CN2906238Y - Corrugated pipe type pulse valve - Google Patents
Corrugated pipe type pulse valve Download PDFInfo
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- CN2906238Y CN2906238Y CN 200620113545 CN200620113545U CN2906238Y CN 2906238 Y CN2906238 Y CN 2906238Y CN 200620113545 CN200620113545 CN 200620113545 CN 200620113545 U CN200620113545 U CN 200620113545U CN 2906238 Y CN2906238 Y CN 2906238Y
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- pressure chamber
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- 238000004891 communication Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 59
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
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- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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- 210000000664 rectum Anatomy 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
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Abstract
The utility model relates to a corrugated pipe pulse valve, which comprises a pulse valve seat with a corrugated pipe switch element inside, one end of the valve seat is a connecting end connected with an injection and the other end is connected with an electromagnetic valve, the lower part of the corrugated pipe switch element is covered at the connecting end of the valve seat. The utility model overcomes the defects of the prior art; the size of the valve body can be smaller than 200mm, reduces the spacing of the filter bags for bag filters and the structure is more compact. The corrugated pipe switch element has the advantages of flexible opening of the valve plate, large opening and that more filter bags can be injected by on valve. The inlet is submerged completely inside the atmolysis box, making the channel expedite, the flow resistance lower and the cleaning efficiency better.
Description
Technical field
The utility model relates to a kind of sentinel valve, especially a kind of bellows-type pulse valve that is used for dust removal apparatus.
Background technique
The switching element of tradition sentinel valve is the elastomer diaphragm that forms with the sulfuration of the nylon base cloth of double spread.So claim that again sentinel valve is " membrane valve " (Diaphram Valve).Because there is tension force in base cloth, want to improve flow, strengthen latus rectum and aperture, must do diaphragm greatly, therefore cause body size bigger than normal, Figure 1 shows that a kind of known sentinel valve, by big or small diaphragm valve body is divided into A ' B ' C ' chamber.This sentinel valve A ' chamber connects gas bag, and B ' chamber connects the winding-up pipe, and C ' chamber connects solenoid valve.The working principle of this sentinel valve is described below: C ' chamber be Small diaphragm-piece 2 ' back pressure chamber, during off working state, solenoid valve 1 ' iron core seal deflating valve 10 ', make C ' chamber become blind chamber, because of have throttle orifice 7 ' with branch gas tank 12 ' communicate, so its pressure is equal to, add upper spring 9 ' thrust make the exhaust port 11 of Small diaphragm-piece 2 ' seal A ' chamber '.Because hole 11 ' and logical atmosphere, its pressure is considered as ± and 0, so seal very firmly.A ' chamber is the back pressure chamber of big diaphragm 3 ' (working masks), also because of its exhaust port 11 ' blocking becomes blind chamber, throttle orifice is also arranged and divides gas tank to be communicated with and has same pressure, add spring 6 ' thrust and seal B ' chamber.B ' chamber is connecting the winding-up pipe of logical deduster inner chamber, and intraductal pressure can be considered ± 0, thus big diaphragm 3 ' can seal securely ejiction opening 8 '.During working state, controller send electrical signal make solenoid valve 1 ' electric, iron core mention and open deflating valve 10 ', then C ' chamber pressure release, though through throttle orifice 7 ' tonifying Qi, invar footpath is little, mends not support to let out, and makes that C ' constant pressure is strong to fall on foot.At this moment, A ' constant pressure strength will be when will becoming not change, immediately jack-up Small diaphragm-piece 2 ', then A ' chamber is immediately by exhaust port 11 ' and pressure release, though through throttle orifice 7 ' tonifying Qi, but also let out because of mending not support, make that A ' constant pressure is strong to fall on foot, thus minute gas tank 12 ' the pressure effect under the big diaphragm 3 of jack-up ', opened ejiction opening 8 ', bring up to divide the pressurized air stored in the gas tank by winding-up pipe 13 ' in filter bag, jet, the laying dust of filter bag is removed.After control signal disappeared, iron core resetted, and C ' chamber supercharging resets Small diaphragm-piece; A ' chamber supercharging immediately, big diaphragm resets, sealed again ejiction opening 8 ', promptly sentinel valve returns to off working state.For being fit to the needs that dusting apparatus maximizes, sentinel valve must be accomplished to jet large-minded little with physical dimension simultaneously; Jet large-minded is in order to make a valve some filter bags of jetting more, and physical dimension is in order to reduce the spacing that filter bag is arranged, to make equipment volume little for a short time.From the sentinel valve of above-mentioned known configurations as can be known, when increasing winding-up pipe diameter and strengthening the diaphragm aperture for satisfying the raising flow, diaphragm portion beyond the sealing ejiction opening, the diaphragm area that promptly is positioned at A ' chamber needs enough big, therefore cause the pulse body size bigger than normal, for big pulse bag filter, the sentinel valve of known configurations will further strengthen its physical dimension, then certainly will increase the overall dimensions of deduster.
And for example the long bag of current popular low pressure both domestic and external pulse dust collector use 3 " submerged sentinel valve (claiming the action of low-voltage pulse valve again; because of its suction port is installed in the gas bag ;); the subject matter one of its existence is that body size is big, and its a valve center distance i.e. bag column pitch is at least 205mm so have another name called the submerged sentinel valve; The 2nd, winding-up tolerance is big inadequately, the filter bag of 16 the φ 130 * 6m that generally can only jet; Three temperature that are to use are subjected to the restriction of elastomer diaphragm.Along with thermal power station's emission standard is brought up to＜50mg/Nm
3Power plant's industry and metallurgy industry etc. need the long bag of low pressure pulse dust collector further to maximize, be subjected to the place restriction but modernize and expand the existing factory, the construction of new factory also must reduce floor space, and to this, large-scale sack cleaner design not only will design longer filter bag, and to make the sentinel valve more filter bag of jetting more than 16, simultaneously more need to reduce the sentinel valve size, make bag column pitch less than 205mm, and known sentinel valve can't satisfy this some requirements.
Because the defective that above-mentioned known technology exists, the design people for overcoming the above-mentioned defective that known sentinel valve exists, develops bellows-type pulse valve of the present utility model according to for many years experience and knowledge finally.
Summary of the invention
The technical problems to be solved in the utility model is: a kind of working masks that replaces traditional sentinel valve with bellows is provided, switching element as sentinel valve, reach the installation dimension compactness, being fit to the long bag of low pressure pulse dust collector further maximizes, working life is very long, the sentinel valve that temperature accommodation is wider.
For this reason, a kind of bellows-type pulse valve of the present utility model, have: a sentinel valve valve seat, be equipped with the bellows switching element in it, the connecting end of one end of described valve seat for being connected with winding-up, the other end is connected with a solenoid valve, and the bottom of described bellows switching element is covered on the connecting end of valve seat.
Aforesaid bellows-type pulse valve, wherein, described bellows switching element is by bellows and be arranged on the valve block that the bellows bottom is covered on the valve seat connecting end and form.
Aforesaid bellows-type pulse valve, wherein, described valve seat connecting end have one to valve seat inboard protrude and peripheral dimension less than valve seat in the boss of all sizes, above-mentioned valve block is covered on this boss, and the peripheral dimension of valve block is greater than the boss peripheral dimension.
Aforesaid bellows-type pulse valve, wherein, the diameter of described valve block＞φ 25mm.
Aforesaid bellows-type pulse valve, wherein, the top of the bottom of described sentinel valve valve seat and winding-up pipe is contained in the branch gas tank, described valve seat is fixedlyed connected with the upper end of dividing gas tank, top one end of described winding-up pipe is connected with the connecting end of valve seat, and the other end is fixed on the lower end of described minute gas tank.
Aforesaid bellows-type pulse valve, wherein, described valve seat top is provided with a valve gap, constitutes first back pressure chamber that is positioned at bellows between described valve gap and the valve block; Constitute second back pressure chamber between described valve gap and the electromagnetic valve body bottom; Be provided with between described first back pressure chamber and second back pressure chamber its separated control diaphragm; Described first back pressure chamber, second back pressure chamber are connected with the holding cavity of described valve seat by the throttling duct, and the sidewall of valve seat is provided with and the inlet hole that divides gas tank to be connected, the bottom of described electromagnetic valve body be provided with deflating valve and with the exhaust port of external communications.
Aforesaid bellows-type pulse valve, wherein, the following middle side part of described control diaphragm covers the vent hole of sentinel valve, and its lower outer periphery portion is connected with first back pressure chamber.
Aforesaid bellows-type pulse valve, wherein, the top of described deflating valve is provided with electromagnetic valve core, and the bottom is connected with second back pressure chamber.
Aforesaid bellows-type pulse valve, wherein, described valve seat top is provided with a valve gap, constitutes back pressure chamber between described valve gap and the bellows; The sidewall of described valve seat is provided with and the inlet hole that divides gas tank to be connected, and described back pressure chamber is connected with the holding cavity of described valve seat by the throttling duct, the bottom of described electromagnetic valve body be provided with deflating valve and with the exhaust port of external communications; The top of described valve gap is provided with the bleed passage of perforation, and an end of this bleed passage is communicated with the deflating valve of described solenoid valve, and the other end is connected with back pressure chamber.
Aforesaid bellows-type pulse valve, wherein, described bellows is the metallic bellows.
Aforesaid bellows-type pulse valve, wherein, the branch gas tank that described minute gas tank is circular cross-section which is provided with the flange boss that is connected with the sentinel valve valve seat.
Bellows sentinel valve of the present utility model adopts the switching element of metal bellows as sentinel valve, and it has following advantage and characteristics:
1, compares with known sentinel valve,, reduced the valve block periphery greatly and exceeded the size of the mouth of pipe of jetting, thereby reduced the overall dimensions of sentinel valve owing to adopted the switching element of bellows as sentinel valve.As known 3 " the sentinel valve body size is about 250～220mm, and bellows-type pulse valve body size of the present utility model can be less than 200mm, and this can make the also corresponding minimizing of sack cleaner design filter bag spacing, and makes more compact structure.
2, the bellows switching element has valve block and opens flexibly, the advantage that aperture is big, and therefore, though the valve size is little, the tolerance of winding-up is not little, a valve more filter bag of can jetting.
3, owing to be that ejiction opening is submerged in the branch gas tank fully, it is unimpeded therefore to have a runner, and flow resistance is low, and ash-removal effect is better.
4, use metallic material as switching element, all surpass the structure of elastomer diaphragm in its heatproof, corrosion-resistant, working life etc.
5, the utility model all can use from low pressure to the high pressure applicable to different winding-up bleed pressures.
Description of drawings
Fig. 1 is a kind of sentinel valve of known configurations;
Fig. 2 is that bellows-type pulse valve one of the present utility model is implemented illustration, and it is used for the rectangular cross-section and divides gas tank;
Fig. 3 is the local enlarged diagram at I place among Fig. 2;
Fig. 4 is another enforcement illustration of bellows-type pulse valve of the present utility model, and it is used for circular cross-section and divides gas tank;
Fig. 5 is an another enforcement illustration of the present utility model, and expression is not provided with the bellows-type pulse valve of control diaphragm.
Embodiment
Understand for the purpose of this utility model, feature, technique effect being had more clearly, now contrast description of drawings bellows-type pulse valve of the present utility model.
Shown in Fig. 2,3, one embodiment of the bellows-type pulse valve that the utility model proposes, it has: sentinel valve valve seat 1, be equipped with bellows switching element 2 in the holding cavity 19 of this valve seat 1, one end of described valve seat 1 is for managing 4 connecting ends that are connected 11 with winding-up, the other end is connected with valve gap 18, and valve gap top is connected with a solenoid valve 3, and the bottom of described bellows switching element 2 is covered on the connecting end 11 of valve seat 1.The top of the bottom of described sentinel valve valve seat 1 and winding-up pipe 4 all is contained in the branch gas tank 5, described valve seat 1 is fixedlyed connected with the upper end of dividing gas tank 5, top one end of described winding-up pipe 4 is connected with the connecting end 11 of valve seat 1, and the other end is fixed on the lower end of described minute gas tank.Gas tank 5 was connected with source of the gas in above-mentioned minute.
Above-mentioned bellows switching element 2 is by bellows 21 and be arranged on the bellows bottom, the valve block 22 that is covered on the valve seat connecting end forms.Described valve seat connecting end 11 have one to valve seat inboard protrude and peripheral dimension less than valve seat in the boss 12 of all sizes, above-mentioned valve block 22 is covered on this boss 12, and the peripheral dimension of valve block 22 is greater than boss 12 peripheral dimension.
In the present embodiment, the top of described valve seat 1 is provided with a valve gap 18, constitutes the first back pressure chamber A that is positioned at bellows between described valve gap 18 and the valve block 22; Constitute the second back pressure chamber B between the bottom of the valve body 38 of described valve gap 18 and solenoid valve 3; Be provided with between the described first back pressure chamber A and the second back pressure chamber B its separated control diaphragm 31; The described first back pressure chamber A, the second back pressure chamber B are connected by throttling duct 13,14,15 with the holding cavity 19 of described sentinel valve valve seat 1, and the sidewall of sentinel valve valve seat 1 is provided with and the inlet hole 16 that divides gas tank 5 to be connected, the bottom of described solenoid valve 3 be provided with deflating valve 35 and with the exhaust port 32 of external communications.Described deflating valve 35 runs through electromagnetic valve body 38, the top of this deflating valve 35 is provided with electromagnetic valve core 36, the bottom is connected with the second back pressure chamber B, and the top periphery of described deflating valve 35 is provided with an air vent 37, and the external diameter of this air vent 37 is greater than the external diameter of described electromagnetic valve core 36.One end of described exhaust port 32 is connected with air vent 37, and the other end connects electromagnetic valve body 38, is connected with atmosphere.
In the present embodiment, above-mentioned throttling duct 13,15 is arranged on described valve gap 18 and the valve seat 1, one end in described throttling duct 14 is communicated with the first back pressure chamber A, the other end is connected with dividing gas tank 5 by throttle orifice 13, one end in described throttling duct 15 is connected with an end in throttling duct 13, the other end is connected with the second back pressure chamber B, and the other end in described throttling duct 13 is communicated to branch gas tank 5.
The following middle side part of described control diaphragm 31 covers the vent hole 33 of sentinel valve, and its lower outer periphery portion is connected with the first back pressure chamber A by bleed passage 34.Described vent hole 33 is arranged on the described valve gap 18, and the one end connects to valve gap top, separates by the diaphragm 31 and the second back pressure chamber B that covers thereon, and its other end connects the outside to sentinel valve, communicates with atmosphere.Described bleed passage 34 connects described valve gap 18 on short transverse, the lower outer periphery portion of diaphragm 31 is connected with the first back pressure chamber A.The upside of described diaphragm 31 constitutes the bottom of the described second back pressure chamber B.
In the present embodiment, the diameter of described valve block 22＞φ 25mm, described bellows 21 is the metallic bellows.For described valve block 22 can be resetted better, between described valve block 22 and valve gap 18 inner chamber end faces, be provided with spring 17, the hard core embedding knot of an end of this Returnning spring and described valve block 22, the other end is embedded in the groove of described valve gap 18 inner chamber end faces.The each several part structure of above-mentioned sentinel valve is not limited to this, can adopt any feasible equivalent structure to replace, and for example valve gap 18 also can be to constitute or the like with electromagnetic valve body 38 one.
The working principle of bellows-type pulse valve of the present utility model is: the whole valve body of above-mentioned sentinel valve (comprising valve seat 1, valve gap 18) is fixed on one fen gas tank 5 (bolt 6 also can not run through branch gas tank 5) by bolt 6, in the present embodiment, described minute gas tank 5 is that a rectangle divides gas tank.The connecting end 11 of described valve seat 1 is tightly connected by an end on the O-ring seals 41 and pipe 4 tops of jetting, and after its installation is appropriate, winding-up is managed 4 the other end and is divided the gas tank diapire to weld.
In off working state, electromagnetic valve core 36 sealing deflating valves 35, divide the gas in the gas tank 5 to pass through inlet hole 16, throttling duct 13,14,15 enter the first back pressure chamber A respectively, the second back pressure chamber B, the first back pressure chamber A of diaphragm 31 both sides then, pressure in the second back pressure chamber B gas pressure intensity interior with dividing gas tank equates, and, because the gas in the second back pressure chamber B acts on the whole top area of diaphragm 31, and the gas in the first back pressure chamber A only acts on the outer circumferential face of diaphragm 31 bottoms, the pressure that the pressure that diaphragm top is subjected to is subjected to greater than the bottom, therefore diaphragm 31 is tightly pushed down vent hole 33, makes the first back pressure chamber A, the second back pressure chamber B all becomes blind chamber.Because winding-up pipe 4 is and deduster pure qi (oxygen) space UNICOM, the pressure of tube chamber C chamber can be considered so jet ± and 0, and the pressure in the first back pressure chamber A equates with the pressure that bellows 21 outsides and valve block bottom surface periphery are subjected to, and the compression area of valve block 22 bottom surfaces is less than the compression area of its end face, therefore the gas pressure in the first back pressure chamber A is greater than the pressure sum of bellows outside and valve block 22 bottom surfaces, and under the effect of Returnning spring 17, make valve block 22 block the boss 12 of described valve seat connecting end 11 tightly, be about to spray flexible pipe 4 sealings, divide the gas in the gas tank 5 not enter winding-up pipe 4.
In working order, promptly, when need carry out jetting deashing, the coil of solenoid valve 3 gets, electromagnetic valve core 36 lifts, gas in the second back pressure chamber B is by deflating valve 35, air vent 37 is discharged by exhaust port 32 and by pressure release, when the second back pressure chamber B pressure release, though by throttling duct 13,15 continue inflation to the second back pressure chamber B, but because of the aperture in throttling duct very little, gas flow is little, let out so mend not support, and because the first back pressure chamber A still is in blind chamber state, the pressure in it far surpasses the pressure in the second back pressure chamber B, therefore diaphragm 31 is by the air pressure jack-up in the first back pressure chamber A, and the gas in the first back pressure chamber A is discharged by vent hole 33 and immediately by pressure release.Because, after electromagnetic valve core 36 lifts, the first back pressure chamber A, the second back pressure chamber B all is connected with outside atmosphere, its pressure is far below the compressed-air actuated pressure in minute gas tank, and throttling duct 13,14,15 are aperture, therefore, the pressure that acts on bellows 21 outsides and valve block 22 bottom surfaces far surpass Returnning spring 17 and act on bellows 21 inside and valve block 22 end faces on pressure, so gas jack-up in the branch gas tank that valve block 22 and bellows 21 enter by the inlet hole 16 on valve seat 1 sidewall, and the switch moment about 100ms, divide the pressurized air in the gas tank to enter winding-up pipe 4, discharge the winding-up air-flow, just as " gas explosion ".
After finishing the operation of once jetting, the coil losing electricity of solenoid valve 3, electromagnetic valve core 36 butt again is covered on deflating valve 35, divide the pressurized air in the gas tank 5 to pass through inlet hole 16, throttling duct 13,14,15 enter the first back pressure chamber A and the second back pressure chamber B, because the upper portion pressurized area of diaphragm 31 is compressed the area of gas effect greater than the bottom, therefore be covered on vent hole 33 fast, thereby stop outside exhaust to sentinel valve, under the gas effect that constantly enters by throttling duct 14 among the first back pressure chamber A, bellows and valve block 22 thereof are pushed to the below, the pipe 4 of will jetting seals, and enters off working state.
The length of 22 switch moments of above-mentioned valve block can get electric time length and regulates by setting electromagnetic valve core.
Because energy is not only saved in the progress of deashing sentinel valve when making deashing, more can be applicable to large-scale pulse dust collector, satisfies demand of practical production.For example, with 1 winding-up straight tube internal diameter of the present utility model be φ 100 (during the metal bellows sentinel valve of 4 "), mix 350 * 350 rectangular cross-section and divide the circular cross-section of gas tank or φ 402 * 9 to divide gas tank, can be for the usefulness of the filter bag ash removal of 22 φ 130 * 8m.
As shown in Figure 4, be another embodiment of the present utility model, when above-mentioned bellows sentinel valve being installed in circular cross-section dividing on the gas tank 8, gas tank 8 was provided with the flange boss 7 that is connected with the sentinel valve valve seat in described minute, thereby sentinel valve is equipped with dividing gas tank 8.
In the present embodiment, the structure of described sentinel valve, working principle are all identical with the foregoing description (shown in Figure 2), just need a flange boss 7, so that fixed valve body.
As shown in Figure 5,,, also can cancel the control diaphragm 31 shown in Fig. 2,3, directly live bleed passage 34 ' with the seal spool of solenoid valve for the bellows-type pulse valve of some minor diameters for another embodiment of the present utility model.
That is, in the present embodiment, the top of described valve seat 1 is provided with a valve gap 18 ', constitutes the back pressure chamber A ' that is positioned at bellows between described valve gap 18 ' and the bellows 21; Described valve gap 18 ' contacts with the bottom of the valve body 38 of solenoid valve 3; Further, the bottom of the valve body 38 of described solenoid valve 3 be provided with deflating valve 35 and with the exhaust port 32 of external communications.Described deflating valve 35 runs through electromagnetic valve body 38, the top of this deflating valve 35 is provided with electromagnetic valve core 36, the bottom is connected with the bleed passage 34 ' that is arranged on valve gap 18 ' top, the top periphery of described deflating valve 35 is provided with an air vent 37, and the external diameter of this air vent 37 is greater than the external diameter of described electromagnetic valve core 36.One end of described exhaust port 32 is connected with air vent 37, and the other end connects electromagnetic valve body 38, is connected with atmosphere.The bottom of the bleed passage 34 ' that described valve gap 18 ' top is provided with is connected with back pressure chamber A '.
The described structure of present embodiment is same as the previously described embodiments, all can be installed in circular cross-section and divide gas tank 8 or rectangular cross-section to divide on the gas tank 5.
Present embodiment is because structure more embodiment illustrated in fig. 2 is simpler, therefore, it is in off working state, divide the gas in the gas tank to enter back pressure chamber A ' by throttling duct 14 ', 13 ', because electromagnetic valve core 36 directly seals bleed passage 34 ', so this back pressure chamber A ' becomes blind chamber.And in working order, it is electric that the coil of solenoid valve 3 gets, and electromagnetic valve core 36 lifts, and the gas in the described back pressure chamber A ' is discharged by exhaust port 32 by bleed passage 34 ', air vent 37 and by pressure release.
Other structure of described sentinel valve, working principle are all identical with the foregoing description (shown in Figure 2), repeat no more.
The above, it only is specific embodiment of the utility model, when can not limiting the scope that the utility model is implemented with this, i.e. equivalent variations and the modification of doing according to the utility model claim and description generally all should still belong in the scope that the utility model patent contains.
Claims (11)
1, a kind of bellows-type pulse valve, it is characterized in that, have: a sentinel valve valve seat, be equipped with the bellows switching element in it, the connecting end of one end of described valve seat for being connected with winding-up, the other end is connected with a solenoid valve, and the bottom of described bellows switching element is covered on the connecting end of valve seat.
2, bellows-type pulse valve as claimed in claim 1 is characterized in that: described bellows switching element is by bellows and be arranged on the valve block that the bellows bottom is covered on the valve seat connecting end and form.
3, bellows-type pulse valve as claimed in claim 2, it is characterized in that: described valve seat connecting end have one to valve seat inboard protrude and peripheral dimension less than valve seat in the boss of all sizes, above-mentioned valve block is covered on this boss, and the peripheral dimension of valve block is greater than the boss peripheral dimension.
4, as claim 2 or 3 described bellows-type pulse valves, it is characterized in that: the diameter of described valve block＞φ 25mm.
5, as each described bellows-type pulse valve of claim 1 to 3, it is characterized in that: the top of the bottom of described sentinel valve valve seat and winding-up pipe is contained in the branch gas tank, described valve seat is fixedlyed connected with the upper end of dividing gas tank, top one end of described winding-up pipe is connected with the connecting end of valve seat, and the other end is fixed on the lower end of described minute gas tank.
6, bellows-type pulse valve as claimed in claim 5 is characterized in that: described valve seat top is provided with a valve gap, constitutes first back pressure chamber that is positioned at bellows between described valve gap and the valve block; Constitute second back pressure chamber between described valve gap and the electromagnetic valve body bottom; Be provided with between described first back pressure chamber and second back pressure chamber its separated control diaphragm; Described first back pressure chamber, second back pressure chamber are connected with the holding cavity of described valve seat by the throttling duct, and the sidewall of valve seat is provided with and the inlet hole that divides gas tank to be connected, the bottom of described electromagnetic valve body be provided with deflating valve and with the exhaust port of external communications.
7, bellows-type pulse valve as claimed in claim 6 is characterized in that: the following middle side part of described control diaphragm covers the vent hole of sentinel valve, and its lower outer periphery portion is connected with first back pressure chamber.
8, bellows-type pulse valve as claimed in claim 6 is characterized in that: the top of described deflating valve is provided with electromagnetic valve core, and the bottom is connected with second back pressure chamber.
9, bellows-type pulse valve as claimed in claim 5 is characterized in that: described valve seat top is provided with a valve gap, constitutes back pressure chamber between described valve gap and the bellows; The sidewall of described valve seat is provided with and the inlet hole that divides gas tank to be connected, and described back pressure chamber is connected with the holding cavity of described valve seat by the throttling duct, the bottom of described electromagnetic valve body be provided with deflating valve and with the exhaust port of external communications; The top of described valve gap is provided with the bleed passage of perforation, and an end of this bleed passage is communicated with the deflating valve of described solenoid valve, and the other end is connected with back pressure chamber.
10, as each described bellows-type pulse valve of claim 1 to 3, it is characterized in that: described bellows is the metallic bellows.
11, bellows-type pulse valve as claimed in claim 5 is characterized in that: the branch gas tank that described minute gas tank is circular cross-section which is provided with the flange boss that is connected with the sentinel valve valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113545 CN2906238Y (en) | 2006-04-29 | 2006-04-29 | Corrugated pipe type pulse valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620113545 CN2906238Y (en) | 2006-04-29 | 2006-04-29 | Corrugated pipe type pulse valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906238Y true CN2906238Y (en) | 2007-05-30 |
Family
ID=38114873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620113545 Expired - Lifetime CN2906238Y (en) | 2006-04-29 | 2006-04-29 | Corrugated pipe type pulse valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906238Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303696A (en) * | 2018-11-23 | 2019-02-05 | 秦艳 | A kind of clinical anesthesia auxiliary dispensation apparatus |
-
2006
- 2006-04-29 CN CN 200620113545 patent/CN2906238Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109303696A (en) * | 2018-11-23 | 2019-02-05 | 秦艳 | A kind of clinical anesthesia auxiliary dispensation apparatus |
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