CN104776241A - Flat gate valve used for dilute phase pneumatic conveying - Google Patents

Flat gate valve used for dilute phase pneumatic conveying Download PDF

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Publication number
CN104776241A
CN104776241A CN201510167711.2A CN201510167711A CN104776241A CN 104776241 A CN104776241 A CN 104776241A CN 201510167711 A CN201510167711 A CN 201510167711A CN 104776241 A CN104776241 A CN 104776241A
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CN
China
Prior art keywords
valve
groove
flashboard
gate valve
plate
Prior art date
Application number
CN201510167711.2A
Other languages
Chinese (zh)
Other versions
CN104776241B (en
Inventor
崔宝玲
马光飞
林哲
徐洪光
Original Assignee
浙江理工大学
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Filing date
Publication date
Application filed by 浙江理工大学 filed Critical 浙江理工大学
Priority to CN201510167711.2A priority Critical patent/CN104776241B/en
Publication of CN104776241A publication Critical patent/CN104776241A/en
Application granted granted Critical
Publication of CN104776241B publication Critical patent/CN104776241B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor

Abstract

The invention discloses a flat gate valve used for dilute phase pneumatic conveying. A flashboard is installed in the flat gate valve; the upper end of a valve body is successively provided with a valve deck and a top cover; a guide sleeve is arranged in the top cover; one end of the valve rod is connected with the flashboard via a valve rod nut; the other end of the valve rod passes through the guide sleeve to extend out of the top cover; a handwheel is rotated to drive the valve rod nut on the valve rod to cause the flashboard on the bottom of the valve rod to vertically move to start a gate valve. According to the flat gate valve, a spring is placed in a groove on the bottom of the valve body; a panel is arranged on the top of the spring; two sides of the upper part of the panel are respectively provided with a stop groove; the left side and the right side of the opening of the groove on the bottom of the valve body are respectively symmetrically welded with welding plates with the same size; the width and the length of the stop groove are the same with the width and the length of each welding plate. A phenomenon that solid-phase particles in the dilute phase pneumatic conveying are deposited on the bottom of the groove of the flat gate valve can be effectively avoided, and the abrasion of the wall surface of the valve body on the bottom of the groove of the flat gate valve can be avoided. According to the flat gate valve, the requirements of fields, such as the conveying of gas blended with a small quantity of impurities and dilute phase pneumatic conveying can be met.

Description

For the plate valve of dilute phase pneumatic conveying
Technical field
The present invention relates to a kind of plate valve, especially relate to a kind of plate valve for dilute phase pneumatic conveying.
Background technique
Gate valve is generally used for the media flow of opening or blinding off a line, and open-shut device is flashboard, and moving direction and the flow direction of flashboard are perpendicular.Gate valve can only be used as standard-sized sheet and complete shut-down, can not make adjustments and use with throttling.The wherein slide-valve of plate valve to be a kind of closure member be parallel gate plate.Its closure member can be Single disc or therebetween with the double-flashboard of spreading mechanism.The advantage of plate valve is that body is simple, structure length is short, resistance is little, MEDIA FLOW is to unrestricted, not disturbance; Shortcoming easily causes erosion and scratch between sealing surface, and maintenance difficult, especially when seat bottom portion accumulates foreign material, flashboard is not closed completely.Outside screw stem rising through handwheel type gate valve is opened needs larger space.Standard-sized sheet, full cut-off need the long period.In addition, when gate valve is used in Geldart-D particle, especially dilute phase pneumatic conveying, the particle packing of body base groove during gate valve standard-sized sheet, body base groove walls surface wear are all very serious.
Therefore, the working principle of research dilute phase pneumatic conveying middle plateform gate valve and vibrational power flow, when preventing gate valve standard-sized sheet body base groove particle packing, prevent the wearing and tearing of body base groove wall, extremely important to sealability when improving the working life of gate valve and close.
Summary of the invention
Overcome the defect of existing dilute phase pneumatic conveying middle plateform gate valve, the object of the present invention is to provide a kind of plate valve for dilute phase pneumatic conveying, reduce the wearing and tearing of plate valve groove, improve the working life of gate valve.
The technical solution used in the present invention is:
The present invention includes valve body, flashboard, valve rod, valve gap, guide sleeve, top cover, handwheel and Stem Mut; Valve body is built with flashboard, valve body upper end is equipped with valve gap and top cover successively, top cover is built with guide sleeve, one end of valve rod is connected with flashboard by Stem Mut, the other end of valve rod stretches out outside top cover through guide sleeve, the Stem Mut rotated on handwheel band ovable valve stem makes the flashboard of stem bottom move up and down, opening and closing gate valve.The present invention is also placed with spring in body base groove, place dull and stereotyped above spring, dull and stereotyped both sides, top have retaining groove, and the left and right sides, body base slot opening place is symmetrical is respectively welded with the identical welded plate of size, and the width of retaining groove is identical with length with the width of welded plate with length.
Described flat board is woodboard or plastic board.
The plank that dull and stereotyped material selection material is lighter or plastics.
The beneficial effect that the present invention has is:
By the understanding to pipeline dilute phase pneumatic conveying, in conjunction with particle packing principle and erosion of wall principle, solve plate valve some shortcomings in dilute phase pneumatic conveying.The present invention makes full use of the spring placed in valve body of flat gate valve bottom groove, flat board on spring, the welded plate that the symmetrical size be welded with is identical respectively along the left and right sides, medium circulating direction valve body of flat gate valve slot opening place, when plate valve standard-sized sheet, the original groove runner of gate valve becomes straight pipeline runner, prevents inside grooves from having particle packing and the wearing and tearing that particles collision gate valve body groove wall produces occur; When plate valve is closed, by the elastic force of spring action on flashboard, strengthen the sealability of plate valve; When Stem Mut lost efficacy, due to spring and dull and stereotyped effect, the bottom portion of groove of plate valve can not be subject to serious flashboard and impact, but a process slowly declined.
The present invention can meet the demand in the field such as gas conveying, dilute phase pneumatic conveying being mingled with a small amount of impurity.
Accompanying drawing explanation
Fig. 1 is plate valve plan view of the present invention.
Fig. 2 is the spring of plate valve bottom portion of groove of the present invention placement and dull and stereotyped combination unit graphics.
In figure: 1. valve body, 2. spring, 3. dull and stereotyped, 4. welded plate, 5. flashboard, 6. valve rod, 7. flange, 8. screw, 9. valve gap, 10. " O " shape seal ring, 11. guide sleeves, 12. top covers, 13. handwheels, 14. Stem Muts, the substantially horizontal that 15. media pass through, 16. body base grooves, 17. retaining grooves.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the present invention includes valve body 1, flashboard 5, valve rod 6, flange 7, screw 8, valve gap 9, " O " shape seal ring 10, guide sleeve 11, top cover 12, handwheel 13 and Stem Mut 14; Valve body 1 is built with flashboard 5, valve body 1 upper end is connected by flange 7 screw 8 with valve gap 9 lower end, valve gap 9 upper end is also connected with screw with top cover 12 lower end, top cover 12 is built with guide sleeve 11, one end of valve rod 6 is connected with flashboard 5 by Stem Mut 14, the other end of valve rod 6 stretches out outside top cover 12 through guide sleeve 11, rotating handwheel 13 makes the flashboard 5 bottom valve rod 6 move up and down with the Stem Mut 14 on ovable valve stem 6, opening and closing gate valve, top cover 12 is contained in the pressure that handwheel 13 bottom is used for increasing " O " shape seal ring 10.The present invention is also placed with spring 2 in body base groove 16, spring 2 places dull and stereotyped 3 above, dull and stereotyped 3 both sides, top have retaining groove 17, the body base groove 16 opening left and right sides is symmetrical is respectively welded with the identical welded plate of size 4, and the width of retaining groove 17 is identical with length with the width of welded plate 4 with length.
Spring 2 and dull and stereotyped 3, can directly be placed in gate valve body bottom groove 16, also can fix as a whole by spring 2 and dull and stereotyped 3 by bonding method.Be welded with the identical welded plate of size by the gate valve body bottom groove opening left and right sides is symmetrical respectively, overcome the elastic force of spring, spring 2 and dull and stereotyped 3 are squeezed in gate valve body bottom groove.The retaining groove 17 of dull and stereotyped 3 both sides is to match with welded plate 4, excises that the width of one piece of width and length and welded plate 4 and length same material obtain from complete square plate.
Described dull and stereotyped 3 is woodboard or plastic board.
As shown in Figure 1 and Figure 2, when rotating handwheel 13, the Stem Mut 14 on valve rod 6, will carry out opening or closing motion by the flashboard 5 with the plate valve under ovable valve stem 6, controls the keying of plate valve.When plate valve is opened, the spring 2 placed in plate valve bottom groove 16, under the effect of spring 2 elastic force, the flat board 3 be positioned on spring 2 will be pushed open, make dull and stereotyped 3 to match with the plate valve groove body base 16 opening left and right sides welded plate 4 that the symmetrical size be welded with is identical respectively, use original groove runner to become straight pipeline instantaneously.When plate valve closes, the flashboard 5 of plate valve will extrude the flat board 3 be positioned on spring 2, and spring 2 acts on the elastic force of the flashboard 5 of plate valve, strengthens the sealability of plate valve.
working principle of the present invention is:
When the flashboard 5 of plate valve is opened, the groove runner of original valve body of flat gate valve bottom groove 16 is become a straight pipeline, 15 substantially horizontals passed through for medium by the effect of spring 2 and dull and stereotyped 3; When the flashboard 5 of plate valve cuts out, by mutually extruding the sealability increasing plate valve.This plate valve for dilute phase pneumatic conveying, is intended to the erosion of wall prevented the particle packing in existing Geldart-D particle middle plateform gate valve body bottom groove 16 and valve body of flat gate valve bottom groove 16, and does not increase overweight external load to plate valve.

Claims (2)

1. the plate valve for dilute phase pneumatic conveying, comprise valve body (1), flashboard (5), valve rod (6), valve gap (9), guide sleeve (11), top cover (12), handwheel (13) and Stem Mut (14); Valve body (1) is built with flashboard (5), valve body (1) upper end is equipped with valve gap (9) and top cover (12) successively, top cover (12) is built with guide sleeve (11), one end of valve rod (6) is connected with flashboard (5) by Stem Mut (14), the other end of valve rod (6) stretches out top cover (12) outward through guide sleeve (11), the Stem Mut (14) rotated on handwheel (13) band ovable valve stem (6) makes the flashboard (5) of valve rod (6) bottom move up and down, opening and closing gate valve; It is characterized in that: in body base groove (16), be placed with spring (2), spring (2) places flat board (3) above, dull and stereotyped (3) both sides, top have retaining groove (17), body base groove (16) the opening left and right sides is symmetrical is respectively welded with the identical welded plate of size (4), and the width of retaining groove (17) is identical with length with the width of welded plate (4) with length.
2. a kind of plate valve for dilute phase pneumatic conveying according to claim 1, is characterized in that: described flat board (3) is woodboard or plastic board.
CN201510167711.2A 2015-04-10 2015-04-10 Flat gate valve used for dilute phase pneumatic conveying CN104776241B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510167711.2A CN104776241B (en) 2015-04-10 2015-04-10 Flat gate valve used for dilute phase pneumatic conveying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510167711.2A CN104776241B (en) 2015-04-10 2015-04-10 Flat gate valve used for dilute phase pneumatic conveying

Publications (2)

Publication Number Publication Date
CN104776241A true CN104776241A (en) 2015-07-15
CN104776241B CN104776241B (en) 2017-05-03

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CN201510167711.2A CN104776241B (en) 2015-04-10 2015-04-10 Flat gate valve used for dilute phase pneumatic conveying

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780227A (en) * 2019-01-28 2019-05-21 王欣 A kind of safety-valve with protection structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2498649Y (en) * 2001-06-21 2002-07-03 湖南金码科技发展有限公司 Anti-shock keyboard
CN101586737A (en) * 2009-06-11 2009-11-25 刘子良 Self-operated emergency cutting method of fluid pipe and self-operated flat-plate emergency cut-off valve
CN201844049U (en) * 2010-11-11 2011-05-25 北京卓为新能技术有限公司 Backward-acting gate valve
CN202418669U (en) * 2011-12-20 2012-09-05 江苏宏泰石化机械有限公司 Flat valve of high sealing property
CN102678953A (en) * 2011-03-07 2012-09-19 韦波 Rear-seal high-pressure flat gate valve for salt well valve
CN203641535U (en) * 2013-11-14 2014-06-11 黄燕民 Novel flat gate valve
CN204573155U (en) * 2015-04-10 2015-08-19 浙江理工大学 A kind of plate valve for dilute phase pneumatic conveying

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2498649Y (en) * 2001-06-21 2002-07-03 湖南金码科技发展有限公司 Anti-shock keyboard
CN101586737A (en) * 2009-06-11 2009-11-25 刘子良 Self-operated emergency cutting method of fluid pipe and self-operated flat-plate emergency cut-off valve
CN201844049U (en) * 2010-11-11 2011-05-25 北京卓为新能技术有限公司 Backward-acting gate valve
CN102678953A (en) * 2011-03-07 2012-09-19 韦波 Rear-seal high-pressure flat gate valve for salt well valve
CN202418669U (en) * 2011-12-20 2012-09-05 江苏宏泰石化机械有限公司 Flat valve of high sealing property
CN203641535U (en) * 2013-11-14 2014-06-11 黄燕民 Novel flat gate valve
CN204573155U (en) * 2015-04-10 2015-08-19 浙江理工大学 A kind of plate valve for dilute phase pneumatic conveying

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109780227A (en) * 2019-01-28 2019-05-21 王欣 A kind of safety-valve with protection structure

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PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
EXSB Decision made by sipo to initiate substantive examination
CB03 Change of inventor or designer information

Inventor after: Zhu Zuchao

Inventor after: Lin Zhe

Inventor after: Ma Guangfei

Inventor after: Cui Baoling

Inventor after: Xu Hongguang

Inventor before: Cui Baoling

Inventor before: Ma Guangfei

Inventor before: Lin Zhe

Inventor before: Xu Hongguang

Inventor after: Zhu Zuchao

Inventor after: Lin Zhe

Inventor after: Ma Guangfei

Inventor after: Cui Baoling

Inventor after: Xu Hongguang

Inventor before: Cui Baoling

Inventor before: Ma Guangfei

Inventor before: Lin Zhe

Inventor before: Xu Hongguang

CB03 Change of inventor or designer information
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20150715

Assignee: ZHEJIANG GUTE PNEUMATIC MACHINERY Co.,Ltd.

Assignor: ZHEJIANG SCI-TECH University

Contract record no.: X2020330000022

Denomination of invention: Flat gate valve used for dilute phase pneumatic conveying

Granted publication date: 20170503

License type: Common License

Record date: 20200423

EE01 Entry into force of recordation of patent licensing contract