CN221628891U - Slide plate type control valve - Google Patents

Abstract

The utility model provides a sliding plate type control valve which comprises an upper valve body, a lower valve body, a valve rod and a valve plate, wherein flange connectors are respectively arranged on two sides of the lower valve body, round grooves are respectively arranged on two sides of the inner wall of the lower valve body, a first material protection ring seat and a second material protection ring seat which are stacked are arranged in the round grooves, a plurality of groups of grooves which are distributed circumferentially are arranged on one side of the second material protection ring seat, valve seat springs are embedded in the grooves, valve plates are clamped between the two groups of first material protection ring seats, two groups of material protection plates are fixed above a cavity of the lower valve body, the valve plates are clamped between the two groups of material protection plates, and locking pieces are arranged between the two groups of material protection plates. The valve seat spring pushes the second material protection ring seat to extrude the first material protection ring seat to be attached to the valve plate, and the locking piece pulls the two groups of material protection plates to be attached to the valve plate, so that the first material protection ring seat and the material protection plates can be better tightly pressed and sealed with the valve plate, and the valve seat spring and the locking piece can provide effective rebound allowance for the first material protection ring seat and the material protection plates working under the working conditions of high abrasion and high temperature alternation, so that the tightness of the control valve is improved.

Description

Slide plate type control valve

Technical Field

The utility model belongs to the technical field of control valves, and particularly relates to a sliding plate type control valve.

Background

In the fields of petrochemical industry, metallurgy and other industries, valves are required to regulate and switch pipelines for conveying liquid, gas or solid mixed media. The traditional ball valve, disc valve, eccentric rotary valve, gate valve, butterfly valve and the like have poor reliability and short service life, so the slide valve with high reliability and long service life is widely applied in the fields.

The existing slide valve comprises a valve body, a valve seat, a slide plate and other parts, wherein through holes corresponding to the positions of the valve seat, the valve body and the slide plate are formed in the valve seat so that gas, liquid, solid or mixed media thereof can flow through, and the slide plate can slide relatively with a sealing working surface of the valve seat under the driving of an actuating mechanism, so that the opening, closing and flow of the through holes are controlled. Two sides of the sliding plate are provided with clamping plates which are contacted with the surface of the sliding plate so as to improve the tightness.

The sliding plate valve is in service under complex, severe and even extreme working conditions, such as high temperature, strong corrosion, solid phase particle abrasion and the like, and abrasion, accumulation and corrosion are easy to occur due to frequent friction between the sliding plate and the clamping plate, so that the sliding plate is not tightly sealed, the durability is poor, leakage, locking and the like occur, and the safety of a pipeline system is affected.

Disclosure of utility model

Aiming at the defects pointed out in the background art, the utility model aims to provide a sliding plate type control valve with high wear resistance and high sealing performance.

In order to achieve the above object, the technical scheme of the present utility model is as follows: a slide plate type control valve comprises an upper valve body, a lower valve body, a valve rod and a valve plate, wherein the valve plate is positioned in a cavity of the lower valve body, and flange interfaces communicated with the cavity of the lower valve body are respectively arranged on two sides of the lower valve body; the valve is characterized in that a sealing assembly is nested at the top of the upper valve body, the valve rod penetrates through the sealing assembly and is movably connected with the valve plate, round grooves coaxial with a flange connector are respectively formed in two sides of the inner wall of the lower valve body, each round groove is internally provided with a left material protection ring seat and a right material protection ring seat which are stacked, the second material protection ring seat is close to the flange connector, a plurality of groups of circumferentially distributed grooves are formed in one side, facing the flange connector, of the second material protection ring seat, valve seat springs are embedded in the grooves, the lower end of the valve plate is clamped between the two groups of first material protection ring seats, the valve seat springs push the second material protection ring seat to extrude the first material protection ring seat to be attached to the valve plate, round through holes are formed in the valve plate, two groups of spaced material protection plates are fixed above a lower valve body cavity, the lower end of the material protection plate is attached to the outer wall of the first material protection ring seat, the valve plate is clamped between the two groups of material protection plates, a locking piece is arranged between the two groups of material protection plates, and the locking piece pulls the two groups of material protection plates to be attached to the valve plate.

Further, go up valve body one side and be provided with the last oiling mouth of intercommunication seal assembly, lower valve body one side is provided with the lower oiling mouth of two sets of intercommunication both sides circular grooves respectively, go up oiling mouth and lower oiling mouth all are connected with the oiling valve, the oil storage annular has been seted up to one side of first material protection ring seat towards the valve plate, first material protection ring seat opposite side is provided with the horizontal channel of multiunit circumference distribution and intercommunication oil storage annular, first material protection ring seat outer ring wall is provided with the vertical passageway of multiunit circumference distribution and intercommunication horizontal channel.

Further, the oiling valve comprises an oiling valve body, an oil storage cavity is formed in one end of the oiling valve body, an oiling valve rod is connected with the oil storage cavity in a threaded mode, an oiling cavity communicated with the oil storage cavity is formed in the other end of the oiling valve body, a sealing cover is connected with the right side of the oiling cavity in a threaded mode, an oiling cavity communicated with the oil storage cavity is formed in one side of the oiling valve body, an oiling nozzle is connected with the oiling nozzle in a threaded mode, a first ball seat is arranged at the lower end of the oiling nozzle in a threaded mode, a first steel ball is arranged in the first ball seat, a second ball seat is nested at the transition section of the oil storage cavity and the oiling cavity, a spring seat propping against the second ball seat is nested at the front end of the sealing cover, a second steel ball is arranged between the spring seat and the second ball seat, and a spring propping against the second steel ball is nested in the spring seat.

Further, an inverted T-shaped block is fixedly arranged at the lower end of the valve rod, an inverted T-shaped groove is formed in the middle of the top of the valve plate, the T-shaped groove is communicated with the front end face and the rear end face of the valve plate, the T-shaped block is movably embedded into the T-shaped groove, and the movement direction of the T-shaped block in the T-shaped groove is consistent with the movement direction of the valve seat spring.

Further, the upper sweeping ports communicated with the cavities of the upper valve body are formed in two sides of the top of the upper valve body, the lower sweeping ports communicated with the cavities of the lower valve body are formed in two sides of the bottom of the lower valve body, and sealing plugs are respectively plugged in the upper sweeping ports and the lower sweeping ports.

Further, the lower end of the material protection plate is provided with an arc-shaped groove, the arc-shaped groove is attached to the outer annular wall of the first material protection ring seat, and the upper end of the material protection plate is fixedly connected with the inner wall of the lower valve body cavity through a material pressing sheet.

Further, the lower end of the material protection plate is provided with a round hole matched with the outer annular wall of the first material protection ring seat, the material protection plate is sleeved on the outer annular wall of the first material protection ring seat through the round hole, and the upper end of the material protection plate is fixedly connected with the inner wall of the lower valve body cavity through a connecting sheet.

Further, the locking piece comprises fixing plates fixed on two sides of the material protection plate through bolts, a plurality of tension springs are fixedly connected to the fixing plates, and the other ends of the tension springs are fixedly connected with the fixing plates of the other material protection plate.

Further, the retaining member comprises a plurality of connecting columns arranged between two groups of material protection plates, internal threads are arranged at two ends of the connecting columns, a plurality of groups of countersunk holes are formed in two sides of the end face of each material protection plate, the material protection plates are fixedly connected with the connecting columns through bolts penetrating through the countersunk holes, and disc springs sleeved on the bolts are buried in the countersunk holes of one material protection plate.

After the technical scheme is adopted, the utility model has the beneficial effects that:

The valve seat spring pushes the second material protection ring seat to extrude the first material protection ring seat to be attached to the valve plate, a locking piece is arranged between the material protection plates, and the locking piece pulls the two groups of material protection plates to be attached to the valve plate, so that the first material protection ring seat and the material protection plates can be better tightly pressed and sealed with the valve plate, the valve seat spring and the locking piece can be applied to provide effective rebound allowance for the first material protection ring seat and the material protection plates working under high-abrasion and high-temperature alternating working conditions, and the tightness of the control valve is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a longitudinal cross-sectional view of the present utility model;

FIG. 3 is a transverse cross-sectional view of the present utility model;

FIG. 4 is an enlarged schematic view of FIG. 3 at A;

FIG. 5 is a schematic diagram of the structure of the oil filling valve;

FIG. 6 is another view of FIG. 3;

FIG. 7 is an embodiment of a retaining member;

FIG. 8 is another embodiment of a retaining member;

FIG. 9 is an enlarged schematic view at B in FIG. 7;

Fig. 10 is a schematic structural view of the connection column.

In the figure: 1. the upper valve body, 11, an upper cleaning port, 12, a sealing component, 13 and an upper oil filling port; 2. a lower valve body, 21, a lower cleaning port; 3. a valve stem, 31, T-block; 4. the oil filling valve comprises an oil filling valve body 41, an oil filling valve body 411, an oil storage cavity 412, an oil filling cavity 42, an oil filling valve rod 43, an oil filling nozzle 44, a first ball seat 441, a first steel ball 45, a sealing cover 46, a second ball seat 47, a spring seat 471, a spring 472 and a second steel ball; 5. a valve plate 51 and a T-shaped groove; 6. the material protection plate 61, the material pressing plate 62, the fixing plate 63, the tension spring 64, the connecting column 65, the counter bore 66 and the disc spring; 7. a first material protection ring seat 71 and an oil storage ring groove; 8. the second material protection ring seat, 81, grooves, 82 and valve seat springs.

Detailed Description

Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the utility model and are not configured to limit the utility model. It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the utility model. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The utility model will be further described in detail below with reference to the attached drawings and specific examples to facilitate a clearer understanding of the utility model.

The embodiment of the utility model provides a sliding plate type control valve, which comprises an upper valve body 1, a lower valve body 2, a valve rod 3 and a valve plate 5, wherein the valve plate 5 is provided with a circular through hole for medium circulation, the valve plate 5 is positioned in a cavity of the lower valve body 2, and flange interfaces for communicating the cavities of the lower valve body 2 are respectively arranged on two sides of the lower valve body 2. The top of the upper valve body 1 is nested with a sealing component 12, and the valve rod 3 passes through the sealing component 12 to be movably connected with the valve plate 5. The two sides of the top of the upper valve body 1 are provided with an upper cleaning opening 11 communicated with a cavity of the upper valve body, the two sides of the bottom of the lower valve body 2 are provided with a lower cleaning opening 21 communicated with a cavity of the lower valve body, and the upper cleaning opening 11 and the lower cleaning opening 21 are both plugged with sealing plugs which play a sealing role. When cleaning is needed, compressed air or cleaning liquid is injected from one upper cleaning port 11 to clean the medium in the control valve cavity, so that the functional integrity of each part in the control valve cavity is ensured.

The two sides of the inner wall of the lower valve body 2 are respectively provided with circular grooves coaxial with the flange interfaces, each circular groove is internally provided with a left-right stacked first material protection ring seat 7 and a second material protection ring seat 8, and the outer diameters of the first material protection ring seat 7 and the second material protection ring seat 8 are consistent with the inner diameters of the circular grooves. When the flange connector is placed, the second material protection ring seat 8 is installed close to the flange connector, and the first material protection ring seat 7 is placed on the outer side of the second material protection ring seat 8. The second material protection ring seat 8 is provided with a plurality of groups of circumferentially distributed grooves 81 towards one side of the flange interface, and valve seat springs 82 are embedded in the grooves 81. The valve plate 5 is clamped between the two groups of first material protection ring seats 7, and the valve seat spring 82 pushes the second material protection ring seat 8 to press the first material protection ring seat 7, so that the first material protection ring seat 7 is attached to the valve plate 5.

An inverted T-shaped block 31 is fixedly arranged at the lower end of the valve rod 3, and an inverted T-shaped groove 51 is formed in the middle of the top of the valve plate 5. The T-shaped groove 51 is communicated with the front end face and the rear end face of the valve plate 5, the T-shaped block 31 is movably embedded into the T-shaped groove 51, and the moving direction of the T-shaped block 31 in the T-shaped groove 51 is consistent with the moving direction of the valve seat spring 82.

In order to reduce the abrasion of the valve rod 3 and the valve plate 5 and prolong the service life, one side of the upper valve body 1 is provided with an upper oil filling port 13 leading to the sealing assembly 12, one side of the lower valve body 2 is provided with two groups of lower oil filling ports leading to circular grooves on two sides respectively, and the upper oil filling port 13 and the lower oil filling port are connected with an oil filling valve 4. The oil storage annular groove 71 has been seted up towards one side of valve plate 5 to first material protection ring seat 7, and first material protection ring seat 7 opposite side is provided with the horizontal channel of multiunit circumference distribution and intercommunication oil storage annular groove 71, and the outer annular wall of first material protection ring seat 7 is provided with the oil storage groove of round, and the oil storage groove tank bottom is provided with the vertical channel of multiunit circumference distribution and intercommunication horizontal channel. Lubricating oil is injected into the circular groove through the oil injection valve 4, the lubricating oil in the circular groove is injected into the oil storage groove, then enters the oil storage ring groove 71 along the vertical channel and the horizontal channel, finally, the lubricating oil is diffused on the contact surface of the valve plate 5 and the first material protection ring seat 7, and the tightness is improved while the abrasion is reduced.

The oiling valve 4 comprises an oiling valve body 41, one end of the oiling valve body 41 is provided with an oil storage cavity 411, the oil storage cavity 411 is in threaded connection with an oiling valve rod 42, the other end of the oiling valve body 41 is provided with an oiling cavity 412 communicated with the oil storage cavity 411, and the right side of the oiling cavity 412 is in threaded connection with a sealing cover 45. One side of the oiling valve body 41 is provided with an oiling cavity communicated with the oil storage cavity 411, the oiling cavity is in threaded connection with an oiling nozzle 43, the lower end of the oiling nozzle 43 is in threaded connection with a first ball seat 44, and a first steel ball 441 is arranged in the first ball seat 44. The transition section of the oil storage cavity 411 and the oil injection cavity 412 is nested with a second ball seat 46, the front end of the sealing cover 45 is nested with a spring seat 47 propped against the second ball seat 46, a second steel ball 472 is arranged between the spring seat 47 and the second ball seat 46, and a spring 471 propped against the second steel ball 472 is nested in the spring seat 47.

When the lubricating oil is filled, the oiling valve rod 42 is rotated to move backwards, the oiling device is connected to the oiling nozzle 43, the external pressure is larger than the internal pressure at the moment, the first steel ball 441 is pushed away, the lubricating oil enters the oil storage cavity 411, the second steel ball 472 is pushed to move and compress the spring 471 by the lubricating oil along with the continuous adding of the lubricating oil, and finally the lubricating oil enters the upper oiling port 13 or the lower oiling port through the sealing cover 45. After the oiling device is withdrawn, the external pressure is smaller than the internal pressure, the spring 471 ejects the second steel ball 472, the oil storage cavity 411 is blocked by the second steel ball 472, the first steel ball 441 returns to the original position, and the oil filling nozzle 43 is blocked by the first steel ball 441.

Two groups of material protection plates 6 with intervals are fixed above the cavity of the lower valve body 2, the lower ends of the material protection plates 6 are attached to the outer wall of the first material protection ring seat 7, and the valve plate 5 is clamped between the two groups of material protection plates 6. The blanking plate 6 has the following two fixing modes:

In one embodiment, an arc-shaped groove is formed at the lower end of the material protection plate 6, the arc-shaped groove is attached to the outer annular wall of the first material protection ring seat 7, the upper end of the material protection plate 6 is fixedly connected with the inner wall of the cavity of the lower valve body 2 through a material pressing sheet 61, the first material protection ring seat 7 determines the lower limit of the material protection plate 6, the material pressing sheet 61 determines the upper limit of the material protection plate 6, and at the moment, the material protection plate 6 can only be finely adjusted along the axial direction of the first material protection ring seat 7;

In another embodiment, the lower end of the material protection plate 6 is provided with a round hole matched with the outer annular wall of the first material protection ring seat 7, the material protection plate 6 is sleeved on the outer annular wall of the first material protection ring seat 7 through the round hole, the upper end of the material protection plate 6 is fixedly connected with the inner wall of the cavity of the lower valve body 2 through a connecting sheet, the first material protection ring seat 7 determines the upper limit and the lower limit of the material protection plate 6, the connecting sheet prevents the material protection plate 6 from rotating around the first material protection ring seat 7, and at the moment, the material protection plate 6 can only be finely adjusted along the axial direction of the first material protection ring seat 7.

A plurality of locking pieces are arranged between the two groups of material protection plates 6, and the locking pieces pull the two groups of material protection plates 6 to be attached to the valve plate 5. The blanking plate 6 has the following two ways:

In one embodiment, the locking piece comprises a fixed plate 62 fixed on two sides of the material protection plate 6 through bolts, a plurality of tension springs 63 are fixedly connected to the fixed plate 62, the other ends of the tension springs 63 are fixedly connected with the fixed plate 62 of the other material protection plate 6, and a sufficient rebound allowance is reserved between the material protection plate 6 and the valve plate 5 under the traction of the tension springs 63;

In another embodiment, the locking member includes a plurality of connecting posts 64 disposed between two sets of material protection plates 6, two ends of the connecting posts 64 are provided with internal threads, two sides of the end surface of each material protection plate 6 are provided with a plurality of sets of countersunk holes 65, the material protection plates 6 are fixedly connected with the connecting posts 64 through bolts passing through the countersunk holes 65, a disc spring 66 sleeved on the bolts is embedded in the countersunk holes 65 of one material protection plate 6, and under the reaction of the disc spring 66, a sufficient rebound allowance is reserved between the material protection plates 6 and the valve plate 5.

In accordance with the above embodiments of the utility model, these embodiments are not exhaustive of all details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The sliding plate type control valve comprises an upper valve body (1), a lower valve body (2), a valve rod (3) and a valve plate (5), wherein the valve plate (5) is positioned in a cavity of the lower valve body (2), and flange interfaces communicated with the cavity of the lower valve body (2) are respectively arranged on two sides of the lower valve body (2); the method is characterized in that: the utility model provides a valve plate locking device, including valve body (1), valve rod (3), valve plate (5), valve plate (8), valve plate (6) and retaining plate (6), valve plate (6) are located at the top of last valve body (1), the top nestification of valve body (1) has sealing assembly (12), valve rod (3) pass sealing assembly (12) and valve plate (5) swing joint, valve body (2) inner wall both sides are provided with respectively with the coaxial circular slot of flange interface, every circular slot is interior all to be provided with about the first material protection ring seat (7) of stacking up and second material protection ring seat (8), second material protection ring seat (8) are close to the flange interface, one side of second material protection ring seat (8) orientation flange interface is provided with multiunit circumference distributed recess (81), recess (81) embedded have disk seat spring (82), valve plate (5) lower extreme clamp is between two sets of first material protection ring seat (7), disk seat (8) push second material protection ring seat (7) make it laminate valve plate (5), valve plate (6) are located at the material protection ring seat (6) are located at the bottom of two sets, two sets of material protection plates (6) are located between two sets of material protection plates (6).

2. The slide plate control valve of claim 1, wherein: the oil storage ring comprises an upper valve body (1), an upper oil filling port (13) communicated with a sealing assembly (12) is arranged on one side of the upper valve body (1), two groups of lower oil filling ports respectively communicated with round grooves on two sides are arranged on one side of the lower valve body (2), the upper oil filling port (13) and the lower oil filling ports are both connected with an oil filling valve (4), an oil storage ring groove (71) is formed in one side, facing a valve plate (5), of a first material protection ring seat (7), a plurality of groups of horizontal channels which are circumferentially distributed and communicated with the oil storage ring groove (71) are arranged on the other side of the first material protection ring seat (7), and a plurality of groups of vertical channels which are circumferentially distributed and communicated with the horizontal channels are arranged on the outer ring wall of the first material protection ring seat (7).

3. The slide plate control valve of claim 2, wherein: the oiling valve (4) comprises an oiling valve body (41), an oiling cavity (411) is formed in one end of the oiling valve body (41), an oiling valve rod (42) is connected to the oiling cavity (411) in a threaded mode, an oiling cavity (412) communicated with the oiling cavity (411) is formed in the other end of the oiling valve body (41), a sealing cover (45) is connected to the right side of the oiling cavity (412) in a threaded mode, an oiling nozzle (43) is arranged on one side of the oiling valve body (41) in a threaded mode, a first ball seat (44) is threaded at the lower end of the oiling nozzle (43), a second ball seat (46) is arranged in the first ball seat (44) in a sleeved mode, a spring seat (47) propped against the second ball seat (46) is arranged at the front end of the sealing cover (45) in a sleeved mode, and a second ball seat (472) is arranged between the spring seat (47) and the second ball seat (46), and a second ball seat (472) is propped against the second ball seat (471) in the spring seat (47).

4. The slide plate control valve of claim 1, wherein: the valve is characterized in that an inverted T-shaped block (31) is fixedly arranged at the lower end of the valve rod (3), an inverted T-shaped groove (51) is formed in the middle of the top of the valve plate (5), the T-shaped groove (51) is communicated with the front end face and the rear end face of the valve plate (5), the T-shaped block (31) is movably embedded into the T-shaped groove (51), and the movement direction of the T-shaped block (31) in the T-shaped groove (51) is consistent with the movement direction of the valve seat spring (82).

5. The slide plate control valve of claim 1, wherein: the upper valve body (1) is characterized in that two sides of the top of the upper valve body (1) are provided with upper cleaning ports (11) communicated with the cavity of the upper valve body, two sides of the bottom of the lower valve body (2) are provided with lower cleaning ports (21) communicated with the cavity of the lower valve body, and both the upper cleaning ports (11) and the lower cleaning ports (21) are plugged with sealing plugs.

6. The slide plate control valve of claim 1, wherein: the lower extreme of material protection board (6) is provided with the arc wall, the arc wall is laminated mutually with the outer annular wall of first material protection ring seat (7), material protection board (6) upper end is through pressing tablet (61) and lower valve body (2) cavity inner wall fixed connection.

7. The slide plate control valve of claim 1, wherein: the lower extreme of guard plate (6) is provided with the round hole with outer rampart assorted of first guard ring seat (7), guard plate (6) are at the outer rampart of first guard ring seat (7) through the round hole cover, guard plate (6) upper end is through connection piece and lower valve body (2) cavity inner wall fixed connection.

8. A slide plate control valve according to any one of claims 6-7, characterized in that: the locking piece comprises fixing plates (62) fixed on two sides of the material protection plate (6) through bolts, a plurality of tension springs (63) are fixedly connected to the fixing plates (62), and the other ends of the tension springs (63) are fixedly connected with the fixing plates (62) of the other material protection plate (6).

9. A slide plate control valve according to any one of claims 6-7, characterized in that: the locking piece comprises a plurality of connecting columns (64) arranged between two groups of material protection plates (6), internal threads are arranged at two ends of each connecting column (64), a plurality of groups of countersunk holes (65) are formed in two sides of the end face of each material protection plate (6), each material protection plate (6) is fixedly connected with each connecting column (64) through bolts penetrating through the corresponding countersunk holes (65), and disc springs (66) sleeved on the bolts are buried in the countersunk holes (65) of one material protection plate (6).