CN212107004U - Automatic pneumatic high-pressure hard sealing ball valve - Google Patents
Automatic pneumatic high-pressure hard sealing ball valve Download PDFInfo
- Publication number
- CN212107004U CN212107004U CN202020421083.2U CN202020421083U CN212107004U CN 212107004 U CN212107004 U CN 212107004U CN 202020421083 U CN202020421083 U CN 202020421083U CN 212107004 U CN212107004 U CN 212107004U
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- ball
- valve
- seat
- valve rod
- ball body
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- Expired - Fee Related
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Abstract
The utility model relates to the technical field of valve production, in particular to an automatic pneumatic high-pressure hard sealing ball valve, which comprises a ball body, a middle body respectively arranged at the upper side and the lower side of the ball body, a left body and a right body respectively arranged at the peripheral sides of the ball body, wherein the middle body is spliced and fixed with the left body and the right body, a gap interval is left between the middle body and the ball body, the upper end side and the lower end side of the ball body are respectively sleeved with a uncovered valve seat, the ball body is connected with the left body and the right body through the uncovered valve seat, a spring is arranged between the left body and the right body and the uncovered valve seat so that the uncovered valve seat is abutted against the ball body, the ball body is provided with a full-diameter pipeline which extends to the left body and the right body to form a straight pipeline, the upper end and the lower end of the ball body are respectively provided with an upper valve rod and a lower, the ball valve has the advantages of small fluid resistance, compact structure, easy operation and corrosion resistance.
Description
Technical Field
The utility model relates to a valve production technical field, concretely relates to automatic pneumatic high pressure ball valve sealed firmly.
Background
In the fields of thermal power plants, petrochemical systems and coal chemical industry, the temperature is over 200 ℃, or in media such as high-viscosity fluid, mixed fluid with dust and solid particles, fluid with strong corrosion and the like, the selection of a valve is very important. At present, ball valves are common valves for industrial fluid media, however, the existing ball valves still have the defects that: (1) the torque inside the valve is large, so that the ball valve is inconvenient to open or close and can be used for a long time, and the valve rod can be damaged; (2) the pressure of the fluid medium can be damaged due to the fact that the space of a valve flow channel is not optimized; (3 if the valve is used for a long time, the medium corrodes the valve, and the service life of the valve is shortened.
Disclosure of Invention
There is above-mentioned technical problem to prior art, the utility model provides a little, compact structure, the automatic pneumatic high pressure ball valve sealed firmly of easy operation, corrosion-resistant of fluid resistance.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an automatic change pneumatic high pressure ball valve sealed firmly, includes the spheroid, locate respectively the spheroid the middle part of downside, locate respectively the body about the spheroid week, the middle part with about the body concatenation is fixed, the middle part with leave the space interval between the spheroid, the upper and lower distolateral cover of spheroid is equipped with uncovered disk seat respectively, the spheroid passes through uncovered disk seat with about the body is connected, and about the body with be equipped with the spring between the uncovered disk seat so that uncovered disk seat supports to the spheroid, the spheroid has seted up full latus rectum pipeline, full latus rectum pipeline extends to about the body is in order to form straight tube way, the upper and lower end of spheroid is equipped with upper valve rod and lower valve rod respectively, the one end of lower valve rod with be located the middle part fixed connection of below, the other end with the lower extreme of spheroid rotates and is connected, the one end of upper valve rod with the upper end rigid coupling of spheroid, the other end of the ball passes through the middle body positioned above the ball seat and is connected with a pneumatic actuator, the pneumatic actuator drives the ball body to rotate so as to enable the ball valve to be in an open or closed state, and the surfaces of the ball body and the valve seat are precisely ground surfaces plated with hard chrome.
Wherein, the week side of disk seat encloses and is equipped with the disk seat brace ring, and the upper end of this disk seat brace ring outwards extends in order to form the section of extending, and the tip inwards extends in order to form directional the section of extending of disk seat, extend in the section with the disk seat sealing ring has been inlayed between the disk seat, the spring is installed extend the section with control the vacancy department that forms between the body.
The spring is a clamping spring, and the clamping spring clamps the valve seat support ring so as to enable the valve seat to abut against the ball body.
The lower valve rod is sleeved with a lower shaft sleeve, and the upper valve rod is sleeved with a flat key.
The lower valve rod seat is fixed on the middle body below the ball body to prevent the lower valve body from moving forwards.
Wherein, go up the valve rod and be located the week side in the spheroid outside is equipped with the extension support, the support outside includes the fin.
The utility model has the advantages that:
the ball valve adopts a full-diameter design, the fully-opened ball valve is a straight pipeline, the resistance of the fully-opened ball valve to a medium is very small, and the medium passing through the valve body hardly has pressure loss; the valve seat is designed without a valve seat cover, so that dead angles which are easy to block between the valve seat and the ball body are avoided, and the valve seat is prevented from being blocked; the ball body is supported by the upper valve rod and the lower valve rod, so that the torque of the ball body during rotation is reduced, and the condition that the valve rod is seized after the ball valve is used for a long time is avoided; the surfaces of the ball body and the valve seat are precisely ground surfaces plated with hard chromium, the hard chromium isolates the sealing surface of the ball body and the valve seat from a medium, and the medium cannot corrode the sealing surface of the ball body and the valve seat when passing through the medium; the ball valve has the advantages of compact integral structure, small volume and light weight, and is suitable for large-scale production and application.
Drawings
Fig. 1 is a schematic cross-sectional view of an automatic pneumatic high-pressure hard-sealing ball valve of the present invention.
Reference numerals:
a sphere 1; a middle body 2; left and right bodies 3; the gap spacing is 4; a capless valve seat 5; a cartridge 6; a full bore pipe 7; an upper valve stem 8; a lower valve stem 9; a pneumatic actuator 10; a valve seat support ring 11; a valve seat seal ring 12; a lower shaft sleeve 13; a flat key 14; a lower stem seat 15; an extension bracket 16; and a heat sink 17.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and accompanying drawings.
The automatic pneumatic high-pressure hard sealing ball valve of the embodiment is shown in figure 1 and comprises a ball body 1, a middle body 2 arranged on the upper side and the lower side of the ball body 1, a left body 3 and a right body 3 arranged on the peripheral side of the ball body 1, wherein the middle body 2 is spliced and fixed with the left body 3 and the right body 3 to form a shell for protecting the ball body 1, and a gap interval 4 is reserved between the middle body 2 and the ball body 1 so that the ball body 1 can rotate. The upper end side and the lower end side of the ball body 1 are respectively sleeved with a uncovered valve seat 5, the ball body 1 is connected with the left body 3 and the right body 3 through the uncovered valve seat 5, the special uncovered valve seat cover type design avoids dead angles which are easy to block between the valve seat 5 and the ball body 1, the blocking of the valve seat 5 is avoided, a spring, preferably a blocking spring 6, is arranged between the left body 3 and the right body 3 and the uncovered valve seat 5, the blocking spring 6 enables the uncovered valve seat 5 to abut against the ball body 1, namely, when the valve seat 5 is sealed and provided with pretightening force, the torque required for driving the ball valve is greatly reduced, and the valve seat 5 with the pretightening force can also provide good sealing for the ball valve under smaller pressure difference.
The ball body 1 is provided with a full-bore pipeline 7, the full-bore pipeline 7 extends to the left body 3 and the right body 3 to form a straight pipeline, and the full-open ball valve is a section of straight pipeline, so that the resistance of the valve body to a medium is very small, and the medium passing through the valve body hardly has pressure loss. The upper and lower end of spheroid 1 is equipped with valve rod 8 and lower valve rod 9 respectively, the one end of lower valve rod 9 with well body 2 fixed connection who is located the below, the other end with the lower extreme of spheroid 1 rotates and is connected, the one end of going up valve rod 8 with the upper end rigid coupling of spheroid 1, the other end pass the well body 2 that is located the top and be connected with pneumatic actuator 10, pneumatic actuator 10 drive spheroid 1 rotates so that the ball valve forms and opens or the closed condition, and wherein, upper and lower double-stem double-shaft holds fixes spheroid 1, has higher stability, has alleviateed the moment of torsion, has avoided the ball valve to use for a long time, and the valve rod is stung. The surfaces of the ball body 1 and the valve seat are hard chromium plated precision grinding surfaces, so that the hardness, the wear resistance and the corrosion resistance of a sealing surface are improved.
In this embodiment, the periphery of the valve seat is provided with a valve seat support ring 11, the upper end of the valve seat support ring 11 extends outwards to form an extension section, the lower end extends inwards to form a direction towards the extension section of the valve seat, a valve seat sealing ring 12 is embedded between the extension section and the valve seat, and the cartridge is installed at a vacancy formed between the extension section and the left and right bodies 3, so that the cartridge 6 can better clamp the valve seat 5, and the valve seat is abutted to the ball 1.
In this embodiment, a lower bushing 13 is sleeved on a portion of the lower valve rod 9 located in the ball body 1, and a flat key 14 is sleeved on a portion of the upper valve rod 8 located in the ball body 1, so that the connection stability of the upper valve rod and the lower valve rod to the ball body 1 is improved.
In this embodiment, the outer end of the lower valve body is provided with a lower stem seat 15, and the lower stem seat 15 is fixed to the middle body 2 below the ball 1 to prevent the lower valve body from moving forward.
In this embodiment, the upper valve rod 8 is provided with an extension bracket 16 on the outer side of the ball 1, and the bracket includes a heat sink 17 on the outside, so that the valve rod is protected, and the heat dissipation problem can be solved.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. An automatic pneumatic high-pressure hard sealing ball valve is characterized in that: the ball body is spliced and fixed with the left body and the right body, a gap interval is reserved between the middle body and the ball body, the upper end side and the lower end side of the ball body are respectively sleeved with a uncovered valve seat, the ball body is connected with the left body and the right body through the uncovered valve seat, a spring is arranged between the left body and the right body and between the left body and the uncovered valve seat so that the uncovered valve seat is abutted against the ball body, the ball body is provided with a full-bore pipeline which extends to the left body and the right body to form a straight pipeline, the upper end and the lower end of the ball body are respectively provided with an upper valve rod and a lower valve rod, one end of the lower valve rod is fixedly connected with the middle body below, the other end of the lower valve rod is rotatably connected with the lower end of the ball body, one end of the upper valve rod is fixedly connected with the upper end of the ball body, and the other end of the upper valve rod penetrates, the pneumatic actuator drives the ball body to rotate so as to enable the ball valve to be in an opening or closing state, and the surfaces of the ball body and the valve seat are precisely ground surfaces plated with hard chrome.
2. An automated pneumatic high pressure hard seal ball valve as claimed in claim 1, wherein: the week of disk seat encloses and is equipped with the disk seat brace ring all around, and the upper end of this disk seat brace ring outwards extends in order to form the section of extending, and the tip inwards extends in order to form directional the section of extending of disk seat, extend in the section with the disk seat sealing ring has been inlayed between the disk seat, the spring is installed extend the section with control the vacancy department that forms between the body.
3. An automated pneumatic high pressure hard seal ball valve as claimed in claim 2, wherein: the spring is a clamping spring, and the clamping spring clamps the valve seat support ring so as to enable the valve seat to abut against the ball body.
4. An automated pneumatic high pressure hard seal ball valve as claimed in claim 1, wherein: still include valve body down, the valve rod is located down part cover in the spheroid is equipped with lower axle sleeve, it is located to go up the valve rod part cover in the spheroid is equipped with the parallel key.
5. An automated pneumatic high pressure hard seal ball valve as claimed in claim 4, wherein: the outer end part of the lower valve body is provided with a lower valve rod seat which is fixed on the middle body below the ball body to prevent the lower valve body from moving forwards.
6. An automated pneumatic high pressure hard seal ball valve as claimed in claim 1, wherein: the upper valve rod is located the week side in the spheroid outside is equipped with the extension support, the support outside includes the fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421083.2U CN212107004U (en) | 2020-03-28 | 2020-03-28 | Automatic pneumatic high-pressure hard sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020421083.2U CN212107004U (en) | 2020-03-28 | 2020-03-28 | Automatic pneumatic high-pressure hard sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212107004U true CN212107004U (en) | 2020-12-08 |
Family
ID=73636692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020421083.2U Expired - Fee Related CN212107004U (en) | 2020-03-28 | 2020-03-28 | Automatic pneumatic high-pressure hard sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212107004U (en) |
-
2020
- 2020-03-28 CN CN202020421083.2U patent/CN212107004U/en not_active Expired - Fee Related
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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: 20201208 |