CN218348046U

CN218348046U - Valve with flow rate control

Info

Publication number: CN218348046U
Application number: CN202222779459.9U
Authority: CN
Inventors: 黄丹挺; 冉炎; 黄敏珠
Original assignee: Guangzhou Ava Valve Fluid Control Equipment Co ltd
Current assignee: Guangzhou Ava Valve Fluid Control Equipment Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-20
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a take velocity of flow control's valve relates to the relevant field of valve, for the choke structure direct contact who solves medium and the velocity of flow of control among the prior art, slows down and control the velocity of flow through the difference of choke surface and rivers contact surface, because high-speed rivers and choke structure direct contact, the impact force of rivers can influence the problem of choke structure life. Front and back end welded fastening has elementary choked flow case on the valve body, elementary choked flow case and the inside rectangle chamber that forms of valve body, the front and back end sliding connection in rectangle chamber has the chocking block, two the interior terminal surface laminating of chocking block, the spring beam is installed along the outer end of chocking block to the rectangle intracavity portion, be provided with external pressure spring along the outside of spring beam between elementary choked flow case and the chocking block, the chocking block comprises slide plate portion, triangle post portion and fender stream board, and slide plate portion is located the outer end of triangle post portion, keeps off the inner that stream board is located triangle post portion.

Description

Valve with flow rate control

Technical Field

The utility model relates to a valve correlation field specifically is a take flow velocity control's valve.

Background

Valves are mechanical devices that control the flow, direction, pressure, temperature, etc. of a flowing fluid medium, and are essential components in piping systems. The valve can be operated manually or by a hand wheel, a handle or a pedal, and can also be controlled to change the pressure, the temperature and the flow of the fluid medium. The valves are further divided into cast iron valves, cast steel valves, stainless steel valves, chromium molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves and the like according to the material.

Among them, the control valve for the flow rate of the medium is one of the most commonly used valves, such as the chinese granted patent (a water regulating valve for multi-stage flow rate control) with the publication number CN 110486492B; for example, in a chinese patent (a new type of valve with adjustable flow rate) with the publication number CN 212616393U, the speed control plate is moved upward or downward to increase or decrease the range of the speed control plate blocking the water outlet hole, and then the speed control plate can be inserted into the corresponding speed distribution hole under the action of the spring in a circular sleeve manner, so as to complete the adjustment of the flow rate.

Although the above prior art has the function of controlling the flowing speed of the medium, the medium is in direct contact with the flow-blocking structure for controlling the flowing speed, the flowing speed is slowed down and controlled through the difference between the flow-blocking surface and the water flow contact surface, and the impact force of the water flow can affect the service life of the flow-blocking structure due to the direct contact between the high-speed water flow and the flow-blocking structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take flow rate control's valve to the choke structure direct contact of the medium that proposes in solving above-mentioned background art and the control flow rate slows down and control the velocity of flow through the difference of choke surface and rivers contact surface, because high-speed rivers and choke structure direct contact, the impact force of rivers can influence the problem of choke structure life.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take velocity of flow control's valve, includes the valve body, front and back end welded fastening has elementary choked flow case on the valve body, elementary choked flow case and the inside rectangle chamber that forms of valve body, the front and back end sliding connection in rectangle chamber has the choked flow piece, two the interior terminal surface laminating of choked flow piece, the spring beam is installed along the outer end of choked flow piece to the rectangle intracavity portion, be provided with external pressure spring along the outside of spring beam between elementary choked flow case and the choked flow piece, the choked flow piece comprises sliding plate portion, triangle post portion and choked flow board, and sliding plate portion is located the outer end of triangle post portion, and the choked flow board is located the inner of triangle post portion, sliding plate portion, triangle post portion and the choked flow board body coupling, the side face position of intaking of triangle post portion is the choked flow inclined plane, run through in the middle of choked flow board terminal surface and be provided with intermediate junction half-hole groove, two on the choked flow piece intermediate junction half-hole groove becomes the cylindricality hole groove.

Preferably, a reduction gearbox is further welded and fixed on the valve pipe body, an intermediate cavity is arranged inside the reduction gearbox, the intermediate cavity comprises a semi-cylindrical cavity and a cubic cavity, the semi-cylindrical cavity is located at the lower end of the cubic cavity, and the semi-cylindrical cavity is communicated with the cubic cavity.

Preferably, the middle cavity is connected with a speed regulating block in a sliding mode, the speed regulating block is composed of a semi-cylindrical portion and a cubic portion, the semi-cylindrical portion is located at the lower end of the cubic portion, the semi-cylindrical portion and the cubic portion are integrally formed, and the semi-cylindrical portion is matched with the semi-cylindrical portion in size.

Preferably, the middle of the upper end face of the reduction gearbox is rotatably connected with a rotating shaft through a bearing, the upper end of the rotating shaft is fixedly connected with a connecting hand wheel, the lower end of the rotating shaft is fixedly connected with a threaded rod, and the threaded rod is connected with the speed regulating block through threads.

Preferably, a water inlet is formed in one side inside the valve pipe body, a water outlet is formed in the other side inside the valve pipe body, a circulation channel is formed inside the valve pipe body, the circulation channel is provided with three sections, and a first section of circulation channel, a rectangular cavity, a second section of circulation channel, a middle cavity and a third section of circulation channel are sequentially arranged inside the valve pipe body.

Preferably, the two sides of the valve pipe body are fixedly welded with connecting flanges.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, before the direct flow speed control, the water flow pressure is slowed down by each structure in the primary flow blocking box; when the medium passes through the rectangular cavity, the medium is contacted with the flow blocking inclined plane of the triangular column part on the flow blocking block and the flow blocking plate, and when the flow blocking inclined plane is contacted with the horizontally flowing medium, the medium has a reaction force on water flow to slow down the flow speed. Through the elementary speed reduction to rivers pressure, recycle reducing gear box inner structure and carry out velocity of flow control and can reduce the injury of high-speed rivers to reducing gear box inner structure, solved the choked flow structure direct contact of medium and control velocity of flow, slow down and control the velocity of flow through the difference of choked flow face and rivers contact surface, because high-speed rivers and choked flow structure direct contact, the impact force of rivers can influence choked flow structure life's problem.

2. The utility model discloses an in, elementary choked flow case directly bears high-speed rivers pressure, does not design elementary choked flow case, can make elementary choked flow case itself cause the injury, consequently is provided with spring beam, external pressure spring and choked flow piece, and makes and be provided with the choked flow inclined plane on the choked flow piece. When the water flow pressure is small, the water flow can not resist the elastic force of the spring rod and the outer pressure spring, the flow blocking block is kept still, and the water flow is decelerated and passes through the two middle connecting half-hole grooves; when the water flow pressure is larger, the elastic force of the spring rod and the outer pressure spring is smaller than the water flow pressure, the flow blocking blocks move towards the spring rod and the outer pressure spring, the two flow blocking blocks are separated, and channels are additionally arranged at the upper end and the lower end of the two middle connection half-hole grooves to enable the medium to flow through. The normal circulation of medium is not influenced to whole in-process, and when rivers pressure was too big, the piece that chokes the flow was moved to spring beam and outer pressure spring direction, avoided hard contact to bear the impact force, but the motion does work and reduces rivers and to the injury of the piece that chokes the flow, can reduce rivers pressure simultaneously, and the realization of velocity of flow control function is realized in the cooperation.

3. The utility model discloses an in, rotate the connection hand wheel, connect the hand wheel and drive the axis of rotation and rotate, the fixed threaded rod synchronous rotation of axis of rotation lower extreme, because of the threaded connection relation of threaded rod and speed governing piece, the control speed governing piece reciprocates in the middle intracavity to the velocity of flow that makes the medium is controlled the regulation, realizes the velocity of flow control function.

Drawings

Fig. 1 is a schematic perspective view of a valve with flow rate control according to the present invention;

fig. 2 is a sectional view of a split-open three-dimensional structure of the valve with flow rate control at the position of the primary flow-resisting box according to the present invention;

fig. 3 is a schematic view of the internal structure of the primary choke box of the present invention;

FIG. 4 is a schematic view of the three-dimensional structure of the flow blocking block of the present invention;

fig. 5 is a sectional view of the three-dimensional structure of the valve with flow rate control of the present invention cut open at the position of the reduction box.

In the figure: 1. a valve body; 2. a connecting flange; 3. a water inlet; 4. a water outlet; 5. a flow-through channel; 6. a primary flow blocking tank; 7. a rectangular cavity; 8. a spring lever; 9. an outer pressure spring; 10. a flow choking block; 11. a sliding plate portion; 12. a triangular pillar portion; 13. a flow choking bevel; 14. a flow baffle plate; 15. the middle part is connected with a half-hole groove; 16. a reduction gearbox; 17. an intermediate chamber; 18. a semi-cylindrical cavity; 19. a cubic cavity; 20. a speed regulating block; 21. a semi-cylindrical portion; 22. a cube portion; 23. a rotating shaft; 24. connecting a hand wheel; 25. a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-5, the present invention provides an embodiment: a valve with flow rate control comprises a valve pipe body 1, wherein primary flow blocking boxes 6 are fixedly welded at the front end and the rear end of the valve pipe body 1, rectangular cavities 7 are formed in the primary flow blocking boxes 6 and the interior of the valve pipe body 1, flow blocking blocks 10 are connected at the front end and the rear end of each rectangular cavity 7 in a sliding mode, the inner end faces of the two flow blocking blocks 10 are attached, and sealing structures are arranged on the attachment faces to prevent media from permeating from the connection positions; the spring arm 8 is installed along the outer end of choked flow piece 10 inside rectangular cavity 7, spring arm 8 mainly comprises the outer sleeve, the interior slip rod body, the innerspring constitutes, be provided with external pressure spring 9 along the outside of spring arm 8 between primary choked flow case 6 and the choked flow piece 10, choked flow piece 10 is by sliding plate portion 11, triangular column portion 12 and fender stream board 14 constitute, sliding plate portion 11 is located the outer end of triangular column portion 12, it is located the inner of triangular column portion 12 to keep off stream board 14, sliding plate portion 11, triangular column portion 12 and fender stream board 14 body coupling, the side position of intaking of triangular column portion 12 is choked flow inclined plane 13, there is reaction force to rivers when choked flow inclined plane 13 contacts the medium of horizontal flow and slows down the velocity of flow, it is provided with intermediate junction half-hole groove 15 to run through in the middle of choked flow piece 14, intermediate junction half-hole groove 15 forms the cylindricality hole groove on two choked flow pieces 10.

When the medium passes through the rectangular cavity 7, the medium is contacted with the flow blocking inclined surface 13 of the triangular column part 12 on the flow blocking block 10 and the flow blocking plate 14, when the flow blocking inclined surface 13 is contacted with the horizontally flowing medium, the reaction force is exerted on the water flow to slow down the flow velocity, and the flow blocking block 10 is pushed to move towards the spring rod 8 and the outer pressure spring 9 under the pressure of the water flow. When the water flow pressure is small, the water flow can not resist the elastic force of the spring rod 8 and the outer pressure spring 9, the flow blocking block 10 is kept still, and the water flow is decelerated to pass through the two middle connecting half-hole grooves 15; when the water flow pressure is larger, the elastic force of the spring rod 8 and the outer pressure spring 9 is smaller than the water flow pressure, the flow blocking blocks 10 move towards the spring rod 8 and the outer pressure spring 9, the two flow blocking blocks 10 are separated, and channels are additionally arranged at the upper ends and the lower ends of the two middle connecting half-hole grooves 15 to enable media to flow through.

Furthermore, a reduction gearbox 16 is welded and fixed on the valve pipe body 1, an intermediate cavity 17 is arranged inside the reduction gearbox 16, the intermediate cavity 17 comprises a semi-cylindrical cavity 18 and a cubic cavity 19, the semi-cylindrical cavity 18 is positioned at the lower end of the cubic cavity 19, the semi-cylindrical cavity 18 is communicated with the cubic cavity 19, a speed regulating block 20 is connected in the intermediate cavity 17 in a sliding manner, the speed regulating block 20 is composed of a semi-cylindrical part 21 and a cubic part 22, the semi-cylindrical part 21 is positioned at the lower end of the cubic part 22, the semi-cylindrical part 21 and the cubic part 22 are integrally formed, and the semi-cylindrical part 21 is matched with the semi-cylindrical cavity 18 in size; the middle of the upper end face of the reduction gearbox 16 is rotatably connected with a rotating shaft 23 through a bearing, the upper end of the rotating shaft 23 is fixedly connected with a connecting hand wheel 24, the lower end of the rotating shaft 23 is fixedly connected with a threaded rod 25, and the threaded rod 25 is in threaded connection with the speed regulating block 20.

The medium is primarily decelerated after passing through the primary baffle box 6, and then flow rate control is performed. The connecting hand wheel 24 is rotated, the connecting hand wheel 24 drives the rotating shaft 23 to rotate, the threaded rod 25 fixed at the lower end of the rotating shaft 23 synchronously rotates, and the speed regulating block 20 is controlled to move up and down in the middle cavity 17 due to the threaded connection relationship between the threaded rod 25 and the speed regulating block 20, so that the flow speed of the medium is controlled and regulated.

A water inlet 3 is formed in one side inside the valve pipe body 1, a water outlet 4 is formed in the other side inside the valve pipe body 1, a circulation channel 5 is arranged inside the valve pipe body 1, the circulation channel 5 is provided with three sections, a first section of circulation channel 5, a rectangular cavity 7, a second section of circulation channel 5, a middle cavity 17 and a third section of circulation channel 5 inside the valve pipe body 1 are sequentially arranged, and connecting flanges 2 are welded and fixed to two sides of the valve pipe body 1. The valve is connected with a flange of an outer medium conveying pipe body through a connecting flange 2, a medium enters the valve through a water inlet 3, sequentially passes through a first section of circulation channel 5, a rectangular cavity 7, a second section of circulation channel 5, a middle cavity 17 and a third section of circulation channel 5, and then flows out of a water outlet 4.

The sliding end faces of the choke block 10 and the speed regulation block 20 are both provided with sealing structures, so that the medium is prevented from being leaked from the sliding end face position in the sliding process, and the part belongs to the content of common sense, so that the utility model is not specifically introduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a take flow rate control's valve, includes valve body (1), its characterized in that: front and back end welded fastening has primary choked flow case (6) on valve body (1), primary choked flow case (6) and valve body (1) inside formation rectangle chamber (7), the front and back end sliding connection of rectangle chamber (7) has choked flow piece (10), two the interior terminal surface laminating of choked flow piece (10), spring beam (8) are installed along the outer end of choked flow piece (10) to rectangle chamber (7) inside, be provided with external pressure spring (9) along the outside of spring beam (8) between primary choked flow case (6) and choked flow piece (10), choked flow piece (10) comprise slide plate portion (11), triangle post portion (12) and choked flow board (14), and slide plate portion (11) are located the outer end of triangle post portion (12), and choked flow board (14) are located the inner of triangle post portion (12), slide plate portion (11), triangle post portion (12) and choked flow board (14) body coupling, the inflow surface position of triangle post portion (12) is inclined plane (13) is located the triangle post portion (14) terminal surface, the choke plate (14) terminal surface is provided with intermediate junction half-hole connection slot (15) and forms in the middle of choked flow groove (10).

2. A valve with flow rate control as claimed in claim 1, wherein: the valve comprises a valve body (1), and is characterized in that a reduction gearbox (16) is further welded and fixed on the valve body (1), a middle cavity (17) is arranged inside the reduction gearbox (16), the middle cavity (17) comprises a semi-cylindrical cavity (18) and a cubic cavity (19), the semi-cylindrical cavity (18) is located at the lower end of the cubic cavity (19), and the semi-cylindrical cavity (18) is communicated with the cubic cavity (19).

3. A valve with flow rate control as claimed in claim 2, wherein: the speed regulation device is characterized in that a speed regulation block (20) is connected in the middle cavity (17) in a sliding mode, the speed regulation block (20) is composed of a semi-cylindrical portion (21) and a cubic portion (22), the semi-cylindrical portion (21) is located at the lower end of the cubic portion (22), the semi-cylindrical portion (21) and the cubic portion (22) are integrally formed, and the semi-cylindrical portion (21) is matched with the semi-cylindrical cavity (18) in size.

4. A valve with flow rate control as claimed in claim 3, wherein: the speed reduction box is characterized in that a rotating shaft (23) is rotatably connected in the middle of the upper end face of the speed reduction box (16) through a bearing, a connecting hand wheel (24) is fixedly connected to the upper end of the rotating shaft (23), a threaded rod (25) is fixedly connected to the lower end of the rotating shaft (23), and the threaded rod (25) is in threaded connection with the speed regulation block (20).

5. A valve with flow rate control as claimed in claim 2, wherein: the water inlet (3) is arranged on one side inside the valve pipe body (1), the water outlet (4) is arranged on the other side inside the valve pipe body (1), the circulation channel (5) is arranged inside the valve pipe body (1), the circulation channel (5) is provided with three sections, and the first section circulation channel (5), the rectangular cavity (7), the second section circulation channel (5), the middle cavity (17) and the third section circulation channel (5) inside the valve pipe body (1) are sequentially arranged.

6. A valve with flow rate control as claimed in claim 1, wherein: and connecting flanges (2) are welded and fixed on two sides of the valve pipe body (1).