CN102686922A - Gate valve - Google Patents
Gate valve Download PDFInfo
- Publication number
- CN102686922A CN102686922A CN2010800447354A CN201080044735A CN102686922A CN 102686922 A CN102686922 A CN 102686922A CN 2010800447354 A CN2010800447354 A CN 2010800447354A CN 201080044735 A CN201080044735 A CN 201080044735A CN 102686922 A CN102686922 A CN 102686922A
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- valve body
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- sealing material
- valve
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- 239000003566 sealing material Substances 0.000 claims description 181
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000004087 circulation Effects 0.000 claims description 14
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 10
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- 229910052845 zircon Inorganic materials 0.000 claims description 6
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 239000000395 magnesium oxide Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 3
- 239000000565 sealant Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 259
- 239000000463 material Substances 0.000 description 20
- 239000002245 particle Substances 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 238000007789 sealing Methods 0.000 description 15
- 229910052799 carbon Inorganic materials 0.000 description 13
- 239000012071 phase Substances 0.000 description 10
- 238000004939 coking Methods 0.000 description 9
- 239000003570 air Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000006185 dispersion Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005245 sintering Methods 0.000 description 6
- 238000001149 thermolysis Methods 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 4
- 238000013005 condensation curing Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- -1 self thermolysis Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000013590 bulk material Substances 0.000 description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000013517 stratification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 206010018265 Gigantism Diseases 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910001026 inconel Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000029052 metamorphosis Effects 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 238000009491 slugging Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000011269 tar Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
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
- 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
-
- 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
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/08—Arrangements for cutting-off not used
- F16K13/10—Arrangements for cutting-off not used by means of liquid or granular medium
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B27/00—Arrangements for withdrawal of the distillation gases
- C10B27/06—Conduit details, e.g. valves
-
- 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
- F16K1/42—Valve seats
-
- 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
- F16K25/00—Details relating to contact between valve members and seats
- F16K25/005—Particular materials for seats or closure elements
-
- 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
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Sliding Valves (AREA)
- Sealing Material Composition (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Disclosed is a gate valve for the inside of a high-temperature furnace which is provided with: a granular sealant which is fluid between a normal temperature and 900 C; a valve casing wherein the sealant is stored at the bottom; a first duct which is connected with the valve casing and through which a gas flows from the outside toward the inside of the valve casing; a second duct which is connected with the valve casing and through which the gas flows from the inside toward the outside of the valve casing; and a valve body which lowers down to a valve-lowering position where the valve body is at least partially buried in the sealant and stops the flow of the gas from the first duct toward the second duct, and rises to a valve-rising position where the valve body is disposed above the surface of the sealant and allows the flow of the gas from the first duct toward the second duct.
Description
Technical field
The present invention relates to adopt employed separating valve in the device such as coke oven of all gases (particularly high-temperature gas).
The application based on October 09th, 2009 spy in japanese publication be willing to advocate preference for 2009-235040 number, its content is quoted in this specification.
Background technique
In the coke oven that system iron is used, coke-stove gas (the Coke Oven Gas that produces when utilizing the set pipe arrangement to coal carbonization.Below be called COG) reclaim and the use that acts as a fuel.At this moment, because the COG that is produced perhaps reaches the high temperature about 900 ℃ about 850 ℃, so thereby the sensible heat that on principle, can reclaim gas is realized energy-conservation.But, contain tar among the COG as higher boiling gas, be reduced to below 700 ℃ if having the temperature of COG, then the character of condensing of the tar among the COG.The tar that temporarily condenses changes in the back character of condensing, and does not also allow evaporable material under most situation even be changed to heat once more.In addition, COG has also that the carbon that contains hydrocarbons such as methane decomposes and (this phenomenon is called coking (coking)) character of separating out as the carbon (coal) of solid under the high temperature more than 700 ℃.Because the yet mutual strong bonded of this solid carbon of temporarily separating out is not so even temperature is reduced, can easily become hydrocarbon yet.
In the prior art, suppose when the COG that makes high temperature circulates in pipe-line system equipment (pipeline, valve, gas fan etc.), can in pipe-line system equipment, adhere to such tar, solid carbon in a large number.Thus, the pipe-line system operation of equipment becomes difficult.Therefore, in the past at COG that coke oven produced when the asending pipe of coke oven is discharged from, carry out water-cooled immediately and make it become normal temperature.At this moment,, and be mixed in the cooling water and be removed, so have only low-boiling point gas (be referred to as and do COG) among the COG of normal temperature to be used as fuel and reclaim because tar condenses and from COG, separate.Do COG owing to there is not the problem in the special operation, so applicable general industrial is used pipe-line system equipment, the air-flow of pilot line freely.
On the other hand, in above-mentioned asending pipe, do not have to contact owing to be removed the gas (being called wet COG) of tar, so can't avoid coking to the asending pipe inner face with the asending pipe inner face.In addition, the temperature of COG reduces in the operation of a series of coal carbonization operation sometimes, and at this moment, the coagulant of the tar that contains among the COG also can be attached to the asending pipe internal face, forms firm fixed bed.If the state to be formed with these attachments continues operation, then the pipeline of asending pipe can be blocked.Therefore, in the pipeline of asending pipe, need every at a distance between certain short-term, carry out operation that the carbon that is attached to the asending pipe inner face is removed for example every day.The tar that in asending pipe, produces like this adheres to, the problem of coking is not limited to asending pipe, but makes the common problem in the pipe-line system of wet COG circulation.
For example, shown in the patent documentation 1, between asending pipe and dry main (dry main), be provided with in the method for flow rate regulating valve, from the temperature of the COG of flow rate regulating valve circulation based on the spray water step-down that disperses.In addition, owing to only can't cut off the circulation of gas through flow rate regulating valve, so water-sealing valve need be set in addition.The blocked valve that a kind of wet COG uses is disclosed in the patent documentation 2; But in this blocked valve; Because valve seat all continues to contact with wet COG with valve body, can't avoid their a large amount of coking that the surface produced, the condensation cure of tar, so need frequent cleaning work.In addition, through the air pipe arrangement is set in asending pipe, utilize the COG air-flow of the high temperature in the asending pipe that the air that in air duct, circulates is heated in the patent documentation 3, realized the heat extraction recovery.But under the situation of this device, if the amount of cooling water of COG is big, then COG can condense, be solidificated in air pipe arrangement surface immediately as tar, thus attached to the surface of air pipe arrangement.Therefore, not only hinder heat conduction, and generation makes the asending pipe blocking problem.And also existence can only be reclaimed this problem of few part of the sensible heat of COG.Like this, under the situation of the sensible heat of the wet COG that utilizes high temperature, compare with reclaiming heat extraction, the useful chemical reaction (gas reforming) of the COG that promotion can only be carried out in high temperature condition is more favourable.
Because pipeline is opened and closed, be provided with asending pipe top cover and these two valves of dry main lid usually.The asending pipe top cover makes the residual gas in the coke oven be diffused in the atmosphere and burning after destructive distillation finishes, between asending pipe top cover and the asending pipe when making coal carbonization by water seal.Perhaps, separate out because of attachment for fear of the asending pipe top cover and to be fixed in asending pipe, adopted between asending pipe and lid and the slit has been set in advance, the structure that COG is not sealed fully.In addition, dry main lid is the lid of pipeline that asending pipe is connected with dry main, but its under the situation of closing pipe line also by water seal.Like this, as the structure of the valve that can contact with wet COG in the prior art, adopted the structure that is maintained low temperature or does not seal fully.
Technical paper formerly
Patent documentation
Patent documentation 1: TOHKEMY 2004-107466 communique
Patent documentation 2: the real public clear 62-39077 communique of Japan
Patent documentation 3: Japan opens clear 58-7847 communique in fact
Non-patent literature
Patent Document 1: Japanese Powder Industrial Technology Association Code: Mobile
Hana nn boots black cloth sleeve, fold Wind Museum, 1999
Summary of the invention
The problem that invention will solve
In order under the state of wet COG, to utilize the sensible heat of COG, the circulation of the wet COG of the condition of high temperature in the pipe-line system of COG is controlled and can be opened and closed the valve of pipeline and must owe.But the valve of existing technology (lid) exists and can't seal wet COG fully, and causing wet COG is low temperature, problems such as the tar that the frequent end of operation (coal carbonization) is removed be fixed on the valve inner face, solid carbon.
Given this, the present invention proposes in order to address the above problem a little, and its purpose is, provide a kind of can make between the flow channel tube gas, especially from about the normal temperature to 850 ℃ or about 900 ℃ wet COG long-term between the separating valve of circulation.
The means that are used to deal with problems
The present invention realizes corresponding purpose and has adopted following scheme in order to solve above-mentioned problem.
That is, the separating valve that relates to of (1) mode of the present invention possesses: the granular sealing material that can in the temperature range till normal temperature to 900 ℃, flow; Stockpile the clack box of above-mentioned sealing material in the bottom; The 1st flow channel tube is connected with above-mentioned clack box, from the outside of above-mentioned clack box towards inner inflow gas; The 2nd flow channel tube is connected with above-mentioned clack box, from the inside of above-mentioned clack box towards outside eluting gas; Valve body; Dropping at least a portion buries in above-mentioned sealing material; To the valve body lowering position that hinders towards the gas flow of above-mentioned the 2nd flow channel tube from above-mentioned the 1st flow channel tube; And rise to the top on the surface that is configured in above-mentioned sealing material, from the valve body lifting position of above-mentioned the 1st flow channel tube towards above-mentioned the 2nd flow channel tube inflow gas; With the valve body lowering or hoisting gear, above-mentioned valve body is gone up and down between above-mentioned valve body lowering position and above-mentioned valve body lifting position.
(2) in the separating valve that above-mentioned (1) is put down in writing; Also possess fluidized bed gas and supply with switching mechanism, this fluidized bed gas is supplied with switching mechanism and is had the fluidized bed gas flow layer gas pipe arrangement that to internal feed above-mentioned sealing material is flowed from the outside of above-mentioned clack box; Above-mentioned fluidized bed gas is supplied with switching mechanism above-mentioned fluidized bed gas flow is switched; With the above-mentioned valve body of box lunch between above-mentioned valve body lowering position and above-mentioned valve body lifting position, move move during in; Through above-mentioned fluidized bed gas pipe arrangement to the above-mentioned fluidized bed gas of the internal feed of above-mentioned clack box; During beyond during above-mentioned move, not to the above-mentioned fluidized bed gas of the internal feed of above-mentioned clack box.
(3) separating valve that relates to of a mode of the present invention possesses: clack box, possess the fluidized bed that granular sealing material is flowed at least, and the sealing material is with low uncertainty in the temperature range rerum natura from the high temperature of normal temperature to 900 ℃; High-temperature gas flows out pipe, above the surface of above-mentioned fluidized bed, is connected with above-mentioned clack box; High-temperature gas flows into pipe, according at least the open state under shed of valve be configured in above-mentioned fluidized bed the surface above mode, be connected with above-mentioned clack box; Valve body; Under the closed condition of separating valve; Be configured in the part of valve body at least and bury position, be the valve body lowering position, flow into the circulation that pipe and above-mentioned high-temperature gas flow out the high-temperature gas between managing so that utilize above-mentioned sealing material to hinder above-mentioned high-temperature gas in above-mentioned sealing material, and; Under the open state of separating valve, the position of the top on the whole surfaces that are present in above-mentioned sealing material that are configured in valve body, be the valve body lifting position; The valve body lowering or hoisting gear makes between above-mentioned valve body lowering position of being configured in of above-mentioned valve body and the above-mentioned valve body lifting position and changes; Fluidized bed gas pipe arrangement is connected with the bottom or the below of above-mentioned sealing material, is used for supplying with the fluidized bed gas that makes the carbide burning that is blended into above-mentioned sealing material to above-mentioned clack box; Switch to the fluidized bed gas switching mechanism of supply condition or halted state with the gas that will make the burning of above-mentioned carbide.
(4) in above-mentioned (1) separating valve that perhaps (2) are put down in writing; Preferred above-mentioned valve body is separated into the 1st space of the inside that comprises above-mentioned valve body and the 2nd space beyond this first space with the volume inside of above-mentioned clack box when dropping to above-mentioned valve body lowering position.
(5) in above-mentioned (1) separating valve that perhaps (2) are put down in writing; Preferably when above-mentioned valve body drops to above-mentioned valve body lowering position, the above-mentioned sealing material of being extruded by above-mentioned valve body is divided into the spatial of above-mentioned clack box periphery in the 1st space and the 2nd space that comprises the inside of above-mentioned the 2nd flow channel tube of the inside that comprises above-mentioned the 1st flow channel tube.
(6) in the separating valve that above-mentioned (1)～(5) are put down in writing, preferably the upper surface at above-mentioned sealing material loads the block that dispersing of sealing material suppressed.
(7) in the separating valve that above-mentioned (2)～(5) are put down in writing, preferred above-mentioned fluidized bed gas is the oxidizing gas that contains aerobic.
(8) in the separating valve that above-mentioned (1)～(5) are put down in writing, preferred above-mentioned sealing material is made up of more than a kind or 2 kinds what from aluminium oxide, magnesia, zircon, stabilizing zirconia, titanium oxide, silicon nitride, silicon carbide, select.
The invention effect
The separating valve of being put down in writing according to above-mentioned (1), from about normal temperature to 850 ℃ or the temperature range of about 900 ℃ the high temperature granular sealing material that can flow stockpiled bottom at clack box.When separating valve was in open state, valve body rose to the valve body lifting position, between the 1st flow channel tube and the 2nd flow channel tube, flow through gas.In addition, when separating valve was in closed condition, valve body dropped to the valve body lowering position, and the gas flow between the 1st flow channel tube and the 2nd flow channel tube is hindered.At this moment, even in sealing material, generate tar, solid carbon, because sealing material can flow, so flow through sealing material, tar, solid carbon also can be distributed in the sealing material.Therefore owing to need in clack box, not remove tar, solid carbon, so can make gas (the particularly wet COG from about the normal temperature to 850 ℃) in pipeline long-term between circulation.
In addition; Even if through adopting about 850 ℃ perhaps about 900 ℃ high temperature; Also not undergoing phase transition, thermolysis, sintering, or the bulk material of the big variation of physical property such as metamorphosis mutually as the sealing material of separating valve, can guarantee the sealing of valve in wider temperature range.Relative therewith, at the encapsulating method of existing technology, for example under the situation of water-sealing valve, because because of phase change at high temperature can't be maintained liquid phase with water, so can't use water-sealing valve.In addition, even using under the situation of particle as sealing material of solid, when using when the temperature range from normal temperature to 850 ℃ for example undergoes phase transition the particle of material of attitude, because the inevitable density sudden turn of events makes particle slowly pulverize during undergoing phase transition.As a result, existence can't be maintained the size distribution of particle the problem of best steady state value, and the particle that undergoes phase transition the material of attitude is not suitable for as sealing material.
And, in separating valve, generally between the parts of separating valve, make up and use material different according to needed function.When such separating valve when wider temperature range is used, can produce the thermal expansion difference between above-mentioned parts.Thus, the contact between above-mentioned parts for example in the contacting between valve seat and the valve body, is difficult to the wider temperature range that is entrenched in each other in the machining is maintained same state.In addition, when under the high temperature 850 ℃ or about 900 ℃ during the use valve, owing to the situation that can't avoid material to be out of shape, so even if operating temperature is constant, what remain unchanged between also being difficult to for a long time is chimeric each other because of chronicity creep (creep).The separating valve of existing technology has through valve body is anchored on the structure that valve seat carries out the sealing of working fluid.If mutual chimeric the changing of valve then the slit can occur between valve body and the valve seat, cause sealing not exclusively.And under opposite situation, the contact force between valve body and the valve seat is excessive, causes that valve body can't move this problem.On the other hand; In the separating valve of a mode of the present invention; Because through valve body is buried in layer the sealing of the higher sealing material of original mobility (the for example degree of depth the above 1m of 30mm below), so need not consider mutual chimericly just can avoid above-mentioned problem.
General owing to wet COG contacts with sealing material, so sealing material is understood coking, condensation cure tar.But, owing to used more a large amount of granular sealing materials, thus can coking, condensation cure tar, so be difficult to sealing is caused harmful effect.That is, in the separating valve of a mode of the present invention, owing to make the sealing material flowing and it is stirred, so even produced under the situation of coking in the part of the sealing material on top layer, separating out carbon also can be decentralized to layer integral body rapidly.Thus, can reduce the sealing of sealing material, the influence of mobile variation.In addition, in the separating valve of a mode of the present invention, owing to, can obtain the effect that sealing material grinds valve body, so have the effect that the attachment of valve body surface is removed through valve body is buried in sealing material continually.
Under the situation of using granular sealing material, the air-flow that can not as fluid-tight, will in the layer of sealing material, circulate is blocked fully.But, improve aeration resistance through the layer (the for example degree of depth below the above 1m of 30mm) that thicker (dark) sealing material is set, can this discharge value be reduced to the degree that can ignore, thereby can carry out substantial gas seal.Therefore; The separating valve of being put down in writing like above-mentioned (1); Through being buried in sealing material, valve body carries out under the situation based on the gas seal of sealed material layer; Valve body is buried in sealing material deeply, and for example the surface from sealing material buries to the position below the above 1m of degree of depth 10mm.
General for the valve body that sectional area is bigger is inserted into static sealed material layer deeply, need the very big thrust and the high rigidity of device.Therefore, because the device gigantism, and the contact stress of sealing material and valve body also becomes greatly, so there are the problems such as abrasion of easy promotion valve body.On the other hand, in the separating valve that above-mentioned (1) is put down in writing, when valve body is moved in sealing material, through making the sealing material flowing in the clack box, the resistance in the time of can significantly reducing valve body and in sealing material, move.Thus, can avoid above-mentioned problem.
And under the situation of the separating valve of being put down in writing in above-mentioned (1), the valve body lowering or hoisting gear descends valve body, and at least a portion of valve body buries in sealing material, and the gas flow between the 1st flow channel tube and the 2nd flow channel tube is hindered.In addition, the valve body lowering or hoisting gear rises valve body, between the 1st flow channel tube and the 2nd flow channel tube, flows through gas.Like this, through possessing the valve body lowering or hoisting gear, valve body is gone up and down easily and reliably between valve body lowering position and valve body lifting position.
Under the situation of the separating valve of being put down in writing in above-mentioned (2), supply with switching mechanism according to moving of valve body by flowing gas and in clack box, supply with fluidized bed gas through fluidized bed gas pipe arrangement.Like this, in clack box, supply with fluidized bed gas as required, thereby can make sealing material become fluidized bed efficiently.
Under the situation of the separating valve of being put down in writing in above-mentioned (4); Because when valve body drops to the valve body lowering position; The inside of clack box is separated into the 1st space and the 2nd space that comprises the inside of clack box of the inside that comprises valve body by valve body, so the circulation of the gas between the 1st flow channel tube and the 2nd flow channel tube is hindered.Thus, can suppress valve body etc. by gas gas componants such as (for example) wet COG pollute, corrosion.
In addition; Under the situation of the separating valve of being put down in writing in above-mentioned (5); Because when valve body drops to the valve body lowering position; The space of clack box periphery is separated into the 1st space and the 2nd space that comprises the inside of the 2nd flow channel tube of the inside that comprises the 1st flow channel tube by the sealing material of being extruded by valve body, so the circulation of the gas between the 1st flow channel tube and the 2nd flow channel tube is hindered.Thus, can suppress valve body etc. by gas gas componants such as (for example) wet COG pollute, corrosion.
Description of drawings
Fig. 1 is the schematic representation of the state after the separating valve of the 1st mode of execution of the present invention is opened in expression.
Fig. 2 is the schematic representation of expression with this separating valve closing state.
Fig. 3 is the schematic representation of the state after the separating valve of the 2nd mode of execution of the present invention is opened in expression.
Fig. 4 is the schematic representation of expression with this separating valve closing state.
Fig. 5 is the schematic representation of the state after the separating valve of the 3rd mode of execution of the present invention is opened in expression.
Fig. 6 is the schematic representation of expression with this separating valve closing state.
Fig. 7 is with the schematic representation of valve opened state in the 5th mode of execution of the present invention.
Fig. 8 is with the schematic representation of valve closing state in the 5th mode of execution of the present invention.
Fig. 9 is the schematic representation of the device construction of expression other mode of executions of the present invention.
Embodiment
With reference to the accompanying drawings, preferred each mode of execution of the present invention is described in detail.In this specification and accompanying drawing,, omit the explanation of repetition through giving same reference character to the constituting component that has same function formation in fact.
(the 1st mode of execution)
The open state of having represented separating valve 100 among Fig. 1 has been represented the closed condition of separating valve 100 among Fig. 2.In addition, arrow F shown in Figure 1 representes the mobile direction of working gas (gas componants such as COG for example wet).
The separating valve of explaining in this mode of execution 100 is to use gas isolation valve in the High Temperature Furnaces that in High Temperature Furnaces, uses.Possesses with gas isolation valve 100 in this High Temperature Furnaces: can be from the high temperature of normal temperature to 850 ℃ or about 900 ℃ the mobile granular sealing material 5 of temperature range; 1A stockpiles the clack box 1 of sealing material 5 in the bottom; Be connected with clack box 1, the high-temperature gas that flows into the working gas (gas) of high temperature flows into pipe (the 1st flow channel tube) 3; Be connected with clack box 1, the high-temperature gas that flows out the working gas of high temperature flows out pipe (the 2nd flow channel tube) 4; The valve body 2 that moves along the vertical direction.Below, sometimes high-temperature gas is flowed into pipe 3 and abbreviate " intake channel 3 " as, high-temperature gas is flowed out pipe 4 abbreviate " outlet pipe 4 " as.
High-temperature gas is flowed into pipe 3, and when the open state of separating valve 100, opening portion 3A is configured to more lean on the top than the surperficial 5A of sealing material 5 at least, and the inside 1B of clack box 1 is connected with outside 1C.In addition, particularly, the high-temperature gas inflow pipe 3 bottom 1A from clack box 1 pass sealing material 5 and extend to the inside of clack box 1 1B.
High-temperature gas flows out pipe 4 and is arranged on the side 1D that leans on the clack box 1 of top than the surperficial 5A of sealing material 5, and the inside 1B of clack box 1 is connected with outside 1C.
In addition, valve body 2 drops at least a portion and buries in sealing material 5 when the closed condition of separating valve shown in Figure 2 100, to the mobile valve body lowering position that hinders of the working gas of the high temperature between intake channel 3 and the outlet pipe 4.In addition, valve body 2 rises to valve body 2 and is configured in than the surperficial 5A of sealing material 5 and more leans on the top when the open state of separating valve shown in Figure 1 100, working gas mobile valve body lifting position between intake channel 3 and outlet pipe 4.In addition, the inside 2A of valve body 2 is the cavity, and when separating valve 100 cut out, intake channel 3 was inserted into the inside 2A of valve body 2.
(structure of separating valve)
As shown in Figure 1, when separating valve 100 was opened, the working gas of high temperature flowed into pipe 3 from high-temperature gas and flow into clack box 1, flowed out pipe 4 outflows from high-temperature gas.The position of valve body 2 at this moment is called the valve body lifting position.As shown in Figure 2; When separating valve 100 cuts out; The space of the inside 1B of clack box 1 is buried in the valve body 2 of sealing material 5 by lower end 2B and is separated into the 1st space (volume inside that comprises valve body 2) 19 of intake channel 3 sides and the 2nd space 20 (comprising the space in the clack box 1) of outlet pipe 4 sides, is blocked from the mobile of working gas of intake channel 3 to the high temperature of outlet pipe 4.The position of valve body 2 at this moment is called the valve body lowering position.Here, the 1st space 19 is formed by the inwall of valve body 2, the outer wall of intake channel 3 and the surperficial 5A of sealing material 5, and the 2nd space 20 is formed by the inwall of clack box 1, the outer wall of valve body 2 and the surperficial 5A of sealing material 5.
The working gas of trace can be through slit (inside) circulation of sealing material 5.But, in the bury degree of depth enough dark situation of valve body 2, because the aeration resistance of sealing material 5 is very big, so can realize substantial gas seal to sealing material 5.For example, even flow out when being endowed the differential pressure of 100Pa between the 2nd space 20 of managing 4 sides with high-temperature gas in the 1st space 19 that high-temperature gas flows into pipe 3 sides, the working gas flow velocity that the fluidized bed through sealing material 5 is circulated is that 1mm/ is below second.Valve body 2 for example can be for 30mm below the above 1m to the degree of depth that buries of sealing material 5.Be to bury under the situation of the amount of burying that the degree of depth is shallower than 30mm, the sealing of sealing material 5 is not enough, being to bury under the situation of the amount of burying that the degree of depth is deeper than 1m, compares with the sealability that can realize, device is too expensive.Therefore, be made as below the above 1m of 30mm, sealing is improved, suppress cost, the outstanding separating valve of sealability 100 is provided through burying the degree of depth.
(fluidized bed gas is supplied with switching mechanism)
Fluidized bed gas is supplied with switching mechanism S and is possessed: fluidized bed gas supply source 9; The fluidized bed gas that makes sealing material 5 flowings is offered clack box 1,21,31, the fluidized bed gas pipe arrangement 11 that inside 1B, 21B, the 31B of clack box 1,21,31 is connected with outside 1C, 21C, 31C; With fluidized bed gas valve 12.Fluidized bed gas is supplied with switching mechanism S the fluidized bed air-flow is switched; With convenient valve body 2,22,32 between valve body lowering position and valve body lifting position, move move during in; Through fluidized bed gas pipe arrangement 11 fluidized bed gas is supplied with to the inside of clack box 1 1B, fluidized bed gas is not supplied with to the inside of clack box 1 1B during beyond during moving.That is, fluidized bed gas supply switching mechanism S switches the fluidized bed gas supply port 10 gas supplied flows to the bottom 1F that is arranged on clack box 1.
The switching of gas flow is carried out through the aperture of direct change fluidized bed gas valve 12.In this mode of execution, supply with owing to stopping fluidized bed gas during not going up and down at valve body 2, so fluidized bed gas valve 12 needs the function of confining gas.Only valve opening is being made as out or is closing under two kinds of situation, fluidized bed gas valve 12 can use separating valve.In addition, setting under the situation of valve opening with finer step, fluidized bed gas valve 12 can be the flow rate regulating valve that possesses block function.These separating valves, flow rate regulating valve can use the product of selling on the market.In addition, utilizing flow rate regulating valve to adjust under the situation of valve opening, can flowmeter be set in pipeline in addition, valve opening is being controlled based on its output value.As the method for adjustment valve opening, can manually carry out, also can in addition control gear be set and valve actuator is controlled automatically.
And, make in use under the situation of gas as fluidized bed gas of carbide burning, also can use and above-mentioned same mechanism.
The fluidized bed gas pipe arrangement 11 that the fluidized bed gas that is used for making sealing material 5 to flow and the fluidized bed gas of the carbide burning that is used to make sealing material 5 are supplied with to clack box 1 can be set independently.Perhaps, supply with under the prerequisite of switching mechanisms at gases such as being provided with three-way valve in addition by the supply source of fluidized bed gaseous species, can shared fluidized bed gas pipe arrangement 11.
In order to improve gas tightness, flow into the inside 2A that the lid 18 of managing 3 last end in contact is located at valve body 2 with high-temperature gas in the time of can valve cutting out, when high-temperature gas flows into pipe 3 and is inserted into the inside 2A of valve body 2.Owing to the surface that can not avoid flowing into pipe 3 at such lid 18, high-temperature gas generates the attachment that produces because of coking, tar condensation cure, so only generally be difficult to cut off fully working gas to outlet pipe 4 outflows through covering 18.But, when working gas when lid 18 and high-temperature gas flow into the slit circulation of upper end of pipe 3, because the working gas that flows into from intake channel 3 contacts with lid 18, so the generation pressure loss.And outflow is blocked by sealing material towards the working gas of outlet pipe 4 from the slit.Like this, cover 18, can improve the interior sealing of High Temperature Furnaces with gas isolation valve 100 integral body through on the basis of the sealing that realizes by sealing material 5, possessing.
In order valve body 2 to be gone up and down, makes valve body lowering or hoisting gear 8 actions that are connected with valve body 2 between valve body lifting position and valve body lowering position.Between valve body 2 and clack box 1, be provided with bellows (bellows) 14, keep the closed state of clack box 1.In addition, bellows 14 absorbs the influence of the rate of travel between valve body 2 and the clack box 1.That is, bellows 14 has stretchability, when the state with the inboard of bellows 14 is maintained airtight conditions, stretches at the bearing of trend of bellows 14.Therefore, even clack box 1 relatively moves with valve body 2, the space of the inside 1B of clack box 1 also is maintained airtight conditions.
Make valve body 2 from the valve body lifting position when the valve body lowering position moves, if sealing material 5 is a state of rest, then propelling resistance is big, and is suitable owing to need the advancing means of large-scale brute force.Given this, in this mode of execution, when valve body 2 is gone up and down in sealing material 5,1B is static in the inside of clack box 1 sealing material 5 is flowed and become fluidized bed.Through valve body 2 is gone up and down in the sealing material that becomes fluidized bed 5, the power (drag) relative with propelling force reduces.Then, stop the mobile stratification of sealing material 5, recover the sealing of sealing material 5.Like this, can valve body 2 stably be inserted into the layer depth place of sealing material 5 with smaller propelling force.In order to make clack box 1 stratification of flowing, in fluidized bed gas pipe arrangement 11, be blown into fluidized bed gas, in clack box 1, supply with fluidized bed gas from the fluidized bed gas inflow entrance 10 of the bottom 1F of clack box 1.The fluidized bed gas that supplies in the clack box 1 is disperseed through dispersion plate 6, when when being configured in the layer of the sealing material 5 on the dispersion plate 6, makes sealing material 5 flowings based on fluid resistance.
When separating valve shown in Figure 2 100 cuts out; Even so supply with fluidized bed gas to the fluidized bed of sealing material 5; Gas also can't flow out to the 1st space 19 of intake channel 3 sides, so by the sealing material 5 of the region R of the outer wall clamping of the inwall of valve body 2 and intake channel 3 flowing is not taken place sometimes yet.Under these circumstances, the above-mentioned sealing material 5 that does not have a flowing is accompanied by the rising of valve body 2 and moves to the top, might fall the part of sealing material 5 at the opening portion 3A of intake channel 3.In order to prevent this phenomenon, can flange 17 be set toward the outer side at the periphery of the upper end of intake channel 3.Through flange 17 is set, can the lower end of valve body 2 2B be accompanied by the rising of valve body 2 and be positioned at intake channel 3 opening portion 3A above before, make attached to the sealing material 5 of the inboard of valve body 2 and force to fall.Therefore, can prevent to fall in the intake channel 3 from opening portion 3A attached to the sealing material 5 of the inboard of valve body 2.
Drawing drag when generally, carrying out such drawing is than in order valve body 2 to be inserted into deeply the far away little value of static sealing material 5 needed propelling forces.Therefore, in order to carry out such drawing, need not use the valve body lowering or hoisting gear 8 of extreme brute force.
In this mode of execution, when separating valve 100 is opened, make working gas flow into pipe 3 and flow into clack box 1 from high-temperature gas, flow out pipe 4 outflow working gass from high-temperature gas.Also can adopt on the contrary, when separating valve 100 is open, makes the working gas of high temperature flow out pipe (the 1st flow channel tube) 4 and flow into clack box 1, flow into the flow path system that pipe (the 2nd flow channel tube) 3 flows out working gass from high-temperature gas from high-temperature gas with such action.In addition, in this mode of execution, valve body 2 is gone up and down, realized the switching of separating valve through utilizing valve body lowering or hoisting gear 8.For valve, opposite with such structure, valve body 2 is fixing, and the switching that makes clack box 1 go up and down to carry out separating valve through the clack box lowering or hoisting gear that utilizes other setting also has no problem.Under this situation, as long as flow between pipe 3 and the clack box 1 and high-temperature gas flows out between pipe 4 and the clack box 1 at high-temperature gas, the stretch bellows etc. of (absorption rate of travel) usefulness of the setting up-down that is accompanied by clack box 1 gets final product in addition.
(the 2nd mode of execution)
Under the state of Fig. 2, the gas of carbide burning will be supplied with to clack box 1 from fluidized bed gas inflow entrance 10 through fluidized bed gas pipe arrangement 11.Fluidized bed gas passes through in sealing material 5, and the carbide burning of sneaking in sealing material 5 is removed.The result of burning is gas such as the carbon dioxide that produced and the fluidized bed gas that has arrived the upper surface of sealing material 5 together are discharged to valve from outlet pipe 4 outside.In this mode of execution,, need not utilize fluidized bed gas that sealing material 5 is flowed owing to supply with fluidized bed gas in sealing material 5 with the state that valve body 2 is moved.Therefore, the delivery volume of fluidized bed gas can be set to such an extent that lack than the flow that sealing material 5 is flowed.Thus, the delivery volume through adjustment fluidized bed gas can make the velocity of combustion that is blended into the carbide in the sealing material 5 be in suitable scope.For example, through setting the fluidized bed gas delivery volume enough little, can prevent to cause excessively heating up in the valve because of the burning of carbide.
(the 3rd mode of execution)
The open state of having represented separating valve 200 among Fig. 3 has been represented the closed condition of separating valve 200 among Fig. 4.In addition, arrow F shown in Figure 3 representes the flow direction of working gas.
This mode of execution uses the part of high-temperature gas inflow pipe (the 1st flow channel tube) 23 as valve body.Particularly, high-temperature gas inflow pipe 23 extends towards the top of the inside of clack box 21 21B and top 21D from the top 21D of clack box 21, and the lower end 23C side of high-temperature gas inflow pipe 23 is inserted into the inside 21B of clack box 21, and upper end 23B side is connected with outside 21C.Constitute based on this, 23C flow into the inside 21B of clack box 21 to the upper end 23B that the working gas of high temperature flows into pipe 23 through high-temperature gas from the lower end.
When separating valve 200 was opened, the working gas of high temperature flowed into pipe 23 from high-temperature gas and flow into clack box 21, flowed out pipe (the 2nd flow channel tube) 24 outflows from high-temperature gas.The position of valve body at this moment (high-temperature gas flows into pipe 23) is called the valve body lifting position.When separating valve 200 cuts out; The lower end 23C that flows into pipe 23 through high-temperature gas buries in sealing material 5, and the inside 21B of clack box 21 is separated into high-temperature gas and flows into the 1st space (volume inside that comprises valve body 22) 19 of pipe 23 sides and the 2nd space 20 (inside that comprises clack box 21) that high-temperature gas flows out pipe 24 sides.Thus, the working gas of high temperature is blocked to the circulations that high-temperature gas flows out pipe 24 from high-temperature gas inflow pipe 23.The position of valve body at this moment (high-temperature gas flows into pipe 23) is called the valve body lowering position.High-temperature gas flows into the up-down of pipe 23 to carry out through the valve body lowering or hoisting gear 8 that is connected with high-temperature gas inflow pipe 23.Clack box 21 is absorbed by bellows 14 with the variation of the relative position of intake channel 23, guarantees the encapsulation of clack box 21 thus.Valve body (high-temperature gas flows into pipe 23) is identical with the 1st mode of execution with the position relation of the fluidized bed of sealing material 5 to the amount of burying, the high-temperature gas outflow pipe 24 of sealing material 5.
As shown in Figure 4; When separating valve 200 is in the decline state; Even realized the flowing of sealing material 5 sometimes; High-temperature gas flows into sealing materials 5 in the pipe 23 does not have flowing (it is poor especially between high-temperature gas flows into pipe 23 and sealing material 5, to produce thermal expansion amount, and sealing material 5 is compressed under the situation of power remarkable) yet.At this moment, rise if make high-temperature gas flow into pipe 23, then sealing material 5 can not fall and together rise with high-temperature gas inflow pipe 23.And, have nothing to do with separating valve 200 is open, can flow into the remaining sealing material 5 of inside 23D of pipe 23 at high-temperature gas, produce and make high-temperature gas inflow pipe 23 blocking problem.In order to prevent this phenomenon, can sealing material remover (sealing material is removed parts) the 15 bottom 21A that is arranged on clack box 21, that be inserted into the inside 23D of intake channel 23 during for closed condition when separating valve 200 at least be arranged on the dispersion plate 6.Diameter on sealing material remover 15 is configured to is bigger than the below.Thus, when high-temperature gas flowed into pipe 23 and rises, flowing into the together upborne central part that flows into sealing material 5 remaining among the inside 23D of pipe 23 at high-temperature gas of pipe 23 with high-temperature gas can be swept by the upper end of sealing material remover 15.If the part of sealing material 5 is swept, the compressive force that then acts on sealing material 5 is removed.As a result, be bound in the sealing material 5 that high-temperature gas flows in the pipe 23 and fall, can avoid high-temperature gas to flow into pipe 23 and stop up based on gravity.The surperficial 5A of the sealing material 5 the when upper end of preferred sealing material remover 15 is configured in and does not have the state of rest of flowing with sealing material 5 compares by the top.
Same with the 1st mode of execution, also can make the flow direction of the working gas of high temperature oppositely (flow out pipe 24 flows into flow path system from pipe 23 outflow working gass to high-temperature gas) from high-temperature gas.In addition, it is also no problem fully even replace valve body (high-temperature gas flows into pipe 23) clack box 1 to be gone up and down.
(the 4th mode of execution)
The open state of having represented separating valve 300 among Fig. 5 has been represented the closed condition of separating valve 300 among Fig. 6.In addition, arrow F shown in Figure 5 representes the flow direction of working gas.
This mode of execution is that with the difference of the 1st mode of execution high-temperature gas flows into the position of pipe (the 1st flow channel tube) 33 and the form of valve body 32.That is, as shown in Figure 5, intake channel 33 is arranged on the side 31E of clack box 31.In addition, as shown in Figure 6,31A moves towards the bottom from the top 31D of clack box 31 through valve body 32, and valve body 32 is buried in sealing material 5.Through valve body 32 is buried in sealing material 5, rise on the position of the surperficial 5A of sealing material 5, sealing material 5 flow into the inside of intake channel 33 and the inside of outlet pipe 34.Thus, the opening portion 34A of the opening portion 33A of intake channel 33 and outlet pipe 34 is closed.
In addition, do not have at sealing material shown in Figure 55 under the state of rest of flowing, the surperficial 5A of sealing material 5 is positioned at the position of opening portion 34A that sealing material 5 does not flow into opening portion 33A and the outlet pipe (the 2nd flow channel tube) 34 of intake channel 33.
When separating valve shown in Figure 6 300 cuts out; Through the sealing material of being got rid of by valve body 32 5, the inside 31B of clack box 31 is separated into the 1st space (volume inside that comprises high-temperature gas inflow pipe 33) 19 of high-temperature gas inflow pipe 33 sides and the 2nd space (volume inside that comprises high-temperature gas outflow pipe 34) 20 of the inside that comprises high-temperature gas outflow pipe 4.When separating valve shown in Figure 5 300 was opened, the working gas of high temperature flowed into pipe 33 from high-temperature gas and flow into clack box 31, flowed out from outlet pipe 34.The position of valve body 32 at this moment is called the valve body lifting position.When separating valve 300 cuts out; Bury valve body 32 through lower end 32A in sealing material 5; The part of sealing material 5 is got rid of (extruding) flows into pipe 33 and high-temperature gas flows out in the pipe 34 to high-temperature gas, make high-temperature gas flow into the opening 33A of pipe 33 and opening 34A that high-temperature gas flows out pipe 34 inaccessible.As a result, the space of clack box 31 peripheries is separated into high-temperature gas and flows into the 1st space 19 of pipe 33 sides and the 2nd space 20 that high-temperature gas flows out pipe 34 sides, and the working gas of high temperature flows into pipe 33 from high-temperature gas and hinders to the mobile quilt that high-temperature gas flows out pipe 34.The position of valve body at this moment is called the valve body lowering position.In addition, " clack box 31 periphery spaces " is meant the space that the middle sealing material 5 in the space that is communicated with clack box 31 (inner space that also comprises clack box 31 itself) can move.Particularly, the spaces of clack box 31 periphery for example are intake channel 33 and the spaces in the outlet pipe 34 in this mode of execution.The up-down of valve body 32 is carried out through the valve body lowering or hoisting gear 8 that is connected with valve body 32.Through bellows 14 is set, the relative position that absorbs clack box 31 and valve body 32 changes, and guarantees the encapsulation of clack box 31.
Same with the 1st, the 3rd mode of execution; Also can make the flow direction reverse (flow out pipe 34 from high-temperature gas and flow into the flow path system that pipe 34 flows out working gas) of the working gas of high temperature, make clack box 31 go up and down also to have no problem even replace valve body 32 to high-temperature gas.
(the 5th mode of execution)
In this mode of execution, utilize Fig. 7 (opening state) and Fig. 8 (closing state) that the separating valve 400 that the device of Fig. 1 and Fig. 2 has been appended block 121 is described.Block 121 is made up of the block of the ring-type of inboard and these two blocks of ring-type block in the outside.Valve body 2 can pass through between the block in inboard and the outside, and valve is opened and closed.Block 121 is carried to be placed on the sealing material 5.Make the working gas that flow in the clack box 1 from intake channel 3 in clack box 1, produce strong air-flow.But, in this mode of execution, owing to this strong air-flow does not directly contact with sealing material 5 based on block 121, so can suppress to cause the amount of the sealing material 5 that disperses because of the air-flow in the clack box 1.
(the 6th mode of execution)
Utilization is configured to the device of the Fig. 9 in the oven 124 with the clack box 1 of the device of Fig. 1, Fig. 2, and this mode of execution is described.If the temperature of oven 124 is a normal temperature, fan 122 is connected with outlet pipe 4 attracts, as working gas and after importing to clack box 1, it is flowed out at the atmosphere that attracts normal temperature from intake channel 3 from outlet pipe 4.Be provided with filter 123 in outlet pipe 4 outlets, the sealing material 5 that disperses is reclaimed.Outlet pipe 4 is provided with flowmeter 125 and pressure meter 126.Constitute through such device, can measure the characteristic of separating valve.That is, under the open state of valve, utilize fan 122 to attract,, can obtain pressure drop coefficient (pressure drop coefficient=2 * piezometry value/［ the intake channel flow velocity ］ of valve through using the flow at this moment and the measured load of pressure
2).Next, under the closed condition of valve, utilize fan 122 to attract,, can obtain the leak-down rate of valve through the flow that uses this moment, the measured load and the above-mentioned pressure drop coefficient of obtaining of pressure.And, utilize fan 122 to carry out the attraction of certain hour, with filter take off and to this period the particle that filter 123 traps quality carry out weighing, can obtain the sealing material mass flow rate of dispersing.
For example, the clack box of diameter 200mm, height 600mm is connected intake channel and the outlet pipe of diameter 80mm, the bottom that the zircon pearl of diameter 60～120 μ m is taped against clack box with the thickness of 80mm is as sealing material.Here, when making valve body lower end can bury the separating valve to the degree of depth of 50mm, can the leak-down rate of valve be made as below 0.005% of valve capacity coefficient (Cv value).Under open state at this valve with 50m
3When the flow of/h had carried out attraction, can make the sealing material mass flow rate of dispersing was 70g/h.
In addition, the drive unit of valve is made as cylinder, can presses the propelling force when obtaining valve and closing according to the air supply of supplying with to cylinder in the valve closing motion.Propelling force when supplying with in clack box 1 as fluidized bed gas for the air that from fluidized bed gas pipe arrangement 11 is 0.001MPa with pressure; Through carrying out the valve closing operation, can obtain valve and close needed minimum propelling force (valve cuts out the propelling force of wanting) with different propelling force conditions.For example, under the situation of above-mentioned valve, valve close the propelling force of wanting can be for below the 10N.
(the 7th mode of execution)
The thickness that alumina fibre is processed is that the block of ring-type of 40mm is to be loaded on the sealing material with Fig. 7, mode that Fig. 8 is identical; Condition in addition is all identical with the 6th mode of execution, and the leak-down rate that can make valve is below 0.005% of Cv value, makes under the open state with 50m
3Sealing material when the flow of/h has carried out the attracting mass flow rate of dispersing is 25g/h.
(the 8th mode of execution)
The zircon pearl of adopting diameter 120 μ m～400 μ m is as sealing material, and condition in addition is all identical with the 7th mode of execution, and the leak-down rate that can make valve is below 0.1% of Cv value, makes under open state with 50m
3Sealing material when the flow of/h has carried out the attracting mass flow rate of dispersing is 1g/h.
(clack box)
If from the bottom 1A of clack box 1,21,31,21A, the 31A fluidized bed gas to the suitable pressure of internal feed of clack box 1,21,31, then sealing material 5 plays a role as fluidized bed.In addition, about the fluidized bed that adopts in this mode of execution, as above-mentioned non-patent literature 1 is disclosed, established the design techniques of standard.Promptly; About the diameter of clack box, highly, the settings such as structure of the thickness of the particle diameter of sealing material, sealed material layer, gas supply pressure, flow, dispersion plate, as long as appropriately design based on the design techniques of the standard as non-patent literature 1 is disclosed.The diameter of clack box 1,21,31 for example can be for below the above 1m of 100mm.The height of clack box 1 for example can be for below the above 4m of 100mm.The bed thickness of sealing material 5 for example can be for below the above 1m of 30mm.High-temperature gas flows into pipe 3,23,33 and the opening footpath of high-temperature gas outflow pipe 4,24,34 in clack box 1,21,31 for example can be for 10mm below the above 300mm.In addition, dispersion plate 6 can use stamped metal or wire gaze.Also can replace dispersion plate 6, and use general bank tube or porous cap to supply with fluidized bed gas.
The nowed forming of the fluidized bed of preferred sealing material 5 is designed to even flowing, also can be that the bubble flowing that gas cuts (slugging) degree does not take place.Because the purpose of the flowing of the sealing material 5 in this mode of execution just reduces the resistance of sealing material 5, so flowing is as long as be inferior limit.That is, if the sealing material 5 that the flow of the fluidized bed gas of being supplied with is set for than is chosen the intrinsic big slightly flow velocity of minimal flow speed.Under the situation of so having set the fluidized bed gas flow, the thickness of the fluidized bed in the time of can fluidized bed gas being blown into (fluidized bed maximum thick) for example is maintained 2 times when static.Under the extremely big situation of gas flow ratio that clack box 1,21,31 the is supplied to flow suitable with minimal flow speed; High-temperature gas flows out pipe 4,24,34 or high-temperature gas flows into pipe 3,23,33 because the part of the sealing material 5 after the flowing flows out to, so not preferred.The high place of the upper end position that sealing material 5 when opening portion 4A, 24A, the 34A that opening portion 3A, 23A, 33A and the high-temperature gas that the high-temperature gases in the clack box 1,21,31 flow into pipe 3,23,33 flows out pipe 4,24,34 should be configured in than sealing material 5 flowings is arrived (fluidized bed maximum thick).
(valve body lowering or hoisting gear)
Under the situation of valve body lowering or hoisting gear 8 being located at (top of the furnace wall 16 of oven) outside the oven, can use the actuator of the market sale that can carry out elevating movement.For example, can use cylinder, oil hydraulic cylinder, pinion and-rack advancing means, ball screw advancing means or linear electric motor.Can use stable on heating actuator as valve body lowering or hoisting gear 8, and it is set in the stove, come the miniaturization of implement device.Method to the lifting position of valve body 2,22,32 is adjusted can manually be carried out, and distance meter or load meter and control gear also can be set in addition, comes to control automatically.The stroke of valve body lowering or hoisting gear 8 for example can be for below the above 2m of 50mm.
(heating equipment)
The heating equipment 13 that fluidized bed gas is heated is for the device that prevents that valve from carrying out preheating by the fluidized bed gas cooling and to fluidized bed gas, the alternative setting.Heating equipment 13 can be the heat exchanger of general fuel gas type, also can only set fluidized bed gas pipe arrangement stream longer, through the heat that enters into pipeline from body of heater gas is heated.
(material of the structure spare of separating valve)
Be disposed at the device in the stove as long as, can use arbitrarily and install from about normal temperature to 850 ℃ or under about 900 ℃ the hot environment, having desired intensity, rigidity, ageing resistance.For example; Bellows 14 as the parts that deform; Can use metals such as heat-resistance stainless steel, heat-resisting cobalt alloy or Incoby nickel alloys such as inconel or hastelloy or inorganic long fiber (チ ラ ノ fiber) etc. to have the heat-stable ceramic fiber of flexibility; About the parts beyond the bellows 14; Except above-mentioned material, can use graphite, carbon fiber-reinforced carbon composite, aluminium oxide, calcium oxide, magnesia, carborundum, vitreous silica, mullite, zirconia, portland cement, alumina cement or silicon nitride etc.In constituting High Temperature Furnaces, during with the low material of the oxidative resistances such as parts use graphite of gas isolation valve,, can use these materials through with being maintained non-oxidizing atmosphere, for example nitrogen atmosphere in the stove.
About being arranged at the outer device of stove,, can use the device of the Standard of market sale owing to there is not special restriction.
(sealing material)
So long as from about the normal temperature to 850 ℃ or under about 900 ℃ the high temperature, have the intensity that can tolerate flowing; And do not take place to get final product, can adopt material arbitrarily with chemical reaction, the thermolysis of self, phase change, significant sintering, the abnormal mutually bulk material of working gas.For example, can use fused quartz, aluminium oxide, calcium oxide, magnesia, zircon, stabilizing zirconia, titanium oxide, silicon nitride or silicon carbide etc.Especially when under the temperature more than 800 ℃, using separating valve,, preferably use aluminium oxide, magnesia, zircon, stabilizing zirconia, titanium oxide, silicon nitride or silicon carbide from the viewpoint of particle stability.
The particle diameter of preferred sealing material is below the above 1mm of diameter 10 μ m, more preferably below the above 500 μ m of 40 μ m.In addition, especially preferably with more than the diameter 100 μ m below the 300 μ m as Mean particle diameter.Under the little situation of size ratio diameter 10 μ m, because the surface force of particle is excessive, so even, also can't make the sealed material layer overall flowization from the bottom supply gas of fluidized bed.In addition, under the situation of particle diameter greater than diameter 1mm, if increase fluidized bed gas supply flow, then flowing takes place in sealing material 5, but in the fluidized bed of sealing material, generates huge bubble, can break on the fluidized bed surface of sealing material.Because the sealing material that generation is rolled is because of this problem of breaking and flowing out downstream, so suitable.Preferred sealing material be shaped as sphere.Wherein, Above-mentioned " particle that rerum natura is with low uncertainty " expression sealing material is with in the above-mentioned intensity that has the tolerance flowing from about the normal temperature to 850 ℃ or under about 900 ℃ the high temperature; And do not take place to be main body, and this material of main part has been sneaked into the particle (group) of the state of origin behind the carbide (solid phase and liquid phase) of working gass such as COG with chemical reaction, the thermolysis of self, phase change, significant sintering, the abnormal mutually granular material of working gas.For example; If in the intensity that has the tolerance flowing from about normal temperature to 850 ℃ or under about 900 ℃ the high temperature; And do not take place and the chemical reaction of working gas, self thermolysis, phase change, significant sintering, the carbide such as surface attachment tar of abnormal particle mutually, then the rerum natura of this particle can change a little.But; If in the intensity that has the tolerance flowing from about normal temperature to 850 ℃ or under about 900 ℃ the high temperature; And do not take place with the chemical reaction of working gas, self thermolysis, phase change, significant sintering, abnormal granular material occupies more than half at least quality of sealing material mutually, then this moment, the sealing nature was in the intensity that has the tolerance flowing from about normal temperature to 850 ℃ or under about 900 ℃ the high temperature.And, we can say sealing material be do not take place with the chemical reaction of working gas, self thermolysis, phase change, significant sintering, mutually abnormal, be rerum natura granular material with low uncertainty.In the 1st, the 2nd invention; Do not need to consider especially and whether have such foreign substance in the sealing material; But in the 3rd invention; Owing to be characterised in that and remove, so exist such foreign substance to become prerequisite in the sealing material with being blended into carbide burning in the sealing material, that himself form a kind of sealing material.
These sealing materials can use the material of market sale, also can use the material of chemosynthesis.
(fluidized bed gas)
Make fluidized bed gas that sealing material flows so long as not burn into polluting device and sealing material, the gas that the material of kickback does not take place with working gas yet gets final product, and can use gas arbitrarily.For example, can use gases such as nitrogen, carbon dioxide, helium, argon gas, methane, natural-gas, LPG, perhaps dried COG.
As the fluidized bed gas that can make carbide burning, as long as can make carbide gasization with the carbide reaction, and corrosion device and sealing material do not get final product, and can use material arbitrarily.For example, can use air, oxygen or water vapor etc.
(block)
Preferred block is material stable under the serviceability temperature scope of valve and the light-duty parts that flow that do not hinder sealing material, for example, can use porous matter or fibrous pottery.As pottery, aluminium oxide, silicon carbide etc. can be to working gas uses widely.Being under the situation of prerequisite with non-oxidizing working gas, also can use carbon.
From being not easy because of the mobile viewpoint of the air-flow in the clack box, preferred block is thicker.On the other hand, the problem that under the thick situation of block, exists valve to maximize.Therefore, the thickness of preferred block is the scope about 2mm～500mm.
(working gas of high temperature)
The wet COG that the working gas that uses in this mode of execution (high-temperature gas) is not limited to explain before this; Can also become problem to the pollution and the corrosion of valve seat, valve body to gas componant; And must continue to keep from all gas of the high temperature of normal temperature to 850 ℃, for example zinc fume, contain the application such as petroleum gas of heavy oil steam.
More than, with reference to accompanying drawing preferred implementation of the present invention is illustrated in detail, but the present invention is only for scheduling such example.If have those skilled in the art of the common knowledge in the affiliated technical field of the present invention, then can in the technological thought category that technological scheme is put down in writing, expect various changes examples or revise example that these also belong to technical scope of the present invention certainly.
For example, make the sealing material flowing though supply with switching mechanism S through fluidized bed gas, the ground that also can replace, the on-off actions through separating valve 100,200,300 etc. are by valve body 2 stirring sealing materials 5.
In addition, preferably with the major part of the component parts of separating valve, for example clack box 1, valve body 2, intake channel 3, outlet pipe 4, fluidized bed gas pipe arrangement 11, heating equipment 13 are configured in the oven.Thus, can reduce temperature difference between the parts of separating valve.In the prior art, the valve that makes high-temperature gas circulation through will be with the contact position of high-temperature gas, be that the inboard of valve remains high temperature, and the outside of valve is remained low temperature, thereby has guaranteed the intensity and the operation property of valve.When being designed to prerequisite and when valve not being provided with heating equipment, the high-temperature gas that in valve, passes through is cooled off by valve with such.Thus, for example when wet COG is circulated, exist tar to precipitate into the problem of valve inner face.In addition, also can consider heating equipment to be set, avoid from the method for the high-temperature gas heat absorption of in valve, passing through through inboard at valve.Under this situation, because the temperature difference in the inboard of valve and the outside is big, so be difficult to the inboard of valve is controlled to average and stationary temperature.In addition, in the valve of these existing technologies, owing to be endowed big temperature difference between the parts of valve, thus using under the situation of valve, can produce big thermal stress with 850 ℃ of these high temperature, thus the remarkable problem that reduces of life-span of valve caused.Given this, through remaining configuration isolation valve in the oven of temperature much at one, can the temperature that separating valve is whole remain even and constant with the high-temperature gas that in valve, passes through (gas).Thus, can avoid above-mentioned the problems of the prior art.
Description of reference numerals:
100,200,300 ... High Temperature Furnaces is interior with gas isolation valve (separating valve)
1,21,31 ... Clack box
2,22,32 ... Valve body
3,23,33 ... High-temperature gas flows into pipe (the 1st flow channel tube)
4,24,34 ... High-temperature gas flows out pipe (the 2nd flow channel tube)
5 ... Sealing material
5A ... The surface of sealing material
6 ... Dispersion plate
8 ... The valve body lowering or hoisting gear
10 ... The fluidized bed gas inflow entrance
11 ... Fluidized bed gas pipe arrangement
12 ... The fluidized bed gas valve
19 ... The 1st space of intake channel side
20 ... The 2nd space of outlet pipe side
121 ... Block
122 ... Fan
123 ... Filter
124 ... Oven
125 ... Flowmeter
126 ... Pressure meter
S ... Fluidized bed gas is supplied with switching mechanism.
Claims (8)
1. separating valve is characterized in that possessing:
Granular sealing material can flow in the temperature range till normal temperature to 900 ℃;
Clack box stockpiles above-mentioned sealing material in the bottom;
The 1st flow channel tube is connected with above-mentioned clack box, from the outside of above-mentioned clack box towards inner inflow gas;
The 2nd flow channel tube is connected with above-mentioned clack box, from the inside of above-mentioned clack box towards outside eluting gas;
Valve body; Dropping at least a portion buries in above-mentioned sealing material; To the valve body lowering position that hinders towards the gas flow of above-mentioned the 2nd flow channel tube from above-mentioned the 1st flow channel tube; And rise to the top on the surface that is configured in above-mentioned sealing material, from the valve body lifting position of above-mentioned the 1st flow channel tube towards above-mentioned the 2nd flow channel tube inflow gas; With
The valve body lowering or hoisting gear goes up and down above-mentioned valve body between above-mentioned valve body lowering position and above-mentioned valve body lifting position.
2. separating valve according to claim 1 is characterized in that,
Also possess fluidized bed gas and supply with switching mechanism, this fluidized bed gas is supplied with switching mechanism and is had the fluidized bed gas flow layer gas pipe arrangement that to internal feed above-mentioned sealing material is flowed from the outside of above-mentioned clack box;
Above-mentioned fluidized bed gas is supplied with switching mechanism above-mentioned fluidized bed gas flow is switched; With the above-mentioned valve body of box lunch between above-mentioned valve body lowering position and above-mentioned valve body lifting position, move move during in; Through above-mentioned fluidized bed gas pipe arrangement to the above-mentioned fluidized bed gas of the internal feed of above-mentioned clack box; During beyond during above-mentioned move, not to the above-mentioned fluidized bed gas of the internal feed of above-mentioned clack box.
3. use gas isolation valve in a High Temperature Furnaces, it is characterized in that possessing:
Clack box possesses the fluidized bed that granular sealing material is flowed at least, and sealing material rerum natura in the temperature range of the high temperature till normal temperature to 900 ℃ is with low uncertainty;
High-temperature gas flows out pipe, above the surface of above-mentioned fluidized bed, is connected with above-mentioned clack box;
High-temperature gas flows into pipe, according at least the open state under shed of valve be configured in above-mentioned fluidized bed the surface above mode, be connected with above-mentioned clack box;
Valve body; Under the closed condition of separating valve; Be configured at least the part of valve body and bury in the position of above-mentioned sealing material to be the valve body lowering position, to hinder with the circulation that above-mentioned high-temperature gas flows out the high-temperature gas between managing so that utilize above-mentioned sealing material that above-mentioned high-temperature gas is flowed into pipe, and; Under the open state of separating valve, the position of the top on the whole surfaces that are present in above-mentioned sealing material that are configured in valve body is the valve body lifting position;
The valve body lowering or hoisting gear makes between above-mentioned valve body lowering position of being configured in of above-mentioned valve body and the above-mentioned valve body lifting position and changes;
Fluidized bed gas pipe arrangement is connected with the bottom or the below of above-mentioned sealing material, is used for supplying with fluidized bed gas to above-mentioned clack box, and this fluidized bed gas makes the carbide burning that is blended in the above-mentioned sealing material; With
Fluidized bed gas switching mechanism switches to supply condition or halted state with the gas that makes above-mentioned carbide burning.
4. separating valve according to claim 1 and 2 is characterized in that,
Above-mentioned valve body is separated into the 1st space of the inside that comprises above-mentioned valve body and the 2nd space beyond the 1st space with the volume inside of above-mentioned clack box when dropping to above-mentioned valve body lowering position.
5. separating valve according to claim 1 and 2 is characterized in that,
When above-mentioned valve body dropped to above-mentioned valve body lowering position, the above-mentioned sealing material of being extruded by above-mentioned valve body was divided into the spatial of above-mentioned clack box periphery in the 1st space and the 2nd space that comprises the inside of above-mentioned the 2nd flow channel tube of the inside that comprises above-mentioned the 1st flow channel tube.
6. according to using gas isolation valve in any described High Temperature Furnaces in the claim 1～5, it is characterized in that,
Upper surface at above-mentioned sealing material loads the block that dispersing of sealing material suppressed.
7. according to using gas isolation valve in any described High Temperature Furnaces in the claim 2～5, it is characterized in that,
Above-mentioned fluidized bed gas is the oxidizing gas that contains aerobic.
8. according to using gas isolation valve in any described High Temperature Furnaces in the claim 1～5, it is characterized in that,
Above-mentioned sealing material is made up of more than a kind or 2 kinds what from aluminium oxide, magnesia, zircon, stabilizing zirconia, titanium oxide, silicon nitride, silicon carbide, select.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-235040 | 2009-10-09 | ||
| JP2009235040 | 2009-10-09 | ||
| PCT/JP2010/067750 WO2011043463A1 (en) | 2009-10-09 | 2010-10-08 | Gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102686922A true CN102686922A (en) | 2012-09-19 |
| CN102686922B CN102686922B (en) | 2014-04-16 |
Family
ID=43856912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080044735.4A Active CN102686922B (en) | 2009-10-09 | 2010-10-08 | Gate valve |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5578006B2 (en) |
| KR (1) | KR101419143B1 (en) |
| CN (1) | CN102686922B (en) |
| BR (1) | BR112012007797B1 (en) |
| IN (1) | IN2012DN02797A (en) |
| WO (1) | WO2011043463A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711951A (en) * | 2013-12-11 | 2014-04-09 | 天津钢研广亨特种装备股份有限公司 | Sand-seal temperature compensation high-temperature eject valve |
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| CN2536862Y (en) * | 2002-04-29 | 2003-02-19 | 马钢设计研究院有限责任公司 | Bell style three-way switching device |
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| JPS59100834U (en) * | 1982-12-22 | 1984-07-07 | 日本鋼管株式会社 | Coke oven crude coke gas shutoff valve |
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2010
- 2010-10-08 JP JP2010228398A patent/JP5578006B2/en active Active
- 2010-10-08 BR BR112012007797-0A patent/BR112012007797B1/en active IP Right Grant
- 2010-10-08 IN IN2797DEN2012 patent/IN2012DN02797A/en unknown
- 2010-10-08 WO PCT/JP2010/067750 patent/WO2011043463A1/en active Application Filing
- 2010-10-08 KR KR1020127008824A patent/KR101419143B1/en active IP Right Grant
- 2010-10-08 CN CN201080044735.4A patent/CN102686922B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE719815C (en) * | 1936-04-25 | 1942-04-18 | Braunkohle Benzin A G | Shut-off device for gas pipes |
| GB567307A (en) * | 1943-08-04 | 1945-02-07 | Woodall Duckham 1920 Ltd | Means for controlling the flow of gases through ducts |
| US3150680A (en) * | 1961-05-20 | 1964-09-29 | Huettenwerk Oberhausen Ag | Hot-gas valve |
| CN2536862Y (en) * | 2002-04-29 | 2003-02-19 | 马钢设计研究院有限责任公司 | Bell style three-way switching device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103711951A (en) * | 2013-12-11 | 2014-04-09 | 天津钢研广亨特种装备股份有限公司 | Sand-seal temperature compensation high-temperature eject valve |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120079086A (en) | 2012-07-11 |
| JP5578006B2 (en) | 2014-08-27 |
| WO2011043463A1 (en) | 2011-04-14 |
| CN102686922B (en) | 2014-04-16 |
| BR112012007797A2 (en) | 2016-08-16 |
| BR112012007797B1 (en) | 2021-02-02 |
| KR101419143B1 (en) | 2014-07-11 |
| IN2012DN02797A (en) | 2015-07-24 |
| JP2011099559A (en) | 2011-05-19 |
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