CN110878839B - High-temperature-resistant valve - Google Patents

High-temperature-resistant valve Download PDF

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Publication number
CN110878839B
CN110878839B CN201911142589.8A CN201911142589A CN110878839B CN 110878839 B CN110878839 B CN 110878839B CN 201911142589 A CN201911142589 A CN 201911142589A CN 110878839 B CN110878839 B CN 110878839B
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China
Prior art keywords
temperature
baffle
low
valve
chamber
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CN201911142589.8A
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Chinese (zh)
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CN110878839A (en
Inventor
张建军
周盛妮
冯自平
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Guangzhou Institute of Energy Conversion of CAS
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Guangzhou Institute of Energy Conversion of CAS
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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
    • F16K1/00—Lift 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
    • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
    • 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
    • F16K1/00—Lift 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like
    • F16L59/161—Housings for valves, tee pieces, or the like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

The invention discloses a high-temperature-resistant valve which comprises a fixed baffle and a movable baffle, wherein the fixed baffle divides the interior of the valve into a high-temperature chamber and a low-temperature chamber, the fixed baffle comprises a first high-temperature baffle, a first heat insulation layer and a first low-temperature baffle, the first high-temperature baffle is close to the high-temperature chamber, the first low-temperature baffle is close to the low-temperature chamber, the movable baffle is the same as the fixed baffle in structure, an opening which is matched with the movable baffle in shape is formed in the fixed baffle, a sliding positioning rod which spans the high-temperature chamber and the low-temperature chamber is arranged at the opening, and the movable baffle moves along. The baffle plate and the heat insulation layer are arranged between the high-temperature chamber and the low-temperature chamber, only the baffle plate of the high-temperature chamber needs to be capable of bearing high temperature, the baffle plate of the low-temperature chamber can be made of conventional materials, the cost of a high-temperature resistant valve can be saved, and the flow can be effectively controlled by adjusting the opening degree between the movable baffle plate and the fixed baffle plate. The high-temperature-resistant valve has the characteristics of low cost, good heat insulation effect, simplicity in operation and the like.

Description

High-temperature-resistant valve
Technical Field
The invention relates to the technical field of high-temperature-resistant valves, in particular to a high-temperature-resistant valve.
Background
In a process industrial fluid regulating system, a valve is an essential important device, and is an important switch control element consisting of a control mechanism and a valve in an automatic control system. The high-temperature valve is an actuator which can be used for adjusting pressure and flow, cutting off fluid and changing flow direction at high temperature, the adjustment and control of the high-temperature valve are always difficult points in the actual execution of automatic control, and the cutting-off difficulty is higher particularly under the conditions of high temperature and ultrahigh temperature. Generally, valve materials can generate blocking and cutting due to high-temperature expansion, so that the high-temperature valve has higher requirements on the materials and higher cost, and a novel high-temperature valve which is low in cost, simple and easy to control and can effectively and reliably operate needs to be explored.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a high-temperature-resistant valve.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a high-temperature-resistant valve comprises a fixed baffle and a movable baffle, wherein the fixed baffle divides the interior of the valve into a high-temperature chamber and a low-temperature chamber, the fixed baffle comprises a first high-temperature baffle, a first heat insulation layer and a first low-temperature baffle, the first high-temperature baffle is close to the high-temperature chamber, the first low-temperature baffle is close to the low-temperature chamber, the movable baffle comprises a second high-temperature baffle, a second heat insulation layer and a second low-temperature baffle, the second high-temperature baffle is close to the high-temperature chamber, the second low-temperature baffle is close to the low-temperature chamber, an opening with the shape matched with that of the movable baffle is formed in the fixed baffle, a sliding positioning rod spanning the high-temperature chamber and the low-temperature chamber is arranged at the opening, the movable baffle moves along the axial direction of the sliding positioning rod to be matched with the opening to separate the high-temperature chamber and the low, the driving assembly is arranged on one side surface of the movable baffle plate close to the low-temperature chamber.
Furthermore, the first high-temperature baffle extends towards the middle of the opening to form a first convex edge.
Further, a second convex edge extends from the second low-temperature baffle plate to the outer side of the movable baffle plate.
Further, the thickness of the movable baffle plate is the same as that of the fixed baffle plate.
Further, the thickness of the second high-temperature baffle is the same as that of the first high-temperature baffle, the thickness of the second low-temperature baffle is the same as that of the second high-temperature baffle, and the thickness of the second heat insulation layer is the same as that of the first heat insulation layer.
Furthermore, the driving assembly is in threaded connection with the sliding positioning rod, the movable baffle is fixedly connected with the end portion of the driving assembly, the planar shape of the movable baffle is circular, and the axial direction of the sliding positioning rod is perpendicular to the fixed baffle.
Further, the driving assembly comprises a low-temperature valve boosting valve rod fixedly connected with a second low-temperature baffle and a high-temperature valve rod fixedly connected with a second high-temperature baffle, the high-temperature valve rod penetrates through the second low-temperature baffle, a second heat insulation layer and the second high-temperature baffle, and the low-temperature valve boosting valve rod is arranged on the outer side of the high-temperature valve rod.
Further, the first high-temperature baffle and the second high-temperature baffle are made of high-temperature resistant materials.
Further, the first heat insulation layer and the second heat insulation layer are filled with heat insulation materials with low heat conductivity or made in a vacuum mode.
Compared with the prior art, the invention has the following advantages:
the baffle plate and the heat insulation layer are arranged between the high-temperature chamber and the low-temperature chamber, only the baffle plate of the high-temperature chamber needs to be capable of bearing high temperature, the baffle plate of the low-temperature chamber can be made of conventional materials, and the cost of a high-temperature resistant valve can be saved. The heat insulating layer is filled with a material with low thermal conductivity or vacuumized, so that the heat exchange between the two air chambers is greatly reduced. Meanwhile, the flow can be effectively controlled by adjusting the opening degree between the movable baffle and the fixed baffle. Therefore, the high-temperature-resistant valve has the characteristics of low cost, good heat insulation effect, simplicity in operation and the like.
Drawings
FIG. 1 is a schematic structural view of a high temperature resistant valve in a closed state;
FIG. 2 is a schematic structural view of an opened state of a high temperature resistant valve;
description of reference numerals: 1. fixing a baffle plate; 11. a first high temperature baffle; 111. a first flange; 12. a first insulating layer; 13. a first cryogenic baffle; 2. a movable baffle; 21. a second high temperature baffle; 22. a second thermal insulation layer; 23. a second low temperature baffle; 231. a second flange; 3. sliding the positioning rod; 4. a drive assembly; 41. a low temperature valve assist valve stem; 42. a high temperature valve stem.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Examples
As shown in fig. 1 and 2, a high temperature resistant valve comprises a fixed baffle 1 and a movable baffle 2, wherein the fixed baffle 1 divides the interior of the valve into a high temperature chamber and a low temperature chamber, the fixed baffle 1 comprises a first high temperature baffle 11, a first heat insulation layer 12 and a first low temperature baffle 13, the first high temperature baffle 11 is close to the high temperature chamber, the first low temperature baffle 13 is close to the low temperature chamber, the movable baffle 2 comprises a second high temperature baffle 21, a second heat insulation layer 22 and a second low temperature baffle 23, the second high temperature baffle 21 is close to the high temperature chamber, and the second low temperature baffle 23 is close to the low temperature chamber.
The first high temperature baffle 11 and the second high temperature baffle 21 are used as baffles close to the high temperature chamber, and the material thereof should be made of high temperature resistant material, such as high temperature alloy steel, so as to be able to well withstand the high temperature (800 ℃ -1300 ℃) in the high temperature chamber. The primary and secondary insulating layers 12 and 22 serve to separate heat from the high temperature chamber so that it is difficult to transfer the heat into the low temperature chamber, and are formed by filling a material having low thermal conductivity or by evacuating the material so as to prevent heat exchange between the high temperature chamber and the low temperature chamber to the maximum. Specifically, the low thermal conductivity material may employ glass fiber, aerogel blanket, or the like. Although the first low-temperature baffle 13 and the second low-temperature baffle 23 are disposed on the side close to the low-temperature chamber, actually, the low-temperature chamber is only the low temperature relative to the high-temperature chamber, and the temperature of the low-temperature chamber is practically the same as the normal temperature, so the requirement on the temperature-bearing capacity of the materials of the first low-temperature baffle 13 and the second low-temperature baffle 23 is not high, and the conventional low-cost materials can be used.
An opening matched with the movable baffle 2 in shape is formed in the fixed baffle 1, a sliding positioning rod 3 crossing the greenhouse and the low-temperature chamber is arranged at the opening, the movable baffle 2 moves along the axial direction of the sliding positioning rod 3 to be matched with the opening to separate the high-temperature chamber from the low-temperature chamber, a driving assembly 4 used for driving the movable baffle 2 to be matched with the opening is arranged on the movable baffle 2, and the driving assembly 4 is arranged on one side face, close to the low-temperature chamber, of the movable baffle 2. Thereby drive adjustable fender 2 through drive assembly 4 and move along the axial direction of slip locating lever 3, make whole valve realize opening and close.
In order to improve the sealing degree, the thickness of the movable baffle 2 is the same as that of the fixed baffle 1, the thickness of the second high-temperature baffle 21 is the same as that of the first high-temperature baffle 11, the thickness of the second low-temperature baffle 23 is the same as that of the second high-temperature baffle 21, and the thickness of the second heat insulation layer 22 is the same as that of the first heat insulation layer 12. Meanwhile, the first high-temperature baffle plate 11 extends towards the opening middle direction to form a first convex edge 111, and the second low-temperature baffle plate 23 extends towards the outer side of the movable baffle plate 2 to form a second convex edge 231. When the movable baffle 2 is matched with the opening, the second high-temperature baffle 21 abuts against the first convex edge 111 of the first high-temperature baffle 11, and the second convex edge 231 of the second low-temperature baffle 23 abuts against the first low-temperature baffle 13, so that a labyrinth structure is formed, and the sealing degree of the labyrinth structure is improved.
The driving assembly 4 is in threaded connection with the sliding positioning rod 3, the movable baffle 2 is fixedly connected with the end part of the driving assembly 4, the opening is circular, and the axial direction of the sliding positioning rod 3 is perpendicular to the fixed baffle 1. Due to the arrangement, the movable baffle 2 is driven to move in a threaded connection mode, so that the opening degree of the movable baffle can be better controlled, and the flow of the valve can be effectively controlled by controlling the opening degree of the movable baffle.
Drive assembly 4 includes the low temperature valve helping hand valve rod 41 with second low temperature baffle 23 fixed connection and the high temperature valve rod 42 with second high temperature baffle 21 fixed connection, high temperature valve rod 42 runs through second low temperature baffle 23, second insulating layer 22 and second high temperature baffle 21, low temperature valve helping hand valve rod 41 sets up the outside at high temperature valve rod 42, low temperature helping hand valve rod 41 and high temperature valve rod 42 relatively fixed simultaneously, high temperature valve rod 42 and 3 threaded connection of slip locating lever, thereby realize drive assembly 4 and the direct relation of being connected of slip locating lever 3. The low-temperature boosting valve rod 41 can be additionally provided with a structure which is convenient for driving the movable baffle 2 and the driving component 4 to integrally move, so that the structure is combined with an automatic control system to realize the opening and closing of a control valve, and because the content of the part is not the main constituent part of the application, and meanwhile, for a person skilled in the art, some corresponding structures can be easily thought of, for example, a convex rod is additionally arranged on the side surface of the low-temperature boosting valve rod 41, the movable baffle 2 is driven by driving the convex rod to rotate, and the like, so that the description is not expanded herein.
When the valve is closed, the low-temperature valve assisting valve rod and the high-temperature valve rod 42 are pushed to rotate inwards along the sliding positioning rod 3, the movable baffle plate 2 is moved towards the direction of the high-temperature chamber until the movable baffle plate 2 and the fixed baffle plate 1 are completely attached to each other and are in seamless connection, and communication between the high-temperature chamber and the low-temperature chamber can be blocked.
When the valve is opened, the low-temperature valve power-assisted valve rod and the high-temperature valve rod 42 are pulled out along the sliding positioning rod 3 in an outward rotating mode, the movable baffle plate 2 moves towards the direction of the low-temperature chamber, the movable baffle plate 2 and the fixed baffle plate 1 are slowly separated until the movable baffle plate and the fixed baffle plate are completely separated, and fluid in the air chamber on one side can enter the air chamber on the other side. If the fluid flow is required to be controlled when the valve is opened, the distance between the movable baffle plate 2 and the fixed baffle plate 1 can be adjusted, and the smaller the distance is, the smaller the flow is.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.

Claims (9)

1. A high temperature resistant valve which is characterized in that: the high-temperature and low-temperature heat insulation valve comprises a fixed baffle (1) and a movable baffle (2), wherein the fixed baffle (1) divides the interior of the valve into a high-temperature chamber and a low-temperature chamber, the fixed baffle (1) comprises a first high-temperature baffle (11), a first heat insulation layer (12) and a first low-temperature baffle (13), the first high-temperature baffle (11) is close to the high-temperature chamber, the first low-temperature baffle (13) is close to the low-temperature chamber, the movable baffle (2) comprises a second high-temperature baffle (21), a second heat insulation layer (22) and a second low-temperature baffle (23), the second high-temperature baffle (21) is close to the high-temperature chamber, the second low-temperature baffle (23) is close to the low-temperature chamber, an opening which is matched with the movable baffle (2) in shape is formed in the fixed baffle (1), a sliding positioning rod (3) which spans the high-temperature chamber and the low-temperature chamber is arranged, the high-temperature chamber and the low-temperature chamber are separated by matching with the opening, a driving component (4) used for driving the movable baffle (2) to be matched with the opening is arranged on the movable baffle (2), and the driving component (4) is arranged on one side face, close to the low-temperature chamber, of the movable baffle (2).
2. The high temperature resistant valve of claim 1, wherein: the first high-temperature baffle (11) extends towards the opening middle part to form a first convex edge (111).
3. The high temperature resistant valve of claim 1, wherein: and a second convex edge (231) extends from the second low-temperature baffle plate (23) to the outer side of the movable baffle plate (2).
4. The high temperature resistant valve of claim 1, wherein: the thickness of the movable baffle (2) is the same as that of the fixed baffle (1).
5. The high temperature resistant valve of claim 4, wherein: the thickness of the second high-temperature baffle (21) is the same as that of the first high-temperature baffle (11), the thickness of the second low-temperature baffle (23) is the same as that of the second high-temperature baffle (21), and the thickness of the second heat insulation layer (22) is the same as that of the first heat insulation layer (12).
6. The high temperature resistant valve of any one of claims 1 to 5, wherein: the driving assembly (4) is in threaded connection with the sliding positioning rod (3), the movable baffle (2) is fixedly connected with the end portion of the driving assembly (4), the planar shape of the movable baffle (2) is circular, and the axial direction of the sliding positioning rod (3) is perpendicular to the fixed baffle (1).
7. The high temperature resistant valve of claim 1, wherein: the driving assembly (4) comprises a low-temperature valve boosting valve rod fixedly connected with a second low-temperature baffle plate (23) and a high-temperature valve rod (42) fixedly connected with a second high-temperature baffle plate (21), the high-temperature valve rod (42) penetrates through the second low-temperature baffle plate (23), a second heat insulation layer (22) and the second high-temperature baffle plate (21), and the low-temperature valve boosting valve rod is arranged on the outer side of the high-temperature valve rod (42).
8. The high temperature resistant valve of claim 1, wherein: the first high-temperature baffle (11) and the second high-temperature baffle (21) are made of high-temperature resistant materials.
9. The high temperature resistant valve of claim 1, wherein: the first heat insulation layer (12) and the second heat insulation layer (22) are filled with heat insulation materials with low heat conductivity or made in a vacuum mode.
CN201911142589.8A 2019-11-20 2019-11-20 High-temperature-resistant valve Active CN110878839B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911142589.8A CN110878839B (en) 2019-11-20 2019-11-20 High-temperature-resistant valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911142589.8A CN110878839B (en) 2019-11-20 2019-11-20 High-temperature-resistant valve

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CN110878839A CN110878839A (en) 2020-03-13
CN110878839B true CN110878839B (en) 2021-07-06

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CN115363104A (en) * 2022-08-01 2022-11-22 安徽省徽功夫生物科技有限责任公司 Continuous fixation equipment for tea processing

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KR101264032B1 (en) * 2011-10-06 2013-05-21 김미성 Vacuum Insulation Panel
CN204114472U (en) * 2014-08-27 2015-01-21 南京钢铁股份有限公司 A kind of air separation column tower plastic valve anti-race cold structure
CN204397834U (en) * 2014-12-31 2015-06-17 四川科新机电股份有限公司 The assembly tooling of a kind of hot gas conduit internals
CN205974391U (en) * 2016-06-29 2017-02-22 北京神雾环境能源科技集团股份有限公司 From oil shale pyrolysis of dust removal type and cracking system
CN106836522B (en) * 2017-03-01 2019-08-30 华中科技大学 A kind of self-regulation phase transformation Te Langbei wall
CN107345587A (en) * 2017-06-16 2017-11-14 锐驰恩科技（大连）有限公司 It is a kind of to open and close explosion-proof decompression device certainly
CN108825794A (en) * 2018-08-29 2018-11-16 江苏保丽洁环境科技股份有限公司 the waste gas outlet structure of adsorption box

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