CN210372185U - Fragment-free flat plate slotted rupture disk for rapid overpressure system - Google Patents
Fragment-free flat plate slotted rupture disk for rapid overpressure system Download PDFInfo
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- CN210372185U CN210372185U CN201921275602.2U CN201921275602U CN210372185U CN 210372185 U CN210372185 U CN 210372185U CN 201921275602 U CN201921275602 U CN 201921275602U CN 210372185 U CN210372185 U CN 210372185U
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Abstract
The utility model provides a fragment-free flat slotted rupture disk for a rapid overpressure system, which comprises a flat slotted rupture disk, a polytetrafluoroethylene sealing film and a rupture disk bracket; the polytetrafluoroethylene sealing film is fixed between the flat slotted rupture disk and the rupture disk bracket and is respectively in close contact with the flat slotted rupture disk and the rupture disk bracket; the surfaces of the flat slotted rupture disk and the rupture disk bracket are respectively provided with six through seams along the radial direction, and one end of each through seam, which is close to the center of the flat slotted rupture disk or the rupture disk bracket, is intersected with one stop hole; the through seams and the stop holes on the rupture disk bracket are staggered with the through seams and the stop holes on the flat slotted rupture disk; and a plurality of pressure through holes are arranged in the area between the through seams on the rupture disk bracket. The problem that the traditional composite flat plate slotted rupture disk is not suitable for being used in rapid overpressure occasions is solved.
Description
Technical Field
The utility model relates to a safe superpressure is released technical field, particularly, especially relates to a rapid superpressure system is with dull and stereotyped type rupture disk that cracks of no piece.
Background
The traditional flat slotted rupture disk also comprises a three-layer structure, wherein the upper layer and the lower layer are both flat slotted structures, the blasting pressure is controlled by a weakening structure between the upper holes and the slots of the flat plate, and the middle part is provided with a polytetrafluoroethylene sealing film for sealing. The hole seam weakening structure controls the blasting pressure, mainly 6 radial penetrating slits are uniformly distributed on the surface of a diaphragm and radiate from a central area to an edge, the slits are intersected with six small holes in the central area, the small holes are called stop holes, the diameter is generally 2-4mm, the blasting pressure of the flat plate slotted blasting piece is controlled by the narrowest distance between the edges of the six holes, the six stop holes of the traditional flat plate slotted blasting piece are uniformly distributed, and the narrowest distance between the edges of the holes is also equal. During pressure-boosting blasting, the narrowest distance is under the action of tensile stress, and when the strength limit is reached, the narrowest distance between holes is simultaneously broken, so that the rupture disk is blasted.
Because the holes on the surface of the traditional flat plate slotted blasting piece are uniformly distributed and the narrowest distances are equal (the narrowest distances are commonly called bridge lengths), the plate is blasted when the pressure is rapidly increased, and the following problems exist:
1. the weak area surrounded by the six evenly distributed stop holes at the center of the rupture disk can be torn off to form metal fragments.
2. The hole seam on the bracket is very narrow, when the pressure rises rapidly, the pressure cannot act on the rupture disk quickly through the bracket, most of the pressure can act on the bracket firstly, so that the rupture pressure of the traditional flat plate slotted rupture disk is formed by superposing the bracket rupture pressure, the seal membrane rupture pressure and the upper layer rupture disk rupture pressure, the rupture pressure of the rupture disk is obviously higher than that of a slow boosting occasion, namely the traditional flat plate slotted rupture disk is applied to the rapid boosting occasion, the rupture pressure of the traditional flat plate slotted rupture disk can be increased by 30% -100% compared with the factory inspection rupture pressure, the boosting speed is related to, and the larger the boosting speed is, the larger the burst pressure is, and the larger the boosting speed is.
Therefore, the traditional composite flat plate slotted rupture disk is not suitable for being used in the occasion of rapid overpressure.
SUMMERY OF THE UTILITY MODEL
According to the technical problem that the traditional composite flat plate slotted rupture disk is not suitable for being used in the rapid overpressure occasions, the fragment-free flat plate slotted rupture disk for the rapid overpressure system is provided. The utility model discloses a rupture disk and bracket adopt uneven cloth hole, seam to weaken the structure, and the middle hole region also can accurate control burst pressure simultaneously when guaranteeing to step up fast appears the piece.
The utility model discloses a technical means as follows:
a fragment-free flat plate slotted rupture disk for a rapid overpressure system comprises a flat plate slotted rupture disk, a polytetrafluoroethylene sealing film and a rupture disk bracket; the polytetrafluoroethylene sealing film is fixed between the flat slotted rupture disk and the rupture disk bracket and is respectively in close contact with the flat slotted rupture disk and the rupture disk bracket; the surfaces of the flat slotted rupture disk and the rupture disk bracket are respectively provided with six through seams along the radial direction, and one end of each through seam, which is close to the center of the flat slotted rupture disk or the rupture disk bracket, is intersected with one stop hole; the through seams and the stop holes on the rupture disk bracket are staggered with the through seams and the stop holes on the flat slotted rupture disk; a plurality of pressure through holes are formed in the area between the through seams on the rupture disk bracket; the rupture pressure of the polytetrafluoroethylene sealing film is less than or equal to one half of the rupture pressure of the flat slotted rupture disk.
Furthermore, the through seams and the stop holes on the surfaces of the flat slotted rupture disk and the rupture disk bracket are non-uniformly distributed.
Furthermore, in six through seams on the surface of the flat slotted rupture disk, one of six included angles formed by two adjacent through seams is 90 degrees, and the rest included angles are 54 degrees; the shortest distance between two stop holes corresponding to two through seams with an included angle of 54 degrees is L1The shortest distance between two stop holes corresponding to two through seams with an included angle of 90 degrees is L2Five L corresponding to five 54 degree included angles1Equal to, and less than L2。
Further, the shortest distance between two adjacent stop holes on the rupture disk bracket is less than or equal to the shortest distance between two adjacent stop holes on the flat slotted rupture disk.
Furthermore, the edge of the polytetrafluoroethylene sealing film is fixed between the flat plate slotted rupture disk and the rupture disk bracket through spot welding or adhesive bonding.
Further, the hole diameter of the pressure through hole on the rupture disk bracket is 6mm-10 mm.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model provides a quick superpressure system uses no piece dull and stereotyped crack type rupture disk, can solve the traditional dull and stereotyped crack type rupture disk blasting and appear the metal fragment problem, can improve the dynamic responsiveness of traditional dull and stereotyped crack type rupture disk when boosting rapidly again greatly simultaneously, improve the security; in addition, for the bracket, the surface adopts a porous structure besides the structure with unevenly distributed holes and seams for controlling the explosion pressure of the bracket, a plurality of through holes with certain diameters are processed on the surface of the bracket according to the pressure relief area and the pressure boosting rate, so that the rapid overpressure pressure can rapidly penetrate through the holes and directly act on the upper explosion piece, the explosion piece is rapidly exploded, the sealing film and the lower bracket are driven to explode along with the explosion hole, and the relief port is opened.
To sum up, use the technical scheme of the utility model in, rupture disc and bracket adopt uneven cloth hole, seam to weaken the structure, middle orifice region disappearance piece also can accurate control burst pressure simultaneously when guaranteeing to step up fast. Therefore, the technical scheme of the utility model the problem that traditional compound dull and stereotyped rupture disk that cracks is unsuitable for quick superpressure occasion has been solved.
Based on the reason, the utility model discloses can extensively promote in fields such as explosion superpressure system rapidly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of a fragment-free flat slotted rupture disk for a rapid overpressure system.
Fig. 2 is a schematic structural view of the flat slotted rupture disk of the utility model.
Fig. 3 is a schematic structural view of the flat plate slotted rupture disk bracket of the present invention.
In the figure: 1. a flat slotted rupture disk; 2. a polytetrafluoroethylene sealing film; 3. a rupture disc carrier; 31. pressure passes through the aperture; 4. penetrating the seam; 5. stopping the hole; 6. the shortest distance between the two stop holes; 7. the conventional flat rupture disk fragment area.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
Example 1
As shown in fig. 1-3, the utility model provides a fragment-free flat slotted rupture disk for rapid overpressure system, comprising a flat slotted rupture disk 1, a teflon sealing film 2 and a rupture disk bracket 3; the polytetrafluoroethylene sealing film 2 is fixed between the flat slotted rupture disk 1 and the rupture disk bracket 3, and the polytetrafluoroethylene sealing film 2 is respectively in close contact with the flat slotted rupture disk 1 and the rupture disk bracket 3; under a normal state, the rupture disk bracket 3 is arranged on the lowest pressure bearing layer and is contacted with a medium, and the upper layer of the flat plate slotted rupture disk 1 is a pressure relief side;
six through slits 4 are respectively arranged on the surfaces of the flat slotted rupture disk 2 and the rupture disk bracket 4 along the radial direction, and one end of each through slit 4, which is close to the center of the flat slotted rupture disk 1 or the rupture disk bracket 3, is intersected with a stop hole 5; the through seams 4 and the stop holes 5 on the rupture disk bracket 3 are respectively staggered with the through seams 4 and the stop holes 5 on the flat plate slotted rupture disk 1, namely the positions are not overlapped; a plurality of pressure through holes 31 are arranged in the area between the through seams 4 on the rupture disk bracket 3; the rupture pressure of the polytetrafluoroethylene sealing film 2 is less than or equal to one half of the rupture pressure of the flat slotted rupture disk 1, and the rupture pressure of the flat slotted rupture disk 1 is controlled by the shortest distance 6 between two adjacent stop holes.
Preferably, the flat slotted rupture disk 1 and the rupture disk bracket 3 are both metal round thin plates, and the metal materials are various stainless steels, nickel-based alloys, aluminum and the like; when the burst pressure is lower, dull and stereotyped type rupture disk 1 that cracks reaches rupture disk bracket 3's thickness generally is no longer than 2.0mm, the utility model discloses the fragment is torn in the regional 7 formation of traditional dull and stereotyped rupture disk fragment when each can be avoided to the structure.
Further, the through seams 4 and the stop holes 5 on the surfaces of the flat plate slotted type rupture disk 1 and the rupture disk bracket 3 are non-uniformly distributed.
Furthermore, in six through seams 4 on the surface of the flat plate slotted rupture disk 1, one of six included angles formed by two adjacent through seams 4 is 90 degrees, and the rest included angles are 54 degrees; the shortest distance 6 between two stop holes corresponding to two through seams 4 with an included angle of 54 degrees is L1The shortest distance 6 between two stop holes corresponding to the two through seams 4 with the included angle of 90 degrees is L2Five L corresponding to five 54 degree included angles1Equal to, and less than L2(ii) a L corresponding to 90 degree included angle2The longest. Thus, the flat plate slotted type rupture disk 1 and the through seams 4 and the stop holes 5 on the surfaces of the rupture disk bracket 3 are controlled to be in non-uniform distribution, and one of the shortest distances 6 between the two stop holes is the longest, so that the rapid exceeding is ensuredDuring pressure blasting, the area (namely the fragment area 7 of the traditional flat plate rupture disk) surrounded by the six stop holes cannot be torn off, the rest five bridges are broken, and the rest one long bridge (the shortest distance 6 between the two stop holes) is connected with the periphery to ensure that the part does not fall off.
Further, the shortest distance 6 between two adjacent stop holes on the rupture disk bracket 3 is less than or equal to the shortest distance 6 between two adjacent stop holes on the flat plate slotted rupture disk 1.
Further, the edge of the polytetrafluoroethylene sealing film 2 is fixed between the flat slotted rupture disk 1 and the rupture disk bracket 3 through spot welding or adhesive bonding.
Further, the hole diameter of the pressure passing holes 31 on the rupture disk carrier 3 is 6mm-10mm, and the number of the pressure passing holes 31 is related to the burst pressure, the rupture disk relief area and the pressure rise rate, and can be determined by fluid mechanics.
Under normal state, pressure acts on the polytetrafluoroethylene sealing film through six penetrating seams and stop holes, the thickness of the polytetrafluoroethylene sealing film is generally 0.05-0.15mm, the strength is low, the film is soft and easy to deform, the pressure can be completely transmitted to the upper layer rupture disk, when the pressure reaches the tensile limit of the distance (bridge length) between the stop holes at the center of the upper layer rupture disk, the bridge is broken, six sections of the upper layer rupture disk are broken, and a release opening is opened. For slow pressure rise, the pressure can slowly pass through the through seam of the bracket and act on the polytetrafluoroethylene sealing film. Because the rupture disk, the polytetrafluoroethylene sealing film and the bracket are in close contact, the upper layer rupture disk is gradually deformed and arched under the action of pressure, a small cavity is formed between the upper layer rupture disk and the bracket, the cavity is small, when the pressure is slowly increased, the area of a gap between the through seams is enough to ensure that the pressure in the cavity is the same as the pressure in equipment, and the relationship between the burst pressure and the pressure increasing rate cannot be seen. When the pressure in the system is rapidly increased, the area of the gap between the original through seams on the bracket is small, the pressure cannot rapidly pass through the through seams and act on the blasting sheet, the pressure can directly act on the bracket, the pressure of the flat plate slotted blasting sheet is determined by the total blasting pressure of the three-layer structure, and the blasting pressure can be obviously increased. The utility model discloses according to set up the pressure clearing hole that the several diameter is 6-10mm on the bracket, pressure clearing hole quantity is by rupture disk release area, blast pressure and medium speed decision that steps up to pressure energy is used on the upper blasting piece fast when guaranteeing to step up rapidly, guarantees that the upper strata cracks the rupture disk and explodes fast, thereby arouses seal membrane and bracket blasting in the twinkling of an eye.
The traditional structure for controlling the blasting pressure of the flat plate slotted blasting sheet is a structure with uniformly distributed holes and weakened seams on the surface of a metal flat plate, the structure of a lower-layer bracket is similar to that of an upper-layer blasting sheet, and the structure with uniformly distributed holes and seams is also formed to weaken the structure so as to control the blasting pressure of the bracket to be not more than that of the upper-layer blasting sheet; when the structure is used for rapid pressure-rising blasting, fragments are easy to appear in the hole areas between the bracket and the blasting sheet. In addition, the traditional flat slotted bracket has narrow upper stop holes and narrow slots, is used on a rapid overpressure system, particularly a dust system, and the narrow slots are easily blocked by dust, so that pressure cannot rapidly pass through the narrow slots on the bracket and act on a rupture disk, and when rapid overpressure is caused, the rupture pressure of the rupture disk is always the sum of three layers, namely the bracket rupture pressure, the seal membrane rupture pressure and the upper slotted rupture disk rupture pressure, therefore, when the traditional flat slotted rupture disk is used in a rapid pressure rise field, the pressure relief action is obviously delayed, and the rapid overpressure rupture pressure of the rupture disk is almost 2 times of the slow pressure rise rupture pressure.
The utility model discloses a rupture disk and bracket adopt uneven cloth hole, seam to weaken the structure, and the middle hole region also can accurate control burst pressure simultaneously when guaranteeing to step up fast appears the piece. In addition, for the bracket, the surface adopts a porous structure besides the structure with unevenly distributed holes and seams for controlling the explosion pressure of the bracket, a plurality of pressure through holes with certain diameters are processed on the surface of the bracket according to the pressure relief area and the pressure boosting rate, so that the rapid overpressure pressure can rapidly penetrate through the holes and directly act on the upper explosion piece, the explosion piece is rapidly exploded, the sealing film and the lower bracket are driven to explode along with the explosion hole, and the relief port is opened.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (6)
1. A fragment-free flat plate slotted rupture disk for a rapid overpressure system is characterized by comprising a flat plate slotted rupture disk, a polytetrafluoroethylene sealing film and a rupture disk bracket; the polytetrafluoroethylene sealing film is fixed between the flat slotted rupture disk and the rupture disk bracket and is respectively in close contact with the flat slotted rupture disk and the rupture disk bracket;
the surfaces of the flat slotted rupture disk and the rupture disk bracket are respectively provided with six through seams along the radial direction, and one end of each through seam, which is close to the center of the flat slotted rupture disk or the rupture disk bracket, is intersected with one stop hole;
the through seams and the stop holes on the rupture disk bracket are staggered with the through seams and the stop holes on the flat slotted rupture disk;
a plurality of pressure through holes are formed in the area between the through seams on the rupture disk bracket;
the rupture pressure of the polytetrafluoroethylene sealing film is less than or equal to one half of the rupture pressure of the flat slotted rupture disk.
2. The rapid overpressure system debris-free flat plate slotted rupture disc of claim 1, wherein the through-slots and the stop holes of the flat plate slotted rupture disc and the rupture disc carrier surface are non-uniformly distributed.
3. The rapid overpressure system chip-free flat slotted rupture disk of claim 1 or 2, wherein six of the through slots on the surface of the flat slotted rupture disk are formed by two adjacent through slots, one of the six through slots is 90 ° and the others are 54 °; with an included angle of 54 degThe shortest distance between two stop holes corresponding to the two through seams is L1The shortest distance between two stop holes corresponding to two through seams with an included angle of 90 degrees is L2Five L corresponding to five 54 degree included angles1Equal to, and less than L2。
4. The rapid overpressure system maskless flat slotted rupture disc of claim 1 wherein the shortest distance between two adjacent stop holes on said rupture disc carrier is less than or equal to the shortest distance between two adjacent stop holes on said flat slotted rupture disc.
5. The rapid overpressure system chip-free flat plate slotted rupture disc of claim 1, wherein the edge of the teflon sealing membrane is fixed between the flat plate slotted rupture disc and the rupture disc carrier by spot welding or by adhesive bonding through a sticker.
6. The rapid overpressure system of claim 1 with debris-free flat slotted rupture discs, wherein the pressure through hole in the rupture disc carrier has an aperture of 6mm-10 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921275602.2U CN210372185U (en) | 2019-08-08 | 2019-08-08 | Fragment-free flat plate slotted rupture disk for rapid overpressure system |
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| CN201921275602.2U CN210372185U (en) | 2019-08-08 | 2019-08-08 | Fragment-free flat plate slotted rupture disk for rapid overpressure system |
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| CN210372185U true CN210372185U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066608A (en) * | 2022-03-09 | 2023-05-05 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
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2019
- 2019-08-08 CN CN201921275602.2U patent/CN210372185U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066608A (en) * | 2022-03-09 | 2023-05-05 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
| CN116066608B (en) * | 2022-03-09 | 2023-11-24 | 江苏拓米洛高端装备股份有限公司 | Pressure balance structure and environment test box |
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