CN210770361U

CN210770361U - Installation high stability governing valve

Info

Publication number: CN210770361U
Application number: CN201921167220.8U
Authority: CN
Inventors: 董娜
Original assignee: Linke Fluid Equipment Dalian Co Ltd
Current assignee: Linke Fluid Equipment Dalian Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-06-16
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses an installation high stability governing valve, which comprises a valve body, a valve core, a support, the pressure membrane room, valve rod and ball valve, the both ends of valve body are divided and are equipped with material import and material export, material import and material export intercommunication case, the ball valve rotates and installs in the valve core, the marginal periphery rigid coupling connecting rod of ball valve, the connecting rod rotates the cover and establishes in the connecting hole of rotation valve rod bottom, the rotation valve rod top is rotated through the pivot and is connected the connecting block, connecting block rigid coupling valve rod, the valve rod is kept away from the one end of connecting block and is connected the diaphragm, the diaphragm sets up in the pressure membrane room, and aim at the pressure signal entry that the pressure membrane room top center was seted up, install stroke scale spare in the support, be provided; the utility model discloses can be different from traditional pneumatic control valve governing valve, need not to reciprocate the ball valve, avoid the movement route to have the deviation slightly, influence the problem of the normal work of valve body, its stability is higher.

Description

Installation high stability governing valve

Technical Field

The utility model relates to a governing valve technical field specifically is an installation high stability governing valve.

Background

In the automatic control of modern plants, control valves play a very important role, and the production of these plants depends on the correct distribution and control of the flowing medium. These controls, whether energy exchange, pressure reduction, or simple vessel charging, require some final control element to accomplish. It is operated by power to change the flow of fluid, and generally consists of an actuating mechanism and a valve. If the power is used by the matched actuating mechanism, the regulating valve can be divided into a pneumatic regulating valve, an electric regulating valve and a hydraulic regulating valve, and in addition, the regulating valve is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to the functions and the characteristics of the regulating valve.

Current pneumatic control valve, when the fluidic pressure in back before the governing valve, the valve rod drives case sprue upwards or downstream, cause case sprue and valve area of contact to be changed, reach the effect of governing valve gate passageway size, thereby realize the purpose of control material velocity of flow, case sprue is the swing joint valve at this in-process, consequently, there is strict requirement to the direction of motion of valve rod, in case valve rod direction of motion has the deviation slightly, make the unable normal use of governing valve, to its job stabilization nature not high, for this reason, the utility model provides a governing valve that high stability can have, in order to solve the problem that the aforesaid exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an installation high stability governing valve to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an installation high stability governing valve, includes valve body, case, support, pressure membrane chamber, valve rod and ball valve, the both ends branch of valve body is equipped with material import and material export, material import and material export intercommunication case, the ball valve rotates and installs in the valve core, the peripheral rigid coupling connecting rod in edge of ball valve, connecting rod rotate the cover and establish in the connecting hole of rotating the valve rod bottom, rotate the valve rod top and rotate through the pivot and connect the connecting block, connecting block rigid coupling valve rod, the diaphragm is connected to the one end that the connecting block was kept away from to the valve rod, and the diaphragm setting is in the pressure membrane chamber to aim at the pressure signal entry that pressure membrane chamber top center was seted up, install stroke scale spare in the support, be provided with the stroke pointer of activity butt.

As an optimal technical scheme, the center of ball valve runs through and is equipped with material passageway, the rotatory material import and the material export of intercommunication of material passageway.

As an optimized technical scheme of the utility model, the junction of support and valve body is equipped with the cavity that supplies the motion of rotating valve rod.

As a preferred technical scheme, the locating part is installed at the top of support, the valve rod passes the spacing hole that the locating part middle part was seted up and does vertical migration from top to bottom in the locating part.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to an installation high stability governing valve, through the ball valve that sets up, the connecting rod, the rotating valve rod, the pivot, the connecting block, the valve rod, diaphragm and pressure membrane room, when adjusting the size of material passageway, control element presses the diaphragm downwards through the inward input pressure of the pressure signal entry that pressure membrane room top center was seted up, causes valve rod, connecting block synchronous downstream, meanwhile, the rotating valve rod is arc motion under the effect of pivot, drives the ball valve at the case internal rotation, thereby realizes the purpose of adjusting the size of material passageway; because the ball valve is located the valve core all the time at rotatory in-process, be different from traditional pneumatic control valve, adjust the material passageway size, need vertically reciprocate the case sprue, the area of contact between control case sprue and the case to reach and avoid the ball valve to break away from the case, lead to the movement path to have the deviation slightly, influence the problem of valve body normal work, stability is higher.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the utility model discloses the ball valve rotates valve rod, connecting block and valve rod connection diagram.

In the figure: 1. a valve body; 2. a valve core; 3. a support; 4. a pressure membrane chamber; 5. a valve stem; 6. a ball valve; 7. a material inlet; 8. a material outlet; 9. a connecting rod; 10. rotating the valve stem; 11. a rotating shaft; 12. connecting blocks; 13. a limiting member; 14. a membrane; 15. a pressure signal inlet; 16. a stroke scale member; 17. a trip pointer; 18. a material channel; 19. a chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a regulating valve with high installation stability comprises a valve body 1, a valve core 2, a support 3, a pressure membrane chamber 4, a valve rod 5 and a ball valve 6, wherein a material inlet 7 and a material outlet 8 are respectively arranged at two ends of the valve body 1, the material inlet 7 and the material outlet 8 are communicated with the valve core 2, the ball valve 6 is rotatably installed in the valve core 2, a connecting rod 9 is fixedly connected to the periphery of the edge of the ball valve 6, the connecting rod 9 is rotatably sleeved in a connecting hole at the bottom of the rotating valve rod 10, the top of the rotating valve rod 10 is rotatably connected with a connecting block 12 through a rotating shaft 11, the connecting block 12 is fixedly connected with the valve rod 5, one end of the valve rod 5, far away from the connecting block 12, is connected with a diaphragm 14, the diaphragm 14 is arranged in the pressure membrane chamber 4 and aims at a pressure signal inlet 15 arranged at the center of the top of the pressure, the device has the function of prompting the position of the scale on the stroke scale member 16 pointed by the stroke pointer 17 and the size of a communication channel between the ball valve 6 and the material inlet 7 and the material outlet 8.

Further, a material channel 18 penetrates through the center of the ball valve 6, and the material channel 18 is rotatably communicated with the material inlet 7 and the material outlet 8.

Further, the junction of the bracket 3 and the valve body 1 is provided with a chamber 19 for movement of the rotary valve stem 10.

Furthermore, a limiting piece 13 is installed at the top of the support 3, and the valve rod 5 passes through a limiting hole formed in the middle of the limiting piece 13 and vertically moves in the limiting piece 13, so that the limiting function is achieved, and the linear motion of the valve rod 5 is kept.

The utility model relates to an installation high stability governing valve, through the ball valve 6 that sets up, connecting rod 9, the rotary valve rod 10, pivot 11, connecting block 12, valve rod 5, diaphragm 14 and pressure membrane chamber 4, when adjusting the size of material passageway, control element passes through the pressure signal entry 15 that 4 top centers of pressure membrane chamber set up and inwards inputs pressure, press diaphragm 14 downwards, cause valve rod 5, connecting block 12 to move downwards in step, meanwhile, rotary valve rod 10 is arc motion under the effect of pivot 11, drive ball valve 6 at 2 internal rotations of case, thereby realize the purpose of adjusting the size of material passageway; because ball valve 6 is located case 2 all the time at rotatory in-process, be different from traditional pneumatic control valve, adjust the material passageway size, need reciprocate perpendicularly case sprue, the area of contact between control case sprue and the case to reach and avoid the ball valve to break away from the case, lead to the movement path to have the deviation slightly, influence the problem of valve body normal work, stability is higher.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The adjusting valve with high installation stability is characterized by comprising a valve body (1), a valve core (2), a support (3), a pressure membrane chamber (4), a valve rod (5) and a ball valve (6), wherein a material inlet (7) and a material outlet (8) are formed in two ends of the valve body (1), the material inlet (7) and the material outlet (8) are communicated with the valve core (2), the ball valve (6) is rotatably installed in the valve core (2), a connecting rod (9) is fixedly connected to the periphery of the edge of the ball valve (6), the connecting rod (9) is rotatably sleeved in a connecting hole in the bottom of the rotating valve rod (10), the top of the rotating valve rod (10) is rotatably connected with a connecting block (12) through a rotating shaft (11), the connecting block (12) is fixedly connected with the valve rod (5), one end, far away from the connecting block (12), of the valve rod (5) is connected with a membrane (, and aims at a pressure signal inlet (15) formed in the center of the top of the pressure membrane chamber (4), a stroke scale part (16) is installed in the support (3), and a stroke pointer (17) movably abutted against the stroke scale part (16) is arranged on the connecting block (12).

2. An installation high stability regulating valve according to claim 1, characterized in that a material passage (18) is arranged through the center of the ball valve (6), and the material passage (18) is rotatably communicated with the material inlet (7) and the material outlet (8).

3. A valve with high mounting stability according to claim 1, characterized in that the connection between the bracket (3) and the valve body (1) is provided with a chamber (19) for the movement of the rotary valve rod (10).

4. The regulating valve with high installation stability according to claim 1, wherein a limiting piece (13) is installed at the top of the bracket (3), and the valve rod (5) passes through a limiting hole formed in the middle of the limiting piece (13) and vertically moves up and down in the limiting piece (13).