CN206889741U - Resistance to strong rotten fluoroplastics full-lining diaphragm valve - Google Patents
Resistance to strong rotten fluoroplastics full-lining diaphragm valve Download PDFInfo
- Publication number
- CN206889741U CN206889741U CN201720604986.2U CN201720604986U CN206889741U CN 206889741 U CN206889741 U CN 206889741U CN 201720604986 U CN201720604986 U CN 201720604986U CN 206889741 U CN206889741 U CN 206889741U
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- China
- Prior art keywords
- valve
- fluoroplastics
- cavity
- resistance
- diaphragm
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- 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.)
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Abstract
Resistance to strong rotten fluoroplastics full-lining diaphragm valve, is related to a kind of valve.Including valve body, the bonnet being installed on valve body, the valve rod being installed in bonnet, the handwheel for being connected to valve rod upper end, the flap for being connected to valve rod lower end and it is installed on the diaphragm between valve body and bonnet and being located at immediately below flap, it is characterised in that：Cavity is provided centrally with flap, the lower end of valve rod is extended downwardly in cavity, and space is left in the lower end of the valve rod and the bottom of cavity, is provided with annular flange on the valve rod in cavity, and the bottom of annular flange and cavity is provided with spring.Structure design as the utility model effectively extends the service life of diaphragm, so as to reduce the frequency of maintenance of diaphragm valve.
Description
Technical field
It the utility model is related to a kind of valve, specially a kind of resistance to strong rotten fluoroplastic all-liner barrier film for chemical industry
Valve.
Background technology
In the past, the valve of chemical industry for making chlorine and alkali industry, usually sealing property in general common valve.No matter common valve is from material
Material or structure do not possess the characteristics of special, and on the one hand the sealing property of this each sealing position of valve is bad, can not be very
Prevent dielectric leakage well；On the other hand under deep-etching, poisonous and hazardous process conditions, often poor sealing performance, is easily leaked,
Housing is easily perforated, and service life is short, it is impossible to meets the particular/special requirement of permanently effective conveying poisonous medium.
In addition, in order to reach the effect of sealing, diaphragm will have certain plasticity, and have quite hard simultaneously
Degree, namely the fragility of diaphragm is poor, is easy to crack in the case that stress is excessive in moment, influence its service life compared with
It is short.
Utility model content
The purpose of this utility model is to provide a kind of good seal performance, and securely and reliably, non-maintaining resistance to strong rotten fluoroplastics are complete
Lining diaphragm valve.
Realizing the technical scheme of above-mentioned purpose is：Resistance to strong rotten fluoroplastics full-lining diaphragm valve, including valve body, be installed on valve body
Bonnet, be installed in bonnet valve rod, be connected to the handwheel of valve rod upper end, be connected to the flap of valve rod lower end and be installed on
Diaphragm between valve body and bonnet and immediately below flap, it is characterised in that：Cavity is provided centrally with flap, valve rod
Lower end is extended downwardly in cavity, and space is left in the lower end of the valve rod and the bottom of cavity, is set on the valve rod in cavity
There is an annular flange, the bottom of annular flange and cavity is provided with spring.
Further, at least two seal grooves, the bottom of the diaphragm are provided with the sealing surface of valve body to be respectively arranged with
The sealing coordinated with every seal groove is presented a theatrical performance as the last item on a programme.
Further, the depth that the thickness presented a theatrical performance as the last item on a programme is more than seal groove is sealed.
Further, the valve interior surface is provided with fluoroplastic layer, improves decay resistance of the present utility model.
Further, the inner surface of the valve body is provided with equally distributed groove, dissolved with the fluoroplastics with outside in groove
The fluoroplastics that layer is integrally formed, the width of the groove notch are not more than slot bottom width, ensured between fluoroplastic layer and valve body
It is reliably connected.
The beneficial effects of the utility model：
When the 1st, closing valve, valve rod extrusion spring, during spring is by compression, flap is just promoted downwards by valve rod
It is mobile, moved down so as to which diaphragm is also promoted, until diaphragm is attached on the sealing surface of valve body completely, so far fluid is complete
It is complete to block.Due to the buffering of spring, the part momentum of valve rod can be absorbed, the process to be deformed downwards in beginning so as to diaphragm
The time of suffered power is extended, and suffered instantaneous impulse is minimized, so crackle will not easily occur for diaphragm.This
The structure design of sample effectively extends the service life of diaphragm, so as to reduce the frequency of maintenance of diaphragm valve.
2nd, because the sealings that at least two pairs mutual cooperations are provided between diaphragm and the sealing surface of valve body are presented a theatrical performance as the last item on a programme and seal groove,
Therefore the contact surface of diaphragm and valve body is two-wire or multiline sealing face, can be presented a theatrical performance as the last item on a programme by multiple sealings and be applied to film to share flap
The pressure of piece, so as to extend the service life of diaphragm, and when wherein one sealing presents a theatrical performance as the last item on a programme impaired, other sealings are presented a theatrical performance as the last item on a programme still
The sealing effectiveness of valve can be ensured, do not interfere with the normal use of valve.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing in I portions in Fig. 1.
Embodiment
As shown in Figure 1, 2, the utility model includes valve body 1, the bonnet 2 being installed on valve body 1, is installed in bonnet 2
Valve rod 3, the handwheel 4 for being connected to the upper end of valve rod 3, the flap 5 for being connected to the lower end of valve rod 3 and it is installed between valve body 1 and bonnet 2
And cavity 5-1 is provided centrally with the diaphragm 6 of the underface of flap 5, flap 5, the lower end of valve rod 3 extends downwardly cavity 5-
In 1, and space is left in the lower end of valve rod 3 and cavity 5-1 bottom, and annular flange 5- is provided with the valve rod 3 in cavity 5-1
2, annular flange 5-2 and cavity 5-1 bottom are provided with spring 7.
As further improvement of this embodiment, two seal groove 1-1, the bottom of diaphragm 6 are provided with the sealing surface of valve body 1
Portion is respectively arranged with presents a theatrical performance as the last item on a programme 6-1 with every seal groove 1-1 sealing coordinated.
As further improvement of this embodiment, the thickness for sealing the 6-1 that presents a theatrical performance as the last item on a programme is more than seal groove 1-1 depth so that film
Linear contact lay is kept between the sealing surface of piece 6 and valve body 1, avoids face between diaphragm 6 and valve body 1 from contacting, causes to wear, influence to seal
Effect.
As further improvement of this embodiment, the inner surface of valve body 1 is provided with fluoroplastic layer 8, and the inner surface of valve body 1 is additionally provided with
Equally distributed groove 9, the width of the notch of groove 9 are not more than slot bottom width, dissolved with the structure of fluoroplastic layer 8 with outside in groove 9
Integral fluoroplastics.
Claims (6)
1. resistance to strong rotten fluoroplastics full-lining diaphragm valve, including valve body, be installed on valve body bonnet, be installed in bonnet valve rod,
The handwheel of valve rod upper end is connected to, the flap of valve rod lower end is connected to and is installed between valve body and bonnet and is located at flap just
The diaphragm of lower section, it is characterised in that：Cavity is provided centrally with flap, the lower end of valve rod is extended downwardly in cavity, and institute
State the lower end of valve rod and space is left in the bottom of cavity, annular flange, annular flange and cavity are provided with the valve rod in cavity
Bottom be provided with spring.
2. resistance to strong rotten fluoroplastics full-lining diaphragm valve according to claim 1, it is characterised in that：Set on the sealing surface of valve body
There are at least two seal grooves, the bottom of the diaphragm is respectively arranged with the sealing coordinated with every seal groove and presented a theatrical performance as the last item on a programme.
3. resistance to strong rotten fluoroplastics full-lining diaphragm valve according to claim 2, it is characterised in that：The thickness presented a theatrical performance as the last item on a programme is sealed to be more than
The depth of seal groove.
4. resistance to strong rotten fluoroplastics full-lining diaphragm valve according to claim 1, it is characterised in that：The valve interior surface is provided with
Fluoroplastic layer.
5. resistance to strong rotten fluoroplastics full-lining diaphragm valve according to claim 4, it is characterised in that：The inner surface of the valve body is set
There are equally distributed groove, the fluoroplastics being integrally formed in groove dissolved with the fluoroplastic layer with outside.
6. resistance to strong rotten fluoroplastics full-lining diaphragm valve according to claim 5, it is characterised in that：The width of the groove notch
No more than slot bottom width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604986.2U CN206889741U (en) | 2017-05-27 | 2017-05-27 | Resistance to strong rotten fluoroplastics full-lining diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720604986.2U CN206889741U (en) | 2017-05-27 | 2017-05-27 | Resistance to strong rotten fluoroplastics full-lining diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206889741U true CN206889741U (en) | 2018-01-16 |
Family
ID=61320569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720604986.2U Expired - Fee Related CN206889741U (en) | 2017-05-27 | 2017-05-27 | Resistance to strong rotten fluoroplastics full-lining diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206889741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869785A (en) * | 2018-08-06 | 2018-11-23 | 中国计量大学 | A kind of double diaphragm counterbalance valves |
| WO2023019979A1 (en) * | 2021-08-16 | 2023-02-23 | 北京航天石化技术装备工程有限公司 | Safety valve for low-temperature and low-pressure working condition |
-
2017
- 2017-05-27 CN CN201720604986.2U patent/CN206889741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869785A (en) * | 2018-08-06 | 2018-11-23 | 中国计量大学 | A kind of double diaphragm counterbalance valves |
| WO2023019979A1 (en) * | 2021-08-16 | 2023-02-23 | 北京航天石化技术装备工程有限公司 | Safety valve for low-temperature and low-pressure working condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20190527 |