CN103644322B - Pulse valve device - Google Patents
Pulse valve device Download PDFInfo
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- CN103644322B CN103644322B CN201310627303.1A CN201310627303A CN103644322B CN 103644322 B CN103644322 B CN 103644322B CN 201310627303 A CN201310627303 A CN 201310627303A CN 103644322 B CN103644322 B CN 103644322B
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- metal bellows
- chamber
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 109
- 239000002184 metal Substances 0.000 claims abstract description 109
- 238000007789 sealing Methods 0.000 claims abstract description 89
- 241001633942 Dais Species 0.000 claims description 32
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000000630 rising Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000010926 purge Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 210000004907 Glands Anatomy 0.000 description 3
- 210000001215 Vagina Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 210000001367 Arteries Anatomy 0.000 description 2
- 210000003462 Veins Anatomy 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
The invention discloses the pulse valve device that can solve the problem that diaphragm life-span the best problem.The feature of the pulse valve device of the application is that elastic sealing device includes the first metal bellows, the positioning end of the first metal bellows is sealingly mounted between valve body and valve gap, telescopic end is positioned at above valve port, being provided with on the outer face of the telescopic end of the first metal bellows and carry out with valve port sealing the metallic gasket coordinated, the inner chamber of the first metal bellows is turned on described rear air cavity by the opening being positioned on the first metal bellows location end face；Upper elastic sealing device includes the second metal bellows, the positioning end of the second metal bellows is sealingly mounted between valve gap and guide's valve seat, telescopic end is positioned at above exhaust chamber and makes described inlet plenum and exhaust chamber block or conducting by stretching motion, and the inner chamber of the second metal bellows is turned on described upper chamber by the opening being positioned on the second metal bellows location end face.The pulse valve device of the application well solves diaphragm life-span the best problem.
Description
Technical field
The present invention relates to pulse valve device.
Background technology
The filter collector (such as sack cleaner, sintered porous membrane filtration cleaner unit) of industrial use is typically fitted with instead
Blowing-out apparatus for ash, reaches to a certain degree when the amount of dust adhered on filter element during filtration, it is necessary to start back-blowing dust removing device to filter element
Carry out pulse backblowing deashing, make the dust on filter element depart from, thus reach the reusable purpose of filter element.Pulse valve is that blowback is clear
Key components in apparatus for ash, are to control the terminal unit that blowback air starts and closes.
The filter collector deashing pulse valve that applicant uses at present includes the valve body being made up of valve body and valve gap, valve body and valve gap
Between equipped with the dynamic diaphragm that can move forward and backward, be provided with the valve port can closed by the dynamic diaphragm being in forwardly moved position in valve body, this moves
Diaphragm by between dynamic diaphragm and valve gap spring keep and and valve body between is formed before air cavity, between dynamic diaphragm and valve gap formation
Rear air cavity, via the gas port connection being arranged in valve body between described front air cavity and rear air cavity, the top of valve gap can equipped with the
Movable upper dynamic diaphragm, is positioned at the lower section of dynamic diaphragm on this and is provided with and can be hindered by the upper dynamic diaphragm being in forwardly moved position in valve gap
Disconnected inlet plenum and exhaust chamber, described inlet plenum turns on rear air cavity, and exhaust chamber turns on the steam vent of valve gap sidepiece, valve gap
Top is provided with guide's valve seat, and upper dynamic diaphragm is arranged between this guide's valve seat and valve gap and by being positioned at upper dynamic diaphragm and guide
Spring between valve seat is kept, and the bottom of guide's valve seat is provided with the return chamber suitable with upper dynamic diaphragm, when upper dynamic diaphragm to
When moving after return chamber, inlet plenum and exhaust chamber conducting, this return chamber is by the elder generation being positioned in guide's valve seat, valve gap and connect
Guide hole and described rear air cavity turn on, the upper end of guide's valve seat be provided with one for the electromagnetic valve controlling return chamber vent, work as electricity
After magnet valve starts, the exhaust passage on guide's valve seat is discharged by the gas in return chamber.The work process of above-mentioned pulse valve is:
The purge gas of the air inlet coming from valve body entered by gas port after air cavity and inlet plenum, and by pilot hole enter return chamber
Room, meanwhile, purge gas enter before air cavity, at this moment, no matter dynamic diaphragm or upper dynamic diaphragm, owing to their both sides air pressure is put down
Weighing apparatus, be the most all in forwardly moved position under the effect of respective spring, at this moment, dynamic diaphragm closing valve port, upper dynamic diaphragm block into
Air chamber and exhaust chamber；When blowback to be carried out, start electromagnetic valve, the exhaust passage from guide's valve seat of the gas in return chamber
Discharging, return chamber instantaneous loss of pressure, upper dynamic diaphragm overcomes spring pressure to move after return chamber, makes inlet plenum and exhaust chamber conducting,
At this moment, the gas in rear air cavity is discharged from steam vent rapidly, causes rear air cavity decompression, and dynamic diaphragm overcomes spring pressure air cavity backward
Mobile, make dynamic diaphragm separate with valve port, purge gas sprays from valve port, finally acts on filter element.
In actual moving process inventor find, some occasion (such as, when high-temperature gas is carried out dust removal by filtration, for
Filter element is avoided to condense) need to use high-temperature gas to carry out blowback, at this moment, above-mentioned pulse valve easily produces its pilot valve seating portion
Damage of components and its use time longer rear dynamic diaphragm problem that sealing valve port is remarkably decreased.Send out after careful analysis
Existing: first, when using high-temperature gas to carry out blowback, high-temperature gas will enter return chamber by pilot hole, thus cause elder generation
The parts temperature of guide valve seat part is higher, thus causes rapid wear problem；Second, dynamic diaphragm includes that edge is arranged on valve body
Membrane body, the diaphragm lower platen doubling as sealing valve port part and diaphragm top board, membrane body is positioned on diaphragm lower platen and diaphragm
Between pressing plate and be threaded connection mechanism and connect as one with diaphragm lower platen and diaphragm top board, and diaphragm lower platen uses rubber
Glue is made, and uses elastomeric material just because of diaphragm lower platen, and the service life under its high temperature is short, thus causes valve port
Sealing problem.
For the problems referred to above, apply for the application for a patent for invention that October 31 have submitted entitled " pulse valve " 2013, its
Application No. 2013105287910.It proposes guide's valve seat (being referred to as " gland " in above-mentioned patent application)
Gas circuit and valve body are independent of one another, either control upper dynamic diaphragm reach to block inlet plenum and exhaust chamber to the input of return chamber
Control gas, or by return chamber control gas discharge so that after upper dynamic diaphragm move, all by with guide's valve seat blow vent
The electromagnetism-gas-driving valve connected realizes, and debouches controlling gas and can using relatively low gas (the such as room temperature nitrogen of temperature of return chamber
Gas), and high-temperature gas (such as high temperature blowback air) will not enter in return chamber, so, it becomes possible to it is effectively protected gland portion
The parts divided, reduce the seal point of gland part simultaneously, thus improve the applied at elevated temperature performance of pulse valve.Press under diaphragm
Plate uses elastomeric material to cause short problem in service life, proposes diaphragm lower platen and uses aluminium sheet.Although, the skill of this patent application
Art scheme improves the high-temperature working performance of pulse valve to a certain extent, but, diaphragm is still have employed due to it, and in coal system
When the industrial circles such as oil, coal gas, ferroalloy smelting carry out high temperature filtration (technology that applicant is currently being deployed), it is cleaned
The temperature of high-temperature gas often beyond 400 DEG C, the gas temperature of blowback also will be more than 300 DEG C, and diaphragm is at this kind of extreme bar
Part is the highest for lower service life, is to develop in high temperature air filtration technology at present to be suffered from a problem that.
Summary of the invention
The application aims to provide the pulse valve device that can solve the problem that diaphragm life-span the best problem.
A kind of pulse valve device of the application, it includes the valve body being made up of valve body and valve gap, equipped with can between valve body and valve gap
Movable elastic sealing device, is provided with the valve port can closed by the elastic sealing device being in forwardly moved position in valve body, should
Elastic sealing device by between elastic sealing device and valve gap spring keep and and valve body between is formed before air cavity, elasticity close
Air cavity after being formed between seal apparatus and valve gap, via the gas port connection being arranged in valve body between described front air cavity and rear air cavity,
The top of valve gap, equipped with the upper elastic sealing device that can move forward and backward, is positioned at the lower section of elastic sealing device on this and is provided with in valve gap
The inlet plenum that can be blocked by the upper elastic sealing device being in forwardly moved position and exhaust chamber, described inlet plenum turns on rear air cavity,
Exhaust chamber turns on the steam vent of valve gap sidepiece, and the top of valve gap is provided with guide's valve seat, and upper elastic sealing device is arranged on
Kept between this guide's valve seat and valve gap and by the spring between upper elastic sealing device and guide's valve seat, guide's valve seat
Bottom is provided with upper chamber, and when upper elastic sealing device moves after upper chamber, inlet plenum and exhaust chamber conducting, this upper chamber passes through
The pilot hole being positioned in guide's valve seat, valve gap and connect and described rear air cavity turn on, the top of guide's valve seat be provided with described on
The exhaust control device of chamber conducting, wherein, described elastic sealing device includes the first metal bellows, the first metal bellows
Positioning end be sealingly mounted between valve body and valve gap, telescopic end is positioned at above valve port, outside the telescopic end of the first metal bellows
Being provided with on end face and carry out with valve port sealing the metallic gasket coordinated, the inner chamber of the first metal bellows is by being positioned at the first metal
Opening on the end face of corrugated tube location turns on described rear air cavity；Described upper elastic sealing device includes the second metal bellows, the
The positioning end of two metal bellowss is sealingly mounted between valve gap and guide's valve seat, and telescopic end is positioned at above exhaust chamber and by flexible
Motion makes described inlet plenum and exhaust chamber block or conducting, and the inner chamber of the second metal bellows is fixed by being positioned at the second metal bellows
Opening on the end face of position turns on described upper chamber.
As the improvement to above-mentioned pulse valve device, described guide's valve seat is arranged on the top of valve gap, pilot valve by one liter of dais
Seat, rise dais and valve gap by connecting as one along guide's valve seat screw circumferentially, in liter dais, have receiving second gold medal
Belonging to the chamber of corrugated tube, the second metal bellows is positioned at this chamber, and the positioning end of the second metal bellows is sealingly mounted at rising
Seat and guide's valve seat between, described pilot hole through valve gap, rise dais connect after guide's valve seat upper chamber and after air cavity.By setting
Put a liter dais, make the positioning end of the second metal bellows be sealingly mounted between liter dais and guide's valve seat, the second metal bellows
Being positioned at a liter dais, so, it is relatively deep that the second metal bellows both will not sink to valve gap, also will not emit the upper chamber into guide's valve seat,
Therefore substantially need not the physical dimension of existing valve gap, guide's valve seat is adjusted.
Additionally, described exhaust control device is an electromagnetism-gas-driving valve, this electromagnetism-gas-driving valve at least has can be by the gas in upper chamber
The exhaust mode that body outwards discharges；Described guide's valve seat is connected with electromagnetism-gas-driving valve by middle air pipe, so that this electromagnetism gas
Dynamic valve is away from guide's valve seat.On this basis, described electromagnetism-gas-driving valve preferably also has input gas in upper chamber thus auxiliary
Help inlet plenum and the air inlet pattern of exhaust chamber, described air inlet pattern and the exhaust mode switchover operation of the second metal bellows blocking-up.
Make this electromagnetism-gas-driving valve away from guide's valve seat by middle air pipe, it is possible to decrease the ambient temperature of electromagnetism-gas-driving valve, make electromagnetic pneumatic
Valve can long-time stable work.
Present invention also provides another kind of pulse valve device, it include the valve body being made up of valve body and valve gap, valve body and valve gap it
Between equipped with the elastic sealing device that can move forward and backward, be provided with in valve body and can be closed by the elastic sealing device being in forwardly moved position
Valve port, this elastic sealing device by between elastic sealing device and valve gap spring keep and and valve body between formed before air cavity,
Air cavity after being formed between elastic sealing device and valve gap, via the inducing QI being arranged in valve body between described front air cavity and rear air cavity
Hole connects, and the top of valve gap, equipped with the upper elastic sealing device that can move forward and backward, is positioned at elastic sealing device on this in valve gap
Lower section is provided with the inlet plenum and exhaust chamber that can be blocked, described inlet plenum and rear gas by the upper elastic sealing device being in forwardly moved position
Chamber turns on, and exhaust chamber turns on the steam vent of valve gap sidepiece, and it is independent of each other with valve body that the top of valve gap is provided with a gas circuit
Guide's valve seat, upper elastic sealing device is arranged between this guide's valve seat and valve gap and by being positioned at upper elastic sealing device and pilot valve
Spring between Zuo is kept, and the bottom of guide's valve seat is provided with upper chamber, when upper elastic sealing device moves after upper chamber, enters
Air chamber and exhaust chamber conducting, the top of guide's valve seat is provided with the exhaust control device turned on described upper chamber, described aerofluxus control
Device processed is an electromagnetism-gas-driving valve, this electromagnetism-gas-driving valve have the exhaust mode that the gas in upper chamber outwards can be discharged and
In upper chamber, input gas thus help upper elastic sealing device to move forward and the inlet plenum that blocks and the air inlet pattern of exhaust chamber, institute
Stating air inlet pattern and exhaust mode switchover operation, wherein, described elastic sealing device includes the first metal bellows, the first metal
The positioning end of corrugated tube is sealingly mounted between valve body and valve gap, and telescopic end is positioned at above valve port, stretching of the first metal bellows
Being provided with on the outer face of end and carry out with valve port sealing the metallic gasket that coordinates, the inner chamber of the first metal bellows is by being positioned at the
Opening on one metal bellows location end face turns on described rear air cavity；Described upper elastic sealing device includes the second wavy metal
Pipe, the positioning end of the second metal bellows is sealingly mounted between valve gap and guide's valve seat, and telescopic end is positioned at above exhaust chamber and leads to
Crossing stretching motion makes described inlet plenum and exhaust chamber block or conducting, and the inner chamber of the second metal bellows is by being positioned at the second metal wave
Opening on the end face of stricture of vagina pipe location turns on described upper chamber.
As the improvement to this pulse valve device, described guide's valve seat is connected with electromagnetism-gas-driving valve by middle air pipe, thus
Make this electromagnetism-gas-driving valve away from guide's valve seat, so can reduce the ambient temperature of electromagnetism-gas-driving valve, when enabling electromagnetism-gas-driving valve long
Between steady operation.As improving further, described guide's valve seat is arranged on the top of valve gap by one liter of dais, guide's valve seat,
Rise dais and valve gap by connecting as one along guide's valve seat screw circumferentially, in liter dais, have receiving second metal wave
The chamber of stricture of vagina pipe, the second metal bellows is positioned at this chamber, the positioning end of the second metal bellows be sealingly mounted at liter dais with
Between guide's valve seat.By arranging this liter of dais, the positioning end of the second metal bellows is made to be sealingly mounted at liter dais and pilot valve
Between Zuo, the second metal bellows is positioned at a liter dais, and so, it is relatively deep, the most not that the second metal bellows both will not sink to valve gap
The upper chamber into guide's valve seat can be emitted, therefore substantially need not the physical dimension of existing valve gap, guide's valve seat is adjusted.
Both above pulse valve device is all to instead of existing dynamic diaphragm respectively with the first metal bellows and the second metal bellows
With upper dynamic diaphragm, and employ metallic gasket and seal with valve port, simultaneously according to the first metal bellows and the second metal wave
The specifically used situation of stricture of vagina pipe has carried out the structure designs such as the opening of the first metal bellows and the second metal bellows.By reality
Checking finds, the resistance to elevated temperatures of metal bellows is much better than diaphragm, and the life-span can reach more than 100,000 times, therefore the arteries and veins of the application
Rush valve gear and well solve diaphragm life-span the best problem.
Below in conjunction with the accompanying drawings will be with the detailed description of the invention aspect that the present invention is described further, the present invention adds and advantage
Giving out in the middle part of explained below, part will become apparent from the description below, or is recognized by the practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the pulse valve device of the embodiment of the present application 1.
Detailed description of the invention
As it is shown in figure 1, the pulse valve device of the embodiment of the present application 1 includes the valve body being made up of valve body 7 and valve gap 4, valve body
Equipped with the elastic sealing device 5 that can move forward and backward between 7 and valve gap 4, being provided with in valve body 7 can be by the elasticity being in forwardly moved position
The valve port 8 that sealing device 5 is closed, this elastic sealing device 5 is protected by the spring between elastic sealing device 5 and valve gap 4
Air cavity 6 before holding also and being formed between valve body 7, air cavity 12 after being formed between elastic sealing device 5 and valve gap 4, described front air cavity
Connecting via the gas port 13 being arranged in valve body between 6 and rear air cavity 12, the top of valve gap 4 can move forward and backward equipped with
Upper elastic sealing device 1, being positioned in valve gap 4 that the lower section of elastic sealing device 1 on this is provided with can be by being in forwardly moved position
The inlet plenum 2 of upper elastic sealing device 1 blocking-up and exhaust chamber 15, described inlet plenum 2 turns on rear air cavity 12, exhaust chamber 15
Turning on the steam vent 11 of valve gap 4 sidepiece, the top of valve gap 4 is provided with guide's valve seat 16, upper elastic sealing device 1
It is arranged between this guide's valve seat 16 and valve gap 4 and by the spring institute between upper elastic sealing device 1 and guide's valve seat 16
Keeping, the bottom of guide's valve seat 16 is provided with upper chamber 19, when upper elastic sealing device 1 moves after upper chamber 19, and inlet plenum
2 and exhaust chamber 15 turn on, this upper chamber 19 by the pilot hole 3 that is positioned in guide's valve seat 16, valve gap 4 and connect with described
Rear air cavity 12 turns on, and the top of guide's valve seat 16 is provided with and the exhaust control device 9 of described upper chamber 19 conducting, wherein,
Described elastic sealing device 5 includes that the first metal bellows 501, the positioning end of the first metal bellows 501 are sealingly mounted at valve
Between body 7 and valve gap 4, telescopic end is positioned at above valve port 8, and the outer face of the telescopic end of the first metal bellows 501 is installed
Having and carry out with valve port 8 sealing the metallic gasket 502 coordinated, metallic gasket 502 specifically uses aluminium sheet, the first wavy metal
The opening that the inner chamber of pipe 501 positions on end face by being positioned at the first metal bellows 501 turns on described rear air cavity 12；On described
Elastic sealing device 1 includes that the second metal bellows 101, the positioning end of the second metal bellows 101 are sealingly mounted at valve gap 4
And between guide's valve seat 16, telescopic end is positioned at above exhaust chamber 15 and makes described inlet plenum 2 and exhaust chamber 15 by stretching motion
Block or conducting, the opening that the inner chamber of the second metal bellows 101 positions on end face by being positioned at the second metal bellows 101 with
Described upper chamber 19 turns on.Additionally, described guide's valve seat 16 is arranged on the top of valve gap 4, pilot valve by one liter of dais 17
Seat 16, rise dais 17 and valve gap 4 by connecting as one along guide's valve seat 16 screw 18 circumferentially, rise dais 17
Inside having the chamber of receiving second metal bellows 101, the second metal bellows 101 is positioned at this chamber, the second wavy metal
The positioning end of pipe 101 is sealingly mounted between liter dais 17 and guide's valve seat 16, and described pilot hole 3 is through valve gap 4, liter dais
17 with connect upper chamber 19 and rear air cavity 12 after guide's valve seat 16.It addition, described exhaust control device 9 is an electromagnetic pneumatic
Valve 901, this electromagnetism-gas-driving valve 901 only has the exhaust mode that can be outwards discharged by the gas in upper chamber 19；Described pilot valve
Seat 16 is connected with electromagnetism-gas-driving valve 901, so that this electromagnetism-gas-driving valve 901 is away from guide's valve seat 16 by middle air pipe 10.
In order to improve the heat-sinking capability of middle air pipe 10, preferably protection electromagnetism-gas-driving valve 901, the outer surface of middle air pipe 10
Being provided with radiator structure, radiator structure both can be axially spaced multiple radiating grooves on the wall of middle air pipe 10, it is possible to
To be axially spaced multiple fin on the wall of middle air pipe 10, dissipating of middle air pipe 10 surface all can be improved
Hot side amasss, and plays the effect accelerating heat radiation.
Such as Fig. 1, the work process of the pulse valve device of embodiment 1 is: the purge gas of the air inlet 14 coming from valve body 7 leads to
Cross air cavity 12 and inlet plenum 2 after gas port 13 enters, and enter upper chamber 19(now electromagnetism-gas-driving valve 901 by pilot hole 3
Close), meanwhile, purge gas enter before air cavity 6, at this moment, no matter the first metal bellows 501 or the second metal bellows
101, due to the both sides air pressure balance up and down of their telescopic end, therefore its telescopic end is all in reach under the effect of respective spring
On position, at this moment, metallic gasket 502 closes valve port 8, and the telescopic end of the second metal bellows 101 blocks inlet plenum 2
With the upper port that the telescopic end of exhaust chamber 15(the second metal bellows 101 pushes down exhaust chamber 15 so that inlet plenum 2 and row
Air chamber 15 is blocked)；When blowback to be carried out, starting electromagnetism-gas-driving valve 901, the gas in upper chamber 19 is through middle air pipe
10 discharge rapidly from electromagnetism-gas-driving valve 901, upper chamber 19 instantaneous loss of pressure, and the telescopic end of the second metal bellows 101 overcomes bullet
Spring pressure, to upper chamber 19 direction contractile motion, makes inlet plenum 2 and exhaust chamber 15 turn on, at this moment, and the gas in rear air cavity 12
Discharging from steam vent 11 rapidly, cause rear air cavity 12 decompression, the telescopic end of the first metal bellows 501 i.e. overcomes spring pressure
Air cavity 12 moves backward, makes metallic gasket 502 separate with valve port 8, and purge gas sprays from valve port 8.Electromagnetism-gas-driving valve
901 close, and the telescopic end of the second metal bellows 101 stretches out (reach) again, between upper chamber 19 and inlet plenum 2, front
Air cavity 6 and rear air cavity 12 come back to air pressure balance state, and pulse valve device is closed.
The embodiment of the present application 2 pulse valve device, be on the basis of the pulse valve device of embodiment 1, by electromagnetism-gas-driving valve
901 change two three mouthfuls of electromagnetism-gas-driving valves into (includes the first port being connected with middle air pipe 10 exhaust end, for aerofluxus
The second port and the 3rd port that is connected with external gas source), at this moment, this electromagnetism-gas-driving valve 901 not only has can be by upper chamber
The exhaust mode (the first port and the conducting of the second port) that gas in 19 outwards discharges, also has input gas in upper chamber 19
Body thus assist second metal bellows 101 block inlet plenum 2 and air inlet pattern (the first port and the 3rd end of exhaust chamber 15
Mouth conducting), described air inlet pattern and exhaust mode switchover operation, and external gas source is (the most normal preferably with the gas that temperature is relatively low
Temperature nitrogen).Embodiment 2 the work process of pulse valve device substantially identical with the work process of embodiment 1, uniquely distinguish
Being when pulse valve device is closed, electromagnetism-gas-driving valve 901 takes air inlet pattern to be operated, and at this moment, external gas source passes through
Electromagnetism-gas-driving valve 901, middle air pipe 10 are passed through gas to upper chamber 19, thus assist stretching of the second metal bellows 101
Contracting end moves forward thus makes rapidly pulse valve device close.It addition, external gas source can also help stretching of the second metal bellows 101
The upper port of contracting side pressure close-up air chamber 15, improves the sealing of pulse valve device top pilot valve part；Further, external gas source is worked as
When using relatively low gas (the such as nitrogen at room) of temperature, it is possible to upper chamber 19 surrounding components is cooled, improve arteries and veins
Rush the service life of valve gear.
The pulse valve device of the embodiment of the present application 3 include the valve body being made up of valve body 7 and valve gap 4, valve body 7 and valve gap 4 it
Between equipped with the elastic sealing device 5 that can move forward and backward, being provided with in valve body 7 can be by the elastic sealing device 5 being in forwardly moved position
Close valve port 8, this elastic sealing device 5 by between elastic sealing device 5 and valve gap 4 spring keep and with valve body 7
Between formed before air cavity 6, between elastic sealing device 5 and valve gap 4 formed after air cavity 12, described front air cavity 6 and rear air cavity 12
Between connect via the gas port 13 being arranged in valve body, the top of valve gap 4 is equipped with the upper elastic packing dress that can move forward and backward
Putting 1, being positioned in valve gap 4 that the lower section of elastic sealing device 1 on this is provided with can be by the upper elastic sealing device 1 being in forwardly moved position
The inlet plenum 2 blocked and exhaust chamber 15, described inlet plenum 2 turns on rear air cavity 12, exhaust chamber 15 and the row of valve gap 4 sidepiece
Pore 11 turns on, and the top of valve gap 4 is provided with a gas circuit and valve body guide independent of each other valve seat 16, upper elastic packing
Device 1 is arranged between this guide's valve seat 16 and valve gap 4 and by between upper elastic sealing device 1 and guide's valve seat 16
Spring is kept, and the bottom of guide's valve seat 16 is provided with upper chamber 19, when upper elastic sealing device 1 moves after upper chamber 19,
Inlet plenum 2 and exhaust chamber 15 turn on, and the top of guide's valve seat 16 is provided with and the exhaust control device of described upper chamber 19 conducting
9, described exhaust control device 9 is an electromagnetism-gas-driving valve 901, and this electromagnetism-gas-driving valve 901 has can be by upper chamber 19
Exhaust mode that gas outwards discharges and input gas in upper chamber 19 thus help upper elastic sealing device 1 move forward and block
Inlet plenum 2 and the air inlet pattern of exhaust chamber 15, described air inlet pattern and exhaust mode switchover operation, wherein, described elasticity is close
Seal apparatus 5 includes that the first metal bellows 501, the positioning end of the first metal bellows 501 are sealingly mounted at valve body 7 and valve gap 4
Between, telescopic end is positioned at above valve port 8, the outer face of the telescopic end of the first metal bellows 501 is provided with and enters with valve port 8
Row seals the metallic gasket 502 coordinated, and metallic gasket 502 specifically uses aluminium sheet, the inner chamber of the first metal bellows 501
The opening positioning on end face by being positioned at the first metal bellows 501 turns on described rear air cavity 12；Described upper elastic sealing device
1 includes that the second metal bellows 101, the positioning end of the second metal bellows 101 are sealingly mounted at valve gap 4 and guide's valve seat 16
Between, telescopic end is positioned at above exhaust chamber 15 and makes described inlet plenum 2 and exhaust chamber 15 block or turn on by stretching motion,
The opening that the inner chamber of the second metal bellows 101 positions on end face by being positioned at the second metal bellows 101 and described upper chamber 19
Conducting.Additionally, described guide's valve seat 16 is arranged on the top of valve gap 4, guide's valve seat 16, liter dais by one liter of dais 17
17 and valve gap 4 by connecting as one along guide's valve seat 16 screw 18 circumferentially, have a receiving the in rising dais 17
The chamber of two metal bellowss 101, the second metal bellows 101 is positioned at this chamber, the location of the second metal bellows 101
End is sealingly mounted between liter dais 17 and guide's valve seat 16.It addition, described guide's valve seat 16 is again by middle air pipe
10 connect with electromagnetism-gas-driving valve 901, so that this electromagnetism-gas-driving valve 901 is away from guide's valve seat 16, and middle air pipe 10
Outer surface is provided with radiator structure.
With the difference of embodiment 2, embodiment 3 is that the pulse valve device of embodiment 3 eliminates pilot hole 3, therefore, rear air cavity
High-temperature gas in 12 can not enter in upper chamber 19 by original pilot hole 3 again, i.e. upper chamber 19 and the second gold medal
Belong to the gas in corrugated tube 101 inner chamber and completely isolated (the i.e. guide's valve seat of high temperature purge gas from valve body 7 air inlet 14
The gas circuit of 16 is independent of one another with the gas circuit of valve body), at this moment, the motion of the second metal bellows 101 telescopic end is completely by electricity
Magnetic pneumatic operated valve 901 controls, and when electromagnetism-gas-driving valve 901 is for exhaust mode, pulse valve device starts, high temperature purge gas
Entering from valve body 7 air inlet 14 and spray from valve port 8, when electromagnetism-gas-driving valve 901 is for air inlet pattern, pulse valve device is closed
Closing, the metallic gasket 502 on the first metal bellows 501 compresses valve port 8.The advantage of the pulse valve device of embodiment 3 exists
In, debouch the gas of upper chamber 19 and can use the relatively low gas (such as nitrogen at room) of temperature, and high temperature blowback air will not enter
Enter in upper chamber 19, so, it becomes possible to be effectively protected the parts around upper chamber 19, reduce the most again guide's valve seat 16
The seal point of part, improves the applied at elevated temperature performance of pulse valve device the most further.
Claims (8)
- null1. pulse valve device，It includes the valve body being made up of valve body (7) and valve gap (4)，Equipped with the elastic sealing device (5) that can move forward and backward between valve body (7) and valve gap (4)，The valve port (8) can closed it is provided with by the elastic sealing device (5) being in forwardly moved position in valve body (7)，This elastic sealing device (5) kept by the spring that is positioned between elastic sealing device (5) and valve gap (4) and and valve body (7) between forms front air cavity (6)，Air cavity (12) after being formed between elastic sealing device (5) and valve gap (4)，Via gas port (13) connection being arranged in valve body between described front air cavity (6) and rear air cavity (12)，The top of valve gap (4) is equipped with the upper elastic sealing device (1) that can move forward and backward，The lower section being positioned at elastic sealing device on this (1) in valve gap (4) is provided with the inlet plenum (2) and exhaust chamber (15) that can be blocked by the upper elastic sealing device (1) being in forwardly moved position，Described inlet plenum (2) turns on rear air cavity (12)，Exhaust chamber (15) turns on the steam vent (11) of valve gap (4) sidepiece，The top of valve gap (4) is provided with guide's valve seat (16)，Upper elastic sealing device (1) is arranged between this guide's valve seat (16) and valve gap (4) and is kept by the spring being positioned between upper elastic sealing device (1) and guide's valve seat (16)，The bottom of guide's valve seat (16) is provided with upper chamber (19)，When upper elastic sealing device (1) moves afterwards to upper chamber (19)，Inlet plenum (2) and exhaust chamber (15) conducting，This upper chamber (19) is by being positioned at guide's valve seat (16)、In valve gap (4) and pilot hole (3) and the described rear air cavity (12) of connection turns on，The top of guide's valve seat (16) is provided with the exhaust control device (9) turned on described upper chamber (19)，It is characterized in that: described elastic sealing device (5) includes the first metal bellows (501)，The positioning end of the first metal bellows (501) is sealingly mounted between valve body (7) and valve gap (4)，Telescopic end is positioned at valve port (8) top，It is provided with on the outer face of the telescopic end of the first metal bellows (501) and carries out with valve port (8) sealing the metallic gasket (502) coordinated，The inner chamber of the first metal bellows (501) is turned on described rear air cavity (12) by the opening being positioned on the end face of the first metal bellows (501) location；Described upper elastic sealing device (1) includes the second metal bellows (101), the positioning end of the second metal bellows (101) is sealingly mounted between valve gap (4) and guide's valve seat (16), telescopic end is positioned at exhaust chamber (15) top and makes described inlet plenum (2) and exhaust chamber (15) block or turn on by stretching motion, and the inner chamber of the second metal bellows (101) is turned on described upper chamber (19) by the opening being positioned on the end face of the second metal bellows (101) location；Described exhaust control device (9) is an electromagnetism-gas-driving valve (901), and this electromagnetism-gas-driving valve (901) has the exhaust mode that can be outwards discharged by the gas in upper chamber (19)；Described guide's valve seat (16) is connected with electromagnetism-gas-driving valve (901), so that this electromagnetism-gas-driving valve (901) is away from guide's valve seat (16) by middle air pipe (10)；Described electromagnetism-gas-driving valve (901) also has input gas in upper chamber (19) thus assists the second metal bellows (101) to block inlet plenum (2) and the air inlet pattern of exhaust chamber (15), described air inlet pattern and exhaust mode switchover operation；The temperature of the gas of air cavity (12) and inlet plenum (2) after being entered it is less than by gas port (13) by electromagnetism-gas-driving valve (901) temperature of input gas in upper chamber (19)；Described electromagnetism-gas-driving valve (901) is two three mouthfuls of electromagnetism-gas-driving valves, this electromagnetism-gas-driving valve includes the first port being connected with middle air pipe (10) exhaust end, for the second port of aerofluxus and the 3rd port that is connected with external gas source, when the first port and the second port turn on, electromagnetism-gas-driving valve (901) is in the exhaust mode outwards discharged by the gas in upper chamber (19), when the first port and the 3rd port turn on, electromagnetism-gas-driving valve (901) is in the inlet plenum (2) and the air inlet pattern of exhaust chamber (15) making external gas source input gas in upper chamber (19) thus to assist the second metal bellows (101) to block.
- 2. pulse valve device as claimed in claim 1, it is characterized in that: described guide's valve seat (16) is arranged on the top of valve gap (4) by one liter of dais (17), guide's valve seat (16), rise dais (17) and valve gap (4) by connecting as one along guide's valve seat (16) screw (18) circumferentially, the chamber of a receiving the second metal bellows (101) is had in rising dais (17), second metal bellows (101) is positioned at this chamber, the positioning end of the second metal bellows (101) is sealingly mounted between a liter dais (17) and guide's valve seat (16), described pilot hole (3) is through valve gap (4), rise dais (17) and connect upper chamber (19) and rear air cavity (12) with guide's valve seat (16) afterwards.
- 3. pulse valve device as claimed in claim 1, it is characterised in that: the outer surface of described middle air pipe (10) is provided with radiator structure.
- 4. pulse valve device as claimed in claim 1, it is characterised in that: described metallic gasket (502) uses aluminium sheet.
- null5. pulse valve device，It includes the valve body being made up of valve body (7) and valve gap (4)，Equipped with the elastic sealing device (5) that can move forward and backward between valve body (7) and valve gap (4)，The valve port (8) can closed it is provided with by the elastic sealing device (5) being in forwardly moved position in valve body (7)，This elastic sealing device (5) kept by the spring that is positioned between elastic sealing device (5) and valve gap (4) and and valve body (7) between forms front air cavity (6)，Air cavity (12) after being formed between elastic sealing device (5) and valve gap (4)，Via gas port (13) connection being arranged in valve body between described front air cavity (6) and rear air cavity (12)，The top of valve gap (4) is equipped with the upper elastic sealing device (1) that can move forward and backward，The lower section being positioned at elastic sealing device on this (1) in valve gap (4) is provided with the inlet plenum (2) and exhaust chamber (15) that can be blocked by the upper elastic sealing device (1) being in forwardly moved position，Described inlet plenum (2) turns on rear air cavity (12)，Exhaust chamber (15) turns on the steam vent (11) of valve gap (4) sidepiece，The top of valve gap (4) is provided with a gas circuit and valve body guide independent of each other valve seat (16)，Upper elastic sealing device (1) is arranged between this guide's valve seat (16) and valve gap (4) and is kept by the spring being positioned between upper elastic sealing device (1) and guide's valve seat (16)，The bottom of guide's valve seat (16) is provided with upper chamber (19)，When upper elastic sealing device (1) moves afterwards to upper chamber (19)，Inlet plenum (2) and exhaust chamber (15) conducting，The top of guide's valve seat (16) is provided with the exhaust control device (9) turned on described upper chamber (19)，Described exhaust control device (9) is an electromagnetism-gas-driving valve (901)，This electromagnetism-gas-driving valve (901) have the exhaust mode that the gas in upper chamber (19) outwards can be discharged and in the upper chamber (19) input gas thus help upper elastic sealing device (1) to move forward and the inlet plenum (2) that blocks and the air inlet pattern of exhaust chamber (15)，Described air inlet pattern and exhaust mode switchover operation，It is characterized in that: described elastic sealing device (5) includes the first metal bellows (501)，The positioning end of the first metal bellows (501) is sealingly mounted between valve body (7) and valve gap (4)，Telescopic end is positioned at valve port (8) top，It is provided with on the outer face of the telescopic end of the first metal bellows (501) and carries out with valve port (8) sealing the metallic gasket (502) coordinated，The inner chamber of the first metal bellows (501) is turned on described rear air cavity (12) by the opening being positioned on the end face of the first metal bellows (501) location；Described upper elastic sealing device (1) includes the second metal bellows (101), the positioning end of the second metal bellows (101) is sealingly mounted between valve gap (4) and guide's valve seat (16), telescopic end is positioned at exhaust chamber (15) top and makes described inlet plenum (2) and exhaust chamber (15) block or turn on by stretching motion, and the inner chamber of the second metal bellows (101) is turned on described upper chamber (19) by the opening being positioned on the end face of the second metal bellows (101) location；The temperature of the gas of air cavity (12) and inlet plenum (2) after being entered it is less than by gas port (13) by electromagnetism-gas-driving valve (901) temperature of input gas in upper chamber (19)；Described electromagnetism-gas-driving valve (901) is two three mouthfuls of electromagnetism-gas-driving valves, this electromagnetism-gas-driving valve includes the first port being connected with middle air pipe (10) exhaust end, for the second port of aerofluxus and the 3rd port that is connected with external gas source, when the first port and the second port turn on, electromagnetism-gas-driving valve (901) is in the exhaust mode outwards discharged by the gas in upper chamber (19), when the first port and the 3rd port turn on, electromagnetism-gas-driving valve (901) is in the inlet plenum (2) and the air inlet pattern of exhaust chamber (15) making external gas source input gas in upper chamber (19) thus to assist the second metal bellows (101) to block.
- 6. pulse valve device as claimed in claim 5, it is characterized in that: described guide's valve seat (16) is connected with electromagnetism-gas-driving valve (901), so that this electromagnetism-gas-driving valve (901) is away from guide's valve seat (16) by middle air pipe (10).
- 7. pulse valve device as claimed in claim 6, it is characterised in that: the outer surface of described middle air pipe (10) is provided with radiator structure.
- 8. pulse valve device as claimed in claim 5, it is characterized in that: described guide's valve seat (16) is arranged on the top of valve gap (4) by one liter of dais (17), guide's valve seat (16), rise dais (17) and valve gap (4) by connecting as one along guide's valve seat (16) screw (18) circumferentially, the chamber of a receiving the second metal bellows (101) is had in rising dais (17), second metal bellows (101) is positioned at this chamber, the positioning end of the second metal bellows (101) is sealingly mounted between a liter dais (17) and guide's valve seat (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627303.1A CN103644322B (en) | 2013-11-30 | Pulse valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627303.1A CN103644322B (en) | 2013-11-30 | Pulse valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103644322A CN103644322A (en) | 2014-03-19 |
| CN103644322B true CN103644322B (en) | 2016-11-30 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797801Y (en) * | 2005-04-19 | 2006-07-19 | 张志刚 | Electromagnetic pulse valve |
| CN101063491A (en) * | 2006-04-29 | 2007-10-31 | 江苏科林集团有限公司 | Bellows-type pulse valve |
| CN201308795Y (en) * | 2008-11-27 | 2009-09-16 | 苏州工业园区协昌环保科技有限公司 | Pulse blowing valve |
| CN203060992U (en) * | 2012-12-25 | 2013-07-17 | 西安航天远征流体控制股份有限公司 | Metal corrugated pipe for pulse valve |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797801Y (en) * | 2005-04-19 | 2006-07-19 | 张志刚 | Electromagnetic pulse valve |
| CN101063491A (en) * | 2006-04-29 | 2007-10-31 | 江苏科林集团有限公司 | Bellows-type pulse valve |
| CN201308795Y (en) * | 2008-11-27 | 2009-09-16 | 苏州工业园区协昌环保科技有限公司 | Pulse blowing valve |
| CN203060992U (en) * | 2012-12-25 | 2013-07-17 | 西安航天远征流体控制股份有限公司 | Metal corrugated pipe for pulse valve |
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