CN219911765U - Direct-current high-pressure stop valve - Google Patents

Abstract

The utility model relates to the technical field of valve devices, in particular to a direct-current high-pressure stop valve, which comprises a pipeline, wherein a sealing cover is communicated with the pipeline, a valve rod is connected in an internal thread mode of the sealing cover, a hand wheel is fixedly connected to the valve rod, a valve plug is fixedly connected to the other end of the valve rod, a valve seat is fixedly connected to the pipeline, a throttling mechanism for reducing liquid flow is arranged on the pipeline, the throttling mechanism comprises two limiting shells, the direct-current high-pressure stop valve is convenient to control the circulation of liquid in the pipeline through the cooperation of the pipeline, the sealing cover, the valve rod, the hand wheel, the valve plug and the valve seat, the flow of liquid in the pipeline is convenient to control through the throttling mechanism, impurities in the liquid in the pipeline are convenient to filter through a filtering mechanism, and when the direct-current high-pressure stop valve is used, the resistance caused by closing of the liquid to the valve plug can be reduced through controlling the flow of the liquid in the pipeline.

Description

Direct-current high-pressure stop valve

Technical Field

The utility model relates to the technical field of valve devices, in particular to a direct-current high-pressure stop valve.

Background

The utility model provides a direct-current high-pressure stop valve, which is characterized in that a flow channel of a valve body and a main flow channel are designed into a Y shape, so that the damage degree of a liquid flow state in a pipe is smaller than that of a conventional stop valve, the pressure loss through the valve is correspondingly reduced, the direct-current high-pressure stop valve is only suitable for full opening and full closing and is not allowed to be regulated and throttled, when the conventional direct-current high-pressure stop valve is used, a valve plug in the valve body and a valve seat in the valve body are required to be sealed by rotating a hand wheel, so that the circulation of liquid in a pipeline is controlled, but the liquid in the pipeline is still in a high-speed flow state in the operation closing process of the conventional direct-current high-pressure stop valve, the flow speed of the liquid is increased due to the fact that the valve plug is reduced when the valve plug is closed in a downward pressure, and the problem that the direct-current high-pressure stop valve is difficult to close or cannot close is solved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a direct-current high-pressure stop valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a straight-flow high-pressure stop valve, includes the pipeline, the intercommunication has the sealed cowling on the pipeline, threaded connection has the valve rod in the sealed cowling, fixedly connected with hand wheel on the valve rod, the other end fixedly connected with valve plug of valve rod, fixedly connected with disk seat in the pipeline is provided with the throttle mechanism that is used for reducing liquid flow on the pipeline, throttle mechanism includes two spacing shells, spacing shell fixedly connected with is on the pipeline, two of fixedly connected with fixed orifice plates in the pipeline rotate between the fixed orifice plate and be connected with the rotation orifice plate, fixedly connected with operation ring on the rotation orifice plate, operation ring and two spacing shell sliding connection are provided with the straining device who is used for filtering liquid on the pipeline.

In order to filter liquid in a pipeline, the improved filtering mechanism comprises a flow stopping cone which is fixedly connected in the pipeline, a plurality of branch flow pipes are communicated with the pipeline, a filtering box is communicated with the branch flow pipes, a sealing cover is arranged in the filtering box in a sliding mode, and a filtering block is fixedly connected to the sealing cover.

In order to prevent liquid in the pipeline from leaking from the sealing cover, the utility model is improved in that the sealing cover is fixedly connected with a sealing cushion block.

In order to improve the connection strength and the tightness of the sealing cover and the pipeline, the utility model improves that the sealing cover is welded on the pipeline.

In order to improve the tightness of the flow stopping cone, the fixed orifice plate and the rotary orifice plate, the utility model is improved in that the flow stopping cone, the fixed orifice plate and the rotary orifice plate are all made of rubber materials.

In order to avoid corrosion caused by direct contact of liquid in a pipeline with a valve seat and a valve plug, the utility model is improved in that the surfaces of the valve seat and the valve plug are respectively provided with a protective coating.

Compared with the prior art, the utility model provides the direct-current high-pressure stop valve, which has the following beneficial effects:

this direct current formula high pressure stop valve, through the cooperation of pipeline, sealed cowling, valve rod, hand wheel, valve plug and disk seat, the circulation of liquid in the control pipeline of being convenient for through throttle mechanism when controlling the liquid circulation, the flow of liquid in the pipeline, be convenient for filter out impurity that mingles with in the liquid in the pipeline through filtering mechanism, this device when using, can be through the flow of liquid in the control pipeline to reduce the resistance that causes when liquid is closed to the valve plug, it is comparatively simple and practical higher to use.

Drawings

FIG. 1 is a first schematic elevational view, partially in section, of the present utility model;

FIG. 2 is a schematic view of a first partial structure of the present utility model;

FIG. 3 is a second partial structural schematic drawing in partial section of the present utility model;

fig. 4 is a schematic view of a third partial structure with partial cross-section of the present utility model.

In the figure: 1. a pipe; 2. a sealing cover; 3. a valve stem; 4. a hand wheel; 5. a valve plug; 6. a valve seat; 7. a limit shell; 8. a fixed orifice plate; 9. rotating the orifice plate; 10. an operating ring; 11. a flow stop cone; 12. a branch flow pipe; 13. a filter box; 14. sealing cover; 15. a filter block; 16. and (5) sealing the cushion block.

Description of the embodiments

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.

Referring to fig. 1-4, a direct-current high-pressure stop valve comprises a pipeline 1, a sealing cover 2 is communicated with the pipeline 1, a valve rod 3 is connected to the sealing cover 2 in an internal thread manner, a hand wheel 4 is fixedly connected to the valve rod 3, a valve plug 5 is fixedly connected to the other end of the valve rod 3, a valve seat 6 is fixedly connected to the pipeline 1, a throttling mechanism for reducing liquid flow is arranged on the pipeline 1, the throttling mechanism comprises two limiting shells 7, the limiting shells 7 are fixedly connected to the pipeline 1, two fixed orifice plates 8 are fixedly connected to the pipeline 1, a rotary orifice plate 9 is connected between the two fixed orifice plates 8 in a rotary manner, an operating ring 10 is fixedly connected to the rotary orifice plate 9, the operating ring 10 is in sliding connection with the two limiting shells 7, a filtering mechanism for filtering liquid is arranged on the pipeline 1, the filtering mechanism comprises a flow stopping cone 11, a plurality of branch flow pipes 12 are communicated to the pipeline 1, a filtering box 13 is communicated to the branch flow pipes 12, a sealing cover 13 is arranged on the filtering box 13, and a sealing cover 14 is fixedly connected to the filtering box 14.

When the liquid circulation in the pipeline 1 is required to be closed and blocked, the rotary operation ring 10 drives the rotary orifice plate 9 to rotate, the rotary orifice plate 9 rotates between the two fixed orifice plates 8, gaps on the rotary orifice plate 9 and the fixed orifice plates 8 are staggered, the liquid flow is reduced, the rotary hand wheel 4 drives the valve rod 3 to rotate, the valve rod 3 is in threaded connection on the sealing cover 2, the valve rod 3 rotates inwards, the valve rod 3 drives the valve plug 5 to enter the valve seat 6, the valve plug 5 and the valve seat 6 form sealing to block the liquid circulation, when impurities are mixed in the liquid circulation, the valve plug 5 and the valve seat 6 are separated, the liquid is in a circulation state, when the liquid flows rightwards to the position of the flow stop cone 11, the liquid is split into the branch flow pipe 12 and enters the filter box 13 through the branch flow pipe 12, the liquid is filtered through the filter block 15, the impurities are filtered and adsorbed on the filter block 15, and the filtered liquid flows into the pipeline 1 through the branch flow pipe 12, and the liquid filtration can be completed.

In order to avoid the above problem, in this embodiment, the sealing cushion block 16 is fixedly connected in the sealing cover 2.

In practical use, it is found that when the liquid in the pipeline 1 is in a flowing state, the sealing cover 2 is also filled with the liquid, and the liquid flows out from the gap between the sealing cover 2 and the pipeline 1, so as to avoid leakage of the liquid, in this embodiment, the sealing cover 2 is welded on the pipeline 1.

In practical use, it is found that if the flow stopping cone 11, the fixed orifice plate 8 and the rotary orifice plate 9 are made of metal materials, a certain gap still exists on the mutual contact surface, and liquid is easy to leak out.

In actual use, it is found that the liquid directly contacts the valve seat 6 and the valve plug 5 to cause corrosion easily, so as to avoid the above problem, in this embodiment, the surfaces of the valve seat 6 and the valve plug 5 are all provided with a protective coating, so that the liquid is prevented from directly contacting the valve seat 6 and the valve plug 5, and corrosion is prevented.

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present utility model in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present utility model, and thus are only exemplary and not intended to limit the scope of the present utility model.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

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

Claims (6)

1. The utility model provides a straight-flow high-pressure stop valve, includes pipeline (1), its characterized in that: the utility model provides a pipeline (1) is gone up and is linked together there is sealed cowling (2), sealed cowling (2) internal thread connection has valve rod (3), fixedly connected with hand wheel (4) on valve rod (3), the other end fixedly connected with valve plug (5) of valve rod (3), fixedly connected with disk seat (6) in pipeline (1), be provided with the throttle mechanism that is used for reducing liquid flow on pipeline (1), throttle mechanism includes two spacing shells (7), spacing shell (7) fixedly connected with is on pipeline (1), two fixedly connected with orifice plate (8) in pipeline (1) rotation is connected with orifice plate (9) between fixed orifice plate (8), fixedly connected with operation ring (10) on orifice plate (9), operation ring (10) and two spacing shells (7) sliding connection are provided with the filter device who is used for filtering liquid on pipeline (1).

2. A straight-flow high-pressure shut-off valve according to claim 1, characterized in that: the filtering mechanism comprises a flow stopping cone (11), the flow stopping cone (11) is fixedly connected in a pipeline (1), a plurality of branch flow pipes (12) are communicated with the pipeline (1), a filtering box (13) is communicated with the branch flow pipes (12), a sealing cover (14) is arranged in the filtering box (13) in a sliding mode, and a filtering block (15) is fixedly connected to the sealing cover (14).

3. A straight-flow high-pressure shut-off valve according to claim 2, characterized in that: and a sealing cushion block (16) is fixedly connected in the sealing cover (2).

4. A straight-flow high-pressure shut-off valve according to claim 3, characterized in that: the sealing cover (2) is welded on the pipeline (1).

5. The direct-flow high-pressure stop valve according to claim 4, wherein: the flow stopping cone (11), the fixed orifice plate (8) and the rotary orifice plate (9) are all made of rubber materials.

6. The direct-flow high-pressure stop valve according to claim 5, wherein: the surfaces of the valve seat (6) and the valve plug (5) are provided with protective coatings.