Testing device for supporting structure in liquid helium tank

Abstract

The utility model discloses a testing device for a supporting structure in a liquid helium tank box, which comprises a base, a hydraulic jack and a pressure sensor, a fixing frame is fixed at the front end of the base, a stretching frame and a compression frame are fixed at the rear end of the base, a trolley is arranged on the base, a front locking plate is arranged at the front end of the trolley, and a rear push plate is arranged at the rear end of the trolley. The fixing frame and the front locking plate are respectively provided with a connecting structure, a supporting structure in the liquid helium tank can be placed between the fixing frame and the front locking plate, and the fixing frame and the front locking plate can be respectively connected with the supporting structure through the connecting structures on the fixing frame and the front locking plate. The testing device can be used for testing the strength of the supporting structure in the liquid helium tank and the stability under the fatigue working condition, and therefore the supporting structure can be adjusted in a targeted mode according to the testing result.

Description

Technical Field

[0001] The utility model relates to the field of tank containers, in particular to a testing device for a supporting structure in a liquid helium tank container. Background Art

[0002] Helium, a rare and inert gas, is widely used in semiconductors, aerospace, high-end manufacturing, medical treatment, nuclear reactors, and other fields. China is a helium-deficient country, and its market demand has long relied primarily on imports. Liquid helium tank containers, as containers capable of storing and transporting liquid helium, enable seamless integration between storage and filling, both on land and at sea, between sellers and end users, and are currently the most widely used liquid helium storage and transportation equipment worldwide.

[0003] Liquid helium is stored at an ultra-low temperature of -269°C, close to absolute zero, and as a rare gas it is expensive. To prevent it from vaporizing and evaporating during transportation, the design requirements for liquid helium tank containers are very high, and the heat leakage of the entire structure must be reduced.

[0004] In order to reduce the heat leakage caused by the supporting structure in the tank container, the supporting structure must be made lighter and thinner, but this will weaken the strength of the supporting structure and cause the internal structure of the liquid helium tank container to become unstable.

[0005] There is an urgent need for a testing device for testing the strength of the supporting structure in the liquid helium tank and its stability under fatigue conditions. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a testing device for testing the strength of the supporting structure in a liquid helium tank and the stability under fatigue conditions.

[0007] In order to solve the above problems, the technical solution adopted by the utility model is: a testing device for the support structure in the liquid helium tank, characterized in that it includes: a long base, a hydraulic jack, a pressure sensor, a fixed frame is fixed on the front end of the base, a stretching frame and a compression frame are fixed on the rear end of the base, the stretching frame is located between the compression frame and the fixed frame, a trolley that can move back and forth along the base is provided on the base, a front locking plate is provided on the front end of the trolley, a rear push plate is provided on the rear end of the trolley, the rear push plate is located between the stretching frame and the compression frame, the front lock plate is located between the stretching frame and the fixed frame, a connecting structure is provided on the fixed frame and the front lock plate respectively, the supporting structure in the liquid helium tank can be placed between the fixed frame and the front lock plate, and fixed The frame and the front lock plate can be respectively connected to the supporting structure through the connecting structures thereon, the hydraulic jack can be placed between the tensile frame and the rear push plate, and then after the hydraulic jack is extended, the supporting structure installed between the fixed frame and the front lock plate can be tensile tested through the tensile frame and the rear push plate, and the tensile thrust of the hydraulic jack can be detected by placing the diaphragm of the pressure sensor between the hydraulic jack and the tensile frame or between the hydraulic jack and the rear push plate, and the hydraulic jack can be placed between the compression frame and the rear push plate, and then after the hydraulic jack is extended, the supporting structure installed between the fixed frame and the front lock plate can be compression tested through the compression frame and the rear push plate, and the compression thrust of the hydraulic jack can be detected by placing the diaphragm of the pressure sensor between the hydraulic jack and the compression frame or between the hydraulic jack and the rear push plate.

[0008] Furthermore, the aforementioned testing device for the support structure in the liquid helium tank container, wherein: the base is an H-shaped steel, the flange plates on the base are arranged vertically, the web plates on the base are arranged horizontally, the trolley is placed on the web plates, and the flange plates on both sides can limit the left and right positions of the trolley.

[0009] Furthermore, the aforementioned testing device for the support structure in the liquid helium tank box, wherein: the structure of the trolley also includes: two side plates and two cylindrical rollers, the two side plates are located on the left and right sides between the front lock plate and the rear push plate, and the front and rear ends of the two side plates are respectively fixed to the front lock plate and the rear push plate, the two cylindrical rollers are arranged front and back and installed between the front lock plate and the rear push plate, the two ends of the two cylindrical rollers are respectively installed with the two side plates, and the two cylindrical rollers can roll on the base, thereby enabling the trolley to move forward and backward.

[0010] Furthermore, the aforementioned testing device for the support structure in the liquid helium tank box, wherein: a top guardrail is provided on the base, the top guardrail is located above the trolley, and the top guardrail can upper limit the trolley when the trolley is unstable and bounces up due to force, thereby preventing the trolley from detaching from the base.

[0011] Furthermore, in the aforementioned testing device for the support structure in a liquid helium tank, reinforcing ribs are respectively welded on the back of the base below the fixing frame, the stretching frame, and the compression frame.

[0012] Furthermore, the aforementioned testing device for the support structure in the liquid helium tank container, wherein: the connection structure includes: a sleeve, a rotating shaft, a handle, and an angle piece; the sleeve is fixedly inserted into the fixing frame and the front lock plate; the rotating shaft is inserted into the sleeve and clamped with the sleeve so that the rotating shaft can rotate in the sleeve but cannot be separated from the sleeve; the handle is installed on the outer end of the rotating shaft so that the rotating shaft can be driven to rotate; the angle piece is installed on the inner end of the rotating shaft; the supporting structure is provided with an angle hole; when the angle piece passes through the angle hole and is driven by the rotating shaft to rotate until it cannot exit the angle hole, the fixing frame and the front lock plate can be connected to the supporting structure through the angle piece.

[0013] The advantages of the present invention are that the testing device can be used to test the strength of the support structure in the liquid helium tank and its stability under fatigue conditions, so that the support structure can be adjusted in a targeted manner according to the test results, thereby greatly improving the quality of the liquid helium tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of the testing device for the support structure in the liquid helium tank box described in the present invention.

[0015] Figure 2 for Figure 1 Schematic diagram of the top view structure. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.

[0017] like Figure 1 、 Figure 2As shown, a testing device for a support structure in a liquid helium tank container comprises: a long strip base 1, a hydraulic jack 2, and a pressure sensor 3. A fixing frame 4 is fixed on the front end of the base 1, and a stretching frame 5 and a compression frame 6 are fixed on the rear end of the base 1. The stretching frame 5 is located between the compression frame 6 and the fixing frame 4. A trolley 7 that can move forward and backward along the base 1 is provided on the base 1. A front locking plate 8 is provided on the front end of the trolley 7, and a rear push plate 9 is provided on the rear end of the trolley 7. The rear push plate 9 is located between the stretching frame 5 and the compression frame 6, and the front lock plate 8 is located between the stretching frame 5 and the fixing frame 4. A connecting structure is provided on each of the fixing frame 4 and the front lock plate 8. The supporting structure in the liquid helium tank container can be placed between the fixing frame 4 and the front lock plate 8, and the fixing frame 4 and the front lock plate 8 can be respectively connected through the fixing frame 4 and the front lock plate 8. The connecting structure is connected to the supporting structure, and the hydraulic jack 2 can be placed between the tensile frame 5 and the rear push plate 9. Then, after the hydraulic jack 2 is extended, the tensile test of the supporting structure installed between the fixed frame 4 and the front lock plate 8 can be performed through the tensile frame 5 and the rear push plate 9. By placing the diaphragm of the pressure sensor 3 between the hydraulic jack 2 and the tensile frame 5 or the hydraulic jack 2 and the rear push plate 9, the tensile thrust of the hydraulic jack 2 can be detected. The hydraulic jack 2 can be placed between the compression frame 6 and the rear push plate 9. Then, after the hydraulic jack 2 is extended, the compression test of the supporting structure installed between the fixed frame 4 and the front lock plate 8 can be performed through the compression frame 6 and the rear push plate 9. By placing the diaphragm of the pressure sensor 3 between the hydraulic jack 2 and the compression frame 6 or the hydraulic jack 2 and the rear push plate 9, the compression thrust of the hydraulic jack 2 can be detected.

[0018] In this embodiment, the base 1 is an H-shaped steel, the flange plates 10 on the base 1 are arranged vertically, the web plates 11 on the base 1 are arranged horizontally, the trolley 7 is placed on the web plates 11, and the flange plates 10 on both sides can limit the trolley 7 to the left and right.

[0019] The structure of the trolley 7 also includes: two side plates 12 and two cylindrical rollers 13. The two side plates 12 are located on the left and right sides between the front lock plate 8 and the rear push plate 9, and the front and rear ends of the two side plates 12 are fixed to the front lock plate 8 and the rear push plate 9 respectively. The two cylindrical rollers 13 are arranged front to back and installed between the front lock plate 8 and the rear push plate 9. The two ends of the two cylindrical rollers 13 are respectively installed on the two side plates 12. The two cylindrical rollers 13 can roll on the base 1, so that the trolley 7 can move forward and backward.

[0020] A top guardrail 14 is provided on the base 1 and is located above the trolley 7 . The top guardrail 14 can limit the position of the trolley 7 when the trolley 7 is unstable and bounces up due to force, thereby preventing the trolley 7 from leaving the base 1 .

[0021] Reinforcement ribs 15 are welded on the back of the base 1 below the fixing frame 4 , the stretching frame 5 , and the compression frame 6 .

[0022] The connecting structure includes: a sleeve 16, a rotating shaft 17, a handle 18, and an angle piece 19. The sleeve 16 is fixedly penetrated on the fixing frame 4 and the front lock plate 8. The rotating shaft 17 is penetrated in the sleeve 16 and is clamped with the sleeve 16 so that the rotating shaft 17 can rotate in the sleeve 16 but cannot be separated from the sleeve 16. The handle 18 is installed on the outer end of the rotating shaft 17 so that the rotating shaft 17 can be driven to rotate. The angle piece 19 is installed on the inner end of the rotating shaft 17. An angle hole is provided on the supporting structure. When the angle piece 19 passes through the angle hole and rotates until it cannot exit the angle hole under the drive of the rotating shaft 17, the fixing frame 4 and the front lock plate 8 can be connected to the supporting structure through the angle piece.

Claims

1. A testing device for a support structure in a liquid helium tank, characterized by: include: A long strip base, a hydraulic jack, and a pressure sensor are provided. A fixed frame is fixed on the front end of the base, and a stretching frame and a compression frame are fixed on the rear end of the base. The stretching frame is located between the compression frame and the fixed frame. A trolley that can move forward and backward along the base is provided on the base. A front locking plate is provided on the front end of the trolley, and a rear push plate is provided on the rear end of the trolley. The rear push plate is located between the stretching frame and the compression frame, and the front lock plate is located between the stretching frame and the fixed frame. A connecting structure is provided on the fixed frame and the front lock plate respectively. The support structure in the liquid helium tank can be placed between the fixed frame and the front lock plate, and the fixed frame and the front lock plate can be connected to the support structure through the connecting structures thereon respectively. The hydraulic jack can be placed between the tensile frame and the rear push plate, and then after the hydraulic jack is extended, the supporting structure installed between the fixed frame and the front lock plate can be tensile tested through the tensile frame and the rear push plate. By placing the diaphragm of the pressure sensor between the hydraulic jack and the tensile frame or the hydraulic jack and the rear push plate, the tensile thrust of the hydraulic jack can be detected. The hydraulic jack can be placed between the compression frame and the rear push plate, and then after the hydraulic jack is extended, the supporting structure installed between the fixed frame and the front lock plate can be compression tested through the compression frame and the rear push plate. By placing the diaphragm of the pressure sensor between the hydraulic jack and the compression frame or the hydraulic jack and the rear push plate, the compression thrust of the hydraulic jack can be detected.

2. A testing device for a support structure in a liquid helium tank according to claim 1, characterized in that: The base is an H-shaped steel, the flange plates on the base are arranged vertically, the web plates on the base are arranged horizontally, the trolley is placed on the web plates, and the flange plates on both sides can limit the left and right positions of the trolley.

3. A testing device for a support structure in a liquid helium tank according to claim 1 or 2, characterized in that: The structure of the trolley also includes: two side plates and two cylindrical rollers. The two side plates are located on the left and right sides between the front locking plate and the rear pushing plate, and the front and rear ends of the two side plates are fixed to the front locking plate and the rear pushing plate respectively. The two cylindrical rollers are arranged front to back and installed between the front locking plate and the rear pushing plate. The two ends of the two cylindrical rollers are respectively installed on the two side plates. The two cylindrical rollers can roll on the base, so that the trolley can move forward and backward.

4. A testing device for a support structure in a liquid helium tank according to claim 1 or 2, characterized in that: A top guardrail is provided on the base. The top guardrail is located above the trolley. The top guardrail can limit the trolley when the trolley is unstable and bounces up due to force, thereby preventing the trolley from falling off the base.

5. A testing device for a support structure in a liquid helium tank according to claim 1 or 2, characterized in that: Reinforcement ribs are welded on the back of the base below the fixed frame, the stretching frame and the compression frame.

6. A testing device for a support structure in a liquid helium tank according to claim 1 or 2, characterized in that: The connection structure includes: a sleeve, a rotating shaft, a handle, and an angle piece. The sleeve is fixedly inserted into the fixing frame and the front lock plate. The rotating shaft is inserted into the sleeve and clamped with the sleeve so that the rotating shaft can rotate in the sleeve but cannot be separated from the sleeve. The handle is installed on the outer end of the rotating shaft so that the rotating shaft can be driven to rotate. The angle piece is installed on the inner end of the rotating shaft. An angle hole is provided on the supporting structure. When the angle piece passes through the angle hole and rotates until it cannot exit the angle hole under the drive of the rotating shaft, the fixing frame and the front lock plate can be connected to the supporting structure through the angle piece.

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