Split type magnetic alarm device for rupture disk

Abstract

The utility model discloses a split type magnetic alarm device for a rupture disk, which relates to the technical field of safety pressure relief devices and comprises an upper gasket, a slotted plate, a lower gasket, an upper clamp holder, the rupture disk, a lower clamp holder, a magnetic sensor and a magnetic block. The upper gasket, the slotted plate, the lower gasket and the magnetic block are assembled into a whole, the magnetic block is connected with the slotted plate, the magnetic sensor is installed on the upper clamping device and is coaxial with the magnetic block after being installed, and the working mode can be entered after the distance is set. When the rupture disk is exploded, the slotting plate drives the magnetic block to move, the magnetic sensor receives a feedback signal and transmits the feedback signal to a control room, and an alarm is given to prompt the rupture disk to act; according to the utility model, the traditional structure that the magnetic block and the rupture disk are assembled together is changed, so that the rupture disk is less influenced by interference and wider in application range, the rupture disk can be installed without being damaged and being influenced by the size of the rupture disk, the modular design is realized, and the field replacement is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of safety relief devices, in particular to a split magnetic alarm device for a rupture disk. Background Technique

[0002] The rupture disk is one of the important safety accessories of a pressure vessel. When the pressure vessel is over-pressurized, the rupture disk can quickly burst and release the internal pressure, preventing the pressure from continuing to rise and avoiding the explosion of the pressure vessel. After the rupture disk bursts, the control room needs to detect it in time, close the valve to avoid the loss and waste of materials, and at the same time replace the rupture disk spare parts to reduce the losses caused by equipment shutdown. This requires the installation of a remote transmission alarm device on the rupture disk, such as a wire break alarm, a remote transmission pressure gauge, a pressure sensor, a pressure transmitter and other remote transmission alarm devices installed on the rupture disk. Different remote transmission alarm devices can correspond to different rupture disk models and different operating conditions, and the magnetic alarm device is one of them.

[0003] For traditional magnetic alarm devices, the magnetic block is assembled with the rupture disk, and the magnetic block is resistance welded to the arch surface of the rupture disk or assembled and welded with the edge of the rupture disk, which is very likely to damage the arch surface of the rupture disk and cause the rupture disk to fail. In addition, for some special rupture disk types, such as the reverse arch with knife rupture disk, the pressure is extremely low, and conventional remote transmission alarm devices cannot timely feedback the signal of the rupture of the rupture disk. Therefore, it is necessary to use a magnetic alarm to feedback the state of the rupture disk by detecting the action of the rupture disk. However, the reverse arch with knife rupture disk is provided with a rupture blade on the upper clamp, resulting in the inability to install a magnetic block alarm. Content of the Utility Model

[0004] The purpose of the utility model is to provide a split magnetic alarm device for a rupture disk to solve the problems in the above background technique that the traditional magnetic alarm device is easy to cause the rupture disk to fail when the magnetic block is assembled with the rupture disk, and that some special rupture disk types cannot install a magnetic block alarm.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a split magnetic alarm device for a rupture disk, including a slotted plate, and upper and lower gaskets of the same specification are respectively arranged on the upper and lower sides of the slotted plate. A support plate and a fixing plate are arranged on the bottom surface of the slotted plate inside the lower gasket, and a magnetic block is arranged on the fixing plate; a upper clamp and a lower clamp are arranged vertically and oppositely below the lower gasket, and a rupture disk is clamped and fixed between the two clamps; a threaded through hole is arranged along the radial direction on the side wall of the upper clamp, and a magneto-sensor which is thread-fixed and coaxial with the magnetic block is arranged through the threaded through hole.

[0006] Preferably, both the upper gasket and the lower gasket are fixedly connected to the slotted plate by gluing.

[0007] Preferably, the slotted plate is arranged in a disc shape and has an incomplete circular through-slit coaxially arranged thereon, and through-slit through-holes are left at both ends of the through-slit; the diameter of the through-slit is smaller than the inner diameters of the upper gasket and the lower gasket.

[0008] Preferably, the diameter dimension of the through-slit through-hole is not more than 10 mm.

[0009] Preferably, the through-slit is not completely cut through, and the non-cut-through angle is not more than 60°.

[0010] Preferably, one or more supporting plates can be provided and are resistance-welded between the lower gasket and the through-slit.

[0011] Preferably, after the sensing end of the magnetic force sensor is installed, it should protrude 5-10 mm from the inner edge of the upper gripper.

[0012] Preferably, the fixing plate is resistance-welded to the inner side of the through-slit, and a fixing plate folding plate bent vertically downward is provided at one end close to the magnetic force sensor, and a magnetic block is provided on the side of the fixing plate folding plate away from the magnetic force sensor.

[0013] Preferably, the distance between the magnetic block and the sensing end of the magnetic force sensor is not more than 10 mm.

[0014] Preferably, one end of the slotted plate is provided with a positioning plate that is on the same diameter as the fixing plate and is bent vertically downward, and a semi-circular positioning groove that is concave upward and matches the magnetic force sensor is provided at the bottom end of the positioning plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The magnetic block does not need to be assembled together with the bursting disc, and is separately manufactured and packaged, avoiding damage to the bursting disc or the magnetic block during assembly and transportation;

[0017] 2. Components such as the upper and lower gaskets, the slotted plate, the magnetic block, and the fixing plate can be assembled into a whole, can be ordered or stocked separately, are simple to install, and are modularly replaced and installed;

[0018] 3. For special types of bursting discs, such as reverse-acting knife-type bursting discs, the present utility model is applicable, solving the problem of no remote transmission alarm signal for this type of ultra-low pressure bursting disc;

[0019] 4. The signal stability is higher. In the traditional structure, the magnetic block is assembled on the bursting disc. When there is pressure fluctuation in the equipment, the bursting disc and the magnetic block will also have small deformations, and false alarms often occur. With this structure, the magnetic block and the bursting disc are not a whole and are far from the bursting disc, and the deformation of the bursting disc will not affect the remote transmission alarm signal;

[0020] 5. If the magnetic block is damaged during transportation or use, the magnetic block module can be ordered separately without having to order the rupture disc product again, which is more economical.

[0021] 6. The utility model effectively solves the problem that the remote alarm signal cannot be installed for some special models of the rupture disc device, and at the same time has the advantages of higher damage resistance, stability, modularity, easy installation, cost saving, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of the utility model;

[0023] Figure 2 is a schematic diagram of an integral body of the upper gasket, the slotted plate, the lower gasket, the fixing plate, the magnetic block, and the support plate;

[0024] Figure 3 is a top view of the slotted plate;

[0025] Figure 4 is Figure 2 a left view;

[0026] In the figure: upper gasket - 1, slotted plate - 2, through slot - 21, through slot through hole - 22, positioning plate - 23, semi-circular positioning groove - 24, lower gasket - 3, upper clamp - 4, threaded through hole - 41, rupture disc - 5, lower clamp - 6, magnetic sensor - 7, fixing plate - 8, fixing plate folding plate - 81, magnetic block - 9, support plate - 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Please refer to Figures 1-4 , Figure 1 is a schematic structural diagram of the utility model; Figure 2 is a schematic diagram of an integral body of the upper gasket, the slotted plate, the lower gasket, the fixing plate, the magnetic block, and the support plate; Figure 3 is a top view of the slotted plate; Figure 4 is Figure 2 a left view.

[0029] The utility model provides a split magnetic alarm device for a rupture disk, which comprises a horizontally arranged slotted plate 2, and upper and lower gaskets 1 and 3 with the same specifications are respectively arranged on the upper and lower sides of the slotted plate 2. A support plate 10 and a fixing plate 8 are arranged on the bottom surface of the slotted plate 2 inside the lower gasket 3, and a magnetic block 9 is arranged on the fixing plate 8; A upper clamp 4 and a lower clamp 6 which are arranged vertically opposite to each other are arranged below the lower gasket 3, and a rupture disk 5 is clamped and fixed between the two clamps; A threaded through hole 41 is arranged along the radial direction on the side wall of the upper clamp 4, and a magneto - sensor 7 fixed by threads is arranged through it.

[0030] Both the upper gasket 1 and the lower gasket 3 are fixedly connected with the slotted plate 2 into a whole by means of gluing.

[0031] The slotted plate 2 is arranged in a disc shape and an incomplete circular through - slot 21 is coaxially arranged on it. The through - slot 21 is not completely cut through, and the uncut angle is not more than 60°. Both ends of the through - slot 21 are provided with through - slot through - holes 22, and the diameter size of the through - slot through - holes 22 is not more than 10 mm; The diameter of the through - slot 21 is smaller than the inner diameters of the upper gasket 1 and the lower gasket 3.

[0032] The support plate 10 is resistance - welded to the bottom surface of the slotted plate 2 and is located between the lower gasket 3 and the through - slot 21, playing a role in supporting the slotted plate 2; One or more support plates 10 can be provided.

[0033] After the induction end of the magneto - sensor 7 is installed, it should protrude 5 - 10 mm from the inner edge of the upper clamp 4.

[0034] The fixing plate 8 is resistance - welded to the inner side of the through - slot 21 on the bottom surface of the slotted plate 2, and a fixing - plate folding plate 81 which is bent vertically downward is arranged at one end close to the magneto - sensor 7. A magnetic block 9 is arranged on the side of the fixing - plate folding plate 81 away from the magneto - sensor 7, and the magnetic block 9 and the magneto - sensor 7 are on the same straight line. The distance between the magnetic block 9 and the induction end of the magneto - sensor 7 is not more than 10 mm.

[0035] In addition, one end of the slotted plate 2 is provided with a positioning plate 23 which is on the same diameter as the fixing plate 8 and is bent vertically downward. The bottom end of the positioning plate 23 is provided with a semi - circular positioning groove 24 which is concave upward. The semi - circular positioning groove 24 is matched with the magneto - sensor 7; During installation, the magnetic block 9 and the magneto - sensor 7 can be positioned through the positioning plate 23 and the semi - circular positioning groove 24 to make them on the same axis.

[0036] The upper gasket 1, the slotted plate 2, the lower gasket 3, the fixing plate 8, the magnetic block 9, and the support plate 10 can be assembled into a whole and manufactured or used separately.

[0037] During use, after the rupture disc 5 acts, the slotted plate 2 turns upwards accordingly, driving the fixing plate 8 and the magnetic block 9 to move upwards; at this time, the magnetic force sensor receives a feedback signal and conducts it to the control room to alarm that the rupture disc has acted.

[0038] In the split-type magnetic alarm device for rupture discs provided by the present utility model, the magnetic block does not need to be assembled with the rupture disc, and is separately manufactured and packaged to avoid damaging the rupture disc or the magnetic block during assembly and transportation; components such as upper and lower gaskets, slotted plates, magnetic blocks, and fixing plates can be assembled into a whole, and can be ordered or stocked separately, with simple installation and modular replacement and installation; for special types of rupture discs, such as reverse-arch with knife rupture discs, the present utility model is applicable, solving the problem of no remote transmission alarm signal for this type of ultra-low pressure rupture disc; the signal stability is higher. In the traditional structure, the magnetic block is assembled on the rupture disc. When there is pressure fluctuation in the equipment, the rupture disc and the magnetic block will also have small deformations, and false alarms often occur. With this structure, the magnetic block and the rupture disc are not a whole and are far away from the rupture disc, and the deformation of the rupture disc will not affect the remote transmission alarm signal; if the magnetic block is damaged during transportation or use, the magnetic block module can be ordered separately without ordering the rupture disc product again, with higher economy; the present utility model effectively solves the problem that remote transmission alarm signals cannot be installed for some special models of rupture disc devices, and at the same time has the advantages of higher damage resistance, stability, modularity, easy installation, and cost savings.

[0039] Although the embodiments of the present utility model have been shown and described, obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, for those of ordinary skill in the art, it can be understood that without departing from the principle and spirit of the present utility model, all other embodiments obtained by making various changes, modifications, substitutions, and variations to these embodiments without creative work belong to the scope of protection of the present utility model.

Claims

1. A split magnetic alarm device for a rupture disc, characterized in that: It includes a slotted plate (2), and annular upper and lower gaskets (1) and (3) with the same specifications are respectively arranged on its upper and lower sides. A supporting plate (10) and a fixing plate (8) are arranged on the bottom surface of the slotted plate (2) inside the lower gasket (3), and a magnetic block (9) is arranged on the fixing plate (8); an upper clamp (4) and a lower clamp (6) are arranged vertically opposite below the lower gasket (3), and a bursting disc (5) is clamped and fixed between the two clamps; a threaded through hole (41) is arranged along the radial direction on the side wall of the upper clamp (4), and a magneto - sensor (7) which is thread - fixed and coaxial with the magnetic block (9) is arranged through it.

2. The split magnetic alarm device for bursting discs according to claim 1, wherein: Both the upper gasket (1) and the lower gasket (3) are fixedly connected to the slotted plate (2) as a whole by means of adhesion.

3. The split magnetic alarm device for bursting discs according to claim 2, characterized in that: The slotted plate (2) is arranged in a disc shape and an incomplete - circular through - slot (21) is coaxially arranged on it. Both ends of the through - slot (21) are provided with through - slot through - holes (22); the diameter of the through - slot (21) is smaller than the inner diameters of the upper gasket (1) and the lower gasket (3).

4. The split magnetic alarm device for bursting discs according to claim 3, wherein: The diameter size of the through - slot through - hole (22) is not greater than 10 mm.

5. The split magnetic alarm device for bursting discs according to claim 4, characterized in that: The through - slot (21) is not completely cut through, and the un - cut - through angle is not greater than 60°.

6. The split magnetic alarm device for rupture discs according to claim 5, characterized in that: One or more supporting plates (10) can be arranged and are resistance - welded between the lower gasket (3) and the through - slot (21).

7. The split magnetic alarm device for bursting discs according to claim 6, characterized in that: After the sensing end of the magneto - sensor (7) is installed, it should protrude 5 - 10 mm from the inner edge of the upper clamp (4).

8. The split magnetic alarm device for bursting discs according to claim 7, characterized in that: The fixing plate (8) is resistance - welded inside the through - slot (21), and a fixing - plate folding plate (81) which is vertically bent downward is arranged at one end close to the magneto - sensor (7). A magnetic block (9) is arranged on the side of the fixing - plate folding plate (81) away from the magneto - sensor (7).

9. The split magnetic alarm device for bursting discs according to claim 8, characterized in that: The distance between the magnetic block (9) and the sensing end of the magneto - sensor (7) is not greater than 10 mm.

10. The split magnetic alarm device for rupture disc according to any one of claims 1-9, characterized in that: One end of the slotted plate (2) is provided with a positioning plate (23) which is bent vertically downward on the same diameter as the fixing plate (8). The bottom end of the positioning plate (23) is provided with a semi - circular positioning groove (24) which is concave upward and matches the magneto - sensor (7).

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