Liquid hydrogen storage and transportation tank with quick loading and unloading capacity

Abstract

The utility model relates to the technical field of liquid hydrogen storage and transportation tanks, and discloses a liquid hydrogen storage and transportation tank with quick loading and unloading capacity, the liquid hydrogen storage and transportation tank comprises a tank body and a pump arranged on one side of the tank body, the side wall of the lower end of the tank body is fixedly communicated with a conveying pipe, the pump is arranged on the conveying pipe, and a filling self-feedback mechanism is fixedly arranged on the pipe wall of the conveying pipe. An on-off control mechanism is further installed on the pipe wall of the conveying pipe. The problems that the pressure in the tank body is too large due to the fact that the pump machine works all the time, the pressure relief step needs to be added, and certain danger is brought can be solved.

Description

Technical Field

[0001] The present application belongs to the technical field of liquid hydrogen storage and transportation tanks, and in particular, relates to a liquid hydrogen storage and transportation tank with rapid loading and unloading capabilities. Background Art

[0002] Liquid hydrogen storage tanks are equipment used to store and transport liquid hydrogen. Liquid hydrogen is a fuel with extremely low temperature and high pressure, so it requires special storage and transportation methods. Liquid hydrogen storage tanks are generally made of high-strength materials, such as stainless steel or alloys. They have strong insulation properties to prevent excessive evaporation of liquid hydrogen during transportation.

[0003] In order to realize the rapid loading and unloading function of liquid hydrogen storage and transportation tanks, some liquid hydrogen storage and transportation tanks will be equipped with pumps for loading and unloading of liquid hydrogen. However, when transporting liquid hydrogen into the tank in actual use, it is not possible to quickly and timely determine whether the tank is full of liquid hydrogen, causing the pump to continue working, which in turn causes the pressure in the tank to be too high and requires subsequent pressure relief operations, which is very inconvenient. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and to propose a liquid hydrogen storage tank with rapid loading and unloading capabilities.

[0005] In order to achieve the above purpose, this application adopts the following technical solutions:

[0006] A liquid hydrogen storage and transportation tank with rapid loading and unloading capabilities comprises a tank body and a pump installed on one side of the tank body, wherein the lower end side wall of the tank body is fixedly connected to a delivery pipe, the pump is installed on the delivery pipe, a full self-feedback mechanism is fixedly installed on the wall of the delivery pipe, and an on-off control mechanism is also installed on the wall of the delivery pipe.

[0007] Preferably, the filling self-feedback mechanism includes a pressure cylinder fixedly connected to the upper surface of the conveying pipe, a sealing sleeve inside the pressure cylinder is provided with a force-bearing piston, the upper end of the force-bearing piston is fixedly connected with a trigger rod, the upper end of the trigger rod passes through the upper end of the pressure cylinder, a trigger cylinder is fixedly installed on the upper end of the pressure cylinder, a trigger switch is fixedly installed on the top of the inner wall of the trigger cylinder, and a pressure spring mounted outside the trigger rod is fixedly installed on the upper end of the force-bearing piston and the top of the inner wall of the pressure cylinder.

[0008] Preferably, the on-off control mechanism includes an on-off shell installed on the conveying pipe, the upper end of the on-off shell is integrally connected with a storage shell, an on-off valve plate is arranged in the on-off shell, the upper end of the on-off valve plate is fixedly connected with a push-pull rod, the upper end of the push-pull rod passes through the upper end of the storage shell and is fixedly connected with a push-pull plate, the upper end of the on-off valve plate and the top of the inner wall of the storage shell are fixedly connected with a plurality of pull-up springs sleeved on the outside of the push-pull rod, and the upper outer wall of the storage shell is fixedly clamped with a pressing mechanism clamped on the upper end of the push-pull plate.

[0009] Preferably, the pressing mechanism includes a U-shaped pressing plate clamped on the upper outer wall of the storage shell, the horizontal part of the U-shaped pressing plate is crimped on the upper end of the push-pull plate, the upper outer wall of the storage shell is symmetrically fixedly connected with two T-shaped clamping blocks, and the side walls at both ends of the U-shaped pressing plate are provided with T-shaped clamping grooves that match the T-shaped clamping blocks, and the side walls at both ends of the U-shaped pressing plate are fixedly clamped to the outer wall of the storage shell through a clamping mechanism.

[0010] Preferably, the clamping mechanism includes a clamping rod movably inserted in the side wall of the U-shaped pressing plate, the outer wall of the storage shell is provided with a clamping groove matching and plugging with the clamping rod, the outer end of the clamping rod is fixedly connected with a clamping pull plate, and a clamping spring sleeved outside the clamping rod is fixedly connected between the clamping pull plate and the U-shaped pressing plate.

[0011] Preferably, the surface of the U-shaped pressing plate is coated with a layer of anti-slip extrusion rubber pad.

[0012] Compared with the prior art, the present application provides a liquid hydrogen storage tank with rapid loading and unloading capabilities, which has the following beneficial effects:

[0013] 1. The liquid hydrogen storage and transportation tank with rapid loading and unloading capabilities is provided with a tank body and a pump. The pump cooperates with a delivery pipe to perform rapid loading and unloading operations on the tank body. After the tank body is filled, the delivery pressure in the delivery pipe increases, thereby causing the force-bearing piston to move upward in the pressure cylinder, thereby causing the trigger rod to overcome the elastic force of the pressure spring and move upward. When the trigger rod acts on the trigger switch, a feedback signal stops the operation of the pump, which can avoid the problem that the pump continues to work, causing excessive pressure in the tank body, and thus requiring additional pressure relief steps and bringing certain risks.

[0014] 2. The liquid hydrogen storage and transportation tank with rapid loading and unloading capability is provided with an on-off shell. After loading and unloading, the push-pull plate is pushed down, and the push-pull plate cooperates with the push-pull rod to overcome the elastic force of the upper pull spring to drive the on-off valve plate to move down into the on-off shell to close the delivery pipe, and then the U-shaped pressing plate is quickly connected to the outer side of the upper end of the storage shell through the matching clamping of the T-shaped clamping block and the T-shaped clamping groove, and the horizontal part of the U-shaped pressing plate is pressed and fixed to the push-pull plate. At this time, the clamping rod is aligned with the clamping groove, the clamping spring pulls back the clamping pull plate, and the clamping pull plate pushes the clamping rod into the clamping groove to realize the clamping and fixing of the U-shaped pressing plate, and can realize rapid disassembly and assembly, which is convenient for the opening and closing control of the delivery pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a liquid hydrogen storage tank with rapid loading and unloading capabilities proposed in this application;

[0016] Figure 2 This is a partially enlarged structural schematic diagram of a liquid hydrogen storage and transportation tank with rapid loading and unloading capabilities proposed in this application;

[0017] Figure 3 This is a partially enlarged cross-sectional structural schematic diagram of a storage shell of a liquid hydrogen storage tank with rapid loading and unloading capabilities proposed in this application.

[0018] In the figure: 1. tank body; 2. pump; 3. delivery pipe; 4. pressure cylinder; 5. force piston; 6. trigger rod; 7. trigger cylinder; 8. trigger switch; 9. pressure spring; 10. on-off housing; 11. storage housing; 12. on-off valve plate; 13. push-pull rod; 14. push-pull plate; 15. pull-up spring; 16. U-shaped pressing plate; 17. T-shaped clamping block; 18. T-shaped clamping groove; 19. clamping rod; 20. clamping groove; 21. clamping pull plate; 22. clamping spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 A liquid hydrogen storage and transportation tank with rapid loading and unloading capabilities includes a tank body 1 and a pump 2 installed on one side of the tank body 1. The lower end side wall of the tank body 1 is fixedly connected with a delivery pipe 3, the pump 2 is installed on the delivery pipe 3, a full self-feedback mechanism is fixedly installed on the wall of the delivery pipe 3, and an on-off control mechanism is also installed on the wall of the delivery pipe 3.

[0021] The full self-feedback mechanism includes a pressure cylinder 4 fixedly connected to the upper surface of the delivery pipe 3, a force-bearing piston 5 is provided in a sealing sleeve inside the pressure cylinder 4, the upper end of the force-bearing piston 5 is fixedly connected to a trigger rod 6, the upper end of the trigger rod 6 passes through the upper end of the pressure cylinder 4, a trigger cylinder 7 is fixedly installed on the upper end of the pressure cylinder 4, a trigger switch 8 is fixedly installed on the top of the inner wall of the trigger cylinder 7, and a pressure spring 9 mounted outside the trigger rod 6 is fixedly installed on the upper end of the force-bearing piston 5 and the top of the inner wall of the pressure cylinder 4.

[0022] The on-off control mechanism includes an on-off shell 10 installed on the conveying pipe 3, the upper end of the on-off shell 10 is integrally connected with a storage shell 11, an on-off valve plate 12 is arranged in the on-off shell 10, the upper end of the on-off valve plate 12 is fixedly connected with a push-pull rod 13, the upper end of the push-pull rod 13 passes through the upper end of the storage shell 11, and is fixedly connected with a push-pull plate 14, the upper end of the on-off valve plate 12 and the top of the inner wall of the storage shell 11 are fixedly connected with a plurality of pull-up springs 15 sleeved on the outside of the push-pull rod 13, and the upper end outer wall of the storage shell 11 is fixedly clamped with a pressing mechanism clamped on the upper end of the push-pull plate 14.

[0023] The pressing mechanism includes a U-shaped pressing plate 16 clamped on the outer wall of the upper end of the storage shell 11, and the horizontal part of the U-shaped pressing plate 16 is pressed on the upper end of the push-pull plate 14. The outer wall of the upper end of the storage shell 11 is symmetrically fixed with two T-shaped blocks 17. The side walls at both ends of the U-shaped pressing plate 16 are provided with T-shaped grooves 18 that match and clamp with the T-shaped blocks 17. The side walls at both ends of the U-shaped pressing plate 16 are fixedly clamped to the outer wall of the storage shell 11 through a clamping mechanism.

[0024] The clamping mechanism includes a clamping rod 19 movably inserted into the side wall of the U-shaped pressing plate 16, and the outer wall of the storage shell 11 is provided with a clamping groove 20 that matches and is plugged into the clamping rod 19. The outer end of the clamping rod 19 is fixedly connected to a clamping pull plate 21, and a clamping spring 22 mounted outside the clamping rod 19 is fixedly connected between the clamping pull plate 21 and the U-shaped pressing plate 16.

[0025] The surface of the U-shaped pressing plate 16 is covered with a layer of anti-skid extrusion rubber pad.

[0026] The operating principle of the utility model is now described as follows:

[0027] When the present application is in use, through the provided tank body 1 and pump machine 2, the pump machine 2 cooperates with the delivery pipe 3 to perform quick loading and unloading operations on the tank body 1. After the tank body 1 is filled, the delivery pressure in the delivery pipe 3 increases, thereby causing the force-bearing piston 5 to move upward in the pressure cylinder 4, thereby causing the trigger rod 6 to overcome the elastic force of the pressure spring 9 and move upward. When the trigger rod 6 acts on the trigger switch 8, the feedback signal stops the operation of the pump machine 2, which can avoid the problem that the pump machine 2 continues to work and causes the pressure in the tank body 1 to be too high, thereby increasing the pressure relief step and bringing certain dangers. Through the provided on-off shell 10, after loading and unloading are completed, the push-pull plate 14 is pushed down, and the push-pull plate 14 is equipped with The push-pull rod 13 overcomes the elastic force of the upper pull spring 15 to drive the on-off valve plate 12 to move down into the on-off shell 10 to close the delivery pipe 3, and then the U-shaped compression plate 16 is quickly connected to the outer side of the upper end of the storage shell 11 through the matching clamping of the T-shaped clamping block 17 and the T-shaped clamping groove 18. The horizontal part of the U-shaped compression plate 16 is crimped and fixed to the push-pull plate 14. At this time, the clamping rod 19 is aligned with the clamping groove 20, and the clamping spring 22 pulls back the clamping pull plate 21. The clamping pull plate 21 pushes the clamping rod 19 into the clamping groove 20 to achieve the clamping and fixation of the U-shaped compression plate 16, and can achieve quick disassembly and assembly, which is convenient for the opening and closing control of the delivery pipe 3.

[0028] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and application concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A liquid hydrogen storage tank with rapid loading and unloading capability, comprising a tank body (1) and a pump (2) mounted on one side of the tank body (1), characterized in that: The lower end side wall of the tank body (1) is fixedly connected to a delivery pipe (3), the pump (2) is mounted on the delivery pipe (3), a full self-feedback mechanism is fixedly mounted on the wall of the delivery pipe (3), and an on-off control mechanism is also mounted on the wall of the delivery pipe (3).

2. A liquid hydrogen storage tank with rapid loading and unloading capability according to claim 1, characterized in that: The filling self-feedback mechanism comprises a pressure cylinder (4) fixedly connected to the upper surface of the delivery pipe (3); a force-bearing piston (5) is provided in a sealing sleeve inside the pressure cylinder (4); the upper end of the force-bearing piston (5) is fixedly connected to a trigger rod (6); the upper end of the trigger rod (6) passes through the upper end of the pressure cylinder (4); a trigger cylinder (7) is fixedly installed on the upper end of the pressure cylinder (4); a trigger switch (8) is fixedly installed on the top of the inner wall of the trigger cylinder (7); and a pressure spring (9) sleeved on the outside of the trigger rod (6) is fixedly installed between the upper end of the force-bearing piston (5) and the top of the inner wall of the pressure cylinder (4).

3. The liquid hydrogen storage tank with rapid loading and unloading capability according to claim 1, characterized in that: The on-off control mechanism comprises an on-off shell (10) mounted on the conveying pipe (3), the upper end of the on-off shell (10) being integrally connected with a storage shell (11), an on-off valve plate (12) being arranged inside the on-off shell (10), the upper end of the on-off valve plate (12) being fixedly connected with a push-pull rod (13), the upper end of the push-pull rod (13) passing through the upper end of the storage shell (11) and being fixedly connected with a push-pull plate (14), the upper end of the on-off valve plate (12) and the top of the inner wall of the storage shell (11) being fixedly connected with a plurality of pull-up springs (15) sleeved on the outside of the push-pull rod (13), and the upper outer wall of the storage shell (11) being fixedly clamped with a pressing mechanism clamped on the upper end of the push-pull plate (14).

4. A liquid hydrogen storage and transportation tank with rapid loading and unloading capability according to claim 3, characterized in that: The pressing mechanism comprises a U-shaped pressing plate (16) clamped on the upper outer wall of the storage shell (11); the horizontal portion of the U-shaped pressing plate (16) is pressed on the upper end of the push-pull plate (14); the upper outer wall of the storage shell (11) is symmetrically fixedly connected with two T-shaped clamping blocks (17); both end side walls of the U-shaped pressing plate (16) are provided with T-shaped clamping grooves (18) that match and clamp with the T-shaped clamping blocks (17); and the two end side walls of the U-shaped pressing plate (16) are fixedly clamped to the outer wall of the storage shell (11) by a clamping mechanism.

5. A liquid hydrogen storage tank with rapid loading and unloading capability according to claim 4, characterized in that: The clamping mechanism comprises a clamping rod (19) movably inserted into the side wall of the U-shaped pressing plate (16); the outer wall of the storage shell (11) is provided with a clamping groove (20) matched with the clamping rod (19); the outer end of the clamping rod (19) is fixedly connected with a clamping pull plate (21); and a clamping spring (22) sleeved on the outside of the clamping rod (19) is fixedly connected between the clamping pull plate (21) and the U-shaped pressing plate (16).

6. A liquid hydrogen storage and transportation tank with rapid loading and unloading capability according to claim 4, characterized in that: The surface of the U-shaped pressing plate (16) is coated with a layer of anti-slip extrusion rubber pad.

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