CN108348877A - Gas mixer - Google Patents
Gas mixer Download PDFInfo
- Publication number
- CN108348877A CN108348877A CN201680028757.9A CN201680028757A CN108348877A CN 108348877 A CN108348877 A CN 108348877A CN 201680028757 A CN201680028757 A CN 201680028757A CN 108348877 A CN108348877 A CN 108348877A
- Authority
- CN
- China
- Prior art keywords
- gas
- guide
- valve
- pressure
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000001125 extrusion Methods 0.000 claims description 24
- 238000005266 casting Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 13
- 230000003247 decreasing effect Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 222
- 230000002093 peripheral effect Effects 0.000 description 13
- 238000010276 construction Methods 0.000 description 9
- 238000002788 crimping Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/81—Forming mixtures with changing ratios or gradients
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Fluid Pressure (AREA)
- Accessories For Mixers (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
A kind of gas mixer (1) includes guide's pressure reducing valve (2) and equalizing valve (3).Guide's pressure reducing valve (2) includes guide's shell (21), guide's valve rod (22), second guide's shell (23), guide's sealing element (24) and guide valve blocks (26).It is moved back and forth in the axial direction by guide's valve rod (22), realizes guide valve blocks (26) and the second state that guide's shell (23) is in contact with each other and they are separated from each other.In the state that guide valve blocks (26) and second guide's shell (23) are in contact with each other, first pressure space (21A), second pressure space (21B) and third pressure space (21C) are formed in guide's shell (21).Third pressure space (21C) is connected to second pressure space (21B).Guide's sealing element (24) is fixed to guide's shell (21).
Description
Technical field
The present invention relates to a kind of gas mixers.
Background technology
Gas mixer can be used for mixing two kinds of gas with various for supply.In the structure of gas mixer
In, such as pressure reducing valve is used to gas pressure being decreased to equal regulation secondary stress from principal pressure, and gained gas is blended in
Together (see, for example, patent document 1).
Quotation list
Patent document
Patent document 1：Japanese Patent Application Publication No. 2006-349030
Invention content
Technical problem
It is preferred that gas mixer has high responsiveness.The object of the present invention is to provide a kind of gas mixings that response is outstanding
Device.
Solution to the problem
Gas mixer according to the present invention includes guide's pressure reducing valve, equalizing valve and mixing section.Guide's pressure reducing valve will be into
The pressure of the pilot gas entered is decreased to pilot pressure, and gained gas is discharged.Equalizing valve is connected to guide's pressure reducing valve, and is based on
The pilot pressure for the pilot gas being discharged from guide's pressure reducing valve, is decreased to phase by the pressure of the first gas of introducing and second gas
Deng pressure and be discharged gained gas.Mixing section receives the first gas and second gas being discharged from equalizing valve, by the first gas
Discharge gained gas after body and second gas mixing.Guide's pressure reducing valve include guide's shell, guide's valve rod, second guide's shell,
Guide's sealing element, guide's extrusion and guide valve blocks.Guide's valve rod is arranged in guide's shell and can be in the axial direction
It moves back and forth.Second guide's shell is arranged in guide's shell and is fixed to guide's shell.Guide's sealing element is arranged to and guide
The outer surface of valve rod and the inner surface contact of guide's shell, so as to keep airtight conditions between guide's valve rod and guide's shell.
Guide's extrusion is arranged to squeeze guide's valve rod with guide's valve stem contacts and in the axial direction.Guide valve blocks are mounted on pilot valve
On bar.Guide's valve rod realizes the shape that guide valve blocks and second guide's shell are in contact with each other by moving back and forth in the axial direction
The state that state and guide valve blocks and second guide's shell are separated from each other.It is formed in guide's shell and passes through its stream for pilot gas
Guide's flow channel for entering and the pilot gas for being decreased to pilot pressure for pressure pass through guide's flow pass of its outflow.Formerly
In the state that pilot valve body and second guide's shell are in contact with each other, first pressure space, second pressure space are formed in guide's shell
With third pressure space.First pressure space is surrounded by guide's valve rod, guide's shell and second guide's shell, and is connected to guide
Flow channel.Second pressure space is arranged in the side opposite with the side residing for first pressure space of guide valve blocks, and even
It is connected to guide's flow pass.Third pressure space is arranged in the opposite with the side residing for first pressure space of guide's sealing element
Side, and with the end thereof contacts of guide's valve rod.Third pressure space is connected to second pressure space.Guide's sealing element is fixed to elder generation
Lead shell.
The gas mixer of the present invention includes equalizing valve, and equalizing valve is connected to guide's pressure reducing valve and is based on from guide's pressure reducing valve
The pressure of the first gas of introducing and second gas is decreased to equal pressure by the pilot pressure of the pilot gas of discharge, and is discharged
The first gas and second gas that pressure reduces.This allows to the elder generation by adjusting the pilot gas being discharged from guide's pressure reducing valve
Pilot power adjusts the pressure of first gas and second gas.
Further, in the gas mixer of the present invention, the third pressure space in guide's pressure reducing valve and second pressure
Space communicates with each other.Which reduce act on corresponding between third pressure space and second pressure space on guide's valve rod
The power of pressure difference.However, the power of the pressure difference corresponded between third pressure space and first pressure space on axial direction can act on
In guide's sealing element.Herein, for the state for keeping guide valve blocks and second guide's shell to be in contact with each other, make guide valve blocks pressure
Axial force (extrusion load) is applied with to guide's valve rod on the direction of second guide's shell.
In the case where guide's sealing element is fixed to guide's valve rod, correspond to third pressure space and first pressure space it
Between the power of pressure difference will act on guide's valve rod.Therefore, the shape in order to keep guide valve blocks and second guide's shell to be in contact with each other
State, other than above-mentioned extrusion load, it is necessary to apply to guide's valve rod and correspond to third pressure space and first pressure space
Between pressure difference power.
Specifically, for example, assuming that maximum differential pressure between third pressure space and first pressure space is 0.45MPa, the
Minimum differntial pressure between three pressure spaces and first pressure space is 0.15MPa, and guide's sealing element is perpendicular to axial direction
Area of section in plane is 18.8mm2, and above-mentioned extrusion load is 5.89N.In this case, in order to keep guide valve blocks
It is as follows to be applied to the power setting of guide's valve rod with the contact condition between second guide's shell.
By the way that the pressure difference between third pressure space and first pressure space is multiplied by guide's sealing element perpendicular to axial direction
Area of section in the plane in direction obtains the power for acting on guide's sealing element.In third pressure space and first pressure space
Between pressure difference and guide's sealing element area of section be above-mentioned value in the case of, when third pressure space and first pressure are empty
Between between pressure difference when reaching maximum differential pressure, acting on the power of guide's sealing element becomes 8.46N.On the other hand, when third pressure
When pressure difference between space and first pressure space reaches minimum differntial pressure, acting on the power of guide's sealing element becomes 2.82N.Such as
This, the power for acting on guide's sealing element just changes according to the variation of the pressure difference between third pressure space and first pressure space
Become.
In order to keep the contact condition between guide valve blocks and second guide's shell, it should apply to guide's valve rod and correspond to the
Power when pressure difference between three pressure spaces and first pressure space becomes maximum pressure difference is (that is, by the extruding in above-mentioned 5.89N
The power of 14.35N for increasing 8.46N in load and obtaining).However in this case, when third pressure space and first pressure
Pressure difference between space becomes hour, and the power for acting on guide's valve rod will be excessive.When third pressure space and first pressure space
Between pressure difference minimum when, it is 8.71N, the power to keep the power needed for the contact condition between guide valve blocks and second guide's shell
It is obtained by increasing 2.82N in the extrusion load of above-mentioned 5.89N.It means that when third pressure space is empty with first pressure
Between between pressure difference when becoming minimum differntial pressure, the power of excessive 5.64N will act on guide's valve rod.
That is, when the pressure difference between third pressure space and first pressure space becomes small, guide's valve rod is above-mentioned excessive
It can become no response in the range of power.As a result, in the case where guide's sealing element is fixed to guide's valve rod, the sound of guide's pressure reducing valve
Answering property reduces.
In contrast, in gas mixer according to the present invention, guide's sealing element is fixed to guide's shell.The construction makes
Obtaining guide's shell can bear to act on the pressure of guide's sealing element corresponded between third pressure space and first pressure space
The power of difference.Without applying the power for corresponding to the pressure difference between third pressure space and first pressure space to guide's valve rod.As a result,
The range that guide's valve rod becomes the pressure change in second pressure space no response narrows, to improve guide's pressure reducing valve
Response.
In this way, gas mixer according to the present invention, can provide the gas mixer with outstanding response.
In above-mentioned gas mixer, equalizing valve may include equal pressure shell body, the first equalizing valve bar, the second equalizing valve bar,
One extrude casting die, second is extruded casting die, the first soft valve body, the second soft valve body, the first hard valve body and the second hard valve body.First
Equalizing valve bar and the second equalizing valve bar are arranged in equal pressure shell body, and are moved back and forth on axial direction.First extrusion casting die is set
It sets in equal pressure shell body, constitutes a part for the wall surface of pilot gas room (it is the space for being connected to guide's pressure reducing valve), and
And it contacts the first equalizing valve bar and squeezes the first equalizing valve bar in the axial direction.Second extrusion casting die is arranged in equal pressure shell body
It is interior, another part of the wall surface of pilot gas room is constituted, and contact the second equalizing valve bar and squeeze the in the axial direction
Two equalizing valve bars.First soft valve body is mounted on the first equalizing valve bar.Second soft valve body is mounted on the second equalizing valve bar.First
Hard valve body is arranged to relative to the first equalizing valve bar axially reciprocating.Second hard valve body is arranged to relative to the second equalizing valve bar
Axially reciprocating.First gas flow channel, first gas passing away, logical among first gas are formed in equal pressure shell body
Road, second gas flow channel, second gas passing away and second gas intermediate channel.First gas passes through first gas
Flow channel flows into.First gas is discharged by first gas passing away.First gas intermediate channel connects first gas stream
Enter channel and first gas passing away.Second gas is flowed by second gas flow channel.Second gas passes through the second gas
Body passing away is discharged.Second gas intermediate channel connects second gas flow channel and second gas passing away.First is soft
The junction between first gas flow channel and first gas intermediate channel is arranged in valve body.First hard valve body is arranged first
Junction between gas intermediate channel and first gas passing away.Second soft valve body setting second gas flow channel with
Junction between second gas intermediate channel.Second hard valve body setting is logical in second gas intermediate channel and second gas discharge
Junction between road.
The construction allows each the hard valve body being mounted on corresponding equalizing valve bar to be moved back and forth in the axial direction to beat
Connection between open and close gas intermediate channel and gas outlet channels is enable to steadily control from gas inflow
Channel flows to the small flow velocity of the gas of gas outlet channels.Further, when the soft valve body for being fixed to equalizing valve bar closes gas
When gap between body intermediate channel and gas flow channel, the connection with gas outlet channels is therefore steady by soft valve seal
Surely the tight shut-off state between gas flow channel and gas outlet channels is maintained.Thereby it can be assured that both having controlled small
Gas flow rate controls reliable sealing state again.By using above-mentioned equalizing valve, a kind of outstanding elder generation of property in response can be provided
It leads pressure reducing valve and can ensure not only to have controlled small gas flow rate but also the high-performance gas of the combination of the equalizing valve that controls reliable sealing state
Body mixer.The other materials that each hard valve body is basically unchanged shape by such as metal or in closing gap are made.Each
By such as resin, rubber or in closing gap, deformable other materials are made soft valve body.
In above-mentioned gas mixer, first extrude casting die and second extrusion casting die each can include elasticity
Part and support element.Material of the support element by rigidity higher than elastic component is made, and supports elastic component.Elastic component include base portion and
Protrusion.Base portion is plate-like.Protrusion is arranged about the periphery of base portion and pilot gas room is made to increase
Side project upwards.Base portion is entirely by supports support.The construction allows to pilot pressure being transferred to each
Pressure valve bar, while preventing elastic component from elastic loss occurs.
In above-mentioned gas mixer, mixing section may include mixture ratio regulator and merge container.Mixture ratio regulator
The mixing ratio of the first gas and second gas that are discharged from equalizing valve is adjusted, and by first gas and second gas respectively from first
Gas passage and the discharge of second gas channel.Merge container and be connected to first gas passage and second gas channel, and with conjunction
And room, the area of section perpendicular to the flow direction of first gas and second gas for merging room are more than first gas passage and the
The area of section of two gas passages.The construction makes it possible to uniformly mix first gas and second gas, and it is high to mix accuracy.
In above-mentioned gas mixer, first gas be expelled to from first gas passage merge the direction of container can be along the
Two gases are expelled to the direction for merging container from second gas channel.The construction prevents mixing accuracy to reduce, from equalizing valve
The collision of the first gas and second gas of discharge causes to mix accuracy reduction.
The effect of the present invention
Can be clear by above description, gas mixer according to the present invention can provide the gas with outstanding response
Body mixer.
Description of the drawings
Fig. 1 is the schematic diagram for the structure for showing gas mixer；
Fig. 2 is the schematic cross sectional views for the structure for showing guide's pressure reducing valve；
Fig. 3 is the schematic cross sectional views for the structure for showing equalizing valve；
Fig. 4 is the enlarged schematic sectional view for the major part for showing equalizing valve；
Fig. 5 is the schematic cross sectional views for the operation for illustrating guide's pressure reducing valve；
Fig. 6 is another schematic cross sectional views for the operation for illustrating guide's pressure reducing valve；
Fig. 7 is the schematic cross sectional views for the operation for illustrating equalizing valve；
Fig. 8 is another schematic cross sectional views for the operation for illustrating equalizing valve；
Fig. 9 is another schematic cross sectional views for the operation for illustrating equalizing valve.
Specific implementation mode
Embodiment of the present invention is described below with reference to attached drawing.In the following figures, identical or corresponding component is by identical
Reference numeral indicates, therefore their description will not be repeated.
Include guide's pressure reducing valve 2, equalizing valve 3, mixing section according to the gas mixer 1 of the first embodiment with reference to figure 1
5 and flow rate regulating valve 6.
Equalizing valve 3 is connect with first pipe 91, second pipe 92, third pipeline 93 and the 4th pipeline 94.First pipe 91
It is connected to first gas flow channel 31A.Second pipe 92 is connected to second gas flow channel 31D.Third pipeline 93 connects
To first gas passing away 31B.4th pipeline 94 is connected to second gas passing away 31E.
Guide's pressure reducing valve 2 is connect with the 5th pipeline 95 and the 6th pipeline 96.One end of 5th pipeline 95 is connected to guide and subtracts
Guide's flow channel 27 of pressure valve 2.The other end of 5th pipeline 95 is connected to second pipe 92.One end of 6th pipeline 96 connects
To guide's flow pass 28.The other end of 6th pipeline 96 is connected to the pilot gas room 34 in the equal pressure shell body 31 of equalizing valve 3.
Mixing section 5 includes merging container 51 and mixture ratio regulator 53.Mixture ratio regulator 53 and third pipeline 93 and
4th pipeline 94 connects.Merge container 51 and mixture ratio regulator 53 to connect via the 7th pipeline 97 and the 8th pipeline 98.7th
Pipeline 97 is connected to first gas passage 51A.8th pipeline 98 is connected to second gas channel 51B.The setting of 9th pipeline 99 exists
Between mixing section 5 and flow rate regulating valve 6.
With reference to figure 2, guide's pressure reducing valve 2 includes guide's shell 21, guide's valve rod 22, second guide's shell 23, guide's sealing
Part 24, guide's extrusion 25 and guide valve blocks 26.
Guide's shell 21 includes the first external frame 211 and the second external frame 212.Second external frame 212 has more
Grade cylindrical interior space, one end are bottom 212B, another end opening.The diameter of the inner space of second external frame 212 with
The distance away from above-mentioned one end to reduce and reduce.First external frame 211 has multistage cylindrical guide inner space 21D,
Both ends are open.The diameter of the guide inner space 21D of first external frame 211 subtracts as the distance away from one end reduces
It is small.First external frame 211 connects when being assembled each other with the second external frame 212, so as to 211 other end of the first external frame
Peripheral surface is contacted with the inner peripheral surface of 212 other end of the second external frame.
Adjustment axis 211C is disposed through one end of the first external frame 211.One end of adjustment axis 211C is connected with adjusting
Part 211B.The other end of adjustment axis 211C is located in the 21D of guide inner space.
Guide's pressure reducing valve 2 includes the guide's spring 251 being located in the 21D of guide inner space.One termination of guide's spring 251
Touch the first support section 211D.Above-mentioned the first support section of another end in contact 211D of adjustment axis 211C with contact guide's spring
The opposite side in 251 side.
Guide's extrusion 25 includes diaphragm 252, support section 253 and crimping section 254.Diaphragm with through-hole at center
252 are clipped between the first external frame 211 and the second external frame 212, and supported.The outer peripheral portion of diaphragm 252 has court
Guide inner space 21D protrusion 252A outstanding.Crimping section 254 be include disc-shaped main body part and in the axial direction
From the shape of main part protrusion outstanding.The main part of crimping section 254 is located at relative to diaphragm 252 outside second
212 side of frame, and protrusion passes through the through-hole of diaphragm 252 to enter 211 side of the first external frame.Centered on support section 253
Locate the plate-like with through-hole.Support section 253 is arranged relative to diaphragm 252 in 211 side of the first external frame.In crimping section
254 protrusion is inserted into the state of the through-hole of support section 253, diaphragm 252 and crimping section 254 and support section 253
It contacts and is clipped in therebetween.Support section 253 is arranged to another end in contact with guide's spring 251.
Guide's valve rod 22 is arranged in the second external frame 212.Through-hole 22A, through-hole 22A mono- are formed in guide's valve rod 22
End opening, it is axially extending, and the radial penetration at position of the guide valve blocks 26 closer to the other end.The other end of guide's valve rod 22
Contact squeeze part 254.Guide's valve rod 22 is arranged to move in the axial direction.
Second guide's shell 23 is arranged to the part around the periphery of guide's valve rod.Second guide's shell 23 and pilot valve
Bearing portions 232 is equipped between bar 22.Second guide's shell 23 is airtightly fixed to the inner peripheral surface of the second external frame 212
At center, O-ring 231 is accompanied therebetween.Shell channel 23A, shell channel 23A connections are formed in second guide's shell 23
Second pressure space 21B and first pressure space 21A.The through-hole 22A of guide's valve rod 22 is connected to shell channel 23A.Therefore,
Two pressure space 21B are connected to third pressure space 21C.
Guide valve blocks 26 are annular.Since guide's valve rod 22 is inserted through guide valve blocks 26, guide valve blocks 26 are solid
Determine to guide's valve rod 22.It is moved back and forth in the axial direction by guide's valve rod 22, realizes guide valve blocks 26 and the second guide
The state that the state and guide valve blocks and second guide's shell that shell 23 is in contact with each other are separated from each other.Cylinder shape valve fastening part
Divide 261 outer peripheral portions for being disposed over guide valve blocks 26.
Guide's sealing element 24 includes the first sealing fastening part 241, the sealing fastening part 243 of O-ring 242 and second.First
The inner peripheral surface that sealing element 24 is fixed to the second external frame 212 is led, is located at and second guide's shell relative to guide valve blocks 26
The opposite side in 23 sides.It is equipped with helical spring 262 between second sealing fastening part 243 and valve body fastening part 261.Spiral bullet
The end thereof contacts second of spring 262 seal fastening part 243.Another end in contact valve body fastening part 261 of helical spring 262.O shapes
Ring 242 is arranged to be clipped between the first sealing fastening part 241 and second sealing fastening part 243.O-ring 242 is arranged to connect
Touch the inner peripheral surface of the peripheral surface and the second external frame 212 of guide's valve rod 22.Guide's valve rod 22 and the second external frame 212
It is offseted each other sealing by O-ring 242.
First pressure space 21A, guide's valve rod 22, guide's shell 21 and second guide's shell 23 are formed in guide's shell 21
Around first pressure space 21A.First pressure space 21A is connected to guide's flow channel 27.Second pressure space 21B is opposite
It is arranged in the side opposite with the first pressure space sides 21A in guide valve blocks 26.Second pressure space 21B is connected to guide's outflow
Channel 28.Third pressure space 21C is yet formed, which is arranged relative to guide's sealing element 24 with the
The opposite side in one sides pressure space 21A, and with the end thereof contacts of guide's valve rod 22.Third pressure space 21C and second pressure
Space 21B is connected to.
With reference to figure 3 and Fig. 4, equalizing valve 3 includes：Equal pressure shell body 31；First pressure reducing valve 301 comprising the first equalizing valve bar
32, it first extrudes casting die 35, the first soft valve body 371 and the first hard valve body 372；And second pressure reducing valve 302 comprising
Two equalizing valve bars 33, second are extruded casting die 36, the second soft valve body 381 and the second hard valve body 382.First pressure reducing valve 301 and
Two pressure reducing valves 302 are arranged in pairs so as to relative to each other along axis.First extrusion casting die 35 is arranged in equal pressure shell body 31, and
A part for the wall surface of pilot gas room 34 is constituted, pilot gas room 34 is the space for being connected to guide's pressure reducing valve 2.Second
Casting die 36 of extruding constitutes another part of the wall surface of pilot gas room 34.
It is formed by the first extrusion casting die 35, second pilot gas room 34 that casting die 36 and equal pressure shell body 31 surround of extrude
Between the first pressure reducing valve 301 and the second pressure reducing valve 302.Pilot gas room 34 is connect with guide's flow pass 28.
First pressure reducing valve 301 and the second pressure reducing valve 302 have similar structure, therefore are described below and will focus on the second decompression
Valve 302.With reference to figure 4, the second pressure reducing valve 302 includes the first valve housing 311 and the second valve housing 312.First valve chest 311
With multistage cylindrical interior space, both ends are open.Second valve chest 312 has multistage cylindrical interior space, one
End is bottom, another end opening.
Second extrusion casting die 36 includes elastic component 351 (it is diaphragm), support element 352, fastening part 353 and press section
Divide 354.Plate-like with through-hole centered on elastic component 351.The outer peripheral portion of elastic component 351 is connected to equal pressure shell body 31.Bullet
Property part 351 include disc-shaped foot part 351A and protrusion 351B.Protrusion 351B is arranged about base portion 351A
Periphery and so that 34 increased side of pilot gas room is projected upwards.Base portion 351A be clipped in completely a pair of of support element 352 it
Between and by this support element 352 is supported.
Second equalizing valve bar 33 is arranged in the first valve chest 311.It is formed with through-hole 33A in second equalizing valve bar 33, is led to
Hole 33A one end opens extend towards the other end, and close to radial penetration at the other end.The end thereof contacts of second equalizing valve bar 33
Crimping section 354.The peripheral surface of 33 one end of the second equalizing valve bar relative to the first valve chest 311 one end by bearing portions
322 radial supports.Radially projecting bonding part 321 is fixed in the peripheral surface of second equalizing valve bar 33.Second equalizing valve
Bar 33 is arranged to move in the axial direction.
Second hard valve body 382 is hollow cylindrical.On axial direction between second hard valve body 382 and bonding part 321
It is formed with specified gap T.Second equalizing valve bar 33 is inserted through the second hard valve body 382.Second hard valve body 382 includes taper table
The overall diameter of face 382A, conical surface 382A reduce towards one end.Second hard valve body 382 and the second equalizing valve bar 33 pass through O shapes
Ring 42 offsets sealing each other.Second hard valve body 382 is arranged in the axial direction move relative to the second equalizing valve bar 33.The
Two hard valve bodies 382 are arranged so that it can realize that the conical surface 382A of the second hard valve body 382 connects each other with the first valve chest 311
The state touched and do not contacted each other.
The other end of first valve chest 311 is equipped with valve seat 43.Valve seat 43 is annular.Valve seat 43 is arranged to be clipped in the first valve casing
Between body 311 and the second valve chest 312.Valve seat 43 contacts one end of helical spring 41.Another end in contact of helical spring 41
Two hard valve bodies 382.
Second soft valve body 381 is annular.Second equalizing valve bar 33 is inserted through the second soft valve body 381.Second soft valve body
381 are configured to the opposite surface in the surface contacted with helical spring 41 of contact valve seat 43.Cylinder shape valve fastening part
44 are disposed over the peripheral surface of the second soft valve body 381.Second soft valve body 381 can be with the second equalizing valve bar 33 integrally in axis
It is moved on direction.
O-ring 47 is equipped between the peripheral surface of second equalizing valve bar, 33 other end and the second valve chest 312.First fastening
Part 46 and the second fastening part 48 (each is annular) are arranged to O-ring 47 being axially clipped in therebetween.First is tight
Gu part 46 contacts one end of helical spring 45.Another end in contact valve body fastening part 44 of helical spring 45.
Further, with reference to figure 3, the following terms is both formed in equal pressure shell body 31：First gas A passes through the of its inflow
First gas passing away 31B that one gas flow channel 31A, first gas exhaust through, connection first gas flow into logical
The second gas that first gas intermediate channel 31C, the second gas B of road 31A and first gas passing away 31B passes through its inflow
The second gas passing away 31E that flow channel 31D, second gas B are exhausted through, and connection second gas flow channel
The second gas intermediate channel 31F of D and second gas passing away E.First soft valve body 371 is arranged in first gas flow channel
Junction between 31A and first gas intermediate channel 31C.First hard valve body 372 setting first gas intermediate channel 31C with
Junction between first gas passing away 31B.Second soft valve body 381 is arranged in second gas flow channel 31D and second
Junction between gas intermediate channel 31F.Second hard valve body 382 is arranged in second gas intermediate channel 31F and second gas
Junction between passing away 31E.
With reference to figure 1, mixing section 5 includes mixture ratio regulator 53 and merging container 51.Merge container 51 and is connected to first
Gas passage 51A and second gas channel 51B, and with merge room 52, merge room 52 perpendicular to first gas A and the second gas
The area of section of the flow direction of body B is more than the area of section of first gas passage 51A and second gas channel 51B.First gas
The direction that body A is expelled to merging container 51 from first gas passage 51A is discharged along second gas B from second gas channel 51B
To the direction (more specifically, consistent with the direction) for merging container 51.
The operation of gas mixer 1 will now be described.First, start guide's pressure reducing valve 2.With reference to figure 2, adjusted by rotating
Part 211B makes adjustment axis 211C move in the axial direction, to compress guide's spring 251 in the axial direction elder generation is arranged
Pilot power.
Referring to figs. 2 and 5, via second pipe 92 and the 5th pipeline 95 second gas B is provided to guide's flow channel 27
(for example, carbon dioxide).In the case that pressure in the 21B of second pressure space is higher than set pilot pressure, pilot valve is closed
Body 26, on the other hand, referring to figs. 2 and 6, when the pressure in the 21B of second pressure space gets lower than set pilot pressure, first
Leading extrusion 25 makes guide's valve rod 22 be moved in the axial direction towards 24 side of guide's sealing element.This can be in guide valve blocks 26 and second
Gap S is formed between guide's shell 23.Gas flows into second pressure space 21B from the gap S being thusly-formed.Therefore, the second pressure
Pressure in the 21B of power space is adjusted to set pressure or pilot pressure.With reference to figure 1, from the guide of the discharge of guide's pressure reducing valve 2
Gas flows into pilot gas room 34 by the 6th pipeline 96.Therefore, the pressure of pilot gas room 34 is adjusted to pilot pressure.
With reference to figure 1, Fig. 4 and Fig. 7, first gas A (for example, argon gas) is provided to equalizing valve 3 via first pipe 91.Via
Second pipe 92 provides second gas B (for example, carbon dioxide) to equalizing valve 3.The pressure tune of second gas B explained below
Section.The pressure of first gas A is decreased to by mechanism similar with the mechanism for second gas B equal with second gas B
Level.Therefore descriptions thereof will be omitted.The case where pressure in second gas passing away 31E is higher than pilot pressure
Under, the second hard valve body 382 and the second soft valve body 381 are turned off.On the other hand, with reference to figure 4 and Fig. 8, when second gas is discharged
When pressure in the 31E of channel gets lower than pilot pressure, the second extrusion casting die 36 makes the second equalizing valve bar 33 in the axial direction
On towards the second valve chest 312 bottom side move.At this point, the second equalizing valve bar 33 move up in the axial direction alone it is dynamic, until second
The bonding part 321 of equalizing valve bar 33 is contacted with the second hard valve body 382.This makes the second soft valve body 381 and the second equalizing valve bar
33 integrally move towards the bottom side of the second valve chest 312 in the axial direction.Therefore, between the second soft valve body 381 and valve seat 43
Form gap U.Gap U opens the connection between second gas flow channel 31D and second gas intermediate channel 31F.
With reference to figure 4 and Fig. 9, hereafter, the bonding part 321 of the second equalizing valve bar 33 and the second hard valve body contact, and second
382 and second equalizing valve bar 33 of hard valve body is integrally moved towards the bottom side of the second valve chest 312.This second hard valve body 382 with
Gap P is formd between first valve chest 311.By gap P, second gas intermediate channel 31F and second gas passing away
31E communicates with each other.Therefore, pressure is decreased to the second gas B of required pressure and is provided to mixing section via the 4th pipeline 94
5。
Then, in mixing section 5, second gas B is mixed with first gas A, the pressure of first gas A by with for
The similar mechanism of mechanism of second gas B is decreased to equal pressure.Specifically, in mixture ratio regulator 53, by flow velocity tune
It saves into and first gas A and second gas B is mixed with required mixing ratio, and gas is merging merging in container 51, becomes mixed
Close gas.Hereafter, the flow velocity of mixed gas is adjusted using flow rate regulating valve 6, and gained mixed gas is supplied to and is provided it
The object of gas.
Herein, in the gas mixer of the present embodiment 1, in guide's pressure reducing valve 2, guide's sealing element 24 is fixed to elder generation
Lead shell 21.The construction enables guide's shell 21 to support corresponding to the pressure between third pressure space and first pressure space
The power of difference, the power act on guide's sealing element 24.This make without to guide's valve rod 22 apply correspond to third pressure space with
The power of pressure difference between first pressure space.Therefore, guide's valve rod 22 becomes no sound to the pressure change in second pressure space
The range answered narrows, to improve the response of guide's pressure reducing valve 2.
Further, in equalizing valve 3, make the second hard valve body 382 being mounted on the second equalizing valve bar 33 in axial side
Upwards move back and forth to open and close the connection between second gas intermediate channel 31F and second gas passing away 31E, from
And make it possible to steadily to control from second gas flow channel 31D flow to second gas passing away 31E gas it is small
Flow velocity.Further, when be fixed to the second equalizing valve bar 33 the second soft valve body 381 close second gas intermediate channel 31F with
When gap between second gas flow channel 31D, the connection with second gas passing away 31E is close by the second soft valve body 381
Envelope, therefore stably kept the tight shut-off shape between second gas flow channel 31D and second gas passing away 31E
State.Thereby it can be assured that not only having controlled small gas flow rate but also having controlled reliable sealing state.
Further, the base portion 351A of the elastic component 351 in equalizing valve 3 is supported by support element 352, entire base portion
Divide on support element.The construction allows to pilot pressure being transferred to the second equalizing valve bar 33, while preventing elastic component 351 from sending out
Raw elastic loss.
Further, the merging container 51 in mixing section 5 have merge room 52, merge room 52 perpendicular to first gas
The area of section of the flow direction of A and second gas B is more than the section face of first gas passage 51A and second gas channel 51B
Product.The construction makes it possible to uniformly mix first gas A and second gas B, and it is high to mix accuracy.
In addition, first gas A from first gas passage 51A be expelled to merge container 51 direction along second gas B from
Second gas channel 51B is expelled to the direction for merging container 51.The construction prevents mixing accuracy to reduce, from 3 row of equalizing valve
The collision of the first gas A and second gas B that go out can cause to mix accuracy reduction.
Industrial applicibility
Gas mixer according to the present invention can be particularly advantageous applied to need the gas mixer of high responsiveness.
Reference numeral describes
1：Gas mixer；2：Guide's pressure reducing valve；21：Guide's shell；211：First external frame；211B：Adjust part；
211C：Adjustment axis；211D：First support section；212：Second external frame；212B：Bottom；21A：First pressure space；
21B：Second pressure space；21C：Third pressure space；21D：Guide inner space；22：Guide's valve rod；22A：Through-hole；23：The
Two guide's shells；231：O-ring；232：Bearing portions；23A：Shell channel；24：Guide's sealing element；241：First sealing fastening
Part；242：O-ring；243：Second sealing fastening part；25：Guide's extrusion；251：Guide's spring；252：Diaphragm；252A：
Protrusion；253：Support section；254：Crimping section；26：Guide valve blocks；261：Valve body fastening part；262：Helical spring；
27：Guide's flow channel；28：Guide's flow pass；3：Equalizing valve；301：First pressure reducing valve；302：Second pressure reducing valve；31：
Pressure shell body；311：First valve chest；312：Second valve chest；31A：First gas flow channel；31B：First gas discharge is logical
Road；31C：First gas intermediate channel；31D：Second gas flow channel；31E：Second gas passing away；31F：Second gas
Body intermediate channel；32：First equalizing valve bar；321：Bonding part；322：Bearing portions；33：Second equalizing valve bar；33A：It is logical
Hole；34：Pilot gas room；35：First extrudes casting die；351：Elastic component；351A：Base portion；351B：Protrusion；
352：Support element；353：Fastening part；354：Crimping section；36：Second extrudes casting die；371：First soft valve body；372：The
One hard valve body；381：Second soft valve body；382：Second hard valve body；382A：Conical surface；41：Helical spring；43：Valve seat；44：
Valve body fastening part；46：Fastening part；47：O-ring；48：Fastening part；5：Mixing section；51：Merge container；51A：First
Gas passage；51B：Second gas channel；52：Merge room；53：Mixture ratio regulator；6：Flow rate regulating valve；91：First pipe；
92：Second pipe；93：Third pipeline；94：4th pipeline；95：5th pipeline；96：6th pipeline；97：7th pipeline；98：The
Eight pipelines；99：9th pipeline；A：First gas；B：Second gas.
Claims (5)
1. a kind of gas mixer, including：
Guide's pressure reducing valve, the pressure that guide's pressure reducing valve is configured to the pilot gas that will enter are decreased to pilot pressure and are discharged
Gained gas；
Equalizing valve, the equalizing valve is connected to guide's pressure reducing valve, and the equalizing valve is configured to, and is based on from the guide
The pilot pressure of the pilot gas of pressure reducing valve discharge, the pressure of the first gas of introducing and second gas is decreased to
Simultaneously gained gas is discharged in equal pressure；And
Mixing section, the mixing section are configured to receive and mix the first gas being discharged from the equalizing valve and described
Second gas, and gained gas is discharged；Wherein
Guide's pressure reducing valve includes：
Guide's shell,
Guide's valve rod, guide's valve rod are arranged in guide's shell and can move back and forth in the axial direction,
Second guide's shell, the second guide shell are arranged in guide's shell and are fixed to guide's shell,
Guide's sealing element, guide's sealing element be arranged to in the outer surface of guide's valve rod and guide's shell
Surface is contacted to keep the airtight conditions between guide's valve rod and guide's shell,
Guide's extrusion, guide's extrusion are arranged to and guide's valve stem contacts and are configured to squeeze in the axial direction
Guide's valve rod, and
Guide valve blocks, the guide valve blocks are mounted on guide's valve rod,
Guide's valve rod realizes the guide valve blocks and the second guide shell by being moved back and forth on the axial direction
The state that the state and the guide valve blocks that body is in contact with each other are separated from each other with the second guide shell,
Guide's flow channel and guide's flow pass are formed in guide's shell, the pilot gas passes through the pilot flow
Enter channel to flow into guide's shell, the pilot gas that pressure is decreased to the pilot pressure is flowed out by the guide
Channel is flowed out in guide's shell,
In the state that the guide valve blocks and the second guide shell are in contact with each other, it is formed in guide's shell：
First pressure space, the first pressure space is by guide's valve rod, guide's shell and the second guide shell
Body surrounds, and the first pressure space is connected to guide's flow channel,
Second pressure space, the second pressure space be arranged the guide valve blocks with residing for the first pressure space
The opposite side in side, and the second pressure space is connected to guide's flow pass, and
Third pressure space, the third pressure space be arranged guide's sealing element with residing for the first pressure space
The opposite side in side, and end thereof contacts of the third pressure space and guide's valve rod,
The third pressure space is connected to the second pressure space, and
Guide's sealing element is fixed to guide's shell.
2. gas mixer according to claim 1, wherein
The equalizing valve includes：
Equal pressure shell body,
First equalizing valve bar, the first equalizing valve bar is arranged in the equal pressure shell body and on the axial direction can be past
Multiple movement,
Second equalizing valve bar, the second equalizing valve bar is arranged in the equal pressure shell body and on the axial direction can be past
Multiple movement,
First extrudes casting die, and the described first extrusion casting die is arranged in the equal pressure shell body and constitutes the wall of pilot gas room
The part on surface, the pilot gas room are to be connected to the space of guide's pressure reducing valve, and the described first extrusion is pressed
Part is configured to contact the first equalizing valve bar and squeezes the first equalizing valve bar in the axial direction,
Second extrudes casting die, and the described second extrusion casting die is arranged in the equal pressure shell body and constitutes the pilot gas room
Wall surface another part, and described second extrusion casting die be configured to contact the second equalizing valve bar and in axial side
The upward second equalizing valve bar,
First soft valve body, the first soft valve body are mounted on the first equalizing valve bar,
Second soft valve body, the second soft valve body are mounted on the second equalizing valve bar,
First hard valve body, the first hard valve body are arranged to axially move back and forth relative to the first equalizing valve bar, with
And
Second hard valve body, the second hard valve body are arranged to axially move back and forth relative to the second equalizing valve bar,
It is formed in the equal pressure shell body：
First gas flow channel, the first gas are flowed by the first gas flow channel,
First gas passing away, the first gas are discharged by the first gas passing away,
First gas intermediate channel, the first gas intermediate channel connect the first gas flow channel and first gas
Body passing away,
Second gas flow channel, the second gas are flowed by the second gas flow channel,
Second gas passing away, the second gas are discharged by the second gas passing away, and
Second gas intermediate channel, the second gas intermediate channel connect the second gas flow channel and second gas
Body passing away,
The connection between the first gas flow channel and the first gas intermediate channel is arranged in the first soft valve body
Place,
The connection between the first gas intermediate channel and the first gas passing away is arranged in the first hard valve body
Place,
The connection between the second gas flow channel and the second gas intermediate channel is arranged in the second soft valve body
Place, and
The connection between the second gas intermediate channel and the second gas passing away is arranged in the second hard valve body
Place.
3. gas mixer according to claim 2, wherein
Described first extrude casting die and described second extrusion casting die each include：
Elastic component, and
Support element, the support element are made higher than the material of the rigidity of the elastic component of rigidity and are configured to support the elasticity
Part,
The elastic component includes：
Base portion with plate-like, and
Protrusion, the protrusion are arranged about the periphery of the base portion and the pilot gas room are made to increase
Side project upwards, and
The base portion is by the supports support, and the entire base portion is on the support element.
4. gas mixer according to any one of claims 1 to 3, wherein the mixing section includes：
Mixture ratio regulator, the mixture ratio regulator are configured to adjust the first gas being discharged from the equalizing valve and institute
The mixing ratio of second gas is stated, and by the first gas being discharged from the equalizing valve and the second gas respectively from first
Gas passage and the discharge of second gas channel, and
Merge container, the merging container is connected to the first gas passage and the second gas channel, and the conjunction
And container has merging room, the section perpendicular to the flow direction of the first gas and the second gas for merging room
Area is more than the area of section of the first gas passage and the second gas channel.
5. gas mixer according to claim 4, wherein the first gas is expelled to from the first gas passage
The direction for merging container is expelled to the direction for merging container along the second gas from the second gas channel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/081164 WO2018073945A1 (en) | 2016-10-20 | 2016-10-20 | Gas mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108348877A true CN108348877A (en) | 2018-07-31 |
| CN108348877B CN108348877B (en) | 2020-11-03 |
Family
ID=58666495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680028757.9A Expired - Fee Related CN108348877B (en) | 2016-10-20 | 2016-10-20 | Gas mixer |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6121083B1 (en) |
| CN (1) | CN108348877B (en) |
| MY (1) | MY192058A (en) |
| WO (1) | WO2018073945A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339299A (en) * | 2020-09-25 | 2021-02-09 | 华南理工大学 | Multi-layer co-extrusion continuous forming method and equipment for composite material with extreme rheological behavior |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033461A1 (en) * | 2000-09-18 | 2002-03-21 | Smc Corporation | Pilot-type two-port vacuum valve |
| US20070095401A1 (en) * | 2005-10-21 | 2007-05-03 | Energy Equipment Corporation | Device, Method and Apparatus |
| WO2012112808A2 (en) * | 2011-02-16 | 2012-08-23 | Tyco Fire Products Lp | Dry pilot actuator |
| CN203431245U (en) * | 2013-03-14 | 2014-02-12 | 伊顿公司 | Electromagnetic valve assembly with a pilot pressure control device |
| CN104048070A (en) * | 2013-03-14 | 2014-09-17 | 伊顿公司 | Electromagnetic valve assembly with pilot pressure control device |
| CN104373605A (en) * | 2014-10-16 | 2015-02-25 | 中国工程物理研究院化工材料研究所 | Ultrahigh pressure proportional pressure relief valve |
| CN204345010U (en) * | 2014-12-02 | 2015-05-20 | 费斯托（中国）自动化制造有限公司 | Guide's overflow-type reduction valve |
| CN205479649U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Main valve guide device in decompression gas circuit |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52109084A (en) * | 1976-03-08 | 1977-09-12 | Toho Gasu Kougiyou Kk | Electromagnetically actuated three stage operational vacuum driving apparatus |
| JPS5786913A (en) * | 1980-11-19 | 1982-05-31 | Matsushita Electric Ind Co Ltd | Pressure control valve |
| JPH0716594B2 (en) * | 1989-09-21 | 1995-03-01 | 株式会社日立製作所 | Gas mixing equipment |
| JPH03156618A (en) * | 1989-11-15 | 1991-07-04 | Tlv Co Ltd | Reducing valve |
| JP2561311Y2 (en) * | 1992-03-16 | 1998-01-28 | 伊藤工機株式会社 | Pressure proportional control valve |
| JP2006349030A (en) * | 2005-06-15 | 2006-12-28 | Sanyuu Technology:Kk | Two-way delivery valve |
| US8136545B2 (en) * | 2008-05-20 | 2012-03-20 | Emerson Process Management Regulator Technologies, Inc. | Apparatus to regulate fluid flow |
-
2016
- 2016-10-20 JP JP2017506815A patent/JP6121083B1/en not_active Expired - Fee Related
- 2016-10-20 WO PCT/JP2016/081164 patent/WO2018073945A1/en active Application Filing
- 2016-10-20 MY MYPI2017704433A patent/MY192058A/en unknown
- 2016-10-20 CN CN201680028757.9A patent/CN108348877B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020033461A1 (en) * | 2000-09-18 | 2002-03-21 | Smc Corporation | Pilot-type two-port vacuum valve |
| US20070095401A1 (en) * | 2005-10-21 | 2007-05-03 | Energy Equipment Corporation | Device, Method and Apparatus |
| WO2012112808A2 (en) * | 2011-02-16 | 2012-08-23 | Tyco Fire Products Lp | Dry pilot actuator |
| CN203431245U (en) * | 2013-03-14 | 2014-02-12 | 伊顿公司 | Electromagnetic valve assembly with a pilot pressure control device |
| CN104048070A (en) * | 2013-03-14 | 2014-09-17 | 伊顿公司 | Electromagnetic valve assembly with pilot pressure control device |
| CN104373605A (en) * | 2014-10-16 | 2015-02-25 | 中国工程物理研究院化工材料研究所 | Ultrahigh pressure proportional pressure relief valve |
| CN204345010U (en) * | 2014-12-02 | 2015-05-20 | 费斯托（中国）自动化制造有限公司 | Guide's overflow-type reduction valve |
| CN205479649U (en) * | 2016-04-01 | 2016-08-17 | 成都科盛石油科技有限公司 | Main valve guide device in decompression gas circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339299A (en) * | 2020-09-25 | 2021-02-09 | 华南理工大学 | Multi-layer co-extrusion continuous forming method and equipment for composite material with extreme rheological behavior |
| CN112339299B (en) * | 2020-09-25 | 2022-01-18 | 华南理工大学 | Multi-layer co-extrusion continuous forming method and equipment for composite material with extreme rheological behavior |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2018073945A1 (en) | 2018-10-18 |
| WO2018073945A1 (en) | 2018-04-26 |
| MY192058A (en) | 2022-07-25 |
| CN108348877B (en) | 2020-11-03 |
| JP6121083B1 (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103807219B (en) | With the valve cage in zero dead zone between noise-reducing components and high flow capacity component | |
| US7878479B2 (en) | Adjustment valve | |
| CN103148225B (en) | Be particularly useful for the distributing valve that break-make is in the fluid of high pressure | |
| CN105009016B (en) | Thermostatic cartridge for controlling hot and cold fluids to be mixed | |
| JP5528805B2 (en) | Valve assembly | |
| CN101370596B (en) | Squeeze foamer | |
| KR20180108401A (en) | Flow control valve | |
| RU2009140184A (en) | REGULATOR WITH INCREASED EFFICIENCY OF GAS FLOW | |
| JPH02225887A (en) | Valve | |
| KR20090080474A (en) | Constant flow rate valve | |
| CN107850906B (en) | Thermostatic valve body for controlling mixing of hot and cold fluids | |
| CA2351967C (en) | Compressed gas regulator and flowmeter | |
| CN1325828C (en) | Roll diaphragm control valve | |
| JP2015513049A (en) | Decompressor | |
| SA07280471B1 (en) | Improved Flow for Port Guided Globe Valve | |
| JP6769840B2 (en) | Pressure reducing valve device | |
| JP2017129212A (en) | Flow regulating valve | |
| CN108348877A (en) | Gas mixer | |
| US8534642B2 (en) | Seal member for fluid transfer system | |
| CN105987208B (en) | Pressure reducing valve | |
| US20060192159A1 (en) | Pinch valve | |
| CN1422398A (en) | Thermostatic valve for sanitary fixtures | |
| US9062781B2 (en) | Seal disk assembly for a fluid regulator | |
| JP7197132B2 (en) | regulator | |
| CN204213431U (en) | Micro flow control valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1253707 Country of ref document: HK |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |