A long-term automatic valve control device for industrial pipelines

Abstract

The present invention discloses a long-acting automatic valve control device for industrial pipelines, comprising a base plate connecting plate, two groups of rack boxes fixed to the base plate connecting plate, two racks rollingly connected to the first rack box, two racks rollingly connected to the second rack box, two cylindrical gears respectively meshing with four racks, a position sensor connected to the first cylindrical gear shaft by a key, an indicator plate connected to the second cylindrical gear shaft by bolts, two hose pressure rods respectively connected to the four racks, a cylinder piston rod for driving, a spring mechanism fixedly connected to the cylinder piston, a hose baffle fixed to the base plate connecting plate, a circular hose fixed to the hose baffle, a valve body connected to the base plate connecting plate by bolts, a cylinder body connected to the valve body by bolts, and a spring-connected support rod fixedly connected to the cylinder body.

Description

Technical Field

[0001] The invention relates to a long-acting automatic valve control device for industrial pipelines, belonging to the field of mechanical automation. Background Art

[0002] Industrial pipeline control valves are key equipment used to control the flow of fluids (liquids, gases, steam, etc.) in industrial production processes. In the industrial field, taking chemical production as an example, in the chemical process flow, various liquid raw materials with different chemical properties (such as corrosive liquids such as strong acids and alkalis), gas raw materials (such as flammable and explosive gases such as hydrogen and oxygen) and steam and other fluids generated in certain reaction processes are often involved. These fluids need to flow in an orderly manner between different reactors, storage tanks, and transportation pipelines according to specific process requirements. Industrial pipeline control valves can be set according to specific production links to accurately control whether these fluids pass smoothly, partially pass, or completely stop flowing, thereby ensuring that each chemical reaction can be carried out under appropriate material supply conditions, ensuring the smooth development of the entire chemical production process and the stability of product quality.

[0003] At present, industrial pipeline valves are mainly operated manually, and operators need to open and close the valves on site by handwheels or handles. Although this valve has a simple structure, it has many disadvantages. Manual valves require operators to operate on site by rotating the handwheel or turning the handle to open or close the valve. In large industrial pipeline systems, valves may be distributed in various areas, and operators need to spend a lot of time on the round trip. It is difficult to achieve precise control when adjusting the opening of manual valves. Operators can only roughly adjust the opening of the valve through experience and visual judgment, and cannot accurately control the flow and pressure of the fluid. Manual valves do not have their own feedback mechanism, and operators cannot accurately know the actual opening of the valve and the state of the fluid in the pipeline. The operation efficiency is low, especially in some harsh environments (such as high temperature, high pressure, toxic and harmful environments). There are safety hazards in operation. Summary of the invention

[0004] The purpose of the present invention is to replace the traditional manual valve control method, solve the shortcomings of low manual valve operation efficiency, high safety risks and high personnel costs, and overcome the problem of severe wear of spring-external automatic valves due to the eccentric force in the structure. For this purpose, a long-lasting automatic valve control device for industrial pipelines is provided.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A long-acting automatic valve control device for industrial pipelines of the present invention comprises a base plate connecting plate, a first rack box and a second rack box fixed to the base plate connecting plate, a first rack and a second rack rollingly connected to the first rack box, a third rack and a fourth rack rollingly connected to the second rack box, a first cylindrical gear meshing with the first rack and the second rack, a second cylindrical gear meshing with the third rack and the fourth rack, a position sensor connected to the first cylindrical gear shaft by a key, an indicating plate connected to the second cylindrical gear shaft by bolts, a first hose pressure rod connected to the first rack and the third rack by bolts, a second hose pressure rod connected to the second rack and the fourth rack by bolts, a cylinder piston fixedly connected above the first hose pressure rod for driving, a spring mechanism fixedly connected to the cylinder piston, a hose baffle fixed to the base plate connecting plate, a circular hose fixed to the hose baffle, a valve body connected to the base plate connecting plate by bolts, a cylinder body connected to the valve body by bolts, and a spring connection support rod fixedly connected to the cylinder body.

[0007] When the valve is closed, the spring mechanism uses its own elastic force to drive the cylinder piston to move downward along the cylinder body, so that the first hose pressure rod moves downward, and drives the first rack and the third rack to move downward along the first rack box and the second rack box slideway respectively, and then drives the first cylindrical gear on the right side to rotate counterclockwise along the axis and the second cylindrical gear on the left side to rotate clockwise along the axis respectively, so that the second rack and the fourth rack move upward along the first rack box and the second rack box slideway, and drives the second hose pressure rod below to move upward, so that the circular hose is compressed, thereby closing the valve. When the valve is opened, the cylinder piston acts as a driver and moves upward along the cylinder body, driving the first hose pressure rod to move upward, and driving the first rack and the third rack to move upward along the first rack box and the second rack box slideway respectively, thereby driving the first cylindrical gear on the right side to rotate clockwise along the axis and the second cylindrical gear on the left side to rotate counterclockwise along the axis respectively, so that the second rack and the fourth rack move downward along the first rack box and the second rack box slideway, driving the second hose pressure rod below to move downward, so that the circular hose is opened to ensure that the valve is opened. At the same time, the position sensor determines the valve opening at this time according to the rotation position of the first cylindrical gear on the right side, and the indicator disk displays the valve indication at this time according to the rotation position of the second cylindrical gear on the left side.

[0008] Beneficial Effects

[0009] Compared with existing manual valves and spring-mounted automatic valves, the long-acting automatic valve control device for industrial pipelines of the present invention has the characteristics of simple structure, high reliability, long service life, high operating efficiency, strong safety performance, etc., and can realize precise control of fluid flow in industrial production processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of the appearance of the long-acting automatic valve control device of the present invention;

[0011] Figure 2 It is a schematic diagram of the internal main structure of the long-acting automatic valve control device of the present invention;

[0012] Figure 3 It is a schematic diagram of the internal side structure of the long-acting automatic valve control device of the present invention.

[0013] In the figure, 1-bottom plate connecting plate, 2-first rack box, 3-second rack box, 4-first rack, 5-second rack, 6-third rack, 7-fourth rack, 8-first cylindrical gear, 9-second cylindrical gear, 10-position sensor, 11-indicator plate, 12-first hose pressure rod, 13-second hose pressure rod, 14-cylinder piston, 15-spring mechanism, 16-hose baffle, 17-circular hose, 18-valve body, 19-cylinder body, 20 spring connecting support rod. DETAILED DESCRIPTION

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Example

[0016] like Figure 1-3As shown, a long-acting automatic valve control device for industrial pipelines of the present invention comprises a bottom plate connecting plate 1, a first rack box 2 and a second rack box 3 fixed to the bottom plate connecting plate 1, a first rack 4 and a second rack 5 rollingly connected to the first rack box 2, a third rack 6 and a fourth rack 7 rollingly connected to the second rack box 3, a first cylindrical gear 8 meshing with the first rack 4 and the second rack 5, a second cylindrical gear 9 meshing with the third rack 6 and the fourth rack 7, a position sensor 10 connected to the shaft of the first cylindrical gear 8 by a key, and an indicator plate 1 connected to the shaft of the second cylindrical gear 9 by bolts. 1, a first hose pressure rod 12 connected to the first rack 4 and the third rack 6 by bolts, a second hose pressure rod 13 connected to the second rack 5 and the fourth rack 7 by bolts, a cylinder piston 14 fixedly connected above the first hose pressure rod 12 for driving, a spring mechanism 15 fixedly connected to the cylinder piston, a hose baffle 16 fixed to the bottom plate connecting plate 1, a circular hose 17 fixed to the hose baffle 16, a valve body 18 connected to the bottom plate connecting plate 1 by bolts, a cylinder body 19 connected above the valve body 18 by bolts, and a spring connection support rod 20 fixedly connected to the cylinder body.

[0017] When the valve is closed, the spring mechanism 15 uses its own elastic force to drive the cylinder piston 14 to move downward along the cylinder body 19, so that the first hose pressure rod 12 moves downward, and drives the first rack 4 and the third rack 6 to move downward along the first rack box 2 and the second rack box 3 slideway respectively, and then drives the first cylindrical gear 8 on the right side to rotate counterclockwise along the axis and the second cylindrical gear 9 on the left side to rotate clockwise along the axis, so that the second rack 5 and the fourth rack 7 move upward along the first rack box 2 and the second rack box 3 slideway, drives the second hose pressure rod 13 below to move upward, and compresses the circular hose 17, so as to close the valve. When the valve is opened, the cylinder piston 14 acts as a drive and moves upward along the cylinder body 19, driving the first hose pressure rod 12 to move upward, and driving the first rack 4 and the third rack 6 to move upward along the first rack box 2 and the second rack box 3 slideways respectively, thereby driving the first cylindrical gear 8 on the right side to rotate clockwise along the axis and the second cylindrical gear 9 on the left side to rotate counterclockwise along the axis respectively, so that the second rack 5 and the fourth rack 7 move downward along the first rack box 2 and the second rack box 3 slideways, driving the second hose pressure rod 13 below to move downward, so that the circular hose 17 is opened to ensure that the valve is opened. At the same time, the position sensor 10 determines the valve opening at this time according to the rotation position of the first cylindrical gear 8 on the right side, and the indicator disk 11 displays the valve indication at this time according to the rotation position of the second cylindrical gear 9 on the left side.

Claims

1. A long-term automatic valve control device for industrial pipelines, characterized in that: It includes a base plate connecting plate, a first rack box and a second rack box fixed to the base plate connecting plate, a first rack and a second rack rollingly connected to the first rack box, a third rack and a fourth rack rollingly connected to the second rack box, a first cylindrical gear meshing with the first rack and the second rack, a second cylindrical gear meshing with the third rack and the fourth rack, a position sensor connected to the first cylindrical gear shaft by a key, an indicator plate connected to the second cylindrical gear shaft by bolts, a first hose pressure rod connected to the first rack and the third rack by bolts, a second hose pressure rod connected to the second rack and the fourth rack by bolts, a cylinder piston fixedly connected above the first hose pressure rod for driving, a spring mechanism fixedly connected to the cylinder piston, a hose baffle fixed to the base plate connecting plate, a circular hose fixed to the hose baffle, a valve body connected to the base plate connecting plate by bolts, a cylinder body connected to the valve body by bolts, and a spring-connected support rod fixedly connected to the cylinder body; When the valve is closed, the spring mechanism uses its own elastic force to drive the cylinder piston to move downward along the cylinder body, so that the first hose pressure rod moves downward, and drives the first rack and the third rack to move downward along the first rack box and the second rack box slideway respectively, and then drives the first cylindrical gear on the right side to rotate counterclockwise along the axis and the second cylindrical gear on the left side to rotate clockwise along the axis, so that the second rack and the fourth rack move upward along the first rack box and the second rack box slideway, and drives the second hose pressure rod below to move upward, so that the circular hose is compressed, thereby closing the valve; when the valve is opened, the cylinder piston acts as a drive to move upward along the cylinder body, The first hose pressure rod is driven to move upward, and the first rack and the third rack are driven to move upward along the first rack box and the second rack box slideway respectively, and then the first cylindrical gear on the right side is driven to rotate clockwise along the axis and the second cylindrical gear on the left side is driven to rotate counterclockwise along the axis respectively, so that the second rack and the fourth rack move downward along the first rack box and the second rack box slideway, and the second hose pressure rod below is driven to move downward, so that the circular hose is opened to ensure that the valve is opened. At the same time, the position sensor determines the valve opening at this time according to the rotation position of the first cylindrical gear on the right side, and the indicator disk displays the valve indication at this time according to the rotation position of the second cylindrical gear on the left side.

Images