CN112161072A - Ceramic core sealing flat valve - Google Patents
Ceramic core sealing flat valve Download PDFInfo
- Publication number
- CN112161072A CN112161072A CN202011020280.4A CN202011020280A CN112161072A CN 112161072 A CN112161072 A CN 112161072A CN 202011020280 A CN202011020280 A CN 202011020280A CN 112161072 A CN112161072 A CN 112161072A
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- Prior art keywords
- valve
- flashboard
- plate
- telescopic pipe
- sealing plate
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- 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
- F16K3/029—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 two or more gates
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sliding Valves (AREA)
Abstract
The invention discloses a ceramic core sealed flat valve, which comprises a valve body and a valve core, wherein the valve core is fixedly arranged in an inner cavity of the valve body, the valve core is formed by combining a valve seat and a flashboard, the valve seat is formed by combining a front sealing plate, a rear sealing plate and a supporting rod, the outer side surfaces of the front sealing plate and the rear sealing plate are respectively provided with a front flange and a rear flange through integrated molding, the front flange and the rear flange are fixedly connected with the valve body through positioning screws, and the supporting rods are of long rod structures with rectangular sections and are symmetrically provided with two supporting rods; through setting the flashboard in traditional wafer valve to constitute by first flashboard body, second flashboard body and support piece combination to through the effect of support piece with the effect of first flashboard body, second flashboard body to both ends applied force, thereby when the inside hydraulic pressure of valve body is lower, can be through its supporting role to both ends application of force, thereby avoid hydraulic pressure lower and lead to the problem that the valve body leakproofness descends.
Description
Technical Field
The invention relates to the related technical field of flat valves, in particular to a ceramic core sealing flat valve.
Background
A flat gate valve is a sliding valve whose closing member is a parallel gate plate. The closing member can be a single gate or a double gate with a spreader mechanism in between. The pressing force of the gate plate to the valve seat is controlled by the medium pressure acting on the floating gate plate or the floating valve seat. If the flat gate valve is a double-gate flat gate valve, the pressing force can be supplemented by the opening mechanism between the two gate plates, and the flat gate valve can be divided into a manual flat gate valve, a pneumatic flat gate valve and an electric flat gate valve according to a driving mode, and is mainly suitable for conveying media with suspended particles.
When the medium pressure is low in practical use of the flat gate valve, the sealing force of the metal sealing surface is insufficient to achieve satisfactory sealing. On the other hand, when the medium pressure is high, if the sealing surface is not lubricated by system medium or external medium, the frequent opening and closing can cause excessive wear of the sealing surface. Another disadvantage is that a circular gate that moves laterally across a circular flow path is more sensitive to flow control than if it were 50% of the closed position of the valve. Furthermore, the dampers can vibrate violently at high velocity and high density media flow, resulting in a low practical life span for conventional flat valves.
Disclosure of Invention
The invention aims to provide a ceramic core sealing flat valve to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a ceramic core sealed flat valve comprises a valve body and a valve core, wherein the valve core is fixedly arranged in an inner cavity of the valve body, the valve core is formed by combining a valve seat and a flashboard, the valve seat is formed by combining a front sealing plate, a rear sealing plate and supporting rods, the outer side surfaces of the front sealing plate and the rear sealing plate are respectively provided with a front flange and a rear flange through integrated molding, the front flange and the rear flange are fixedly connected with the valve body through positioning screws, the supporting rods are of long rod structures with rectangular sections and are symmetrically provided with two supporting rods, the inner side surfaces of the front sealing plate and the rear sealing plate are respectively attached to the side edges of the supporting rods, the upper end of each supporting rod is fixedly provided with a mounting seat, the center of each mounting seat is provided with a rotating shaft hole, a ball bearing is fixedly arranged in the rotating shaft hole, and a rotating shaft is fixedly arranged in the inner ring of the, the utility model discloses a quick-witted, including pivot seat, connecting rod, first flashboard body, pivot screw hole, and the lower extreme screw thread portion of pivot divide into the rotation and installs among its pivot screw hole, set up the lead screw thread on the lower extreme shaft body of pivot, and the pivot is located the axis body of the upside part of mount pad on fixed mounting have the hand wheel, the flashboard comprises first flashboard body, second flashboard body and support piece combination, and the upper end of first flashboard body passes through connecting rod fixedly connected with pivot seat, be integrated into one piece between pivot seat, connecting rod, the first flashboard body, and set up the pivot screw hole on.
Preferably, the two side surfaces of the upper end of the support rod are fixedly welded with baffles, the baffles on the two sides of the support rod and the support rod are combined to form a sliding chute structure, and the width of the notch of the sliding chute structure is matched with the thickness of the brake plate.
Preferably, the flow guide notches on the front sealing plate and the rear sealing plate are inverted V-shaped through holes, and the positions of the flow guide notches on the front sealing plate and the rear sealing plate correspond to each other.
Preferably, the support member is provided with five rows and six rows between the first ram body and the second ram body, and the total number is thirty.
Preferably, the support member comprises a first telescopic pipe, a second telescopic pipe, an outer support spring and an inner support spring, wherein the inner diameter of the first telescopic pipe is identical to the outer diameter of the second telescopic pipe, the second telescopic pipe is movably arranged in the pipe cavity of the first telescopic pipe, the outer support spring is movably sleeved on the outer side wall of the first telescopic pipe and the second telescopic pipe, the inner support spring is movably arranged in the inner cavity of the first telescopic pipe and the second telescopic pipe, a first mounting plate is integrally formed at one end of the first telescopic pipe, which is far away from the second telescopic pipe, a second mounting plate is integrally formed at one side of the second telescopic pipe, which is far away from the first telescopic pipe, the outer side surfaces of the first mounting plate and the second mounting plate are fixedly connected with the inner side surfaces of the first mounting plate and the second mounting plate respectively, and the two ends of the outer support spring and the inner support spring are equally divided into a whole with the first mounting plate, The inner side surface of the plate body of the second mounting plate is fixedly connected.
Preferably, the plate body border position of first flashboard body, second flashboard body is provided with the sealing washer, the sealing washer is the rubber seal ring who is rectangle frame column structure, and the both sides face of its sealing washer splices with the inboard fixed surface of first flashboard body, second flashboard body respectively.
Preferably, the cavity formed by combining the first gate body, the second gate body and the sealing ring is filled with inert gas.
Compared with the prior art, the invention has the beneficial effects that:
1. the flashboard in the traditional flat valve is formed by combining a first flashboard body, a second flashboard body and a supporting piece, so that the first flashboard body and the second flashboard body exert force to two ends through the supporting piece, when the hydraulic pressure in the valve body is low, the force can be exerted to the two ends through the supporting action, and the problem that the sealing property of the valve body is reduced due to the low hydraulic pressure is solved;
2. the sealing rings are arranged at the edge positions of the first flashboard body and the second flashboard body, and inert gas is filled into a cavity formed between the sealing rings and the first flashboard body and the second flashboard body, so that the supporting piece is better protected, and the actual service life of the supporting piece is effectively prolonged;
3. the support is formed by combining the first telescopic pipe, the second telescopic pipe, the outer support spring and the inner support spring, the stability of the support during movement is guaranteed through the first telescopic pipe and the second telescopic pipe, and the outer support spring and the inner support spring are used in a combined mode, so that the size of the support is controlled, meanwhile, the supporting force of the support can be effectively enhanced, and the overall sealing performance of the valve body is effectively improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a half sectional view of the valve seat of the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 3;
FIG. 5 is a semi-sectional view of the gate of the present invention;
fig. 6 is an enlarged view of the structure at C in fig. 5.
In the figure: the valve core comprises a valve core 1, a valve seat 2, a gate plate 3, a front sealing plate 4, a rear sealing plate 5, a support rod 6, a front flange 7, a rear flange 8, a baffle plate 9, a mounting seat 10, a rotating shaft 11, a hand wheel 12, a first gate plate body 13, a second gate plate body 14, a support member 15, a sealing ring 16, a connecting rod 17, a rotating shaft seat 18, a first telescopic pipe 19, a second telescopic pipe 20, an outer support spring 21, an inner support spring 22, a first mounting plate 23 and a second mounting plate 24.
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 embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-6, the present invention provides a technical solution: a ceramic core sealed flat valve comprises a valve body and a valve core 1, wherein the valve core 1 is fixedly arranged in an inner cavity of the valve body, the valve core 1 is formed by combining a valve seat 2 and a flashboard 3, the valve seat 2 is formed by combining a front sealing plate 4, a rear sealing plate 5 and support rods 6, the outer side surfaces of the front sealing plate 4 and the rear sealing plate 5 are respectively provided with a front flange 7 and a rear flange 8 through integrated molding, the front flange 7 and the rear flange 8 are fixedly connected with the valve body through positioning screws, the support rods 6 are of long rod structures with rectangular cross sections and are symmetrically provided with two, the inner side surfaces of the front sealing plate 4 and the rear sealing plate 5 are respectively attached to the side edges of the support rods 6, the upper end of each support rod 6 is fixedly provided with a mounting seat 10, the central position of the mounting seat 10 is provided with a rotating shaft hole, and a ball bearing is fixedly, a rotating shaft 11 is fixedly arranged in an inner ring of a ball bearing of the flat valve, a screw thread is arranged on a shaft body at the lower end part of the rotating shaft 11, a hand wheel 12 is fixedly arranged on the shaft body of the rotating shaft 11 positioned at the upper side part of an installation seat 10, the flashboard 3 is formed by combining a first flashboard body 13, a second flashboard body 14 and a support piece 15, the upper end of the first flashboard body 13 is fixedly connected with a rotating shaft seat 18 through a connecting rod 17, the rotating shaft seat 18, the connecting rod 17 and the first flashboard body 13 are integrally formed, a rotating shaft threaded hole is arranged on a seat body of the rotating shaft seat 18, a lower end threaded part of the rotating shaft 11 is rotatably arranged in the rotating shaft threaded hole, the flashboard in the traditional flat valve is formed by combining the first flashboard body 13, the second flashboard body 14 and the support piece 15, so that the first flashboard body 13 and the second flash, therefore, when the hydraulic pressure in the valve body is low, the force can be applied to the two ends through the supporting action of the valve body, and the problem that the sealing performance of the valve body is reduced due to the low hydraulic pressure is solved.
Furthermore, two side surfaces of the upper end of the support rod 6 are fixedly welded with baffle plates 9, the baffle plates 9 on the two sides of the support rod 6 and the support rod 6 are combined to form a sliding chute structure, and the width of a groove opening of the sliding chute structure is matched with the thickness of the flashboard 3;
further, the water conservancy diversion notch on preceding closing plate 4 and the rear sealing plate 5 is the V style of calligraphy through-hole of handstand, and the position of the water conservancy diversion notch on preceding closing plate 4 and the rear sealing plate 5 is corresponding, through setting up the water conservancy diversion notch on preceding closing plate 4 and the rear sealing plate 5 into the V style of calligraphy through-hole of handstand, thereby let the plate body of preceding closing plate 4 and rear sealing plate 5 can play assistance-localization real-time's effect to flashboard 3, thereby avoid flashboard 3 to produce violent vibration and lead to the valve body impaired when high-speed and high density medium flows.
Further, the support member 15 is provided between the first shutter body 13 and the second shutter body 14 with five rows and six rows in total, and thirty rows in total.
Furthermore, the supporting member 15 is composed of a first extension tube 19, a second extension tube 20, an outer supporting spring 21 and an inner supporting spring 22, the inner diameter of the first extension tube 19 is identical to the outer diameter of the second extension tube 20, the second extension tube 20 is movably arranged in the tube cavity of the first extension tube 19, the outer supporting spring 21 is movably sleeved on the outer side wall of the tube body of the first extension tube 19 and the second extension tube 20, the inner supporting spring 22 is movably arranged in the tube body inner cavity of the first extension tube 19 and the second extension tube 20, one end of the first extension tube 19 far away from the second extension tube 20 is integrally formed with a first mounting plate 23, one side of the second extension tube 20 far away from the first extension tube 19 is integrally formed with a second mounting plate 24, the outer side surfaces of the first mounting plate 23 and the second mounting plate 24 are respectively fixed and glued with the inner side surfaces of the first brake plate body 13 and the second brake plate body 14, and both ends of the outer support spring 21 and the inner support spring 22 are fixedly connected with the inner side surfaces of the plate bodies of the first mounting plate 23 and the second mounting plate 24 respectively, the support 15 is formed by combining the first extension tube 19, the second extension tube 20, the outer support spring 21 and the inner support spring 22, the stability of the support during movement is ensured through the first extension tube 19 and the second extension tube 20, and the outer support spring 21 and the inner support spring 22 are used in combination, so that the volume of the support 15 is controlled, the support force of the support 15 can be effectively enhanced, and the integral sealing performance of the valve body is effectively improved.
Furthermore, the edge positions of the first shutter body 13 and the second shutter body 14 are provided with a sealing ring 16, the sealing ring 16 is a rubber sealing washer with a rectangular frame-shaped structure, and two side surfaces of the sealing ring 16 are fixedly bonded with the inner side surfaces of the first shutter body 13 and the second shutter body 14 respectively.
Furthermore, inert gas is filled in a cavity formed by combining the first gate body 13, the second gate body 14 and the sealing ring 16, the sealing ring 16 is arranged at the edge position of the first gate body 13 and the second gate body 14, and the inert gas is filled in the cavity formed between the sealing ring 16 and the first gate body 13 and the second gate body 14, so that the support member 15 is better protected, and the actual service life of the support member is effectively prolonged.
The working principle is as follows: in actual use, when the gate plate 3 needs to be opened, a worker rotates the hand wheel 12 in the anticlockwise direction, thereby driving the rotating shaft 11 through the hand wheel 12, and thus driving the shutter 3 to move upward along the rotating shaft 11, and during actual liquid flow, when the shutter is not fully opened, because the flow guide groove openings on the front sealing plate 4 and the rear sealing plate 5 are inverted V-shaped through holes, the plate bodies of the front sealing plate 4 and the rear sealing plate 5 can play a role in auxiliary positioning for the flashboard 3, thereby avoiding the valve body from being damaged due to the violent vibration generated by the flashboard 3 during the high-speed and high-density medium flow, when the hydraulic pressure in the valve body is low, the supporting part 15 can support the valve body through the supporting function of the inner and outer supporting springs 21 and 22, pressure is applied to the two ends of the first gate body 13 and the second gate body 14, so that the tightness of the valve body can be guaranteed well under a low hydraulic environment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a sealed wafer valve of pottery core, includes valve body and case (1), case (1) is among the inner chamber of fixed mounting valve body, its characterized in that: the valve core (1) is formed by combining a valve seat (2) and a flashboard (3), the valve seat (2) is formed by combining a front sealing plate (4), a rear sealing plate (5) and a supporting rod (6), the outer side surfaces of the front sealing plate (4) and the rear sealing plate (5) are respectively provided with a front flange (7) and a rear flange (8) through integrated molding, the front flange (7) and the rear flange (8) are fixedly connected with a valve body through positioning screws, the supporting rod (6) is of a long rod structure with a rectangular cross section and is symmetrically provided with two long rods, the inner side surfaces of the front sealing plate (4) and the rear sealing plate (5) are respectively attached to the side edge of the supporting rod (6), the upper end of the supporting rod (6) is fixedly provided with a mounting seat (10), and the center position of the mounting seat (10) is provided with a rotating shaft hole, and fixed mounting has ball bearing in its pivot hole, and fixed mounting has pivot (11) in its ball bearing's the inner circle, set up the lead screw thread on the lower extreme axis body of pivot (11), and pivot (11) are located fixed mounting has hand wheel (12) on the axis body of the upside part of mount pad (10), flashboard (3) comprise first flashboard body (13), second flashboard body (14) and support piece (15) combination, and connecting rod (17) fixedly connected with pivot seat (18) are passed through to the upper end of first flashboard body (13), be integrated into one piece between pivot seat (18), connecting rod (17), the first flashboard body (13), and set up the pivot screw hole on the pedestal of pivot seat (18), and the lower extreme screw thread portion of pivot (11) divide into to rotate and install in its pivot screw hole.
2. The ceramic core sealed plate valve of claim 1, wherein: both sides face of the upper end of bracing piece (6) all fixed welding have baffle (9), make up between baffle (9) and bracing piece (6) of bracing piece (6) both sides and form the spout structure, and its notch width is identical with the thickness of flashboard (3).
3. The ceramic core sealed plate valve of claim 1, wherein: the flow guide notches on the front sealing plate (4) and the rear sealing plate (5) are inverted V-shaped through holes, and the positions of the flow guide notches on the front sealing plate (4) and the rear sealing plate (5) are corresponding to each other.
4. The ceramic core sealed plate valve of claim 1, wherein: the support piece (15) is arranged between the first brake plate body (13) and the second brake plate body (14) in five rows and six rows, and the total number is thirty.
5. The ceramic core sealed plate valve of claim 4, wherein: the support part (15) is formed by combining a first telescopic pipe (19), a second telescopic pipe (20), an outer support spring (21) and an inner support spring (22), the inner diameter of the pipe body of the first telescopic pipe (19) is matched with the outer diameter of the pipe body of the second telescopic pipe (20), the second telescopic pipe (20) is movably arranged in the pipe cavity of the first telescopic pipe (19), the outer support spring (21) is movably sleeved on the outer side wall of the pipe body of the first telescopic pipe (19) and the second telescopic pipe (20), the inner support spring (22) is movably arranged in the pipe cavity of the first telescopic pipe (19) and the second telescopic pipe (20), a first mounting plate (23) is integrally formed at one end, far away from the second telescopic pipe (20), of the first telescopic pipe (19), and a second mounting plate (24) is integrally formed at one side, far away from the first telescopic pipe (19), of the second telescopic pipe (20), the outer side that keeps close to of first mounting panel (23), second mounting panel (24) splices with the inboard fixed surface of first flashboard body (13), second flashboard body (14) respectively, and the both ends of outer support spring (21) and interior support spring (22) are equallyd divide and are do not connected with the inboard fixed surface of the plate body of first mounting panel (23), second mounting panel (24).
6. The ceramic core sealed plate valve of claim 1, wherein: the plate body border position of first flashboard body (13), second flashboard body (14) is provided with sealing washer (16), sealing washer (16) are the rubber seal ring that is rectangular frame column structure, and the both sides face of its sealing washer (16) splices with the inboard fixed surface of first flashboard body (13), second flashboard body (14) respectively.
7. The ceramic core sealed plate valve of claim 6, wherein: and inert gas is filled in a cavity formed by combining the first gate body (13), the second gate body (14) and the sealing ring (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020280.4A CN112161072A (en) | 2020-09-24 | 2020-09-24 | Ceramic core sealing flat valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020280.4A CN112161072A (en) | 2020-09-24 | 2020-09-24 | Ceramic core sealing flat valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112161072A true CN112161072A (en) | 2021-01-01 |
Family
ID=73863787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011020280.4A Pending CN112161072A (en) | 2020-09-24 | 2020-09-24 | Ceramic core sealing flat valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN112161072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113154065A (en) * | 2021-04-25 | 2021-07-23 | 基元科技(云南)有限公司 | Gate valve based on polyurethane wear-resistant material |
| CN113639091A (en) * | 2021-08-28 | 2021-11-12 | 杭州富阳良工仪表有限公司 | High-precision energy-saving flow regulating valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154065A (en) * | 2021-04-25 | 2021-07-23 | 基元科技(云南)有限公司 | Gate valve based on polyurethane wear-resistant material |
| CN113154065B (en) * | 2021-04-25 | 2024-02-06 | 基元科技(云南)有限公司 | Gate valve based on polyurethane wear-resistant material |
| CN113639091A (en) * | 2021-08-28 | 2021-11-12 | 杭州富阳良工仪表有限公司 | High-precision energy-saving flow regulating valve |
| CN113639091B (en) * | 2021-08-28 | 2023-08-18 | 杭州富阳良工仪表有限公司 | High-precision energy-saving flow regulating valve |
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Application publication date: 20210101 |