CN208364837U - Valve for chemical industry - Google Patents
Valve for chemical industry Download PDFInfo
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- CN208364837U CN208364837U CN201820804906.2U CN201820804906U CN208364837U CN 208364837 U CN208364837 U CN 208364837U CN 201820804906 U CN201820804906 U CN 201820804906U CN 208364837 U CN208364837 U CN 208364837U
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- valve
- sphere
- chemical industry
- guide rod
- valve body
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Abstract
The utility model provides a kind of valve for chemical industry, the valve for chemical industry includes the valve body for being formed with cavity, it is within the cavity, with flow-guiding channel, the sphere that can be rotated about axis and valve body both ends is made to be turned on or off, and be set between valve body and sphere, face contact is constituted with sphere and forms the valve component contacted.Wherein, valve component includes being flush-mounted in the intracorporal valve cup ring of valve, the gasket of ring valve seat ring circumference, and relative to gasket, guide rod positioned at the valve cup ring other side, guide rod is arranged in one end of the through-hole of perforation valve body, has screw plug in the other end closure of through-hole, and elastic component is equipped between screw plug and guide rod.The valve for chemical industry of the utility model after gasket is worn because of the friction of sphere, can compensate gasket by screwing in screw plug, it is thus possible to improve the service life of valve, have preferable practicability.
Description
Technical field
The utility model relates to valve technology field more particularly to a kind of valve for chemical industry.
Background technique
In chemical field, it is often necessary to convey the liquid such as high temperature, high pressure, inflammable, explosive, toxic or gas, ball valve conduct
Simple, small in size, high reliablity the valve of structure is more commonly used.Common ball valve includes valve body, valve seat, sphere and valve rod.Ball
The opening and closing of valve is to be realized by sphere in the intracorporal rotation of valve, when the channel of sphere and the inlet and outlet of valve body to it is corresponding when ball valve
It opens；When the channel of sphere is vertical with the inlet and outlet of valve body, valve body is closed.When valve body is closed, need through valve seat and ball
Contacting and guaranteeing sealing effect between body.It is close in order to contact valve seat and sphere, usual way be in valve seat and
Spring is set between valve body.During being opened or closed due to ball valve, sphere and valve seat can be worn, and be made after long-time use
It is deteriorated at sealing performance.Currently, seal failure is the relatively common failure mode of ball valve between valve seat and sphere, ball valve is influenced
Service life.
Utility model content
In view of this, the utility model is directed to a kind of valve for chemical industry, Active Compensation can be carried out to seating position,
And there is preferable using effect.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of valve for chemical industry, the valve body including being formed with cavity are within the cavity, have flow-guiding channel and can be around axis turn
The dynamic and sphere that makes valve body both ends be turned on or off, and between the valve body and the sphere and constitute and supported with sphere
Connect the valve component of cooperation；
The valve component include be flush-mounted in the intracorporal valve cup ring of the valve, and be fixedly arranged on the valve cup ring side, with
The sphere constitutes the gasket of face contact, and relative to gasket, is equipped with guide rod in the other side of the valve cup ring；
The corresponding guide rod is equipped with the through-hole for penetrating through the valve body, the guide rod guiding sliding in the valve body
It is configured with internal screw thread in one end of the through-hole, and in the other end of the through-hole, and has internal thread one in the valve body
End seal is stifled screw plug, and elasticity abuts flexible part between the guide rod and the screw plug.
Further, in being installed with metal slide plate on the valve cup ring, the metal slide plate is connected to the sphere, and in
The screw plug is equipped with ground line close to external one end.
Further, the elastic component is spring.
Further, the guide rod is two be arranged symmetrically on the valve cup ring.
Further, the internal screw thread is NPT screw thread.
Further, the screw plug is made of copper.
Compared with the prior art, the utility model has the advantage that；
(1) guide rod is arranged in the valve for chemical industry of the utility model on valve cup ring, and is arranged between guide rod and screw plug
Elastic component can be such that gasket contacts closely with sphere by the thrust of elastic component, and have good sealing performance, in gasket
After abrasion, screw plug can be made to screw in into threaded hole and compensate to the position of gasket, to extend the service life of valve, and
And adjustment screw plug can on-line tuning, without parking, do not influence to produce.
(2) electrostatic that sphere friction generates can be led by metal slide plate through valve cup ring, metal spring, screw plug and ground line
Out, there is preferable security performance.
(3) NPT screw thread has good sealing performance.
(4) use of copper screw plug can be reduced abrasion, improve service life.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the overall structure diagram of valve for chemical industry described in the utility model embodiment；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Description of symbols:
1- valve body, 11- first shell, 111- first passage, 112- mounting hole, 113- stepped hole, 114- through-hole, 12-
Two shells, 121- second channel, 2- sphere, 21- flow-guiding channel, 3- valve component, 31- valve cup ring, 32- gasket, 33- extend
Portion, 34- metal slide plate, 35- guide rod, 4- elastic component, 5- screw plug, 6- ground line.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The utility model relates to a kind of valve for chemical industry, as depicted in figs. 1 and 2, the valve for chemical industry substantially ball-valve structure,
It includes the valve body 1 for being formed with cavity, it is within the cavity, have flow-guiding channel 21,1 both ends of valve body can be made to lead around axis rotation
The sphere 2 that on-off is opened, and be set between valve body 1 and sphere 2, and constitute the valve component 3 contacted with sphere 2.
As shown in Figure 1, valve body 1 includes the first shell 11 and second shell 12 that spherical cavity is formed with because of fastening, and
First passage 111 and second channel 121 concentric after fastening are formed in first shell 11 and second shell 12.Sphere 2
External force can be accepted and be rotated in the spherical cavity, when flow-guiding channel 21 turn to it is as shown in Figure 1 with first passage 111 and
When two channels 121 are parallel, the medium for flowing into first passage 111 can flow into second channel 121 by flow-guiding channel 21, at this time should
Valve opening；When flow-guiding channel 21 is turned to first passage 111 and vertical second channel 121, first passage 111 is flowed into
Medium is stopped by sphere 2 and cannot flow into second channel 121, and the valve is closed at this time.Sphere 2 in the intracorporal installation of shell, and
Ball-valve structure in the prior art can be used in the rotation and sealing of sphere 2, and details are not described herein.
The setting of valve component 3 can make to keep sealing between valve body 1 and sphere 2, so that medium can only be from flow-guiding channel 21
Circulation is stopped by sphere 2.Valve is mounted between first shell 11 and sphere 2 and between second shell 12 and sphere 2
Holder assembly 3, and mounting means is identical, is situated between by taking the valve component 3 between first shell 11 and sphere 2 as an example to it in the present embodiment
It continues, and the valve component 3 between second shell 12 and sphere 2 is identical with this, details are not described herein.
As depicted in figs. 1 and 2, the mounting hole that diameter is greater than first passage 111 is equipped at sphere 2 in first shell 11
112, arranged concentric has valve cup ring 31 in the mounting hole 112, which constitutes the clearance fit with mounting hole 112, than
If tolerance range is H6/g5 grades.So that the valve cup ring 31 has a certain amount of axial sliding.In addition to valve cup ring 31, valve component 3
Further include 31 circumference of ring valve seat ring, constitute face contact with sphere 2, and forms the gasket 32 contacted, and opposite
In gasket 32, in several, the guide rod 35 that ring valve seat ring 31 is uniformly distributed that 31 other side of valve cup ring is equipped with.
Gasket 32 constitutes the sealing between valve body 1 and sphere 2, since the valve is likely to be used for needing often opening and closing
Place, sphere 2 can relatively rotate frequent occurrence with gasket 32.If gasket 32 and sphere 2 are rigid contact, work as contact force
When excessive, it is difficult to may cause unlatching, and the abrasion of gasket 32 can also aggravate, and influence the service life of valve；Work as sealing
When pad 32 and 2 contact force of sphere are too small, the sealing performance of valve is poor, is not available.
For this purpose, in the present embodiment, in guide rod 35 in the flexible part 4 of one end of gasket 32 abutting, the present embodiment,
The elastic component 4 is spring, and certainly, other than springs, which can also be disc spring.The setting of spring can make gasket 32 and ball
It is Elastic Contact between body 2.By the thrust of pre-set springs, so that can be contacted between gasket 32 and sphere 2 closely, have
Good sealing performance, and rapid wear can be prevented, influence service life.In the present embodiment, guide rod 35 are arranged symmetrically in
Two on valve cup ring 31, it is of course also possible to position three or four.Two guide rods 35 are set, can be met the requirements, and can
A possibility that reducing processing cost, while leakage can be reduced.
Despite the provision of spring, after long-time use, when the abrasion between sphere 2 and gasket 32 to a certain extent after,
The sealing performance of valve can be still reduced, until valve invalidation, replaces gasket at this time and be inconvenient.For this purpose, in the present embodiment, such as
Shown in Fig. 2, it is equipped with diameter in first shell 11 and is less than mounting hole 112, and is greater than the stepped hole 113 of first passage 111, and
At the ladder of the connection of mounting hole 112 and stepped hole 113, it is equipped with corresponding guide rod 35 and arranges, and penetrate through the through-hole 114 of valve body 1.
Above-mentioned guide rod 35 and spring are threaded through in the through-hole 114.It is configured with internal screw thread in the other end of the through-hole 114, and at this
Blocking at internal screw thread has screw plug 5, which abuts against close to one end of internal one end and spring.It preferably, is guarantee sealing
Performance, internal screw thread are NPT screw thread, and screw plug 5 is then adapted to the NPT screw thread.Further, the material of the screw plug 5 be copper, with have compared with
Good fiting effect.
It, can be by certain by the inside precession of screw plug 5 after gasket 32 is worn up to a certain degree by above-mentioned setting
Amount, i.e., spring moves a certain amount relative to initial position in the axial direction, gives gasket 32 certain nose balance.Make gasket
32 can still contact closely upon wear with sphere 2, and have good sealing performance.Therefore valve can be dramatically increased uses the longevity
Life.And the screw plug 5 is adjusted, without stopping production, does not need to remove on valve yet, there is preferable practicability.
To prevent medium from revealing from through-hole 114, extend as shown in Figure 1, being equipped on valve cup ring 31 to stepped hole 113
, extension 33 annular in shape.And in the position that the extension 33 is contacted with stepped hole 113 and valve cup ring 31 and mounting hole
The position of 112 contacts is provided with O-ring seal.It can be met by the setting of O-ring seal at two and the setting of NPT screw thread
The sealing demand of valve.
Due to the product that in chemical field, medium is usually inflammable, explosive.And sphere 2 is to seal the process of electricity friction
In may generate electrostatic, cause danger, for this purpose, in the present embodiment, be equipped on valve cup ring 31 to sphere 2 and extend, and and ball
The metal slide plate 34 that body 2 contacts is equipped with ground line 6 in external one end of screw plug 5.And valve cup ring 31, guide rod 35 and spring
Material be metal.Electrostatic on sphere 2 and on valve body 1 as a result, can be through valve cup ring 31, guide rod 35, spring, screw plug 5
And be grounded 6 and import underground, to prevent the danger generated by electrostatic.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of valve for chemical industry, the valve body including being formed with cavity is within the cavity, have flow-guiding channel and can be rotated about axis
And the sphere for making valve body both ends be turned on or off, and be set between the valve body and the sphere and constitute and abutted with sphere
The valve component of cooperation；It is characterized by:
The valve component include be flush-mounted in the intracorporal valve cup ring of the valve, and be fixedly arranged on the valve cup ring side, with it is described
Sphere constitutes the gasket of face contact, and relative to gasket, is equipped with guide rod in the other side of the valve cup ring；
The corresponding guide rod, the through-hole for penetrating through the valve body is equipped in the valve body, and the guide rod guiding slides on institute
One end of through-hole is stated, and is configured with internal screw thread in the other end of the through-hole, and have one end seal of internal thread in the valve body
It is stifled to have screw plug, and elasticity abuts flexible part between the guide rod and the screw plug.
2. valve for chemical industry according to claim 1, it is characterised in that: in being installed with metal slide plate, institute on the valve cup ring
It states metal slide plate and is connected to the sphere, and be equipped with ground line close to external one end in the screw plug.
3. valve for chemical industry according to claim 1, it is characterised in that: the elastic component is spring.
4. valve for chemical industry according to claim 1, it is characterised in that: the guide rod is to be arranged symmetrically in the valve cup ring
On two.
5. valve for chemical industry according to claim 1, it is characterised in that: the internal screw thread is NPT screw thread.
6. valve for chemical industry according to claim 1, it is characterised in that: the screw plug is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804906.2U CN208364837U (en) | 2018-05-28 | 2018-05-28 | Valve for chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820804906.2U CN208364837U (en) | 2018-05-28 | 2018-05-28 | Valve for chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364837U true CN208364837U (en) | 2019-01-11 |
Family
ID=64930168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820804906.2U Active CN208364837U (en) | 2018-05-28 | 2018-05-28 | Valve for chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178265A (en) * | 2020-09-24 | 2021-01-05 | 安徽绿环泵业有限公司 | Clutch type plugging valve |
-
2018
- 2018-05-28 CN CN201820804906.2U patent/CN208364837U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178265A (en) * | 2020-09-24 | 2021-01-05 | 安徽绿环泵业有限公司 | Clutch type plugging valve |
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