CN110173569A - Flow control valve and refrigerating circulation system - Google Patents
Flow control valve and refrigerating circulation system Download PDFInfo
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- CN110173569A CN110173569A CN201910093591.4A CN201910093591A CN110173569A CN 110173569 A CN110173569 A CN 110173569A CN 201910093591 A CN201910093591 A CN 201910093591A CN 110173569 A CN110173569 A CN 110173569A
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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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
- F16K27/02—Construction of housing; Use of materials therefor of lift 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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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
- F25B1/00—Compression machines, plants or systems with non-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
- F25B41/30—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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Details Of Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The present invention provides flow control valve and refrigerating circulation system, improves operating efficiency when installation pipe fitting, rectification part and valve body.Flow control valve has: the shell of the first opening and the second opening equipped with the inflow entrance or outflux that become fluid；Set on the inside of shell and the spool of the opening area between adjusting and valve seat；The first pipe fitting for being open and being connected to valve seat set on first；And set on the second opening and the second pipe fitting for connect with the inside of shell, at least one pipe fitting of the first pipe fitting and the second pipe fitting has stage portion in inside, in stage portion equipped with the rectification part rectified to the fluid for flowing through at least one pipe fitting.
Description
Technical field
The present invention relates to flow control valve and refrigerating circulation systems.
Background technique
All the time, there is known following motor-driven valves: the generation of flow noise when in order to inhibit refrigerant to pass through valve chamber, and
Insertion is equipped with the throttle mechanism of the cup-shaped of multiple apertures in pipe (for example, referring to patent document 1).
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2007-107623 bulletin
Summary of the invention
Problems to be solved by the invention
However, needing in order to which the throttle mechanism of cup-shaped to be clamped between lower pipe connection and valve body through soldering, riveting
Three components of installation are fetched, the poor problem of operating efficiency during fabrication is deposited.
Solution for solving the problem
(1) first scheme according to the present invention, provides a kind of flow control valve, which is characterized in that have: shell is set
Have as the inflow entrance of fluid or the first opening of outflux and the second opening；Spool is set to the inside of above-mentioned shell,
And adjust the opening area between valve seat；First pipe fitting is set to above-mentioned first opening, and is connected to above-mentioned valve seat；With
And second pipe fitting, it is set to above-mentioned second opening, and connect with the inside of above-mentioned shell, above-mentioned first pipe fitting and above-mentioned
The pipe fitting of at least one of the second pipe fitting has stage portion in inside, is equipped in above-mentioned stage portion to flowing through above-mentioned at least one
The rectification part that the fluid of a pipe fitting is rectified.
(2) alternative plan according to the present invention provides a kind of refrigerating circulation system, which is characterized in that have: first scheme
Flow control valve that is, expansion valve；Make the evaporator of above-mentioned fluid gasification；The pressure that above-mentioned fluid after gasification is compressed
Contracting machine；And make the condenser of compressed above-mentioned fluid liquefaction.
The effect of invention
According to the present invention, at least one pipe fitting of the first pipe fitting and the second pipe fitting has and rectifies to fluid
Rectification part, therefore number of components when being installed on shell can be reduced, improve operating efficiency.
Detailed description of the invention
Fig. 1 is the figure for indicating the outline of the structure of flow control valve of first embodiment of the invention.
Fig. 2 be indicate the first rectification part of flow control valve set on first embodiment, the second rectification part it is outer
The figure for the example seen.
Fig. 3 is the refrigerant circuit for indicating to make the refrigerating circulation system of flow control valve expansion valve of present embodiment
Concept map.
Fig. 4 is the figure for indicating an example of appearance for the first rectification part in variation, the second rectification part.
Fig. 5 is the figure for indicating an example of appearance for the first rectification part in variation, the second rectification part.
Fig. 6 is the figure for indicating an example of appearance for the first rectification part in variation, the second rectification part.
Fig. 7 is the figure for indicating the outline of the structure of flow control valve of second embodiment.
In figure:
1-flow control valve, 2,22-horizontal joints, 3,32-lower contacts, 4-evaporators (indoor heat exchanger), 5-compressions
Machine, 6-condensers (outdoor heat exchanger), 10-spools, 20-valve seats, the 21-the first rectification part, the 37-the second rectification part,
90-valve bodies, the 91-the first opening, the 92-the second opening, 201,221-first part regions, 202,222-second parts
Region, 210-main parts, 211-through holes, 223-Part III regions, 301,321-first part regions, 302,
322-second part regions, 310-main parts, 311-through holes, 323-Part III regions, 500-refrigerating cycle systems
System, 501,502,503,504-refrigerant passages, 901-valve chambers.
Specific embodiment
First embodiment-
First embodiment of the invention is illustrated using FIG. 1 to FIG. 3.
Fig. 1 is the figure for indicating the outline of the structure of flow control valve 1 of first embodiment of the invention.In addition, in order to
Convenient for explanation, the coordinate system being made of X-axis, Y-axis, Z axis is respectively set as side in the up and down direction of Fig. 1, table as illustrated
To, left and right directions.Flow control valve 1 includes with valve seat 20 and accommodates the valve body 90 of valve member 55 and spool 10；Along axial
Drive the valve shaft 30 of spool 10；Inhibit the inclined valve shaft bracket 40 of valve shaft 30；And make valve shaft 30 along the extension side of valve shaft 30
The rotor 70 mobile to (X-direction, the up and down direction of Fig. 1).
Valve member 55 has valve spring 50, spring base 51 and is welded with the valve guide part 60 of spool 10 in end.In valve shaft
At least part region of the circumferential surface of 30 centre positioned at both ends is formed with external screw thread 31.Valve shaft bracket 40 and valve shaft
The region of at least one party on the opposed surface of 30 circumferential surface is formed with internal screw thread 41.Receiving is formed in the inside of valve shaft bracket 40
The valve guide part accommodating chamber 45 of valve guide part 60.Screw thread is formed by the external screw thread 31 of valve shaft 30 and the internal screw thread 41 of valve shaft bracket 40
Feed mechanism 35.
Valve member 55, spool 10, valve shaft 30, valve shaft bracket 40 and rotor 70 are contained in shell 80 and valve body 90.
In the present embodiment, valve body 90 be formed with the shell of valve chamber 901 for accommodating spool 10 in inside, such as pass through by
Stainless steel etc. carries out punch process, machining etc. and manufactures.Be formed in valve body 90: being connect with aftermentioned lower contact 3 and
As the inflow entrance of fluid or the first opening 91 of outflux；And the stream of fluid is connect and become with aftermentioned horizontal joint 2
Second opening 92 of entrance or outflux.Valve guide part 60 is directed to valve shaft bracket with valve shaft 30 via valve spring 50 together
40 valve guide part accommodating chamber 45.When valve guide part accommodating chamber 45 is moved as spool 10 along the extending direction of above-mentioned valve shaft 30
Guide part function.
In the flow control valve 1 of Fig. 1, stepper motor is constituted by rotor 70 and the stator 71 set on the outside of shell 80.
If the stepper motor is driven, valve shaft 30 extends along direction movement with the rotation of rotor 70, passes through the movement, spool 10
Extending direction with valve guide part 60 together along valve shaft 30 moves.The moving direction of the spool 10 includes: spool 10 and valve seat 20
The increased first movement direction of separating distance (the upper direction of X-axis+direction, Fig. 1)；And the separation of spool 10 and valve seat 20 away from
The second moving direction (the lower direction of X-axis-direction, Fig. 1) from reduction.
In addition, present embodiment is not limited to the motor-driven valve for making spool 10 mobile by the driving of stepper motor,
Can be through solenoidal driving the solenoid valve for keeping spool 10 mobile, both can use the separation of spool 10 and valve seat 20 away from
Keep spool 10 mobile from the pressure type changed according to pressure, it can also be to make spool 10 mobile manually.
The state that spool 10 is connected to valve seat 20 is known as closed valve state.In the closed valve state, flow path is blocked, and fluid is not
It is flowed out from valve body 90.At this point, the separating distance of spool 10 and valve seat 20 is zero or generally zero.Spool under closed valve state
10 is mobile to above-mentioned first movement direction, thus become spool 10 lift off a seat 20 state.The state is known as valve opening shape
First movement direction is known as valve opening position by state.If become valve opening state, between spool 10 and valve seat 20 generate gap and
Form flow path.If forming flow path, fluid is flowed out from valve body 90.I.e., spool 10 adjusts the opening area between valve seat 20.
The horizontal joint 2 with the first rectification part 21 and the lower contact 3 with the second rectification part 37 are connected in valve body 90.In valve opening
Under state, fluid is flowed into from a connector in horizontal joint 2 and lower contact 3 and is flowed out to another connector.In addition, for cross
Connector 2, lower contact 3, the first rectification part 21 and the second rectification part 37, will be in being described in detail hereinafter.
If the spool 10 under valve opening state is to above-mentioned the second moving direction movement and to reduce spool 10 and valve seat 20
Separating distance, then flow path narrows.If spool 10 is connected to valve seat 20 and becomes closed valve state soon, flow path is blocked, fluid
It will not be flowed out from valve body 90.Therefore, the second moving direction is known as valve closing direction.
Hereinafter, to horizontal joint 2, lower contact 3, the first rectification part 21 and the second rectification part 37 in present embodiment
It is illustrated.Firstly, carrying out the explanation of horizontal joint 2 and the first rectification part 21.
Horizontal joint 2 is the pipe fitting with the small outer diameter of the opening diameter than the second opening 92, and the second opening 92 of insertion passes through
Soldering etc. is installed on valve body 90.I.e., horizontal joint 2 via second opening 92 and the valve chamber with the inside for being formed in valve body 90
901 connections.Horizontal joint 2 has the first part region 201 when being installed on the second opening 92 near the second opening 92
And the second part region for connecting with first part region 201 and extending to the direction (Z axis+direction) for leaving the second opening 92
202。
In first part region 201 and second part region 202, radial thickness is mutually different.First part region 201
Radial thickness (wall thickness) than second part region 202 radial thickness (wall thickness) greatly, i.e., first part region 201 is interior
Diameter is smaller than the internal diameter in second part region 202.The horizontal joint 2 having configuration which can be by carrying out such as plasticity to wire rod
Processing, machining and formed.Form the stage portion 203 in first part region 201 and second part region 202.Fig. 1 is as one
A example shows following situations: with stage portion 203 in the Z-axis direction positioned at the outer surface (Z axis+side face) of valve body 90
Nearby, the mode near the i.e. second opening 92 is formed with horizontal joint 2.In addition, stage portion 203 the position of Z-direction not
It is limited to example shown in Fig. 1, either near Z axis-side end of horizontal joint 2, being also possible to outside than valve body 90
Z axis+side is leaned on surface.
It is equipped with the first rectification part 21 in stage portion 203, such as fixed by being brazed, riveting etc..I.e., the first rectification part
21 are configured at the boundary in first part region 201 Yu second part region 202.It is opened as described above, stage portion 203 is formed in second
Near mouth 92, thus the first rectification part 21 is set near the second opening 92.Alternatively the first rectification part 21 is set to
The inside of horizontal joint 2.
Fig. 2 is the outside drawing for indicating an example of shape for the first rectification part 21.(a) of Fig. 2 is the first rectification part
(b) of the stereoscopic figure of part 21, Fig. 2 is the top view of X/Y plane.First rectification part 21 is by the disk-shaped of thin plate
Main part 210 is equipped with multiple through holes 211 and is formed.First part area of the diameter of disk-shaped main part 210 than horizontal joint 2
The internal diameter in domain 201 is big, and smaller than the internal diameter in second part region 202.Thereby, it is possible to main part 210 is fixed on stage portion 203
On.As multiple through holes 211, in the present embodiment, as shown in Fig. 2, set as an example there are six through hole 211a,
211b,211c,211d,211e,211f.Through hole 211a is formed centered on the central axis L of main part 210.Through hole
211b~211f is formed at equal intervals in the predetermined circle centered on central axis L.The respective internal diameter of through hole 211a~211f
Be formed as, the opening area in total first part region 201 than horizontal joint 2 of the opening area of through hole 211a~211f
It is small.Adding up to for the opening area of multiple through hole 211a~211f is smaller than the opening area in first part region 201, thus in gas
Phase refrigerant as foam mixed liquid phase refrigerant pass through the first rectification part 21 when, inhibit foam growth and become it is larger
Bubble.As a result, in the case where liquid phase refrigerant flows to lower contact 3 via valve chamber 901 from horizontal joint 2, be able to suppress compared with
When big bubble is by valve chamber 901, the gap of spool 10 and valve seat 20 and the first opening 91 by sound (cavitation noise)
It generates.In addition, due to can inhibit foam growth and become biggish bubble, even if liquid phase refrigerant from lower contact 3 via
Valve chamber 901 and to horizontal joint 2 flow in the case where, be also able to suppress bubble by valve chamber 901 and second opening 92 when, it is larger
Bubble hit to second part region 202 inner wall and noise caused by rupturing generation.
In addition, in Fig. 2, enumerate through hole 211 number be six in case where, but can both form seven or more
Through hole 211, five multiple through holes 211 below can also be formed.In addition, illustrating through hole 211a is formed in main body
In the central axis L of portion 211a, and through hole 211b~211f is formed at equal intervals in the predetermined circle centered on central axis L
Situation, but the configuration of multiple through holes 211 is not limited to above-mentioned example.The number of through hole 211, configuration are based on various
Measurement, experiment etc. and be suitable for the number of generation, the configuration for inhibiting noise.
In the above-described embodiment, the feelings for making the laminal component of main part 210 of the first rectification part 21 are enumerated
Condition is illustrated.But it is also possible to which main part 210 can not also be lamellar as shown in the stereoscopic figure of (c) of Fig. 2
Component but along Z-direction have scheduled thickness component.The thickness of the Z-direction is based on various measurements, experiment
Deng and be suitable for inhibit noise generation thickness.
Hereinafter, being illustrated to lower contact 3 and the second rectification part 37.
As shown in Figure 1, lower contact 3 is the pipe fitting with the small outer diameter of the opening diameter than the first opening 91, insertion first
Opening 91 is installed on valve body 90 by soldering etc..Lower contact 3, which has, is located at the first opening 91 when being installed on the first opening 91
Near first part region 301 and connect with first part region 301 and to the direction (X-axis-for leaving the first opening 91
Direction) extend second part region 302.If lower contact 3 is installed on the first opening 91, the X-axis in first part region 301+
The end of side is abutted with the valve seat 20 of the inside of valve body 90.In addition, in the present embodiment, using lower contact 3 with only with valve
The example that the state that seat 20 abuts is installed on valve body 90 is illustrated, but if being the structure that lower contact 3 is connected to valve seat 20,
Then it is also possible to other structures.It does not abut with valve seat 20 for example, it can be lower contact 3 but is only abutted with valve body 90.Or
Person is also possible to lower contact 3 and is installed on valve seat 20 and valve body 90.
In first part region 301 and second part region 302, with horizontal joint 2 the case where is identical, and radial thickness is mutual
It is different.The radial thickness (wall thickness) in first part region 301 is bigger than the radial thickness (wall thickness) in second part region 302,
That is the internal diameter in first part region 301 is smaller than the internal diameter in second part region 302.Lower contact 3 is also identical as horizontal joint 2, passes through
Such as plastic processing, machining is carried out to wire rod, is capable of forming as above-mentioned construction.By by 301 He of first part region
Second part region 302 connects and forms stage portion 303.
Fig. 1 shows following situations as an example: with stage portion 303 in the X-axis direction positioned at the outer of valve body 90
Mode near surface (X-axis-side face), near the i.e. first opening 91 is formed with lower contact 3.In addition, stage portion 303
It is not limited to example shown in Fig. 1 in the position of X-direction, either near X-axis+side end of lower contact 3, it can also
To be the outer surface than valve body 90 by X-axis-side.
It is equipped with the second rectification part 37 in stage portion 203, such as fixed by being brazed, riveting etc..I.e., the second rectification part
37 are configured at the boundary in first part region 301 Yu second part region 302.It is opened as described above, stage portion 303 is formed in first
Near mouth 91, thus the second rectification part 37 is set near the first opening 91.Alternatively the second rectification part 37 is set to
The inside of lower contact 3.
Second rectification part 37 has construction identical with the first rectification part 21 shown in Fig. 2.Second rectification part 37
It is formed and the disk-shaped main part 310 in thin plate is equipped with multiple through holes 311 (311a~311f).Disk-shaped main body
The diameter in portion 310 is bigger and smaller than the internal diameter in second part region 302 than the internal diameter in the first part region 301 of lower contact 3, because
Main part 310 can be fixed in stage portion 303 by this.It is also multiple with the first rectification part 21 for multiple through holes 311
Through hole 211 is identical, if there are six through hole 311a~311f, the total of the opening area of through hole 311a~311f compares first
The opening area of partial region 301 is small.Through hole 311a is formed centered on the central axis L of main part 310.Through hole 311b
~311f is formed at equal intervals in the predetermined circle centered on central axis L.As a result, in the second rectification part 37, make to freeze
Agent is by multiple through hole 311a~311f, to also inhibit foam growth and become biggish bubble.Thereby, it is possible to inhibit compared with
When big bubble is by valve chamber 901, the gap of spool 10 and valve seat 20 and the second opening 92 by sound (cavitation noise)
It generates.
In addition, in the second rectification part 37, it can both form seven or more through holes 311 or form five
Multiple through holes 311 below.In addition, being formed on main part 301 for through hole 311a and through hole 311b~311f
Positional relationship, be not limited to example shown in Fig. 2.I.e., the number of through hole 311, configuration are based on various measurements, experiment
Deng and be suitable for the number of generation, the configuration for inhibiting noise.
Fig. 3 is the refrigeration exemplified by the flow control valve 1 of present embodiment as the refrigerating circulation system 500 of expansion valve
The figure in agent circuit.Refrigerating circulation system 500 shown in Fig. 3 has flow control valve 1, evaporator as expansion valve, and (interior is changed
Hot device) 4, compressor 5 and condenser (outdoor heat exchanger) 6, refrigerant passage 501,502,503 and 504 be sequentially connected this
A little devices.The refrigerant of the liquid flowed out from flow control valve 1 to refrigerant passage 501 is gasified by evaporator 4.If after gasification
Refrigerant is discharged from evaporator 4, then flows in refrigerant passage 502, compressed by compressor 5.If compressed refrigerant is from pressure
Contracting machine 5 is discharged, then flows in refrigerant passage 503, liquefied by condenser 6.Refrigerant after liquefaction is from condenser 6 to refrigerant
Access 504 flows out, and returns again to and flows into flow control valve 1.I.e., the refrigerant circuit of refrigerating circulation system 500 is by flow control
Valve 1, evaporator 4, compressor 5, condenser 6 and loop connecting these devices refrigerant passage 501~504 constitute.
The refrigerating circulation system 500 uses in air-conditioning device (refrigeration), deep freezer etc..In addition, the flow control valve 1
The structure of the refrigerating circulation system used as expansion valve is not limited to the knot of basic refrigerating circulation system 500 shown in Fig. 3
Structure.It, also can be in refrigeration that the flow direction for making the refrigerant in refrigerant circuit inverts, heating by assembling four-way valve
It is used in air-conditioning device.
According to above-mentioned first embodiment, function and effect below are obtained.
(1) flow control valve 1 has: lower contact 3, abuts with the valve seat 20 for the first opening 91 for being set to spool 10；With
And horizontal joint 2, it is connect via the second opening 92 for being set to the valve body 90 for accommodating spool 10 with valve chamber 901.It is being formed in
The stage portion 203 of horizontal joint 2 is equipped with the first rectification part 21 rectified to the fluid for flowing through horizontal joint 2, in the case where being formed in
The stage portion 303 of connector 3 is equipped with the second rectification part 37 rectified to the fluid for flowing through lower contact 3.Thereby, it is possible to will set
There are the horizontal joint 2 of the first rectification part 21, the lower contact 3 equipped with the second rectification part 31 to be installed on valve body 90, therefore be not required to
Three different different components to be installed by being brazed, riveting etc. as existing flow control valve.It therefore, can will be horizontal
Connector 2, lower contact 3 are easily installed at valve body 90, improve operating efficiency.
(2) first rectification parts 21 are set near the second opening 92, and the second rectification part 37 is set to the first opening 91
Near.The fluid for being flowed into valve chamber 901 is rectified as a result, the vapor phase refrigerant growth being able to suppress in liquid phase refrigerant
For biggish foam, therefore it is able to suppress generation by sound (cavitation noise) of the biggish bubble by valve chamber 901 when.
(3) horizontal joint 2 includes the first part region 201 with scheduled internal diameter near the second opening 92；And tool
There is the second part region 202 of the internal diameter bigger than the internal diameter in first part region 201, the first rectification part 21 is configured at first
The boundary of subregion 201 and second part region 202.Lower contact 3, which is included, has scheduled internal diameter near the first opening 91
First part region 301；With with the internal diameter bigger than the internal diameter in first part region 301 second part region 302, second
Rectification part 37 is configured at the boundary in first part region 301 Yu second part region 302.Thereby, it is possible to by the first rectification part
Part 21 and the second rectification part 37 are easily installed at the inside of horizontal joint 2 and lower contact 3.
(4) wall thickness in the wall ratio second part region 202 in the first part region 201 of horizontal joint 2 is big, the first rectification part
Part 21 is configured at the stage portion generated because the wall thickness in first part region 201 is different from the wall thickness in second part region 202
203.The wall thickness in the wall ratio second part region 302 in the first part region 301 of lower contact 3 is big, and the second rectification part 37 is matched
It is placed in the stage portion 303 generated because the wall thickness in first part region 301 is different from the wall thickness in second part region 302.As a result,
Installation and second rectification part 37 of first rectification part 21 to the inside of horizontal joint 2 be can easily be done to lower contact 3
Internal installation, therefore improve operating efficiency when flow control valve 1 manufactures.
(5) first rectification parts 21 and the second rectification part 37 have the through hole 211,311 passed through for fluid, pass through
The area ratio fluid of through-hole 211,311 is small by horizontal joint 2 and the area of lower contact 3.As a result, in vapor phase refrigerant as bubble
The mixed liquid phase refrigerant of foam pass through the first rectification part 21 and the second rectification part 37 when, inhibit foam growth and become compared with
Big bubble.As a result, it is possible to inhibit generation by sound of the biggish bubble by valve chamber 901 when.
(6) refrigerating circulation system 500 has the expansion valve of the flow control valve 1 as present embodiment, makes liquid gasification
Evaporator 4 and by compressor 5 that the fluid after gasification compresses and the condenser for making compressed fluid liquefaction
6.The refrigerating circulation system 500 is able to maintain that mute using the flow control valve 21 of above-mentioned operating efficiency when improving manufacture
Property.
Above-mentioned first embodiment can be deformed as described below.
First rectification part 21 and the second rectification part 37 are not limited to shape shown in Fig. 2.Hereinafter, referring to attached drawing
Indicate example.In addition, in the following description, enumerating the first rectification part 21 and being illustrated, to the second rectification part 37 also phase
Together.
(variation 1) Fig. 4 is the outside drawing of the first rectification part 21 in variation 1, and (a) of Fig. 4 is perspective view, Fig. 4
(b) be X/Y plane top view, (c) of Fig. 4 is the cross-sectional view of ZX plane.First rectification part 21 passes through the plectane in thin plate
The main part 210 of shape is equipped with a through hole 211 and is formed.First of the diameter of disk-shaped main part 210 than horizontal joint 2
The internal diameter of subregion 201 is big and smaller than the internal diameter in second part region 202.Refrigerant, which passes through, to be had than first part region 201
The small internal diameter (opening area) of internal diameter (opening area) through hole 211, become larger so as to inhibit foam to grow up
Bubble, and inhibit the generation of noise.In addition, through hole 211 be not limited to centered on the central axis L of main part 210 and
The example of formation, the central axis L of main part 210 and the central axis of through hole 211 can also be different.
In above-mentioned variation 1, the case where enumerating the 210 laminal component of main part for making the first rectification part 21
It is illustrated.But it is also possible to as shown in the stereoscopic figure of (d) of Fig. 4, the cross-sectional view of the ZX plane of (e) of Fig. 4 that
Sample, main part 210 can not be laminal component but have the component of the tubular of scheduled thickness along Z-direction.The Z axis
The thickness in direction is to be the thickness suitable for the generation for inhibiting noise based on various measurements, experiment etc..
(variation 2) Fig. 5 is the appearance of the first rectification part 21 in variation 2, and (a) of Fig. 5 is perspective view, Fig. 5's
(b) be in the case that the first rectification part 21 is installed on stage portion 203, from Z axis-side the first rectification part 21 feelings
The top view of the X/Y plane of condition.(c) of Fig. 5 is ZX plane the case where the first rectification part 21 is installed on stage portion 203
Cross-sectional view, (d) of Fig. 5 are the cross-sectional views of YZ plane the case where the first rectification part 21 is installed on stage portion 203.First is whole
Stream unit 21 is laminal main part 210.Main part 210 in variation 2 passes through excision first embodiment, variation 1
In main part 210 end and formed.But Fig. 2, through hole shown in Fig. 3 211 are not formed in main part 210.
Main part 210 is formed to have the plate in the face surrounded by following each section in the example shown in FIG. 5, that is, edge
Linear side 210a, 210b that X-direction extends；The connection of X-axis+side while 210a and while 210b second with horizontal joint 2
The corresponding arc 210c of the internal diameter of partial region 202；And the connection of X-axis-side while 210a and while 210b the with horizontal joint 2
The corresponding arc 210d of the internal diameter of two partial regions 202.I.e., the main part 210 of this variation passes through excision first embodiment, change
Y-axis+side end of the disk-shaped main part 210 of shape example 1 is nearby nearby formed with Y-axis-side end.Simultaneously by central axis L
The distance for linking arc 210c and arc 210d is equal with the internal diameter in second part region 202 of horizontal joint 2, therefore 210 benefit of main part
The stage portion 203 of the inside of horizontal joint 2 is fixed on arc 210c and arc 210d.As described above, if main part 210 is fixed on platform
Rank portion 203 then generates between the first part region 201 of horizontal joint 2 corresponding to the shape of disk-shaped end of excision
Space S 1, S2.The space S 1, the area ratio fluid of S2 are small by the area in the second part region 202 of horizontal joint 2.Therefore,
Refrigerant is able to suppress foam growth and becomes biggish bubble by space S 1, S2, and inhibits the generation of noise.
In addition, the amount of the area of space S 1, S2, the end for cutting off disk-shaped main part 210 be based on it is various measurement,
Experiment etc. and be suitable for inhibit noise generation size.
In addition, in the example shown in FIG. 5, side 210a and 210b be it is linear, however, you can also not be linear.Separately
Outside, in the main part 210 of variation 2, the through hole 211 illustrated in Fig. 2, Fig. 4 also can be set.
The case where enumerating the 210 laminal component of main part for making the first rectification part 21 is illustrated.But
Can be as shown in the stereoscopic figure of (e) of Fig. 5, main part 210 can not be laminal component but along Z-direction
Component with scheduled thickness.It is suitable for inhibition noise that the thickness of the Z-direction, which is based on various measurements, experiment etc.,
Generation thickness.
(variation 3) Fig. 6 is the appearance of the first rectification part 21 in variation 3, and (a) of Fig. 6 is perspective view, Fig. 6's
It (b) is the feelings of the first rectification part 21 from Z axis-side in the case that the first rectification part 21 is installed on stage portion 203
The top view of the X/Y plane of condition, (c) of Fig. 6 are ZX planes the case where the first rectification part 21 is installed on stage portion 203
The outside drawing of first rectification part 21.First rectification part 21 is laminal main part 210.Main part 210 in variation 3
The case where with variation 2, is identical, is formed by the end of the main part 210 in excision first embodiment, variation 1.But
It is not form Fig. 2, through hole shown in Fig. 3 211 in main part 210.
In Fig. 6, show following situations as an example: main part 210 is by the plate with criss-cross plane
The component of shape is constituted, and the flat component is by main body central portion 241, the first main part 242, the second main part 243, third master
Body portion 244 and the 4th main part 245 are constituted.Main body central portion 241 has the rectangle centered on the central axis L of horizontal joint 2
The plane of (such as square) shape.First main part 242 is connect with X-axis+side side 241a of main body central portion 241, and is had
Have by while 241a, extend to X-axis+side it is linear while 242a, 242b and connection while 242a and while 242b connect with horizontal
The plane that the corresponding arc 242c of the internal diameter in first 2 second part region 202 is surrounded.Second main part 243 and main body central portion 241
The side 241b connection of X-axis-side, and have by while 241b, extend to X-axis-side it is linear while 243a, 243b and
Connect while 243a and while 243b arc 243c corresponding with the internal diameter in second part region 202 of horizontal joint 2 surround plane.
Third main part 244 is connect with Y-axis+side side 241c of main body central portion 241, and is had by side 241c, to Y-axis+side and extended
The linear 244a and side 244b in 244a, 244b and connection with the second part region 202 of horizontal joint 2
The plane that the corresponding arc 244c of internal diameter is surrounded.4th main part 245 is connect with Y-axis-side side 241d of main body central portion 241,
And have by while 241d, extend to Y-axis-side it is linear while 245a, 245b and connection while 245a and while 245b
The plane that arc 245c corresponding with the internal diameter in second part region 202 of horizontal joint 2 is surrounded.
Pass through central axis L and links the internal diameter phase of the distance of arc 242c and 243c and the second part region 202 of horizontal joint 2
Deng passing through central axis L and the distance for linking arc 244c and 245d be equal with the internal diameter in second part region 202 of horizontal joint 2.Cause
This, main part 210 is fixed on the stage portion 203 of the inside of horizontal joint 2 using arc 242c, 243c, 244c and 245c.Institute as above
State, if main part 210 is fixed on stage portion 203, between the first part region 201 of horizontal joint 2 generate space S 10,
S20, S30 and S40.The space S 10, S20, S30, S40 area ratio fluid pass through the second part region 202 of horizontal joint 2
Area it is small.Therefore, refrigerant is able to suppress foam growth and becomes biggish gas by space S 10, S20, S30 and S40
Bubble, to inhibit the generation of noise.
In addition, it is suitable for suppression that the area of space S 10, S20, S30 and S40, which is based on various measurements, experiment etc.,
The size of the generation of noise processed.
In addition, in the example shown in Fig. 6, side 242a, 242b, 243a, 243b, 244a, 244b, 245a and 245b are
Linearly, however, you can also not be linear.In addition, also can be set in Fig. 2, Fig. 4 and illustrate in the main part 210 of variation 2
Through hole 211.
In above-mentioned variation 3, the case where enumerating the 210 laminal component of main part for making the first rectification part 21
It is illustrated.But it is also possible to which main part 210 can not be lamellar as shown in the outside drawing of the ZX plane of (d) of Fig. 6
Component but along Z-direction have scheduled thickness component.The thickness of the Z-direction is based on various measurements, experiment etc.
And it is the thickness suitable for the generation for inhibiting noise.
(variation 4) first rectification part 21 is the hollow cylindrical shape using the central axis L of horizontal joint 2 as axis, average air
Porosity is 100 μm to 500 μm, is also possible to the well known porous filter that voidage is 50% or more.In this case, first is whole
The outer diameter of stream unit 21 be again formed as it is equal with the internal diameter in second part region 202 of horizontal joint 2, it is solid by being brazed, riveting etc.
Due to stage portion 203.In addition, first rectification part 21 is not limited to the cylindric porous mistake for having hollow in variation 4
Filter, it is possible to have other shapes.For example, it can be formed as the columnar porous filter without hollow space.
In above-mentioned first embodiment and variation, enumerates and be equipped with the first rectification part 21, under in horizontal joint 2
Connector 3 is illustrated equipped with the case where the second rectification part 37, but can also be not provided with the second rectification part in lower contact 3
37 or the first rectification part 21 is not provided in horizontal joint 2.
Second embodiment-
The flow control valve of second embodiment of the present invention is illustrated.In the following description, to it is first real
It applies the identical constituent element mark the same symbol of mode and mainly illustrates difference.It is real for the point being not particularly illustrated and first
It is identical to apply mode.In the present embodiment, horizontal joint and the shape of lower contact are different from the first embodiment.
Fig. 7 indicates the outline of the structure of the flow control valve 1 of second embodiment.
Horizontal joint 22 is following pipe fitting, comprising: has first of the outer diameter smaller than the opening diameter of the second opening 92
Subregion 221；Second part region 222 with the internal diameter bigger than first part region 221；And connection first part region
221 and second part region 222 Part III region 223.Second opening 92 of the insertion of first part region 221, so that horizontal connect
First 22 are installed on valve body 90 by soldering etc..Horizontal joint 22 passes through attached to the Z axis-side end connecting with the second opening 92
It is close to implement draw processing, so as to form the different first part region 221 of internal diameter and second part region 222 and connection
The Part III region 223 in first part region 221 and second part region 222.In addition, horizontal joint 22 can also be by right
Expander processing is implemented in Z axis+side, to form above-mentioned first part region 221, second part region 222 and Part III
Region 223.Horizontal joint 22 is manufactured by above-mentioned draw processing, expander processing, and thus Part III region 223 is in Z axis-
Side has the internal diameter equal with the internal diameter in first part region 221, has the internal diameter phase with second part region 222 in Z axis+side
Deng internal diameter.Part III region 223 is the rake that internal diameter becomes larger from Z axis-lateral edge+side.Second part region
222 have the recess portion 224 being formed near the interconnecting piece connecting with Part III region 223.
The case where first rectification part 21 is with first embodiment shown in Fig. 2 is identical.I.e., by having than first
The disk-shaped main part 210 of big and smaller than the internal diameter in second part region 222 diameter of the internal diameter of subregion 221 is equipped with multiple
Through hole 211 and formed.Therefore, the first rectification part 21 riveting such as by having than in first part region 221
It is fixed between the Part III region 223 and recess portion 224 of big and smaller than the internal diameter in second part region 222 internal diameter of diameter.I.e.,
First rectification part 21 is configured at the boundary in first part region 221 Yu second part region 222.Alternatively it is formed in first
Rake that is, Part III region 223 between partial region 221 and second part region 222 is as whole for configuring first
The stage portion of stream unit 21 functions.
As described above, horizontal joint 22 is installed by the way that the second opening 92 is inserted into first part region 221, therefore third portion
Subregion 223 is located at the outer surface (Z-direction+side) of valve body 90 near the second opening 92.Therefore, the first rectification part
21 are set near the second opening 92.Alternatively the first rectification part 21 is set to the inside of horizontal joint 22.Even if as a result,
In two embodiments, in the case where vapor phase refrigerant is mixed into liquid phase refrigerant as foam, the first rectification part 21
Become biggish bubble as foam growth is inhibited to which noise elimination part the reason of becoming noise, mute portion function.
Lower contact 32 is following pipe fitting, comprising: has first of the outer diameter smaller than the opening diameter of the first opening 91
Subregion 321；Second part region 322 with the internal diameter bigger than first part region 321；And connection first part region
321 and second part region 322 Part III region 323.By first opening 91 of the insertion of first part region 321, thus under
Connector 33 is installed on valve body 90 by soldering etc..If lower contact 32 is installed on valve body 90, the X in first part region 321
Axis+side end is abutted with the valve seat 20 of the inside of valve body 90.In addition, in the present embodiment, using lower contact 32 with only
The example that the state abutted with valve seat 20 is installed on valve body 90 is illustrated, but if being that lower contact 32 is connected to valve seat 20
Structure is then also possible to other structures.Can not be abutted with valve seat 20 for example, it can be lower contact 32 but only with valve body
90 abut.Alternatively, being also possible to lower contact 32 is installed on valve seat 20 and valve body 90.Lower contact 32 is identical as horizontal joint 22, leads to
Cross to the implementation draw processing nearby of 91 X-axis+side end for connect of the first opening, so as to formed internal diameter it is different first
The third in partial region 321 and second part region 322 and connection first part region 321 and second part region 322
Partial region 323.In addition it is also possible to by implementing expander processing to X-axis-side, so that lower contact 32 forms above-mentioned first
Subregion 321, second part region 322 and Part III region 323.Part III region 323 has and the in X-axis+side
The equal internal diameter of the internal diameter in a part of region 321 has the internal diameter equal with the internal diameter in second part region 322 in X-axis-side.
Part III region 323 is the rake that internal diameter becomes larger from X-axis+lateral edge-side.Second part region 322, which has, to be formed
Recess portion 324 near the interconnecting piece being connect with Part III region 323.
Second rectification part 37 is identical as the first rectification part 21 of horizontal joint 22 is set to, by having than first part
The disk-shaped main part 310 of big and smaller than the internal diameter in second part region 322 diameter of the internal diameter in region 321 is equipped with multiple pass through
Through-hole 311 and formed.The case where second rectification part 37 is set to horizontal joint 22 with the first rectification part 21 is identical, such as passes through riveting
It connects etc. and to be fixed between the Part III region 323 and recess portion 324 of lower contact 32.The second rectification part 37 is set to as a result,
Near the boundary in first part region 321 and second part region 322 that is, the first opening 91.Alternatively it is formed in first
Rake that is, Part III region 323 between partial region 321 and second part region 322 is as whole for configuring second
The stage portion of stream unit 37 functions.Alternatively the first rectification part 21 is set to the inside of lower contact 32.Even if existing as a result,
In second embodiment, in the case where vapor phase refrigerant is mixed into liquid phase refrigerant as foam, the second rectification part 37
Also become biggish bubble as foam growth is inhibited to which noise elimination part the reason of becoming noise, mute portion function.
In addition, even if in this second embodiment, the number of through hole 211,311, configuration are also not limited to illustrated in Fig. 2
Configuration, be set as based on various measurements, experiment etc. suitable for the number of generation, the configuration for inhibiting noise.In addition, making
For the first rectification part 21 and the second rectification part 37, first in the variation illustrated using Fig. 4~Fig. 6 also can be used
Rectification part 21 and the second rectification part 37.
In addition, in this second embodiment, enumerating and being equipped with the first rectification part 21 in horizontal joint 22 and set in lower contact 32
The case where having the second rectification part 37, is illustrated, can also lower contact 32 be not provided with the second rectification part 37 or
Horizontal joint 22 is not provided with the first rectification part 21.
In addition, the flow control valve 1 of above-mentioned second embodiment can be used as refrigerating circulation system shown in Fig. 3
500 expansion valve come using.
Second embodiment from the description above, in addition to obtained by first embodiment (1), (2), (3), (5),
(6) other than function and effect, function and effect below are also obtained.
The internal diameter in the first part region 221 of horizontal joint 2 is smaller than the internal diameter in second part region 222, the first rectification part
21 are configured at because of the internal diameter in first part region 221 and outer diameter are different from the internal diameter in second part region 222 inclining of generating
Inclined portion that is, Part III region 223.Internal diameter of the internal diameter in the first part region 321 of lower contact 3 than second part region 322
Small, the second rectification part 37 is configured at internal diameter and outer diameter because of first part region 321 and the internal diameter in second part region 322
Different and generation rake that is, Part III region 323.As a result, the first rectification part 21 and the second rectification part 37 to
The installation of the inside of horizontal joint 2 and lower contact 3 becomes easy, therefore improves operating efficiency when flow control valve 1 manufactures.
As long as not damaging feature of the invention, the present invention is not limited to above embodiment, in technology of the invention
The other way considered in the range of thought is also contained in the scope of the present invention.
Claims (9)
1. a kind of flow control valve, which is characterized in that have:
Shell is equipped with as the inflow entrance of fluid or the first opening of outflux and the second opening；
Spool is set to the inside of above-mentioned shell, and adjusts the opening area between valve seat；
First pipe fitting is set to above-mentioned first opening, and is connected to above-mentioned valve seat；And
Second pipe fitting is set to above-mentioned second opening, and connect with the inside of above-mentioned shell,
At least one pipe fitting of above-mentioned first pipe fitting and above-mentioned second pipe fitting has stage portion in inside, at above-mentioned
Rank portion is equipped with the rectification part rectified to the fluid for flowing through at least one above-mentioned pipe fitting.
2. flow control valve according to claim 1, which is characterized in that
When at least one above-mentioned pipe fitting includes above-mentioned first pipe fitting, it is equipped with above-mentioned rectification part near above-mentioned first opening,
When at least one above-mentioned pipe fitting includes above-mentioned second pipe fitting, above-mentioned rectification part is equipped near above-mentioned second opening.
3. flow control valve according to claim 1 or 2, which is characterized in that
At least one pipe fitting of above-mentioned first pipe fitting and the second pipe fitting is included to be had near above-mentioned second opening
The first part region of first internal diameter；And the second part region with the internal diameter bigger than the first internal diameter,
Above-mentioned rectification part is configured at the boundary in above-mentioned first part region Yu above-mentioned second part region.
4. flow control valve according to claim 3, which is characterized in that
The wall thickness in the above-mentioned second part region of the wall ratio in above-mentioned first part region is big,
Above-mentioned stage portion is formed because the wall thickness in above-mentioned first part region is different from the wall thickness in above-mentioned second part region.
5. flow control valve according to claim 3, which is characterized in that
The internal diameter in above-mentioned first part region is smaller than the internal diameter in above-mentioned second part region,
Above-mentioned stage portion is formed by rake, internal diameter and above-mentioned second part region of the rake because of above-mentioned first part region
Internal diameter it is different and generate.
6. flow control valve according to any one of claims 1 to 5, which is characterized in that
Above-mentioned rectification part has a through portion passed through for above-mentioned fluid, the area ratio fluid of above-mentioned through portion by it is above-mentioned at least
The area of one pipe fitting is small.
7. flow control valve according to claim 6, which is characterized in that above-mentioned rectification part is formed by thin plate.
8. flow control valve according to claim 7, which is characterized in that above-mentioned rectification part is along at least one above-mentioned pipe fitting
The direction of extension has thickness.
9. a kind of refrigerating circulation system, which is characterized in that have:
Flow control valve described in any one of claim 1~8 that is, expansion valve；Make the evaporator of above-mentioned fluid gasification；
The compressor that above-mentioned fluid after gasification is compressed；And
Make the condenser of compressed above-mentioned fluid liquefaction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018028746A JP6938401B2 (en) | 2018-02-21 | 2018-02-21 | Flow control valve and refrigeration cycle system |
| JP2018-028746 | 2018-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110173569A true CN110173569A (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910093591.4A Pending CN110173569A (en) | 2018-02-21 | 2019-01-30 | Flow control valve and refrigerating circulation system |
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| Country | Link |
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| JP (1) | JP6938401B2 (en) |
| CN (1) | CN110173569A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648390A (en) * | 2019-10-10 | 2021-04-13 | 株式会社鹭宫制作所 | Control valve |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7029169B2 (en) * | 2018-07-25 | 2022-03-03 | 株式会社不二工機 | Solenoid valve |
| JP7370833B2 (en) | 2019-11-29 | 2023-10-30 | 株式会社鷺宮製作所 | Piping connection structure and valve device equipped with the same |
| JP2021143759A (en) * | 2020-03-11 | 2021-09-24 | 株式会社不二工機 | Valve gear |
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| JPS5117032A (en) * | 1974-08-03 | 1976-02-10 | Hitachi Ltd | RYURYOSEIGENSOCHI |
| JPH0744910Y2 (en) * | 1989-08-10 | 1995-10-11 | 株式会社ガスター | Water amount control device for water heater |
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| JPH07146032A (en) * | 1993-11-26 | 1995-06-06 | Matsushita Seiko Co Ltd | Expansion valve |
| CN1236083A (en) * | 1998-05-14 | 1999-11-24 | 松下电器产业株式会社 | Silencer and air conditioner |
| JP2002350003A (en) * | 2001-05-22 | 2002-12-04 | Hitachi Ltd | Air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6938401B2 (en) | 2021-09-22 |
| JP2019143726A (en) | 2019-08-29 |
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