CN113898745A - High-temperature vacuum butterfly valve with water cooling function - Google Patents

High-temperature vacuum butterfly valve with water cooling function Download PDF

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Publication number
CN113898745A
CN113898745A CN202111214995.8A CN202111214995A CN113898745A CN 113898745 A CN113898745 A CN 113898745A CN 202111214995 A CN202111214995 A CN 202111214995A CN 113898745 A CN113898745 A CN 113898745A
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CN
China
Prior art keywords
water
valve rod
linkage seat
seat
valve
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Granted
Application number
CN202111214995.8A
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Chinese (zh)
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CN113898745B (en
Inventor
陈钊
陈秀钦
颜伟勇
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Zhejiang Xinhua Valve Manufacturing Co ltd
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Zhejiang Xinhua Valve Manufacturing Co ltd
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Priority to CN202111214995.8A priority Critical patent/CN113898745B/en
Publication of CN113898745A publication Critical patent/CN113898745A/en
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Publication of CN113898745B publication Critical patent/CN113898745B/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
    • F16K1/16Lift 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 pivoted closure-members
    • F16K1/18Lift 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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift 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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/224Details of bearings for the axis of rotation
    • 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
    • F16K1/16Lift 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 pivoted closure-members
    • F16K1/18Lift 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 pivoted closure-members with pivoted discs or flaps
    • F16K1/22Lift 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 pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226Shaping or arrangements of the sealing
    • F16K1/2268Sealing means for the axis of rotation
    • 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
    • F16K27/08Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre 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
    • F16K41/00Spindle sealings
    • F16K41/02Spindle sealings with stuffing-box ; Sealing rings
    • 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
    • F16K41/00Spindle sealings
    • F16K41/02Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • 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
    • F16K49/00Means in or on valves for heating or cooling
    • 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
    • F16K49/00Means in or on valves for heating or cooling
    • F16K49/005Circulation means for a separate heat transfer fluid
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Abstract

The invention relates to a high-temperature vacuum butterfly valve with a water cooling function, which comprises a valve seat, a disc plate and a valve rod, wherein one end of the valve seat is fixedly provided with a linkage seat, a sealing mechanism is arranged between the linkage seat and the valve rod, the linkage seat is hollow, and two ends of the linkage seat are provided with openings, and the high-temperature vacuum butterfly valve is characterized in that: the linkage seat comprises a sealing area linked with a sealing mechanism, and a water cooling area which is distributed on one side of the sealing area and can cool the valve rod, wherein the water cooling area is provided with a water chamber, the water chamber is distributed in the side wall of the linkage seat and surrounds the periphery of the valve rod for a whole circle, the water cooling area is also provided with a plurality of radiating holes distributed in the water chamber and positioned on one side of the valve rod, and heat-conducting metal columns are welded in the radiating holes. The invention has the beneficial effects that: the high-temperature vacuum butterfly valve with the water cooling function delays the aging of the valve rod, protects the valve rod, prolongs the service life of the valve rod, improves the overall working performance of the butterfly valve and enables the valve rod to work more smoothly.

Description

High-temperature vacuum butterfly valve with water cooling function
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a high-temperature vacuum butterfly valve with a water cooling function.
Background
The vacuum butterfly valve is used in the industries of electric power and the like, in particular to a vacuum pipeline which is used for the medium in a pipeline to be steam or air and is used for through-flow or cut-off. The existing vacuum butterfly valve mainly comprises a valve seat, a disc plate and a valve rod, wherein the valve rod is distributed on the side area of the valve seat and is inserted into the valve seat in a penetrating way, the disc plate is arranged in the middle of the valve seat and is linked with the valve rod, and the end part of the valve rod is linked with a power device so as to further drive the disc plate to do rotary motion around the central axis of the valve rod and control through-flow and cut-off.
Because the service environment ubiquitous high temperature of vacuum butterfly valve inevitably can cause the influence to the valve rod, especially in the linkage position of valve rod and disk seat. Because the valve seat keeps still in a working state and the valve rod makes intermittent rotary motion, the valve seat and the valve rod are in a relative motion state, abrasion and stress collision are inevitably generated in a linkage area of the valve seat and the valve rod, and therefore the area needs to be cooled in time so as to delay aging acceleration of the valve rod along with temperature rise.
In the existing vacuum butterfly valve, the sealing between the valve rod and the valve seat mainly depends on O-shaped sealing rings, and the sealing performance is realized by installing a plurality of groups of O-shaped sealing rings at the end part of the valve seat, however, the butterfly valve works under the condition that the pressure in a pipeline is lower than the atmospheric pressure (namely, a negative pressure state), and the requirement on the sealing performance is higher, so that the improvement of the sealing structure is necessary to meet the high-requirement working environment.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a high-temperature vacuum butterfly valve with a water cooling function, which can delay the aging of a valve rod, protect the valve rod, prolong the service life of the valve rod, improve the overall working performance of the butterfly valve and enable the valve rod to work more smoothly.
In order to achieve the purpose, the invention provides the following technical scheme: high temperature vacuum butterfly valve that possesses water-cooling function, including disk seat, dish board, valve rod, the fixed linkage seat that is equipped with of disk seat one end, the valve rod is along disk seat radial distribution and both ends respectively with linkage seat, disk seat other end rotatable coupling, the dish board just distributes in the disk seat middle part with the relative fixed connection of valve rod, be equipped with sealing mechanism between linkage seat and the valve rod, the inside cavity of linkage seat and both ends opening set up, its characterized in that, the linkage seat includes with sealing mechanism linkage the sealing area, distribute in sealing area one side and can be to the water-cooling district of valve rod cooling, the water-cooling district is equipped with the water cavity room, the water cavity room distributes in linkage seat lateral wall and encircles a whole circle of valve rod periphery, the water-cooling district still is equipped with a plurality of components and distributes in the water cavity room and is located the louvre of keeping away from valve rod one side, the welding has the heat conduction metal post in the louvre.
By adopting the technical scheme, the linkage seat is divided into a sealing area and a water cooling area, and the sealing area is used for installing a sealing mechanism so as to realize a sealing function; the water cooling zone is mainly used for cooling a linkage zone bit of the valve rod and the linkage seat, delaying the aging of the valve rod, protecting the valve rod, prolonging the service life of the valve rod, relieving the stress impact between the valve rod and the linkage seat caused by high temperature, improving the integral working performance of the butterfly valve and promoting the valve rod to work more smoothly; wherein, through setting up the water cavity, pour into cold water in the water cavity, do the cooling through cold water, further set up heat conduction metal post (because the material of butterfly valve mainly adopts steel, so the material of heat conduction metal post chooses for use specific heat capacity be greater than steel can), dispel the temperature in the water cavity for the cooling.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: one end of the heat-conducting metal column extends towards the far position until extending into the water cavity, one end of the heat-conducting metal column, which is located in the water cavity, is fixedly connected with a heat-conducting wire, and the heat-conducting wire is annular and encircles a whole circle of the periphery of the valve rod.
Adopt above-mentioned technical scheme, the effect of heat conduction silk is mainly to guide the heat to heat conduction metal post department, further accelerates the cooling, promotes the cooling effect.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the heat-conducting metal column is located at the end part far away from the water cavity and is fixedly connected with a heat-radiating metal sheet, and two ends of the heat-radiating metal sheet are bonded with the linkage seat through spot welding respectively.
Adopt above-mentioned technical scheme, heat dissipation sheetmetal increases heat radiating area, further accelerates the cooling, promotes the cooling effect to install in linkage seat outer wall through spot welding, can prevent that heat dissipation sheetmetal from deforming.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the water-cooling district still is equipped with thermal-insulated chamber, thermal-insulated chamber sets up in linkage seat lateral wall and distributes in the tip that the water cavity is close to sealing mechanism along linkage seat axial direction, be vacuum or husky in the thermal-insulated intracavity.
Adopt above-mentioned technical scheme, through setting up thermal-insulated chamber, can adopt vacuum design or fill sand in the thermal-insulated intracavity and handle, prevent that the heat from extending to the sealing area.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the water chamber is provided with a water outlet outside, and the water outlet is detachably connected with a plug.
By adopting the technical scheme, the water outlet is arranged, so that the water in the water cavity is convenient to replace; the plug is used for plugging the water outlet.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the sealing mechanism comprises a gland, a plugging elastic sheet, and a first rubber sealing element and a second rubber sealing element which are distributed at two ends of the plugging elastic sheet, wherein the inner peripheral surface of the first rubber sealing element is in conflict connection with the periphery of the valve rod, the outer peripheral surface of the second rubber sealing element is in conflict connection with the inner wall of the linkage seat, two ends of the plugging elastic sheet are detachably connected with the first rubber sealing element and the second rubber sealing element respectively, the first rubber sealing element and the second rubber sealing element are in staggered distribution along the central axis direction of the valve rod, and the gland is distributed at the end part of a sealing area and is arranged between the linkage seat and the valve rod.
By adopting the technical scheme, the elastic force of the plugging elastic sheet is utilized, when pressure impact is carried out, the plugging elastic sheet can extrude the first rubber sealing element and the second rubber sealing element towards two ends, so that the two sealing elements and parts which are in butt joint with each other are more compact, the sealing performance is more excellent along with the increase of the pressure, compared with the prior art, the sealing mechanism is improved, the traditional O-shaped ring sealing structure is cancelled, the sealing performance is more excellent, and the sealing performance is better along with the increase of the pressure; further, the gland is mainly used for limiting the first rubber sealing element, the second rubber sealing element and the plugging elastic sheet.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the shutoff shell fragment includes the double-deck metal lamellar body that stacks, the side that first rubber seal is located to keep away from the valve rod is equipped with the slot of two sets of symmetric distributions, and the both ends of double-deck metal lamellar body insert respectively in the slot and be the tight fit with the slot, the terminal surface that second rubber seal is located to keep away from the water-cooling district is equipped with the ladder groove, and the double-deck metal lamellar body two stacks gradually and laminates with the ladder groove.
By adopting the technical scheme, the plugging elastic sheet, the first rubber sealing element and the second rubber sealing element can be stably connected in a working state through the slot and the stepped groove, and the assembly is convenient; the blocking elastic sheet is formed by metal sheet bodies stacked in double layers, so that the blocking elastic sheet has good flexibility and is not easy to age.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: the middle part of the metal sheet body is provided with a plurality of groups of bending points formed by bending the metal sheet body in sequence.
By adopting the technical scheme, when the metal sheet body is impacted by pressure, the stress part is mainly concentrated at the bending point, and the two ends of the metal sheet body are prevented from being respectively taken as main stress points with the joint of the two sealing pieces, so that the plugging elastic sheet can be ensured to change along the expected direction when in a stress state, and the sealing is ensured to be complete.
The high-temperature vacuum butterfly valve with the water cooling function can be further arranged as follows: and a bearing is arranged between the linkage seat and the valve rod and is distributed between the water cooling area and the sealing area.
By adopting the technical scheme, the bearing is arranged, so that the valve rod can rotate in the linkage seat, the resistance is reduced, and the transmission efficiency is higher.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic cross-sectional view of a linkage seat in an overall state according to an embodiment of the present invention;
FIG. 2 is a schematic view at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of a first rubber seal of an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a second rubber seal of an embodiment of the present invention;
FIG. 5 is a schematic view of a portion of the linkage seat at the blockage according to the embodiment of the present invention;
fig. 6 is a schematic view at B in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiment is only a distinguished embodiment of the present invention, and not a full-area embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 6, the high-temperature vacuum butterfly valve with water cooling function includes a valve seat 1, a disc plate 2, and a valve rod 3, wherein a linkage seat 4 is fixedly disposed at one end of the valve seat 1, the valve rod 3 is radially disposed along the valve seat 1, and two ends of the valve rod 3 are rotatably connected to the linkage seat 4 and the other end of the valve seat 1, the disc plate 2 and the valve rod 3 are relatively fixedly connected and disposed at the middle portion of the valve seat 1, a sealing mechanism 5 is disposed between the linkage seat 4 and the valve rod 3, the linkage seat 4 is hollow and has two open ends, the linkage seat 4 includes a sealing area 42 linked with the sealing mechanism 5, and a water cooling area 41 disposed at one side of the sealing area 42 and capable of cooling the valve rod 3, the water cooling area 41 is provided with a water chamber 411, the water chamber 411 is disposed in a side wall of the linkage seat 4 and surrounds an entire periphery of the valve rod 3, the water cooling area 41 is further provided with two sets of heat dissipation holes 412 disposed at one side of the water chamber 411 away from the valve rod 3, heat conducting metal posts 413 are welded in the heat dissipation holes 412. Through setting up water cavity 411, inject cold water in water cavity 411, do the cooling through cold water, further set up heat conduction metal post 413 (because the material of butterfly valve mainly adopts steel, so heat conduction metal post 413's material chooses for use specific heat capacity to be greater than steel can), dispel the temperature in the water cavity 411 for the cooling.
One end of the heat-conducting metal column 413 extends far to the water chamber 411, one end of the heat-conducting metal column 413 located in the water chamber 411 is fixedly connected with a heat-conducting wire 414, and the heat-conducting wire 414 is annular and surrounds the periphery of the valve rod 3 for a whole circle. The heat conducting wires 414 are mainly used for guiding heat to the heat conducting metal columns 413, so that cooling is further accelerated, and the cooling effect is improved.
The end part of the heat-conducting metal column 413 far away from the water chamber 411 is relatively and fixedly connected with a heat-radiating metal sheet 415, and two ends of the heat-radiating metal sheet 415 are respectively bonded with the linkage seat 4 through spot welding. The radiating metal sheet 415 increases the radiating area, further accelerates the cooling, improves the cooling effect, and is installed on the outer wall of the linkage seat 4 through spot welding, so that the radiating metal sheet 415 can be prevented from being deformed.
The water cooling area 41 is further provided with a heat insulation cavity 416, the heat insulation cavity 416 is arranged in the side wall of the linkage seat 4 and distributed at the end part of the water cavity 411 close to the sealing mechanism 5 along the axial direction of the linkage seat 4, and vacuum or sand is arranged in the heat insulation cavity 416. By providing the insulated chamber 416, a vacuum design or sand-packed treatment may be used within the insulated chamber 416 to prevent heat from extending to the sealed area 42.
A water outlet is arranged on the outer side of the water chamber 411, and a plug 417 is detachably connected to the water outlet. A water outlet is arranged, so that water in the water chamber 411 can be replaced conveniently; the plug 417 is used to plug the outlet.
The sealing mechanism 5 comprises a gland 51, a plugging elastic sheet 54, and a first rubber sealing element 52 and a second rubber sealing element 53 which are distributed at two ends of the plugging elastic sheet 54, wherein the inner circumferential surface of the first rubber sealing element 52 is in abutting connection with the outer circumference of the valve rod 3, the outer circumferential surface of the second rubber sealing element 53 is in abutting connection with the inner wall of the linkage seat 4, two ends of the plugging elastic sheet 54 are detachably connected with the first rubber sealing element 52 and the second rubber sealing element 53 respectively, the first rubber sealing element 52 and the second rubber sealing element 53 are in staggered distribution along the central axis direction of the valve rod 3, and the gland 51 is distributed at the end part of the sealing area 42 and is arranged between the linkage seat 4 and the valve rod 3. By utilizing the elastic force of the blocking elastic sheet 54, when the pressure impacts, the blocking elastic sheet 54 can extrude the first rubber sealing element 52 and the second rubber sealing element 53 towards two ends to enable the two sealing elements and parts which are in butt joint with each other to be tighter, so that the sealing performance is more excellent along with the increase of the pressure; further, the gland 51 is mainly used for limiting the first rubber sealing element 52, the second rubber sealing element 53 and the blocking elastic sheet 54.
The shutoff shell fragment 54 includes the double-deck metal sheet body 541 that stacks, first rubber seal 52 is located the side of keeping away from valve rod 3 and is equipped with the slot 521 of two sets of symmetric distributions, and the both ends of the double-deck metal sheet body 541 insert respectively in the slot 521 and be the tight fit with the slot 521, the terminal surface that second rubber seal 53 is located away from water-cooling district 41 is equipped with the ladder groove 531, and the double-deck metal sheet body 541 two stacks gradually and laminates with ladder groove 531. The plugging elastic sheet 54, the first rubber sealing element 52 and the second rubber sealing element 53 can be stably connected in a working state through the slot 521 and the stepped groove 531, and the assembly is convenient, wherein during the assembly, the plugging elastic sheet 54 is firstly inserted into the slot 521, then the second rubber sealing element 53 is plugged into the linkage seat 4, and finally the end part of the plugging elastic sheet 54 is abutted to the stepped groove 531; the blocking elastic sheet 54 is formed by a metal sheet body 541 which is stacked in double layers, so that the blocking elastic sheet 54 has good flexibility and is not easy to age.
The middle of the metal sheet 541 is provided with a plurality of bending points 542 formed by sequentially bending the metal sheet 541. When the metal sheet 541 is impacted by pressure, the stressed portion is mainly concentrated at the bending point 542, and the connection between the two ends of the metal sheet 541 and the two sealing members is avoided to be the main stress point, so that the plugging elastic sheet 54 can be ensured to change along the expected direction when in a stressed state, and complete sealing is ensured.
And a bearing 6 is arranged between the linkage seat 4 and the valve rod 3, and the bearing 6 is distributed between the water cooling area 41 and the sealing area 42. Through setting up bearing 6, be favorable to valve rod 3 to do the rotation in linkage seat 4, reduce the resistance, transmission efficiency is higher.
The above-described embodiment has the following advantages:
the linkage seat 4 is divided into a sealing area 42 and a water cooling area 41, the sealing area 42 is used for installing a sealing mechanism 5 to realize a sealing function, the water cooling area 41 is mainly used for cooling the linkage areas of the valve rod 3 and the linkage seat 4, delaying the aging of the valve rod 3, protecting the valve rod 3, prolonging the service life of the valve rod 3, relieving the stress impact between the valve rod 3 and the linkage seat 4 caused by high temperature, improving the integral working performance of the butterfly valve and promoting the valve rod 3 to work more smoothly;
the sealing mechanism 5 is improved, the traditional O-shaped ring sealing structure is omitted, the sealing performance is more excellent, and the sealing performance is better when the pressure is higher;
the valve rod 3 has small rotation resistance and higher transmission efficiency.

Claims (9)

1. High temperature vacuum butterfly valve that possesses water-cooling function, including disk seat, dish board, valve rod, the fixed linkage seat that is equipped with of disk seat one end, the valve rod along disk seat radial distribution and both ends respectively with linkage seat, disk seat other end rotatable coupling, the dish board just distributes in the disk seat middle part with the relative fixed connection of valve rod, be equipped with sealing mechanism between linkage seat and the valve rod, the inside cavity of linkage seat and both ends opening set up its characterized in that: the linkage seat comprises a sealing area linked with a sealing mechanism, and a water cooling area which is distributed on one side of the sealing area and can cool the valve rod, wherein the water cooling area is provided with a water chamber, the water chamber is distributed in the side wall of the linkage seat and surrounds the periphery of the valve rod for a whole circle, the water cooling area is also provided with a plurality of radiating holes distributed in the water chamber and positioned on one side of the valve rod, and heat-conducting metal columns are welded in the radiating holes.
2. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1, wherein: one end of the heat-conducting metal column extends towards the far position until extending into the water cavity, one end of the heat-conducting metal column, which is located in the water cavity, is fixedly connected with a heat-conducting wire, and the heat-conducting wire is annular and encircles a whole circle of the periphery of the valve rod.
3. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1 or 2, wherein: the heat-conducting metal column is located at the end part far away from the water cavity and is fixedly connected with a heat-radiating metal sheet, and two ends of the heat-radiating metal sheet are bonded with the linkage seat through spot welding respectively.
4. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1, wherein: the water-cooling district still is equipped with thermal-insulated chamber, thermal-insulated chamber sets up in linkage seat lateral wall and distributes in the tip that the water cavity is close to sealing mechanism along linkage seat axial direction, be vacuum or husky in the thermal-insulated intracavity.
5. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1 or 4, wherein: the water chamber is provided with a water outlet outside, and the water outlet is detachably connected with a plug.
6. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1 or 4, wherein: the sealing mechanism comprises a gland, a plugging elastic sheet, and a first rubber sealing element and a second rubber sealing element which are distributed at two ends of the plugging elastic sheet, wherein the inner peripheral surface of the first rubber sealing element is in conflict connection with the periphery of the valve rod, the outer peripheral surface of the second rubber sealing element is in conflict connection with the inner wall of the linkage seat, two ends of the plugging elastic sheet are detachably connected with the first rubber sealing element and the second rubber sealing element respectively, the first rubber sealing element and the second rubber sealing element are in staggered distribution along the central axis direction of the valve rod, and the gland is distributed at the end part of a sealing area and is arranged between the linkage seat and the valve rod.
7. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 6, wherein: the shutoff shell fragment includes the double-deck metal lamellar body that stacks, the side that first rubber seal is located to keep away from the valve rod is equipped with the slot of two sets of symmetric distributions, and the both ends of double-deck metal lamellar body insert respectively in the slot and be the tight fit with the slot, the terminal surface that second rubber seal is located to keep away from the water-cooling district is equipped with the ladder groove, and the double-deck metal lamellar body two stacks gradually and laminates with the ladder groove.
8. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 7, wherein: the middle part of the metal sheet body is provided with a plurality of groups of bending points formed by bending the metal sheet body in sequence.
9. The high-temperature vacuum butterfly valve with the water-cooling function according to claim 1, wherein: and a bearing is arranged between the linkage seat and the valve rod and is distributed between the water cooling area and the sealing area.
CN202111214995.8A 2021-10-19 2021-10-19 High-temperature vacuum butterfly valve with water cooling function Active CN113898745B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111214995.8A CN113898745B (en) 2021-10-19 2021-10-19 High-temperature vacuum butterfly valve with water cooling function

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Application Number Priority Date Filing Date Title
CN202111214995.8A CN113898745B (en) 2021-10-19 2021-10-19 High-temperature vacuum butterfly valve with water cooling function

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Publication Number Publication Date
CN113898745A true CN113898745A (en) 2022-01-07
CN113898745B CN113898745B (en) 2023-03-07

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN213982102U (en) * 2020-11-30 2021-08-17 杭州鄂达精密机电科技有限公司 Anti-lock integrated sealing ball valve
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB582421A (en) * 1942-08-05 1946-11-15 Thompson Prod Inc Improvements in or relating to couplings for pipes, tubes and the like
JPH04151084A (en) * 1990-10-09 1992-05-25 Okano Valve Seizo Kk Shaft sealing part structure
CN201053508Y (en) * 2007-06-13 2008-04-30 谢贵春 Water-cooling butterfly valve
JP2014003128A (en) * 2012-06-18 2014-01-09 Shimada Denki Kk Cable clamp device of explosion-proof type cable ground
CN107152560A (en) * 2017-07-05 2017-09-12 安徽省屯溪高压阀门有限公司 A kind of water-cooling type high temperature forging steel valve
CN207454787U (en) * 2017-10-23 2018-06-05 保一集团有限公司 Very stiff and demanding sealing rotary butterfly valve
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CN213982102U (en) * 2020-11-30 2021-08-17 杭州鄂达精密机电科技有限公司 Anti-lock integrated sealing ball valve
CN113431905A (en) * 2021-06-18 2021-09-24 铜陵有色金属集团股份有限公司 High-temperature flue gas pipeline valve

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