CN214146686U

CN214146686U - Steel lining diaphragm valve

Info

Publication number: CN214146686U
Application number: CN202023012544.XU
Authority: CN
Inventors: 叶伯通; 卢冰; 李燕飞
Original assignee: Zhejiang Baitong Anticorrosion Equipment Co ltd
Current assignee: Zhejiang Baitong Anticorrosion Equipment Co ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-09-07
Anticipated expiration: 2030-12-15

Abstract

The utility model provides a steel lining diaphragm valve, which comprises a valve body, be equipped with the valve gap on the valve body, be equipped with valve rod and hand wheel on the valve gap, the front end of valve rod is equipped with the valve clack, be equipped with the diaphragm layer on the valve clack, be equipped with the runner in the valve body, be equipped with the inner liner on the internal surface of runner, the bottom of runner in the valve body upwards forms the arch, sealed cooperation between diaphragm layer and the arch on the valve clack, constitute by multilayer PTFE layer structure through the diaphragm layer, play protection cushion rubber, especially bottom PTFE with the fluid contact, adopt the buffering to hit PTFE, prevent bottom PTFE's damage, the inner liner is through embedding structure embedding valve body metal inner wall, can prevent that there is negative pressure or vacuum in the pipeline to lead to the backing layer to drop or inhale flat phenomenon.

Description

Steel lining diaphragm valve

Technical Field

The utility model relates to the technical field of valves, concretely relates to steel lining diaphragm valve.

Background

The PTFE layer of the valve body bottom of the existing steel lining diaphragm valve is easy to be impacted or worn during the long-term opening and closing of the valve clack in the long-term use process, so that the overall performance of the valve is influenced, and the PTFE layer in the valve body flow channel has negative pressure or vacuum in a pipeline to easily cause the lining layer to fall off or suck the shriveling phenomenon.

Disclosure of Invention

In order to solve the technical defect that prior art exists, the utility model provides a steel lining diaphragm valve.

The utility model discloses a technical solution be: the utility model provides a steel lining diaphragm valve, includes the valve body, the valve body on be equipped with the valve gap, the valve gap on be equipped with valve rod and hand wheel, the front end of valve rod be equipped with the valve clack, the valve clack on be equipped with the diaphragm layer, the valve body in be equipped with the runner, the internal surface of runner on be equipped with the inner liner, the valve body in the bottom of runner upwards form the arch, the diaphragm layer on the valve clack and protruding sealed cooperation between.

The diaphragm layer sequentially comprises a pad film and a diaphragm from top to bottom, and the diaphragm is in sealing fit with the bulges.

The valve clack on be equipped with the installation department, the diaphragm layer on be equipped with the mounting hole, the diaphragm layer pass through the bolt in the mounting hole and the installation department fixed connection on the valve clack.

The lining layer is a PTFE layer.

The pad membrane and the diaphragm are both made of PTFE materials.

The inner liner is provided with an embedded structure, and the embedded structure of the inner liner is embedded into the inner wall of the valve body.

The utility model has the advantages that: the utility model provides a steel lining diaphragm valve, which comprises a valve body, be equipped with the valve gap on the valve body, be equipped with valve rod and hand wheel on the valve gap, the front end of valve rod is equipped with the valve clack, be equipped with the diaphragm layer on the valve clack, be equipped with the runner in the valve body, be equipped with the inner liner on the internal surface of runner, the bottom of runner in the valve body upwards forms the arch, sealed cooperation between diaphragm layer and the arch on the valve clack, constitute by multilayer PTFE layer structure through the diaphragm layer, play protection cushion rubber, especially with the bottom PTFE of fluid contact, adopt the buffering to hit PTFE, prevent bottom PTFE's damage, the inner liner imbeds valve body metal inner wall through the embedding structure, can prevent that there is negative pressure or vacuum to lead to the backing layer to drop or inhale flat phenomenon in the pipeline.

Drawings

Fig. 1 is a sectional view of the structure of the present invention.

Fig. 2 is an explosion diagram of the structure of the present invention.

Wherein, the valve comprises a valve body 1, a valve cover 2, a valve rod 3, a hand wheel 4, a valve clack 5, a cushion membrane 6, a diaphragm 7, an inner lining layer 11, a bulge 12 and an embedded structure 13.

Detailed Description

Now combine fig. 1, fig. 2 to explain further the utility model discloses a steel lining diaphragm valve, including valve body 1, valve body 1 on be equipped with valve gap 2, valve gap 2 on be equipped with valve rod 3 and hand wheel 4, its characterized in that, valve rod 3's front end be equipped with valve clack 5, valve clack 5 on be equipped with the diaphragm layer, valve clack 5 on be equipped with the installation department, the diaphragm layer on be equipped with the mounting hole, the diaphragm layer pass through the bolt in the mounting hole and the installation department fixed connection on the valve clack 5. The diaphragm layer sequentially comprises a pad membrane 6 and a diaphragm 7 from top to bottom, and the diaphragm 7 is in sealing fit with the bulge 12. The pad membrane 6 and the diaphragm 7 are both made of PTFE materials. The valve body 1 in be equipped with the runner, the internal surface of runner on be equipped with inner liner 11, inner liner 11 be the PTFE layer. The bottom of the flow channel in the valve body 1 is upwards provided with a bulge 12, and the diaphragm layer on the valve clack 5 is in sealing fit with the bulge 12. The utility model discloses a diaphragm layer comprises multilayer PTFE layer structure, plays protection cushion rubber, especially with the bottom PTFE of fluid contact, adopts the buffering to hit PTFE, prevents bottom PTFE's damage.

The inner liner 11 on be equipped with embedded structure 13, the embedded structure 13 embedding valve body 1's of inner liner 11 inner wall. The inner liner is embedded into the metal inner wall of the valve body through the embedding structure, so that the phenomenon that the liner layer falls off or is shriveled due to negative pressure or vacuum in the pipeline can be prevented.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the present invention has been described in accordance with the above embodiments, the inventive concept is not limited to this embodiment, and any modification of the inventive concept will be included in the scope of the patent claims.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a steel lining diaphragm valve, includes valve body (1), valve body (1) on be equipped with valve gap (2), valve gap (2) on be equipped with valve rod (3) and hand wheel (4), its characterized in that, the front end of valve rod (3) be equipped with valve clack (5), valve clack (5) on be equipped with the diaphragm layer, valve body (1) in be equipped with the runner, the internal surface of runner on be equipped with inner liner (11), valve body (1) in the bottom of runner upwards form arch (12), valve clack (5) on diaphragm layer and arch (12) between sealed cooperation.

2. A steel-lined diaphragm valve according to claim 1, wherein the diaphragm layer comprises, in order from top to bottom, a backing diaphragm (6) and a diaphragm (7), the diaphragm (7) being in sealing engagement with the boss (12).

3. The steel-lined diaphragm valve of claim 1, wherein the valve flap (5) is provided with a mounting portion, the diaphragm layer is provided with a mounting hole, and the diaphragm layer is fixedly connected with the mounting portion on the valve flap (5) through a bolt in the mounting hole.

4. A steel-lined diaphragm valve according to claim 1, wherein the lining layer (11) is a PTFE layer.

5. A steel-lined diaphragm valve according to claim 2, wherein the backing membrane (6) and diaphragm (7) are both made of PTFE material.

6. A steel-lined diaphragm valve according to claim 1, wherein the lining layer (11) is provided with an embedding structure (13), and the embedding structure (13) of the lining layer (11) is embedded in the inner wall of the valve body (1).