CN221257887U - A special valve for chlorine gas - Google Patents

Abstract

The utility model discloses a special valve for chlorine, which comprises a valve shell, a valve core and a control driving structure, wherein the control driving structure comprises a hollow shell, a connecting sleeve, an angular travel steering shaft, a corrugated sealing pipe, a bearing seat, a sealing compression ring and a plane bearing; the bottom end of the hollow shell is attached to the valve shell and welded, sealed and fixed; the outer wall of the connecting sleeve is integrally formed with a supporting convex ring; the valve rod on the valve core is connected with the angular travel steering shaft through a connecting sleeve; the bottom end of the corrugated sealing pipe is welded and sealed and fixed on the supporting convex ring, and the top end of the corrugated sealing pipe is welded and sealed and fixed on the bottom surface of the sealing compression ring; the angular travel steering shaft is connected to a planar bearing. The utility model has reasonable structural arrangement, adopts the corrugated sealing pipe, and the two ends of the corrugated sealing pipe are fixed by welding and sealing, so that the sealing performance is effectively improved, the angular travel steering shaft is matched with the corrugated sealing performance to realize leakage-free sealing, and is matched with the plane bearing, thereby being beneficial to improving the smoothness of the switch and the overall stability.

Description

Special valve for chlorine

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a special valve for chlorine.

Background

The valve is a control component in the fluid conveying system and has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like. Valves for fluid control systems range from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite diverse in variety and specification. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are also classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valve materials, etc. according to materials.

The chlorine needs to be controlled by using a valve in the process of transmission and use, the common valve can be corroded and has insufficient sealing performance, the valve special for the chlorine needs to be used, but the existing chlorine valve also has certain technical defects, such as limited sealing performance, easy leakage in long-time use, and unsmooth whole valve opening and closing, so that the whole sealing stability can be influenced, and the applicability and the practicability are limited.

Disclosure of Invention

The utility model aims to provide a special valve for chlorine, which is reasonable in structural arrangement and smooth in switching.

The technical scheme for realizing the purpose of the utility model is that the special valve for chlorine comprises a valve shell, a valve core and a control driving structure, wherein the control driving structure comprises a hollow shell, a connecting sleeve, an angular travel steering shaft, a corrugated sealing tube, a bearing seat, a sealing compression ring and a plane bearing;

the bottom end of the hollow shell is attached to the valve shell and welded, sealed and fixed;

the connecting sleeve, the angular travel steering shaft and the corrugated sealing tube are all arranged in the hollow shell;

the outer wall of the connecting sleeve is integrally formed with a supporting convex ring;

The valve rod on the valve core is connected with the angular travel steering shaft through a connecting sleeve;

The corrugated sealing pipe is sleeved on the outer side of the angular travel steering shaft, the bottom end of the corrugated sealing pipe is welded and sealed and fixed on the supporting convex ring, and the top end of the corrugated sealing pipe is welded and sealed and fixed on the bottom surface of the sealing compression ring;

The bearing seat is welded and sealed and fixed at the top of the hollow shell;

the plane bearing is arranged in the bearing seat, and the angular travel steering shaft is connected to the plane bearing.

Further preferred are: the bottom surface of the connecting sleeve is provided with a square inserting cavity, and the top surface of the connecting sleeve is provided with a square mounting cavity;

The valve rod is inserted into the square insertion cavity for positioning, and the bottom end of the angular travel steering shaft is inserted into the square installation cavity for positioning.

Further preferred are: the top of the bearing seat is also provided with a gland;

the gland is fixed at the top end of the bearing seat through bolts.

Further preferred are: a clamping ring groove is formed in the top of the inner wall of the hollow shell;

the sealing compression ring is abutted in the clamping ring groove, and the edge of the sealing compression ring is welded and sealed and fixed with the inner wall of the clamping ring groove.

Further preferred are: the number of the plane bearings is two;

a limiting convex ring is integrally formed on the outer wall of the angular travel steering shaft;

the two plane bearings are respectively arranged above and below the limiting convex ring.

Further preferred are: and a sealing ring is arranged at the joint of the bearing seat and the angular travel steering shaft.

Further preferred are: and a sealing gasket is arranged at the joint of the gland and the angular travel steering shaft.

Further preferred are: an instrument panel interface is arranged on the angular travel steering shaft;

The instrument panel interface is positioned in the bearing seat and below the limiting convex ring.

Further preferred are: at least one sealing sleeve is arranged between the outer wall of the angular travel steering shaft and the inner wall of the corrugated sealing tube.

The utility model has the positive effects that: the utility model has reasonable structural arrangement, adopts the corrugated sealing pipe, and the two ends of the corrugated sealing pipe are fixed with other structures through welding and sealing, thereby effectively improving the sealing performance, and the angular travel steering shaft is positioned in the corrugated sealing pipe, can effectively convert the straight travel into the angular travel, can realize leak-free sealing by matching with the corrugated sealing performance, improves the integral sealing stability and reliability, and is matched with the plane bearing, thereby being beneficial to improving the switch torsion smoothness, and further being capable of improving the integral stability, strong in applicability and good in practicability.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:

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

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

Fig. 3 is an enlarged schematic view of the structure at B in fig. 2.

Reference numerals: valve casing 1, control drive structure 2, hollow shell 21, connect external member 22, angular travel steering shaft 23, ripple sealed tube 24, bearing frame 25, sealing clamping ring 26, plane bearing 27, first welding point 3, support bulge loop 4, second welding point 5, third welding point 6, fourth welding point 7, square cartridge 8, square installation cavity 9, gland 10, bolt 11, clamping ring groove 12, spacing bulge loop 13, sealing washer 14, sealing washer 15, instrument panel interface 16, seal cover 17, valve rod 18, fifth welding point 19.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1 to 3, a valve special for chlorine comprises a valve housing 1, a valve core and a control driving structure 2, wherein in the embodiment, the valve housing and the valve core are conventional structures in the prior art, so the valve is not described in detail, and the valve is simply applied.

Meanwhile, the control driving structure comprises a hollow shell 21, a connecting sleeve 22, an angular travel steering shaft 23, a corrugated sealing tube 24, a bearing seat 25, a sealing compression ring 26 and a plane bearing 27; in this embodiment, the angular travel steering shaft is a conventional structure in the prior art, which mainly achieves the purpose of angular travel conversion, straight travel conversion and angular travel conversion, and the corrugated sealing tube is a metal material tube, wherein the number of the planar bearings can be one, two or more, and in this embodiment, the number of the planar bearings is two. The number of the plane bearings is two; a limiting convex ring 13 is integrally formed on the outer wall of the angular travel steering shaft; the two plane bearings are respectively arranged above and below the limiting convex ring. The smoothness of the switch torsion can be ensured, and the practicability is strong.

In this embodiment, the bottom end of the hollow casing is attached to the valve casing and welded and sealed and fixed, specifically, as shown in the first welding point 3 in the figure, so that the tightness of the joint between the hollow casing and the valve casing can be ensured. The connecting sleeve, the angular travel steering shaft and the corrugated sealing tube are all arranged in the hollow shell; the outer wall of the connecting sleeve is integrally formed with a supporting convex ring 4; the valve rod on the valve core is connected with the angular travel steering shaft through a connecting sleeve; the corrugated sealing pipe is sleeved on the outer side of the angular travel steering shaft, the bottom end of the corrugated sealing pipe is welded and sealed and fixed on the supporting convex ring, and as shown by a second welding point 5 in the figure, the top end of the corrugated sealing pipe is welded and sealed and fixed on the bottom surface of the sealing compression ring; as shown by the third weld 6. The bearing seat is welded and sealed and fixed at the top of the hollow shell; as shown by the fourth spot weld 7. The plane bearing is arranged in the bearing seat, and the angular travel steering shaft is connected to the plane bearing. Through the plane bearing, the on-off torsion of the angular travel steering shaft can be ensured to be smoother, and the integrity is more stable and reliable.

The bottom surface of the connecting sleeve piece is provided with a square inserting cavity 8, and the top surface of the connecting sleeve piece is provided with a square mounting cavity 9; when in installation, the valve rod 18 is inserted into the square insertion cavity for positioning, and the bottom end of the angular travel steering shaft is inserted into the square installation cavity for positioning. Through the structure, the convenience of connection of the two can be ensured, and meanwhile, the connection tightness can be improved.

The top of the bearing seat is also provided with a gland 10; the gland is fixed at the top end of the bearing seat through a bolt 11. The top of the inner wall of the hollow shell is provided with a clamping ring groove 12; the sealing compression ring is abutted in the clamping ring groove, and the edge of the sealing compression ring is welded and sealed and fixed with the inner wall of the clamping ring groove. As in the fifth weld 19.

A sealing ring 14 is arranged at the joint of the bearing seat and the angular travel steering shaft. A sealing gasket 15 is arranged at the joint of the gland and the angular travel steering shaft. An instrument panel interface 16 is arranged on the angular travel steering shaft; the instrument panel interface is positioned in the bearing seat and below the limiting convex ring. In this embodiment, at least one sealing sleeve 17 is disposed between the outer wall of the angular travel steering shaft and the inner wall of the bellows. By adopting the structure, the sealing performance and the stable reliability of the joint can be ensured, and the practicability is strong.

The utility model has the positive effects that: the utility model has reasonable structural arrangement, adopts the corrugated sealing pipe, and the two ends of the corrugated sealing pipe are fixed with other structures through welding and sealing, thereby effectively improving the sealing performance, and the angular travel steering shaft is positioned in the corrugated sealing pipe, can effectively convert the straight travel into the angular travel, can realize leak-free sealing by matching with the corrugated sealing performance, improves the integral sealing stability and reliability, and is matched with the plane bearing, thereby being beneficial to improving the switch torsion smoothness, and further being capable of improving the integral stability, strong in applicability and good in practicability.

The standard components used in this embodiment may be purchased directly from the market, but the nonstandard structural components described in the specification may also be obtained directly by unambiguous processing according to the common general knowledge in the prior art, and meanwhile, the connection manner of each component adopts the conventional means mature in the prior art, and the machinery, the components and the equipment all adopt the conventional types in the prior art, so that no specific description will be made here.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.

Claims (9)

1. The utility model provides a special valve of chlorine, includes valve casing, case and control drive structure, its characterized in that: the control driving structure comprises a hollow shell, a connecting sleeve, an angular travel steering shaft, a corrugated sealing tube, a bearing seat, a sealing compression ring and a plane bearing;

the bottom end of the hollow shell is attached to the valve shell and welded, sealed and fixed;

the connecting sleeve, the angular travel steering shaft and the corrugated sealing tube are all arranged in the hollow shell;

the outer wall of the connecting sleeve is integrally formed with a supporting convex ring;

The valve rod on the valve core is connected with the angular travel steering shaft through a connecting sleeve;

The corrugated sealing pipe is sleeved on the outer side of the angular travel steering shaft, the bottom end of the corrugated sealing pipe is welded and sealed and fixed on the supporting convex ring, and the top end of the corrugated sealing pipe is welded and sealed and fixed on the bottom surface of the sealing compression ring;

The bearing seat is welded and sealed and fixed at the top of the hollow shell;

the plane bearing is arranged in the bearing seat, and the angular travel steering shaft is connected to the plane bearing.

2. A valve dedicated to chlorine as defined in claim 1, wherein: the bottom surface of the connecting sleeve is provided with a square inserting cavity, and the top surface of the connecting sleeve is provided with a square mounting cavity;

The valve rod is inserted into the square insertion cavity for positioning, and the bottom end of the angular travel steering shaft is inserted into the square installation cavity for positioning.

3. A valve dedicated to chlorine as defined in claim 2, wherein: the top of the bearing seat is also provided with a gland;

the gland is fixed at the top end of the bearing seat through bolts.

4. A chlorine dedicated valve as defined in claim 3, wherein: a clamping ring groove is formed in the top of the inner wall of the hollow shell;

the sealing compression ring is abutted in the clamping ring groove, and the edge of the sealing compression ring is welded and sealed and fixed with the inner wall of the clamping ring groove.

5. A chlorine dedicated valve as defined in claim 4, wherein: the number of the plane bearings is two;

a limiting convex ring is integrally formed on the outer wall of the angular travel steering shaft;

the two plane bearings are respectively arranged above and below the limiting convex ring.

6. A chlorine dedicated valve as defined in claim 5, wherein: and a sealing ring is arranged at the joint of the bearing seat and the angular travel steering shaft.

7. The chlorine dedicated valve as defined in claim 6, wherein: and a sealing gasket is arranged at the joint of the gland and the angular travel steering shaft.

8. The chlorine dedicated valve as defined in claim 7, wherein: an instrument panel interface is arranged on the angular travel steering shaft;

The instrument panel interface is positioned in the bearing seat and below the limiting convex ring.

9. The chlorine dedicated valve as defined in claim 8, wherein: at least one sealing sleeve is arranged between the outer wall of the angular travel steering shaft and the inner wall of the corrugated sealing tube.