CN206874879U - A kind of barrier film for pressure-reducing valve - Google Patents
A kind of barrier film for pressure-reducing valve Download PDFInfo
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- CN206874879U CN206874879U CN201720426374.9U CN201720426374U CN206874879U CN 206874879 U CN206874879 U CN 206874879U CN 201720426374 U CN201720426374 U CN 201720426374U CN 206874879 U CN206874879 U CN 206874879U
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- barrier film
- pressure
- barrier
- reducing valve
- control chamber
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Abstract
It the utility model is related to a kind of barrier film for pressure-reducing valve, barrier film is assemblied in the valve body of barrier film pressure-reducing valve, barrier film will be divided into medium channel and closed control chamber in valve body, including the inner septum being independently arranged and outer barrier film, outer barrier film is provided adjacent to medium channel, inner septum is provided adjacent to control chamber, and a barrier cavity is formed between inner septum and outer barrier film.Above-mentioned outer barrier film offers at least one barrier through hole, and barrier through hole connects above-mentioned medium channel and set with above-mentioned barrier cavity.Barrier through hole of the present utility model coordinates barrier film to divide the setting of inner septum and outer barrier film, and the medium part in medium channel is imported in barrier cavity, so as to increase by one layer of buffering in inner septum and outer barrier film.
Description
Technical field
It the utility model is related to pressure-reducing valve product scope, and in particular to a kind of barrier film for pressure-reducing valve.
Background technology
Pressure-reducing valve is the outlet pressure that inlet pressure is reduced to a certain needs by regulation, and relies on the energy of medium in itself
Amount, outlet pressure is set to keep stable valve automatically.From the viewpoint of hydrodynamics, pressure-reducing valve is that a local resistance can become
The restricting element of change, i.e., by changing orifice size, change the kinetic energy of flow velocity and fluid, cause the different pressure losses, from
And reach the purpose of decompression.Then by control and the regulation of regulating system, the fluctuation and spring force for making downstream pressure balance each other,
Downstream pressure is set to keep constant in certain error range.Existing most of pressure-reducing valves use full of twists and turns inside mostly
The modes such as respective outer side edges piston, barrier film realize effect of easing stress, and full of twists and turns internal structure will be made troubles to product in
Manufacture, the problems such as production cost is high and inconvenient for use.Existing barrier film is set using individual layer mostly, and the barrier film that individual layer is set is past
It is past to need to coordinate full of twists and turns internal structure to ensure the normal work of barrier film pressure-reducing valve.
The content of the invention
The utility model provides a kind of barrier film for pressure-reducing valve, to solve the above problems.
The utility model adopts the following technical scheme that：
A kind of barrier film for pressure-reducing valve, barrier film are assemblied in the valve body of barrier film pressure-reducing valve, and barrier film will be divided into valve body
Medium channel and closed control chamber, including the inner septum being independently arranged and outer barrier film, outer barrier film abut with medium channel
Set, inner septum is provided adjacent to control chamber, and a barrier cavity is formed between inner septum and outer barrier film.Above-mentioned outer barrier film offers
At least one barrier through hole, barrier through hole connect above-mentioned medium channel and set with above-mentioned barrier cavity.
Above-mentioned barrier through hole connects above-mentioned inflow end and set with above-mentioned barrier cavity.
Above-mentioned barrier through hole is extended along the media flow direction in above-mentioned medium channel.
The pressure-reducing valve of above-mentioned barrier film, including valve body, the barrier film, feed line and outflow pipeline are assembled, is provided with valve body
Above-mentioned medium channel, barrier film are assemblied in the medium channel, and above-mentioned control chamber is formed between barrier film and valve interior wall, and control chamber will
Medium channel is divided into according to media flow direction flows into end and outflow end, and feed line connection flows into end and control chamber is set
Put, flow out pipeline connection outflow end and control chamber is set.
Be provided with a spring and a supporting pad in above-mentioned control chamber, spring be assemblied in supporting pad and above-mentioned valve interior wall it
Between, supporting pad is located at the side side of above-mentioned inner septum and the control chamber adjoining along middle part.Above-mentioned supporting pad is bonded with the inner septum
The spherical structure setting in fitting side.
Above-mentioned outflow pipeline is provided with pilot valve, and pilot valve is used to control the media flow pressure in effuser road.
Above-mentioned outflow end is provided with an outflow pressure sensor, and outflow pressure sensor is used for the medium of above-mentioned barrier film pressure-reducing valve
Outflow pressure.Above-mentioned pilot valve is automatically controlled pilot valve.
From the above-mentioned description to the utility model structure, compared to the prior art, the utility model has following excellent
Point：
First, barrier through hole cooperation barrier film of the present utility model divides the setting of inner septum and outer barrier film, by medium channel
A medium part import in barrier cavity, so as to increase by one layer of buffering in inner septum and outer barrier film, process is used in pressure-reducing valve
In, situations such as media flow pressure in medium channel becomes big or diminished suddenly, outside active accommodation pressure-reducing valve decompression parameter,
Influenceed by barrier clear size of opening flow etc., the stress reaction for obstructing the medium in cavity will be slow relative to the medium in control chamber
Stagnant, during stress restores balance inside and outside barrier film, the medium obstructed in cavity can reduce elastic portion in pressure-reducing valve
Part stress deformation degree, so as to play a part of accelerate restore balance, lifted the competitiveness of product in market.
Second, barrier film of the present utility model divides inner septum to be set with outer barrier film, is rushed in barrier film by the medium in medium channel
Hit, the spring in control chamber and by feed line enter control chamber medium impact, have between outer barrier film and inner septum
There is cushion space and the two design being separated from each other can make the faster state that restores balance of three impacts.
3rd, barrier film of the present utility model divides inner septum to be set with outer barrier film, in addition, under for example first service condition, is situated between
Pressure transmission to barrier medium and then can just be passed to inner septum by the outer barrier film of media impingement in matter passage, outer barrier film, so as to
Pressuring spring, in the case of single barrier film, barrier film is produced deformation by the media impingement in medium channel, can be driven and is attached thereto
Spring tilt, compression deformation, easily cause the damage of spring.
4th, the setting of spring, supporting pad cooperation barrier film that barrier film pressure-reducing valve of the present utility model uses is simple in construction,
While being easy to produce, assemble, the barrier film pressure-reducing valve just filled can reach use state within the shorter time, save installation and adjust
The time is tried, is easy to installing and using for barrier film pressure-reducing valve.
5th, the support of the fitting side of spherical structure more conforms to hydrodynamics so that it is of the present utility model every
The output pressure regulation process of film pressure-reducing valve can also increase the output pressure regulation of barrier film pressure-reducing valve while more scientific and efficient
Precision.
Brief description of the drawings
Fig. 1 is the structural representation for the barrier film pressure-reducing valve for being equipped with barrier film of the present utility model.
Fig. 2 is the overlooking the structure diagram for the barrier film pressure-reducing valve for being equipped with barrier film of the present utility model.
Fig. 3 is the internal structure schematic diagram for the barrier film pressure-reducing valve for being equipped with barrier film of the present utility model.
Fig. 4 is the mplifying structure schematic diagram of local A in Fig. 3.
Embodiment
Illustrate specific embodiment of the present utility model with reference to the accompanying drawings.
With reference to figure 1, Fig. 2, Fig. 3, a kind of barrier film pressure-reducing valve, including valve body 1, barrier film 2, feed line 31 and outflow pipeline
32, valve body 1 is interior to be provided with the medium channel and fin 12 passed through for medium, and barrier film 2 is relative with fin 12 and sets with being bonded to each other
In the middle part of the medium channel, medium channel is divided into by barrier film 2 with fin 12 according to media flow direction flows into end 41 and outflow
End 42, barrier film 2 is being spherical structure with the binding face being bonded of fin 12.It is closed that one is formed between barrier film 2 and the inwall of valve body 1
Control chamber 5, the connection of feed line 31 flows into end 41 and control chamber 5 is set, and outflow pipeline 32 connects outflow end 42 and control
Chamber 5 is set.The barrier film pressure-reducing valve of present embodiment is preferably used for the pressure-reducing valve in fire main, for ease of description, is situated between
Matter passage is the water stream channel in fire main, and medium is the current in fire main, and pressure medium is hydraulic pressure.Above-mentioned outflow end
42 and flow into end 41 and be equipped with pressure gauge 11, pressure gauge 11 is connected to one and is used to detect outflow end 42 and flows into end
The hydraulic pressure sensor of 41 hydraulic pressure.
With reference to figure 1, Fig. 2, the above-mentioned side wall of valve body 1 offers a control chamber through hole, and the control chamber through hole is attached to a control
Lumen pore lid 51, control chamber port lid 51 are assemblied in control chamber through hole outer with sealing the control chamber through hole.Above-mentioned feed line 31 with
Above-mentioned outflow pipeline 32 intervenes the control chamber 5 by the control chamber port lid 51.Feed line 31 is attached to a stop valve 311,
Stop valve 311 is used to control the current in feed line 31 are logical to close.Outflow pipeline 32 is provided with pilot valve 321, and pilot valve 321 is used for
Control the water flow pressure in effuser road 32.The pilot valve 321 is automatically controlled pilot valve 321, and pilot valve 321 is according to above-mentioned outflow end
The hydraulic pressure that 42 hydraulic pressure sensor is measured adjust outflow pipeline 32 in water flow, so as to adjust the water in outflow end 42
Pressure.
With reference to figure 3, Fig. 4, it is provided with a spring 52 in above-mentioned control chamber 5 and a supporting pad 53, spring 52 is assemblied in support
Between pad 53 and the inwall of above-mentioned valve body 1, supporting pad 53 is located at the above-mentioned middle part of barrier film 2.The deformation direction of spring 52 leads to perpendicular to medium
The media flow direction in road is set.The spherical structure setting in side that above-mentioned supporting pad 53 is bonded with the barrier film 2.The barrier film 2 by
Outer barrier film 21 and inner septum 22 are formed, and outer barrier film 21 is assemblied in control chamber through hole, the side of inner septum 22 edge and control chamber through hole
Outer is bonded and is fixed, sealed by control chamber port lid 51.A barrier is formed between the outer barrier film 21 and inner septum 22 that are independently arranged
Cavity 23.The barrier film 2 is flexible material barrier film 2, and the hardness of outer barrier film 21 is more than the hardness setting of inner septum 22, and inner septum 22 is thick
Degree is set more than the thickness of outer barrier film 21.Inner septum 22, which is located in the middle part of the side wall of side in control chamber 5, is provided with a support protrusion, should
Offer a circular hole being equipped with the support protrusion in the middle part of fitting side, it is convex that supporting pad 53 by the circular hole is sheathed on support
Outside rising, spring 52 is located between supporting pad 53 and control chamber port lid 51.The neighbouring side for flowing into end 41 of outer barrier film 21 offer to
Few barrier through hole 211, barrier through hole 211 extend along the media flow direction in medium channel, and the barrier connection of through hole 211 should
End 41 is flowed into set with barrier cavity 23.Preferably, barrier through hole 211 divides three to open up.Through hole 211 is parallel sets for three barriers
Put.Three obstruct through holes 211 and obstruct a part of import of the medium in medium channel in cavity 23, so as in inner septum 22 and outside
Barrier film 21 increases by one layer of buffering, and during pressure-reducing valve use, the media flow pressure in medium channel becomes big or become suddenly
Situations such as small, outside active accommodation pressure-reducing valve decompression parameter, influenceed, obstructed in cavity 23 by barrier size flow of through hole 211 etc.
Medium stress reaction will relative to the medium sluggishness in control chamber so as to serve as barrier medium use.
With reference to figure 3, above-mentioned different hardness and thickness inner septum 22 and the structure setting of outer barrier film 21, in such as barrier film
Pressure-reducing valve uses, when the water pressure fluctuations in pipe-line system for the first time, and harder outer barrier film 21 can preferably bear current
Impact, reduce deformation caused by the part of barrier film 2 is impacted.And softer thicker inner septum 22 is set, impact energy can be absorbed
Amount plays a part of bradyseism energy-absorbing, so that being capable of the balance of quickly restoring force inside barrier film pressure-reducing valve.Furthermore in this kind
Barrier film 22, which is set, to protect barrier film 2 to be impacted from supporting pad 53 under water impact, inner septum 22 and outer barrier film 21 assembling position
Difference is put, after thickness hardness is also different, therefore both pads 53 supported are propped up, is existed between inner septum 22 and the surrounding of outer barrier film 21
Certain space, deformation space is left after being hit to outer barrier film 21, this will also lift the durability and performance of product.
With continued reference to Fig. 3, above-mentioned fin 12 circumferentially extends in crescent shape along the above-mentioned inwall of valve body 1 to be set.Above-mentioned fin 12
The vertical medium channel of bearing of trend in media flow direction set.Fin 12 is in the deformation side of spring 52 and set up.
The above-mentioned bottom surface of fin 12 located at the above-mentioned inwall of valve body 1 and along the inwall of valve body 1 circumferentially extend set, the top surface of fin 12 along it is above-mentioned every
The axis of film 2 extends and is bonded setting with the barrier film 2, and the axis of barrier film 2 is that barrier film 2 is located normal to medium in above-mentioned medium channel
Axis on flow direction.The top surface of fin 12 is adjacent to the side of the above-mentioned side of outflow end 42 edge, the axis of barrier film 2 and fin 12
For top surface adjacent to the side of the above-mentioned side of inflow end 41 along being respectively in three parallel planes arranged successively, the top surface of fin 12 is neighbouring
The distance of plane where the side of the side of outflow end 42 along place plane and the axis of barrier film 12 is more than the neighbouring inflow end of the top surface of fin 12
The distance of plane is set where the side of 41 sides along place plane and the axis of barrier film 12.
With continued reference to Fig. 3, fin 12 is in the deformation side of spring 52 and set up when can be filled at the beginning of barrier film pressure-reducing valve,
Fin 12 coordinates barrier film 2 to have certain barrier effect, medium to the flow of media in medium channel in the presence of spring 52
During entering medium channel for the first time, influenceed by the structure, more into feed line 31, so as to make barrier film pressure-reducing valve
Quickly enter use state.And said structure, during the adjustment of barrier film pressure-reducing valve pressure, the booster action of spring 52 can
To accelerate adjustment process.The top surface both sides side of fin 12 can make barrier film 2 be flowed along apart from the different setting of the axial location of barrier film 2
Enter the hydraulic pressure before 41 do not depressurize of end to impact as having a supporting role power when direction of outflow end 42 offset, so that more science
The impulsive force that ground distribution barrier film 2 is subject to, protection spring 52 will not deviate barrier film axial location, or even damage due to the impact.Should
The top surface of fin 12 is the ring-type spherical structure of a substantially indent, and the both sides side of fin 12 is neighbouring by 12 liang of lateral fins 12 of fin
The guide curve surface structure of the top surface inclination of barrier film 2, the structure can be in the case where current first pass or hydraulic pressure change, by water
Pressure is oriented to the barrier film 2 with energy-absorbing bradyseism, reduces impact of the hydraulic pressure to water pipeline.The above-mentioned barrier film 2 of the respective outer side edges of fin 12
Structure, it can effectively lift the degree of regulation of barrier film pressure-reducing valve, strengthen the voltage regulation performance of barrier film pressure-reducing valve.This kind of frame mode knot
Structure is simple, the outflow end easy to assembly and can receiving bigger interval range for flowing into the hydraulic pressure of end 41, exporting bigger interval range
42 hydraulic pressure, or even above-mentioned medium channel can be completely closed, under case of emergency, it can be used as the valve of cut-off water channel.
Above-mentioned fin 12 is in the deformation side of spring 52 and sets up the setting for coordinating two layers of barrier film 2, and inner septum 22 is by bullet
The effect of spring 52 and hydraulic pressure in control chamber 5 deforms upon towards the position of fin 12, and pressure is transferred to barrier medium by inner septum 22
Outer barrier film 21 is arrived again, and during product use, outer barrier film 21 flows into the hydraulic pressure shadow before the side of end 41 is depressurized neighbouring
Under sound, outer barrier film 21 tilts towards the neighbouring side of end 41 that flows into, and inner septum 22 is blocked the setting of dielectric separates with outer barrier film 21
Can ensure between inner septum 22 and outer barrier film 21 exist buffering, outer barrier film 21 will not related inner septum 22 deform upon（Subtract
Gently spring 52 is pullled toward the direction of end 41 is flowed into）, and because the reaction for obstructing medium relatively lags behind, outer barrier film 21 it is local by
During pressure is transferred to inner septum 22, medium can be blocked and spread active force, reduce shadow of the local compression to inner septum 22
Ring, make the stress of inner septum 22 more science.
Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, all should belong to the row for invading scope of protection of the utility model
For.
Claims (7)
1. a kind of barrier film for pressure-reducing valve, barrier film is assemblied in the valve body of barrier film pressure-reducing valve, and barrier film will be divided into Jie in valve body
Matter passage and closed control chamber, it is characterised in that：Including the inner septum being independently arranged and outer barrier film, outer barrier film and medium
Passage is provided adjacent to, and inner septum is provided adjacent to control chamber, and a barrier cavity is formed between inner septum and outer barrier film；It is described it is outer every
Film offers at least one barrier through hole, and barrier through hole connects the medium channel and set with the barrier cavity.
A kind of 2. barrier film for pressure-reducing valve according to claim 1, it is characterised in that：Assemble the decompression of the barrier film
Valve, including valve body, the barrier film, feed line and outflow pipeline, valve body is interior to be provided with the medium channel, and barrier film is assemblied in Jie
The control chamber is formed in matter passage, between barrier film and valve interior wall, control chamber is by medium channel according to media flow direction point
To flow into end and outflow end, feed line connection flows into end and control chamber is set, and flows out pipeline connection outflow end and control
Chamber processed is set.
A kind of 3. barrier film for pressure-reducing valve according to claim 2, it is characterised in that：Described in the barrier through hole connection
End is flowed into set with the barrier cavity.
A kind of 4. barrier film for pressure-reducing valve according to claim 3, it is characterised in that：Given an account of on the barrier through hole edge
Media flow direction in matter passage is extended.
A kind of 5. barrier film for pressure-reducing valve according to claim 2, it is characterised in that：A bullet is provided with the control chamber
Spring and a supporting pad, spring are assemblied between supporting pad and the valve interior wall, and supporting pad is located at the inner septum and the control
The side side of chamber processed adjoining is along middle part；The spherical structure setting in fitting side that the supporting pad is bonded with the inner septum.
A kind of 6. barrier film for pressure-reducing valve according to claim 5, it is characterised in that：The outflow pipeline is provided with guide
Valve, pilot valve are used to control the media flow pressure in effuser road.
A kind of 7. barrier film for pressure-reducing valve according to claim 6, it is characterised in that：The outflow end is provided with an outflow
Pressure sensor, outflow pressure sensor are used for the medium outflow pressure of the barrier film pressure-reducing valve；The pilot valve is automatically controlled elder generation
Pilot valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426374.9U CN206874879U (en) | 2017-04-21 | 2017-04-21 | A kind of barrier film for pressure-reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426374.9U CN206874879U (en) | 2017-04-21 | 2017-04-21 | A kind of barrier film for pressure-reducing valve |
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| Publication Number | Publication Date |
|---|---|
| CN206874879U true CN206874879U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426374.9U Active CN206874879U (en) | 2017-04-21 | 2017-04-21 | A kind of barrier film for pressure-reducing valve |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869785A (en) * | 2018-08-06 | 2018-11-23 | 中国计量大学 | A kind of double diaphragm counterbalance valves |
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
| CN112302835A (en) * | 2020-11-11 | 2021-02-02 | 江西昌河汽车有限责任公司 | Integrated carbon tank |
-
2017
- 2017-04-21 CN CN201720426374.9U patent/CN206874879U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869785A (en) * | 2018-08-06 | 2018-11-23 | 中国计量大学 | A kind of double diaphragm counterbalance valves |
| CN110578806A (en) * | 2019-09-30 | 2019-12-17 | 上海龙猛机械有限公司 | Shock attenuation back pressure valve |
| CN110578806B (en) * | 2019-09-30 | 2024-04-05 | 上海龙猛机械有限公司 | Damping back pressure valve |
| CN112302835A (en) * | 2020-11-11 | 2021-02-02 | 江西昌河汽车有限责任公司 | Integrated carbon tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180516 Address after: 362000 Maoming Road, Fu Mao Industrial Park, Nanan Economic Development Zone, Quanzhou, Fujian Patentee after: Fujian whale Fire Control Co., Ltd. Address before: 362300 Maoming Road, Fu Mao Industrial Park, Nanan Economic Development Zone, Quanzhou, Fujian, China Patentee before: FUJIAN SANJING FIRE-FIGHTING EQUIPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |