CN201152383Y - Lifting check valve - Google Patents

Lifting check valve Download PDF

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Publication number
CN201152383Y
CN201152383Y CNU2007200431794U CN200720043179U CN201152383Y CN 201152383 Y CN201152383 Y CN 201152383Y CN U2007200431794 U CNU2007200431794 U CN U2007200431794U CN 200720043179 U CN200720043179 U CN 200720043179U CN 201152383 Y CN201152383 Y CN 201152383Y
Authority
CN
China
Prior art keywords
valve
mentioned
check valve
flap
anticorrosive coat
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 - Lifetime
Application number
CNU2007200431794U
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 CNU2007200431794U priority Critical patent/CN201152383Y/en
Application granted granted Critical
Publication of CN201152383Y publication Critical patent/CN201152383Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a lift type check valve, which comprises a valve body, a valve cover and a valve clack. The differences are that the section of the valve clack forms a reversed T shape; the valve cover is provided with a guide trough; the top part of the valve clack is arranged in the guide trough, and is matched with the guide trough. The check valve has the advantages of good sealing performance, corrosion resistance, safety and reliability and long service life, and can carry out real-time adjustment according to flow rate of mediums.

Description

Lift check valve
Technical field
The utility model relates to a kind of valve, relates in particular to the safety check 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 purpose of this utility model is to provide a kind of novel structure, and is corrosion-resistant, can carry out real-time regulated according to the flow of medium, easy to operate, the Lift check valve of long service life.
The technical scheme in the invention for solving the technical problem is: a kind of Lift check valve, it comprises valve body, valve gap, flap, difference is, above-mentioned flap cross section is down T-shape, be equipped with guiding groove on the above-mentioned valve gap, the top of above-mentioned flap places in the above-mentioned guiding groove and with guiding groove and matches.
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 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.
Above-mentioned anticorrosive coat is fluoroplastic.
The utility model compared with prior art has following advantage:
1, the internal surface of the valve body of this Lift check valve, valve gap and terminal area all are covered with anticorrosive coat, and the anticorrosive coat fixation comes off, corrosion resistance and good, long service life.
2, the anticorrosive coat of this Lift check valve is teflon, and is corrosion-resistant, not yielding, good seal performance, long service life.
3, this Lift 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 the utility model Lift check valve.
Embodiment
Below in conjunction with accompanying drawing the utility model Lift check valve is further described.
As shown in Figure 1, a kind of Lift check valve, it comprises valve body 1, valve gap 2, flap 3, difference is, above-mentioned flap 3 cross sections are down T-shape, are equipped with guiding groove 21 on the above-mentioned valve gap 2, and the top of above-mentioned flap 3 places in the above-mentioned guiding groove 21 and with guiding groove 21 and matches; 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 of above-mentioned valve body 1, valve gap 2 and terminal area all are equipped with groove 51,52, and above-mentioned anticorrosive coat 41,42 infiltrates respectively in the groove 51,52; The width of rebate of above-mentioned groove 51,52 is not more than the bottom land width; Above-mentioned anticorrosive coat 41,42,43 is fluoroplastic.
During use, valve body 1 level is installed in the pipeline, and when media flow, flap 3 is to top offset, and valve open when media flow stops, relying on the deadweight of flap 3, to bottom offset, and valve closing.

Claims (2)

1, a kind of Lift check valve, it comprises valve body, valve gap, flap, it is characterized in that: above-mentioned flap cross section is down T-shape, is equipped with guiding groove on the above-mentioned valve gap, and the top of above-mentioned flap places in the above-mentioned guiding groove and with guiding groove and matches.
2, Lift 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 is covered with anticorrosive coat.
CNU2007200431794U 2007-08-13 2007-08-13 Lifting check valve Expired - Lifetime CN201152383Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200431794U CN201152383Y (en) 2007-08-13 2007-08-13 Lifting check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200431794U CN201152383Y (en) 2007-08-13 2007-08-13 Lifting check valve

Publications (1)

Publication Number Publication Date
CN201152383Y true CN201152383Y (en) 2008-11-19

Family

ID=40128060

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200431794U Expired - Lifetime CN201152383Y (en) 2007-08-13 2007-08-13 Lifting check valve

Country Status (1)

Country Link
CN (1) CN201152383Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109386642A (en) * 2017-08-10 2019-02-26 艾福迈精密部件公司 Valve and valve gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109386642A (en) * 2017-08-10 2019-02-26 艾福迈精密部件公司 Valve and valve gear

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20081119

CX01 Expiry of patent term