Design and process of regular-arch-shaped membrane

Abstract

The invention belongs to the field of diaphragms, and particularly relates to a regular-arch-shaped diaphragm design which comprises an upper forming die, a lower forming die and a diaphragm body, the lower forming die is arranged at the bottom end of the upper forming die, the diaphragm body is arranged between the upper forming die and the lower forming die, the middle working area of the diaphragm body is in a regular arch shape, and the inclined edge of the outer ring of the diaphragm body is 45 degrees. The contact part of the diaphragm main body and an external part is arc-shaped, and the diaphragm raw material is a hard pure copper sheet with the thickness of 0.5 mm. The diaphragm can be used as a bottleneck sealing diaphragm of a fire extinguishing and explosion suppression bottle. The device has the characteristics of stable bursting pressure, large breaking area, high high and low temperature safety, simple structure, convenience in processing and the like. The diaphragm is made of a pure copper material, is in a regular arch shape as a whole and is processed through the processes of annealing, pressure forming, tempering and the like, and the problems that the product quality and safety are affected due to the fact that the breaking area of an existing fire extinguishing and explosion suppression bottle diaphragm is unstable and the diaphragm is possibly broken at high temperature are solved.

Description

Technical Field

[0001] The invention belongs to the field of diaphragms, and in particular to a design and process of a positive arch diaphragm. Background Art

[0002] Fire extinguishing and explosion suppression bottles need to spray out fire extinguishing agents quickly due to explosion suppression requirements. Currently, fire extinguishing and explosion suppression bottles all use large-caliber nozzles and are sealed with thin film sheets. When in use, they are blasted with electric explosive tubes to break the membrane and spray out the fire extinguishing agent.

[0003] Existing fire extinguishing and explosion suppression bottle sealing diaphragms mostly use flat diaphragms, which deform when subjected to the pressure inside the bottle. The electric explosion tube breaks the diaphragm unevenly and often cannot be fully opened, resulting in a smaller nozzle and longer spraying time. When part of the diaphragm breaks, the diaphragm is completely broken along the pressure edge, and the whole is impacted by the strong power inside the bottle and flies out, which may cause personal injury or equipment damage.

[0004] To this end, the present invention provides a positive arch diaphragm design and process. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a positive arch diaphragm design described in the present invention includes an upper molding die, a lower molding die and a diaphragm body, the bottom end of the upper molding die is provided with a lower molding die, and the diaphragm body is provided between the upper molding die and the lower molding die.

[0007] Preferably, the middle working area of ​​the diaphragm body is in a positive arch shape, the outer ring bevel of the diaphragm body is °, and the contact portion between the diaphragm body and the external part is in an arc shape.

[0008] A process for designing a positive arch diaphragm, the process comprising the following steps:

[0009] S1, annealing process, keep the 0.5mm thick hard pure copper sheet at 500℃ for 10min-15min;

[0010] S2, molding process, place the copper disc between the upper and lower molds of the mold, press it with screws, connect the water pressure equipment under the molding mold, apply 8MPa water pressure, and maintain the pressure for 10 minutes;

[0011] S3, tempering process, the formed diaphragm is tempered, the temperature is controlled at 200℃-250℃, and the temperature is kept for 2h-3h.

[0012] The beneficial effects of the present invention are as follows:

[0013] The positive arch diaphragm design and process described in the present invention can be used as a bottle mouth sealing diaphragm for fire extinguishing and explosion suppression bottles. It has the characteristics of stable bursting pressure, large bursting area, high high and low temperature safety, simple structure, and convenient processing. The diaphragm is made of pure copper material and is in a positive arch shape as a whole. It is processed by annealing, pressure forming, tempering and other processes, which solves the problems of existing fire extinguishing and explosion suppression bottle diaphragms, such as unstable bursting area and possible film breakage at high temperature, which affect product quality and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a front view of the structure cross-section of the present invention;

[0016] Figure 2 It is a cross-sectional view of the diaphragm structure in the present invention.

[0017] In the figure: 1, upper part of the forming die; 2, lower part of the forming die; 3, main body of the diaphragm. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] like Figure 1 and Figure 2 As shown, a positive arch diaphragm design of an embodiment of the present invention includes an upper molding die 1, a lower molding die 2 and a diaphragm body 3, wherein the lower molding die 2 is arranged at the bottom end of the upper molding die 1, and the diaphragm body 3 is arranged between the upper molding die 1 and the lower molding die 2.

[0020] The middle working area of ​​the diaphragm body 3 is in a positive arch shape, the outer circle bevel of the diaphragm body 3 is 45 degrees, and the contact part between the diaphragm body 3 and the external parts is in an arc shape.

[0021] A process for designing a positive arch diaphragm, the process comprising the following steps:

[0022] S1, annealing process, keep the 0.5mm thick hard pure copper sheet at 500℃ for 10min-15min;

[0023] S2, forming process, place the copper disc on the Figure 1 The upper molding die 1 and the lower molding die 2 of the mold shown in the figure are pressed tightly with screws, and the lower molding die 2 is connected to the water pressure equipment. Figure 1 Apply 8MPa water pressure in the direction indicated by the middle arrow and maintain the pressure for 10min;

[0024] S3, tempering process, the formed diaphragm is tempered, the temperature is controlled at 200℃-250℃, and the temperature is kept for 2h-3h.

[0025] By designing the diaphragm in a positive arch shape and the contact surface in an arc shape, through processes such as annealing, pressure forming, and tempering, the diaphragm has achieved advantages such as stable bursting pressure, large bursting area, and high safety at high and low temperatures. It provides better guarantee for the fire extinguishing and explosion suppression performance.

[0026] The above has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A positive arch diaphragm design, comprising an upper forming die (1), a lower forming die (2) and a diaphragm body (3), characterized in that: A lower molding die (2) is arranged at the bottom end of the upper molding die (1), and a diaphragm body (3) is arranged between the upper molding die (1) and the lower molding die (2).

2. A positive dome diaphragm design according to claim 1, characterized in that: The middle working area of ​​the diaphragm body (3) is in a positive arch shape, the outer ring bevel of the diaphragm body (3) is 45 degrees, and the contact part of the diaphragm body (3) with the external parts is in an arc shape.

3. A process for designing a positive arch diaphragm, characterized in that: It is used to prepare the positive arch diaphragm design according to any one of claims 1-2, and the process comprises the following steps: S1, annealing process, keep the 0.5mm thick hard pure copper sheet at 500℃ for 10min-15min; S2, molding process, place the copper disc between the upper and lower molds of the mold, press it with screws, connect the water pressure equipment under the molding mold (2), apply 8MPa water pressure, and maintain the pressure for 10 minutes; S3, tempering process, the formed diaphragm is tempered, the temperature is controlled at 200℃-250℃, and the temperature is kept for 2h-3h.

Images