CN111006052A

CN111006052A - Flat plate slotted rupture disk

Info

Publication number: CN111006052A
Application number: CN201911345342.6A
Authority: CN
Inventors: 刘井桥
Original assignee: Jiangsu Zhongxin Haobo Environmental Protection Technology Co ltd
Current assignee: Jiangsu Zhongxin Haobo Environmental Protection Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-04-14

Abstract

The invention discloses a flat plate slotted rupture disk, which comprises a rupture disk body, wherein the rupture disk body is of a 5-layer structure, two sides of the rupture disk body are provided with clamping devices, four corners of each clamping device are fixed through fastening pieces, and the 5-layer structure sequentially comprises a first sealing sleeve, a first PE film, a flame-retardant layer, a second PE film and a second sealing sleeve. This device adopts fire-retardant PE membrane in the intermediate level, has changed the tradition and has only the structure that the one deck is played paper, can solve the burning phenomenon in the blasting process, has reduced the potential safety hazard.

Description

Flat plate slotted rupture disk

Technical Field

The invention relates to the field of rupture disks, in particular to a flat plate slotted rupture disk.

Background

The gravity type explosion venting device is kept closed under the action of gravity through the valve cover, is not of a closed structure, and has the problem of gas leakage under the condition of extreme pressure, so that a rupture disk is required to be arranged at an explosion venting port, and the flat plate slotted rupture disk can directly cover the explosion venting port, so that a closed space is formed in a system and the system has good gas tightness.

The rupture disk device consists of two parts of a rupture disk and a holder. The rupture disk is an element for blasting and pressure relief under the condition of calibrated blasting pressure and temperature, and the holder is an auxiliary element for holding the rupture disk and is arranged at a proper position of the container. The rupture disk safety device has the advantages of simple structure, sensitivity, accuracy, no leakage, strong discharge capacity and the like. Can reliably work in viscous, high-temperature, low-temperature and corrosive environments, and is an ideal safety device of an ultrahigh pressure container. The rupture disk is an important safety device for preventing overpressure damage of pressure equipment, and is widely applied to industrial departments of chemical industry, petroleum, light industry, metallurgy, nuclear power, dust removal, fire protection, aviation and the like.

The middle layer of the existing rupture disk is provided with sound paper, so that the rupture disk is easy to spontaneously combust at a high temperature and has great potential safety hazard, and therefore, the rupture disk with the flame retardant effect is urgently needed.

Disclosure of Invention

The invention aims to provide a flat plate slotted rupture disk which can solve the problem of spontaneous combustion of the conventional rupture disk.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a dull and stereotyped type rupture disk that cracks, includes the rupture disk body, the rupture disk body is 5 layer structures, the both sides of rupture disk body are equipped with the holder to it is fixed to pass through the fastener in the four corners of holder, 5 layer structures are first big envelope, first PE membrane, fire-retardant layer, second PE membrane and second big envelope in proper order.

Preferably, the thicknesses of the first and second jackets are 0.3 mm, the thicknesses of the first and second PE films are 0.2 mm, and the thickness of the flame retardant layer is 0.1 mm.

Preferably, the flame-retardant layer is a flame-retardant PE film.

Preferably, the first wrapper and the second wrapper are made of 304 stainless steel.

Preferably, the size of the rupture disc body is 590 mm to 260 mm.

Compared with the prior art, the invention has the beneficial effects that:

the device adopts the flame-retardant PE film in the middle layer, changes the traditional structure that only one layer of sound paper is used, can solve the combustion phenomenon in the blasting process and reduces the potential safety hazard;

this device passes through fastener and holder for the device is laminated more, has strengthened the gas tightness, has improved the sensitivity to the pressure differential.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a schematic structural diagram of the device.

The reference numbers in the figures illustrate: 1. fastener, 2, holder, 3, first envelope, 4, first PE membrane, 5, fire-retardant layer, 6, second PE membrane, 7, second envelope.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.

In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.

As shown in fig. 1, a flat slotted rupture disk comprising a rupture disk body having a size of 590 mm by 260 mm, which can be modified according to the size of a vent hole, wherein the rupture disk body has a 5-layer structure, holders 2 are provided at both sides of the rupture disk body, and are fixed at four corners of the holders 2 by fasteners 1, the 5-layer structure is, in order, a first seal 3, a first PE film 4, a flame retardant layer 5, a second PE film 6, and a second jacket 7, the 5-layer structure is bonded together to form a rupture disk body, the first jacket 3 and the second jacket 7 have a thickness of 0.3 mm, the first PE film 4 and the second PE film 6 have a thickness of 0.2 mm, the flame retardant layer 5 has a thickness covering 0.1 mm, the flame retardant layer 5 is a flame retardant PE film, the PE film covers the flame retardant PE film entirely, and is packaged in 304 stainless steel outside the PE film, the 304 stainless steel is not easy to corrode and has good bending performance, and the whole rupture disk is fixed by the clamp 2 and the fastener 1 to form a complete rupture disk structure.

The middle layer of the existing blasting piece is only made of one layer of sound paper material, the middle layer of the device is a flame-retardant PE film, the device is used for being installed at a reserved explosion venting port, when the pressure difference between two sides of the blasting piece reaches 0.01MPa, the blasting piece is broken, the energy accumulated at the high-pressure side in a sealed environment is released, the temperature is extremely high at the moment when the blasting piece is broken, the existing blasting piece is extremely easy to burn, and through the change of the device, the problem is solved, only the blasting piece is broken, other potential safety hazards cannot be caused, and the property loss of personnel generated by explosion is controlled to a certain degree.

And this device passes through fastener and holder and closely pastes 5 layers of structures in with the rupture disc together, has strengthened the gas tightness of rupture disc, can guarantee operational environment's leakproofness, consequently more sensitive to the pressure differential, can in time release pressure.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a dull and stereotyped type rupture disk that cracks which characterized in that: including the rupture disk body, the rupture disk body is 5 layer structures, the both sides of rupture disk body are equipped with the holder to it is fixed through the fastener in the four corners of holder, 5 layer structures are first big envelope, first PE membrane, fire-retardant layer, second PE membrane and second big envelope in proper order.

2. The flat plate slotted rupture disk of claim 1, wherein: the thicknesses of the first jacket and the second jacket are 0.3 mm, the thicknesses of the first PE film and the second PE film are 0.2 mm, and the thickness of the flame-retardant layer is 0.1 mm.

3. The flat plate slotted rupture disk of claim 2, wherein: the flame-retardant layer is a flame-retardant PE film.

4. The flat plate slotted rupture disk of claim 3, wherein: the first wrapper and the second wrapper are made of 304 stainless steel.

5. The flat plate slotted rupture disk of claim 4, wherein: the size of the rupture disc body is 590 mm to 260 mm.