pressure side liquid in heating mode
Low possibility.That is, as described above, the flange part of valve member extends along glide direction, thus in heating mode, indoor side
A part for mouth is covered by the flange part of side, and in refrigerating mode, a part for outdoor side ports is by the flange of opposite side
Portion covers, so as to which the flow path resistance from inflow port towards indoor side ports, the high pressure side liquid of outdoor side ports increases.
The content of the invention
It is an object of the invention to provide the flow for the high pressure side liquid that can suppress in refrigerating mode and heating mode
The slidingtype switching valve and refrigerating circulation system of reduction.
The present invention slidingtype switching valve be possess the valve body of tubular, slide axially is located at the valve body freely
Internal valve element and the multiple ports for the side face that above-mentioned valve body is located at opening mode, the spy of above-mentioned slidingtype switching valve
Sign is that above-mentioned multiple ports have：Port is flowed into, it makes fluid be flowed into the inside of above-mentioned valve body；First port, its phase
The diametrically opposite side of above-mentioned valve body is located at for the inflow port；Second port, it is located at the above-mentioned axle of above-mentioned first port
To side；And the 3rd port, it is located at the above-mentioned axial opposite side of above-mentioned first port, above-mentioned first port, above-mentioned second
Port, above-mentioned 3rd port openings be located at above-mentioned valve body valve seat, above-mentioned valve element be configured to have by first position with
Moved between the second place to switch the valve member of stream, above-mentioned first position is to slide into above-mentioned axial side and make above-mentioned the
The position that Single port connects with above-mentioned second port, said second position are to slide into above-mentioned axial opposite side and make above-mentioned first
The position that port connects with above-mentioned 3rd port, above-mentioned valve member are formed as the bowl with the dome shape towards above-mentioned valve seat opening
The flange part that portion and opening edge from this bowl of portion extend outward, is provided with above-mentioned flange part：Flat sliding contact surface, its
With above-mentioned valve seat sliding contact；Heavy section, it is formed at the periphery in above-mentioned bowl portion with heavy wall shape；And thinner wall section, it is from the thickness
Wall portion extends towards above-mentioned axial side and opposite side, and compared with the heavy section, it is opposite with above-mentioned sliding contact surface
Surface side is formed as thinner.
According to such present invention, by the flange part of valve member formed extend to axial side and opposite side it is thin
Wall portion, the upper surface side (surface side opposite with sliding contact surface) of thinner wall section can be enabled flow through.Therefore, though flange part to
Axially the side of (glide direction) and opposite side extend and cover second port and a part for the 3rd port, also easily
Ground makes the fluid after the upper surface side by thinner wall section be flowed towards second port, the 3rd port, so as to suppress high-pressure side
Fluid flow-reduction.
Now, be preferably, in the surface side opposite with above-mentioned sliding contact surface of above-mentioned flange part, above-mentioned heavy section with it is upper
State and step is provided between thinner wall section, or be provided with and tilt from above-mentioned heavy section towards above-mentioned thinner wall section.
According to the structure, by setting step from heavy section towards thinner wall section, tilting, the stream for preventing fluid can be difficult to
It is dynamic, so as to reduce the flow path resistance of on high-tension side fluid.
Additionally, it is preferred that it is, in the surface side opposite with above-mentioned sliding contact surface of above-mentioned flange part, at the end of above-mentioned thinner wall section
Edge is provided with chamfered section.
According to the structure, chamfered section is set by the ora terminalis in thinner wall section, can be smooth towards second port, the 3rd port
The fluid for the upper surface side that ground guiding passes through thinner wall section, so as to further reduce the flow path resistance of on high-tension side fluid.
Also, be preferably, the above-mentioned axial length dimension of above-mentioned flange part be formed as than above-mentioned second port and on
Distance is big between stating the outer most edge of the 3rd port, and two ora terminalis in the above-mentioned axial side of the flange part and opposite side are formed
Have towards the recessed recess in above-mentioned bowl portion, when interposition of the above-mentioned valve element between above-mentioned first position and said second position
When putting, the recess of above-mentioned axial side connects with above-mentioned second port, and the recess of above-mentioned axial opposite side and the above-mentioned 3rd
Port connects.
According to the structure, the length dimension of flange part is formed as than distance between second port and the outer most edge of the 3rd port
Greatly, and in two ora terminalis of the axial side of flange part and opposite side formed with recess, the centre position in pattern switching,
The recess of side connects with second port, and the recess of opposite side connects with the 3rd port, so as to prevent that pattern switching is bad
And pressure anomaly rises.
The refrigerating circulation system of the present invention is characterised by possessing：Compression to being compressed as the refrigerant of fluid
Machine；The First Heat Exchanger of function is played as condenser in refrigerating mode；In refrigerating mode function is played as evaporator
The second heat exchanger；Refrigerant is set to expand the expansion to be depressurized between above-mentioned First Heat Exchanger and above-mentioned second heat exchanger
Mechanism；And the slidingtype switching valve described in any one of scheme 1~4.
According to such refrigerating circulation system of the invention, when refrigerating mode operates and when heating mode operates, with
It is above-mentioned identical, the flow-reduction of the on high-tension side refrigerant in slidingtype switching valve can be suppressed.Followed therefore, it is possible to improve freezing
The running efficiency of ring, so as to realize the raising of energy consumption efficiency.
The effect of invention is as follows.
According to the slidingtype switching valve and refrigerating circulation system of the present invention, refrigerating mode and heating mode can be suppressed
In on high-tension side flow-reduction.
Brief description of the drawings
Fig. 1 is the brief configuration figure of the freeze cycle of an embodiment of the invention.
Fig. 2 is the sectional view for the slidingtype switching valve for showing first embodiment used in above-mentioned freeze cycle.
Fig. 3 is the stereogram for showing valve member used in above-mentioned slidingtype switching valve.
Fig. 4 is the sectional view for the flowing for showing the fluid in above-mentioned slidingtype switching valve.
Fig. 5 is the sectional view for the flowing for showing the fluid in above-mentioned slidingtype switching valve, is to regarding shown in V-V lines in Fig. 4
Sectional view.
Fig. 6 is the sectional view for the slidingtype switching valve for showing second embodiment used in above-mentioned freeze cycle.
Fig. 7 is the stereogram for showing valve member used in above-mentioned slidingtype switching valve.
Fig. 8 is the sectional view for the flowing for showing the fluid in above-mentioned slidingtype switching valve.
Fig. 9 is the sectional view for the flowing for showing the fluid in above-mentioned slidingtype switching valve, is to regarding IX-IX lines institute in Fig. 8
The sectional view shown.
Figure 10 is the top view for the pattern switching state for showing above-mentioned slidingtype switching valve.
Figure 11 is the sectional view of a part for the slidingtype switching valve for enlargedly showing the variation of the present invention.
Figure 12 is the sectional view of a part for the slidingtype switching valve for enlargedly showing other variations of the present invention.
In figure：
1-freeze cycle, 2-compressor, 3-outdoor heat exchanger (First Heat Exchanger), (second changes 4-indoor heat exchanger
Hot device), 5-expansion valve (expansion mechanism), 10-four-way switching valve (slidingtype switching valve), 11-valve body, 11A-inflow end
Mouthful, 11B-first port, the port of 11C-second port, 11D the-the 3rd, 12-valve element, 19-valve seat, 24,24A, 24B,
24C-valve member, 25-bowl portion, 26-flange part, 26A-sliding contact surface, 27-heavy section, 28-thinner wall section, 28A,
28B-chamfered section, 29-stage portion (step), 30-recess, 31-rake (inclination).
Embodiment
Next, embodiments of the present invention are illustrated referring to the drawings.The freeze cycle 1 of present embodiment is used for room
The air conditioners such as interior air-conditioning, possess the compressor 2 being compressed to refrigerant, function is played with condenser in refrigerating mode
As the outdoor heat exchanger 3 of First Heat Exchanger, in refrigerating mode using evaporator play function as the second heat exchanger
Indoor heat exchanger 4, the conduct expanding machine for making refrigerant expand to be depressurized between outdoor heat exchanger 3 and indoor heat exchanger 4
The expansion valve 5 of structure, the four-way switching valve 10 as slidingtype switching valve and the stream to four-way switching valve 10 switch over control
The pilot solenoid valve 6 of system, they are linked by refrigerant piping.In addition, as expansion mechanism, expansion valve 5 is not limited to,
It can be capillary.
The freeze cycle 1 forms refrigerant successively to compressor 2, four-way switching valve in heating mode (heating operation)
10th, the heating circulation that indoor heat exchanger 4, expansion valve 5, outdoor heat exchanger 3, four-way switching valve 10 and compressor 2 flow.It is another
Aspect, refrigerant is formed in the refrigerating mode (cooling operation) shown in Fig. 1 successively to compressor 2, four-way switching valve 10, outdoor
The kind of refrigeration cycle that heat exchanger 3, expansion valve 5, indoor heat exchanger 4, four-way switching valve 10 and compressor 2 flow.The heating circulates
Switching with kind of refrigeration cycle is carried out by the switching action based on the four-way switching valve 10 obtained by pilot solenoid valve 6.
The four-way switching valve of the first embodiment of the present invention is illustrated based on Fig. 2~Fig. 5.As shown in Fig. 2 first
The four-way switching valve 10 of embodiment is configured to possess：Cylindric valve body 11；Sliding freely located at the valve body 11
Internal valve element 12；The high-pressure side conduit (D joints) 13 connected with the outlet of compressor 2；Connected with the suction inlet of compressor 2
Low-pressure side conduit (S joints) 14；The indoor conduit (E joints) 15 connected with indoor heat exchanger 4；And and outdoor heat exchanger
The outside conduit (C joints) 16 of 3 connections.
Cylindric valve body 11 has the cock body 17,18 for blocking its axial both ends and is fixed on valve body 11
Internal valve seat 19, is formed as the cylinder barrel being integrally closed.It is connected in cock body 17,18 and connects with pilot solenoid valve 6
Logical conduit 17A, 18A.Before valve seat 19 is inserted with low-pressure side conduit 14, indoor conduit 15 and outside conduit 16
End, and provided with the opening for forming the first~the 3rd port 11B, 11C, 11D described later.The inner surface of valve seat 19 turns into valve element
12 carry out the guide surface 19A of sliding guidance.
In valve body 11, formed with multiple port 11A, 11B, 11C, 11D in its side face opening.That is, it is provided with and high pressure
Side conduit 13 connects and makes the inflow port 11A of inside inflows of the high-pressure refrigerant H (fluid) to valve body 11, relative to inflow
Port 11A valve body 11 diametrically opposite side opening in the first port 11B, second port 11C and the 3rd end of valve seat 19
Mouth 11D.First port 11B is in a manner of opposed with flowing into port 11A located at the approximately axially central of valve body 11, second port
Axial directions of the 11C along valve body 11 and be adjacent to located at first port 11B side (Fig. 2 left side), the 3rd port 11D is along valve master
The opposite side (Fig. 2 right side) for being axially located at first port 11B of body 11.
By first port 11B connection low-pressure sides conduit 14 and make low pressure refrigerant L (fluid) flow out, come make this first
Port 11B forms outflow port.By in second port 11C junction chambers inner conduit 15, to make second port 11C form room
Interior side port, and by the 3rd port 11D junction chambers outer conduit 16, to make the 3rd port 11D form outdoor side
Mouthful.High-pressure side conduit 13 is fixed on the valve body 11 on inflow port 11A peripheries, low-pressure side conduit 14, interior by solder brazing
Side conduit 15 and outside conduit 16 are fixed on the first~the 3rd port 11B, 11C, 11D periphery by solder brazing respectively
Valve body 11 and valve seat 19.
Valve element 12 is configured to have：With the pair of right and left piston body 21,22 of the inner peripheral surface sliding contact of valve body 11；Link
A pair of pistons body 21,22 and along the axially extending connecting member 23 of valve body 11；And it is supported in the valve portion of connecting member 23
Part 24.The inner space of valve body 11 is separated into：The hyperbaric chamber R1 being formed between a pair of pistons body 21,22；It is formed at one
The first operating room R2 between piston body 21 and cock body 17；And be formed between another piston body 22 and cock body 18 second
Operating room R3.
Connecting member 23 is made up of sheet metal, formed with：Along the axially extending of valve body 11 and it is set to and valve seat 19
Link plate portion 23A parallel guide surface 19A；The side end bending for linking plate portion 23A is fixed on to the fixation of piston body 21
Piece portion 23B；And the end side bending for linking plate portion 23A is fixed on to the stator portion 23C of piston body 22.Linking
Through holes of the plate portion 23A formed with the retaining hole 23D kept to valve member 24 and two positions for making refrigerant circulation
23E。
Valve member 24 is plastic integral part, also as shown in Fig. 3~Fig. 5, is formed as having towards valve
The bowl portion 25 that seat 19 is open concavely and the flange part 26 that the opening edge from this bowl of portion 25 extends outward.Bowing in bowl portion 25
Optionally be formed as the dome shape with oblong shape down, be inserted in the retaining hole 23D of connecting member 23.In bowl portion 25
Portion, connected formed with first port 11B is made with second port 11C without connecting the 3rd port 11D or making first port
11B is connected with the 3rd port 11D without connected space R4 as making second port 11C connections.
The profile in the case of vertical view of flange part 26 is formed as rectangle, has the guide surface 19A sliding contacts with valve seat 19
Flat sliding contact surface 26A, and sliding contact surface 26A formed with the continuous opening edge 26B of the inner surface in bowl portion 25.
Also, it is provided with flange part 26：The heavy section 27 on the periphery in bowl portion 25 is formed in heavy wall shape；From the heavy section 27 to axial direction
The thinner wall section 28 that side and opposite side are formed extended at both sides；And it will in step-like be connected between heavy section 27 and thinner wall section 28
Stage portion 29.
Heavy section 27, which is located at, to be linked between plate portion 23A and the guide surface 19A of valve seat 19, and across micro gap and with connecting
The link plate portion 23A of knot part 23 is opposite disposed.Herein, in the normal state, sliding contact surface 26A is because hyperbaric chamber R1 is with connecting
Space R4 pressure differential and be in close contact with guide surface 19A, will not float so as to valve member 24.But four-way switching valve 10 with
The side of high-pressure side conduit 13 mode directed downwardly is set, and in pattern switching, pressure differential diminishes, and in this case can not say no valve member
24 possibilities floated from guide surface 19A, even under such circumstances, company is connected to also by the upper surface of heavy section 27
Knot tying portion 23A limits the movement of valve member 24, so as to which sliding contact surface 26A is not over needing away from guide surface 19A.By
This, though act on the pressure differential of valve member 24, the fluid for acting on valve member 24 flowing caused by power it is small, valve member
24 sliding contact surface 26A is also easily close to guide surface 19A again.
For thinner wall section 28 compared with heavy section 27, the surface side opposite with sliding contact surface 26A is formed as thinner, in the thinner wall section
Formed with the gap S bigger than the gap at heavy section 27 between 28 and link plate portion 23A.Also, at three ends of thinner wall section 28
Edge and the surface side opposite with sliding contact surface 26A be provided with arc-shaped chamfered section 28A.Stage portion 29 by with sliding contact surface
The vertical guide structure that 26A, heavy section 27 and thinner wall section 28 upper surface (face opposite with sliding contact surface 26A) are substantially orthogonal
Into, and be formed as under overlooking with the periphery in bowl portion 25 substantially with the arc-shaped in footpath.
In four-way switching valve 10 more than, if being imported via pilot solenoid valve 6 and conduit 18A to the second operating room R3
High-pressure refrigerant, then as shown in Fig. 2 piston body 22 is pressed and valve element 12 is to the axial side (Fig. 2 left side) of valve body 11
Slide.On the other hand, if importing what is ejected from compressor 2 to the first operating room R2 via pilot solenoid valve 6 and conduit 17A
High-pressure refrigerant H, then piston body 21 is pressed and valve element 12 slides to the axial opposite side (Fig. 2 right side) of valve body 11.This
Place, will slide into the position (position shown in Fig. 2) of the valve element 12 of the axial side of valve body 11 as first position, and will be sliding
The position to the valve element 12 of the axial opposite side of valve body 11 is moved as the second place.
In the state that valve element 12 is in first position, as shown in Fig. 2 the bowl portion 25 of valve member 24 utilizes its connected space
R4 makes first port 11B be connected with second port 11C.Also, more lean on side, institute than the 3rd port 11D because bowl portion 25 is located at
Connected with the 3rd port 11D via the inside (hyperbaric chamber R1) of valve body 11 with flowing into port 11A.That is, valve element 12 is in
As flowing into, port 11A is connected the state of first position with the 3rd port 11D and first port 11B connects with second port 11C
Refrigerating mode (cooling operation).
Also, in the state of valve element 12 is in the second place, the bowl portion 25 of valve member 24 is made using its connected space R4
First port 11B connects with the 3rd port 11D.Also, opposite side is more leaned on than second port 11C because bowl portion 25 is located at, so
Second port 11C connects via the inside (hyperbaric chamber R1) of valve body 11 and with flowing into port 11A.That is, valve element 12 is in the
The state of two positions, which turns into, flows into that port 11A connects with second port 11C and first port 11B connects with the 3rd port 11D
Heating mode (heating operation).
In refrigerating mode as more than (or heating mode), as also shown in Figure 4, the flange part of valve member 24 26
In a part of overlapping with the 3rd port 11D (or second port 11C).Therefore, flow into hyperbaric chamber R1's from inflow port 11A
It is in high-pressure refrigerant H, by a part of the high-pressure refrigerant H after the through hole 23E of connecting member 23 because flange part 26 and
Flow hindered, but as shown in figure 5, the seam linked between plate portion 23A and thinner wall section 28 is flowed into around connecting member 23
Gap S high-pressure refrigerant H flows towards the 3rd port 11D (or second port 11C).Also, flow into gap S high-pressure refrigeration
Upper surface flowings of the agent H along thinner wall section 28, successfully guided to the 3rd port 11D (or the second ends by chamfered section 28A
Mouth 11C).
Present embodiment more than, thinner wall section 28 is formed by the flange part 26 in valve member 24, to make high compacting
Gap S between upper surface side and link plate portion 23A that cryogen H passes through thinner wall section 28, so as to which high-pressure refrigerant H is drawn
It is directed at second port 11C, the 3rd port 11D.Therefore, even if axially-extending of the flange part 26 along valve body 11 and to the second end
Mouth 11C, a 3rd port 11D part are covered, and can also make the high-pressure refrigeration after the upper surface side by thinner wall section 28
Agent H easily flows towards second port 11C, the 3rd port 11D, so as to suppress high-pressure refrigerant H flow-reduction.
Also, by setting stage portion 29 between the heavy section 27 of valve member 24 and thinner wall section 28, it can be ensured that gap S
And it is difficult to the flowing for hindering high-pressure refrigerant H, so as to reduce high-pressure refrigerant H flow path resistance.In addition, by thin-walled
The ora terminalis in portion 28 sets chamfered section 28A, can successfully guide towards second port 11C, the 3rd port 11D and pass through thinner wall section
The high-pressure refrigerant H of 28 upper surface side, so as to further reduce high-pressure refrigerant H flow path resistance.
As noted previously, as the flow-reduction of the high-pressure refrigerant H in four-way switching valve 10 can be suppressed, so freezing
During the refrigerating mode operating of circulation 1 and when heating mode operates, it is possible to increase running efficiency, so as to realize energy consumption efficiency
Raising.
Next, the four-way switching valve of second embodiment of the present invention is illustrated based on Fig. 6~Figure 10.This implementation
The four-way switching valve 10 of mode is compared with the valve member 24 of first embodiment, in terms of possessing variform valve member 24A
Difference, other structures are same or similar with first embodiment.Hereinafter, it is pair different from first embodiment in detail to click through
Go and illustrate, sometimes pair structure same or similar with first embodiment mark same-sign and omission or schematic illustration.
In the four-way switching valve 10 of present embodiment, as shown in Figure 6, Figure 7, formed in valve member 24A flange part 26
Have recess 30, the recess 30 from two ora terminalis of the axial side of valve body 11 and opposite side towards bowl portion 25 semicircular arcly
It is recessed.In these recesses 30 and in the surface side opposite with sliding contact surface 26A, the chamfered section 30A provided with arc-shaped.
According to the valve member 24A with such recess 30, also as shown in Figure 8, Figure 9, flowed around connecting member 23
Enter to link the high-pressure refrigerant H of the gap S between plate portion 23A and thinner wall section 28 towards the 3rd port 11D (or second ports
11C) flow, and the high-pressure refrigerant H after the through hole 23E for passing through connecting member 23 is point-blank by recess 30 and to the
Three port 11D (or second port 11C) flow.Also, flow into upper surfaces of the gap S high-pressure refrigerant H along thinner wall section 28
Flowing, is successfully guided to the 3rd port 11D (or second port 11C) using the chamfered section 30A of recess 30.
Also, as shown in Figure 10, valve member 24A is set as corresponding big with the first~the 3rd port 11B, 11C, 11D
Small and shape.That is, the first~the 3rd port 11B, 11C, 11D is equally spaced, relative to second port 11C and
Distance (length dimension L1) between three port 11D outer most edge, the axial length dimension L2 settings of valve member 24A flange part 26
For than length dimension L1 greatly (L1 ＜ L2).Also, the depth dimensions L3 of recess 30 is set as, from the length dimension L2 of flange part 26
Subtract length (L2-2L3) (the L1 ＞ L2- smaller than length dimension L1 after the depth dimensions L3 (2L3) of the recess 30 of two ora terminalis
2L3)。
Therefore, as shown in Figure 10 (A), in the first position of refrigerating mode (or second place of heating mode), i.e.,
Flange part 26 is covered the 3rd port 11D (or second port 11C) part, can also be expanded using recess 30 the
The high-pressure refrigerant H at three port 11D (or second port 11C) places flow path area.Also, as shown in Figure 10 (B), work as valve
During centre positions of the part 24A between first position and the second place, the recess 30 of side connects with second port 11C,
And the recess 30 of opposite side connects with the 3rd port 11D.So, hyperbaric chamber R1 and connected space R4 is via recess 30, second
Port 11C and the 3rd port 11D and connect, the part for thus producing high-pressure refrigerant H flows to first port 11B
Between flow.Herein, will not become too much and high-pressure refrigerant H and low pressure refrigerant L pressure differential with middle flow will not diminish
Mode set the size (depth dimensions L3) of recess 30.
Also, as shown in Figure 10 (C), from first position to the second place (or from second place to first position)
Mobile midway, if valve member 24A is moved to the position slightly offset from centre position, the recess 30 and second port of a side
11C (or the 3rd port 11D) is connected, and the recess 30 of the opposing party does not connect with the 3rd port 11D (or second port 11C).
Now, because the area of the interconnecting part of a side's recess 30 and second port 11C (or the 3rd port 11D) becomes big, so middle
Flow becomes maximum, even in this case, high-pressure refrigerant H and low pressure refrigerant L pressure differential will not also diminish, with such as
Upper such mode sets the length dimension L2 of the flange part 26 and depth dimensions L3 of recess 30.
According to more than present embodiment, the centre position in pattern switching, be formed at flange part 26 left and right it is recessed
Portion 30 connects with second port 11C and the 3rd port 11D, thus compares second port even in the length dimension L2 of flange part 26
In the case that distance (length dimension L1) is big between 11C and the 3rd port 11D outer most edge, middle flow will not also become zero,
So as to prevent pressure anomaly from rising.Further, since too much and high-pressure refrigerant H and low pressure will not be become with middle flow
The mode that refrigerant L pressure differential will not diminish sets the size of recess 30, so being able to ensure that pressure differential and preventing pattern
Switch bad.
Also, it is identical with above-mentioned first embodiment, thinner wall section 28, energy are formed by the flange part 26 in valve member 24A
Enough suppress high-pressure refrigerant H flow-reduction, and by forming recess 30 in valve member 24A, can make to pass through connecting member
High-pressure refrigerant H after 23 through hole 23E point-blank flows to the 3rd port 11D (or second port 11C), so as to
Further suppress high-pressure refrigerant H flow-reduction.It is in addition, by using the chamfered section 30A of recess 30 that high-pressure refrigerant H is suitable
Guide sharply to the 3rd port 11D (or second port 11C), can further reduce high-pressure refrigerant H flow path resistance.
In addition, the present invention is not limited to above-mentioned embodiment, including the other structures of the purpose of the present invention can be realized
Deng of the invention also to include such deformation as shown below etc..For example, in the above-described embodiment, enumerate the air such as room conditioning
The example of the freeze cycle 1 that conditioner is utilized represents, but the freeze cycle of the present invention is not limited to air conditioner, if
It is the equipment for switching heating mode and refrigerating mode, then can be utilized in arbitrary equipment.Also, the slidingtype switching of the present invention
Valve is not limited to utilize in the switching valve in freeze cycle, can also make each of the various fluid circulations such as gas, liquid
Utilized in kind piping system.
Also, it is in connect step-likely that in the above-described embodiment, valve member 24,24A flange part 26, which are formed as having,
Stage portion 29 between heavy section 27 and thinner wall section 28, but it is not limited to the shape shown in this or Figure 11.That is, exist
In valve member 24B shown in Figure 11, flange part 26 is configured to have from heavy section 27 towards the inclined rake 31 of thinner wall section 28.
Using such rake 31, the high-pressure refrigerant H that can also make inflow link the gap S between plate portion 23A and flange part 26
Flowed along rake 31 towards the 3rd port 11D (or second port 11C).
Also, in the above-described embodiment, in valve member 24, ora terminalis the falling formed with arc-shaped of 24A thinner wall section 28
Corner 28A, but it is not limited to the shape shown in this or Figure 12.That is, in the valve member 24C shown in Figure 12, thin
Chamfered section 28B of the ora terminalis of wall portion 28 formed with inclined plane type., also can be towards second port using such chamfered section 28B
11C, the 3rd port 11D successfully guide the high-pressure refrigerant H for the upper surface side for having passed through thinner wall section 28, so as to reduce height
Compression refrigerant H flow path resistance.
Also, in the above-described 2nd embodiment, the length dimension L2 of valve member 24A flange part 26 is set as than second
Between port 11C and the 3rd port 11D outer most edge distance (length dimension L1) greatly, but the length ruler of the flange part in the present invention
It is very little can also between second port and the outer most edge of the 3rd port distance it is equal, can also be than second port and the 3rd port
Outer most edge between distance it is small, can suitably set the length dimension of flange part.
Also, in the above-described 2nd embodiment, flange part 26 two ora terminalis formed with recess 30, but recess is not
It is required, can suitably it omit, and the shape of recess also can be selected arbitrarily.That is, as recess, be not limited to as
Above-mentioned second embodiment is like that towards the semicircular arc ground recessed recess 30 or in quadrangle, triangle in bowl portion 25
Recessed recess or the ora terminalis along flange part are in the recess formed in a zigzag to shape etc. polygon-shapedly, and also may be used
With the recess for being the ora terminalis integrally bending of flange part and being formed.
More than, embodiments of the present invention are illustrated in detail referring to the drawings, but specific structure does not limit
In these embodiments, the present invention is also included within design alteration in the range of the purport for not departing from the present invention etc..
Claims (5)
1. a kind of slidingtype switching valve, possess the valve body of tubular, slide axially freely located at the inside of the valve body
Valve element and with opening mode located at multiple ports of the side face of above-mentioned valve body, above-mentioned slidingtype switching valve is characterised by,
Above-mentioned multiple ports have：Port is flowed into, it makes fluid be flowed into the inside of above-mentioned valve body；First port, its is relative
The diametrically opposite side of above-mentioned valve body is located in the inflow port；Second port, it is located at the above-mentioned axial direction of above-mentioned first port
Side；And the 3rd port, it is located at the above-mentioned axial opposite side of above-mentioned first port,
The valve seat of above-mentioned first port, above-mentioned second port, above-mentioned 3rd port with opening mode located at above-mentioned valve body,
Above-mentioned valve element is configured to have switches the valve member of stream by moving between the first location and the second location, above-mentioned
First position is the position for sliding into above-mentioned axial side and making above-mentioned first port be connected with above-mentioned second port, above-mentioned second
Position is the position for sliding into above-mentioned axial opposite side and making above-mentioned first port be connected with above-mentioned 3rd port,
Above-mentioned valve member is formed as the bowl portion with the dome shape towards above-mentioned valve seat opening and the opening edge from this bowl of portion is outside
Fang Yanshen flange part,
It is provided with above-mentioned flange part：Flat sliding contact surface, itself and above-mentioned valve seat sliding contact；Heavy section, it is with heavy wall shape
It is formed at the periphery in above-mentioned bowl portion；And thinner wall section, it extends from the heavy section to above-mentioned axial side and opposite side, and
Compared with the heavy section, the surface side opposite with above-mentioned sliding contact surface is formed as thinner.
2. slidingtype switching valve according to claim 1, it is characterised in that
In the surface side opposite with above-mentioned sliding contact surface of above-mentioned flange part, it is provided between above-mentioned heavy section and above-mentioned thinner wall section
Step, or be provided with and tilt from above-mentioned heavy section towards above-mentioned thinner wall section.
3. slidingtype switching valve according to claim 1 or 2, it is characterised in that
In the surface side opposite with above-mentioned sliding contact surface of above-mentioned flange part, chamfered section is provided with the ora terminalis of above-mentioned thinner wall section.
4. according to the slidingtype switching valve described in any one of claims 1 to 3, it is characterised in that
The above-mentioned axial length dimension of above-mentioned flange part is formed as the outermost than above-mentioned second port and above-mentioned 3rd port
Intermarginal distance is big, and in two ora terminalis of the above-mentioned axial side of the flange part and opposite side formed with recessed towards above-mentioned bowl portion
Under recess,
When centre position of the above-mentioned valve element between above-mentioned first position and said second position, above-mentioned axial side it is recessed
Portion connects with above-mentioned second port, and the recess of above-mentioned axial opposite side connects with above-mentioned 3rd port.
5. a kind of refrigerating circulation system, it is characterised in that possess：
To the compressor being compressed as the refrigerant of fluid；Play function as condenser in refrigerating mode first is changed
Hot device；The second heat exchanger of function is played as evaporator in refrigerating mode；Make refrigerant above-mentioned First Heat Exchanger with it is upper
The expansion mechanism for stating expansion between the second heat exchanger to be depressurized；And the slidingtype described in any one of Claims 1 to 4
Switching valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016117284A JP6476152B2 (en) | 2016-06-13 | 2016-06-13 | Sliding switching valve and refrigeration cycle system |
| JP2016-117284 | 2016-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107489786A true CN107489786A (en) | 2017-12-19 |
| CN107489786B CN107489786B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710433433.XA Active CN107489786B (en) | 2016-06-13 | 2017-06-09 | Slidingtype switching valve and refrigerating circulation system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6476152B2 (en) |
| CN (1) | CN107489786B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056675A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
| CN110056674A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
| CN110081201A (en) * | 2018-01-25 | 2019-08-02 | 株式会社不二工机 | Flow channel switching valve and valve base part for flow channel switching valve |
| CN112585384A (en) * | 2018-08-23 | 2021-03-30 | 株式会社不二工机 | Flow path switching valve |
| CN112585385A (en) * | 2018-08-23 | 2021-03-30 | 株式会社不二工机 | Flow path switching valve |
| CN112815566A (en) * | 2019-10-31 | 2021-05-18 | 浙江三花智能控制股份有限公司 | Electromagnetic switching valve and heat pump system with same |
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| US9359243B2 (en) | 2014-05-13 | 2016-06-07 | Corning Incorporated | Transparent glass-ceramic articles, glass-ceramic precursor glasses and methods for forming the same |
| JP6979705B2 (en) * | 2019-05-07 | 2021-12-15 | 株式会社不二工機 | Flow switching valve |
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| CN110056675A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
| CN110056674A (en) * | 2018-01-19 | 2019-07-26 | 株式会社鹭宫制作所 | Slidingtype switching valve and the refrigerating circulation system for having the slidingtype switching valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2017223249A (en) | 2017-12-21 |
| CN107489786B (en) | 2019-11-05 |
| JP6476152B2 (en) | 2019-02-27 |
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