CN220870147U

CN220870147U - Three-way ball valve

Info

Publication number: CN220870147U
Application number: CN202322309535.4U
Authority: CN
Inventors: 孙豪杰; 王开峰; 文松; 王才华; 陈永华
Original assignee: Zhejiang Zhongzhuo Automation Engineering Co ltd
Current assignee: Zhejiang Zhongzhuo Automation Engineering Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-04-30
Anticipated expiration: 2033-08-28

Abstract

The utility model relates to the technical field of valves, in particular to a three-way ball valve which comprises a valve body and a connecting pipe fixedly connected to the valve body, wherein a butt flange is arranged on the connecting pipe, a valve seat is fixedly arranged in the valve body, a valve core is rotatably arranged in the valve seat, a galvanized layer is fixedly arranged on the inner side of the valve seat, a smooth gasket is fixedly arranged in the connecting pipe, and a valve rod gasket and a valve rod are arranged on the valve core. The galvanized layer on the inner side of the valve seat is contacted with the upper end and the lower end of the valve core, when a flowing medium passes through the three-way valve, the galvanized layer and the valve core are contacted respectively, at the moment, the galvanized layer and the valve core form a primary battery structure, the galvanized layer is used as an anode to protect the valve core, the probability of corrosion of the surface of the valve core is greatly reduced, the contact area of the flowing medium and the galvanized layer can be reduced by the smooth gasket, the loss speed of the galvanized layer is further reduced, the corrosion resistance of the valve core is greatly improved, and the service life of the three-way valve is greatly prolonged.

Description

Three-way ball valve

Technical Field

The utility model relates to a ball valve, in particular to a three-way ball valve, and belongs to the technical field of valves.

Background

In biochemical industry and brewing industry, products need to be prepared according to proportion, a three-way ball valve plays roles of reversing, splitting and converging in an intersecting pipeline, and the three-way ball valve is a three-way rotary ball valve which is primarily used for blocking, distributing and changing the moving direction of a medium in a pipeline; the valve core of the flange three-way ball valve is L-shaped and T-shaped, so that the requirements of different production processes can be met; any conduit may be used as an inlet or outlet as desired; the L-shaped valve cuts off two of the three pipelines, and the T-shaped valve realizes the combination and separation of the three connecting pipelines;

In order to facilitate installation, the valve core is smaller than the inner cavity of the valve body, so that a cavity is formed between the valve core and the valve body, in the prior art, the inner cavity part of the valve and the valve seat are generally made into a whole body to be filled with PTFE, after the valve is assembled, a gap is not reserved in the valve cavity, no medium remains, as the pH value of medium flowing in the three-way ball valve is different, the surface of the valve core is in contact with the flowing medium for a long time, the surface of the valve core can be corroded, the surface of the valve core can be further recessed, the gap appears in the valve cavity, the valve rod is rotated by a worker, the problem of dead locking of the valve core can appear, and the service life of the three-way ball valve is reduced;

Accordingly, there is a need for an improved three-way ball valve that addresses the above-described problems.

Disclosure of utility model

The utility model aims to provide a three-way ball valve, wherein a galvanized layer on the inner side of a valve seat is contacted with the upper end and the lower end of a valve core, when a flowing medium passes through the three-way valve, the galvanized layer and the valve core are contacted respectively, the galvanized layer and the valve core form a primary battery structure, the galvanized layer is used as an anode to protect the valve core, the possibility of corrosion of the surface of the valve core is greatly reduced, a smooth gasket can reduce the contact area between the flowing medium and the galvanized layer, the loss speed of the galvanized layer is further reduced, the corrosion resistance of the valve core is greatly improved, and the service life of the three-way valve is greatly prolonged.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

The utility model provides a tee bend ball valve, includes valve body and fixed connection be in connecting pipe on the valve body, the connecting pipe is kept away from the one end fixedly connected with flange butt joint of valve body, the inside fixed mounting of valve body has the disk seat, the inside rotation of disk seat is provided with the case, the inboard of disk seat is fixed to be provided with the galvanizing coat, the inboard of galvanizing coat with the upper and lower both ends of case contact, the inside fixed mounting of connecting pipe has smooth packing ring, smooth packing ring with the outside of case offsets, the upper end fixed mounting of case has the valve rod gasket, the upper end fixed mounting of valve rod gasket has the valve rod.

Preferably, the valve body is filled with filler at the gaps on two sides of the valve rod.

Preferably, a packing gland is fixedly arranged at the upper end of the valve rod through a bolt, and the packing gland is arranged at the upper end of the packing.

Preferably, one end of the connecting pipe away from the butt flange is fixedly connected with a connecting pipe flange, and the connecting pipe flange is fixedly connected to the valve body through bolts.

Preferably, a flange gasket is fixedly arranged at the position of the valve body corresponding to the connecting pipe flange.

Preferably, the valve seats are four, and the valve seats are distributed at 90 degrees.

Preferably, a base is fixedly arranged on one side of the valve body, on which the connecting pipe is not arranged, a bottom cover is fixedly arranged on the outer side of the base through bolts, and the inner side of the base abuts against the outer side of the valve core.

Preferably, a spring washer is sleeved on the inner side of the bolt, and one side of the spring washer abuts against the outer side of the valve body.

The utility model has at least the following beneficial effects:

1. The galvanized layer on the inner side of the valve seat is contacted with the upper end and the lower end of the valve core, when a flowing medium passes through the three-way valve, the galvanized layer and the valve core are contacted respectively, at the moment, the galvanized layer and the valve core form a primary battery structure, the galvanized layer is used as an anode to protect the valve core, the probability of corrosion of the surface of the valve core is greatly reduced, the contact area of the flowing medium and the galvanized layer can be reduced by the smooth gasket, the loss speed of the galvanized layer is further reduced, the corrosion resistance of the valve core is greatly improved, and the service life of the three-way valve is greatly prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is an overall elevation of the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure of FIG. 1 at A-A' in accordance with the present utility model;

FIG. 3 is a schematic view of the cross-sectional structure of the portion B-B' of FIG. 1 according to the present utility model;

fig. 4 is an enlarged view of fig. 3C according to the present utility model.

In the figure, 1, a valve body; 2. a connecting pipe; 3. a butt flange; 4. a valve seat; 5. a valve core; 6. a zinc plating layer; 7. a smoothing washer; 8. a valve stem gasket; 9. a valve stem; 10. a filler; 11. a packing gland; 12. a connecting pipe flange; 13. a flange gasket; 14. a base; 15. a bottom cover; 16. and a spring washer.

Detailed Description

The following detailed description of embodiments of the present application will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present application can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

As shown in fig. 1-4, the three-way ball valve provided in this embodiment includes a valve body 1 and a connecting pipe 2 fixedly connected to the valve body 1, one end of the connecting pipe 2 away from the valve body 1 is fixedly connected with a butt flange 3, the interior of the valve body 1 is fixedly provided with a valve seat 4, the interior of the valve seat 4 is rotatably provided with a valve core 5, the interior of the valve seat 4 is fixedly provided with a galvanized layer 6, the interior of the galvanized layer 6 is contacted with the upper and lower ends of the valve core 5, a smooth gasket 7 is fixedly installed in the interior of the connecting pipe 2, the smooth gasket 7 is abutted against the outer side of the valve core 5, a valve rod gasket 8 is fixedly installed at the upper end of the valve rod gasket 8, the galvanized layer 6 at the interior of the valve seat 4 is contacted with the upper and lower ends of the valve core 5, when a circulating medium passes through the three-way valve, the galvanized layer 6 and the valve core 5 are contacted, the galvanized layer 6 and the valve core 5 form a primary battery structure at this moment, the galvanized layer 6 is used as an anode to protect the valve core 5, the probability of corrosion of the surface of the valve core 5 is greatly reduced, the smooth gasket 7 can reduce the contact area of the circulating medium with the galvanized layer 6, and further the service life of the three-way valve is greatly prolonged.

Further, as shown in fig. 2 and fig. 3, the gap at two sides of the valve rod 9 of the valve body 1 is filled with the filler 10, and the filler 10 can effectively improve the tightness of the valve body 1 at the valve rod 9, prevent the flowing medium from overflowing from the valve rod 9, and reduce the loss of the flowing medium; the upper end of valve rod 9 is provided with gland 11 through the bolt fastening, and gland 11 sets up in the upper end of packing 10, and gland 11 can make packing 10 more closely knit, also conveniently changes packing 10 through the dismantlement of bolt simultaneously.

Further, as shown in fig. 1, 2 and 3, a connecting pipe flange 12 is fixedly connected to one end of the connecting pipe 2 away from the butt flange 3, and the connecting pipe flange 12 is fixedly connected to the valve body 1 through bolts; the valve body 1 is fixedly provided with a flange gasket 13 corresponding to the position of the connecting pipe flange 12; the valve body 1 is not fixed and is provided with base 14 in one side of installing connecting pipe 2, and valve body 1 is provided with bottom 15 through the bolt fastening in the outside of base 14, and the inboard of base 14 offsets with the outside of case 5, can effectively improve the seal of valve body 1.

Still further, as shown in fig. 3, the valve seats 4 are four, and the valve seats 4 are distributed at 90 degrees, and form two-to-two symmetrical supports with the valve core 5, after the four valve seats 4 are installed, they are not interfered with each other, and no cavity is required to be ensured, the sealing compression amount of the valve seats 4 is consistent with the compression amount of the sealing strips of the two end covers, so that the stability of the internal structure of the valve body 1 can be improved, the transportation of the circulating medium is more efficient, and the production efficiency is improved.

In addition, as shown in fig. 2 and 3, the inner side of the bolt is sleeved with the spring washer 16, one side of the spring washer 16 abuts against the outer side of the valve body 1, and the spring washer 16 has a buffering function, so that on one hand, the bolt can be prevented from sliding, meanwhile, the pressure of a flowing medium on the valve body 1 can be reduced, and the practicability of the three-way valve is improved.

As shown in fig. 1 to 4, the three-way valve provided in this embodiment is based on the following principle:

One end fixedly connected with butt flange 3 of valve body 1 is kept away from to connecting pipe 2, valve seat 4 is fixed mounting in the inside of valve body 1, the inside rotation of valve seat 4 is provided with case 5, the inboard fixed galvanized layer 6 that is provided with of valve seat 4, the inboard of galvanized layer 6 contacts with the upper and lower both ends of case 5, the inside fixed mounting of connecting pipe 2 has smooth packing ring 7, smooth packing ring 7 offsets with the outside of case 5, valve rod gasket 8 is fixed to the upper end of case 5, valve rod 9 is fixed to the upper end of valve rod gasket 8, the galvanized layer 6 of valve seat 4 inboard contacts with the upper and lower both ends of case 5, when the circulation medium passes through the tee bend valve, can be in galvanized layer 6 and case 5 contact respectively, galvanized layer 6 and case 5 constitute primary cell structure this moment, galvanized layer 6 protects case 5 as the positive pole, the probability that the case 5 surface was corroded has greatly reduced, smooth packing ring 7 can reduce circulation medium and galvanized layer 6 area, and then reduced the speed of galvanized layer loss, the corrosion resistance of case 5 has been improved greatly, thereby the life of tee bend valve has been greatly prolonged.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

While the foregoing description illustrates and describes the preferred embodiments of the present utility model, it is to be understood that the utility model is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a tee bend ball valve, includes valve body (1) and fixed connection be in connecting pipe (2) on valve body (1), its characterized in that: the connecting pipe (2) is kept away from one end fixedly connected with butt flange (3) of valve body (1), the inside fixed mounting of valve body (1) has disk seat (4), the inside rotation of disk seat (4) is provided with case (5), the inboard of disk seat (4) is fixed to be provided with galvanized layer (6), the inboard of galvanized layer (6) with the upper and lower both ends of case (5) contact, the inside fixed mounting of connecting pipe (2) has smooth packing ring (7), smooth packing ring (7) with the outside of case (5) offsets, the upper end fixed mounting of case (5) has valve rod gasket (8), the upper end fixed mounting of valve rod gasket (8) has valve rod (9).

2. The three-way ball valve of claim 1, wherein: the valve body (1) is filled with a filler (10) at the gaps at the two sides of the valve rod (9).

3. The three-way ball valve of claim 1, wherein: the upper end of the valve rod (9) is fixedly provided with a packing gland (11) through a bolt, and the packing gland (11) is arranged at the upper end of the packing (10).

4. The three-way ball valve of claim 1, wherein: one end of the connecting pipe (2) far away from the butt flange (3) is fixedly connected with a connecting pipe flange (12), and the connecting pipe flange (12) is fixedly connected to the valve body (1) through bolts.

5. The three-way ball valve according to claim 4, wherein: a flange gasket (13) is fixedly arranged at the position of the valve body (1) corresponding to the connecting pipe flange (12).

6. The three-way ball valve of claim 1, wherein: the valve seats (4) are arranged in four, and the valve seats (4) are distributed at 90 degrees.

7. The three-way ball valve of claim 1, wherein: a base (14) is fixedly arranged on one side of the valve body (1) where the connecting pipe (2) is not arranged, a bottom cover (15) is fixedly arranged on the outer side of the base (14) through bolts, and the inner side of the base (14) is propped against the outer side of the valve core (5).

8. The three-way ball valve according to claim 7, wherein: the inner side of the bolt is sleeved with a spring washer (16), and one side of the spring washer (16) is propped against the outer side of the valve body (1).