Liquid hydrogen storage tank convenient for sampling

Abstract

The utility model relates to the technical field of liquid hydrogen storage, in particular to a liquid hydrogen storage tank convenient for sampling. According to the technical scheme, the device comprises a quantitative sampling pipe and a liquid hydrogen storage tank, the two ends of the quantitative sampling pipe are fixedly connected with a first valve and a second valve respectively, the tail end of the second valve is fixedly connected with a connecting hose, and the tail end of the connecting hose is fixedly connected to the position, close to the lower surface, of one side of the outer surface of the liquid hydrogen storage tank. The outer surface of the quantitative sampling pipe is fixedly connected with a third valve, and the tail end of the first valve is fixedly connected with a connector. According to the storage tank, a liquid hydrogen sample in the storage tank can be conveniently and quantitatively collected, the leakage phenomenon is avoided in the sampling process, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid hydrogen storage, in particular to a liquid hydrogen storage tank convenient for sampling. Background Technique

[0002] Liquid hydrogen is a liquid form obtained by cooling hydrogen gas to an extremely low temperature. It is a colorless and odorless high-energy liquid fuel. In the application of hydrogen energy, due to its larger storage and transportation capacity, high purity, faster filling, and smaller floor area, it will become a better choice under the greater future hydrogen refueling demand.

[0003] Currently, in the process of using liquid hydrogen, in order to ensure that the purity of the used liquid hydrogen meets the use standard, it is necessary to sample and detect the liquid hydrogen in the storage tank. However, during the sampling process of the existing liquid hydrogen storage tank, leakage is likely to occur, and it is not convenient for quantitative sampling. Therefore, we propose a liquid hydrogen storage tank convenient for sampling. Content of the Utility Model

[0004] The purpose of the utility model is to provide a liquid hydrogen storage tank convenient for sampling, which has the advantages of being convenient for quantitatively taking liquid hydrogen samples inside the storage tank, avoiding leakage during the sampling process, and improving safety, and solves the problems that the existing liquid hydrogen storage tank is prone to leakage and is not convenient for quantitative sampling during the sampling process.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A liquid hydrogen storage tank convenient for sampling, including a quantitative sampling tube and a liquid hydrogen storage tank body. Both ends of the quantitative sampling tube are respectively fixedly connected with a first valve and a second valve. The end of the second valve is fixedly connected with a connecting hose, and the end of the connecting hose is fixedly connected to a position on the outer surface of the liquid hydrogen storage tank body near the lower surface. A third valve is fixedly connected to the outer surface of the quantitative sampling tube, and the end of the first valve is fixedly connected with a connector.

[0006] Preferably, a snap ring is fixedly installed at a position on the outer surface of the liquid hydrogen storage tank body above the connecting hose. A notch is provided on the outer surface of the snap ring. When the quantitative sampling tube, the first valve, the second valve, etc. are not in use, or when the liquid hydrogen storage tank body is transported, the quantitative sampling tube enters the inside of the snap ring from the notch, so as to store and fix the quantitative sampling tube, the first valve, and the second valve.

[0007] Preferably, fixed sleeves are provided at positions near both ends on the outer surface of the liquid hydrogen storage tank body. Through holes are provided on the outer surfaces of both fixed plates, and both ends of the liquid hydrogen storage tank body pass through the two through holes respectively. A support plate is fixedly installed at a position below the liquid hydrogen storage tank body inside the through hole. The support plate, in cooperation with the two fixed plates, plays a role in fixedly supporting the liquid hydrogen storage tank body. When hoisting the liquid hydrogen storage tank body through the lifting ring, due to the large-area force between the support plate and the liquid hydrogen storage tank body, it is not easy to cause deformation of the liquid hydrogen storage tank body.

[0008] Preferably, the inner sides of the two fixed plates near the upper surface are fixedly connected by a connecting rod, and the connecting rod improves the strength between the two fixed plates.

[0009] Preferably, lifting rings are fixedly installed on the upper surfaces of both fixed plates, and the liquid hydrogen storage tank body is hoisted through the lifting rings.

[0010] Preferably, buffer rubber pads are fixedly installed on the lower surfaces of both fixed plates. The buffer rubber pads play a buffering role for the fixed plates and the liquid hydrogen storage tank body, playing a protective role.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a liquid hydrogen storage tank body, a connecting hose, a first valve, a second valve, a third valve, and a quantitative sampling tube, the present utility model achieves the effect of facilitating the quantitative sampling of liquid hydrogen samples inside the storage tank, and avoiding leakage during the sampling process, thereby improving safety. The external liquid hydrogen injection pipe or liquid hydrogen use pipe is fixedly connected to the first valve through a connector. When it is necessary to take a liquid hydrogen sample inside the liquid hydrogen storage tank body, the first valve and the third valve are closed, and the second valve is opened for a period of time. Then, the liquid hydrogen enters the quantitative sampling tube. After closing the second valve and opening the third valve, the liquid hydrogen inside the quantitative sampling tube is discharged to complete the quantitative sampling of the liquid hydrogen. Since the second valve blocks the connection between the quantitative sampling tube and the liquid hydrogen storage tank body during the sampling process, no liquid hydrogen leakage will occur, improving safety.

[0013] By providing a snap ring and a notch, the present utility model achieves the effect of facilitating the fixation of the quantitative sampling tube when not in use. When the quantitative sampling tube, the first valve, the second valve, etc. are not in use, or when the liquid hydrogen storage tank body is transported, the quantitative sampling tube enters the snap ring through the notch, thereby storing and fixing the quantitative sampling tube, the first valve, and the second valve.

[0014] The utility model realizes the function of fixing and supporting the liquid hydrogen storage tank body through the fixing plate, the through hole, the supporting plate and the lifting ring, and also avoids the deformation of the liquid hydrogen storage tank body during hoisting. The supporting plate cooperates with the two fixing plates to play a role in fixing and supporting the liquid hydrogen storage tank body. When the liquid hydrogen storage tank body is hoisted through the lifting ring, due to the large-area force between the supporting plate and the liquid hydrogen storage tank body, it is not easy to cause the deformation of the liquid hydrogen storage tank body. Brief Description of the Drawings

[0015] Figure 1 is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 is a partial three-dimensional schematic diagram of the quantitative sampling tube of the utility model;

[0017] Figure 3 For the utility model Figure 1 is an enlarged structural schematic diagram of A in;

[0018] Figure 4 is a partial three-dimensional schematic diagram of the fixing plate of the utility model;

[0019] Figure 5 is a partial three-dimensional schematic diagram of the supporting plate of the utility model;

[0020] Figure 6 is a front view structural schematic diagram of the utility model.

[0021] Reference numerals: 1, quantitative sampling tube; 2, liquid hydrogen storage tank body; 3, fixing plate; 4, lifting ring; 5, through hole; 6, connecting rod; 7, supporting plate; 8, buffer rubber pad; 9, connecting head; 10, first valve; 11, second valve; 12, connecting hose; 13, third valve; 14, notch; 15, snap ring. Detailed Embodiment

[0022] The following further describes the technical solutions of the utility model in conjunction with the drawings and specific embodiments.

[0023] Embodiment 1

[0024] As Figures 1-3 shown, the liquid hydrogen storage tank convenient for sampling proposed by the utility model includes a quantitative sampling tube 1 and a liquid hydrogen storage tank body 2. The two ends of the quantitative sampling tube 1 are respectively fixedly connected with a first valve 10 and a second valve 11. The end of the second valve 11 is fixedly connected with a connecting hose 12, and the end of the connecting hose 12 is fixedly connected to a position on the outer surface of the liquid hydrogen storage tank body 2 near the lower surface. The outer surface of the quantitative sampling tube 1 is fixedly connected with a third valve 13. The end of the first valve 10 is fixedly connected with a connecting head 9. The external liquid hydrogen injection tube or liquid hydrogen use tube is fixedly connected through the connecting head 9 and the first valve 10.

[0025] When the utility model is in use, when it is necessary to take a liquid hydrogen sample inside the liquid hydrogen storage tank body 2, the first valve 10 and the third valve 13 are closed. After the second valve 11 is opened for a period of time, the liquid hydrogen enters into the quantitative sampling tube 1. Then the second valve 11 is closed, and after the third valve 13 is opened, the liquid hydrogen inside the quantitative sampling tube 1 is discharged to complete the quantitative sampling of the liquid hydrogen. During the sampling process, since the second valve 11 blocks the connection between the quantitative sampling tube 1 and the liquid hydrogen storage tank body 2, the phenomenon of liquid hydrogen leakage will not occur, improving the safety performance.

[0026] Embodiment Two

[0027] As Figures 1 to 4 shown, for the liquid hydrogen storage tank facilitating sampling proposed by the utility model, compared with Embodiment One, this embodiment further includes a snap ring 15 fixedly installed at a position above the connecting hose 12 on the outer surface of the liquid hydrogen storage tank body 2. The snap ring 15 is made of elastic material such as rubber, and a notch 14 is arranged on the outer surface of the snap ring 15.

[0028] In this embodiment, when the quantitative sampling tube 1, the first valve 10, the second valve 11, etc. are not in use, or when the liquid hydrogen storage tank body 2 is transported, the quantitative sampling tube 1 enters into the snap ring 15 from the notch 14, so as to accommodate and fix the quantitative sampling tube 1, the first valve 10 and the second valve 11.

[0029] Embodiment Three

[0030] As Figures 1 to 4 shown, for the liquid hydrogen storage tank facilitating sampling proposed by the utility model, compared with Embodiment One, this embodiment further includes fixing plates 3 fixedly sleeved on the outer surface of the liquid hydrogen storage tank body 2 near both ends. Through holes 5 are arranged on the outer surfaces of the two fixing plates 3, and both ends of the liquid hydrogen storage tank body 2 pass through the two through holes 5 respectively. A support plate 7 is fixedly installed at a position below the liquid hydrogen storage tank body 2 inside the through hole 5. The inner sides of the two fixing plates 3 are fixedly connected by a connecting rod 6 near the upper surface. The connecting rod 6 enhances the strength between the two fixing plates 3. Hoisting rings 4 are fixedly installed on the upper surfaces of the two fixing plates 3, and buffer rubber pads 8 are fixedly installed on the lower surfaces of the two fixing plates 3. The buffer rubber pads 8 play a buffering role for the fixing plates 3 and the liquid hydrogen storage tank body 2, playing a protective role.

[0031] In this embodiment, the support plate 7 cooperates with the two fixing plates 3 to play a role in fixedly supporting the liquid hydrogen storage tank body 2. When hoisting the liquid hydrogen storage tank body 2 through the hoisting rings 4, since the large-area force is applied between the support plate 7 and the liquid hydrogen storage tank body 2, it is not easy to cause deformation of the liquid hydrogen storage tank body 2.

[0032] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A liquid hydrogen storage tank convenient for sampling, comprising a quantitative sampling tube (1) and a liquid hydrogen storage tank body (2), characterized in that: The two ends of the quantitative sampling tube (1) are respectively fixedly connected to a first valve (10) and a second valve (11); the end of the second valve (11) is fixedly connected to a connecting hose (12); and the end of the connecting hose (12) is fixedly connected to a position close to the lower surface of one side of the outer surface of the liquid hydrogen storage tank (2); the outer surface of the quantitative sampling tube (1) is fixedly connected to a third valve (13); and the end of the first valve (10) is fixedly connected to a connector (9).

2. The liquid hydrogen storage tank convenient for sampling according to claim 1 is characterized in that: A clamping ring (15) is fixedly mounted on the outer surface of the liquid hydrogen storage tank body (2) at a position above the connecting hose (12), and a notch (14) is provided on the outer surface of the clamping ring (15).

3. The liquid hydrogen storage tank for easy sampling according to claim 1 is characterized in that: The outer surface of the liquid hydrogen storage tank body (2) is fixedly sleeved with fixing plates (3) near both ends, and the outer surfaces of the two fixing plates (3) are both provided with through-holes (5), and the two ends of the liquid hydrogen storage tank body (2) pass through the two through-holes (5) respectively, and a support plate (7) is fixedly installed inside the through-holes (5) at a position below the liquid hydrogen storage tank body (2).

4. The liquid hydrogen storage tank for easy sampling according to claim 3 is characterized in that: The inner sides of the two fixing plates (3) are fixedly connected near the upper surface via a connecting rod (6).

5. The liquid hydrogen storage tank for easy sampling according to claim 3 is characterized in that: A lifting ring (4) is fixedly mounted on the upper surface of the two fixing plates (3).

6. The liquid hydrogen storage tank for easy sampling according to claim 3 is characterized in that: Buffer rubber pads (8) are fixedly mounted on the lower surfaces of the two fixing plates (3).

Images