CN202484345U - Slag locking valve - Google Patents

Slag locking valve Download PDF

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Publication number
CN202484345U
CN202484345U CN2012201033155U CN201220103315U CN202484345U CN 202484345 U CN202484345 U CN 202484345U CN 2012201033155 U CN2012201033155 U CN 2012201033155U CN 201220103315 U CN201220103315 U CN 201220103315U CN 202484345 U CN202484345 U CN 202484345U
Authority
CN
China
Prior art keywords
valve
valve seat
rotating shaft
valve body
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012201033155U
Other languages
Chinese (zh)
Inventor
金克雨
顾玉海
秦永亚
缑志奇
尚玉来
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOTELI VALVE GROUP Co Ltd
Original Assignee
BOTELI VALVE GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOTELI VALVE GROUP Co Ltd filed Critical BOTELI VALVE GROUP Co Ltd
Priority to CN2012201033155U priority Critical patent/CN202484345U/en
Application granted granted Critical
Publication of CN202484345U publication Critical patent/CN202484345U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a slag locking valve, comprising a valve body, a valve seat, a spherical body, a valve rod, a valve cover, a pneumatic driving device, a sealing piece and a mounting piece. The slag locking valve is mainly characterized in that a sealing specific pressure adjusting device is arranged on the valve seat; the sealing specific pressure adjusting device consists of an adjusting air cylinder, a swinging rod and a concave rotating shaft; the adjusting air cylinder is fixedly mounted on the outer wall of the valve body; the output end of a piston rod of the adjusting air cylinder is hinged with one end of the swinging rod; the other end of the swinging rod is fixedly connected with one end of the concave rotating shaft; the other end of the concave rotating shaft is embedded on the valve seat after passing through the valve body; a sealing device is arranged between the middle part of the concave rotating shaft and the valve body; and an air source pipeline of the adjusting air cylinder is connected with an output port of a control solenoid valve. Before the valve is opened, the valve seat departs from the sealing surface of the spherical body; and after the valve is closed, the valve seat is tightly pressed to the sealing surface of the spherical body, so that the friction abrasion between the valve seat and the sealing surface of the spherical body in a valve opening-closing process is avoided. Therefore, the slag locking valve has the advantages of high sealing reliability, long service life and the like, and is applicable to a control valve in a slag discharging pipeline of a coal slurry gasification furnace.

Description

Lock slag valve
Technical field
The utility model belongs to valve field, specifically about a kind of ball valve.The utility model is applicable to the control valve of coal slurry gasification oven Residue extraction pipeline.
Background technique
On the Residue extraction pipeline of coal slurry gasification operating mode; High temperature such as pulp water, steam, coal gas, high wearing and tearing, deep-etching characteristics are arranged in the medium; The valve that requires to use on the pipeline has current global mechanism, function such as high temperature resistant, wear-resistant, corrosion-resistant, so generally adopt hard seal ball valve.At present, the structure of hard seal ball valve generally is made up of valve body, spheroid, valve seat, valve rod, valve gap, Sealing and assembling set, and the sealing surface of spheroid and valve seat sprays respectively or the pile-up welding hard alloy material, improves the wear-resisting property of sealing pair.Valve seat adopts floating structure, and it is stuck to prevent that valve seat and spheroid high temperature from expanding.Have characteristics such as high temperature resistant, wear-resistant.But in coal slurry gasification operating mode, medium has characteristics such as particle, coking, and cinder meeting coking is on spheroid and sealing surface of seat, and coking material made very quick-wearing of sealing pair when ball valve opened and closed, and the product sealing reliability is poor, working life short.
Summary of the invention
The purpose of the utility model is the shortcoming that exists to existing technology, provides that a kind of sealability is reliable, the lock slag valve of long service life.
The technological scheme of the utility model comprises valve body, valve seat, spheroid, valve rod, valve gap, pneumatic actuating device, Sealing and assembling set; Be sealed and matched firmly between valve seat and the spheroid, valve rod one end is fixedly connected with spheroid, and the other end is connected with the transmission shaft of pneumatic actuating device; Mainly be that valve seat is provided with the seal pressure controlling device; Said seal pressure controlling device is formed by regulating cylinder, fork and recessed rotating shaft, regulates cylinder and is fixedly mounted on the valve outer wall, and an end of the output terminal of its piston rod and fork is hinged; The other end of fork is fixedly connected with an end of recessed rotating shaft; The other end of recessed rotating shaft passes valve body and fixedly is inlaid on the valve seat, is provided with seal arrangement in the middle of the recessed rotating shaft and between the valve body, and the gas source pipe of regulating cylinder is connected with the output port of control electromagnetic valve.
In above technological scheme, at the inlet passage and the ceramic coated anticorrosive coat of outlet passage inwall difference of valve body.
In above technological scheme, the high pressure nozzle that is communicated with valve pocket is housed on the valve body, an end of this high pressure nozzle is connected with the water source controlling plumbing fixtures, and the other end is communicated with the inboard valve pocket of valve seat.
In above technological scheme, valve seat is shaped on the annular air indent, and this annular air indent is communicated with air pipe interface on the valve body, and air pipe interface is connected with the electromagnetic valve outlet end through tracheae.
The utility model has the advantages that and on valve seat, be provided with the seal pressure controlling device; Before valve opening; Make valve seat leave the ball seal face, and behind valve closing, valve seat is compressed the ball seal face; Avoid the wearing and tearing of the frictional property between the valve seat and ball seal face in the valve opening and closing process, improve product sealing reliability and working life.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structure cut-away view of A-A direction among the utility model Fig. 1.
Embodiment
Lock slag valve as shown in Figure 1 comprises valve body 1, valve seat 3, spheroid 4, valve rod 11, valve gap 7, pneumatic actuating device 12, Sealing and assembling set, is sealed and matched firmly between valve seat 3 and the spheroid 4; Valve rod 11 1 ends are fixedly connected with spheroid 4; The other end is connected with the transmission shaft of pneumatic actuating device 12, and valve seat 3 is provided with the seal pressure controlling device, and said seal pressure controlling device is formed by regulating cylinder 9, fork 8 and recessed rotating shaft 2; Regulating cylinder 9 is fixedly mounted on valve body 1 outer wall; One end of the output terminal of its piston rod and fork 8 is hinged, and the other end of fork 8 is fixedly connected with an end of recessed rotating shaft 2, and the other end of recessed rotating shaft 2 passes valve body 1 and fixedly is inlaid on the valve seat 3; Be provided with seal arrangement between recessed rotating shaft 2 centres and the valve body 1, the gas source pipe of regulating cylinder 9 is connected with the output port of control electromagnetic valve.Before pneumatic actuating device 12 receives the source of the gas Open valve, regulate cylinder 9 and receive source of the gas promotion piston rod earlier, drive fork 8, recessed rotating shaft 2, valve seat 3 is left spheroid 4 sealing surfaces on valve body 1 channel centerline direction; And after pneumatic actuating device 12 receives the source of the gas throttle down; Regulate cylinder 9 and receive source of the gas promotion piston rod; Drive fork 8, recessed rotating shaft 2; Valve seat 3 is compressed spheroid 4 sealing surfaces on valve body 1 channel centerline direction, realize not having between spheroid 4 and valve seat 3 sealing surfaces friction and open and close, improve the seal pressure between valve seat 3 and spheroid 4 sealing surfaces.
At the inlet passage and the ceramic coated anticorrosive coat 5 of outlet passage inwall difference of valve body 1, improve the wear-resistant and decay resistance of valve body 1.Valve body 1 is made up of left valve barrel and right valve barrel, between left valve barrel and right valve barrel, is provided with sealing gasket 6, and is as shown in Figure 2.
The high pressure nozzle that is communicated with valve pocket is housed on the valve body 1; One end of this high pressure nozzle is connected with the water source controlling plumbing fixtures, and the other end is communicated with valve seat 3 inboard valve pockets, when spheroid 4 rotates, sprays high pressure waters to spheroid 4 surfaces; Realization is to the flushing of spheroid 4 sealing surfaces; Reduce slag particle or ground-slag and get into sealing pair, reduce the wearing and tearing of sealing pair, improve product working life.
Valve seat 3 is shaped on the annular air indent, and this annular air indent is communicated with air pipe interface 10 on the valve body 1, and air pipe interface 10 is connected with the electromagnetic valve outlet end through tracheae.At the valve closing state, the annular air indent is connected pressurized gas, and the annular air indent breaks off pressurized gas before the valve opening.

Claims (5)

1. lock the slag valve for one kind; Comprise valve body (1), valve seat (3), spheroid (4), valve rod (11), valve gap (7), pneumatic actuating device (12), Sealing and assembling set; Be sealed and matched firmly between valve seat (3) and the spheroid (4), valve rod (11) one ends are fixedly connected with spheroid (4), and the other end is connected with the transmission shaft of pneumatic actuating device (12); It is characterized in that valve seat (3) is provided with the seal pressure controlling device; Said seal pressure controlling device is formed by regulating cylinder (9), fork (8) and recessed rotating shaft (2), regulates cylinder (9) and is fixedly mounted on valve body (1) outer wall, and an end of the output terminal of its piston rod and fork (8) is hinged; The other end of fork (8) is fixedly connected with an end of recessed rotating shaft (2); The other end of recessed rotating shaft (2) passes valve body (1) and fixedly is inlaid on the valve seat (3), is provided with seal arrangement in the middle of the recessed rotating shaft (2) and between the valve body (1), and the gas source pipe of regulating cylinder (9) is connected with the output port of control electromagnetic valve.
2. lock slag valve according to claim 1 is characterized in that inlet passage and outlet passage inwall difference ceramic coated anticorrosive coat (5) at valve body (1).
3. lock slag valve according to claim 1 and 2 is characterized in that the high pressure nozzle that is communicated with valve pocket is housed on the valve body (1), and an end of this high pressure nozzle is connected with the water source controlling plumbing fixtures, and the other end is communicated with the inboard valve pocket of valve seat (3).
4. lock slag valve according to claim 1 and 2 is characterized in that valve seat (3) is shaped on the annular air indent, and this annular air indent is communicated with air pipe interface (10) on the valve body (1), and air pipe interface (10) is connected with the electromagnetic valve outlet end through tracheae.
5. lock slag valve according to claim 3 is characterized in that valve seat (3) is shaped on the annular air indent, and this annular air indent is communicated with air pipe interface (10) on the valve body (1), and air pipe interface (10) is connected with the electromagnetic valve outlet end through tracheae.
CN2012201033155U 2012-03-14 2012-03-14 Slag locking valve Expired - Fee Related CN202484345U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012201033155U CN202484345U (en) 2012-03-14 2012-03-14 Slag locking valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012201033155U CN202484345U (en) 2012-03-14 2012-03-14 Slag locking valve

Publications (1)

Publication Number Publication Date
CN202484345U true CN202484345U (en) 2012-10-10

Family

ID=46958769

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012201033155U Expired - Fee Related CN202484345U (en) 2012-03-14 2012-03-14 Slag locking valve

Country Status (1)

Country Link
CN (1) CN202484345U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107388826A (en) * 2017-07-31 2017-11-24 成都中机盈科科技有限公司 A kind of manual discharge system with filter residue function
CN107524854A (en) * 2017-09-21 2017-12-29 安徽荣达阀门有限公司 A kind of remote controlled gate valve
CN110425299A (en) * 2019-08-12 2019-11-08 重庆特通阀门有限公司 A kind of gasification furnace lock hopper residual cake valve and its application method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107388826A (en) * 2017-07-31 2017-11-24 成都中机盈科科技有限公司 A kind of manual discharge system with filter residue function
CN107524854A (en) * 2017-09-21 2017-12-29 安徽荣达阀门有限公司 A kind of remote controlled gate valve
CN110425299A (en) * 2019-08-12 2019-11-08 重庆特通阀门有限公司 A kind of gasification furnace lock hopper residual cake valve and its application method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121010

Termination date: 20210314

CF01 Termination of patent right due to non-payment of annual fee