CN215214860U

CN215214860U - High-temperature-resistant diaphragm valve diaphragm

Info

Publication number: CN215214860U
Application number: CN202121446071.6U
Authority: CN
Inventors: 刘波; 王译涵
Original assignee: Nanjing Daolong Biotechnology Co ltd
Current assignee: Nanjing Daolong Biotechnology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-17
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a high temperature resistant diaphragm valve diaphragm, concretely relates to diaphragm technical field, including the diaphragm body, the diaphragm body is discoid, the diaphragm body includes first wearing layer, first anti-corrosion coating, first high temperature resistant layer, anti creep layer, the resistant high temperature layer of second, second anti-corrosion coating and second wearing layer, first wearing layer is established in the outside of diaphragm body, the second wearing layer is established at the most inboard of diaphragm body, the inboard at first wearing layer is established on first anti-corrosion coating, the inboard at the second wearing layer is established on second anti-corrosion coating, the inboard at first anti-corrosion coating is established on first high temperature resistant layer, the inboard at second anti-corrosion coating is established on the resistant high temperature layer of second, anti creep layer is established between first high temperature resistant layer and the resistant high temperature layer of second. The utility model discloses have good wear resistance, corrosion resisting property, creep resistance and high temperature resistance, tension resistance is strong, and structural stability is strong.

Description

High-temperature-resistant diaphragm valve diaphragm

Technical Field

The utility model relates to a diaphragm technical field, more specifically say, the utility model relates to a high temperature resistant diaphragm valve diaphragm.

Background

Diaphragm valves are made by installing a flexible diaphragm or combined diaphragms in the valve body and bonnet, the closing member of which is a compression device connected to the diaphragm. The valve seat can be in a weir shape or a pipe wall of a straight-through flow passage, the diaphragm is applied to a valve, a regulating valve, an automatic mechanical follow-up device, a switch and a counter of flow, pressure, differential motion, liquid level, constant temperature volume thermal compensation and the like,

the diaphragm sheet of the current diaphragm valve is made of nonmetal materials such as rubber, polytetrafluoroethylene and the like in the market, the use pressure is generally less than or equal to 1MPa, the working temperature is generally less than or equal to 180 ℃, the rubber and the polytetrafluoroethylene diaphragm sheet deform during high-temperature sterilization (at 120 ℃ or above) to generate a leakage phenomenon, and the diaphragm sheet cannot be used in a high-temperature environment. In view of the above, there is a need for a high temperature resistant diaphragm valve membrane.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a high temperature resistant diaphragm valve diaphragm to the diaphragm of the current diaphragm valve that proposes in solving above-mentioned background art often adopts non-metallic material to make, thereby uses the easy deformation production seepage phenomenon scheduling problem that takes place under high temperature environment.

In order to achieve the above object, the present invention provides the following technical solutions: a high-temperature-resistant diaphragm valve diaphragm comprises a diaphragm body, wherein the diaphragm body is disc-shaped and comprises a first wear-resistant layer, a first anti-corrosion layer, a first high-temperature-resistant layer, a creep-resistant layer, a second high-temperature-resistant layer, a second anti-corrosion layer and a second wear-resistant layer, the first wear-resistant layer is arranged at the outermost side of the diaphragm body, the second wear-resistant layer is arranged at the innermost side of the diaphragm body, the first anti-corrosion layer is arranged on the inner side of the first wear-resistant layer, the second anti-corrosion layer is arranged on the inner side of the second wear-resistant layer, the first high temperature resistant layer is arranged on the inner side of the first anti-corrosion layer, the second high temperature resistant layer is arranged on the inner side of the second anti-corrosion layer, the anti-creep layer is arranged between the first high-temperature-resistant layer and the second high-temperature-resistant layer, a mounting hole is formed in the center of the diaphragm body, and concentric circular reinforcing ribs are fixedly arranged on the upper surface and the lower surface of the diaphragm body.

In a preferred embodiment, the first wear resistant layer and the second wear resistant layer are both made of high manganese steel.

In a preferred embodiment, the first anti-corrosion layer and the second anti-corrosion layer are made of a zinc-nickel alloy material.

In a preferred embodiment, the first high temperature resistant layer and the second high temperature resistant layer are both made of metal tungsten.

In a preferred embodiment, the creep-resistant layer is made of nylon.

In a preferred embodiment, the edge of the diaphragm body is provided with positioning holes distributed annularly.

In a preferred embodiment, the thickness of the membrane body is 3.5mm, and the thickness of the first wear layer, the first corrosion resistant layer, the first high temperature resistant layer, the creep resistant layer, the second high temperature resistant layer, the second corrosion resistant layer and the second wear layer is 0.5 mm.

In a preferred embodiment, the outer sides of the circular reinforcing ribs are fixedly provided with sealing gaskets, the thickness of each circular reinforcing rib is 0.6mm, and the thickness of each sealing gasket is 0.5 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the first wearing layer in the outside of diaphragm body, set up the second wearing layer in the innermost of diaphragm body, when the diaphragm body is under bearing violent impact or contact stress, its surface can harden rapidly, and the inside still keeps extremely strong toughness, and outer hard and interior tough is both wear-resisting and shock-resisting, and the surface is strikeed the heavier, and the surface hardening is more abundant more, and the wearability is better; the first anti-corrosion layer is arranged in the first wear-resistant layer, the second anti-corrosion layer is arranged in the second wear-resistant layer, and the first anti-corrosion layer and the second anti-corrosion layer are both made of zinc-nickel alloy materials, so that the wear-resistant layer has excellent corrosion resistance, weldability, formability and stretchability; the first high-temperature resistant layer and the second high-temperature resistant layer are made of metal tungsten, the metal tungsten is high-melting-point metal, chemical properties are stable, the metal tungsten does not react with air and water at normal temperature, and the metal tungsten is insoluble in hydrochloric acid, sulfuric acid, nitric acid and alkali solution; the creep-resistant layer made of nylon has the advantages of strong rigid storage capacity, good creep resistance and higher thermal aging resistance in a wider temperature range.

Drawings

For a clearer explanation of the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and it is obvious for those skilled in the art to obtain other drawings according to these drawings.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is an exploded view of the present invention.

Description of reference numerals:

1. a diaphragm body; 101. a first wear resistant layer; 102. a first corrosion resistant layer; 103. a first high temperature resistant layer; 104. a creep resistant layer; 105. a second high temperature resistant layer; 106. a second anti-corrosion layer; 107. a second wear layer; 2. mounting holes; 3. a circular reinforcing rib; 4. positioning holes; 5. a gasket is provided.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the high temperature resistant diaphragm valve diaphragm of the embodiment comprises a diaphragm body 1, wherein the diaphragm body 1 is in a disc shape, the diaphragm body 1 comprises a first wear-resistant layer 101, a first anti-corrosion layer 102, a first high temperature resistant layer 103, a creep-resistant layer 104, a second high temperature resistant layer 105, a second anti-corrosion layer 106 and a second wear-resistant layer 107, the first wear-resistant layer 101 is arranged at the outermost side of the diaphragm body 1, the second wear-resistant layer 107 is arranged at the innermost side of the diaphragm body 1, the first anti-corrosion layer 102 is arranged at the inner side of the first wear-resistant layer 101, the second anti-corrosion layer 106 is arranged at the inner side of the second wear-resistant layer 107, the first high temperature resistant layer 103 is arranged at the inner side of the first anti-corrosion layer 102, the second high temperature resistant layer 105 is arranged at the inner side of the second anti-corrosion layer 106, and the creep-resistant layer 104 is arranged between the first high temperature resistant layer 103 and the second high temperature resistant layer 105, the center department of diaphragm body 1 is equipped with mounting hole 2 for carry out fixed connection with circular strengthening rib 3 and seal ring 5, the equal fixed mounting of upper surface and the lower surface of diaphragm body 1 has concentric circular strengthening rib 3, circular strengthening rib 3 can improve the toughness of diaphragm body 1, strengthens diaphragm body 1's shock resistance, prolongs its life.

The implementation scenario is specifically as follows: the utility model discloses in the use, first wearing layer 101 and second wearing layer 107 are established respectively in diaphragm body 1 the outside and the most inboard, can effectively strengthen diaphragm body 1's wear resistance, first anti-corrosion coating 102 and second anti-corrosion coating 106 are established respectively in the inboard of first wearing layer 101 and the inboard of second wearing layer 107, can effectively strengthen diaphragm body 1's corrosion resistance, first high temperature resistant layer 103 and second high temperature resistant layer 105 are established respectively in the inboard of first anti-corrosion coating 102 and the inboard of second anti-corrosion coating 106, can effectively strengthen diaphragm body 1's high temperature resistance, anti creep layer 104 is established at diaphragm body 1's center, effectively strengthens diaphragm body 1's anti creep resistance, prolongs diaphragm body 1's life.

Referring to the attached fig. 1-5 of the specification, in the high-temperature resistant diaphragm valve diaphragm of this embodiment, the first wear-resistant layer 101 and the second wear-resistant layer 107 are both made of high manganese steel, and the surface of the high manganese steel can be rapidly hardened under severe impact or contact stress, while the core still maintains extremely strong toughness, the hard outer and tough inner parts are both wear-resistant and impact-resistant, and the harder the surface is, the more the surface is hardened, the better the wear resistance is.

The first anti-corrosion layer 102 and the second anti-corrosion layer 106 are made of a zinc-nickel alloy material, and the zinc-nickel alloy material has excellent corrosion resistance and good weldability, formability and stretchability.

The first high temperature resistant layer 103 and the second high temperature resistant layer 105 are both made of metal tungsten, the metal tungsten is high-melting-point metal, chemical properties are stable, the metal tungsten does not react with air and water at normal temperature, and the metal tungsten is insoluble in hydrochloric acid, sulfuric acid, nitric acid and alkali solution.

The creep-resistant layer 104 is made of nylon, specifically nylon 4.6, and is characterized by strong rigid storage capacity, good creep resistance and better thermal aging resistance in a wider temperature range.

The thickness of the diaphragm body 1 is 3.5mm, the thicknesses of the first wear-resistant layer 101, the first anti-corrosion layer 102, the first high-temperature-resistant layer 103, the creep-resistant layer 104, the second high-temperature-resistant layer 105, the second anti-corrosion layer 106 and the second wear-resistant layer 107 are all 0.5mm, the thickness is moderate, and the diaphragm body has wear resistance, corrosion resistance, high-temperature resistance and creep resistance.

The implementation scenario is specifically as follows: the first wear-resistant layer 101 and the second wear-resistant layer 107 have good wear resistance and good toughness; the first anti-corrosion layer 102 and the second anti-corrosion layer 106 provide the membrane body 1 with excellent corrosion resistance; the first high-temperature-resistant layer 103 and the second high-temperature-resistant layer 105 enable the diaphragm body 1 to have stable chemical properties, high melting point and good high-temperature resistance; the creep-resistant layer 104 may extend the service life of the membrane body 1.

Locating hole 4 that is the annular and distributes is seted up to the edge of diaphragm body 1, is used for installing the utility model discloses, make its and diaphragm valve fixed connection.

Equal fixed mounting in the outside of circular strengthening rib 3 has seal ring 5, effectively strengthens the utility model discloses a leakproofness prevents that the vapor from getting into the utility model discloses an inside arouses rustly, and the thickness of circular strengthening rib 3 is 0.6mm simultaneously, seal ring 5's thickness is 0.5 mm.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant diaphragm valve diaphragm, includes diaphragm body (1), its characterized in that: the diaphragm body (1) is disc-shaped, the diaphragm body (1) comprises a first wear-resistant layer (101), a first anti-corrosion layer (102), a first high-temperature-resistant layer (103), a creep-resistant layer (104), a second high-temperature-resistant layer (105), a second anti-corrosion layer (106) and a second wear-resistant layer (107), the first wear-resistant layer (101) is arranged on the outermost side of the diaphragm body (1), the second wear-resistant layer (107) is arranged on the innermost side of the diaphragm body (1), the first anti-corrosion layer (102) is arranged on the inner side of the first wear-resistant layer (101), the second anti-corrosion layer (106) is arranged on the inner side of the second wear-resistant layer (107), the first high-temperature-resistant layer (103) is arranged on the inner side of the first anti-corrosion layer (102), the second high-temperature-resistant layer (105) is arranged on the inner side of the second anti-corrosion layer (106), and the creep-resistant layer (104) is arranged between the first high-temperature-resistant layer (103) and the second high-temperature-resistant layer (105), the diaphragm is characterized in that a mounting hole (2) is formed in the center of the diaphragm body (1), and concentric circular reinforcing ribs (3) are fixedly mounted on the upper surface and the lower surface of the diaphragm body (1).

2. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the first wear-resistant layer (101) and the second wear-resistant layer (107) are both made of high manganese steel.

3. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the first anti-corrosion layer (102) and the second anti-corrosion layer (106) are made of zinc-nickel alloy materials.

4. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the first high temperature resistant layer (103) and the second high temperature resistant layer (105) are both made of metal tungsten.

5. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the creep-resistant layer (104) is made of nylon.

6. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the edge of the diaphragm body (1) is provided with positioning holes (4) which are distributed annularly.

7. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the thickness of the diaphragm body (1) is 3.5mm, and the thicknesses of the first wear-resistant layer (101), the first anti-corrosion layer (102), the first high-temperature-resistant layer (103), the creep-resistant layer (104), the second high-temperature-resistant layer (105), the second anti-corrosion layer (106) and the second wear-resistant layer (107) are all 0.5 mm.

8. A high temperature resistant diaphragm valve diaphragm according to claim 1, wherein: the equal fixed mounting in outside of circular strengthening rib (3) has seal ring (5), and the thickness of circular strengthening rib (3) is 0.6mm simultaneously, the thickness of seal ring (5) is 0.5 mm.