CN216618687U

CN216618687U - Angular travel valve

Info

Publication number: CN216618687U
Application number: CN202220121610.7U
Authority: CN
Inventors: 王宇; 周鉴琪
Original assignee: Suzhou Delan Energy Science & Technology Corp ltd
Current assignee: Suzhou Delan Energy Science & Technology Corp ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-05-27
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses an angular travel valve, which comprises a valve main body and a starting and closing piece, wherein a flow channel is arranged in the valve main body, the starting and closing piece is used for controlling the starting and closing of the flow channel, and the flow channel is divided into a first flow channel and a second flow channel when the starting and closing piece is closed; the opening and closing part comprises a valve core and a valve rod driving the valve core to do rotary motion; a sleeve is arranged in the valve main body, and the valve core is arranged in the sleeve and pressed on the sleeve; a plurality of first windows are formed in the circumferential side wall of the valve core, a second window is formed in the bottom of the valve core, and a third window is formed in the sleeve corresponding to the first window; the total stroke of the valve core is any angle not greater than 90 degrees; the balance holes are arranged, so that the pressure of the upper cavity and the lower cavity can be kept balanced, and pressure difference can be avoided; the forces applied to the valve core in the radial direction, the circumferential direction and the axial direction basically cancel each other no matter in the up-in-down-out direction or in the down-in-up-out direction, so that the valve core is not influenced by unbalanced force like a common ball valve, and the switching torque of the valve core is greatly reduced.

Description

Angular travel valve

Technical Field

The utility model relates to the technical field of valves, in particular to an angular travel valve.

Background

A valve is a device for controlling the direction, pressure, and flow rate of a fluid in a fluid system, and is a device capable of controlling the flow rate of a medium (liquid, gas, powder) in a pipe or equipment by flowing or stopping the medium; the vacuum valve refers to a vacuum system component used for changing the direction of air flow, adjusting the magnitude of air flow and cutting off or connecting a pipeline in a vacuum system.

The ball valve has many advantages, so it is widely used in petroleum, chemical, natural gas, electric power and metallurgy industries. Ball valves are also widely used in various types of pipes to control the opening and closing of the pipes. At present, a ball valve generally comprises a valve body, a valve core, a valve rod, a valve handle and other connecting parts, wherein the valve rod is connected with the valve handle, the valve core is embedded into the valve body, the valve rod is clamped with the valve core, the valve core and the valve rod of the ball valve are clamped together, and the core is embedded into the valve body independently.

In the center of the prior art, when the position of the valve core is easy to loose or deviate due to liquid impact, the valve core is not easy to return once deviating, and the sealing performance and the continuous operation time of the whole ball valve are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an angular travel valve.

In order to achieve the purpose of the utility model, the utility model adopts the technical scheme that: an angular travel valve comprises a valve body and a starting and closing piece, wherein a flow channel is arranged in the valve body, the starting and closing piece controls the starting and closing of the flow channel, and the flow channel is divided into a first flow channel and a second flow channel when the starting and closing piece is closed; the opening and closing piece comprises a valve core and a valve rod driving the valve core to do rotary motion; a sleeve is arranged in the valve main body, and the valve core is arranged in the sleeve and pressed on the sleeve; a plurality of first windows are formed in the circumferential side wall of the valve core, a second window is formed in the bottom of the valve core, and a third window is formed in the sleeve corresponding to the first window; the total stroke of the valve core is any angle not greater than 90 degrees; preferably, the total stroke is 60 °; more preferably, the total travel is 45 °; more preferably, the total stroke is 30 °.

Preferably, the upper surface of the valve core is of an arc-shaped structure, and the interior of the valve main body is divided into an upper cavity and a lower cavity which are arranged up and down by the upper surface of the valve core; the upper surface of the valve core is also provided with a plurality of evenly distributed balance holes; the balance holes can ensure that the pressure intensity of the upper cavity and the lower cavity keeps balance, and pressure difference can not occur; when the valve core is in a closed state and the pressure or vacuum degree difference between the first flow channel and the second flow channel is large, the upper cavity and the lower cavity are communicated, so that the valve core can be prevented from moving in the axial direction due to the fact that the pressure of the upper cavity is different from that of the lower cavity.

Preferably, a plurality of balancing holes are distributed around the axis of the valve core; more preferably, the number of the balancing holes is even.

Preferably, a slow flow channel is formed in the valve main body corresponding to the valve core, and the slow flow channel surrounds the valve main body and is communicated with the second flow channel; because the slow flow channel is arranged around the valve main body, no matter the flow direction of the slow flow channel is in an upper-in lower-out or a lower-in upper-out direction, the pressure on the valve core in the circumferential direction can be ensured to be uniform, and the force on the valve core in the radial direction, the circumferential direction and the axial direction (the valve core is provided with balance holes) can be basically counteracted with each other, so that the slow flow channel cannot be influenced by unbalanced force like a common ball valve, and the switching torque of the slow flow channel can be greatly reduced; and the valve core does not need to be prevented from increasing in mass in order to resist the fluid, so that the economic effect is achieved.

Preferably, the bottom of the slow flow channel is wider than the top; because the valve core is arranged in the sleeve and pressed on the sleeve, and the self gravity of the valve core is added, the bottom of the valve core is not easy to deviate, and the slow flow channel is wider.

Preferably, the first flow channel is communicated with a second window at the bottom of the valve core, and the second flow channel is connected with the first flow channel through the first window; the direction of fluid entering the flow channel in the first flow channel is vertical to the direction of fluid entering the flow channel in the second flow channel, and displacement caused by force on the same straight line on the valve core for a long time is avoided.

Preferably, the valve body comprises a valve cover and a valve body, and the valve cover is fixed on the upper side of the valve body through bolts; the valve rod penetrates through the valve cover and is fixedly connected with the valve core, and the valve rod and the valve cover are sealed through a first sealing element.

Preferably, the size of the first window is not smaller than that of the third window, so that the total stroke of the valve core can be further reduced, the valve core is prevented from being washed when the valve core is fully opened, and the flow capacity of the valve is ensured.

Preferably, the first window and the third window are identical in shape and size; the valve core can be ensured not to be washed when the valve core is fully opened, and the flow capacity of the valve is ensured; preferably, the first window and the third window are in the shape of a round hole or a straight strip.

Preferably, the sleeve is of a single-layer structure or a multi-layer structure; when the sleeve is of a single-layer structure, the sleeve and the valve body are sealed through a third sealing element; when the sleeve is of a double-layer structure, a closed cavity is formed between double-layer walls of the sleeve, and fluid is prevented from entering the cavity.

Preferably, the sleeve and the valve core are sealed through a second sealing element, and the second sealing element is a sealing ring; the sleeve and the valve core are provided with grooves, the sealing ring is arranged in the grooves, the sealing ring is more stably arranged, and when the sleeve is in contact with the valve core, the sealing ring is not easy to shift.

Preferably, the valve core and the sleeve barrel are limited through a limiting pin, the limiting pin is installed at the top end of the valve core, and a sleeve is installed in the sleeve and pressed on the sleeve.

Preferably, the upper end of the valve rod is provided with a flat key for transmitting torque.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

1. according to the angular travel valve, the total travel is any angle not larger than 90 degrees, so that the opening and closing time can be shortened, and the requirement of quick opening and closing of the valve is met;

2. according to the angular travel valve, the direction of fluid entering the flow channel in the first flow channel is vertical to that of fluid entering the flow channel in the second flow channel, so that the valve core is prevented from being deviated due to long-time force on the same straight line;

3. according to the angular travel valve, the upper surface is of an arc-shaped structure, and the upper surface of the valve core divides the interior of the valve main body into an upper cavity and a lower cavity which are arranged up and down; the upper surface of the valve core is also provided with a plurality of evenly distributed balance holes; the balance holes can ensure that the pressure intensity of the upper cavity and the lower cavity keeps balance, and pressure difference can not occur; the forces applied to the valve core in the radial direction, the circumferential direction and the axial direction (the valve core is provided with balance holes) are basically counteracted with each other no matter in the upper inlet and lower outlet or in the lower inlet and upper outlet directions, so that the valve core is not influenced by unbalanced force like a common ball valve, and the switching torque of the valve core is greatly reduced;

4. the angular travel valve is simple in structure, low in cost, high in economic benefit and suitable for popularization and application.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the flow direction of the present invention from bottom to top;

FIG. 3 is a schematic view of the flow direction of the present invention from top to bottom;

FIG. 4 is a schematic view of the cartridge of the present invention fully closed;

FIG. 5 is a schematic view of the valve cartridge of the present invention fully open;

FIG. 6 is a schematic view of the valve cartridge of the present invention half open.

Wherein: 1. a first flow passage; 2. a second flow passage; 3. a valve core; 4. a valve stem; 5. a sleeve; 6. a first window; 7. a second window; 8. a third window; 9. an upper chamber; 10. a lower cavity; 11. a balance hole; 12. a valve cover; 13. a valve body; 14. a bolt; 15. a limit pin; 16. a second seal member; 17. a flat bond.

Detailed Description

The utility model is further described with reference to the following figures and examples:

examples

An angular travel valve comprises a valve body and a starting and closing piece, wherein a flow channel is arranged in the valve body, the starting and closing piece controls the starting and closing of the flow channel, and the flow channel is divided into a first flow channel 1 and a second flow channel 2 when the starting and closing piece is closed; the opening and closing part comprises a valve core 3 and a valve rod 4 driving the valve core 3 to do rotary motion; a sleeve 5 is arranged in the valve main body, in the embodiment, the sleeve 5 is of a single-layer structure, and the valve core 3 is arranged in the sleeve 5 and pressed on the sleeve 5; a plurality of first windows 6 are arranged on the circumferential side wall of the valve core 3, a second window 7 is arranged at the bottom of the valve core, and a third window 8 is arranged on the sleeve 5 corresponding to the first windows 6; the first window 6 and the third window 8 are both straight-bar-shaped and have the same size, so that the valve core 3 is not washed when the valve core 3 is fully opened, and the flow capacity of the valve is ensured.

The total stroke of the valve core 3 is any angle not greater than 90 degrees, a general Clobe type valve is a straight stroke, and the valve of the application is an angular stroke; the total stroke of the valve in the embodiment is 30 degrees, the switching time can be reduced, and the requirement of quick switching of the valve can be met.

The upper surface of the valve core 3 is of an arc structure, and the interior of the valve main body is divided into an upper cavity 9 and a lower cavity 10 which are arranged up and down by the upper surface of the valve core 3; the upper surface of the valve core 3 is also provided with a plurality of 6 balance holes 11 which are uniformly distributed; the balance holes 11 can ensure that the pressures of the upper cavity 9 and the lower cavity 10 are kept balanced, and no pressure difference occurs; when the valve core 3 is in a closed state and the pressure or vacuum degree difference between the first flow channel 1 and the second flow channel 2 is large, the upper chamber 9 and the lower chamber 10 are communicated, so that the valve core 3 can be prevented from moving in the axial direction due to the difference between the pressures of the upper chamber 9 and the lower chamber 10.

A slow flow channel is arranged in the valve main body corresponding to the valve core 3, surrounds the valve main body and is communicated with the second flow channel 2; when the valve core 3 is in an open state, fluid flows into or out of the valve core 3 through the first window 6, and because the slow flow channel is arranged around the valve main body, no matter the flow direction of the slow flow channel is in an upper-in lower-out or a lower-in upper-out direction, the pressure on the valve core 3 in the circumferential direction can be ensured to be uniform, the force on the valve core 3 basically offsets in the radial direction, the circumferential direction and the axial direction (the valve core 3 is provided with the balance hole 11), so that the valve core 3 cannot be influenced by unbalanced force like a common ball valve, and the switching torque of the valve core 3 can be greatly reduced; the thickness of the valve core 3 is not required to be increased, the mass of the valve core 3 is prevented from being increased, and the economic effect is achieved.

The first flow channel 1 is communicated with a second window 7 at the bottom of the valve core 3, and the second flow channel 2 is connected with the first flow channel 1 through the first window 6; the direction of the fluid entering the flow channel in the first flow channel 1 is vertical to the direction of the fluid entering the flow channel in the second flow channel 2, so that the displacement caused by the force on the same straight line on the valve core 3 for a long time is avoided.

The valve body comprises a valve cover 12 and a valve body 13, and the valve cover 12 is fixed on the upper side of the valve body 13 through a bolt 14; the valve rod 4 penetrates through the valve cover 12 and is fixedly connected with the valve core 3, and the valve rod 4 and the valve cover 12 are sealed through a first sealing element, so that fluid can be prevented from leaking.

The valve cover 12 and the valve body 13 compress the sleeve 5, the valve core 3 is placed in the sleeve, and the valve core is prevented from jumping out through the limiting pin 15.

The sleeve 5 and the valve core 3 are sealed through a second sealing piece 16, and the second sealing piece 16 is a sealing ring; the sleeve 5 and the valve core 3 are provided with grooves, the sealing rings are arranged in the grooves, the sealing rings are more stably arranged, and when the sleeve 5 is in contact with the valve core 3, the sealing rings are not easy to shift.

The sleeve 5 and the valve body 13 are sealed through a third sealing element, and the third sealing element is a sealing ring; the sleeve 5 is provided with a groove, and the sealing ring is arranged in the groove, so that the sealing ring is more stably arranged.

The valve core 3 and the sleeve are limited through a limiting pin 15, the limiting pin 15 is installed at the top end of the valve core 3, and it is guaranteed that the sleeve 5 is installed in the sleeve 5 and pressed on the sleeve 5.

The upper end of the valve rod 4 is provided with a flat key 17 which plays a role of transmitting torque.

According to the angular travel valve, the total travel is any angle not greater than 90 degrees, the opening and closing time can be reduced, and the requirement of quick opening and closing of the valve is met; the direction of the fluid in the first flow channel 1 and the second flow channel 2 entering the flow channels is vertical, so that the displacement of the valve core 3 caused by long-time force on the same straight line is avoided; the upper surface of the valve core 3 divides the interior of the valve main body into an upper cavity 9 and a lower cavity 10 which are arranged up and down; the upper surface of the valve core 3 is also provided with a plurality of 6 balance holes 11 which are uniformly distributed; the balance holes 11 can ensure that the pressures of the upper cavity 9 and the lower cavity 10 are kept balanced, and no pressure difference occurs; the forces applied to the spool 3 in the radial direction, the circumferential direction and the axial direction (the spool 3 is provided with the balance holes 11) are basically offset with each other no matter in the up-in-down-out direction or in the down-in-up-out direction, so that the switching torque of the ball valve is greatly reduced without being affected by unbalanced forces like a common ball valve.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An angular travel valve, characterized by comprising

The valve comprises a valve main body and a starting and closing piece, wherein a flow channel is arranged in the valve main body, the starting and closing piece controls the starting and closing of the flow channel, and the flow channel is divided into a first flow channel (1) and a second flow channel (2) when the starting and closing piece is closed; the opening and closing part comprises a valve core (3) and a valve rod (4) driving the valve core (3) to do rotary motion; a sleeve (5) is arranged in the valve main body, and the valve core (3) is arranged in the sleeve (5) and pressed on the sleeve (5); a plurality of first windows (6) are formed in the circumferential side wall of the valve core (3), a second window (7) is formed in the bottom of the valve core, and a third window (8) is formed in the sleeve (5) corresponding to the first windows (6); the total stroke of the valve core (3) is an arbitrary angle not greater than 90 degrees.

2. An angular travel valve according to claim 1, characterized in that the upper surface of the valve core (3) is of an arc-shaped structure, and the upper surface of the valve core (3) divides the interior of the valve body into an upper chamber (9) and a lower chamber (10) which are arranged up and down; the upper surface of the valve core (3) is also provided with a plurality of evenly distributed balance holes (11).

3. An angular travel valve according to claim 1, characterized in that inside the valve body, in correspondence of the valve core (3), there is a slow flow channel.

4. An angular travel valve according to claim 1, characterised in that said first flow channel (1) is placed in communication with a second window (7) in the bottom of said spool (3), said second flow channel (2) being connected to and disconnected from said first flow channel (1) by said first window (6).

5. An angular travel valve according to claim 1, wherein the valve body comprises a valve cover (12) and a valve body (13), the valve cover (12) being fixed to the upper side of the valve body (13) by bolts (14); the valve rod (4) penetrates through the valve cover (12) and is fixedly connected with the valve core (3), and the valve rod (4) and the valve cover (12) are sealed through a first sealing element.

6. An angular travel valve according to claim 1, wherein the first window (6) and the third window (8) are of the same size and shape.

7. An angular travel valve according to claim 1, characterised in that the position between the core (3) and the sleeve is limited by means of a limit pin (15).

8. An angular travel valve according to claim 1, wherein said sleeve (5) is of single-layer or multi-layer construction.

9. An angular travel valve according to claim 1, wherein the sleeve (5) is sealed to the spool (3) by a second seal (16).

10. An angular travel valve according to claim 1, characterised in that the upper end of the valve stem (4) is fitted with a flat key (17).