CN114623254B - High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof - Google Patents
High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof Download PDFInfo
- Publication number
- CN114623254B CN114623254B CN202011458382.4A CN202011458382A CN114623254B CN 114623254 B CN114623254 B CN 114623254B CN 202011458382 A CN202011458382 A CN 202011458382A CN 114623254 B CN114623254 B CN 114623254B
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- valve core
- valve
- connecting shaft
- spring
- resistant
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Classifications
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/062—Construction of housing; Use of materials therefor of taps or cocks with conical plugs
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0242—Spindles and actuating means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/025—Particular coverings or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof, and belongs to the field of environmental pollution analysis and monitoring. The device structure is divided into a valve body, a valve core, a connecting shaft, a spring and a driving element. The contact surface of the valve body and the valve core is of a conical surface structure, the connecting shaft extrudes the contact surface of the valve core and the valve body through a spring, so that sealing is realized, and on-off or switching of the valve is realized through a driving element. The invention adopts a valve body linkage structure, and the valve body and the valve core adopt high-temperature-resistant and corrosion-resistant materials, so that the normal use of the valve body and the valve core in a high-temperature environment and under a corrosive medium condition can be ensured while the sealing is ensured.
Description
Technical Field
The invention belongs to the field of environmental pollution analysis and monitoring, and particularly relates to a high-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof.
Background
In the flue gas sampling process, the valve is in a high-temperature environment for a long time, corrosive media pass through, the common valve cannot be used under the condition, the driving unit cannot resist temperature, the valve body can deform or be corroded, the valve cannot be used, and replacement and maintenance are inconvenient.
Disclosure of Invention
In order to avoid the situation, the invention provides a novel valve body linkage structure, namely a high-temperature-resistant corrosion-resistant valve for flue gas sampling, which solves the problem that the valve is deformed at high temperature or corroded by a medium in the flue gas sampling process.
The invention provides a sampling valve for sampling analysis of target pollutants in a flue, in particular to a high-temperature-resistant corrosion-resistant valve for sampling analysis and monitoring of dioxin in flue gas and smoke.
The invention solves the technical problem of providing a high-temperature-resistant corrosion-resistant valve for flue gas sampling, which comprises a valve body, wherein the valve body consists of a pipe body and a valve core sleeve arranged along the radial direction of the pipe body, the valve core sleeve is of a hollow round platform structure, the pipe body is of a hollow round pipe structure, and the intersection of the pipe body and the valve core sleeve is communicated; the valve core sleeve is internally provided with a valve core with a solid structure which is matched with the valve core sleeve for use, the valve core is provided with a through hole, and the valve core can rotate around a central shaft of the valve core sleeve to realize the communication or non-communication between the through hole and the pipe body; the surface with the largest radius of the valve core is a bottom surface, the bottom surface of the valve core is connected with one end of a connecting shaft, and the other end of the connecting shaft is connected with a driving element; one end of the tube body is connected with the sampling gun, the other end of the tube body is connected with one end of the enrichment tube (7), and the other end of the enrichment tube is connected with the sampler.
Further, a spring is sleeved on the outer side surface of the connecting shaft, a bump is arranged at one end, close to the valve core, of the outer side of the connecting shaft, one end of the spring is connected with the driving element, and the other end of the spring is connected with the bump.
Further, the connection mode of the connecting shaft and the valve core and the connection mode of the connecting shaft and the driving element comprises groove structure connection, bolt structure connection or compression connection.
Further, the valve body and the driving element are relatively fixed, the driving element presses the spring towards the valve body side, so that the spring is in contact with the lug to be stressed, and the lug further applies force to the valve core, so that the valve core moves towards the direction of reducing the radius of the valve core sleeve, and the valve core sleeve are sealed; when the valve core and the valve core sleeve are kept in a sealing state, the valve core can rotate around the center shaft of the valve core to realize the communication or non-communication between the through hole and the pipe body.
Further, the valve body and the valve core are made of titanium alloy, glass, polytetrafluoroethylene or polyether-ether-ketone, the connecting shaft is made of titanium alloy or stainless steel, and the driving element comprises a swinging cylinder, a stepping motor or a servo motor.
Further, the spring is a compression spring.
Further, an air pump is arranged in the sampler.
The invention also provides application of the high-temperature-resistant corrosion-resistant valve for flue gas sampling in flue gas sampling.
The valve body and the valve core are positioned in a high temperature area, and corrosive high temperature smoke is adopted as a medium in the valve body and the valve core, and high temperature and corrosion resistant materials such as titanium alloy, glass, polytetrafluoroethylene, polyether ether ketone and the like are adopted; the connecting shaft is made of high-temperature resistant and high-strength materials such as titanium alloy, stainless steel and the like. The driving element is positioned in a non-high temperature area and is not high-temperature resistant, and is a device capable of changing the angle of the central shaft, such as a swinging cylinder, a stepping motor, a servo motor and the like.
The structure formed by the valve body and the valve core can be a two-way or more than two-way multichannel structure; the connection of the connecting shaft, the valve core and the driving element is of a structure which can not generate relative rotation, and can be of a groove structure, a bolt structure or a compression structure and the like.
The invention relates to a high-temperature-resistant corrosion-resistant valve for flue gas sampling, which is used for: the valve body, the valve core and the sampling gun are arranged in a high-temperature area of the flue, other parts are arranged in a non-high-temperature area outside the flue, and the lug on the connecting shaft can partially enter the flue and the spring is required to be positioned outside the flue. Starting a driving element and an air pump in the sampler, and allowing corrosive high-temperature flue gas to enter a valve body through a sampling gun and then be discharged into an enrichment pipe through the valve body; the valve core is connected with the driving element through the connecting shaft, is in sealing connection with the valve body under the action of the spring, and realizes the on-off and switching of the valve under the rotation action of the driving element.
The beneficial effects of the invention are as follows: compared with the common valve, the valve adopts a valve body linkage structure, and the valve body and the valve core adopt high-temperature-resistant and corrosion-resistant materials, so that the normal use under the conditions of high-temperature environment and corrosive medium can be ensured while the sealing is ensured.
Drawings
FIG. 1 is a schematic diagram of the main structure of a high temperature and corrosion resistant valve for flue gas sampling.
Fig. 2 is a schematic diagram of the smoke sampling operation of the high temperature and corrosion resistant valve according to the present invention.
In the figure, 1 part of valve body, 1-1 part of pipe body, 1-2 parts of valve core sleeve, 2 parts of valve core, 3 parts of connecting shaft, 3-1 parts of lug, 4 parts of spring, 5 parts of driving element, 6 parts of sampling gun, 7 parts of enrichment pipe and 8 parts of sampler.
Detailed Description
The following non-limiting examples will enable those of ordinary skill in the art to more fully understand the invention and are not intended to limit the invention in any way.
Example 1
1-2, a high temperature resistant corrosion resistant valve for flue gas sampling comprises a valve body 1, wherein the valve body 1 consists of a pipe body 1-1 and a valve core sleeve 1-2 arranged along the radial direction of the pipe body 1-1, the valve core sleeve 1-2 is of a hollow round platform structure, the pipe body 1-1 is of a hollow round pipe structure, and the intersection of the pipe body 1-1 and the valve core sleeve 1-2 is communicated; the valve core sleeve 1-2 is internally provided with a valve core 2 with a solid structure matched with the valve core sleeve 1-2, the valve core 2 is provided with a through hole, and the valve core 2 can rotate around a central shaft of the valve core sleeve 1-2 to realize the communication or non-communication between the through hole and the pipe body 1-1; the surface with the largest radius of the valve core 2 is a bottom surface, the bottom surface of the valve core 2 is connected with one end of the connecting shaft 3, and the other end of the connecting shaft 3 is connected with the driving element 5; one end of the tube body 1-1 is connected with the sampling gun 6, the other end of the tube body 1-1 is connected with one end of the enrichment tube 7, and the other end of the enrichment tube 7 is connected with the sampler 8. The outer side surface of the connecting shaft 3 is sleeved with a spring 4, one end, adjacent to the valve core 2, of the outer side of the connecting shaft 3 is provided with a protruding block 3-1, one end of the spring 4 is connected with the driving element 5, and the other end of the spring is connected with the protruding block 3-1. The connection mode of the connecting shaft 3 and the valve core 2 and the connection mode of the connecting shaft 3 and the driving element 5 comprises groove structure connection, bolt structure connection or compression connection. The valve body 1 and the driving element 5 are relatively fixed in position, the driving element 5 presses the spring 4 towards the valve body 1 in a side pressing way, so that the spring 4 is in contact with the lug 3-1 to bear force, and the lug 3-1 is used for applying force to the valve core 2, so that the valve core 2 moves towards the direction of reducing the radius of the valve core sleeve 1-2, and the valve core 2 and the valve core sleeve 1-2 are sealed; when the valve core 2 and the valve core sleeve 1-2 keep a sealing state, the valve core 2 can rotate around the central axis of the valve core 2 to realize the communication or non-communication between the through hole and the pipe body 1-1. The valve body 1 and the valve core 2 are made of titanium alloy, glass, polytetrafluoroethylene or polyether-ether-ketone, the connecting shaft 3 is made of titanium alloy or stainless steel, and the driving element 5 comprises a swinging cylinder, a stepping motor or a servo motor. The spring 4 is a compression spring. The sampler 8 is provided with an air pump.
Example 2
The invention relates to a high-temperature-resistant corrosion-resistant valve for flue gas sampling, which is used for: the valve body, the valve core and the sampling gun are arranged in a high-temperature area of the flue, other parts are arranged in a non-high-temperature area outside the flue, and the lug on the connecting shaft can partially enter the flue and the spring is required to be positioned outside the flue. Starting a driving element and an air pump in the sampler, and allowing corrosive high-temperature flue gas to enter a valve body through a sampling gun and then be discharged into an enrichment pipe through the valve body; the valve core is connected with the driving element through the connecting shaft, is in sealing connection with the valve body under the action of the spring, and realizes the on-off and switching of the valve under the rotation action of the driving element.
Claims (4)
1. The high-temperature-resistant corrosion-resistant valve for flue gas sampling is characterized by comprising a valve body (1), wherein the valve body (1) consists of a pipe body (1-1) and a valve core sleeve (1-2) radially arranged along the pipe body (1-1), the valve core sleeve (1-2) is of a hollow round platform structure, the pipe body (1-1) is of a hollow round pipe structure, and the intersection of the pipe body (1-1) and the valve core sleeve (1-2) is communicated; the valve core sleeve (1-2) is internally provided with a valve core (2) with a solid structure which is matched with the valve core sleeve (1-2), the valve core (2) is provided with a through hole, and the valve core (2) can rotate around a central shaft of the valve core sleeve (1-2) to realize the communication or non-communication between the through hole and the pipe body (1-1); the surface with the largest radius of the valve core (2) is a bottom surface, the bottom surface of the valve core (2) is connected with one end of the connecting shaft (3), and the other end of the connecting shaft (3) is connected with the driving element (5); one end of the tube body (1-1) is connected with the sampling gun (6), the other end of the tube body (1-1) is connected with one end of the enrichment tube (7), and the other end of the enrichment tube (7) is connected with the sampler (8);
the outer side surface of the connecting shaft (3) is sleeved with a spring (4), one end, adjacent to the valve core (2), of the outer side of the connecting shaft (3) is provided with a bump (3-1), one end of the spring (4) is connected with the driving element (5), and the other end of the spring is connected with the bump (3-1);
the connecting mode of the connecting shaft (3) and the valve core (2) and the connecting mode of the connecting shaft (3) and the driving element (5) comprises groove structure connection, bolt structure connection or compression connection;
the valve body (1) and the driving element (5) are relatively fixed in position, the driving element (5) presses the spring (4) towards the valve body (1) in a lateral pressure mode, the spring (4) is contacted with the lug (3-1) to bear force, the lug (3-1) further applies force to the valve core (2), and therefore the valve core (2) moves towards the direction of reducing the radius of the valve core sleeve (1-2), and the valve core (2) is sealed with the valve core sleeve (1-2); when the valve core (2) and the valve core sleeve (1-2) are kept in a sealing state, the valve core (2) can rotate around a central shaft of the valve core to realize the communication or non-communication between the through hole and the pipe body (1-1);
the valve body (1) and the valve core (2) are made of titanium alloy, glass, polytetrafluoroethylene or polyether-ether-ketone, the connecting shaft (3) is made of titanium alloy or stainless steel, and the driving element (5) comprises a swinging cylinder, a stepping motor or a servo motor.
2. A high temperature and corrosion resistant valve for flue gas sampling according to claim 1, wherein the spring (4) is a compression spring.
3. A high temperature and corrosion resistant valve for flue gas sampling according to claim 1, characterized in that the sampler (8) is provided with a suction pump.
4. Use of a high temperature and corrosion resistant valve for flue gas sampling according to any of claims 1 to 3 for flue gas sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011458382.4A CN114623254B (en) | 2020-12-10 | 2020-12-10 | High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011458382.4A CN114623254B (en) | 2020-12-10 | 2020-12-10 | High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114623254A CN114623254A (en) | 2022-06-14 |
| CN114623254B true CN114623254B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011458382.4A Active CN114623254B (en) | 2020-12-10 | 2020-12-10 | High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof |
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| CN2577181Y (en) * | 2002-09-30 | 2003-10-01 | 陈志华 | Gas-quantity distribution valve of gas water-heater |
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| CN102878314A (en) * | 2011-07-15 | 2013-01-16 | 珀挺机械工业(厦门)有限公司 | Plug valve |
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| CN205841840U (en) * | 2016-07-27 | 2016-12-28 | 辰业环保科技（江苏）有限公司 | A kind of incinerator gas control valve |
| CN206017836U (en) * | 2016-08-15 | 2017-03-15 | 郑州四维特种材料有限责任公司 | A kind of plug valve |
| CN106872222A (en) * | 2015-12-10 | 2017-06-20 | 中国科学院大连化学物理研究所 | The capturing device and application method of quick despatch in a kind of flue gas sampling |
| CN208057998U (en) * | 2018-03-02 | 2018-11-06 | 德科隆（无锡）流体控制有限公司 | A kind of high temperature metal sealing plug valve |
| CN109373050A (en) * | 2018-12-25 | 2019-02-22 | 浙江奥新仪表有限公司 | A kind of corrosion-resisting high-performance flow controller |
| CN209229047U (en) * | 2018-12-14 | 2019-08-09 | 中山市金艺金属制品有限公司 | Gas furnace plug valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007014282A1 (en) * | 2007-03-19 | 2008-10-02 | Südmo Holding GmbH | Valve for separating product media in pipelines of a product-carrying system |
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2020
- 2020-12-10 CN CN202011458382.4A patent/CN114623254B/en active Active
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| CN85203857U (en) * | 1985-09-18 | 1986-05-28 | 核工业部第七研究设计院 | Corrosion-proof solenoid valve |
| JPS6338773A (en) * | 1986-07-31 | 1988-02-19 | Nippon Fine Ceramics Kk | Ceramic valve capable of sampling |
| WO2003029709A1 (en) * | 2001-09-30 | 2003-04-10 | Fubao Guo | Control valve |
| CN2555505Y (en) * | 2002-08-02 | 2003-06-11 | 张学平 | Integrated fume gas analyzer |
| CN2577181Y (en) * | 2002-09-30 | 2003-10-01 | 陈志华 | Gas-quantity distribution valve of gas water-heater |
| CN102878314A (en) * | 2011-07-15 | 2013-01-16 | 珀挺机械工业(厦门)有限公司 | Plug valve |
| CN202351099U (en) * | 2011-10-17 | 2012-07-25 | 中国石油化工股份有限公司 | Sampling device for sulfur trioxide |
| CN203224390U (en) * | 2013-04-28 | 2013-10-02 | 上海宝钢工业技术服务有限公司 | Ultrahigh-temperature flue gas sampling device |
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| CN206017836U (en) * | 2016-08-15 | 2017-03-15 | 郑州四维特种材料有限责任公司 | A kind of plug valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114623254A (en) | 2022-06-14 |
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