CN112066036A

CN112066036A - Pipeline switching valve

Info

Publication number: CN112066036A
Application number: CN202011076468.0A
Authority: CN
Inventors: 杨坤; 吴重均
Original assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Current assignee: Research Institute of Physical and Chemical Engineering of Nuclear Industry
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2020-12-11
Anticipated expiration: 2040-10-10
Also published as: CN112066036B

Abstract

The invention discloses a pipeline switching valve which comprises a hollow valve body, a valve core and a rotating handle, wherein the valve core is arranged in the valve body, the rotating handle is connected with the top of the valve core, and a plurality of outlets are uniformly distributed on the valve wall of the valve body along the circumference; the valve core forms two valve core flow passages which are symmetrically arranged, and outlets at two ends of each valve core flow passage correspond to any two adjacent outlets. The invention provides a pipeline switching valve which is mainly used for meeting the design requirement that one pipeline needs to be communicated and the other pipeline needs to be closed in two selectable pipelines, reducing the complexity of pipeline design, reducing the operation difficulty and realizing quick selection and switching of pipelines.

Description

Pipeline switching valve

Technical Field

The invention belongs to the field of pipeline design, and particularly relates to a pipeline switching valve.

Background

In the conventional pipeline design, when two pipelines select a passage, the inlet and the outlet of two pipelines are generally required to be connected with stop valves, and the inlet and the outlet stop valves of one pipeline are closed and the inlet and the outlet stop valves of the other pipeline are opened, so that the pipeline selection is realized. The design has the disadvantages of more valves needing to be installed, more valve switches needing to be operated during use and higher requirement on familiarity of operators on the pipeline design process.

Disclosure of Invention

The invention aims to overcome the defects of the prior art that the number of valves installed when a plurality of pipelines are selected to be communicated and the operation is complex, and the invention aims to provide a pipeline switching valve.

The invention is realized by the following technical scheme:

a pipeline switching valve comprises a hollow valve body, a valve core arranged in the valve body and a rotating handle connected with the top of the valve core, wherein a plurality of outlets are uniformly distributed on the valve wall of the valve body along the circumference; the valve core forms two valve core flow passages which are symmetrically arranged, and outlets at two ends of each valve core flow passage correspond to any two adjacent outlets.

In the technical scheme, the top of the rotating handle is connected with a hand wheel.

In the above technical scheme, the hollow inner cavity of the valve body is spherical.

In the above technical solution, the valve core is spherical.

In the above technical solution, the number of the outlets is a double number.

In the above technical solution, an outlet pipe is provided outside the outlet.

In the above technical scheme, a connecting flange is arranged outside the outlet pipeline.

In the above technical scheme, the longitudinal section of the valve core flow passage is circular, and the diameter of the longitudinal section is directly matched with the outlet.

In the above technical solution, the valve core flow passage is curved in an arc shape.

The invention has the beneficial effects that:

the invention provides a pipeline switching valve which is mainly used for meeting the design requirement that one pipeline needs to be communicated and the other pipeline needs to be closed in two selectable pipelines, reducing the complexity of pipeline design, reducing the operation difficulty and realizing quick selection and switching of pipelines.

Drawings

FIG. 1 is a schematic perspective view of a pipeline switching valve according to the present invention;

FIG. 2 is a cross-sectional view of the line switching valve of the present invention;

FIG. 3 is a schematic view showing the piping connection in the state of connection of the No. I apparatus in example 1 of the present invention;

FIG. 4 is a schematic view showing the connection of piping in the state where the No. II apparatus is connected in example 1 of the present invention.

Wherein:

1 valve body 2 valve core

3 rotating handle 4 handwheel

5 outlet 6 outlet pipe

7 connecting flange 8 valve core flow passage

No. 9I equipment and No. 10 II equipment

11 main pipeline inlet and 12 main pipeline outlet

5a general inlet 5b I equipment inlet

5 cII equipment outlet 5d total outlet

No. 5e I equipment export No. 5f II equipment import

No. 8a I runner 8b II runner.

For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the pipeline switching valve of the present invention are further described below by referring to the drawings of the specification and the specific embodiments.

Example 1

In this embodiment, the pipeline switching valve is applied to a dual-device operation system, so as to connect the No. i device 9 and the No. ii device 10 to a main pipeline.

As shown in fig. 1 and 2, the pipeline switching valve includes a valve body 1, a valve core 2 disposed inside the valve body 1, and a rotation handle 3 connected to the top of the valve core 2, wherein the top of the rotation handle 3 is connected to a hand wheel 4.

Six outlets 5 are uniformly distributed on the valve wall of the valve body 1 along the circumference; the valve core 2 forms two symmetrically arranged valve core flow passages 8, and outlets at two ends of each valve core flow passage 8 correspond to any two adjacent outlets 5.

The hollow inner cavity of the valve body 1 is spherical.

The valve core 2 is spherical.

An outlet pipe 6 is arranged outside the outlet 5.

The outlet pipe 6 is externally provided with a connecting flange 7.

The longitudinal section of the valve core flow passage 8 is circular, and the diameter of the longitudinal section is directly matched with the outlet 5.

The valve core flow passage 8 is curved in an arc shape.

Example 2

Based on embodiment 1, the rotary handle 3 can be connected with a motor driving device for realizing automatic control, so as to realize automatic control of the valve.

Working procedure according to the invention (based on example 1):

firstly, a pipeline switching valve connects a device I9 and a device II 10 with a main pipeline in a mode as shown in fig. 3 or 4, a main pipeline inlet 11 is connected with a main inlet 5a, a main pipeline outlet 12 is connected with a main outlet 5d, an inlet and an outlet of the device I9 are connected with a device I inlet 5b and a device I outlet 5e on a valve body 1, and an inlet and an outlet of the device II 10 are connected with a device II inlet 5f and a device II outlet 5c on the valve body 1.

When the device 9I needs to be communicated with the main pipeline, as shown in fig. 3, the valve core 2 is rotated, and outlets at two ends of the flow channel 8a I are respectively communicated with the main inlet 5a and the device inlet 5b I; the outlets at two ends of the second flow passage 8b are respectively communicated with the main outlet 5d and the first equipment outlet 5e, and the first equipment 9 is communicated with the main pipeline flow passage at the moment.

When the No. II equipment 10 is required to be communicated with the main pipeline, as shown in figure 4, the valve core 2 is rotated, and outlets at two ends of the No. I flow passage 8a are respectively communicated with the main inlet 5a and the No. II equipment inlet 5 f; the outlets at two ends of the second flow passage 8b are respectively communicated with the main outlet 5d and the second equipment outlet 5c, so that the second equipment 10 is communicated with the main pipeline flow passage.

In the embodiment, the size of the valve is not fixed, the state that two paths are communicated cannot be realized, and the valve is generally used in the design of a pipeline in which one path of a double-loop pipeline is communicated and the other path of the double-loop pipeline is required to be closed.

The invention provides a pipeline switching valve, which reduces the complexity of pipeline design; the operation difficulty of pipeline switching is reduced; the switching time of the pipeline is reduced; the possibility of misoperation is reduced.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.

Claims

1. The utility model provides a pipeline switching valve, includes valve body (1), sets up in inside case (2) of valve body (1) and the rotation handle (3) of being connected with case (2) top, its characterized in that: a plurality of outlets (5) are uniformly distributed on the valve wall of the valve body (1) along the circumference; the valve core (2) forms two symmetrically arranged valve core flow channels (8), and outlets at two ends of each valve core flow channel (8) correspond to any two adjacent outlets (5).

2. The line switching valve of claim 1, wherein: the top of the rotating handle (3) is connected with a hand wheel (4).

3. The line switching valve of claim 1, wherein: the hollow inner cavity of the valve body (1) is spherical.

4. The line switching valve of claim 1, wherein: the valve core (2) is spherical.

5. The line switching valve of claim 1, wherein: the number of the outlets (5) is double.

6. The line switching valve of claim 5, wherein: an outlet pipeline (6) is arranged outside the outlet (5).

7. The line switching valve of claim 6, wherein: and a connecting flange (7) is arranged outside the outlet pipeline (6).

8. The line switching valve of claim 1, wherein: the longitudinal section of the valve core flow passage (8) is circular, and the diameter of the longitudinal section is directly matched with the outlet (5).

9. The line switching valve of claim 1, wherein: the valve core flow channel (8) is curved in an arc shape.