CN111981140A - Novel pneumatic angle seat valve and using method - Google Patents

Novel pneumatic angle seat valve and using method Download PDF

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Publication number
CN111981140A
CN111981140A CN202010937105.5A CN202010937105A CN111981140A CN 111981140 A CN111981140 A CN 111981140A CN 202010937105 A CN202010937105 A CN 202010937105A CN 111981140 A CN111981140 A CN 111981140A
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China
Prior art keywords
valve
pneumatic
angle seat
pneumatic angle
valve rod
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CN202010937105.5A
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Chinese (zh)
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杭宇
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Individual
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Priority to CN202010937105.5A priority Critical patent/CN111981140A/en
Publication of CN111981140A publication Critical patent/CN111981140A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F16K1/04Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/02Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • F16K1/06Special arrangements for improving the flow, e.g. special shape of passages or casings
    • F16K1/10Special arrangements for improving the flow, e.g. special shape of passages or casings in which the spindle is inclined to the general direction of flow
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/16Actuating devices; Operating means; Releasing devices actuated by fluid with a mechanism, other than pulling-or pushing-rod, between fluid motor and closure member

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention relates to a novel pneumatic angle seat valve and a using method thereof, the novel pneumatic angle seat valve comprises a valve body, a valve cover, a valve rod penetrating through the valve cover and a valve clack which is arranged at the lower end of the valve rod and pressed at a fluid outlet in the valve body, wherein an adjusting device and a driving device for driving the valve rod to move up and down are arranged on the valve cover, an output shaft of a pneumatic motor is connected with the adjusting device, the adjusting device comprises a connecting seat fixed on the valve cover and a connecting device connected with the valve rod, and the connecting device is arranged in the. The invention controls the valve rod to move up and down stably by matching the adjusting device with the driving device, realizes the opening or closing of the pneumatic angle seat valve, and can be suitable for higher working pressure and temperature.

Description

Novel pneumatic angle seat valve and using method
Technical Field
The invention relates to the technical field, in particular to a novel pneumatic angle seat valve and a using method thereof.
Background
The angle seat valve is widely applied to short-time frequent starting and has the characteristics of sensitive response and accurate action. The pneumatic regulating valve consists of an actuating mechanism and a regulating mechanism. The executing mechanism is a thrust component of the regulating valve, and generates corresponding thrust according to the pressure of the control signal to push the regulating mechanism to act. The valve body is a regulating part of a pneumatic regulating valve, and is directly contacted with a regulating medium to regulate the flow of the fluid.
The traditional pneumatic angle seat valve has certain requirements on control fluid pressure in a working state, the fluid medium pressure is too high or too low, most of the traditional pneumatic angle seat valve continuously controls an actuating mechanism through a compressed air source, the actuating mechanism drives a valve body to open or close, and the instability of the compressed air source can also have adverse effects on normal operation.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a novel pneumatic angle seat valve and a using method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a novel pneumatic angle seat valve, includes valve body, valve gap, runs through the valve rod of valve gap and installs at the valve rod lower extreme and press the valve clack in the inside fluid exit of valve body, installs adjusting device and the drive arrangement who is used for driving the valve rod and reciprocates on the valve gap, and drive arrangement includes pneumatic motor, and pneumatic motor's output shaft and adjusting device hookup, adjusting device are including fixing the connecting seat on the valve gap and the connecting device who is connected with valve rod upper portion, and connecting device sets up in the connecting seat.
Preferably, the connecting device comprises a trapezoidal nut installed inside the connecting seat, the upper part of the valve rod is in threaded connection with the trapezoidal nut, and one end, close to the pneumatic motor, of the trapezoidal nut is in key connection with an output shaft of the pneumatic motor.
The connecting seat is used for limiting the upper position and the lower position of the trapezoidal nut, the trapezoidal nut can rotate along with an output shaft of the pneumatic motor in the connecting seat, the trapezoidal nut rotates, the valve rod in threaded connection with the trapezoidal nut moves linearly up and down, the valve rod does not rotate, the pressure of a fluid medium has little influence on opening or closing of the valve rod, the valve rod can normally work within the range of 0-64 Bar, and meanwhile, the transmission stability of the valve rod is improved.
Preferably, the connecting device comprises a spline arranged in the connecting seat, one end of the spline is fixedly connected with an output shaft of the pneumatic motor, and the other end of the spline is connected with the upper part of the valve rod.
The spline is used as the other mode that the upper part of the valve rod is connected with the output shaft of the pneumatic motor, and the spline and the valve rod rotate along with the output shaft of the pneumatic motor, so that the pneumatic angle seat valve is opened or closed.
Preferably, the driving device further comprises two pneumatic speed regulating valves electrically connected with the electromagnetic valve, the two pneumatic speed regulating valves comprise a clockwise rotation pneumatic speed regulating valve and a counterclockwise rotation pneumatic speed regulating valve, and the two pneumatic speed regulating valves are installed on the two air inlet holes of the pneumatic motor.
The two pneumatic speed regulating valves switch the working state through the electromagnetic valve, the pneumatic motor is controlled to rotate forwards by rotating the pneumatic speed regulating valves clockwise, the pneumatic angle seat valve is opened, the pneumatic motor is controlled to rotate backwards by rotating the pneumatic speed regulating valves anticlockwise, and the pneumatic angle seat valve is closed.
Preferably, the valve body is provided with a U-shaped contact sensor, the U-shaped contact sensor comprises a spring feeler lever, a return spring and a screw plug, the valve body is provided with a hole, the spring feeler lever which is in sliding connection with the valve rod penetrates through the hole, and the U-shaped contact sensor is electrically connected with the electromagnetic valve.
Go deep into the inside spring probe outside cover of valve body and be equipped with reset spring, the plug screw is installed between the hole on spring probe and the valve body, for realizing that pneumatic angle seat valve stops work and cut off the air supply immediately, installs U type contact pick-up on the valve body, when the valve is opened or is closed, flat upwards or the downward spring probe that triggers of valve rod one end, U type contact pick-up is triggered in the outside motion of spring probe, and U type contact pick-up gives the solenoid valve signal, and the solenoid valve work cuts off the air supply.
Preferably, the connecting seat is a bearing sleeve, the connecting device further comprises a rolling bearing arranged in the bearing sleeve, an outer ring of the rolling bearing is fixed in the bearing sleeve, and an inner ring of the rolling bearing is fixedly connected with the trapezoidal nut.
The rolling bearing can limit the upper position and the lower position of the trapezoidal nut and is favorable for the trapezoidal nut to rotate stably.
Preferably, two rolling bearings are arranged and distributed at two ends of the trapezoidal nut.
Preferably, the valve cover is internally provided with a rotation stopping gasket, and the rotation stopping gasket is fixed in the valve cover through a pin.
The rotation stopping gasket is used for preventing the valve rod from vibrating due to external force and generating a large gap with the valve cover or filler, so that the sealing effect of the multi-pneumatic angle seat valve fluid outlet head of the valve rod bottom valve clack is influenced.
Preferably, the pneumatic motor is further provided with a hand wheel, and the hand wheel is connected with an input shaft of the pneumatic motor.
In order to deal with the problem that the pneumatic angle seat valve can be opened or closed under abnormal conditions (when the valve is opened or closed, a compressed air source is suddenly cut off abnormally), or when the angle seat valve is in a half-opened state, a hand wheel can be additionally arranged on a pneumatic motor of the pneumatic angle seat valve, and the pneumatic angle seat valve is manually opened or closed.
A use method of a novel pneumatic angle seat valve,
when the pneumatic angle seat valve needs to be closed, a gas source is connected, the solenoid valve controls the pneumatic speed regulating valve to rotate clockwise to enable the pneumatic motor to rotate forwards, and the valve rod drives the valve clack to move downwards to a fluid medium outlet in the valve body;
when the pneumatic angle seat valve needs to be opened, the electromagnetic valve controls the pneumatic speed regulating valve to rotate anticlockwise so that the pneumatic motor rotates reversely, and the valve rod drives the valve clack to move upwards;
and (III) when the compressed air source can not continuously supply or half-open the pneumatic angle seat valve, fully opening, half-opening or closing the pneumatic angle seat valve by rotating the hand wheel.
Compared with the prior art, the invention has the beneficial effects that: the pneumatic angle seat valve has the advantages that the trapezoidal nut rotates to control the valve rod to stably move up and down linearly through the matching of the adjusting device and the driving device, the opening or closing of the pneumatic angle seat valve is achieved, the two pneumatic speed regulating valves are controlled through the electromagnetic valve, the opening or closing of the pneumatic angle seat valve is controlled, the pressure of fluid media has little influence on the opening or closing of the pneumatic angle seat valve, the pneumatic angle seat valve can normally work under the working condition that the pressure of the media fluid is 0-64 Bar, the pressure of the media fluid not only completely covers the pressure range of the media fluid of the traditional pneumatic angle seat valve, but also has no requirement on the pressure of the lowest media fluid, and the highest pressure of the media fluid is close to the pressure-resistant limit.
Drawings
FIG. 1 is a schematic structural view of the present invention in a closed state;
FIG. 2 is a structural diagram of the present invention in an open state;
FIG. 3 is a schematic view of a bearing housing of the present invention;
fig. 4 is a schematic sectional view taken along the direction a in fig. 1.
FIG. 5 is a schematic cross-sectional view taken along line B of FIG. 1;
FIG. 6 is a schematic view of the present invention with a hand wheel;
FIG. 7 is a schematic view of the invention taken from direction A of FIG. 6;
FIG. 8 is a schematic view of the invention taken along line B of FIG. 6;
fig. 9 is a schematic representation of the aerodynamic principle of the present invention.
FIG. 10 is a schematic view showing spline mounting in embodiment 2 of the present invention;
FIG. 11 is a perspective view of the present invention.
Reference numerals shown in the drawings: 1. a valve body; 2. a valve flap; 21. a valve body fluid medium outlet; 3. a valve stem; 4. a valve cover; 5. a compression spring; 6. a pin; 7. a rotation stop washer; 8. a rolling bearing; 9. a bearing housing; 10. a pneumatic motor; 101. an output shaft of the pneumatic motor; 11. a pneumatic speed regulating valve; 12. a U-shaped sensor; 13. a spring probe rod; 14. a return spring; 15. a plug screw; 16. a hand wheel; 17. a spline; 18. a trapezoidal nut; 19. rotating the pneumatic speed regulating valve clockwise; 20. the pneumatic governor valve is rotated counterclockwise.
Detailed Description
The invention is further illustrated below with reference to specific examples, the first example: as shown in figures 1-10, a novel pneumatic angle seat valve and a using method thereof, comprising a valve body 1, a valve cover 4 connected with the valve body 1 in a sealing way, a valve rod 3 penetrating through the valve cover 4 and a valve clack 2 installed at the lower end of the valve rod 3 and pressed at a fluid outlet in the valve body 1, wherein the lower end of the valve clack 2 is provided with a check ring for shaft, the valve rod 3 is connected with the valve clack 2 through a set screw, a filler is arranged in a gap between the valve cover 4 and the valve rod 3, a compression spring 5 sleeved on the valve rod 3 is arranged between the filler and the check washer, an air inlet and an air outlet of the valve body 1 are coaxial, on the basis of the existing pneumatic angle seat valve, the valve body 1 of the invention is in an oblique angle type design, the valve clack 2 obliquely controls the flow direction of a fluid medium in the valve body 1, an adjusting device and a driving device for driving the valve rod 3, the pneumatic motor is a planetary gear speed reduction blade type pneumatic motor, the pneumatic speed regulating valve 11 comprises a clockwise rotation pneumatic speed regulating valve 19 and an anticlockwise rotation pneumatic speed regulating valve 20, the two pneumatic speed regulating valves are installed on two air inlet holes on the pneumatic motor 10, the clockwise rotation pneumatic speed regulating valve 19 controls the forward rotation of the pneumatic motor 10 through an electromagnetic valve, and the anticlockwise rotation pneumatic speed regulating valve 20 controls the reverse rotation of the pneumatic motor 10. The two pneumatic speed regulating valves 11 are switched to work states through electromagnetic valves, the pneumatic motor 10 rotates forwards, the pneumatic angle seat valve is opened, the pneumatic motor 10 rotates backwards, and the pneumatic angle seat valve is closed.
Adjusting device is including fixing the bearing housing 9 on valve gap 4 and the connecting device who is connected with valve rod 3 upper portion, connecting device sets up in bearing housing 9, connecting device is including installing antifriction bearing 8 and the trapezoidal nut 18 inside the bearing frame, antifriction bearing 8 is provided with two, distribute at trapezoidal nut 18 both ends, antifriction bearing 8's outer lane is fixed in bearing housing 9, antifriction bearing 8's inner circle and trapezoidal nut 18 rigid coupling, valve rod 3 upper portion and trapezoidal nut 18 threaded connection, trapezoidal nut 18 is close to drive arrangement's one end and is connected through the parallel key with drive arrangement's output shaft.
The rolling bearing 8 can limit the upper position and the lower position of the trapezoidal nut 18, the trapezoidal nut 18 can rotate along with the output shaft of the pneumatic motor 10 in the connecting seat, the trapezoidal nut 18 rotates, the valve rod 3 in threaded connection with the trapezoidal nut 18 moves up and down in a linear mode, the valve rod 3 does not rotate, through the arrangement, the pressure of a fluid medium has little influence on opening or closing of the pneumatic valve, the pneumatic valve can normally work within the range of 0-50 Bar, and meanwhile, the transmission stability of the valve rod 3 is improved.
The valve cover 4 is internally provided with a rotation stopping gasket 7, and the rotation stopping gasket 7 is fixed in the valve cover 4 through a pin 6. The rotation stopping gasket 7 is used for preventing the valve rod 3 from vibrating due to external force and generating a large gap with the valve cover 4 or filler, so that the sealing effect of the multi-pneumatic angle seat valve fluid outlet of the valve clack 2 at the bottom end of the valve rod 3 is influenced.
The valve body 1 is provided with a U-shaped contact sensor, an air source can be cut off immediately after the valve is closed or opened, air consumption is reduced as much as possible, the U-shaped contact sensor comprises a spring feeler lever 13, a return spring 14 and a screw plug 15, a hole is formed in the valve body 1, the spring feeler lever 13 which is in sliding connection with the valve rod 3 penetrates through the hole, and the U-shaped contact sensor is electrically connected with the electromagnetic valve. The outside cover of the spring probe 13 that gos deep into the inside of valve body 1 is equipped with reset spring 14, plug screw 15 installs between the hole on spring probe 13 and the valve body 1, for realizing that pneumatic angle seat valve stops work and cut off the air supply immediately, install U type contact sensor on valve body 1, when the valve is opened or is closed, spring probe 13 is upwards or downwards triggered to valve rod 3 one end, U type contact sensor is triggered in the outside motion of spring probe 13, U type contact sensor gives the solenoid valve signal, the solenoid valve work, cut off the air supply.
In order to deal with the problem that the pneumatic angle seat valve can be opened or closed under abnormal conditions (when the valve is opened or closed, a compressed air source is suddenly cut off abnormally), or when the angle seat valve is in a half-opened state, a hand wheel 16 can be additionally arranged on the pneumatic motor 10 of the pneumatic angle seat valve, and the hand wheel 16 is connected with an input shaft of the pneumatic motor 10 and is opened or closed manually.
Example two: on the basis of the first embodiment, the connection mode of the upper part of the valve rod 3 and the connecting device in embodiment 1 is replaced by the spline 17 connection, the spline 17 is an internal spline 17, the inner part of one end of the spline 17 is fixedly connected with the output shaft of the driving device, the other end of the spline 17 is fixedly connected with the upper part of the valve rod 3, and the spline 17 and the valve rod 3 rotate along with the output shaft of the pneumatic motor 10 to realize the opening or closing of the pneumatic angle seat valve.
The method comprises the following steps: when the pneumatic angle seat valve needs to be closed, the air source is connected, the solenoid valve controls the pneumatic motor 10 to rotate forward, and the valve rod 3 drives the valve clack 2 to move downwards to the fluid medium outlet in the valve body 1; when the pneumatic angle seat valve needs to be opened, the electromagnetic valve controls the pneumatic motor 10 to rotate reversely, and the valve rod 3 drives the valve clack 2 to move upwards; in special cases (e.g., when the compressed air source cannot supply the compressed air continuously or the pneumatic angle seat valve is half-opened), the hand wheel 16 is rotated to fully open, half-open or close the pneumatic angle seat valve.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

Claims (10)

1. A novel pneumatic angle seat valve is characterized in that: including valve body (1), valve gap (4), run through valve rod (3) of valve gap (4) and install valve clack (2) in valve body (1) inside fluid medium exit at valve rod (3) lower extreme and pressure, install adjusting device and the drive arrangement who is used for driving valve rod (3) and reciprocates on valve gap (4), drive arrangement includes pneumatic motor (10), pneumatic motor's output shaft (101) with adjusting device hookup, adjusting device is including fixing connecting seat on valve gap (4) and with the connecting device that valve rod (3) upper portion is connected, connecting device sets up in the connecting seat.
2. A new pneumatic angle seat valve as claimed in claim 1, characterized in that: the connecting device comprises a trapezoidal nut (18) arranged inside the connecting seat, the upper part of the valve rod (3) is in threaded connection with the trapezoidal nut (18), and one end, close to the pneumatic motor, of the trapezoidal nut (18) is in key connection with an output shaft (101) of the pneumatic motor.
3. A new pneumatic angle seat valve as claimed in claim 1, characterized in that: the connecting device comprises a spline (17) arranged inside the connecting seat, one end of the spline (17) is fixedly connected with an output shaft (101) of the pneumatic motor, and the other end of the spline is connected with the upper part of the valve rod (3).
4. A new pneumatic angle seat valve as claimed in claim 1, characterized in that: the driving device further comprises two pneumatic speed regulating valves (11) electrically connected with the electromagnetic valve, the two pneumatic speed regulating valves (11) comprise clockwise rotation pneumatic speed regulating valves (19) and anticlockwise rotation pneumatic speed regulating valves (20), and the two pneumatic speed regulating valves (11) are installed on the two air inlet holes in the pneumatic motor (10).
5. A new pneumatic angle seat valve as claimed in claim 1, characterized in that: the valve is characterized in that the valve body (1) is provided with a U-shaped contact sensor, the U-shaped contact sensor comprises a spring feeler lever (13), a return spring (14) and a screw plug (15), the valve body (1) is provided with a hole, the spring feeler lever (13) which is in sliding connection with the valve rod (3) penetrates through the hole, and the U-shaped contact sensor is electrically connected with the electromagnetic valve.
6. A new pneumatic angle seat valve as claimed in claim 2, characterized in that: the connecting seat is a bearing sleeve (9), the connecting device further comprises a rolling bearing (8) arranged inside the bearing sleeve (9), the outer ring of the rolling bearing (8) is fixed in the bearing sleeve (9), and the inner ring of the rolling bearing (8) is fixedly connected with the trapezoidal nut (18).
7. A new pneumatic angle seat valve as claimed in claim 6, characterized in that: the two rolling bearings (8) are distributed at two ends of the trapezoidal nut (18).
8. A new pneumatic angle seat valve as claimed in claim 1, characterized in that: a rotation stopping gasket (7) is arranged inside the valve cover (4), and the rotation stopping gasket (7) is fixed in the valve cover (4) through a pin (6).
9. A new pneumatic angle seat valve according to claim 2 or 3, characterized in that: and a hand wheel (16) is further installed on the pneumatic motor (10), and the hand wheel (16) is connected with an input shaft of the pneumatic motor (10).
10. The use method of a novel pneumatic angle seat valve as claimed in any one of claims 1 to 9, characterized in that:
when the pneumatic angle seat valve needs to be closed, a gas source is connected, the solenoid valve controls the pneumatic speed regulating valve (19) to rotate clockwise to enable the pneumatic motor (10) to rotate forwards, and the valve rod (3) drives the valve clack (2) to move downwards to an outlet of a fluid medium in the valve body (1) to be in sealing connection;
when the pneumatic angle seat valve needs to be opened, the electromagnetic valve controls the pneumatic speed regulating valve (20) to rotate anticlockwise to enable the pneumatic motor (10) to rotate reversely, and the valve rod (3) drives the valve clack (2) to move upwards;
and thirdly, when the compressed air source can not supply the compressed air source continuously or the pneumatic angle seat valve is opened half, the pneumatic angle seat valve is opened fully or closed half by rotating the hand wheel (16).
CN202010937105.5A 2020-09-08 2020-09-08 Novel pneumatic angle seat valve and using method Pending CN111981140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010937105.5A CN111981140A (en) 2020-09-08 2020-09-08 Novel pneumatic angle seat valve and using method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010937105.5A CN111981140A (en) 2020-09-08 2020-09-08 Novel pneumatic angle seat valve and using method

Publications (1)

Publication Number Publication Date
CN111981140A true CN111981140A (en) 2020-11-24

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112984202A (en) * 2021-02-09 2021-06-18 国家石油天然气管网集团有限公司华南分公司 Decompression valve of vane motor direct-drive and manual dual-mode electromagnetic pilot type axial flow water machine
CN112984201A (en) * 2021-02-09 2021-06-18 国家石油天然气管网集团有限公司华南分公司 Double-control axial flow mechanical pilot type water machine pressure release valve directly driven by vane type hydraulic motor

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPH08233150A (en) * 1995-03-01 1996-09-10 Toshiba Corp Main stream separation valve
CN101377245A (en) * 2008-09-24 2009-03-04 上海宏翔机械制造有限公司 Pneumatic two-position two-way piston type angle seat valve
CN107683382A (en) * 2015-04-03 2018-02-09 四轮机动车有限公司 Valve control system
CN207161860U (en) * 2017-08-15 2018-03-30 西安广核阀门有限公司 A kind of liquid metal special stop valve
CN110131470A (en) * 2019-06-05 2019-08-16 昆山伟鑫国际贸易有限公司 Limit switch type pneumatic actuator
CN212360806U (en) * 2020-09-08 2021-01-15 杭宇 Novel pneumatic angle seat valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08233150A (en) * 1995-03-01 1996-09-10 Toshiba Corp Main stream separation valve
CN101377245A (en) * 2008-09-24 2009-03-04 上海宏翔机械制造有限公司 Pneumatic two-position two-way piston type angle seat valve
CN107683382A (en) * 2015-04-03 2018-02-09 四轮机动车有限公司 Valve control system
CN207161860U (en) * 2017-08-15 2018-03-30 西安广核阀门有限公司 A kind of liquid metal special stop valve
CN110131470A (en) * 2019-06-05 2019-08-16 昆山伟鑫国际贸易有限公司 Limit switch type pneumatic actuator
CN212360806U (en) * 2020-09-08 2021-01-15 杭宇 Novel pneumatic angle seat valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112984202A (en) * 2021-02-09 2021-06-18 国家石油天然气管网集团有限公司华南分公司 Decompression valve of vane motor direct-drive and manual dual-mode electromagnetic pilot type axial flow water machine
CN112984201A (en) * 2021-02-09 2021-06-18 国家石油天然气管网集团有限公司华南分公司 Double-control axial flow mechanical pilot type water machine pressure release valve directly driven by vane type hydraulic motor
CN112984202B (en) * 2021-02-09 2022-12-20 国家石油天然气管网集团有限公司华南分公司 Blade motor direct-drive and manual dual-mode electromagnetic pilot type axial flow water attack relief valve
CN112984201B (en) * 2021-02-09 2023-01-17 国家石油天然气管网集团有限公司华南分公司 Blade type hydraulic motor direct-driven double-control axial flow mechanical pilot type water hammer relief valve

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