Low temperature storage tank rupture disc valve structure with emergency release device

Abstract

The utility model relates to a pull -off valve technical field especially a low temperature storage tank pull -off valve structure with urgent separation device, its technical scheme: including valve body shell, valve body shell is provided with two, and the close -fitting ring is installed to the connection of one end of mutual approach, two valve body shell mutual approach one end outside respectively fixed with outer ring cover and inner ring board, the outer ring cover is opened in and is inserted into the groove, the inner ring board is located in the inserted groove, the installation groove is opened to the inner ring board outside, the pressure sensor is fixed in the installation groove, the inserted groove side wall and installation groove alignment position are installed the clamping block, the clamping block is inserted in the installation groove, and is opposite with pressure sensor, the utility model discloses can through the telescopic drive of the clamping block to electromagnetic adsorption after monitoring pressure exceeds the safe value, and then realizes the quick disconnecting of pull -off valve, not only can realize the repeated use of disconnecting structure, and the tensile monitoring is more accurate.

Description

Technical Field

[0001] This utility model relates to the field of breakaway valve technology, specifically to a breakaway valve structure for a cryogenic storage tank with an emergency release device. Background Technology

[0002] A breakaway valve, also known as an emergency disconnect device, is a safety device installed at the connection end of a hose or pipeline. When the pipeline or hose is subjected to a pulling force exceeding the set range, the breakaway valve will automatically disconnect, and the valves at both ends will automatically close to prevent media leakage and protect the safety of personnel, equipment, and the environment.

[0003] The disconnection mechanism of the breakaway valve is mainly achieved through a preset mechanical structure. Its core is to automatically disconnect and quickly close the valve when subjected to a tensile force exceeding the set range to prevent media leakage. The disconnection method is achieved by the breakage of the breakage pin or by the tension of the steel wire rope. Both of these methods rely on the hard breakage of the connecting parts, which cannot be used after breakage, resulting in increased operating costs. Furthermore, the maximum load-bearing capacity of the connecting parts, whether steel wire rope or breakage pin, cannot be precisely controlled. In actual use, if the strength is too high, the disconnection effect cannot be achieved well, while if the strength is too low, it will affect normal use. Utility Model Content

[0004] The purpose of this invention is to provide a breakaway valve structure for a cryogenic storage tank with an emergency disconnection device, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a valve body shell, of which two shells are provided, with a sealing ring installed at their adjacent connection points. An outer ring sleeve and an inner ring plate are respectively fixed to the outer sides of the two valve body shells at their adjacent ends. An insertion groove is provided inside the outer ring sleeve, and the inner ring plate is located within the insertion groove. An installation groove is provided on the outer side of the inner ring plate, and a pressure sensor is fixed within the installation groove. A locking block is installed on the side wall of the insertion groove, aligned with the installation groove. The locking block is inserted into the installation groove and abuts against the pressure sensor. An electromagnetic drive assembly for extending and retracting the locking block is provided inside the outer ring sleeve.

[0006] Preferably, the electromagnetic drive assembly includes an electromagnet and a telescopic groove. The telescopic groove is formed on the side wall of the insertion groove and aligned with the locking block. The electromagnet is fixed inside the telescopic groove, and a magnetic block is fixed at one end of the locking block inside the telescopic groove.

[0007] Preferably, a fixing plate is fixed inside the telescopic groove, and an ejector spring is fixed between the fixing plate and the locking block. The fixing plate has a ring structure, and the electromagnet passes through the fixing plate. The magnetic block is located inside the ejector spring.

[0008] Preferably, a synchronization controller is fixed to the outside of the outer ring.

[0009] Preferably, a ball bearing is installed on the inner side of the card block, and the ball bearing is in contact with the side wall of the mounting groove.

[0010] Preferably, a mounting bracket is fixed inside the valve body housing, a valve core is installed near one end opening of the valve body housing, a guide rod is fixed at the center of the mounting bracket, the end of the guide rod is inserted into the valve core and slidably connected to the valve core, and a sealing spring is fixed between the valve core and the mounting bracket.

[0011] Compared with the prior art, the beneficial effects of this utility model are: after the monitored pressure exceeds the safe value, the extension and retraction of the block can be driven by electromagnetic adsorption, thereby realizing the rapid disconnection of the pull-off valve. This not only enables the reuse of the disconnection structure, but also makes the tension monitoring more accurate. Attached Figure Description

[0012] Figure 1 This is a side sectional view of the structure of a cryogenic storage tank pull-off valve with an emergency release device according to the present invention. Figure 2 This utility model relates to a cryogenic storage tank pull-off valve with an emergency release device. Figure 1 A schematic diagram of the enlarged structure at point A in the middle; Figure 3 This is a schematic diagram of the outer ring structure of a pull-off valve for a cryogenic storage tank with an emergency release device according to this utility model. Figure 4 This is a schematic diagram of the inner side plate structure of a pull-off valve structure for a cryogenic storage tank with an emergency release device according to this utility model.

[0013] In the diagram: 1. Valve body shell; 11. Mounting bracket; 12. Valve core; 13. Guide rod; 14. Sealing spring; 2. Sealing ring; 3. Inner ring plate; 31. Mounting groove; 32. Pressure sensor; 4. Outer ring sleeve; 41. Insertion groove; 42. Locking block; 43. Telescopic groove; 44. Fixing plate; 45. Ejection spring; 46. Electromagnet; 47. Magnetic block; 48. Synchronization controller; 49. Ball bearing. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4This utility model provides a technical solution: it includes a valve body shell 1, two valve body shells 1 are provided, and a sealing ring 2 is installed at the connection of the two valve body shells near each other. An outer ring sleeve 4 and an inner ring plate 3 are respectively fixed on the outer side of the two valve body shells near each other. An insertion groove 41 is opened in the outer ring sleeve 4, the inner ring plate 3 is located in the insertion groove 41, and an installation groove 31 is opened on the outer side of the inner ring plate 3. A pressure sensor 32 is fixed in the installation groove 31. A locking block 42 is installed on the side wall of the insertion groove 41 and aligned with the installation groove 31. The locking block 42 is inserted into the installation groove 31 and abuts against the pressure sensor 32. An electromagnetic drive assembly for extending and retracting the locking block 42 is provided in the outer ring sleeve 4. A synchronous controller 48 is fixed on the outer side of the outer ring sleeve 4. A ball 49 is installed on the inner side of the locking block 42. The ball 49 is connected to the side wall of the installation groove 31.

[0016] The electromagnetic drive assembly includes an electromagnet 46 and a telescopic groove 43. The telescopic groove 43 is formed on the side wall of the insertion groove 41 and aligned with the locking block 42. The electromagnet 46 is fixed inside the telescopic groove 43. A magnetic block 47 is fixed at one end of the locking block 42 inside the telescopic groove 43. A fixing plate 44 is fixed inside the telescopic groove 43. An ejection spring 45 is fixed between the fixing plate 44 and the locking block 42. The fixing plate 44 has a ring structure, and the electromagnet 46 passes through the fixing plate 44. The magnetic block 47 is located inside the ejection spring 45.

[0017] A mounting bracket 11 is fixed inside the valve body shell 1. A valve core 12 is installed near the opening at one end of the valve body shell 1. A guide rod 13 is fixed at the center of the mounting bracket 11. The end of the guide rod 13 is inserted into the valve core 12 and is slidably connected to the valve core 12. A sealing spring 14 is fixed between the valve core 12 and the mounting bracket 11.

[0018] Working principle: First, connect the entire device to an external power source. When both ends of the valve are pulled, the valve body shell 1 will move away from each other. At this time, the end of the locking block 42 exerts a greater squeezing force on the pressure sensor 32. After reaching the preset value, the electromagnet 46 can be energized to attract the magnetic block 47. Then, based on the compression of the ejector spring 45, the locking block 42 is retracted into the telescopic groove 43. At this time, the two valve body shells 1 can be quickly disconnected. At the same time, the valve core 12 can be pushed by the sealing spring 14. The valve body shell 1 has a sealed end opening, ensuring that no structural components will break or be damaged during the entire process, thus enabling continuous use and reducing operating costs. Meanwhile, a ball bearing 49 is installed at the end where the locking block 42 fits into the mounting groove 31, which reduces the resistance when the locking block 42 is pulled out. This ensures that the locking block 42 can be quickly retracted into the telescopic groove 43 under the action of electromagnetic adsorption force. Furthermore, if the pulling force does not reach the preset safety value, the locking block 42 will always be inserted into the mounting groove 31, ensuring a stable connection between the two valve body shells 1.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A breakaway valve structure for a cryogenic storage tank with an emergency disconnection device, comprising a valve body shell (1), characterized in that: Two valve body shells (1) are provided, and a sealing ring (2) is installed at the connection of the two valve body shells (1) near each other. An outer ring sleeve (4) and an inner ring plate (3) are respectively fixed on the outer side of the two valve body shells (1) near each other. An insertion groove (41) is provided in the outer ring sleeve (4). The inner ring plate (3) is located in the insertion groove (41). An installation groove (31) is provided on the outer side of the inner ring plate (3). A pressure sensor (32) is fixed in the installation groove (31). A locking block (42) is installed on the side wall of the insertion groove (41) and aligned with the installation groove (31). The locking block (42) is inserted into the installation groove (31) and abuts against the pressure sensor (32). An electromagnetic drive assembly for extending and retracting the locking block (42) is provided in the outer ring sleeve (4).

2. The structure of a cryogenic storage tank pull-off valve with an emergency disconnection device according to claim 1, characterized in that: The electromagnetic drive assembly includes an electromagnet (46) and a telescopic groove (43). The telescopic groove (43) is opened on the side wall of the insertion groove (41) and aligned with the locking block (42). The electromagnet (46) is fixed in the telescopic groove (43). A magnetic block (47) is fixed at one end of the locking block (42) located in the telescopic groove (43).

3. The structure of a cryogenic storage tank pull-off valve with an emergency disconnection device according to claim 2, characterized in that: A fixing plate (44) is fixed inside the telescopic groove (43). A push-out spring (45) is fixed between the fixing plate (44) and the locking block (42). The fixing plate (44) has a ring structure, and the electromagnet (46) passes through the fixing plate (44). The magnetic block (47) is located inside the push-out spring (45).

4. The structure of a cryogenic storage tank pull-off valve with an emergency disconnection device according to claim 1, characterized in that: A synchronization controller (48) is fixed on the outside of the outer ring (4).

5. The structure of a cryogenic storage tank pull-off valve with an emergency disconnection device according to claim 1, characterized in that: A ball bearing (49) is installed inside the card block (42), and the ball bearing (49) is in contact with the side wall of the mounting groove (31).

6. The structure of a cryogenic storage tank pull-off valve with an emergency disconnection device according to claim 1, characterized in that: A mounting bracket (11) is fixed inside the valve body shell (1). A valve core (12) is installed near the opening at one end of the valve body shell (1). A guide rod (13) is fixed at the center of the mounting bracket (11). The end of the guide rod (13) is inserted into the valve core (12) and is slidably connected to the valve core (12). A sealing spring (14) is fixed between the valve core (12) and the mounting bracket (11).

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