CN101368633A - Automatic swing type check valve - Google Patents

Automatic swing type check valve Download PDF

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Publication number
CN101368633A
CN101368633A CNA2007100261139A CN200710026113A CN101368633A CN 101368633 A CN101368633 A CN 101368633A CN A2007100261139 A CNA2007100261139 A CN A2007100261139A CN 200710026113 A CN200710026113 A CN 200710026113A CN 101368633 A CN101368633 A CN 101368633A
Authority
CN
China
Prior art keywords
valve
mentioned
flap
swing type
check valve
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.)
Pending
Application number
CNA2007100261139A
Other languages
Chinese (zh)
Inventor
陶永红
陈善俊
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.)
JIANGSU MING JIANG VALVE CO Ltd
Original Assignee
JIANGSU MING JIANG VALVE 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 JIANGSU MING JIANG VALVE CO Ltd filed Critical JIANGSU MING JIANG VALVE CO Ltd
Priority to CNA2007100261139A priority Critical patent/CN101368633A/en
Publication of CN101368633A publication Critical patent/CN101368633A/en
Pending legal-status Critical Current

Links

Abstract

The invention disclose an automatic swing check valve which comprises a valve body, a valve cover, a valve flap and is characterized in that a pin shaft is fixed on the connection surface of the valve cover and the valve body; one end of the valve flap is nested on the pin shaft; the valve flap processes reciprocating rotations around the pin shaft inside the valve body. The check valve has the advantages of good seal performance, erosion resistance, being adjusted according the flow rate of the medium real-timely, safety, reliability and long service life.

Description

Automatic swing type check valve
Technical field
The present invention relates to a kind of valve, relate in particular to the chlor-alkali check valve special of controlling and regulate media flow on a kind of chemical industry pipeline.
Background technique
At present, the valve that China's chemical industry is used for the control of deep-etching flowing medium such as chlor-alkali mostly is the plain cast iron valve of no liner or part liner greatly, and it is mobile to be used on the chlor-alkali pipeline controlling liquid, and corrosivity is big, liner easily comes off, fragile, produce and leak, even security incident takes place, valve is short working life, change frequently, influence is produced, and causes economic loss; Common safety check drives the flap upper and lower displacement by the handwheel rotary valve rod mostly and cuts out or Open valve, and this kind safety check can not carry out real-time regulated, complex operation with the flow of medium.
Summary of the invention
The object of the present invention is to provide a kind of sealing configuration novelty, corrosion-resistant, can carry out real-time regulated according to the flow of medium, easy to operate, the automatic swing type check valve of long service life.
The technological scheme that the present invention solves its technical problem is: a kind of automatic swing type check valve, it comprises valve body, valve gap, flap, difference is, be fixed with bearing pin on above-mentioned valve gap and the valve body junction surface, above-mentioned flap one end is placed on the above-mentioned bearing pin, and above-mentioned flap is that crankmotion is made at the center with above-mentioned bearing pin in valve body.
The internal surface of above-mentioned valve body, valve gap and terminal area all are covered with anticorrosive coat, and the outer surface of above-mentioned flap, bearing pin is covered with anticorrosive coat.
The internal surface of above-mentioned valve body, valve gap and terminal area all are equipped with groove, and above-mentioned anticorrosive coat infiltrates in the groove.
The width of rebate of above-mentioned groove is not more than the bottom land width.
Be equipped with through hole on the above-mentioned flap, above-mentioned anticorrosive coat infiltrates in the through hole, and the anticorrosive coat of flap outer surface is connected as a single entity.
Above-mentioned bearing pin is an anti-corrosion material.
Above-mentioned anticorrosive coat is fluoroplastic.
The present invention compared with prior art has following advantage:
1, the valve body of this automatic swing type check valve, valve gap internal surface and end face all are equipped with groove, infiltrate anticorrosive coat in the groove, and the width of rebate of groove is not more than the bottom land width, and the anticorrosive coat fixation comes off, corrosion resistance and good, long service life.
2, be equipped with through hole on the flap of this automatic swing type check valve, anticorrosive coat infiltrates in the through hole, and the anticorrosive coat of flap upper and lower surface is connected as a single entity, and anti-corrosion layer structure is firm, is difficult for dislocation, good seal performance.
3, the anticorrosive coat of this automatic swing type check valve is teflon, and is corrosion-resistant, not yielding, good seal performance, long service life.
4, this automatic swing type check valve can carry out real-time regulated according to the flow of medium, and is easy to operate.
Description of drawings
Fig. 1 is the structural representation of automatic swing type check valve of the present invention.
Embodiment
Below in conjunction with accompanying drawing automatic swing type check valve of the present invention is further described.
As shown in Figure 1, a kind of automatic swing type check valve, it comprises valve body 1, valve gap 2, flap 3, difference is, be fixed with bearing pin 21 on above-mentioned valve gap 2 and valve body 1 junction surface, above-mentioned flap 3 one ends are placed on the above-mentioned bearing pin 21, and above-mentioned flap 3 is that crankmotion is made at the center with above-mentioned bearing pin 21 in valve body 1; The internal surface of above-mentioned valve body 1, valve gap 2 and terminal area all are covered with anticorrosive coat 41,42, and the outer surface of above-mentioned flap 3 is covered with anticorrosive coat 43.
The internal surface and the terminal area of above-mentioned valve body 1, valve gap 2 all are equipped with groove 5, and above-mentioned anticorrosive coat 41,42 infiltrates in the groove 5.
The width of rebate of above-mentioned groove 5 is not more than the bottom land width.
Be equipped with through hole 31 on the above-mentioned flap 3, above-mentioned anticorrosive coat 43 infiltrates in the through hole 31, and the anticorrosive coat 43 of flap 3 outer surfaces is connected as a single entity.Above-mentioned bearing pin 21 is an anti-corrosion material.Above-mentioned anticorrosive coat 41,42,43 is fluoroplastic.
When media flow, it is middle mind-set valve body 1 one sideway swivels with bearing pin 21 that the active force of medium promotes flap 3, valve open; When the flow velocity of medium increases or reduces, flap 3 will be adjusted angle of swing automatically; When medium stopped to flow, flap 3 resetted, valve closing.

Claims (7)

1. automatic swing type check valve, it comprises valve body, valve gap, flap, it is characterized in that: be fixed with bearing pin on above-mentioned valve gap and the valve body junction surface, above-mentioned flap one end is placed on the above-mentioned bearing pin, and above-mentioned flap is that crankmotion is made at the center with above-mentioned bearing pin in valve body.
2. automatic swing type check valve according to claim 1 is characterized in that: the internal surface of above-mentioned valve body, valve gap and terminal area all are covered with anticorrosive coat, and the outer surface of above-mentioned flap, bearing pin is covered with anticorrosive coat.
3. automatic swing type check valve according to claim 1 is characterized in that: the internal surface of above-mentioned valve body, valve gap and terminal area all are equipped with groove, and above-mentioned anticorrosive coat infiltrates in the groove.
4. automatic swing type check valve according to claim 1 is characterized in that: the width of rebate of above-mentioned groove is not more than the bottom land width.
5. automatic swing type check valve according to claim 1 is characterized in that: be equipped with through hole on the above-mentioned flap, above-mentioned anticorrosive coat infiltrates in the through hole, and the anticorrosive coat of flap outer surface is connected as a single entity.
6. automatic swing type check valve according to claim 1 is characterized in that: above-mentioned bearing pin is an anti-corrosion material.
7. automatic swing type check valve according to claim 1 is characterized in that: above-mentioned anticorrosive coat is fluoroplastic.
CNA2007100261139A 2007-08-13 2007-08-13 Automatic swing type check valve Pending CN101368633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100261139A CN101368633A (en) 2007-08-13 2007-08-13 Automatic swing type check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100261139A CN101368633A (en) 2007-08-13 2007-08-13 Automatic swing type check valve

Publications (1)

Publication Number Publication Date
CN101368633A true CN101368633A (en) 2009-02-18

Family

ID=40412582

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100261139A Pending CN101368633A (en) 2007-08-13 2007-08-13 Automatic swing type check valve

Country Status (1)

Country Link
CN (1) CN101368633A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832412A (en) * 2010-04-27 2010-09-15 鞍山市大孤山阀门厂 Vertical wear-resisting rubber liner check valve
CN105546165A (en) * 2016-03-03 2016-05-04 芜湖耐得胶管阀业有限公司 Vertical rubber-lined check valve
CN106542074A (en) * 2016-12-12 2017-03-29 中国船舶重工集团公司第七〇九研究所 Ship is from flow cooling system flow adjuster, from flow cooling system and ship
CN107345584A (en) * 2016-05-06 2017-11-14 青岛经济技术开发区海尔热水器有限公司 A kind of anti-vacuum relief valve and water heater

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832412A (en) * 2010-04-27 2010-09-15 鞍山市大孤山阀门厂 Vertical wear-resisting rubber liner check valve
CN105546165A (en) * 2016-03-03 2016-05-04 芜湖耐得胶管阀业有限公司 Vertical rubber-lined check valve
CN107345584A (en) * 2016-05-06 2017-11-14 青岛经济技术开发区海尔热水器有限公司 A kind of anti-vacuum relief valve and water heater
CN106542074A (en) * 2016-12-12 2017-03-29 中国船舶重工集团公司第七〇九研究所 Ship is from flow cooling system flow adjuster, from flow cooling system and ship

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20090218