CN109162669A - A kind of oil field high pressure well valve - Google Patents
A kind of oil field high pressure well valve Download PDFInfo
- Publication number
- CN109162669A CN109162669A CN201811298049.4A CN201811298049A CN109162669A CN 109162669 A CN109162669 A CN 109162669A CN 201811298049 A CN201811298049 A CN 201811298049A CN 109162669 A CN109162669 A CN 109162669A
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- Prior art keywords
- valve
- valve body
- oil
- driving crank
- fixedly connected
- Prior art date
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- 239000012530 fluid Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 239000004519 grease Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000144 pharmacologic effect Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of oil field high pressure well valves, it is related to valve technology field, specifically include the valve body that both ends offer oil inlet and oil outlet respectively, the fixed draining portion for being connected to body base, the valve seat that is fixedly installed in above valve body and runs through valve seat and extend to the valve rod of body cavity, the inner sidewall of the valve body is fixedly connected with guided way, and the lower inner sidewall of the valve body offers seal groove.Oil field high pressure well valve, pass through setting driving crank, driving crank and pressure sleeve cooperation, utilize lever principle, push driving crank, driving crank can be driven to rotate down, make pressure sleeve that valve rod be pulled to move up along guide sleeve, to control the promotion and decline of valve rod, it is controlled without spiral, avoid soil and sandstone in oil field that from may being brought into spiral in valve rod rotary course, cause spiral to block, influences the problem of valve works normally, effectively improve the stability of the well valve working.
Description
Technical field
The present invention relates to valve technology field, specially a kind of oil field high pressure well valve.
Background technique
High pressure valve be widely used in superhard material manufacture, chemical industry, petrochemical industry, processing technology, etc. static pressure
Processing, ultra-high static pressure extruding, powder metallurgy, metal forming and the fields such as geophysics and geology pharmacological research, can be used for controlling
Make the various types fluids such as empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radiating medium
Flowing, opening and closing element is a discoidal valve plate, is rotated in valve body around the axis of its own, to reach opening and closing or adjusting
Purpose.
Oil field is mainly used for the transmission of control oil pipe with high pressure well valve, since oil pipe is embedded under oil field more, leads to oil
Field is severe with the working environment of high pressure well valve, and existing oil field high pressure well valve has following lack in actual use
Fall into: 1. existing oil field high pressure well valves are mostly the promotion and decline that valve rod is controlled by spiral, soil in oil field and
Sandstone may be brought into spiral in valve rod rotary course, and spiral is caused to block, influence valve normal work, stability compared with
Difference；2. existing oil field high pressure well valve reseting spring is mostly to be located at valve internal, after being used for multiple times, it is easy to appear rebound
Fatigue influences the service life of valve；3. when winter, the moisture content in oil field is higher, it is easy to freeze at valve, causes valve rod can not
Normal control spool switch, influences the normal transmission of oil pipe.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of oil field high pressure well valve, above-mentioned background is solved
The problem of being proposed in technology.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of oil field high pressure well valve,
Offer the valve body of oil inlet and oil outlet respectively including both ends, the fixed draining portion for being connected to body base is fixedly installed in
Valve seat above valve body and run through valve seat and extend to the valve rod of body cavity, the inner sidewall of the valve body is fixedly connected with guiding
Rail, the lower inner sidewall of the valve body offer seal groove, and the top of the valve body is fixed to be communicated with adjusting cavity, the draining portion packet
Draining bottom cover and the adjustable column for being threadedly connected to draining bottom cover bottom are included, the top of the adjustable column is run through and extends to draining bottom
The inner cavity of lid, one end that the adjustable column is located at draining bottom cover inner cavity are fixedly connected with sealing-plug, and the bottom of the adjustable column is solid
Surely it is connected with turning handle, the draining portion is connected by the top of draining bottom cover with the bottom of valve body, and the valve seat includes lower valve
Seat, the upper valve base being fixedly installed in above lower valve base, both ends are connected with the lower surface of the upper surface of lower valve base and upper valve base respectively
The connecting column connect and the pressure sleeve being movably installed between lower valve base and upper valve base, the bottom of the lower valve base, which is fixedly connected with, leads
To set, it is connected at the top of the bottom of the guide sleeve and valve body, the pressure sleeve is fixedly attached with valve rod, the pressure sleeve
Outside is fixedly connected with crank base, and driving crank, the outside rotation of the lower valve base are rotatably connected on the inside of the crank base
It is connected with driving crank, the driving crank and driving crank are rotatablely connected, and the valve rod and guide sleeve are rotatablely connected, the valve
One end that bar is located at body cavity is fixedly connected with connector sleeve, and connecting rod, the company are fixedly connected on the outside of the connector sleeve
Extension bar is fixedly connected with spool far from one end of connector sleeve, and the spool is slidably connected with guided way, and the top of the valve rod is passed through
The top of valve seat is worn and extends to, the valve rod, which is located at the riveting of one end at the top of valve seat, rivet, and the valve rod is located at valve seat top
The outer surface thread in portion is connected with upper end cover, and outer surface of the valve rod between upper valve base and upper end cover is socketed with reset bullet
Spring.
Optionally, the inner cavity of adjusting cavity, the bottom of the spool and seal groove are run through and extended in the top of the spool
It is mutually clamped, the quantity of the spool is two, and two spools are distributed in body cavity as axial symmetry using the middle line of valve rod
Two sides.
Optionally, the bottom end of the reset spring is fixedly connected with the upper surface of upper valve base, the top of the reset spring
It is in contact with the lower surface of upper end cover.
Optionally, the adjusting cavity is located at the surface of guided way, and the inner orbit phase of the inner cavity of adjusting cavity and guided way
Connection.
Optionally, the draining bottom cover is in funnel shaped, and the outer surface of the draining bottom cover offers two or more let out
Oilhole, the aperture value of the oil leak hole are 1.2cm.
Optionally, the oil inlet and oil outlet are connected with the inner cavity of valve body, and the outer of oil inlet and oil outlet
It is respectively welded connecting flange.
Optionally, shaft is fixedly connected at the one third length of the driving crank, the driving crank is by turning
Axis and driving crank are rotatablely connected.
Optionally, the sealing-plug is in truncated conical shape, and the outer surface of sealing-plug and the inner sidewall of draining bottom cover mutually agree with,
The sealing-plug is by the lumen blockage of oil leak hole and draining bottom cover.
Optionally, the rivet is located at the top of upper end cover, and the diameter value at the top of rivet is greater than the straight of valve rod cross section
Diameter value.
The present invention provides a kind of oil field high pressure well valve, have it is following the utility model has the advantages that
1, oil field high pressure well valve is cooperated by setting driving crank, driving crank and pressure sleeve, utilizes lever
Principle pushes driving crank, driving crank can be driven to rotate down, and makes pressure sleeve that valve rod be pulled to move up along guide sleeve,
To control the promotion and decline of valve rod, is controlled without spiral, avoid soil and sandstone in oil field that from may rotating through in valve rod
It is brought into spiral in journey, spiral is caused to block, influenced the problem of valve works normally, effectively improve the well valve working
Stability, while increasing torque using crank structure, keep the control of valve more laborsaving.
2, reset spring can be limited to by oil field high pressure well valve by setting upper valve base and rivets
Outside valve, it is convenient for changing the reset spring of rebound fatigue, effective solution existing oil field high pressure well valve reset
Spring is mostly to be located at valve internal, after being used for multiple times, is easy to appear rebound fatigue, it has not been convenient to replace, influence valve service life
The problem of, upper end cover is set, upper end cover is rotated, upper end cover position in the horizontal direction can be adjusted along valve rod, to adjust pressure
It is tight or relaxation reset spring, guarantee reset spring can normal control spool reset, further increase valve service life.
3, oil field high pressure well valve is cooperated by setting spool, guided way and seal groove, can separate oil inlet
And oil outlet, when guaranteeing that valve is closed, it is in closed state between two spools, prevents from intaking between two spools, avoids the winter
The moisture content of Ji Shi, oil field are higher, are easy to freeze at valve, cause valve rod can not normal control spool switch the problem of, effectively
Guarantee the normal transmission of oil pipe, draining bottom cover and adjustable column cooperation are set, rotates adjustable column upwards, makes sealing-plug and draining bottom cover
Inner sidewall separation, lets out the grease stayed between two spools to can release along oil leak hole, prevents there is oil between two spools
Water, further increases the stability of tubing transmission at the problem of causing valve rod to freeze.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is valve-closed state schematic cross-sectional view of the present invention；
Fig. 3 is valve opening state schematic cross-sectional view of the present invention；
Fig. 4 is valve seat schematic cross-sectional view of the present invention；
Fig. 5 is valve body schematic cross-sectional view of the present invention.
In figure: 1, valve body；11, connecting flange；12, adjusting cavity；13, oil inlet；14, oil outlet；15, guided way；16, close
Sealing groove；2, draining portion；21, draining bottom cover；210, oil leak hole；22, adjustable column；220, turning handle；221, sealing-plug；3, guide sleeve；
4, valve seat；41, lower valve base；410, driving crank；42, upper valve base；43, connecting column；44, pressure sleeve；440, crank base；441, it passes
Dynamic crank；5, valve rod；51, upper end cover；52, connector sleeve；53, connecting rod；54, spool；6, reset spring；7, rivet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Fig. 1 to Fig. 5 is please referred to, the present invention provides a kind of technical solution: a kind of oil field high pressure well valve, including both ends
The valve body 1 of oil inlet 13 and oil outlet 14 is offered respectively, and the fixed draining portion 2 for being connected to 1 bottom of valve body is fixedly installed in valve
The valve seat 4 of the top of body 1 and through valve seat 4 and the valve rod 5 of 1 inner cavity of valve body is extended to, the inner sidewall of valve body 1 is fixedly connected with guiding
Rail 15, the lower inner sidewall of valve body 1 offer seal groove 16, and the top fixation of valve body 1 is communicated with adjusting cavity 12, and adjusting cavity 12 is located at
The surface of guided way 15, and the inner cavity of adjusting cavity 12 is connected with the inner orbit of guided way 15, oil inlet 13 and oil outlet 14
It is connected with the inner cavity of valve body 1, and the outer of oil inlet 13 and oil outlet 14 is respectively welded connecting flange 11, draining portion 2
Including draining bottom cover 21 and the adjustable column 22 for being threadedly connected to 21 bottom of draining bottom cover, draining bottom cover 21 is in funnel shaped, draining
The outer surface of bottom cover 21 offers two or more oil leak holes 210, and the aperture value of oil leak hole 210 is 1.2cm, and sealing-plug 221 is in
Truncated conical shape, and the outer surface of sealing-plug 221 and the inner sidewall of draining bottom cover 21 mutually agree with, sealing-plug 221 by oil leak hole 210 with
The inner cavity of draining bottom cover 21 is run through and is extended on the top of the lumen blockage of draining bottom cover 21, adjustable column 22, and adjustable column 22 is located at
One end of 21 inner cavity of draining bottom cover is fixedly connected with sealing-plug 221, and the bottom of adjustable column 22 is fixedly connected with turning handle 220, draining
Portion 2 is connected by the top of draining bottom cover 21 with the bottom of valve body 1, and valve seat 4 includes lower valve base 41, is fixedly installed in lower valve base
The upper valve base 42 of 41 tops, the connecting column 43 that both ends are connected with the lower surface of the upper surface of lower valve base 41 and upper valve base 42 respectively
And the pressure sleeve 44 being movably installed between lower valve base 41 and upper valve base 42, the bottom of lower valve base 41 are fixedly connected with guide sleeve 3,
The bottom of guide sleeve 3 is connected with the top of valve body 1, and pressure sleeve 44 is fixedly attached with valve rod 5, and the outside of pressure sleeve 44 is fixed to be connected
It is connected to crank base 440, the inside of crank base 440 is rotatably connected to driving crank 441, and the outside of lower valve base 41 is rotatably connected to master
Crank 410 is moved, shaft is fixedly connected at the one third length of driving crank 410, driving crank 410 passes through shaft and transmission
Crank 441 is rotatablely connected, and is cooperated by setting driving crank 410, driving crank 441 and pressure sleeve 44, using lever principle, under
Driving crank 410 is pressed, driving crank 441 can be driven to rotate down, pressure sleeve 44 is made to pull valve rod 5 along guide sleeve 3 to moving up
It is dynamic, to control the promotion and decline of valve rod 5, is controlled without spiral, avoid soil and sandstone in oil field that from may revolving in valve rod 5
It is brought into spiral during turning, spiral is caused to block, influenced the problem of valve works normally, effectively improve the well valve work
The stability of work, while increasing torque using crank structure, keep the control of valve more laborsaving, driving crank 441 and actively song
Handle 410 is rotatablely connected, and valve rod 5 and guide sleeve 3 are rotatablely connected, and one end that valve rod 5 is located at 1 inner cavity of valve body is fixedly connected with connector sleeve
52, the outside of connector sleeve 52 is fixedly connected with connecting rod 53, and connecting rod 53 is fixedly connected with spool far from one end of connector sleeve 52
54, draining bottom cover 21 is set and adjustable column 22 cooperates, rotates adjustable column 22 upwards, makes 21 inside of sealing-plug 221 and draining bottom cover
Wall separation, lets out the grease stayed between two spools 54 to can release along oil leak hole 210, prevents from having between two spools 54
Grease, further increases the stability of tubing transmission, the top of spool 54 is run through and extended at the problem of causing valve rod 5 to freeze
The inner cavity of adjusting cavity 12, bottom and 16 phase of seal groove of spool 54 are clamped, and the quantity of spool 54 is two, and two spools 54 are with valve
The middle line of bar 5 is the two sides that axial symmetry is distributed in 1 inner cavity of valve body, is cooperated by setting spool 54, guided way 15 and seal groove 16,
Oil inlet 13 and oil outlet 14 can be separated, when guaranteeing that valve is closed, closed state is between two spools 54, prevents two
It intakes between spool 54, when avoiding winter, the moisture content in oil field is higher, is easy to freeze at valve, and valve rod 5 is caused not control normally
The problem of spool 54 processed switchs, is effectively ensured the normal transmission of oil pipe, spool 54 is slidably connected with guided way 15, the top of valve rod 5
The top of valve seat 4 is run through and is extended at end, and one end riveting that valve rod 5 is located at 4 top of valve seat has rivet 7, and valve rod 5 is located at valve seat 4
The outer surface thread at top is connected with upper end cover 51, and rivet 7 is located at the top of upper end cover 51, and the diameter value at 7 top of rivet is big
Diameter value in 5 cross section of valve rod, outer surface of the valve rod 5 between upper valve base 42 and upper end cover 51 are socketed with reset spring 6,
The bottom end of reset spring 6 is fixedly connected with the upper surface of upper valve base 42, the top of reset spring 6 and the lower surface phase of upper end cover 51
Contact is cooperated by setting upper valve base 42 and rivet 7, reset spring 6 can be limited to outside valve, and it is tired to be convenient for changing rebound
The reset spring 6 of labor, the existing oil field high pressure well valve reseting spring mostly 6 of effective solution are to be located at valve internal,
After being used for multiple times, it is easy to appear rebound fatigue, it has not been convenient to which upper end cover 51 is arranged in the problem of replacing, influencing valve service life, turns
Dynamic upper end cover 51 can adjust the position in the horizontal direction of upper end cover 51 along valve rod 5, to adjust compression or relaxation reset spring
6, guarantee reset spring 6 can normal control spool reset, further increase valve service life.
In conclusion oil field high pressure well valve can drive driving crank in use, pushing driving crank 410
441 rotate down, and make pressure sleeve 44 that valve rod 5 be pulled to move up along guide sleeve 3, to control the promotion of valve rod 5, valve rod 5 passes through
Connector sleeve 52 and connecting rod 53 cooperate, and band movable valve plug 54 is moved up along adjusting cavity 12, to make oil inlet 13 and oil outlet 14
Connection, valve are opened, and the oil in oil pipe can be transmitted along oil inlet 13 to oil outlet 14.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of oil field high pressure well valve, the valve body of oil inlet (13) and oil outlet (14) is offered including both ends respectively
(1), the fixed draining portion (2) for being connected to valve body (1) bottom, the valve seat (4) being fixedly installed in above valve body (1) and runs through valve seat
(4) and the valve rod (5) of valve body (1) inner cavity is extended to, it is characterised in that: the inner sidewall of the valve body (1) is fixedly connected with guiding
The lower inner sidewall of rail (15), the valve body (1) offers seal groove (16), and the top fixation of the valve body (1) is communicated with adjusting
Chamber (12), the draining portion (2) include draining bottom cover (21) and the adjustable column (22) for being threadedly connected to draining bottom cover (21) bottom,
The inner cavity of draining bottom cover (21) is run through and is extended on the top of the adjustable column (22), and the adjustable column (22) is located at draining bottom cover
(21) one end of inner cavity is fixedly connected with sealing-plug (221), and the bottom of the adjustable column (22) is fixedly connected with turning handle (220),
The draining portion (2) is connected by the top of draining bottom cover (21) with the bottom of valve body (1), and the valve seat (4) includes lower valve
Seat (41), the upper valve base (42) being fixedly installed in above lower valve base (41), both ends respectively with the upper surface of lower valve base (41) and upper
The connecting column (43) and the pressure being movably installed between lower valve base (41) and upper valve base (42) that the lower surface of valve seat (42) is connected
The bottom of power set (44), the lower valve base (41) is fixedly connected with guide sleeve (3), the bottom and valve body (1) of the guide sleeve (3)
Top be connected, the pressure sleeve (44) is fixedly attached with valve rod (5), is fixedly connected with song on the outside of the pressure sleeve (44)
Handle seat (440) is rotatably connected to driving crank (441) on the inside of the crank base (440), and the outside of the lower valve base (41) turns
Dynamic to be connected with driving crank (410), the driving crank (441) and driving crank (410) are rotatablely connected, the valve rod (5) with
Guide sleeve (3) rotation connection, one end that the valve rod (5) is located at valve body (1) inner cavity is fixedly connected with connector sleeve (52), the company
It is fixedly connected on the outside of female connector (52) connecting rod (53), the connecting rod (53) is fixedly connected far from the one end of connector sleeve (52)
Have spool (54), the spool (54) is slidably connected with guided way (15), and the top of the valve rod (5) is run through and extends to valve seat
(4) top, the valve rod (5), which is located at the riveting of one end at the top of valve seat (4), to be had rivet (7), and the valve rod (5) is located at valve seat
(4) outer surface thread at the top of is connected with upper end cover (51), and the valve rod (5) is located between upper valve base (42) and upper end cover (51)
Outer surface be socketed with reset spring (6)；The inner cavity of adjusting cavity (12) is run through and is extended at the top of the spool (54), described
The bottom of spool (54) is mutually clamped with seal groove (16), and the quantity of the spool (54) is two, two spools (54) with
The middle line of valve rod (5) is the two sides that axial symmetry is distributed in valve body (1) inner cavity；The bottom end of the reset spring (6) and upper valve base
(42) upper surface is fixedly connected, and the top of the reset spring (6) is in contact with the lower surface of upper end cover (51)；The adjusting
Chamber (12) is located at the surface of guided way (15), and the inner cavity of adjusting cavity (12) is connected with the inner orbit of guided way (15)；Institute
Draining bottom cover (21) are stated in funnel shaped, the outer surface of the draining bottom cover (21) offers two or more oil leak holes (210),
The aperture value of the oil leak hole (210) is 1.2cm.
2. a kind of oil field according to claim 1 high pressure well valve, it is characterised in that: the oil inlet (13) and go out
Hydraulic fluid port (14) is connected with the inner cavity of valve body (1), and the outer of oil inlet (13) and oil outlet (14) is respectively welded connection
Flange (11).
3. a kind of oil field according to claim 1 high pressure well valve, it is characterised in that: the driving crank (410)
One third length at be fixedly connected with shaft, the driving crank (410) is connected by shaft and driving crank (441) rotation
It connects.
4. a kind of oil field according to claim 1 high pressure well valve, it is characterised in that: the sealing-plug (221) is in
Truncated conical shape, and the outer surface of sealing-plug (221) and the inner sidewall of draining bottom cover (21) mutually agree with, the sealing-plug (221) will
The lumen blockage of oil leak hole (210) and draining bottom cover (21).
5. a kind of oil field according to claim 1 high pressure well valve, it is characterised in that: the rivet (7) is located at upper
The top of end cap (51), and the diameter value at the top of rivet (7) is greater than the diameter value of valve rod (5) cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298049.4A CN109162669B (en) | 2018-11-02 | 2018-11-02 | A kind of oil field high pressure well valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298049.4A CN109162669B (en) | 2018-11-02 | 2018-11-02 | A kind of oil field high pressure well valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162669A true CN109162669A (en) | 2019-01-08 |
| CN109162669B CN109162669B (en) | 2019-05-03 |
Family
ID=64876640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811298049.4A Active CN109162669B (en) | 2018-11-02 | 2018-11-02 | A kind of oil field high pressure well valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162669B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3747618A (en) * | 1971-08-13 | 1973-07-24 | R Boes | Automatic shut-off valve system |
| CN2375826Y (en) * | 1999-06-01 | 2000-04-26 | 杨永祥 | Track butterfly valve |
| CN101210632A (en) * | 2006-12-28 | 2008-07-02 | 徐学新 | Gyration type hydraulic operated valve |
| CN101440888A (en) * | 2008-12-30 | 2009-05-27 | 杭州华惠阀门有限公司 | High-temperature high-pressure pressure-reducing valve |
| CN202284577U (en) * | 2011-09-29 | 2012-06-27 | 河南航天压力元件有限公司 | Electromagnetic valve |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN104976360A (en) * | 2014-04-10 | 2015-10-14 | 江苏神通阀门股份有限公司 | High-pressure balance butterfly valve |
| CN205781158U (en) * | 2016-05-27 | 2016-12-07 | 永一阀门集团有限公司 | Vertical hydrolock relief valve |
-
2018
- 2018-11-02 CN CN201811298049.4A patent/CN109162669B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3747618A (en) * | 1971-08-13 | 1973-07-24 | R Boes | Automatic shut-off valve system |
| CN2375826Y (en) * | 1999-06-01 | 2000-04-26 | 杨永祥 | Track butterfly valve |
| CN101210632A (en) * | 2006-12-28 | 2008-07-02 | 徐学新 | Gyration type hydraulic operated valve |
| CN101440888A (en) * | 2008-12-30 | 2009-05-27 | 杭州华惠阀门有限公司 | High-temperature high-pressure pressure-reducing valve |
| CN102691800A (en) * | 2011-03-24 | 2012-09-26 | 费希尔调压器(上海)有限公司 | Fluid adjustment device with offset control element |
| CN202284577U (en) * | 2011-09-29 | 2012-06-27 | 河南航天压力元件有限公司 | Electromagnetic valve |
| CN104976360A (en) * | 2014-04-10 | 2015-10-14 | 江苏神通阀门股份有限公司 | High-pressure balance butterfly valve |
| CN205781158U (en) * | 2016-05-27 | 2016-12-07 | 永一阀门集团有限公司 | Vertical hydrolock relief valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109162669B (en) | 2019-05-03 |
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