CN214466115U

CN214466115U - Pneumatic regulating valve with driving mechanism arranged inside

Info

Publication number: CN214466115U
Application number: CN202120247356.0U
Authority: CN
Inventors: 刘生根
Original assignee: Kompite Fluid Control Technology Co ltd
Current assignee: Kompite Fluid Control Technology Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-22
Anticipated expiration: 2031-01-28

Abstract

The utility model relates to a set up actuating mechanism in inside pneumatic control valve, including valve body, disk seat, valve rod and valve clack, be provided with the medium channel who supplies the medium circulation on the valve body, the disk seat sets up inside the valve body, the valve clack sets up in the valve rod bottom, disk seat and valve clack constitute medium channel's closure, the valve rod passes valve body upper end and drives the valve clack along vertical movement, medium channel has the closure state and opens the state, the closure state offsets with the disk seat for the valve clack, medium channel is sealed by valve clack and disk seat, it separates mutually for valve clack and disk seat to open the state, valve body upper portion be provided with the seal chamber, the valve rod upper end extends to in the seal chamber and the valve rod top is provided with the piston with seal chamber looks adaptation, be provided with the actuating mechanism who drives the valve rod along vertical movement on the seal chamber. The utility model provides a set up actuating mechanism in inside pneumatic control valve.

Description

Pneumatic regulating valve with driving mechanism arranged inside

Technical Field

The utility model relates to a governing valve, concretely relates to set up actuating mechanism in inside pneumatic control valve.

Background

The pneumatic regulating valve is one of industrial process control instruments widely used by industrial enterprises of petroleum, chemical industry, electric power, metallurgy and the like, takes compressed gas as a power source, takes a cylinder as an actuator, drives a valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position retaining valve, a gas storage tank, a gas filter and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to complete the regulation of a pipeline medium.

At present, the pneumatic regulating valve can only be installed in a place with a large space, and in a place with a small space, the pneumatic regulating valve is difficult to correspondingly install due to the fact that a driving mechanism of the pneumatic regulating valve occupies a small space.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a set up actuating mechanism in inside pneumatic control valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: including valve body, disk seat, valve rod and valve clack, be provided with the medium channel who supplies the medium circulation on the valve body, the disk seat sets up inside the valve body, the valve clack sets up in the valve rod bottom, disk seat and valve clack constitute medium channel's closure, the valve rod passes the valve body upper end and drives the valve clack along vertical movement, medium channel has the closure state and opens the state, the closure state offsets for valve clack and disk seat, medium channel is sealed by valve clack and disk seat, the opening state is that valve clack and disk seat separate from each other, medium channel opens, valve body upper portion be provided with the seal chamber, the valve rod upper end extends to in the seal chamber and the valve rod top be provided with the piston of seal chamber looks adaptation, be provided with the actuating mechanism who drives the valve rod along vertical movement on the seal chamber.

Through adopting above-mentioned technical scheme, when the medium passageway needs to be opened, through actuating mechanism drive piston rebound, then drive valve rod rebound, finally drive valve clack and disk seat break away from each other, then make the medium passageway open, otherwise when closing the medium passageway, actuating mechanism can close, the piston passes through the gravity influence of self, lead to the valve rod to descend, make valve clack and disk seat offset, then close the medium passageway, accessible actuating mechanism is to the effect of piston, directly make the valve rod take place to remove, compare with conventional governing valve, practice thrift the space more, to installing to the convenience that the space is littleer.

The utility model discloses further set up to: the driving mechanism comprises an air pressure controller used for controlling the air pressure of the sealing chamber, an air pressure pipeline communicated with the air pressure controller is arranged on the sealing chamber, and a return spring is vertically arranged between the piston and the inner side of the sealing chamber.

Through adopting above-mentioned technical scheme, when needing the drive piston to remove, through air pressure controller, impress the air in the seal chamber, one side that the atmospheric pressure pipeline was located, press the piston to the opposite side, thereby make the piston drive valve rod remove, then opening and sealing of control medium passageway, and when not needing the piston to remove, air pressure controller stops when impressing the air in the seal chamber, under reset spring's effect, reset the piston to initial position, through the change of atmospheric pressure, the removal of control valve rod, make the removal of valve rod stable, the removal degree of size control valve rod through control atmospheric pressure, and then control medium passageway opening degree.

The utility model discloses further set up to: the air pressure pipeline is positioned below the piston and used for driving the piston to move upwards, the return spring is positioned above the piston and is always in a compressed state.

Through adopting above-mentioned technical scheme, when needing the drive piston to remove, pass through the atmospheric pressure pipeline with gas, impress in the sealed chamber, make the piston shift up, drive the valve rod and remove, finally open the medium passageway, and when needing to close the medium passageway, gas shifts out to the air pressure controller from the sealed chamber through the atmospheric pressure pipeline, under the dual effort of reset spring and piston self gravity, the valve rod moves down, the valve clack offsets with the disk seat, the contact of valve clack and disk seat can be inseparabler under this dual effort, and when the medium passageway is closed, need not provide power for valve clack and valve clack, but provide by reset spring's spring force and piston self gravity, reduce the waste of resource.

The utility model discloses further set up to: a moving block is arranged between the reset spring and the sealing chamber, an adjusting rod is vertically arranged at the upper end of the moving block, the adjusting rod extends to the outer side of the upper end of the sealing chamber, threads are arranged on the adjusting rod, and a nut for fixing the adjusting rod is arranged on the outer side of the sealing chamber.

Through adopting above-mentioned technical scheme, when discovering that valve clack and disk seat contact are inseparable or other needs adjust the position of valve rod, if dismantle whole adjusting valve and carry out corresponding processing and can bring not little trouble for operating personnel, and the position change through regulating lever and nut makes the movable block descend in the position of seal chamber, then make reset spring increase to the spring force of piston, finally make the effort reinforcing of valve clack to the disk seat, the contact of valve clack and disk seat is inseparabler, also accessible change the position of movable block reach the vertical change to the valve rod position.

The utility model discloses further set up to: the sealing chamber both sides set up and be provided with auxiliary stay frame respectively, auxiliary stay frame includes the fixed pipe with sealing chamber articulated, the inside guide slot that is provided with of fixed pipe, be provided with the carriage release lever that removes along the guide slot in the guide slot, be provided with supporting spring between carriage release lever bottom and the guide slot bottom, the other end that the carriage release lever is connected with supporting spring relatively is provided with backup pad and carriage release lever mutually perpendicular.

Through adopting above-mentioned technical scheme, when the installation governing valve, pull fixed pipe to vertical, place narrow and small space with the governing valve, say again fixed pipe and pull to the direction perpendicular with the valve rod looks, under supporting spring's effect, the carriage release lever looks both sides extend and offset with articles such as walls, and final completion is fixed, when the governing valve was installed in narrow and small space, accessible auxiliary stay frame played the auxiliary stay effect to the governing valve.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a partial enlarged view a of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, the utility model discloses a pneumatic control valve with a driving mechanism arranged inside, comprising a valve body 1, a valve seat 2, a valve rod 3 and a valve flap 4, wherein the valve body 1 is provided with a medium channel 5 for medium circulation, the valve seat 2 is arranged inside the valve body 1, the valve flap 4 is arranged at the bottom of the valve rod 3, the valve seat 2 and the valve flap 4 form the seal of the medium channel 5, the valve rod 3 passes through the upper end of the valve body 1 and drives the valve flap 4 to move vertically, the medium channel 5 has a closed state and an open state, the closed state is that the valve flap 4 is abutted against the valve seat 2, the medium channel 5 is closed by the valve flap 4 and the valve seat 2, the open state is that the valve flap 4 is separated from the valve seat 2, the medium channel 5 is opened, the upper part of the valve body 1 is provided with a sealing chamber 6, the upper end of the valve rod 3 extends into the sealing chamber 6 and the top end of the valve rod 3 is provided with a piston 61 matched with the sealing chamber 6, be provided with actuating mechanism 7 that drives valve rod 3 along vertical movement on the seal chamber 6, when needing to open medium passageway 5, drive piston 61 rebound through actuating mechanism 7, then drive valve rod 3 rebound, finally drive valve clack 4 and disk seat 2 and break away from each other, then make medium passageway 5 open, otherwise when closing medium passageway 5, actuating mechanism 7 can be closed, piston 61 is through the gravity influence of self, lead to valve rod 3 to descend, make valve clack 4 and disk seat 2 offset, then close medium passageway 5, accessible actuating mechanism 7 is to piston 61's effect, directly make valve rod 3 take place to remove, compare with conventional governing valve, save space more, to installing the convenience that the place is more little to the space.

The driving mechanism 7 comprises an air pressure controller for controlling the air pressure of the sealing chamber 6, an air pressure pipeline 71 communicated with the air pressure controller is arranged on the sealing chamber 6, a return spring 72 is vertically arranged between the piston 61 and the inner side of the sealing chamber 6, when the piston 61 is required to be driven to move, air is forced into the chamber 6, by means of the air pressure controller, on the side where the air pressure pipe 71 is located, pressing the piston 61 towards the other side, so that the piston 61 drives the valve rod 3 to move, and then controls the opening and closing of the medium channel 5, without the need for the piston 61 to move, the air pressure controller stops pressing air into the seal chamber 6, the piston 61 is reset to the initial position under the action of the reset spring 72, the movement of the valve rod 3 is controlled through the change of air pressure, the movement of the valve rod 3 is stabilized, the degree of movement of the valve rod 3 is controlled by controlling the magnitude of the air pressure, and the opening degree of the medium passage 5 is further controlled.

The pneumatic pipe 71 is located below the piston 61 and is used for driving the piston 61 to move upwards, the return spring 72 is located above the piston 61, the return spring 72 is always in a compressed state, and when the piston 61 needs to be driven to move, the gas is pressed into the sealing chamber 6 through the gas pressure pipeline 71, so that the piston 61 moves upwards to drive the valve rod 3 to move, finally the medium channel 5 is opened, when it is desired to close the medium passage 5, the gas is removed from the sealed chamber 6 through the gas pressure pipe 71 to the gas pressure controller, under the dual acting force of the reset spring 72 and the gravity of the piston 61, the valve rod 3 moves downwards, the valve clack 4 is propped against the valve seat 2, under the double acting force, the contact between the valve clack 4 and the valve seat 2 is more intimate, and when the medium passage 5 is closed, the valve clack 4 and the valve clack 4 do not need to be powered, but is provided by the spring force of the return spring 72 and the gravity of the piston 61, so that the waste of resources is reduced.

A moving block 81 is arranged between the return spring 72 and the sealing chamber 6, an adjusting rod 82 is vertically arranged at the upper end of the moving block 81, the adjusting rod 82 extends to the outer side of the upper end of the sealing chamber 6, the adjusting rod 82 is provided with threads, a nut 83 for fixing the adjusting rod 82 is arranged at the outer side of the sealing chamber 6, when the valve clack 4 is not tightly contacted with the valve seat 2 or the position of the valve rod 3 needs to be adjusted, if the whole adjusting valve is disassembled and is correspondingly processed, the operator is inconveniently troubled, and through the position change of adjusting rod 82 and nut 83, make the position of moving block 81 decline in seal chamber 6, make the spring force of reset spring 72 to piston 61 increase then, make the effort of valve clack 4 to valve seat 2 reinforcing finally, the contact of valve clack 4 and valve seat 2 is inseparabler, also can reach the vertical change to the valve rod 3 position through changing the position of moving block 81.

The two sides of the sealing chamber 6 are respectively provided with an auxiliary supporting frame 9, the auxiliary supporting frame 9 comprises a fixed guide pipe 91 hinged with the sealing chamber 6, a guide groove 92 is arranged in the fixed guide pipe 91, a moving rod 93 moving along the guide groove 92 is arranged in the guide groove 92, a supporting spring 94 is arranged between the bottom of the moving rod 93 and the bottom of the guide groove 92, a supporting plate 95 is arranged at the other end of the moving rod 93 opposite to the supporting spring and is connected with the supporting spring, the supporting plate 95 is vertical to the moving rod 93, when the regulating valve is installed, the fixed guide pipe 91 is pulled to be vertical, in the case where the regulating valve is placed in a narrow space, the fixed guide 91 is pulled in a direction perpendicular to the valve stem 3, under the action of the supporting spring 94, the two sides of the moving rod 93 extend to abut against the articles such as the wall and the like, and finally the fixation is finished, when the regulating valve is installed in a narrow space, the auxiliary supporting function of the regulating valve can be realized through the auxiliary supporting frame 9.

Claims

1. The utility model provides a set up actuating mechanism in inside pneumatic control valve, which comprises a valve body, a valve seat, valve rod and valve clack, be provided with the medium passage who supplies the medium circulation on the valve body, the valve seat sets up inside the valve body, the valve clack sets up in the valve rod bottom, the valve seat constitutes medium passage's closure with the valve clack, the valve rod passes valve body upper end and drives the valve clack along vertical movement, medium passage has the closure state and opens the state, the closure state offsets with the valve seat for the valve clack, medium passage is sealed by valve clack and valve seat, it separates mutually for valve clack and disk seat to open the state, medium passage opens, its characterized in that: the upper portion of the valve body is provided with a sealing chamber, the upper end of the valve rod extends into the sealing chamber, the top end of the valve rod is provided with a piston matched with the sealing chamber, and a driving mechanism driving the valve rod to move vertically is arranged on the sealing chamber.

2. A pneumatic regulator valve having an internally disposed drive mechanism according to claim 1, wherein: the driving mechanism comprises an air pressure controller used for controlling the air pressure of the sealing chamber, an air pressure pipeline communicated with the air pressure controller is arranged on the sealing chamber, and a return spring is vertically arranged between the piston and the inner side of the sealing chamber.

3. A pneumatic regulator valve having an internally disposed drive mechanism according to claim 2, wherein: the air pressure pipeline is positioned below the piston and used for driving the piston to move upwards, the return spring is positioned above the piston and is always in a compressed state.

4. A pneumatic regulator valve having an internally disposed drive mechanism according to claim 3, wherein: a moving block is arranged between the reset spring and the sealing chamber, an adjusting rod is vertically arranged at the upper end of the moving block, the adjusting rod extends to the outer side of the upper end of the sealing chamber, threads are arranged on the adjusting rod, and a nut for fixing the adjusting rod is arranged on the outer side of the sealing chamber.

5. A pneumatic regulator valve having an internally disposed drive mechanism according to claim 1, wherein: the sealing chamber both sides set up and be provided with auxiliary stay frame respectively, auxiliary stay frame includes the fixed pipe with sealing chamber articulated, the inside guide slot that is provided with of fixed pipe, be provided with the carriage release lever that removes along the guide slot in the guide slot, be provided with supporting spring between carriage release lever bottom and the guide slot bottom, the other end that the carriage release lever is connected with supporting spring relatively is provided with backup pad and carriage release lever mutually perpendicular.