CN209977386U

CN209977386U - Leakage-proof throttle valve for industrial valve

Info

Publication number: CN209977386U
Application number: CN201920811022.4U
Authority: CN
Inventors: 鲍南宇
Original assignee: Suzhou Valve Doctor Fluid Control Technology Co Ltd
Current assignee: Suzhou Valve Doctor Fluid Control Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-21
Anticipated expiration: 2029-05-31

Abstract

The utility model provides an industrial valve is with preventing leaking type choke valve, include: the valve body, the base and the sealing sleeve; the valve cover is arranged at the top end of the valve body and fixedly connected with the valve body through bolts; the valve rod nut is fixedly arranged on the inner side of the top end of the valve cover; the valve rod is arranged on the inner side of the valve rod nut in a threaded screwing mode, and the bottom of the valve rod is positioned in the valve body; the valve clack is sleeved at the bottom of the valve rod, and the hand wheel is fixedly arranged at the top end of the valve rod through a screw cap; the packing pad is embedded in the inner side of the upper part of the valve cover, and the packing is filled above the packing pad; the utility model discloses a to the improvement of industrial valve choke valve, it is reasonable to have structural design, and is sealed effectual, effectively prevents to leak, can install sealed sleeve according to the in-service use demand is nimble, and the shutoff is effectual when taking place to leak, need not whole change, advantage that the practicality is strong to effectual problem appearing and not enough in having solved current device.

Description

Leakage-proof throttle valve for industrial valve

Technical Field

The utility model relates to a choke valve technical field, more specifically the theory especially relates to an industrial valve is with preventing leaking type choke valve.

Background

A throttle valve is a valve that controls the flow of fluid by changing the throttle section or throttle length. The shape structure of the throttle valve is not different from that of the stop valve, but the shape of the opening and closing part of the throttle valve is different, and the opening and closing part of the throttle valve is mostly in a conical streamline shape, so that the flow and the pressure can be adjusted by changing the sectional area of a channel. The throttle valve serves to reduce the pressure of the medium in the event of a very large pressure drop.

The existing throttle valve can leak due to rusting and aging after being used for a period of time, particularly at the position of a valve rod, a gap can be formed when the valve rod is abraded and rusted, water leakage is caused, or the gap is formed due to the aging of a filler and a filler gasket, the sealing effect is general, and the existing throttle valve can only be replaced when leakage occurs, and the leakage is wasted.

In view of the above, the present invention provides a leakage-proof throttle valve for an industrial valve, which is improved in view of the conventional problems, and aims to solve the problems and improve the practical value by the technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an industrial valve is with preventing leaking type choke valve to solve the current choke valve that proposes among the above-mentioned background art can be because of rust, ageing emergence leakage after using a period, especially valve rod department, when valve rod department wearing and tearing, rust can form the gap, lead to leaking, or lead to leaking because of packing, the ageing formation gap of packing pad, sealed effect is comparatively general, and can only change it when taking place to leak, comparatively extravagant problem and not enough.

In order to achieve the above object, the utility model provides an industrial valve is with preventing leaking type choke valve is reached by following specific technological means:

a leak-proof throttle valve for an industrial valve, comprising: the valve comprises a valve body, a valve cover, a valve rod nut, a valve rod, a valve clack, a hand wheel, a packing pad, packing, a packing gland, a base, a sealing ring, a sealing sleeve and a raw material belt; the valve cover is arranged at the top end of the valve body and fixedly connected with the valve body through bolts; the valve rod nut is fixedly arranged on the inner side of the top end of the valve cover; the valve rod is arranged on the inner side of the valve rod nut in a threaded screwing mode, and the bottom of the valve rod is positioned in the valve body; the valve clack is sleeved at the bottom of the valve rod, and the hand wheel is fixedly arranged at the top end of the valve rod through a screw cap; the packing pad is embedded in the inner side of the upper part of the valve cover, and the packing is filled above the packing pad; the packing gland is arranged above the packing and is fixedly connected with the valve cover through a bolt; the base is positioned at the upper part of the valve cover, and the base and the valve cover are of an integrated structure; the sealing ring is embedded in the outer wall of the lower part of the base; the sealing sleeve is sleeved outside the base; the thread seal tape is wound on the bottom of the sealing sleeve, and the bottom of the sealing sleeve is connected with the packing gland in a screwed mode through threads.

As the further optimization of this technical scheme, the utility model relates to an industrial valve is with preventing leaking type choke valve the base is cylindric structure, and the base is located valve-stem nut's below to offer the ring form recess that is used for holding the sealing washer on the outer wall of base lower part, the sealing washer embedding is installed the inboard of recess.

As a further optimization of this technical scheme, the utility model relates to an industrial valve is with preventing leaking type choke valve the whole outward appearance of sealing washer is the ring form, and the outer wall of sealing washer and sealed telescopic inner wall butt to the sealing washer is installed two departments on the outer wall of base lower part.

As a further optimization of this technical scheme, the utility model relates to an industrial valve is with preventing leaking type choke valve sealing sleeve is ladder tubular structure, and sealing sleeve's upper portion embolias to install and set up to slider in the base lower part to set up the screw thread on the outer wall of sealing sleeve lower part.

As a further optimization of this technical scheme, the utility model relates to an industrial valve is with preventing leaking type choke valve the counter sink has been seted up to the intermediate position of gland, just set up the screw thread on the inner wall on counter sink upper portion.

As the further optimization of this technical scheme, the utility model relates to an industrial valve is with preventing leaking type choke valve the outer wall butt on outer wall and the gland upper portion of sealing sleeve lower part.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

1. the utility model discloses the base is cylindric structure, and the base is located valve-stem nut's below to offer the ring form recess that is used for holding the sealing washer on the outer wall of base lower part, the sealing washer embedding is installed the inboard of recess, the whole outward appearance of sealing washer are the ring form, and the outer wall of sealing washer and sealing sleeve's inner wall butt, and the setting of two departments is installed to the sealing washer on the outer wall of base lower part, makes things convenient for the installation of sealing washer, improves the sealed effect of base and sealing sleeve junction, prevents that the junction from taking place to leak.

2. The utility model discloses sealing sleeve is ladder tubular structure, and sealing sleeve's upper portion embolias to install and set up to slider in the base lower part to set up threaded on the outer wall of sealing sleeve lower part, the counter sink has been seted up to the intermediate position of gland, just set up the screwed setting on the inner wall on counter sink upper portion, make things convenient for the installation and the fixing of sealing sleeve bottom, form airtight space through sealing sleeve, gland, base and raw material area, prevent to leak, and can install in a flexible way through sealing sleeve's slip, install sealing sleeve before the pipeline circulation and can improve sealed effect, install sealing sleeve and can play good shutoff effect when taking place to leak, effectively prevent to leak.

4. The utility model discloses a to the improvement of industrial valve choke valve, it is reasonable to have structural design, and is sealed effectual, effectively prevents to leak, can install sealed sleeve according to the in-service use demand is nimble, and the shutoff is effectual when taking place to leak, need not whole change, advantage that the practicality is strong to effectual problem appearing and not enough in having solved current device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of the present invention;

FIG. 3 is a schematic view of the enlarged structure at the position B of the present invention

Fig. 4 is a schematic view of the sealing sleeve mounting structure of the present invention;

fig. 5 is a schematic view of the cross-sectional structure of the sealing sleeve according to the present invention;

fig. 6 is an enlarged schematic view of the structure at a of the present invention;

fig. 7 is a schematic view of the packing gland structure of the present invention.

In the figure: the valve comprises a valve body 1, a valve cover 2, a valve rod nut 3, a valve rod 4, a valve clack 5, a hand wheel 6, a packing pad 7, packing 8, a packing gland 9, a base 10, a sealing ring 11, a sealing sleeve 12 and a raw material belt 13.

Detailed Description

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

It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, the present invention provides a specific technical implementation of a leakage-proof throttle valve for an industrial valve:

a leak-proof throttle valve for an industrial valve, comprising: the valve comprises a valve body 1, a valve cover 2, a valve rod nut 3, a valve rod 4, a valve clack 5, a hand wheel 6, a packing pad 7, packing 8, a packing gland 9, a base 10, a sealing ring 11, a sealing sleeve 12 and a raw material belt 13; the valve cover 2 is arranged at the top end of the valve body 1, and the valve cover 2 is fixedly connected with the valve body 1 through bolts; the valve rod nut 3 is fixedly arranged on the inner side of the top end of the valve cover 2; the valve rod 4 is installed on the inner side of the valve rod nut 3 in a threaded screwing mode, and the bottom of the valve rod 4 is located inside the valve body 1; the valve clack 5 is sleeved at the bottom of the valve rod 4, and the hand wheel 6 is fixedly arranged at the top end of the valve rod 4 through a screw cap; the packing pad 7 is embedded in the inner side of the upper part of the valve cover 2, and the packing 8 is filled above the packing pad 7; the packing gland 9 is arranged above the packing 8, and the packing gland 9 is fixedly connected with the valve cover 2 through bolts; the base 10 is positioned at the upper part of the valve cover 2, and the base 10 and the valve cover 2 are of an integrated structure; the sealing ring 11 is embedded in the outer wall of the lower part of the base 10; the sealing sleeve 12 is sleeved outside the base 10; the raw material belt 13 is wound at the bottom of the sealing sleeve 12, and the bottom of the sealing sleeve 12 is connected with the packing gland 9 through screw thread screwing.

Specifically, the base 10 is of a cylindrical structure, the base 10 is located below the valve rod nut 3, an annular groove for accommodating the sealing ring 11 is formed in the outer wall of the lower portion of the base 10, and the sealing ring 11 is embedded in the groove.

Specifically, the overall appearance of the sealing ring 11 is annular, the outer wall of the sealing ring 11 abuts against the inner wall of the sealing sleeve 12, and two positions of the sealing ring 11 are mounted on the outer wall of the lower portion of the base 10.

Specifically, the sealing sleeve 12 is a stepped cylindrical structure, the upper portion of the sealing sleeve 12 is sleeved on the lower portion of the base 10 to form a sliding device, and the outer wall of the lower portion of the sealing sleeve 12 is provided with threads.

Specifically, a counter bore is formed in the middle of the gland 9, and a thread is formed on the inner wall of the upper portion of the counter bore.

Specifically, the outer wall of the lower portion of the seal sleeve 12 abuts against the outer wall of the upper portion of the packing gland 9.

The method comprises the following specific implementation steps:

during the use, pass through connecting bolt fixed mounting with the flange at valve body 1 both ends in the pipeline, twine the raw material area 13 on the outer wall of sealing sleeve 12 lower part, then slide sealing sleeve 12 downwards, connect fixedly with gland 9 through the screw thread mode of screwing down the lower part of sealing sleeve to make the outer wall of sealing sleeve 12 lower part and the outer wall butt on gland 9 upper portion, accomplish the installation.

When the pipeline transportation medium is corrosive or other dangerous liquid, the operation is inconvenient when leakage occurs, and the plugging is inconvenient, so the sealing sleeve 12 needs to be installed in advance; when the transport medium in the pipeline is water or other safe liquid, the sealing sleeve 12 can be installed when leakage occurs, the leakage position of the valve rod 4 is blocked, and the installation mode is flexible.

In summary, the following steps: according to the leakage-proof throttling valve for the industrial valve, the base is of a cylindrical structure and is positioned below the valve rod nut, the outer wall of the lower portion of the base is provided with a circular groove for containing the sealing ring, the sealing ring is embedded and installed on the inner side of the groove, the overall appearance of the sealing ring is circular, the outer wall of the sealing ring is abutted against the inner wall of the sealing sleeve, and the sealing ring is provided with two positions on the outer wall of the lower portion of the base, so that the installation of the sealing ring is facilitated, the sealing effect of the joint of the base and the sealing sleeve is improved, and the leakage of the joint is prevented; the sealing sleeve is of a stepped cylindrical structure, the upper portion of the sealing sleeve is sleeved on the lower portion of the base and is provided with a sliding device, the outer wall of the lower portion of the sealing sleeve is provided with threads, the middle position of the gland is provided with a counter bore, the inner wall of the upper portion of the counter bore is provided with the threads, the bottom of the sealing sleeve is convenient to mount and fix, a sealed space is formed through the sealing sleeve, the packing gland, the base and the raw material belt, leakage is prevented, the sealing sleeve can be flexibly mounted through sliding of the sealing sleeve, the sealing effect can be improved by mounting the sealing sleeve before pipeline circulation, and good plugging effect can be achieved by mounting the sealing sleeve when leakage occurs, so that leakage is effectively; through the improvement to the choke valve for industrial valve, it is reasonable to have a structural design, and is sealed effectual, effectively prevents to leak, can be according to the nimble sealed sleeve of installation of in-service use demand, the shutoff is effectual when taking place to leak, need not the overall change, and the practicality is strong advantage to effectual the current device of having solved go wrong with not enough.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A leak-proof throttle valve for an industrial valve, comprising: the valve comprises a valve body (1), a valve cover (2), a valve rod nut (3), a valve rod (4), a valve clack (5), a hand wheel (6), a packing pad (7), packing (8), a packing gland (9), a base (10), a sealing ring (11), a sealing sleeve (12) and a raw material belt (13); the method is characterized in that: the valve cover (2) is installed at the top end of the valve body (1), and the valve cover (2) is fixedly connected with the valve body (1) through bolts; the valve rod nut (3) is fixedly arranged on the inner side of the top end of the valve cover (2); the valve rod (4) is installed on the inner side of the valve rod nut (3) in a threaded screwing mode, and the bottom of the valve rod (4) is located inside the valve body (1); the valve clack (5) is sleeved at the bottom of the valve rod (4), and the hand wheel (6) is fixedly arranged at the top end of the valve rod (4) through a screw cap; the packing pad (7) is embedded in the inner side of the upper part of the valve cover (2), and the packing (8) is filled above the packing pad (7); the packing gland (9) is arranged above the packing (8), and the packing gland (9) is fixedly connected with the valve cover (2) through bolts; the base (10) is positioned at the upper part of the valve cover (2), and the base (10) and the valve cover (2) are of an integrated structure; the sealing ring (11) is embedded in the outer wall of the lower part of the base (10); the sealing sleeve (12) is sleeved outside the base (10); the thread seal tape (13) is wound at the bottom of the sealing sleeve (12), and the bottom of the sealing sleeve (12) is connected with the packing gland (9) in a screwed manner through threads.

2. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the base (10) is of a cylindrical structure, the base (10) is located below the valve rod nut (3), an annular groove used for containing a sealing ring (11) is formed in the outer wall of the lower portion of the base (10), and the sealing ring (11) is embedded and installed on the inner side of the groove.

3. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the whole appearance of the sealing ring (11) is annular, the outer wall of the sealing ring (11) is abutted to the inner wall of the sealing sleeve (12), and two positions of the sealing ring (11) are arranged on the outer wall of the lower part of the base (10).

4. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the sealing sleeve (12) is of a stepped cylindrical structure, the upper portion of the sealing sleeve (12) is sleeved on the lower portion of the base (10) and is provided with a sliding device, and threads are formed in the outer wall of the lower portion of the sealing sleeve (12).

5. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: a counter bore is formed in the middle of the gland (9), and threads are formed in the inner wall of the upper portion of the counter bore.

6. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the outer wall of the lower part of the sealing sleeve (12) is abutted against the outer wall of the upper part of the packing gland (9).