CN216045658U

CN216045658U - Rupture disk clamping device with low discharge resistance

Info

Publication number: CN216045658U
Application number: CN202122246036.6U
Authority: CN
Inventors: 朱新如; 袁泉; 傅海燕
Original assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Current assignee: Bip Palo Luo Jiangsu Engineering Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-03-15
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a rupture disk clamping device with low discharge resistance, which comprises a clamping mechanism, wherein the lower part of the clamping mechanism is provided with a welding flange. According to the utility model, the protective cover is adopted to protect the rupture disk clamped by the clamping mechanism, and the waist-shaped holes staggered on the side wall of the protective cover are utilized, so that the discharge resistance of the rupture disk can be effectively reduced during pressure relief, the relief quantity can be ensured, the safe use of the pressure container provided with the rupture disk is ensured, the life safety of an operator is further ensured, and meanwhile, the rupture disk is effectively prevented from being polluted by dust and the like in the air entering the clamping cavity through the protective cover.

Description

Rupture disk clamping device with low discharge resistance

Technical Field

The utility model belongs to the technical field of safe discharge, and particularly relates to a rupture disk clamping device with low discharge resistance.

Background

The safe relief is the safe release of pressure when overpressure is generated in the pressure container, the pipeline and the like, and can effectively relieve the internal pressure of the pressure container, the pipeline and the like, so that the pressure container, the pipeline and the like are protected, and the life safety of personnel is further guaranteed. The rupture disk is a common choice for safe venting, and the rupture disk is clamped at a pressure relief opening of a pressure vessel, a pipeline and the like through a clamping device.

The clamping device of the rupture disk at the present stage is generally clamped by the clamp holder, the clamped rupture disk has large resistance during pressure relief, the pressure relief is difficult, the relief volume cannot be guaranteed, the safety of a pressure container, a pipeline and the like is also difficult to guarantee, and the life safety of personnel is endangered. For example, chinese patent No. CN214093192U, published 2021, 08 and 31, discloses a high-pressure rupture disk clamping device, in which "the lower end surface of the upper valve body is provided with an accommodating cavity, and the upper end surface of the upper valve body is provided with a first air passage communicated with the accommodating cavity; the end face of the lower valve body is provided with a second air passage penetrating through the lower end face of the lower valve body, the upper end face of the lower valve body extends into the accommodating cavity, and the outer wall of the lower valve body is in threaded connection with the inner side wall of the accommodating cavity; the upper end face and the lower end face of the upper holder are communicated, the upper end face and the lower end face of the lower holder are communicated, the lower end face of the lower holder is arranged on the upper end face of the lower valve body, the lower end face of the upper holder is arranged on the upper end face of the lower holder, the upper end face of the upper holder abuts against the upper wall of the accommodating cavity, and a rupture disk is clamped between the lower end face of the upper holder and the upper end face of the lower holder; set up the detection air flue that link up its outer wall on the inside wall that holds the chamber ", although this prior art has solved the sealed problem of rupture disk, but this prior art's rupture disk resistance is great when the pressure release, and the pressure release difficulty can't guarantee the volume of releasing, just also hardly guarantees the safe handling of valve body, threatens operating personnel's life safety then. For this reason, a new technical solution is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rupture disk clamping device with low discharge resistance, and aims to solve the problems that the conventional rupture disk clamping device in the background art has large pressure release resistance and cannot ensure the pressure release amount.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a rupture disk clamping device with low discharge resistance, includes fixture, fixture's lower part is provided with welded flange, its characterized in that, fixture's upper portion is provided with the centre gripping chamber that is used for holding the rupture disk, the middle part in centre gripping chamber is provided with the protection casing that is used for preventing to pollute the rupture disk, be provided with the waist type hole that a plurality of is used for reducing the discharge resistance on the lateral wall of protection casing, the lateral part in centre gripping chamber passes through the bolt and sets up with welded flange relatively.

Furthermore, a plurality of waist type hole staggers the setting, makes the rupture disk can reduce the discharge resistance effectively when the pressure release, guarantees the volume of releasing, also can prevent simultaneously that the dust in the air from getting into the centre gripping intracavity and polluting the rupture disk.

Further, the top of protection casing is provided with the roof of being convenient for inspect the rupture disk, the roof passes through fixing bolt and protection casing fixed connection, and convenient to detach roof inspects the surface of rupture disk.

Further, the bottom inboard of welding flange is provided with the protection network orifice plate that is used for preventing rupture disk piece to fall into the container, the lateral part in centre gripping chamber is provided with the centre gripping flange with welding flange matched with, the inboard of centre gripping flange is provided with the fixed gusset that is connected with the protection casing, be provided with the bolt hole that a plurality of is used for the bolt to run through on the centre gripping flange, the top of centre gripping flange is provided with the nut with bolt matched with, the bolt runs through centre gripping flange and welding flange fixed connection, makes the centre gripping flange under the cooperation of bolt and nut and with welding flange fixed connection.

Further, protection network orifice plate top is provided with the rupture disk, the flank centre gripping of rupture disk sets up between welding flange and centre gripping flange, makes the rupture disk flank can play tensile effect under the centre gripping of welding flange and centre gripping flange, the convex part setting of rupture disk makes the rupture disk can reduce the discharge resistance under tensile pressure release in the inside of protecting shield, guarantees the volume of releasing, realizes safe pressure release.

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

1. according to the utility model, the protective cover is adopted to protect the rupture disk clamped by the clamping mechanism, and the waist-shaped holes staggered on the side wall of the protective cover are utilized, so that the discharge resistance of the rupture disk can be effectively reduced during pressure relief, the relief quantity can be ensured, the safe use of the pressure container provided with the rupture disk is ensured, the life safety of an operator is further ensured, and meanwhile, the rupture disk is effectively prevented from being polluted by dust and the like in the air entering the clamping cavity through the protective cover.

2. According to the utility model, the top plate is arranged on the top of the protective cover through the fixing bolt, so that the top plate can be conveniently arranged or disassembled under the fixing or disassembling of the fixing bolt, the outer surface of the rupture disk can be effectively checked under the disassembling of the top plate, the rupture disk can be effectively decompressed, and the use safety of the pressure container is ensured.

3. According to the utility model, the welding flange and the clamping flange clamp and extrude the side wing of the rupture disk, so that the side wing of the rupture disk can be stretched during pressure relief, and the stability of pressure relief is ensured.

4. According to the utility model, the protective mesh plate is arranged on the inner side of the bottom of the welding flange, so that the rupture disk can be prevented from falling into the pressure container under the obstruction of the protective mesh plate when the rupture disk is decompressed and crushed, the storage medium in the pressure container is prevented from being polluted, and the storage quality of the pressure container is improved.

Drawings

FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a clamping chamber structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the protective cover structure of the present invention;

FIG. 4 is a schematic sectional view of a welding flange and a protective mesh plate structure according to the present invention;

fig. 5 is a schematic structural view of the overall installation state of the present invention.

Wherein: 1. a rupture disk; 2. welding a flange; 3. a clamping cavity; 4. a protective cover; 5. a kidney-shaped hole; 6. a bolt; 7. clamping the flange; 8. fixing a rib plate; 9. fixing the bolt; 10. bolt holes; 11. a nut; 12. a protective mesh plate; 13. moving the pressure vessel; 14. a top plate.

Detailed Description

The technical solution 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.

As shown in figure 1, a rupture disk clamping device with low discharge resistance, including welding flange 2 and the centre gripping chamber 3 that is used for holding rupture disk 1, the middle part in centre gripping chamber 3 is provided with the protection casing 4 that is used for preventing to pollute rupture disk 1, is provided with the kidney type hole 5 that a plurality of is used for reducing the discharge resistance on the lateral wall of protection casing 4, and the lateral part in centre gripping chamber 3 passes through bolt 6 and sets up with welding flange 2 relatively.

As shown in fig. 2-3, a clamping flange 7 matched with the welding flange 2 is arranged on the side portion of the clamping cavity 3, a fixing rib plate 8 connected with the protective cover 4 is arranged on the inner side of the clamping flange 7, a plurality of waist-shaped holes 5 with different sizes and lengths are arranged on the side wall of the protective cover 4, the waist-shaped holes 5 with different sizes and lengths are staggered, so that the discharge resistance of the rupture disk 1 can be effectively reduced during pressure relief, the relief amount is ensured, meanwhile, dust in air can be prevented from entering the clamping cavity 3 to pollute the rupture disk 1, a top plate 14 convenient for inspecting the rupture disk 1 is arranged on the top of the protective cover 4, the top plate 14 is fixedly connected with the protective cover 4 through a fixing bolt 9, the top plate 14 is convenient to detach, and the outer surface of the rupture disk 1 is detected.

As shown in fig. 1-4, a plurality of bolt holes 10 through which bolts 6 pass are provided on a clamping flange 7, nuts 11 matched with the bolts 6 are provided at the top of the clamping flange 7, the bolts 6 pass through the clamping flange 7 and are fixedly connected with a welding flange 2, a protective mesh plate 12 for preventing fragments of a rupture disk 1 from falling into a pressure vessel is provided at the inner side of the bottom of the welding flange 2, a rupture disk 1 is provided above the protective mesh plate 12, a flank of the rupture disk 1 is clamped between the welding flange 2 and the clamping flange 7, so that the flank of the rupture disk 1 can play a role of stretching under the clamping of the welding flange 2 and the clamping flange 7, and a convex part of the rupture disk 1 is provided inside the protective cover 4, so that the rupture disk 1 can reduce the discharge resistance under the stretching, ensure the release amount, and realize the safe pressure release.

When the rupture disk 1 is installed, as shown in fig. 1-5, firstly installing a protective mesh plate 12 on the inner side of the bottom of a welding flange 2, then welding and fixing the welding flange 2 provided with the protective mesh plate 12 on a movable pressure container 13, and then positioning the flanks of the rupture disk 1 on the two sides of the top of the welding flange 2, namely completing the positioning of the rupture disk 1; then, the inner side of the clamping flange 7 is fixed with the upper protective cover 4 through the fixing rib plate 8, the clamping flange 7 provided with the protective cover 4 is aligned to the welding flange 2, the flank of the rupture disk 1 is tightly clamped between the clamping flange 7 and the welding flange 2 through the bolt 6 and the nut 11, the mounting of the rupture disk 1 is completed, and the convex part of the rupture disk 1 is arranged in the protective cover 4.

The working principle and the using process of the utility model are as follows: as shown in fig. 1 and 5, when the pressure inside the movable pressure container 13 is overpressure, the rupture disk 1 immediately releases the pressure inside the movable pressure container 13 at this time, so as to ensure the pressure balance of the movable pressure container 13, that is, the side wing of the rupture disk 1 is stretched by the pressure, and the convex part of the rupture disk 1 is jacked up along with the pressure, and the waist-shaped holes 5 arranged in a staggered manner with different sizes on the side wall of the protective cover 4 disperse the pressure released by the rupture disk 1, so as to reduce the resistance of the released pressure, thereby ensuring the release amount of the pressure of the movable pressure container 13, ensuring the safe use of the movable pressure container 13, further ensuring the life safety of personnel, and simultaneously effectively avoiding dust in the air from entering the clamping cavity 3 to pollute the rupture disk 1 through the protective cover 4.

When the internal pressure of the movable pressure container 13 reaches balance, the top plate 14 can be detached by the operator through the fixing bolt 9, the outer surface of the rupture disk 1 is checked, if the outer surface of the rupture disk 1 is qualified, the top plate 14 is fixed to the top of the protective cover 4 through the fixing bolt 9 again, if the outer surface of the rupture disk 1 is unqualified, the clamping flange 7 is detached through the bolt 6 and the nut 11, the rupture disk 1 is replaced, and the movable pressure container 13 is guaranteed to be capable of effectively relieving pressure.

Claims

1. The utility model provides a rupture disk clamping device with low discharge resistance, includes fixture, fixture's lower part is provided with welded flange, its characterized in that, fixture's upper portion is provided with the centre gripping chamber that is used for holding the rupture disk, the middle part in centre gripping chamber is provided with the protection casing that is used for preventing to pollute the rupture disk, be provided with the waist type hole that a plurality of is used for reducing the discharge resistance on the lateral wall of protection casing, the lateral part in centre gripping chamber passes through the bolt and sets up with welded flange relatively.

2. The rupture disk clamping device with low exhaust resistance as set forth in claim 1, wherein a plurality of said kidney holes are staggered.

3. The rupture disk clamping device with low exhaust resistance as set forth in claim 1, wherein the top of the protection cover is provided with a top plate for facilitating inspection of the rupture disk, and the top plate is fixedly connected with the protection cover by means of fixing bolts.

4. The rupture disc clamping device with low discharge resistance according to claim 1, wherein the side part of the clamping cavity is provided with a clamping flange matched with the welding flange, and the inner side of the clamping flange is provided with a fixing rib plate connected with the protective cover.

5. The rupture disk clamping device with low discharge resistance as set forth in claim 4, wherein a plurality of bolt holes for bolts to pass through are formed on the clamping flange, and nuts matched with the bolts are arranged on the top of the clamping flange.

6. The rupture disk clamping device with low discharge resistance as set forth in claim 1 or 5, wherein the bolts penetrate through the clamping flange and are fixedly connected with the welding flange.

7. The rupture disk clamping device with low discharge resistance as set forth in claim 1, wherein a protective mesh plate for preventing rupture disk fragments from falling into the container is provided inside the bottom of the welding flange.

8. The rupture disk clamping device with low exhaust resistance as set forth in claim 7, wherein a rupture disk is arranged above the protective mesh plate, the flank of the rupture disk is clamped between the welding flange and the clamping flange, and the convex part of the rupture disk is arranged inside the protective cover.