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CN112610709A - Flat gate valve - Google Patents

Flat gate valve Download PDF

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Publication number
CN112610709A
CN112610709A CN202011480015.4A CN202011480015A CN112610709A CN 112610709 A CN112610709 A CN 112610709A CN 202011480015 A CN202011480015 A CN 202011480015A CN 112610709 A CN112610709 A CN 112610709A
Authority
CN
China
Prior art keywords
valve
gate
valve body
flashboard
water inlet
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.)
Granted
Application number
CN202011480015.4A
Other languages
Chinese (zh)
Other versions
CN112610709B (en
Inventor
宋玉法
李云华
栾海荣
许新乐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Danfeng Petroleum Technology Development Co ltd
Original Assignee
Rongcheng Rongli Valve Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rongcheng Rongli Valve Co ltd filed Critical Rongcheng Rongli Valve Co ltd
Priority to CN202011480015.4A priority Critical patent/CN112610709B/en
Publication of CN112610709A publication Critical patent/CN112610709A/en
Application granted granted Critical
Publication of CN112610709B publication Critical patent/CN112610709B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0209—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor the valve having a particular passage, e.g. provided with a filter, throttle or safety device
    • 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
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0254—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor being operated by particular means
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/20—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/508—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating element being rotatable, non-rising, and driving a non-rotatable axially-sliding element

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

The invention discloses a flat gate valve, which consists of a handle, a valve rod nut, a valve cover, a valve rod, a valve body, a flashboard, a valve seat and a lower valve cover, wherein the flat gate valve is provided with a water inlet and a water outlet, the flashboard is arranged in the middle of an inner cavity of the valve body, the valve rod is arranged at the upper end of the flashboard, a piston is arranged at the lower end of the flashboard, the valve seat is arranged on the flashboard in the direction of the water inlet, the lower valve cover is arranged at the lower end of the valve body, a flow guide hole is arranged at the lower part of the water inlet end of the valve body, the upper end of the flow guide hole is communicated with the water inlet end, the. The invention has the advantages that: the flat gate valve is innovatively designed, has the double functions of stopping and stopping, is not easy to damage a sealing surface, has good sealing performance and long service life.

Description

Flat gate valve
Technical Field
The invention provides a pipeline valve suitable for conveying media in the industries of petroleum, chemical engineering and the like, which is a flat gate valve and is used for stopping and stopping.
Background
At present, the domestic valve with the functions of stopping and stopping is generally composed of main parts such as a valve body, a valve cover, a valve rod, a valve seat, a valve clack and the like, and the main sealing type is plane, conical surface and the like.
Disclosure of Invention
The invention aims to overcome the technical defects of the existing valve structure, and innovatively designs a flat gate valve which has the double functions of stopping and stopping, is not easy to damage a sealing surface, has good sealing performance and long service life.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention comprises a handle, a valve rod nut, a valve cover, a valve rod, a valve body and a flashboard, the valve seat, the lower valve gap is constituteed, the plate valve is equipped with the water inlet, the delivery port, the flashboard is equipped with in the middle part of the valve body inner chamber, the valve rod is equipped with to the flashboard upper end, the piston is equipped with to the flashboard lower extreme, piston excircle is equipped with sealing washer II, the disk seat is equipped with in the water inlet direction to the flashboard, disk seat excircle is equipped with sealing washer III, the flashboard, the disk seat contact surface all is the plane can realize sealedly, the lower valve gap is equipped with to the valve body lower extreme, lower valve gap lower extreme excircle is equipped with sealing washer I, the valve body is equipped with the water conservancy diversion hole in water inlet end lower part, water conservancy diversion hole upper end communicates with each other with the water inlet end, water conservancy diversion hole lower extreme communicates with each other with sealed chamber, the.
The flashboard is the parallel type flashboard, and the flashboard lower extreme is equipped with medium flow path hole, and the flashboard adopts the dovetail groove to be connected with the piston, and flashboard and valve rod do not have fixed connection.
The sealing cavity consists of a valve body, a lower valve cover, a piston, a sealing ring I and a sealing ring II.
The invention has the advantages that: the flat gate valve is innovatively designed, has the double functions of stopping and stopping, is not easy to damage a sealing surface, has good sealing performance and long service life.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a front sectional view of the present invention.
In fig. 1, 1 handle, 2 valve rod nuts, 3 valve covers, 4 valve rods, 5 valve bodies, 6 flashboards, 7 pistons, 8 lower valve covers, 9 sealing rings I, 10 sealing rings II, 11 springs, 12 check columns, 13 valve body short joints, 14 valve seats, 15 sealing rings III, A water inlets, B water outlets, C sealing cavities, D flow passage holes, E through holes and F flow guide holes.
Detailed Description
In figure 1, a flat gate valve comprises a handle (1), a valve rod nut (2), a valve cover (3), a valve rod (4), a valve body (5), a flashboard (6), a valve seat (14) and a lower valve cover (8), wherein the flat gate valve is provided with a water inlet (A) and a water outlet (B), the flashboard (6) is arranged in the middle of an inner cavity of the valve body (5), the valve rod (4) is arranged at the upper end of the flashboard (6), a piston (7) is arranged at the lower end of the flashboard (6), a sealing ring II (10) is arranged on the excircle of the piston (7), the valve seat (14) is arranged on the flashboard (6) in the direction of the water inlet (A), a sealing ring III (15) is arranged on the excircle of the valve seat (14), the contact surfaces of the flashboard (6) and the valve seat (14) can realize sealing by being planes, the lower valve cover (8) is arranged, the upper end of the flow guide hole (F) is communicated with the water inlet (A), the lower end of the flow guide hole (F) is communicated with the sealed cavity (C), the check column (12) and the spring (11) are arranged inside the valve body short circuit (13), the contact surface of the valve body short circuit (13) and the check column (12) is a conical surface or a plane two-side contact surface, sealing can be achieved, a through hole (E) is formed in the cavity of the valve body (5) close to the water outlet (B), and the sealed cavity (C) is formed in the lower end of the cavity of the valve body (5. Flashboard (6) are parallel flashboard, and flashboard (6) lower extreme is equipped with medium flow channel hole (D), and flashboard (6) adopt the dovetail groove to be connected with piston (7), and flashboard (6) do not have fixed connection with valve rod (4). The sealing cavity (C) is composed of a valve body (5), a lower valve cover (8), a piston (7), a sealing diagram I (9) and a sealing ring II (10).
The working principle of the invention is as follows: description attached drawings fig. 1 shows the position of the valve is the valve closed state, the invention has double-sealing pair structure, first, the contact surface of the gate plate (6) and the valve seat (14) forms the sealing pair; and secondly, a sealing pair is formed at the contact surface of the valve body short joint (13) and the check column (12).
When the valve is opened, the handle (1) is rotated anticlockwise, the valve rod nut (2) is rotated anticlockwise to drive the valve rod (4) to move upwards, the valve rod (4) is separated from the flashboard (6), the medium pressure of the water inlet (A) pushes the check column (12) and the spring (11) moves towards the direction of the water outlet (B), the valve body short circuit (13) and the check column (12) are in contact sealing pair opening, the medium enters a cavity of the valve body short circuit (13), the medium pressure pushes the valve seat (14) to move towards the flashboard (6), the valve seat (14) compresses the flashboard (6) to realize sealing, and the medium is blocked to flow towards the direction of the water outlet (B. Simultaneously in the medium of water inlet (A) passes through water conservancy diversion hole (F) and reachs sealed chamber (C), the medium pressure in sealed chamber (C) this moment is greater than the medium pressure in piston (7) upper end valve body (5) cavity, the medium promotion piston (7) rebound of sealed chamber (C), piston (7) promote flashboard (6) rebound simultaneously, the valve is opened gradually, when runner hole (D) on flashboard (6) and water inlet (A), delivery port (B) are adjusted well the time the valve is all opened, the medium is by water inlet (A) through runner hole (D) output delivery port (B).
When the door is closed, the handle (1) is rotated clockwise, the valve rod nut (2) rotates clockwise, the valve rod nut (2) drives the valve rod (4) to move downwards, the valve rod (4) pushes the flashboard (6) and the piston (7) to move downwards simultaneously to close the valve, and the medium of the sealing cavity (C) is pushed by the sealing cavity (C) to pass through the diversion hole (F) to output the water inlet (A) in the pushing of the piston (7). When a flow passage hole (D) in the flashboard (6) is located at a position shown in figure 1 of the attached drawing of the specification, medium pressure of a water inlet (A) pushes a valve seat (14) to move towards the flashboard (6), the valve seat (14) presses the flashboard (6), a contact surface of the valve seat (14) and the flashboard (6) realizes that a sealing valve is closed, water inlet pressure of the excircle of the valve seat (14) is blocked by a sealing ring III (15) to realize sealing, and at the moment, the valve is in a closed state.
The non-return function of the invention is that when the valve is in a fully opened state or in a half-opened state, when the medium pressure of the water inlet (A) is suddenly stopped, the medium pressure of the water inlet (A) is reduced, the medium flows back from the water outlet (B) to the water inlet (A), the medium flows from the water outlet (B) to the water inlet (A) through the flow passage hole (D), the non-return column (12) moves towards the water inlet (A) under the combined action of the pressure of the backflow medium and the elasticity of the spring (11), the valve body short circuit (13) is in contact with two end faces of the non-return column (12) to realize sealing, and the valve body short circuit (13) and the non-return column (12) are sealed to prevent the medium from flowing back from the water outlet (B) to the water. Meanwhile, backflow media enter a cavity of a valve body (5) at the upper end of a piston (7) through a through hole (E) in the cavity of the valve body (5) from a water outlet (B), the medium pressure in the cavity of the valve body (5) at the upper end of the piston (7) is greater than the medium pressure in a sealing cavity (C), the piston (7) is pushed by the medium pressure to move downwards, the piston (7) drives a gate plate (6) to move downwards simultaneously, when a flow passage hole (D) in the gate plate (6) is located at the position shown in figure 1 of the attached drawing of the specification, the gate plate (6) presses a valve seat (14), a sealing valve is formed by the contact surface of the gate plate (6) and the valve seat.

Claims (3)

1.一种平板闸阀，由手柄(1)、阀杆螺母(2)、阀盖(3)、阀杆(4)、阀体(5)、闸板(6)、阀座(14)、下阀盖(8)组成，其特征是：平板闸阀设有进水口(A)、出水口(B)，阀体(5)内腔中部装有闸板(6)，闸板(6)上端装有阀杆(4)，闸板(6)下端装有活塞(7)，活塞(7)外圆装有密封圈II(10)，闸板(6)在进水口(A)方向装有阀座(14)，阀座(14)外圆装有密封圈III(15)，闸板(6)、阀座(14)接触面都是平面能实现密封，阀体(5)下端装有下阀盖(8)，下阀盖(8)下端外圆装有密封圈I(9)，阀体(5)在进水口(A)端下部设有导流孔(F)，导流孔(F)上端与进水口(A)端相通，导流孔(F)下端与密封腔(C)相通，阀体短接(13)内部装有止回柱(12)、弹簧(11)，阀体短接(13)与止回柱(12)接触面是锥面或平面两面接触能实现密封，阀体(5)腔体上靠近出水口(B)端设有通孔(E)，阀体(5)腔体下端设有密封腔(C)。1. A flat gate valve, comprising a handle (1), a valve stem nut (2), a valve cover (3), a valve stem (4), a valve body (5), a gate (6), a valve seat (14), It consists of a lower valve cover (8), and is characterized in that: the flat gate valve is provided with a water inlet (A) and a water outlet (B), a gate (6) is installed in the middle of the inner cavity of the valve body (5), and the upper end of the gate (6) A valve stem (4) is installed, a piston (7) is installed at the lower end of the gate (6), a sealing ring II (10) is installed on the outer circumference of the piston (7), and the gate (6) is installed in the direction of the water inlet (A). The valve seat (14) is equipped with a sealing ring III (15) on the outer circumference of the valve seat (14). The lower valve cover (8) is provided with a sealing ring I (9) on the outer circumference of the lower end of the lower valve cover (8). The valve body (5) is provided with a guide hole (F) at the lower part of the water inlet (A) end, and the guide hole (F) The upper end is communicated with the water inlet (A) end, the lower end of the guide hole (F) is communicated with the sealing chamber (C), and the valve body is shorted (13) with a check column (12) and a spring (11) inside, The contact surface between the valve body short-circuit (13) and the check column (12) is a conical surface or a flat surface to achieve sealing. The cavity of the valve body (5) is provided with a through hole (E) near the water outlet (B) end. The lower end of the cavity of the valve body (5) is provided with a sealing cavity (C). 2.根据权利要求1所述的一种平板闸阀，其特征是：闸板(6)是平行式闸板，闸板(6)下端设有介质流道孔(D)，闸板(6)与活塞(7)采用梯形槽连接，闸板(6)与阀杆(4)无固定连接。2. A kind of flat gate valve according to claim 1 is characterized in that: the gate (6) is a parallel gate, the lower end of the gate (6) is provided with a medium flow channel hole (D), and the gate (6) It is connected with the piston (7) by a trapezoidal groove, and the gate (6) and the valve stem (4) are not fixedly connected. 3.根据权利要求1所述的一种平板闸阀，其特征是：密封腔(C)由阀体(5)、下阀盖(8)、活塞(7)、密封圈I(9)、密封圈II(10)组成。3. A kind of flat gate valve according to claim 1 is characterized in that: the sealing chamber (C) consists of valve body (5), lower valve cover (8), piston (7), sealing ring I (9), sealing Circle II(10) is composed.
CN202011480015.4A 2020-12-11 2020-12-11 A flat gate valve Active CN112610709B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011480015.4A CN112610709B (en) 2020-12-11 2020-12-11 A flat gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011480015.4A CN112610709B (en) 2020-12-11 2020-12-11 A flat gate valve

Publications (2)

Publication Number Publication Date
CN112610709A true CN112610709A (en) 2021-04-06
CN112610709B CN112610709B (en) 2025-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011480015.4A Active CN112610709B (en) 2020-12-11 2020-12-11 A flat gate valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116085486A (en) * 2023-02-15 2023-05-09 西南石油大学 An erosion-resistant flat gate valve for liquid-solid two-phase flow transportation

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042540A (en) * 1964-11-09 1966-09-14 Alexander Samuel Volpin Automatic sealing system for fluid flow control valves
US3734458A (en) * 1971-05-11 1973-05-22 Kerotest Mfg Corp Gate valve
JPH04254071A (en) * 1990-07-16 1992-09-09 Alcatel Cit sliding valve
JPH06147336A (en) * 1989-12-14 1994-05-27 Automatic Switch Co Four-directional slide valve
CN102966749A (en) * 2011-08-28 2013-03-13 张俊中 Servo differential-pressure self-lock brake valve
CN203532809U (en) * 2013-09-13 2014-04-09 浙江四通阀门制造有限公司 Knife-shaped gate valve
CN205955694U (en) * 2016-07-25 2017-02-15 盐城雄威石化通用机械设备有限公司 Multi -functional well head gate valve
CN106678385A (en) * 2017-03-08 2017-05-17 大通互惠集团有限公司 Self-operated pressure interval circulation valve and control method thereof
CN109764142A (en) * 2019-01-29 2019-05-17 湖北三江航天红峰控制有限公司 A kind of trimmer valve
CN214534562U (en) * 2020-12-11 2021-10-29 荣成市荣利阀门有限公司 Flat gate valve

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1042540A (en) * 1964-11-09 1966-09-14 Alexander Samuel Volpin Automatic sealing system for fluid flow control valves
US3734458A (en) * 1971-05-11 1973-05-22 Kerotest Mfg Corp Gate valve
JPH06147336A (en) * 1989-12-14 1994-05-27 Automatic Switch Co Four-directional slide valve
JPH04254071A (en) * 1990-07-16 1992-09-09 Alcatel Cit sliding valve
CN102966749A (en) * 2011-08-28 2013-03-13 张俊中 Servo differential-pressure self-lock brake valve
CN203532809U (en) * 2013-09-13 2014-04-09 浙江四通阀门制造有限公司 Knife-shaped gate valve
CN205955694U (en) * 2016-07-25 2017-02-15 盐城雄威石化通用机械设备有限公司 Multi -functional well head gate valve
CN106678385A (en) * 2017-03-08 2017-05-17 大通互惠集团有限公司 Self-operated pressure interval circulation valve and control method thereof
CN109764142A (en) * 2019-01-29 2019-05-17 湖北三江航天红峰控制有限公司 A kind of trimmer valve
CN214534562U (en) * 2020-12-11 2021-10-29 荣成市荣利阀门有限公司 Flat gate valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116085486A (en) * 2023-02-15 2023-05-09 西南石油大学 An erosion-resistant flat gate valve for liquid-solid two-phase flow transportation

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Effective date of registration: 20250618

Address after: 163000 Heilongjiang city of Daqing province science and Technology Park Ranghulu District No. 5 new road

Patentee after: DAQING DANFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co.,Ltd.

Country or region after: China

Address before: 264317 Lidi Road, Rongcheng City, Weihai City, Shandong Province

Patentee before: RONGCHENG RONGLI VALVE CO.,LTD.

Country or region before: China