CN108223866A - A kind of constant pressure valve - Google Patents
A kind of constant pressure valve Download PDFInfo
- Publication number
- CN108223866A CN108223866A CN201711346057.7A CN201711346057A CN108223866A CN 108223866 A CN108223866 A CN 108223866A CN 201711346057 A CN201711346057 A CN 201711346057A CN 108223866 A CN108223866 A CN 108223866A
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- valve
- flap
- valve body
- mouth
- medium
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The present invention relates to a kind of constant pressure valves, it is characterised in that the valve deck is equipped with pressure hole, and pressure stabilizing mechanism is placed on valve body and valve deck lid is put to be fixedly connected with the valve body on pressure stabilizing mechanism and makes to form sealed chamber between valve deck and pressure stabilizing mechanism；First medium runner is equipped in the upper side of the valve body, second medium runner is equipped in the bottom end of the valve body；It is located in the valve body at the nozzle of first medium runner and second medium runner and is respectively equipped with first mouth and second that shuts off and shuts off mouth；The flap includes the first flap and the second flap, the first flap and the second flap be separately mounted to be placed on valve rod corresponding first shut off mouth and second shut off mouthful at and the first flap and the second flap can synchronize the mouth and second that shuts off of closure or openness first under the effect of external force and shut off mouth.Its effect is can not only to ensure that the pressure medium in valve is constant, meanwhile, the flow of medium can be also effectively improved, meets the requirement of upstream device and production technology to rate-of flow.
Description
Technical field
The present invention relates to a kind of valve, more particularly to a kind of constant pressure valve is mainly used in the tune of pressure medium
Section and balance.
Background technology
Constant pressure valve is mainly used for that the pressure of medium is controlled to maintain in certain numerical value, ensures upstream device in the process of running
Safety and production technology to the requirement of rate-of flow.
At present, there are many constant pressure valve type in the market, shape and configurations；Common constant pressure valve is using process
In, the pressure of medium in valve is controlled using the pressure stabilizing mechanism in constant pressure valve, but using in some particular places or equipment
In the process, it is desirable that pressure reaches certain value, but rate-of flow cannot be reduced, and existing constant pressure valve is in control pressure medium
Meanwhile the rate-of flow also opposite reduction of inevitable meeting, the use that can not thus meet some equipment and production technology will
It asks.
Invention content
In order to solve existing constant pressure valve while pressure medium is controlled, the reduction of the flow of medium can not meet equipment and
The technical problems such as the requirement of production technology, the present invention provide a kind of constant pressure valve, which not only can effectively control medium
Pressure, upstream device is avoided to be damaged due to hypertonia；Meanwhile the flow of medium can be also effectively improved to ensure equipment and life
The requirement of production. art.
For solution more than technical problem, the technical solution adopted by the present invention is that a kind of constant pressure valve, include valve body, valve deck,
Valve rod and pressure stabilizing mechanism, are equipped with medium entrance and media outlet on the valve body, and valve rod one end is placed in valve body and is holding
Portion is fixed with flap, and the other end of valve rod is placed in outside valve deck；It is characterized in that the valve deck is equipped with pressure hole, pressure stabilizing mechanism
Bottom surrounding is placed on valve body and valve deck lid is put to be fixedly connected with the valve body on pressure stabilizing mechanism and makes shape between valve deck and pressure stabilizing mechanism
Into sealed chamber；First medium runner, the first medium runner one end and valve body phase are equipped in the upper side of the valve body
Logical, the other end is connected with medium entrance；Second medium runner, the second medium runner one are equipped in the bottom end of the valve body
End is connected with valve body, and the other end is connected with medium entrance；It is located at first medium runner and second in the valve body to be situated between
First mouth and second that shuts off is respectively equipped at the nozzle in mass flow road to shut off mouth；The flap includes the first flap and the second valve
Valve, the first flap and the second flap be separately mounted to be placed on valve rod corresponding first shut off mouth and second shut off mouthful at and
One flap and the second flap can synchronize the mouth and second that shuts off of closure or openness first and shut off mouth under the effect of external force.
Further, the medium entrance is one end difference of tee pipe fitting, first medium runner and second medium runner
It is connected with the two of which nozzle of tee pipe fitting.
Further, the valve rod includes the first valve rod and the second valve rod, and the first flap is fixed on the bottom of the first valve rod
It holds and is structure as a whole with the first valve rod, the top of the first valve rod passes through pressure stabilizing mechanism and valve deck to be placed in outside valve deck；Described
Two flaps are fixed on the bottom end of the second valve rod and are structure as a whole with the second valve rod, and the top of the second valve rod is inserted into the first flap
It is fixedly connected with the first flap.
Further, the valve body includes the first valve body tube and the second valve body tube, and the top of the first valve body tube is in loudspeaker
Mouthful shape and its edge are equipped with limited step, and the pressure stabilizing mechanism is placed on limited step and passes through valve deck and the first valve body
The seal of tube connects；On the side wall of first valve body tube be equipped with medium shunt mouth, described first medium runner one end with
Medium shunt mouth is tightly connected；It is equipped with the flange that extends internally at the upper end tube nozzle of second valve body tube, described first
Flap is placed in above flange and can block flange under external force, which forms described first and shut off mouth；Described
The bottom end of one valve body tube is tightly connected by the first pipe thread and the second valve body tube and the medium entrance is arranged on the second valve body
The centre of pipe；The second flange to extend internally is equipped at the nozzle of the second medium runner, it is convex that the second flap is placed in second
The second flange can be blocked above edge and under external force, second flange form described in second shut off mouth；Second valve body tube
Bottom end is tightly connected by the second pipe thread and second medium runner.
Further, the first flap section can be inserted into first in prismatic and its bottom end and shuts off in mouth under external force
And block first and shut off mouth, internal thread hole is equipped in the first flap bottom, internal thread is inserted into second valve rod one end end
It is threadedly coupled and is integrated with the first flap in hole；Second flap includes the sealing plate for being fixed on the second valve rod bottom end,
The edge of the sealing plate is equipped with multi-disc arc-like sheet, and the top width of arc-like sheet, which is less than bottom end width, makes shape between adjacent arc-like sheet
Into can be by the gap of medium, the internal diameter of the radian of the arc-like sheet and the second flange matches and sealing plate under external force
The second flange can be blocked.
Further, the pressure stabilizing mechanism includes limited cap, voltage stabilizing piece, limiting stand and stop collar, the limiting stand
It is outer and be structure as a whole with the first valve rod to be arranged on the first valve rod, voltage stabilizing on piece be equipped with mounting hole and be nested with outside the first valve rod and
On limiting stand, the surrounding edge of voltage stabilizing piece is placed at the limited step of the first valve body tube and valve deck is placed in above voltage stabilizing piece
And pass through third pipe thread and be tightly connected；Stop collar is nested with its bottom end outside the first valve rod and fits with voltage stabilizing piece, and top passes through valve
The valve cover hole of lid is placed in outside valve deck and stop collar is sealed to bottom offset under external force beyond the length of valve cover hole with the second valve rod
Stifled second shut off mouth stroke it is identical；The limiting cap is put makes limit above stop collar and above limited cap equipped with nut
Position cap is fixedly connected with the first valve rod.
Further, the voltage stabilizing piece include the first diaphragm, the second diaphragm and strengthen shrapnel, described second every
Diaphragm strengthens shrapnel and the first diaphragm and is sequentially overlapped and is nested with outside the first valve rod and the baseplane of the second diaphragm is placed in limit
It fits on the platform of position with limiting stand, the bottom face of the stop collar and the upper surface of the first diaphragm fit.
Further, the reinforcement shrapnel, which includes outer snap ring, interior snap ring and rounded display and divides equally, cuts what is formed
The limiting slot that height matches with elastic piece thickness, institute are respectively equipped on several pieces of elastic pieces, the outer snap ring and interior snap ring
The elastic piece both ends stated are respectively placed in the limiting slot of outer snap ring and interior snap ring；In first diaphragm and the second diaphragm
Inside edge and outer ledge at respectively be equipped with card slot, the outer snap ring and interior snap ring are respectively placed in corresponding card slot
It fits with the first diaphragm and the second diaphragm.
Further, the interior snap ring includes upper clamp slice and lower card, and ring is respectively equipped on upper clamp slice and lower card
Shape boss, the annular convex platform form the limiting slot of the interior snap ring.
Further, several circle elastic force are respectively equipped in first diaphragm and the second diaphragm end surface to strengthen
Ring, the elastic force reinforcing ring are structure as a whole respectively with the first diaphragm and the second diaphragm.
The beneficial effects of the invention are as follows by setting pressure hole on valve deck and making to be formed between valve deck and pressure stabilizing mechanism close
Chamber is sealed, medium, which can squeeze pressure stabilizing mechanism, in use, in valve makes pressure stabilizing mechanism be bent upwards deformation and synchronous drive
Valve rod on valve rod the first flap, the second flap synchronize shift up, shut off mouth and second section so as to open first
Head piece, and the excessive damage upstream device of pressure medium is prevented, at this point, just being injected in sealed chamber by the pressure hole on valve deck
High pressure gas less than pressure medium drives pressure stabilizing mechanism to reset downwards, since sealed chamber is enclosure space, high pressure gas without
Method is discharged, and pressure stabilizing mechanism can be driven to reset downwards so only needing the gas of 1/5th pressure of injected media pressure, passed through
Pressure stabilizing mechanism be bent downwardly reset can synchronous drive valve rod, the first flap, the second flap adjust first section to bottom offset
Head piece, the second actual internal area for shutting off mouth realize the adjusting of pressure medium, so as to fulfill the operational safety of upstream device is ensured；
And shut off mouth by setting first medium runner and second medium runner and first mouth and second that shuts off on valve body, in annular seal space
While pressure medium in indoor high pressure gas control valve door, the flow of also opposite increased medium, so as to fulfill carrying
The purpose of high valve rate-of flow；And if in use, needing to increase the flow of medium and pressure or reducing medium flow field
Amount and pressure, it is only necessary to which the air pressure size of application valve cover pressure hole can be realized, and using this structure, can not only ensure in valve
Pressure medium it is constant, meanwhile, can also effectively improve the flow of medium, meet requirement of the upstream device to rate-of flow.
Description of the drawings
Fig. 1 is a kind of constant pressure valve sectional structure chart of the embodiment of the present invention
Fig. 2 is the three-dimensional structure diagram of the first valve rod in the embodiment of the present invention
Fig. 3 is the three-dimensional structure diagram of the second valve rod in the embodiment of the present invention
Fig. 4 is the three-dimensional assembly diagram for strengthening shrapnel in the embodiment of the present invention
Fig. 5 is the three-dimensional structure diagram of outer snap ring in the embodiment of the present invention
Fig. 6 is the three-dimensional structure diagram of the first diaphragm in the embodiment of the present invention
Fig. 7 is the three-dimensional structure diagram of upper clamp slice in the embodiment of the present invention
Specific embodiment
Embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in figs. 1-7, the present invention is a kind of constant pressure valve, includes valve body 1, valve deck 2, valve rod 3 and pressure stabilizing mechanism 5,
The valve body 1 is equipped with medium entrance 11 and media outlet 12, and 3 one end of valve rod is placed in valve body 1 and is fixed with valve in end
Valve 4, the other end of valve rod 3 are placed in outside valve deck 2；The valve deck 2 is equipped with pressure hole 21, and 5 bottom surrounding of pressure stabilizing mechanism is placed in
On valve body 1 and the lid of valve deck 2 is put to be fixedly connected to make to be formed between valve deck 2 and pressure stabilizing mechanism 5 with valve body 1 on pressure stabilizing mechanism 5 and be sealed
Chamber 6；First medium runner 13,13 one end of first medium runner and 1 phase of valve body are equipped in the upper side of the valve body 1
Logical, the other end is connected with medium entrance 11；Second medium runner 14, the second medium are equipped in the bottom end of the valve body 1
14 one end of runner is connected with valve body 1, and the other end is connected with medium entrance 11；It is located at first medium in the valve body 1
First mouth 15 and second that shuts off is respectively equipped at the nozzle of runner 13 and second medium runner 14 to shut off mouth 16；The flap 4
Include the first flap 41 and the second flap 42, the first flap 41 and the second flap 42 are separately mounted to be placed on valve rod 3 pair
First answered the mouth 15 that shuts off shuts off with second at mouth 16 and the first flap 41 under the effect of external force can be synchronous with the second flap 42
The mouth 15 and second that shuts off of closure or openness first shuts off mouth 16；By setting pressure hole 21 on valve deck 2 and making valve deck 2 and voltage stabilizing
Sealed chamber 6 is formed between mechanism 5, medium, which can squeeze pressure stabilizing mechanism 5, in use, in valve makes pressure stabilizing mechanism 5 upward
Flexural deformation and synchronous drive valve rod 3 on valve rod 3 the first flap 41, the second flap 42 synchronize shift up, from
And open first mouth 15 and second that shuts off and shut off mouth 16, and the excessive damage upstream device of pressure medium is prevented, at this point, just passing through valve
Pressure hole 21 on lid 2 drives pressure stabilizing mechanism 5 to reset downwards toward high pressure gas of the interior injection of sealed chamber 6 less than pressure medium,
Since sealed chamber 6 is enclosure space, high pressure gas can not discharge, so only needing 1/5th pressure of injected media pressure
Gas can drive pressure stabilizing mechanism 5 to reset downwards, can synchronous drive valve rod 3, the by the reset that is bent downwardly of pressure stabilizing mechanism 5
One flap 41, the second flap 42 to bottom offset come adjust first shut off mouth 15, second shut off mouth 16 actual internal area realize be situated between
The adjusting of matter pressure, so as to fulfill the operational safety of upstream device is ensured；And by setting first medium runner 13 on valve body 1
Shut off mouth 16 with the mouth 15 and second that shuts off of second medium runner 14 and first, the high pressure gas control valve door in sealed chamber 6
While interior pressure medium, the flow of also opposite increased medium, so as to fulfill the purpose of valve rate-of flow is improved；And
If in use, need to increase the flow of medium and pressure or reduce rate-of flow and pressure, it is only necessary to application valve cover 2
The air pressure size of pressure hole 21 can be realized, and using this structure, can not only ensure that the pressure medium in valve is constant, meanwhile,
The flow of medium can be also effectively improved, meets requirement of the upstream device to rate-of flow.
In the present embodiment, in order to ensure requirement of the valve downstream equipment to rate-of flow, the medium entrance
11 be tee pipe fitting, one end of first medium runner 13 and second medium runner 14 respectively with the two of which nozzle of tee pipe fitting
It is connected；By setting tee pipe fitting, the medium in such first medium runner 13 and second medium runner 14 can pass through threeway
Pipe fitting is flowed at one, to ensure requirement of the upstream device to rate-of flow.
In the present embodiment, in order to ensure that valve can be closed in time when valve pressure medium is more than setting value and convenient for the
The production and assembly of one flap 41 and the second flap 42, the valve rod 3 include the first valve rod 31 and the second valve rod 32, the first valve
Valve 41 is fixed on the bottom end of the first valve rod 31 and is structure as a whole with the first valve rod 31, and the top of the first valve rod 31 passes through voltage stabilizing machine
Structure 5 and valve deck 2 are placed in outside valve deck 2；Second flap 42 is fixed on the bottom end of the second valve rod 32 and with the second valve rod 32
Integral structure, the top of the second valve rod 32 is inserted into the first flap 41 to be fixedly connected with the first flap 41；By setting the first valve
31 and second valve rod 32 of bar, during production and assembly, the first flap 41 and the second flap 42 can be installed on first accordingly
On 31 and second valve rod 32 of valve rod, and shut off mouth to ensure that valve can block first in time when pressure medium is more than setting value
15 and second shut off mouth 16, and 32 one end of the second valve rod, which is inserted into cross to win with the first flap 41 in the first flap 41, cooperatively forms fixed company
It connects.
In the present embodiment, for the ease of the production and assembly of valve and when valve pressure medium be more than setting value when can and
When closure valve, the valve body 1 includes the first valve body tube 17 and the second valve body tube 18, and the top of the first valve body tube 17 is in
Bell mouth shape and its edge are equipped with limited step 171, and the pressure stabilizing mechanism 5 is placed on limited step 171 and passes through valve
Lid 2 is tightly connected with the first valve body tube 17；Medium shunt mouth 172 is equipped on the side wall of first valve body tube 17, it is described
13 one end of first medium runner be tightly connected with medium shunt mouth 172；It is set at the upper end tube nozzle of second valve body tube 18
There is the flange 181 to extend internally, first flap 41 is placed in 181 top of flange and can block flange under external force
181, which forms described first and shuts off mouth 15；The bottom end of first valve body tube 17 by the first pipe thread 173 with
Second valve body tube 18 is tightly connected and the medium entrance 12 is arranged on the centre of the second valve body tube 18；The second medium
The second flange 141 to extend internally is equipped at the nozzle of runner 14, the second flap 42 is placed in 141 top of the second flange and can be outside
Power effect is lower to block the second flange 141, which forms described second and shut off mouth 16；Second valve body tube, 18 bottom end
It is tightly connected by the second pipe thread 182 with second medium runner 14；By the way that valve body 1 is set as separate structure, by the first valve body tube
17 and second valve body tube 18 form, shut off mouth 16 convenient for the mouth 15 and second that shuts off of first in setting valve body 1 in this way, if it is whole
Body structure can not then set first to shut off mouth 15, so the present embodiment is preferred embodiment；And in the second valve body tube 18 and second
Corresponding 181 and second flange 141 of flange in medium runner 14 is set respectively, the first flap 41 can be passed through in use
It matches to achieve the purpose that closure valve with corresponding 181 and second flange 141 of flange with the second flap 42.
In the present embodiment, for the ease of the pressure medium in control valve and guarantee rate-of flow, first valve
41 section of valve can be inserted into first in prismatic and its bottom end under external force shuts off in mouth 15 and blocks first and shut off mouth 15, the
One flap, 41 bottom is equipped with internal thread hole 411, and 32 one end end of the second valve rod is inserted into internal thread hole 411 and the first valve
Valve 41 is crossed to win to be connected and is integrated；Second flap 42 includes the sealing plate 421 for being fixed on 32 bottom end of the second valve rod,
The edge of the sealing plate 421 is equipped with multi-disc arc-like sheet 422, and the top width of arc-like sheet 422, which is less than bottom end width, makes adjacent arc
The gap of medium, the internal diameter phase of the radian of the arc-like sheet 422 and the second flange 141 can be passed through by being formed between shape piece 422
Match and sealing plate 421 can block the second flange 141 under external force；It is matched by the first flap 41 with first mouth 15 that shuts off,
The flow of medium can be accordingly increased；And the second flap 42 is set and is made of sealing plate 421 and four arc-like sheets 422, in this way
When pressure medium is in range of set value, the medium in valve can be shut off by the first flap 41 and first between mouth 15
Gap and the second flap 42 and the second gap shut off between mouth 16 pass through, and not only ensure that the pressure requirements of medium in valve,
And the flow of medium in valve can also be effectively improved, meet requirement of the upstream device to rate-of flow；Certainly, the second valve rod 32
It with there are many kinds of the connection modes of the first flap 41, for example is threadedly coupled or clamping, but is readily produced assembling in this way,
Therefore, the embodiment of the present embodiment is preferred embodiment.
In the present embodiment, in order to ensure the constant of pressure medium in valve, avoid the excessive damage valve of pressure medium and
Mounted on the equipment of valve downstream, the pressure stabilizing mechanism 5 includes limited cap 51, voltage stabilizing piece 52, limiting stand 53 and stop collar
54, it is outer and be structure as a whole with the first valve rod 31 that the limiting stand 53 is arranged on the first valve rod 31, and voltage stabilizing piece 52 is nested with the
Outside one valve rod 31 and on limiting stand 53, the surrounding edge of voltage stabilizing piece 52 is placed on the limited step 171 of the first valve body tube 17
Place and valve deck 2 are placed in 52 top of voltage stabilizing piece and pass through third pipe thread 174 and be tightly connected；Stop collar 54 is nested with outside the first valve rod 31
Its bottom end fits with voltage stabilizing piece 52, and the valve cover hole 22 of 54 top of stop collar across valve deck 2 is placed in outside valve deck 2 and stop collar 54 surpasses
Go out the length of valve cover hole 22 and the second valve rod 32 under external force to bottom offset block second shut off mouth 16 stroke it is identical；Institute
The lid of limited cap 51 stated is put makes 51 and first valve rod of limited cap above stop collar 54 and above limited cap 51 equipped with nut 55
31 are fixedly connected；It is outer and be placed in by setting limiting stand 53 outside the first valve rod 31 and voltage stabilizing piece 52 being made to be set in the first valve rod 31
On limiting stand 53, and stop collar 54 is added on voltage stabilizing piece 52 and makes stop collar 54 outside the valve cover hole 22 of valve deck 2, and
Limited cap 51 is set to be fixedly connected by nut 55 with the first valve rod 31 on stop collar 54, so in use, just made steady
Tabletting 52, stop collar 54 and limited cap 51 and the first valve rod 31 are connected as a single entity and can be synchronous under the variation of pressure medium effect
Linkage；When the pressure for the high pressure gas that the pressure hole 21 on valve deck 2 injects is equal to or more than the pressure of medium, high pressure gas meeting
It squeezes voltage stabilizing piece 52 and is bent downwardly deformation and synchronous drive limited cap 51, stop collar 54, the first valve rod 31, the first flap 42, the
Two valve rods 32, the second flap 42 make the first flap 41 block first and shut off mouth 15 to bottom offset, the sealing plate 421 of the second flap 42
It blocks second to shut off mouth 16, realizes the closure of valve；And the excessive damage valve of high-pressure gas pressure in order to prevent, pass through and limit is set
Position set 54, limited cap 51 are simultaneously fixedly connected using nut 55 with the first valve rod 31, in this way when the first valve rod 31 drives in high pressure gas
During dynamic 52 flexural deformation of voltage stabilizing piece, limited cap 51 can fit to during bottom offset with 22 top of valve cover hole of valve deck 2
Play the role of protecting the first valve rod 31, the first flap 41, the second valve rod 32 and the second flap 42, effectively prevent the first flap
41 and 42 excessive compression of the second flap damage first shut off mouth 15 and the second purpose for shutting off mouth 16, ensure that the fortune of upstream device
Row safety.
In the present embodiment, in order to ensure the constant pressure effect of valve, the voltage stabilizing piece 52 includes the first diaphragm
521st, the second diaphragm 522 and reinforcement shrapnel 523, second diaphragm 522 strengthen 523 and first diaphragm 521 of shrapnel
It is sequentially overlapped and is nested with and be placed on limiting stand 53 and 53 phase of limiting stand in 31 outer and the second diaphragm 522 baseplane of the first valve rod
Fitting, the bottom face of the stop collar 54 and the upper surface of the first diaphragm 521 fit；By being set on the first valve rod 31
Limiting stand 53 is put, and the second diaphragm 522, reinforcement 523 and first diaphragm 521 of shrapnel is made to be sequentially overlapped on limiting stand 53,
Then it is pressed on the first diaphragm 521 by stop collar 54 again, can thus make the first diaphragm 521, strengthen 523 and of shrapnel
31 synchronous interaction of second diaphragm 522 and the first valve rod, the pressure by adjusting the high pressure gas of the pressure hole 21 of valve deck 2 can
Realize the adjusting of the closure or openness and pressure medium and flow of valve.
In the present embodiment, in order to ensure the constant-pressure stable effect of valve, the reinforcement shrapnel 523 includes outer snap ring
5231st, it interior snap ring 5232 and rounded display and respectively cuts several pieces of elastic pieces 5233 formed, the outer snap ring 5231
With the limiting slot 5234 that matches with 5233 thickness of elastic piece of height, the elastic piece 5233 are respectively equipped on interior snap ring 5232
Both ends are respectively placed in the limiting slot 5234 of outer snap ring 5231 and interior snap ring 5232；In first diaphragm 521 and second
Card slot 525, the outer snap ring 5231 and interior snap ring 5232 are respectively equipped at the inside edge of diaphragm 522 and outer ledge
It is respectively placed in corresponding card slot 525 and fits with the first diaphragm 521 and the second diaphragm 522；It will strengthen shrapnel 523 to be set as
It is made of several pieces of elastic pieces 5233 and interior snap ring 5232 and outer snap ring 5231, is more easily assembled in this way in production, moreover, point
Assembled its ability of anti-deformation of elastic piece 5233 of block and restorability are more preferable than full wafer effect, effectively avoid in high pressure gas
With make the first diaphragm 521 and the second diaphragm 522 that inelastic deformation occur under the action of pressure medium, influence the use of valve
Service life and the adjusting of rate-of flow reduce the constant pressure effect of valve；And inside and outside the first diaphragm 521 and the second diaphragm 522
Individual card slot 525 is respectively provided at both sides of the edge, ensure that in this way elastic piece 5233 after mounting with the first diaphragm 521 and
Second diaphragm 522 keeps smooth, ensures the constant pressure effect and service life of valve.
In the present embodiment, for the ease of the assembling of valve and production, the interior snap ring 5232 includes upper clamp slice
52321 and lower card, annular convex platform 52322, upper clamp slice 52321 and lower card are respectively equipped on upper clamp slice 52321 and lower card
The annular convex platform 52322 of on piece forms the limiting slot 5234 of the interior snap ring 5232；Interior snap ring 5232 is set as two chip architectures,
It is made of upper clamp slice 52321 and lower card, can greatly facilitate the installation of elastic piece in assembling, moreover, structure is simpler
Rationally, it is easier to produce；Since upper clamp slice 52321 is card-like identical under, lower card is not separately identified out in attached drawing
Piece.
In the present embodiment, in order to ensure the constant pressure effect of valve and ensure valve pressure release after can restore initial shape rapidly
State ensures the service life of valve, if being respectively equipped in first diaphragm 521 and 522 end surface of the second diaphragm
Dry circle elastic force reinforcing ring 528, which is structure as a whole respectively with the first diaphragm 521 and the second diaphragm 522；It is logical
It crosses on a side surface of the first diaphragm 521 and the second diaphragm 522 and adds several circle reinforcing rings 528, increase can be played
The elastic force of first diaphragm 521 and the second diaphragm 522, effectively avoid the first diaphragm 521 and the second diaphragm 522 occur it is non-
The service life of valve is shortened in elastic deformation；Secondly, by reinforcing ring, the first diaphragm 521 and second after when valve pressure release
Diaphragm 522 can rapidly be restored to original state, extend the service life of valve.
Above-described embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all
It should within protection scope of the present invention.
Claims (10)
1. a kind of constant pressure valve includes valve body, valve deck, valve rod and pressure stabilizing mechanism, be equipped on the valve body medium entrance and
Media outlet, valve rod one end are placed in valve body and flap are fixed in end, and the other end of valve rod is placed in outside valve deck；Its feature exists
In the valve deck be equipped with pressure hole, pressure stabilizing mechanism bottom surrounding is placed on valve body and valve deck lid put on pressure stabilizing mechanism with valve
Body, which is fixedly connected, to be made to form sealed chamber between valve deck and pressure stabilizing mechanism；First medium is equipped in the upper side of the valve body
Runner, the first medium runner one end are communicated with valve body, and the other end is connected with medium entrance；It is set in the bottom end of the valve body
There is second medium runner, which is connected with valve body, and the other end is connected with medium entrance；Described
First mouth and second that shuts off is respectively equipped at the nozzle of first medium runner and second medium runner in valve body to shut off mouth；Institute
The flap stated includes the first flap and the second flap, and the first flap and the second flap are separately mounted to be placed in corresponding on valve rod
First shut off mouth and second shut off mouthful at and the first flap and the second flap can synchronize closure or openness under the effect of external force
First mouth and second that shuts off shuts off mouth.
2. a kind of constant pressure valve according to claim 1, it is characterised in that the medium entrance is tee pipe fitting, and first is situated between
One end of mass flow road and second medium runner is connected respectively with the two of which nozzle of tee pipe fitting.
3. a kind of constant pressure valve according to claim 1 or 2, it is characterised in that the valve rod includes the first valve rod and
Two valve rods, the first flap are fixed on the bottom end of the first valve rod and are structure as a whole with the first valve rod, and the top of the first valve rod passes through
Pressure stabilizing mechanism and valve deck are placed in outside valve deck；Second flap is fixed on the bottom end of the second valve rod and is integrated with the second valve rod
Structure, the top of the second valve rod is inserted into the first flap to be fixedly connected with the first flap.
4. a kind of constant pressure valve according to claim 3, it is characterised in that the valve body includes the first valve body tube and
Two valve body tubes, the top of the first valve body tube are equipped with limited step in bell mouth shape and its edge, and the pressure stabilizing mechanism is placed
On limited step and pass through valve deck and the first valve body tube and be tightly connected；Medium is equipped on the side wall of first valve body tube
Diffluence pass, described first medium runner one end are tightly connected with medium shunt mouth；The upper end tube nozzle of second valve body tube
Place is equipped with the flange to extend internally, and first flap is placed in above flange and can block flange under external force, this is convex
Edge forms described first and shuts off mouth；The bottom end of first valve body tube is tightly connected by the first pipe thread and the second valve body tube
And the media outlet is arranged on the centre of the second valve body tube；It is equipped with and extends internally at the nozzle of the second medium runner
The second flange, the second flap is placed in above the second flange and can block the second flange, the second flange structure under external force
Shut off mouth into described second；Second valve body tube bottom end is tightly connected by the second pipe thread and second medium runner.
5. a kind of constant pressure valve according to claim 4, it is characterised in that the first flap section is in prismatic and its bottom
End can be inserted into first under external force shuts off in mouth and blocks first and shut off mouth, and internal thread hole is equipped in the first flap bottom,
Second valve rod one end end is inserted into internal thread hole to be threadedly coupled with the first flap and is integrated；The second flap packet
The sealing plate for being fixed on the second valve rod bottom end is included, multi-disc arc-like sheet, the top width of arc-like sheet are equipped in the edge of the sealing plate
Making to be formed between adjacent arc-like sheet less than bottom end width can be by the gap of medium, the radian of the arc-like sheet and second convex
The internal diameter of edge matches and sealing plate can block the second flange under external force.
6. a kind of constant pressure valve according to claim 5, it is characterised in that the pressure stabilizing mechanism includes limited cap, voltage stabilizing
Piece, limiting stand and stop collar, the limiting stand are arranged on outside the first valve rod and are structure as a whole with the first valve rod, voltage stabilizing on piece
Equipped with mounting hole and it is nested with outside the first valve rod and on the limiting stand, the surrounding edge of voltage stabilizing piece is placed on the first valve body tube
At limited step and valve deck is placed in above voltage stabilizing piece and passes through third pipe thread and is tightly connected；Stop collar is nested with outside the first valve rod it
Bottom end fits with voltage stabilizing piece, top pass through the valve cover hole of valve deck be placed in that valve deck is outer and stop collar beyond valve cover hole length and the
Two valve rods under external force to bottom offset block second shut off mouth stroke it is identical；The limiting cap is put on stop collar
Just and above limited cap being equipped with nut makes limited cap be fixedly connected with the first valve rod.
7. a kind of constant pressure valve according to claim 6, it is characterised in that the voltage stabilizing piece includes the first diaphragm,
Two diaphragms and reinforcement shrapnel, second diaphragm, reinforcement shrapnel and the first diaphragm are sequentially overlapped and are nested with first
Valve rod is outer and the baseplane of the second diaphragm is placed on limiting stand and fits with limiting stand, the bottom face of the stop collar and the
The upper surface of one diaphragm fits.
8. a kind of constant pressure valve according to claim 7, it is characterised in that the reinforcement shrapnel includes outer snap ring, interior card
Ring and rounded display simultaneously respectively cut several pieces of elastic pieces formed, and height is respectively equipped in the outer snap ring and interior snap ring
The limiting slot to match with elastic piece thickness, the elastic piece both ends are respectively placed in the limiting slot of outer snap ring and interior snap ring；
Card slot, the wild card are respectively equipped at the inside edge of first diaphragm and the second diaphragm and outer ledge
Ring and interior snap ring are respectively placed in corresponding card slot and fit with the first diaphragm and the second diaphragm.
9. a kind of constant pressure valve according to claim 8, it is characterised in that the interior snap ring includes upper clamp slice and lower card
Piece is respectively equipped with annular convex platform on upper clamp slice and lower card, which forms the limiting slot of the interior snap ring.
10. a kind of constant pressure valve according to claim 9, it is characterised in that in first diaphragm and the second diaphragm
End surface is respectively equipped with several circle elastic force reinforcing rings, which is respectively one with the first diaphragm and the second diaphragm
Body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346057.7A CN108223866A (en) | 2017-12-05 | 2017-12-05 | A kind of constant pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346057.7A CN108223866A (en) | 2017-12-05 | 2017-12-05 | A kind of constant pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223866A true CN108223866A (en) | 2018-06-29 |
Family
ID=62649608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711346057.7A Pending CN108223866A (en) | 2017-12-05 | 2017-12-05 | A kind of constant pressure valve |
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| Country | Link |
|---|---|
| CN (1) | CN108223866A (en) |
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| CN103511695A (en) * | 2013-09-25 | 2014-01-15 | 临汾华松阀门制造有限公司 | Self-power type balance electric control valve |
| CN203395307U (en) * | 2012-10-31 | 2014-01-15 | 四川安东油气工程技术服务有限公司 | Pneumatic overflow valve |
| CN203926853U (en) * | 2014-05-05 | 2014-11-05 | 丹佛斯公司 | Thermostat valve |
| US20150277450A1 (en) * | 2012-10-22 | 2015-10-01 | Emerson Process Management Regulator Technologies, Inc. | Drive Device and Valve Comprising the Same |
| CN205978685U (en) * | 2016-08-31 | 2017-02-22 | 江苏华立控制阀有限公司 | Novel lever relief pressure valve |
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2017
- 2017-12-05 CN CN201711346057.7A patent/CN108223866A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184907A (en) * | 1996-10-31 | 1998-06-17 | 山武·霍尼韦尔公司 | Valve device |
| CN2475899Y (en) * | 2001-02-08 | 2002-02-06 | 马军正 | Flow equalising valve |
| DE10200273A1 (en) * | 2002-01-07 | 2003-07-24 | Dungs Karl Gmbh & Co Kg | Electrically-operated magnetic safety valve for flammable gas |
| CN201739525U (en) * | 2010-07-26 | 2011-02-09 | 杭州浙临阀门有限公司 | Elastic dual-sealing steam pressure-reducing valve |
| US20150277450A1 (en) * | 2012-10-22 | 2015-10-01 | Emerson Process Management Regulator Technologies, Inc. | Drive Device and Valve Comprising the Same |
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Application publication date: 20180629 |