CN110043686A - A kind of guide's diaphragm pressure reduction valve - Google Patents
A kind of guide's diaphragm pressure reduction valve Download PDFInfo
- Publication number
- CN110043686A CN110043686A CN201910273223.8A CN201910273223A CN110043686A CN 110043686 A CN110043686 A CN 110043686A CN 201910273223 A CN201910273223 A CN 201910273223A CN 110043686 A CN110043686 A CN 110043686A
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- intake channel
- guide
- exit passageway
- pressure reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 33
- 238000007789 sealing Methods 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 16
- 238000011084 recovery Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- 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
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
-
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
-
- 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
- F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
- F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
- F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
- F16K7/17—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being actuated by fluid pressure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of guide's diaphragm pressure reduction valves, it includes valve body, exit passageway and intake channel are offered in valve body, intake channel and exit passageway open up relatively, spacer body is provided between intake channel and exit passageway, diaphragm is provided with above spacer body, diaphragm is arc concave configuration, the lower surface of diaphragm, which is connected on spacer body, closes intake channel and exit passageway, cover board is provided with above the diaphragm, side edge thereof is fixed on valve body, and the edge of diaphragm is clipped between cover board and valve body, and control chamber is formed between cover board and diaphragm；The outside of valve body is provided with pilot valve, and the import of pilot valve is connected to control chamber, and the outlet of pilot valve is connected to exit passageway, and connecting tube is connected on the outside of valve body, and one end of connecting tube is connected to control chamber, and the other end is connected to intake channel.The present invention has components less, the simple effect of structure.
Description
Technical field
The present invention relates to a kind of technical fields of pressure reducing valve, more particularly, to a kind of guide's diaphragm pressure reduction valve.
Background technique
Pressure reducing valve is inlet pressure to be reduced to the outlet pressure of a certain needs, and by the energy of medium itself by adjusting
Amount, makes outlet pressure automatically keep stable valve.From the viewpoint of hydrodynamics, pressure reducing valve is that a local resistance can become
The restricting element of change changes the kinetic energy of flow velocity and fluid, causes the different pressure losses that is, by change orifice size, from
And achieve the purpose that decompression.By the adjusting of control and regulating system, the fluctuation of downstream pressure is set to balance each other with elastic force, after making valve
Pressure is kept constant in certain error range.
A kind of piloted reducer is disclosed in the patent document that Authorization Notice No. is CN207848519U, including valve body,
Interior valve deck, bonnet, push plate, ring film, valve seat, spool, pilot sleeve, spring, valve rod；Interior valve deck is mounted on bonnet,
Valve body top, and cavity is formed between interior valve deck and bonnet, ring film is connect with push plate outer edge, and is located in internal valve
Between lid, bonnet, cavity is separated into upper chamber and lower chambers；Intake channel, exit passageway, interior valve deck are formed in valve body
On be formed with through-hole connection lower chambers and exit passageway；Valve seat is fixedly mounted in valve body, and is located at intake channel and is exported logical
At communication port between road, spool is arranged in valve body, and its lower end can cooperate with valve base sealing；Pilot sleeve passes through interior valve deck,
Slide and cooperate with interior valve deck, and pilot sleeve both ends are respectively held against push plate and spool, both ends of the spring be then respectively held against bonnet, with
Push plate, and drive push plate downward；Valve rod is arranged in pilot sleeve, and its both ends is separately connected spool and push plate；Intake channel
It is connected with external pipe between exit passageway, needle valve, triple valve, pilot valve are successively arranged on external pipe, needle valve connects
Intake channel is passed through, pilot valve is connected to exit passageway, and triple valve is connected to upper chamber, the normally opened setting of pilot valve, and passes through pressure pipe
Connection outlet channel.
The components that valve opening and closing in above structure between intake channel and exit passageway uses are more, and structure compares
It is complicated.
Summary of the invention
The object of the present invention is to provide a kind of guide's diaphragm pressure reduction valves, and less with components, structure is simply imitated
Fruit.
Foregoing invention purpose of the invention has the technical scheme that
A kind of guide's diaphragm pressure reduction valve, including valve body, offer exit passageway and intake channel in valve body, intake channel and go out
Mouth channel is opposite to be opened up, and spacer body is provided between intake channel and exit passageway, diaphragm, diaphragm are provided with above spacer body
For arc concave configuration, the lower surface of diaphragm, which is connected on spacer body, closes intake channel and exit passageway, the diaphragm it is upper
Side is provided with cover board, and side edge thereof is fixed on valve body, and the edge of diaphragm is clipped between cover board and valve body, cover board and diaphragm
Between form control chamber；The outside of valve body is provided with pilot valve, and the import of pilot valve is connected to control chamber, the outlet of pilot valve with
Exit passageway is connected to, and is connected with connecting tube on the outside of valve body, one end of connecting tube is connected to control chamber, the other end and intake channel
Connection.
By using above-mentioned technical proposal, in use, open up exit passageway and intake channel in valve body, exit passageway and into
Mouthful channel forms control chamber by diaphragm seal between diaphragm and cover board, from the liquid in intake channel by connecting tube into
Enter to control chamber and be passed into the entrance of pilot valve, and the outlet of pilot valve is connected to exit passageway, thus in exit passageway
After pressure rise, pilot valve carries out throttling increase to it, and the pressure rise in control chamber, makes the liquid in control chamber to diaphragm
Downward extruding force increases, to increase the liquid throttling action flowed through between diaphragm and spacer body, and then it is logical to reduce outlet
The pressure in road makes its structure pass through the arc diaphragm of concave configuration, reduces complexity, and structure is simple.
The present invention is further arranged to: the diaphragm includes rubber layer one, reinforces liner and rubber layer two, reinforces liner position
Between rubber layer one and rubber layer two.
By using above-mentioned technical proposal, diaphragm includes rubber layer one and rubber layer two, and is arranged in one He of rubber layer
Reinforcement liner between rubber layer two increases the coefficient of elasticity of diaphragm entirety by reinforcing liner, and diaphragm is in deformation-recovery
It is good.
The present invention is further arranged to: the rubber layer one and rubber layer two are nitrile rubber.
By using above-mentioned technical proposal, rubber layer one and rubber layer two are nitrile rubber, corrosion-resistant, service life
It is long, and its better tightness to liquid.
The present invention is further arranged to: support bar is provided in the valve body, support bar is parallel to exit passageway, support bar
Diaphragm is used to support below diaphragm.
By using above-mentioned technical proposal, support bar is parallel to exit passageway, and support bar is supported on the lower section of diaphragm, make every
It is preferable that film such as carries out at sub-supports, the deformation of diaphragm vertical direction under the action of support bar and spacer body.
The present invention is further arranged to: the lower surface of the diaphragm is provided with fin, and fin extends along the surface of diaphragm,
The sealing surface of fin face spacer body.
By using above-mentioned technical proposal, fin is arranged in the lower surface of diaphragm, fin when with sealing face contact, fin
Deflection is big, thus to the better tightness between diaphragm and sealing surface, simultaneously because, the section of fin is smaller, beats in diaphragm
When opening, it is easy quickly to open intake channel with exit passageway.
The present invention is further arranged to: the upper surface of the diaphragm is provided with reinforcing rib, and reinforcing rib is parallel to fin, reinforces
Muscle is located at the surface of fin.
By using above-mentioned technical proposal, the upper surface of diaphragm is arranged reinforcing rib, reinforcing rib can parallel fins setting, add
Strong disk is located at the positive direction of fin, and reinforcing rib is supported diaphragm in the inside of diaphragm, improves sealing of the diaphragm to sealing surface.
The present invention is further arranged to: air vent is offered on the cover board, air vent internal screw thread is connected with plug screw.
By using above-mentioned technical proposal, air vent is offered on cover board, when seated, is opened plug screw, is made under cover board
It is hydraulically full in control chamber, the gas in control chamber is got, then plug screw is threaded in air vent again, prevents control chamber
Interior gas is on pressure controlled influence.
The present invention is further arranged to: hand valve is provided in the connecting tube.
By using above-mentioned technical proposal, hand valve is set in connecting tube, closes hand valve, connecting tube disconnects, and makes intake channel
Interior liquid flows stopping into control chamber, flows directly out the liquid in intake channel without throttling, when opening, connecting tube
Interior liquid, which flows, to be restored, and throttling is realized, so as to more easily control it.
The present invention is further arranged to: the connecting tube is connected with filter close to one end of intake channel.
By using above-mentioned technical proposal, filter is arranged close to one end of intake channel in connecting tube, and filter is to import
Channel is flowed into the liquid in control chamber and is filtered, and reduces liquid and is entering in pilot valve to the stopping state of pilot valve
Occur.
The present invention is further arranged to: the intake channel is connected with pressure gauge.
By using above-mentioned technical proposal, intake channel is connected with pressure gauge, facilitates staff to check by pressure gauge
Pressure in intake channel.
In conclusion advantageous effects of the invention are as follows:
1. exit passageway and intake channel are by diaphragm seal, in diaphragm by opening up exit passageway and intake channel in valve body
Control chamber is formed between cover board, enters control chamber by connecting tube from the liquid in intake channel and is passed into pilot valve
Entrance, and the outlet of pilot valve is connected to exit passageway, so that pilot valve saves it after exit passageway pressure rise
Stream increases, and the pressure rise in control chamber, and the extruding force for keeping the liquid in control chamber downward to diaphragm increases, thus to flowing through
Liquid throttling action between diaphragm and spacer body increases, and then reduces the pressure of exit passageway, its structure is made to pass through recessed knot
The arc diaphragm of structure, reduces complexity, and structure is simple；
2. including rubber layer one and rubber layer two by diaphragm, and in the reinforcement being arranged between rubber layer one and rubber layer two
Lining increases the coefficient of elasticity of diaphragm entirety by reinforcing liner, and diaphragm is good in deformation-recovery；
3. filter is flowed into control chamber intake channel by the way that filter is arranged close to one end of intake channel in connecting tube
Liquid be filtered, reduce liquid entering the generation in pilot valve to the stopping state of pilot valve.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of valve body；
Fig. 2 is main view of the invention；
Fig. 3 is left view of the invention.
In figure, 1, valve body；11, exit passageway；12, intake channel；13, spacer body；131, sealing surface；2, diaphragm；21, rubber
Glue-line one；22, reinforce liner；23, rubber layer two；3, cover board；31, air vent；32, plug screw；4, control chamber；5, fin；6, add
Strengthening tendons；7, support bar；8, pilot valve；9, connecting tube；91, pressure gauge；92, filter；93, hand valve.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It is a kind of guide's diaphragm pressure reduction valve disclosed by the invention with reference to Fig. 1, including valve body 1, the inside of valve body 1 open up
There are exit passageway 11 and intake channel 12, spacer body 13 is provided between exit passageway 11 and intake channel 12, spacer body 13
Downside is for separating exit passageway 11 and intake channel 12, exit passageway 11 and intake channel 12 is on the same line and phase
To opening up, make spacer body 13 perpendicular to exit passageway 11 and intake channel 12, the top of spacer body 13 is provided with diaphragm 2, every
Film 2 is hemisphere face shape, and the lower surface of diaphragm 2 is recessed downwards, and the upper side edge of spacer body 13 is sealing surface 131, sealing surface 131 along
Camber is arranged in the lower surface of diaphragm 2, be connected to the lower surface of diaphragm 2 can on sealing surface 131, thus using diaphragm 2 to out
Mouth channel 11 and intake channel 12 are separated.When diaphragm 2 is separated with sealing surface 131, exit passageway 11 and intake channel 12 connect
Logical, liquid can enter in exit passageway 11 from intake channel 12.
With reference to Fig. 1, the top of diaphragm 2 is provided with cover board 3, the edge seal of cover board 3 is fixed on valve body 1, and is covered
The edge that diaphragm 2 is clipped between 3 edge of plate and valve body 1, is fixed on diaphragm 2 on valve body 1, and the top of diaphragm 2 and cover board 3
Lower section formed sealing control chamber 4.When the lower section of diaphragm 2 is by hydraulic extruding force, flexible deformation occurs for diaphragm 2, makes
Direction distortion from diaphragm 2 to control chamber 4, so that diaphragm 2 is separated with sealing surface 131.
With reference to Fig. 1, diaphragm 2 includes rubber layer 1, reinforces liner 22 and rubber layer 2 23, rubber layer 1 and rubber layer
2 23 be nitrile rubber, and diaphragm 2 is followed successively by rubber layer 1 from top to bottom, reinforces liner 22 and rubber layer 2 23.By adding
Strong liner 22 reinforces rubber layer 1 and rubber layer 2 23, improves the integral, flexible coefficient of diaphragm 2, to reduce its cross
To deformation, under the pressure of water flow, the deformation direction of diaphragm 2 has preferable vertical deformation.
With reference to Fig. 1 and Fig. 3, fin 5 is provided on the lower surface of diaphragm 2, fin 5 and rubber layer 2 23 are wholely set shape
At fin 5 extends along the surface of diaphragm 2, and the sealing surface 131 of 5 lower section face spacer body 13 of fin makes fin 5 and sealing surface
131 abut, and than faster when enabling the opening of sealing surface 131 and diaphragm 2, and in sealing, the deformation of fin 5 is easier
It is formed and is sealed with sealing surface 131.The upper surface of diaphragm 2 is provided with reinforcing rib 6, and reinforcing rib 6 is parallel to the setting of fin 5, and adds
Strengthening tendons 6 are located at the surface of fin 5, and reinforcing rib 6 can will reinforce diaphragm 2 and the position of 131 face of sealing surface, improve
Its coefficient of elasticity, when sealing diaphragm 2 and sealing surface 131, sealing effect is more preferable.It is additionally provided with support bar 7 in valve body 1, supports
Item 7 is parallel to exit passageway 11, and the lower section that support bar 7 is located at diaphragm 2 is used to support in the lower surface of diaphragm 2, prevent diaphragm 2 to
The deformation in 12 direction of exit passageway 11 or intake channel.
Referring to figs. 2 and 3, the outside of valve body 1 is provided with pilot valve 8, the inlet pressure of pilot valve 8 is less than outlet pressure
The import of power, pilot valve 8 is connected in control chamber 4 by pipeline, and the outlet of pilot valve 8 is connected to exit passageway 11 by pipeline
On, keep the outlet pressure of pilot valve 8 identical as the pressure on exit passageway 11.The outside of valve body 1 is provided with connecting tube 9,
One end of connecting tube 9 is connected to control chamber 4, and the other end is connected to intake channel 12, makes the pressure and intake channel 12 of control chamber 4
Pressure it is identical, and make pilot valve 8 inlet pressure be equal to intake channel 12 in pressure, be connected on intake channel 12
Pressure gauge 91 detects pressure gauge 91 to the pressure of intake channel 12.Connecting tube 9 is arranged close to one end of intake channel 12
There is filter 92, reduces liquid impurity and enter in pilot valve 8, pilot valve 8 is caused to block；Simultaneously in connecting tube 9 close to control
One end of chamber 4 is provided with hand valve 93, and staff is facilitated to close connecting tube 9 from outside.
With reference to Fig. 1 and Fig. 2, air vent 31 is offered on cover board 3,31 internal screw thread of air vent is connected with plug screw 32, passes through
Plug screw 32 blocks air vent 31, during installation, first opens plug screw 32, makes gas in control chamber 4 all after discharge, then by spiral shell
Plug 32 is connected in air vent 31, hydraulically full in control chamber 4 so as to make.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of guide's diaphragm pressure reduction valve, it is characterised in that: including valve body (1), offer exit passageway (11) in valve body (1)
With intake channel (12), intake channel (12) and exit passageway (11) open up relatively, intake channel (12) and exit passageway (11)
Between be provided with spacer body (13), be provided with above spacer body (13) diaphragm (2), diaphragm (2) be arc concave configuration, diaphragm
(2) lower surface, which is connected on spacer body (13), closes intake channel (12) and exit passageway (11), the top of the diaphragm (2)
It is provided with cover board (3), cover board (3) edge is fixed on valve body (1), and the edge of diaphragm (2) is clipped in cover board (3) and valve body
(1) between, control chamber (4) are formed between cover board (3) and diaphragm (2)；The outside of valve body (1) is provided with pilot valve (8), pilot valve
(8) import is connected to control chamber (4), and the outlet of pilot valve (8) is connected to exit passageway (11), the outside connection of valve body (1)
Have connecting tube (9), one end of connecting tube (9) is connected to control chamber (4), and the other end is connected to intake channel (12).
2. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: the diaphragm (2) includes rubber
Liner (22) and rubber layer two (23) are reinforced in one (21) of layer, reinforce liner (22) and are located at rubber layer one (21) and rubber layer two
(23) between.
3. a kind of guide's diaphragm pressure reduction valve according to claim 2, it is characterised in that: the rubber layer one (21) and rubber
Glue-line two (23) is nitrile rubber.
4. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: be provided in the valve body (1)
Support bar (7), support bar (7) are parallel to exit passageway (11), and support bar (7), which is located at below diaphragm (2), is used to support diaphragm
(2)。
5. a kind of guide's diaphragm pressure reduction valve according to claim 1 to 4, it is characterised in that: the diaphragm (2)
Lower surface is provided with fin (5), and fin (5) extends along the surface of diaphragm (2), the sealing of fin (5) face spacer body (13)
Face (131).
6. a kind of guide's diaphragm pressure reduction valve according to claim 5, it is characterised in that: the upper surface of the diaphragm (2)
It is provided with reinforcing rib (6), reinforcing rib (6) is parallel to fin (5), and reinforcing rib (6) is located at the surface of fin (5).
7. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: offered on the cover board (3)
Air vent (31), air vent (31) internal screw thread are connected with plug screw (32).
8. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: be arranged on the connecting tube (9)
There are hand valve (93).
9. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: the connecting tube (9) close into
The one end in mouth channel (12) is connected with filter (92).
10. a kind of guide's diaphragm pressure reduction valve according to claim 1, it is characterised in that: the intake channel (12) is even
It is connected to pressure gauge (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273223.8A CN110043686A (en) | 2019-04-04 | 2019-04-04 | A kind of guide's diaphragm pressure reduction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910273223.8A CN110043686A (en) | 2019-04-04 | 2019-04-04 | A kind of guide's diaphragm pressure reduction valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043686A true CN110043686A (en) | 2019-07-23 |
Family
ID=67276213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910273223.8A Pending CN110043686A (en) | 2019-04-04 | 2019-04-04 | A kind of guide's diaphragm pressure reduction valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043686A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203264132U (en) * | 2013-05-08 | 2013-11-06 | 浙江港龙消防机械有限公司 | Raining alarm valve |
| CN206637074U (en) * | 2017-04-21 | 2017-11-14 | 福建省三鲸消防器材有限公司 | A kind of barrier film pressure-reducing valve |
| CN206845975U (en) * | 2017-04-17 | 2018-01-05 | 上海阀门五厂有限公司 | The rigidly connected middle flange arrangement component of flange in a kind of achievable diaphragm valve |
| CN209876018U (en) * | 2019-04-04 | 2019-12-31 | 北消安全设备(北京)有限公司 | Pilot diaphragm type pressure reducing valve |
-
2019
- 2019-04-04 CN CN201910273223.8A patent/CN110043686A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203264132U (en) * | 2013-05-08 | 2013-11-06 | 浙江港龙消防机械有限公司 | Raining alarm valve |
| CN206845975U (en) * | 2017-04-17 | 2018-01-05 | 上海阀门五厂有限公司 | The rigidly connected middle flange arrangement component of flange in a kind of achievable diaphragm valve |
| CN206637074U (en) * | 2017-04-21 | 2017-11-14 | 福建省三鲸消防器材有限公司 | A kind of barrier film pressure-reducing valve |
| CN209876018U (en) * | 2019-04-04 | 2019-12-31 | 北消安全设备(北京)有限公司 | Pilot diaphragm type pressure reducing valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076409A (en) * | 2022-08-11 | 2022-09-20 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
| CN115076409B (en) * | 2022-08-11 | 2022-11-08 | 中国空气动力研究与发展中心设备设计与测试技术研究所 | Multi-petal type isolation water valve |
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