CN104896111B - A kind of pilot piston type stop valve for adapting to vertical duct - Google Patents

A kind of pilot piston type stop valve for adapting to vertical duct Download PDF

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Publication number
CN104896111B
CN104896111B CN201510324772.5A CN201510324772A CN104896111B CN 104896111 B CN104896111 B CN 104896111B CN 201510324772 A CN201510324772 A CN 201510324772A CN 104896111 B CN104896111 B CN 104896111B
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CN
China
Prior art keywords
valve
piston
pilot
valve body
valve core
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.)
Expired - Fee Related
Application number
CN201510324772.5A
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Chinese (zh)
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CN104896111A (en
Inventor
金志江
钱锦远
刘步展
高晓斐
魏琳
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Zhejiang University ZJU
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Zhejiang University ZJU
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Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN201510324772.5A priority Critical patent/CN104896111B/en
Publication of CN104896111A publication Critical patent/CN104896111A/en
Application granted granted Critical
Publication of CN104896111B publication Critical patent/CN104896111B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift 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
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/38Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side
    • F16K31/383Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side the fluid acting on a piston

Abstract

The invention discloses a kind of pilot piston type stop valve for adapting to vertical duct, including set, valve body lower cover, piston valve core, valve seat, pilot valve and cushion collar in valve upper cover, valve body, set, valve body lower cover are sequentially connected from top to bottom in the valve upper cover, valve body, inside is covered in the valve body guide sleeve is installed, guide sleeve is connected with piston valve core by floor, and floor radial equipartition is set;The plunger valve in-core is provided with spring and cushion collar, and spring is positioned at buffering set upper side;The pilot valve is arranged on the side of valve upper cover, and guide sleeve top is provided with plunger valve core cap, and plunger valve core cap is connected by pilot pipe with pilot valve;The valve body lower cover bottom is provided with water inlet, and delivery port is provided with the top of valve upper cover.The present invention uses piston valve core, in the form of being built in valve body vertically, solves the problems, such as that such guide type valve can not realize vertical use, expands the scope of application of such stop valve.

Description

A kind of pilot piston type stop valve for adapting to vertical duct
【Technical field】
The present invention relates to the technology of the technical field of stop valve, the particularly pilot piston type stop valve of adaptation vertical duct Field.
【Background technology】
Stop valve is indispensable control element in process industry pipeline, and it is used for the break-make of fluid in control piper. At present, the keying of stop valve mainly has mechanical type manual to rotate and electronic two kinds of control modes, mechanical type manual rotation stop valve Switching motion it is slow;Electric check valve is because construction complexity causes volume to increase, cost increase.To avoid disadvantages mentioned above, hair Understand guide type valve.Existing pilot piston type stop valve, by controlling the keying of pilot valve, utilize Fluid pressure, work Plug gravity and spring force realize the keying of main valve, it is possible to achieve small valve controls the effect of big valve, has certain energy-saving effect. Due to the unstability of limitation of such valve to valve size and spring in itself, dependence when such valve designs to spring is not Can be excessive, i.e., when valve is closed, the self gravitation of piston plays larger effect.It is existing in order to ensure that piston movement direction is vertical Such valve can be only installed in horizontal pipe, and can not be used in vertical or inclined pipeline.
Current existing guide type valve, Valve controlling part are typically disposed on the outside of pipeline, and pilot valve control is general Using manually, electrically, surge and the type of drive such as link, wherein control opens and closes that speed is slow, and automaticity is not high manually, and The deficiencies of mechanism is lengthy and jumbled, operation power consumption is high then be present in other several ways.
【The content of the invention】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of guided piston type for adapting to vertical duct Stop valve, the vertical motion installed in the pipeline of different angle and can keep piston is realized, avoids piston excessive with guide sleeve Friction, improve energy-saving efficiency, have that mechanism is simple, saves cost, reduces the advantages of energy consumption.
To achieve the above object, the present invention proposes a kind of pilot piston type stop valve for adapting to vertical duct, including valve Covered on body, set, valve body lower cover, piston valve core, valve seat, pilot valve and cushion collar in valve body, in the valve upper cover, valve body Set, valve body lower cover are sequentially connected from top to bottom, and inside is covered in the valve body and is provided with guide sleeve, guide sleeve leads to piston valve core Cross floor to be connected, floor radial equipartition is set;The plunger valve in-core is provided with spring and cushion collar, and spring is positioned at buffering Set upper side;The pilot valve is arranged on the side of valve upper cover, and guide sleeve top is provided with plunger valve core cap, piston valve core Lid is connected by pilot pipe with pilot valve;The valve body lower cover bottom is provided with water inlet, and delivery port is provided with the top of valve upper cover.
Preferably, the piston valve core is in vertical state all the time in guide sleeve, piston valve core and valve seat it Between seal firmly.
Preferably, the piston valve core, guide sleeve, which are both placed in valve body, covers inside.
Preferably, the piston valve core bottom is provided with aperture, water inlet passes through aperture and pilot valve phase with delivery port Connection.
Preferably, the center of the plunger valve core cap is provided with screwed hole, installed on the screwed hole of plunger valve core cap There is tubule, plunger valve core cap is connected by tubule with pilot valve.
Preferably, being provided with pressing plate in the plunger valve core cap, pressing plate is between spring and cushion collar.
Preferably, being provided with limited cover on the pressing plate, cushion collar is connected with limited cover.
Beneficial effects of the present invention:The present invention uses piston valve core, in the form of being built in valve body vertically, solves this Class guide type valve can not realize the problem of vertical use, expand the scope of application of such stop valve.By being covered in change The dimensional parameters of floor, thus it is possible to vary guide sleeve and piston valve core valve inner pose, so as to realize in difference The vertical motion of piston can be kept by being installed in the pipeline of angle, made full use of piston self gravitation, avoided piston and guide sleeve Excessive friction, improve energy-saving efficiency.Pressure differential caused by aperture at piston valve core is being flowed through using valve internal fluid As the power of valve opening, and the lifting for the keying control pressure difference for passing through pilot valve, and then the keying of control bound door.It is suitable The high-pressure duct system larger for caliber, and there is simple mechanism, saving cost, reduce the advantages of energy consumption.
The feature and advantage of the present invention will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of schematic cross-sectional view for the pilot piston type stop valve for adapting to vertical duct of the present invention.
In figure:1- valve upper covers, 2- springs, 3- plunger valves core cap, 4- limited covers, 5- pressing plates, 6- piston valve cores, 7- Set in cushion collar, 8- guide sleeves, 9- valve bodies, 10- apertures, 11- valve seats, 12- valve bodies lower cover, 13- pilot pipes, 14- pilot valves, 15- floors.
The pressure of P1- valves lower end water inlet, the pressure of P2- plunger valve core inners, the pressure of P3- valves upper end delivery port Power.
【Embodiment】
Refering to Fig. 1, the present invention, including set 9 in valve upper cover 1, valve body, valve body lower cover 12, piston valve core 6, valve seat 11, Pilot valve 14 and cushion collar 7, set 9, valve body lower cover 12 are sequentially connected from top to bottom in the valve upper cover 1, valve body, the valve body Guide sleeve 8 is installed inside middle set 9, guide sleeve 8 is connected with piston valve core 6 by floor 15, and the radial equipartition of floor 15 is set Put;Spring 2 and cushion collar 7 are installed, spring 2 is located at the upper end of cushion collar 7 in the piston valve core 6;The pilot valve 14 is pacified Mounted in the side of valve upper cover 1, the top of guide sleeve 8 is provided with plunger valve core cap 3, and plunger valve core cap 3 passes through pilot pipe 13 It is connected with pilot valve 14;The bottom of valve body lower cover 12 is provided with water inlet, and the top of valve upper cover 1 is provided with delivery port.
The piston valve core 6 is in vertical state all the time in guide sleeve 8, hard between piston valve core 6 and valve seat 11 Sealing.The piston valve core 6, guide sleeve 8 are both placed in valve body inside set 9.The bottom of piston valve core 6 is provided with aperture 10, water inlet is connected with delivery port by aperture 10 with pilot valve 14.The center of the plunger valve core cap 3 is provided with screw thread Hole, tubule is installed on the screwed hole of plunger valve core cap 3, plunger valve core cap 3 is connected by tubule with pilot valve 14.Institute State and pressing plate 5 is installed in plunger valve core cap 3, pressing plate 5 is between spring 2 and cushion collar 7.Installed on the pressing plate 5 limited Position lid 4, cushion collar 7 are connected with limited cover 4.
The course of work of the present invention:
In the course of the work, guide sleeve 8 is used to limit a kind of pilot piston type stop valve for adapting to vertical duct of the present invention The position of piston valve core 6;The upper end of plunger valve core cap 3 is sealed by valve upper cover 1 and connects pilot valve 14 by thin pipe;Guide Valve 14 can control piston valve core 6 to be connected with valve body top delivery port, and then control the motion of piston, realize opening for main valve Close.
When pilot valve 14 is closed, the pressure P2 of plunger valve core inner and the pressure P1 phases of valve lower end water inlet Together, piston valve core 6 is being conducted oneself with dignity with the presence of the elastic force of spring 2, is pressed on valve seat 11, now main valve is closed.It is first when opening Pilot valve 14, the pressure P2 of plunger valve core inner reduce, and the pressure P3 of valve upper end delivery port are equal to, due to piston valve core Internal pressure P2 is less than the pressure P1 of valve lower end water inlet, and piston valve core 6 is jacked up by pressure differential, so as to realize main valve Open.Regardless of pipe angle, as long as the angle of floor 15 in corresponding control valve on set 9, it is possible to ensure the He of guide sleeve 8 Piston valve core 6 is in vertical position all the time, and then ensures the keying of the proper motion of piston valve core 6 and main valve.
The present invention, by the use of valve internal fluid, pressure differential is used as valve caused by aperture 10 flowing through at piston valve core 6 The power that door is opened, and the lifting for the keying control pressure difference for passing through pilot valve 14, and then the keying of control bound door.It is applied to The larger high-pressure duct system of caliber, and there is simple mechanism, saving cost, reduce the advantages of energy consumption.
It is directed to set 8 to be fixed in valve body inside set 9 with the structure of floor 15, and then valve upper cover is installed on guide sleeve 8 1st, the part such as piston valve core 6, conduit.The structure of floor 15 of set 9 causes valve critical piece piston valve core 6, lived in valve body Plug cartridge cover 3 etc. is independently in inside pipeline, by the dimensional parameters that floor 15 is covered in change, thus it is possible to vary guide sleeve 8 The pose inside 9 is covered in valve body with piston valve core 6, can be kept so as to realize to install in the pipeline of different angle The vertical motion of piston, piston self gravitation is made full use of, avoid piston valve core 6 and the excessive friction of guide sleeve 8, improve section Can efficiency.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme belong to protection scope of the present invention.

Claims (5)

  1. A kind of 1. pilot piston type stop valve for adapting to vertical duct, it is characterised in that:Including being covered in valve upper cover (1), valve body (9), valve body lower cover (12), piston valve core (6), valve seat (11), pilot valve (14) and cushion collar (7), the valve upper cover (1), set (9), valve body lower cover (12) are sequentially connected from top to bottom in valve body, are covered in the valve body and are provided with guide sleeve inside (9) (8), guide sleeve (8) is connected with piston valve core (6) by floor (15), and floor (15) radial equipartition is set;The piston Spring (2) and cushion collar (7) are installed in formula valve element (6), spring (2) is located at cushion collar (7) upper end;Pilot valve (14) peace Mounted in the side of valve upper cover (1), guide sleeve (8) top is provided with plunger valve core cap (3), and plunger valve core cap (3) passes through Pilot pipe (13) is connected with pilot valve (14);Valve body lower cover (12) bottom is provided with water inlet, is set at the top of valve upper cover (1) There is delivery port, the piston valve core (6) is in vertical state, piston valve core (6) and valve seat all the time in guide sleeve (8) (11) sealed firmly between, the piston valve core (6), guide sleeve (8), which are both placed in valve body, covers (9) inside.
  2. A kind of 2. pilot piston type stop valve for adapting to vertical duct as claimed in claim 1, it is characterised in that:The piston Formula valve element (6) bottom is provided with aperture (10), and water inlet is connected with delivery port by aperture (10) with pilot valve (14).
  3. A kind of 3. pilot piston type stop valve for adapting to vertical duct as claimed in claim 1, it is characterised in that:The piston The center of formula cartridge cover (3) is provided with screwed hole, and tubule, plunger valve core cap are provided with the screwed hole of plunger valve core cap (3) (3) it is connected by tubule with pilot valve (14).
  4. A kind of 4. pilot piston type stop valve for adapting to vertical duct as claimed in claim 1, it is characterised in that:The piston Pressing plate (5) is installed in formula cartridge cover (3), pressing plate (5) is located between spring (2) and cushion collar (7).
  5. A kind of 5. pilot piston type stop valve for adapting to vertical duct as claimed in claim 4, it is characterised in that:The pressing plate (5) limited cover (4) is installed, cushion collar (7) is connected with limited cover (4) on.
CN201510324772.5A 2015-06-12 2015-06-12 A kind of pilot piston type stop valve for adapting to vertical duct Expired - Fee Related CN104896111B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510324772.5A CN104896111B (en) 2015-06-12 2015-06-12 A kind of pilot piston type stop valve for adapting to vertical duct

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Application Number Priority Date Filing Date Title
CN201510324772.5A CN104896111B (en) 2015-06-12 2015-06-12 A kind of pilot piston type stop valve for adapting to vertical duct

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CN104896111B true CN104896111B (en) 2018-01-30

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112066015B (en) * 2020-09-25 2022-05-17 浙江方顿仪表阀门有限公司 High-pressure stop valve convenient to open and close

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771931A (en) * 1996-10-31 1998-06-30 Gilmore Valve Company High pressure wear resistant pilot valve
CN2359545Y (en) * 1999-02-02 2000-01-19 许渭清 Blowoff electromagnetic valve
CN201003617Y (en) * 2007-01-13 2008-01-09 王德洪 Stop valve with pilot electric-controlled ball valve
CN201027991Y (en) * 2007-01-13 2008-02-27 王德洪 Stop valve with pilot-operated manual ball valve
CN101358664A (en) * 2008-09-04 2009-02-04 浙江大学 Stop valve with pilot valve
CN102235539A (en) * 2010-04-29 2011-11-09 浙江三花股份有限公司 Solenoid valve
CN104676020A (en) * 2013-11-29 2015-06-03 大耐泵业有限公司 Stop valve with pilot ball valve
CN204784742U (en) * 2015-06-12 2015-11-18 浙江大学 Guide's piston stop valve on adaptation vertical pipe way

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771931A (en) * 1996-10-31 1998-06-30 Gilmore Valve Company High pressure wear resistant pilot valve
CN2359545Y (en) * 1999-02-02 2000-01-19 许渭清 Blowoff electromagnetic valve
CN201003617Y (en) * 2007-01-13 2008-01-09 王德洪 Stop valve with pilot electric-controlled ball valve
CN201027991Y (en) * 2007-01-13 2008-02-27 王德洪 Stop valve with pilot-operated manual ball valve
CN101358664A (en) * 2008-09-04 2009-02-04 浙江大学 Stop valve with pilot valve
CN102235539A (en) * 2010-04-29 2011-11-09 浙江三花股份有限公司 Solenoid valve
CN104676020A (en) * 2013-11-29 2015-06-03 大耐泵业有限公司 Stop valve with pilot ball valve
CN204784742U (en) * 2015-06-12 2015-11-18 浙江大学 Guide's piston stop valve on adaptation vertical pipe way

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