CN214534698U

CN214534698U - Overflow valve capable of adjusting flow online

Info

Publication number: CN214534698U
Application number: CN202120790215.3U
Authority: CN
Inventors: 智佐长
Original assignee: SHENJIANG VALVE CO Ltd
Current assignee: SHENJIANG VALVE CO Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2021-10-29
Anticipated expiration: 2031-04-16

Abstract

The utility model provides a flow valve capable of adjusting flow online, which comprises a valve body, a liquid outlet channel and a liquid inlet channel; the valve clack assembly is movably arranged in the valve body and used for communicating or shutting the liquid outlet channel and the liquid inlet channel, an upper chamber communicated with the liquid inlet channel is arranged above the valve clack assembly, and liquid in the upper chamber can generate hydraulic pressure for driving the valve clack assembly to move towards a shut-off position; and the biasing element is arranged in the valve body, the biasing element applies a biasing force to the valve clack assembly to move towards the communication position, and the flow valve can automatically adjust the opening or closing of the valve according to the pressure of the flow passage.

Description

Overflow valve capable of adjusting flow online

Technical Field

The utility model relates to a flow control valve technical field, concretely relates to can be at excess flow valve of on-line adjustment flow.

Background

The pipeline system is used for conveying fluid media, a plurality of flow valves are used for controlling the connection or the disconnection of the pipeline system, but the operation of the valves is controlled by the process parameters of the valves, and the process parameters are set according to the normal operation of the device, so that once the pipeline system is broken to cause a large amount of fluid media to leak, the valve is difficult to be rapidly cut off by the set measures when the pipeline is broken.

The overflow valve is a safety valve capable of controlling the maximum flow, and provides an instant closing when a pipeline is broken or a line is failed, so as to prevent dangerous or flammable products from being released to the area, which may cause disastrous fire or explosion, and cause damage to personnel and equipment which is difficult to describe.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect of unable real-time just automatically regulated valve runner among the prior art to provide one kind can be according to runner pressure and the online adjustable flow's that automatically regulated valve opened or closed cross the flow valve.

Therefore, the utility model provides an overflow valve capable of adjusting flow on line, which comprises a valve body, a liquid outlet channel and a liquid inlet channel; the valve clack assembly is movably arranged in the valve body and used for communicating or shutting the liquid outlet channel and the liquid inlet channel, an upper chamber communicated with the liquid inlet channel is arranged above the valve clack assembly, and liquid in the upper chamber can generate hydraulic pressure for driving the valve clack assembly to move towards a shut-off position; a biasing member disposed within the valve body, the biasing member applying a biasing force to the valve flap assembly that moves in a direction toward the communication position.

Further: a valve cover is arranged above the valve body, and a manual adjusting assembly used for driving the valve clack assembly to move is arranged on the valve cover.

Further: the manual adjustment assembly includes: the adjusting screw is in threaded connection with the valve cover, and the end part of the adjusting screw is abutted against the valve clack assembly; and the nut is detachably arranged on the top of the valve cover and used for shielding the adjusting screw rod.

Further: the valve clack subassembly includes the valve rod and the valve clack body that set up from top to bottom, valve body inside still is provided with guide structure and lower guide structure, is suitable for respectively right the upper portion and the lower part of valve clack subassembly are led.

Further: the upper guide structure includes: the guide block is arranged at the top of the valve rod; the guide sleeve is arranged inside the valve body, the hollow part of the guide sleeve forms a holding groove for the guide block to move, and the inner side wall of the holding groove is attached to the outer side wall of the guide block.

Further: the lower guide structure includes: the disc is arranged between the liquid inlet channel and the liquid outlet channel, and the middle part of the disc is provided with a through hole; the flow guide sleeve is arranged at the bottom of the valve clack body, and the outer side wall of the flow guide sleeve is attached to the inner side wall of the disc.

Further: the side wall of the flow guide sleeve is provided with a plurality of water through openings, and the water through openings extend and are arranged along the circumferential direction of the flow guide sleeve.

Further: the biasing member is a pressure spring, the pressure spring is sleeved on the outer side surface of the valve rod, the top of the pressure spring abuts against the guide block, and the bottom of the pressure spring abuts against the bottom wall of the guide sleeve.

Further: the guide block pass through the screw with the valve rod assembly, just the guide block with be equipped with location structure between the valve rod, location structure includes the constant head tank at valve rod top, and locates the guide block bottom, with constant head tank adaptation connection's locating piece.

Further: the uide bushing is the cylinder, and its outside is equipped with seal structure, seal structure includes: the circular thin plate is sleeved outside the guide sleeve and arranged between the valve cover and the valve body; and the two sealing gaskets are respectively arranged on the upper side and the lower side of the circular thin plate.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a but online regulation flow's overflow valve, through the setting of valve clack subassembly and upper chamber, when the flow is less, the valve clack feed liquor end and the sum of the liquid pressure force of the interior liquid of cavity to the valve clack subassembly of liquid in the upper chamber are less than the elastic force of biasing piece to the valve clack subassembly with the liquid pressure force of liquid in the liquid outlet end, and the valve keeps the open mode, is in the intercommunication between liquid outlet channel and the feed liquor channel; when the flow rate is increased to a certain rated value due to failure, the sum of the throttling differential pressure acting force of the liquid inlet end and the liquid outlet end of the valve clack and the hydraulic pressure force of the liquid in the upper chamber to the valve clack assembly is greater than the elastic acting force of the biasing element to the valve clack assembly, so that the valve clack assembly is driven to move towards the closing direction, the valve is closed, the liquid outlet channel and the liquid inlet channel are disconnected, the valve is superior to the prior art, manual work or mechanical equipment is not needed for monitoring the flow rate of the valve, and the valve can be automatically closed.

2. The utility model provides a can online regulated flow's overflow valve through adjusting screw's setting, realizes the adjustment to valve clack subassembly position to adjust the size of flow through the governing valve door opening, satisfy user's different demands.

3. The utility model provides a but flow valve crosses of on-line adjustment flow, through pressure spring's setting, be greater than the elasticity of spring when the inside fluidic pressure of valve body, the fluid compresses the spring downwards for valve flap body downstream shuts off inlet channel and liquid outlet channel, when the inside fluid of valve body is less than the pressure of spring, fluidic pressure is difficult to compress the spring downwards, consequently just can't make valve flap body downstream shut off inlet channel and liquid outlet channel, so just be in normal condition between inlet channel and the liquid outlet channel.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the normal flow state of the on-line flow-adjustable overflow valve of the present invention;

FIG. 2 is a schematic structural view of the valve clack state when the flow of the over-flow valve capable of adjusting the flow on line is larger;

FIG. 3 is a schematic structural view of the shutoff state of the over-flow valve capable of on-line flow adjustment of the present invention;

FIG. 4 is a schematic structural diagram of a valve flap assembly of the online flow-adjustable overflow valve of the present invention;

fig. 5 is a schematic view of the three-dimensional structure of the over-flow valve capable of adjusting flow on line according to the present invention.

Reference numerals: 1. a valve body; 10. a valve cover; 11. a liquid outlet channel; 12. a liquid inlet channel; 2. a valve flap assembly; 21. a valve stem; 22. a valve flap body; 23. an upper chamber; 3. a biasing member; 4. a manual adjustment assembly; 41. adjusting the screw rod; 42. a nut; 5. an upper guide structure; 51. a guide block; 52. a guide sleeve; 53. accommodating grooves; 6. a lower guide structure; 61. a disc; 611. a through hole; 62. a flow guide sleeve; 7. a water inlet; 8. a screw; 81. a circular thin plate; 82. sealing gaskets; 9. a positioning structure; 91. positioning a groove; 92. and (5) positioning the blocks.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Examples

The embodiment provides an overflow valve capable of adjusting flow online, which comprises a valve body 1, a valve body and a valve body, wherein the valve body is provided with a liquid outlet channel 11 and a liquid inlet channel 12; the valve clack assembly 2 is movably arranged in the valve body 1 and used for communicating or shutting the liquid outlet channel 11 and the liquid inlet channel 12, an upper chamber 23 communicated with the liquid inlet channel 12 is arranged above the valve clack assembly 2, and liquid in the upper chamber 23 can generate hydraulic pressure for driving the valve clack assembly 2 to move towards a shut-off position; and a biasing member 3 disposed in the valve body 1, wherein the biasing member 3 applies a biasing force to the valve flap assembly 2 to move in a direction toward the communication position.

The specific improvement is as follows: as shown in fig. 1-3: the liquid inlet channel 12 and the liquid outlet channel 11 are arranged in the valve body 1, and in order to effectively control the flow change in the liquid inlet channel 12 and the liquid outlet channel 11, the valve clack assembly 2 is arranged at the joint of the liquid outlet channel 11 and the liquid inlet channel 12, an upper chamber 23 communicated with the liquid inlet channel 12 is arranged above the valve clack assembly 2, the upper chamber 23 is communicated with the liquid inlet channel 12, when the flow is small, the hydraulic pressure of the liquid in the upper chamber 23 to the valve clack assembly 2 is smaller than the elastic acting force of the biasing member 3 to the valve clack assembly 2, the valve is kept in an open state, and the liquid outlet channel 11 is communicated with the liquid inlet channel; when the flow rate is increased to a certain rated value due to a fault, the hydraulic pressure of the liquid in the upper chamber to the valve clack assembly is greater than the elastic acting force of the biasing element to the valve clack assembly, so that the valve clack assembly is driven to move towards the closing direction, the valve is closed, the liquid outlet channel 11 and the liquid inlet channel 12 are disconnected, when the valve clack assembly 2 is pressed downwards, the liquid outlet channel 11 can be blocked by the valve clack assembly 2, the valve is closed, and therefore the valve is superior to the prior art in that the valve can automatically adjust the opening and closing of the valve according to the size of the fluid flow rate.

As a switchable implementation: a valve cover 10 is arranged above the valve body 1, and the valve cover 10 is provided with a manual adjusting assembly 4 for driving the valve clack assembly 2 to move.

The specific improvement is as follows: as shown in fig. 1-3: the valve cover 10 is arranged above the valve body 1, the manual adjusting assembly 4 is arranged on the valve cover 10, and in the using process, a worker can manually rotate the manual adjusting assembly 4, so that the position of the valve clack assembly 2 is adjusted, and the purpose of adjusting the flow is finally achieved.

As a switchable implementation: the manual adjustment assembly 4 comprises: the adjusting screw rod 41 is in threaded connection with the valve cover 10, and the end part of the adjusting screw rod is abutted against the valve clack component 2; and the nut 42 is detachably arranged at the top of the valve cover 10 and used for shielding the adjusting screw rod 41.

The specific improvement is as follows: as shown in fig. 1-3: the manual adjusting assembly 4 comprises an adjusting screw rod 41 and a nut 42, the adjusting screw rod 41 is in threaded connection with the valve cover 10, the nut 42 is disassembled, and the position of the adjusting screw rod 41 is rotated by a common tool, so that the aim of adjusting the position of the valve clack assembly 2 is never achieved.

As a switchable implementation: the valve clack assembly 2 comprises a valve rod 21 and a valve clack body 22 which are arranged up and down, and an upper guide structure 5 and a lower guide structure 6 which are suitable for guiding the upper portion and the lower portion of the valve clack assembly 2 respectively are further arranged inside the valve body 1.

The specific improvement is as follows: as shown in fig. 4: valve clack subassembly 2 includes valve rod 21 and the valve clack body 22 that sets up from top to bottom, and guide structure 5 is set up to valve body 1 upper end, and guide structure 6 is down set up to valve body 1 lower extreme, goes up guide structure 5 and guide structure 6's effect down and lies in leading to valve clack subassembly 2's upper portion and lower part.

As a switchable implementation: the upper guide structure 5 includes: a guide block 51 provided on the top of the valve rod 21; the guide sleeve 52 is arranged inside the valve body 1, an accommodating groove 53 for the guide block 51 to move is formed in the hollow part of the guide sleeve, and the inner side wall of the accommodating groove 53 is attached to the outer side wall of the guide block 51.

The specific improvement is as follows: go up guide structure 5 and include uide bushing 52 and set up in the guide block 51 at valve rod 21 top, the inside cavity of uide bushing 52, hollow position is used for supplying guide block 51 and partial valve rod 21 to reciprocate, through the setting of guide block 51, can guide valve rod 21 vertical migration (because the laminating of the lateral wall of guide block 51 and the inside wall of holding tank 53, then guide block 51 can only vertical migration, finally makes valve rod 21 also can only vertical migration).

As a switchable implementation: the lower guide structure 6 includes: the disc 61 is arranged between the liquid inlet channel 12 and the liquid outlet channel 11, and the middle part of the disc 61 is provided with a through hole 611; the flow guide sleeve 62 is arranged at the bottom of the valve flap body 22, and the outer side wall of the flow guide sleeve 62 is attached to the inner side wall of the disc 61.

The specific improvement is as follows: the lower guiding structure 6 comprises a disc 61 and a through hole 611 arranged in the middle of the disc 61, the through hole 611 is located at the connecting position between the liquid inlet channel 12 and the liquid outlet channel 11, when the valve flap 22 is driven to move downwards by the excessive hydraulic pressure of the upper chamber 23, the valve flap 22 can block the through hole 611, and thus the fluid is difficult to reach the liquid outlet channel 11 from the liquid inlet channel 12 (the valve is closed).

As a switchable implementation: the side wall of the flow guide sleeve 62 is provided with a plurality of water through openings 7, and the water through openings 7 extend and are arranged along the circumferential direction of the flow guide sleeve 62.

The specific improvement is as follows: as shown in fig. 4 and 5: the side wall of the flow guide sleeve 62 is provided with a plurality of water through openings 7, and when the flow guide sleeve 62 is positioned at different positions, the flowing area of the liquid is different, so that the purpose of adjusting the flow can be achieved.

As a switchable implementation: the biasing member 3 is a pressure spring, and the pressure spring is sleeved on the outer side surface of the valve rod 21, and the top of the pressure spring is abutted against the guide block 51, and the bottom of the pressure spring is abutted against the bottom wall of the guide sleeve 52.

The specific improvement is as follows: the pressure spring is pushed upward by the pre-compressed reaction force and stops at the adjusting screw 41, when the hydraulic pressure in the upper chamber 23 is greater than the reaction force of the pressure spring, the guide block 51 is pushed downward by the hydraulic pressure, the pressure spring contracts and accumulates elastic potential energy, and when the hydraulic pressure in the upper chamber 23 is less than the reaction force of the pressure spring, the pressure spring releases the elastic potential energy to push the guide block 51 upward to the original position.

As a switchable implementation: guide block 51 through screw 8 with the assembly of valve rod 21, just guide block 51 with be equipped with location structure 9 between the valve rod 21, location structure 9 includes the constant head tank 91 at valve rod 21 top, and locates guide block 51 bottom, with constant head tank 91 adaptation connection's locating piece 92, during the assembly, earlier locate valve rod 21 with pressure spring cover on, insert the locating piece 92 of guide block 51 to the constant head tank 91 at valve rod 21 top again, assemble guide block 51 and valve rod 21 through screw 8 at last.

The specific improvement is as follows: a positioning groove 91 is provided at the top of the valve stem 21, and the positioning groove 91 is used to ensure that the guide block 51 and the valve stem 21 are coaxial.

As a switchable implementation: the guide sleeve 52 is cylindrical, and a sealing structure is provided at an outer side thereof, the sealing structure including: the circular thin plate 81 is sleeved outside the guide sleeve 52 and is arranged between the valve cover 10 and the valve body 1; and two sealing gaskets 82 respectively arranged at the upper side and the lower side of the circular thin plate 81.

The specific improvement is as follows: as shown in fig. 1: the guide sleeve 52 is externally provided with a sealing structure which comprises a circular thin plate 81 and a sealing gasket 82, and the sealing performance between the valve body 1 and the valve cover 10 can be improved through the arrangement of the sealing gasket 82 and the circular thin plate 81.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. An overflow valve capable of adjusting flow online is characterized by comprising

The valve body (1) is provided with a liquid outlet channel (11) and a liquid inlet channel (12);

the valve clack assembly (2) is movably arranged in the valve body (1) and is used for communicating or shutting the liquid outlet channel (11) and the liquid inlet channel (12), an upper chamber (23) communicated with the liquid inlet channel (12) is arranged above the valve clack assembly (2), and liquid in the upper chamber (23) can generate hydraulic pressure for driving the valve clack assembly (2) to move towards a shut-off position;

a biasing member (3) disposed in the valve body (1), the biasing member (3) applying a biasing force to the valve flap assembly (2) to move in a direction toward the communication position.

2. An on-line adjustable flow overflow valve as claimed in claim 1, wherein: a valve cover (10) is arranged above the valve body (1), and the valve cover (10) is provided with a manual adjusting assembly (4) used for driving the valve clack assembly (2) to move.

3. An on-line adjustable flow overflow valve as claimed in claim 2, wherein: the manual adjustment assembly (4) comprises:

the adjusting screw rod (41) is in threaded connection with the valve cover (10), and the end part of the adjusting screw rod can be abutted against the valve clack component (2);

and the nut (42) is detachably arranged at the top of the valve cover (10) and is used for shielding the adjusting screw rod (41).

4. An on-line adjustable flow overflow valve as claimed in any one of claims 1 to 3, wherein: valve clack subassembly (2) are including valve rod (21) and the valve clack body (22) that set up from top to bottom, valve body (1) inside still is provided with guide structure (5) and lower guide structure (6), is suitable for respectively right the upper portion and the lower part of valve clack subassembly (2) are led.

5. An on-line adjustable flow overflow valve as claimed in claim 4, wherein: the upper guide structure (5) comprises:

a guide block (51) provided on the top of the valve rod (21);

the guide sleeve (52) is arranged inside the valve body (1), the hollow part of the guide sleeve forms an accommodating groove (53) for the guide block (51) to move, and the inner side wall of the accommodating groove (53) is attached to the outer side wall of the guide block (51).

6. An on-line adjustable flow overflow valve as claimed in claim 4, wherein: the lower guide structure (6) comprises:

the disc (61) is arranged between the liquid inlet channel (12) and the liquid outlet channel (11), and the middle part of the disc (61) is provided with a through hole (611);

the flow guide sleeve (62) is arranged at the bottom of the valve clack body (22), and the outer side wall of the flow guide sleeve (62) is attached to the inner side wall of the disc (61).

7. An on-line adjustable flow overflow valve as claimed in claim 6, wherein: the side wall of the flow guide sleeve (62) is provided with a plurality of water through openings (7), and the water through openings (7) are arranged in an extending mode along the circumferential direction of the flow guide sleeve (62).

8. An on-line adjustable flow overflow valve as claimed in claim 5, wherein: the biasing member (3) is a pressure spring, the pressure spring is sleeved on the outer side surface of the valve rod (21), the top of the pressure spring is abutted against the guide block (51), and the bottom of the pressure spring is abutted against the bottom wall of the guide sleeve (52).

9. An on-line adjustable flow overflow valve as claimed in claim 8, wherein: guide block (51) through screw (8) with valve rod (21) assembly, just guide block (51) with be equipped with location structure (9) between valve rod (21), location structure (9) include constant head tank (91) at valve rod (21) top, and locate guide block (51) bottom, with constant head tank (91) adaptation connection's locating piece (92).

10. An on-line adjustable flow overflow valve as claimed in claim 5, wherein: the guide sleeve (52) is cylindrical, and a sealing structure is arranged on the outer side of the guide sleeve, and the sealing structure comprises:

the circular thin plate (81) is sleeved outside the guide sleeve (52) and arranged between the valve cover (10) and the valve body (1);

and the two sealing gaskets (82) are respectively arranged on the upper side and the lower side of the circular thin plate (81).