Explosion-proof transport case for hydrogen cylinders of hydrogen energy

Abstract

The utility model relates to the technical field of hydrogen cylinder transportation, in particular to a hydrogen energy hydrogen cylinder anti-explosion transport case which comprises a transport case body, an aerogel heat insulation layer is arranged in the transport case body, anti-skid supporting legs are welded and fixed to the bottom face of the transport case body, and the anti-skid supporting legs are distributed on the transport case body in an equidistant and staggered mode. An outer anti-collision reinforcing plate is welded and fixed to the outer surface of the transport box body, and a sealing box cover is rotationally connected to the top face of the transport box body. By means of a linkage mechanism of the pressure relief groove and the sealing plug, high-pressure gas is automatically released when the hydrogen cylinder leaks, workers are reminded of timely overhauling through the warning indicator, meanwhile, leaked gas is collected through the recycling cavity, environmental pollution is reduced, after the hydrogen cylinder is placed in the rubber base, the gravity of the hydrogen cylinder drives the supporting bottom plate and the connecting rod system, and the safety of the hydrogen cylinder is improved. The arc-shaped clamping plates move oppositely to automatically clamp and fix the hydrogen cylinder, and the buffer limiting seat at the top is matched to prevent the hydrogen cylinder from shaking.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen cylinder transportation technology, and in particular to an explosion-proof transportation box for hydrogen energy cylinders. Background Technology

[0002] As a clean energy source, the safety of hydrogen storage and transportation is of paramount importance. Hydrogen cylinders are pressure vessels specifically designed for storing and transporting hydrogen. Due to the flammable, explosive, highly diffusive, and high-pressure storage characteristics of hydrogen, there are high safety risks during storage and transportation. Therefore, explosion-proof transportation of hydrogen cylinders is a key measure to ensure safety and prevent hydrogen leaks, explosions, and other potential hazards.

[0003] In existing technologies, such as the "Explosion-proof Transport Box for Hydrogen Energy Cylinders" in Chinese Patent CN219116067U, this utility model uses a placement plate and a fixing plate at the bottom of the box, combined with a fourth elastic element to clamp the lower end of the hydrogen cylinder to prevent it from sliding up and down. The upper end of the hydrogen cylinder is clamped by a clamping plate and a second elastic element to prevent it from colliding with the box wall during transportation. The sealing shell and sealing plate set inside the box effectively prevent hydrogen leakage and achieve the purpose of explosion protection.

[0004] The existing method of transporting hydrogen cylinders uses springs to clamp them and limit their movement. However, when encountering bumpy roads during transport, the hydrogen cylinders are prone to shaking inside the transport container, which affects their stability. Furthermore, if a hydrogen cylinder leaks during transport, the leak cannot be detected in time, leading to an increase in gas pressure inside the container and posing a risk of explosion. Utility Model Content

[0005] To address the issues of using springs to clamp hydrogen cylinders during transport, which can cause them to shake inside the transport container when encountering bumpy roads, affecting their stability, and the inability to detect leaks in time, leading to increased pressure inside the container and a potential explosion risk.

[0006] The technical solution of this utility model is as follows: a hydrogen energy hydrogen cylinder explosion-proof transport box, including a transport box body, an aerogel heat insulation layer is provided inside the transport box body, anti-slip support feet are welded and fixed on the bottom surface of the transport box body, and the anti-slip support feet are evenly and alternately distributed on the transport box body, an outer anti-collision reinforcement plate is welded and fixed on the outer surface of the transport box body, and a sealed box cover is rotatably connected to the top surface of the transport box body.

[0007] Preferably, buffer springs are fixedly connected at equal intervals to the bottom of the inner wall of the transport box body, and a support base plate is fixedly connected to the end of the buffer springs. A rubber base is fixedly installed on the top surface of the support base plate.

[0008] Preferably, the bottom of the inner wall of the transport box body is symmetrically welded with a limiting support seat, the side of the limiting support seat is symmetrically provided with a limiting groove, and the inner wall of the limiting groove is slidably connected with a support rod.

[0009] Preferably, a first connecting rod is symmetrically rotatably connected to the side of the supporting base plate, the end of the first connecting rod is rotatably connected to the supporting rod, a second connecting rod is rotatably connected to the outside of the supporting rod, and a fixed seat is symmetrically fixedly connected to the inner wall of the transport box body, the fixed seat being rotatably connected to the center position of the second connecting rod.

[0010] Preferably, a telescopic rod is fixedly connected to the top side of the second link, and the telescopic rods are symmetrically distributed at equal intervals on the second link. A clamping spring is slidably sleeved on the outer side of the telescopic rod, and an arc-shaped clamping plate is fixedly connected to the end of the telescopic rod.

[0011] Preferably, a pressure relief groove is provided on the top surface of the transport box body, a pressure relief support is fixedly connected to the top of the inner wall of the transport box body, and the pressure relief support is located directly below the pressure relief groove. A pressure relief spring is fixedly connected to the top surface of the pressure relief support, and a sealing plug is fixedly connected to the end of the pressure relief spring.

[0012] Preferably, the top surface of the transport box body is provided with a pressure relief chamber, the inside of the pressure relief chamber is provided with a contact switch, the contact switch is located directly above the sealing plug, the top surface of the pressure relief chamber is provided with an alarm, the alarm is electrically connected to the contact switch, the inside of the pressure relief chamber is provided with a pressure relief through hole, and the inside of the pressure relief chamber is provided with a recovery chamber.

[0013] Preferably, the bottom surface of the sealed box cover is provided with a sealing ring, and the bottom surface of the sealed box cover is provided with a buffer limiting seat, and the bottom surface of the buffer limiting seat is provided with a limiting groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. When the internal hydrogen cylinder leaks, the pressure inside the transport box will increase. Under high pressure, the gas inside the transport box will overcome the spring force of the pressure relief spring and push the sealing plug upward, opening the pressure relief groove. This allows the gas to be released quickly through the pressure relief groove. When the sealing plug moves upward, it will squeeze the contact switch, triggering the alarm to alert the staff that the hydrogen cylinder is leaking. This facilitates timely inspection and maintenance of the hydrogen cylinder. The gas released through the pressure relief groove enters the recovery chamber through the pressure relief through-hole for collection, preventing hydrogen from leaking directly into the environment. When the pressure inside the transport box decreases, the spring force of the pressure relief spring will pull the sealing plug downward to block the pressure relief groove, reducing the amount of gas leakage.

[0016] 2. After placing the hydrogen cylinder into the rubber base, the weight of the hydrogen cylinder itself will push the support base plate downwards. This will cause the support rod to slide outwards within the limiting groove via the first connecting rod, and the support rod will also cause the bottom end of the second connecting rod to slide outwards, allowing the second connecting rod to rotate around the fixed seat. This will cause the tops of the two sets of second connecting rods to move inwards, thereby pushing the two sets of arc-shaped clamps to move towards each other, clamping and fixing the placed hydrogen cylinder. The buffer limiting seat will then buffer and limit the top of the hydrogen cylinder, thus preventing the hydrogen cylinder from shaking inside the transport box. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the aerogel insulation layer of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the limiting support base of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the pressure relief groove of this utility model;

[0021] Figure 5 The diagram shown is a three-dimensional cross-sectional view of the pressure relief chamber of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Transport box body; 2. Aerogel insulation layer; 3. Anti-slip support feet; 4. External anti-collision reinforcement plate; 5. Sealed box cover; 101. Buffer spring; 102. Support base plate; 103. Rubber base; 104. Limiting support seat; 105. Limiting slide groove; 106. Support rod; 107. First connecting rod; 108. Second connecting rod; 109. Fixed seat; 110. Telescopic rod; 111. Clamping spring; 112. Arc-shaped clamping plate; 201. Pressure relief groove; 202. Pressure relief support; 203. Pressure relief spring; 204. Sealing plug; 205. Pressure relief chamber; 206. Contact switch; 207. Warning device; 208. Pressure relief through hole; 209. Recovery chamber; 501. Sealing ring; 502. Buffer limiting seat; 503. Limiting groove. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 This utility model provides an embodiment: a hydrogen energy hydrogen cylinder explosion-proof transport box, including a transport box body 1, an aerogel heat insulation layer 2 is provided inside the transport box body 1, anti-slip support feet 3 are welded and fixed on the bottom surface of the transport box body 1, and the anti-slip support feet 3 are equidistantly and alternately distributed on the transport box body 1, an outer anti-collision reinforcement plate 4 is welded and fixed on the outer surface of the transport box body 1, and a sealing box cover 5 is rotatably connected to the top surface of the transport box body 1.

[0025] The bottom of the inner wall of the transport box body 1 is fixedly connected with buffer springs 101 at equal intervals. The end of the buffer spring 101 is fixedly connected to the support base plate 102. The top surface of the support base plate 102 is fixedly installed with a rubber base 103. The rubber base 103 can provide protection for the bottom of the hydrogen cylinder. After the hydrogen cylinder is placed in the rubber base 103, the weight of the hydrogen cylinder can push the support base plate 102 downward, compressing the buffer springs 101. The elastic force of the buffer springs 101 can provide support for the support base plate 102.

[0026] A limit support seat 104 is symmetrically welded to the bottom of the inner wall of the transport box body 1. A limit slide groove 105 is symmetrically opened on the side of the limit support seat 104. A support rod 106 is slidably connected to the inner wall of the limit slide groove 105. The limit support seat 104 provides support for the support rod 106. The movement trajectory of the support rod 106 can be restricted by the limit slide groove 105.

[0027] A first connecting rod 107 is symmetrically rotatably connected to the side of the supporting base plate 102. The end of the first connecting rod 107 is rotatably connected to the supporting rod 106. A second connecting rod 108 is rotatably connected to the outside of the supporting rod 106. A fixed seat 109 is symmetrically fixedly connected to the inner wall of the transport box body 1. The fixed seat 109 is rotatably connected to the center position of the second connecting rod 108. During the downward movement of the supporting base plate 102, the first connecting rod 107 rotatably connected on both sides will push the supporting rod 106 to slide outward in the limiting slide groove 105. When the supporting rod 106 pushes the bottom end of the second connecting rod 108 to slide outward, the second connecting rod 108 will rotate around the fixed seat 109, so that the top ends of the two sets of second connecting rods 108 can move inward, which is convenient for clamping and fixing the hydrogen cylinder.

[0028] A telescopic rod 110 is fixedly connected to the top side of the second connecting rod 108, and the telescopic rods 110 are symmetrically distributed at equal intervals on the second connecting rod 108. A clamping spring 111 is slidably sleeved on the outer side of the telescopic rod 110, and an arc-shaped clamping plate 112 is fixedly connected to the end of the telescopic rod 110. The second connecting rod 108 can move inward to drive the arc-shaped clamping plate 112 to move in opposite directions, thereby clamping and fixing the placed hydrogen cylinder. During the clamping process, the elastic force of the clamping spring 111 can provide buffer for the arc-shaped clamping plate 112 to avoid excessive clamping force that could damage the hydrogen cylinder.

[0029] The top surface of the transport box body 1 is provided with a pressure relief groove 201. A pressure relief support 202 is fixedly connected to the top of the inner wall of the transport box body 1, and the pressure relief support 202 is located directly below the pressure relief groove 201. A pressure relief spring 203 is fixedly connected to the top surface of the pressure relief support 202, and a sealing plug 204 is fixedly connected to the end of the pressure relief spring 203. When the internal hydrogen cylinder leaks, the gas pressure inside the transport box will increase. Under high pressure, the gas pressure will overcome the elastic force of the pressure relief spring 203 and push the sealing plug 204 upward, thereby quickly releasing the gas through the pressure relief groove 201. When the gas pressure inside the transport box decreases, the elastic force of the pressure relief spring 203 will pull the sealing plug 204 downward to block the pressure relief groove 201 and reduce the amount of gas leakage.

[0030] The top surface of the transport container body 1 is provided with a pressure relief chamber 205. Inside the pressure relief chamber 205, there is a contact switch 206, which is located directly above the sealing plug 204. The top surface of the pressure relief chamber 205 is provided with an alarm 207, which is electrically connected to the contact switch 206. The pressure relief chamber 205 has a pressure relief through hole 208 and a recovery chamber 209. When the pressure inside the transport container pushes the sealing plug 204 upward, the sealing plug 204 will squeeze the contact switch 206, thereby triggering the alarm 207 to warn the staff that the hydrogen cylinder is leaking. This allows for timely inspection and maintenance of the hydrogen cylinder. The gas released through the pressure relief groove 201 enters the recovery chamber 209 through the pressure relief through hole 208 for collection, preventing hydrogen from directly leaking into the environment.

[0031] A sealing ring 501 is provided on the bottom surface of the sealing box cover 5, and a buffer limit seat 502 is provided on the bottom surface of the sealing box cover 5. A limit groove 503 is opened on the bottom surface of the buffer limit seat 502. The sealing ring 501 increases the sealing performance of the device and prevents hydrogen leakage. After the sealing box cover 5 is closed and locked to the transport box, the top of the hydrogen cylinder is inserted into the limit groove 503. During the transportation of the hydrogen cylinder, the buffer limit seat 502 buffers and limits the top of the hydrogen cylinder to prevent the hydrogen cylinder from shaking in the transport box.

[0032] Working principle: According to Figures 1-5 As shown, during operation, the external anti-collision reinforcement plate 4 installed on the outer surface of the transport box body 1 can increase the strength of the transport box body 1, resist external impacts and compression, and prevent sharp objects from piercing the box body. The aerogel insulation layer 2 installed inside the transport box body 1 can enhance the insulation effect and prevent the external high temperature or low temperature environment from affecting the hydrogen cylinder.

[0033] The bottom of the hydrogen cylinder is protected by the rubber base 103. After the hydrogen cylinder is placed in the rubber base 103, the weight of the hydrogen cylinder itself will push the support plate 102 downward, compressing the buffer spring 101, thereby using the elastic force of the buffer spring 101 to provide support for the support plate 102.

[0034] During the downward movement of the support base plate 102, the first connecting rod 107, which is rotatably connected on both sides, pushes the support rod 106 to slide outward in the limiting slide groove 105. When the support rod 106 pushes the bottom end of the second connecting rod 108 to slide outward, the second connecting rod 108 rotates around the fixed seat 109, thereby allowing the top ends of the two sets of second connecting rods 108 to move inward, which in turn pushes the two sets of arc-shaped clamping plates 112 to move towards each other, clamping and fixing the placed hydrogen cylinder. During the clamping process, the elastic force of the clamping spring 111 provides a buffer for the arc-shaped clamping plate 112 to avoid excessive clamping force that could damage the hydrogen cylinder.

[0035] After the hydrogen cylinder is installed and placed, the sealing box cover 5 is closed and locked to the transport box, so that the top of the hydrogen cylinder is inserted into the limiting groove 503. During the transportation of the hydrogen cylinder, the top of the hydrogen cylinder is buffered and limited by the buffer limiting seat 502 to prevent the hydrogen cylinder from shaking in the transport box.

[0036] When the internal hydrogen cylinder leaks, the pressure inside the transport box increases. Under high pressure, the gas inside the transport box overcomes the elastic force of the pressure relief spring 203, pushing the sealing plug 204 upward and opening the pressure relief groove 201. This allows the gas to be released quickly through the pressure relief groove 201. When the sealing plug 204 moves upward, it squeezes the contact switch 206, triggering the alarm 207 to alert staff that the hydrogen cylinder is leaking. This facilitates timely inspection and maintenance of the hydrogen cylinder. The gas released through the pressure relief groove 201 enters the recovery chamber 209 through the pressure relief through hole 208 for collection, preventing hydrogen from leaking directly into the environment. When the pressure inside the transport box decreases, the elastic force of the pressure relief spring 203 pulls the sealing plug 204 downward, blocking the pressure relief groove 201 and reducing the amount of gas leakage.

[0037] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] 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 hydrogen energy hydrogen cylinder explosion-proof transport box, comprising a transport box body (1), characterized in that: The inside of the transport box body (1) is provided with an aerogel thermal insulation layer (2), the bottom surface of the transport box body (1) is welded and fixed with anti-skid supporting feet (3), and the anti-skid supporting feet (3) are distributed equidistantly and staggered on the transport box body (1), the outer surface of the transport box body (1) is welded and fixed with an outer anti-collision reinforcing plate (4), and the top surface of the transport box body (1) is rotationally connected with a sealing box cover (5).

2. The explosion-proof transport case for hydrogen energy hydrogen cylinders according to claim 1, characterized in that: The inner wall bottom of the transport box body (1) is fixedly connected with a buffer spring (101) equidistantly and staggered, the end of the buffer spring (101) is fixedly connected with a supporting bottom plate (102), and the top surface of the supporting bottom plate (102) is fixedly installed with a rubber base (103).

3. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 1, characterized in that: The inner wall bottom of the transport box body (1) is symmetrically welded and fixed with a limiting support seat (104), the side surface of the limiting support seat (104) is symmetrically provided with a limiting sliding groove (105), and the inner wall of the limiting sliding groove (105) is slidably connected with a supporting rod (106).

4. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 2, characterized in that: The side surface of the supporting bottom plate (102) is rotationally connected with a first connecting rod (107), the end of the first connecting rod (107) is rotationally connected with the supporting rod (106), the outer side of the supporting rod (106) is rotationally connected with a second connecting rod (108), the inner wall of the transport box body (1) is fixedly connected with a fixed seat (109), and the fixed seat (109) is rotationally connected with the center position of the second connecting rod (108).

5. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 4, characterized in that: The top end side of the second connecting rod (108) is fixedly connected with a telescopic rod (110), and the telescopic rod (110) is equidistantly and symmetrically distributed on the second connecting rod (108), the outer side of the telescopic rod (110) is slidably sleeved with a clamping spring (111), and the end of the telescopic rod (110) is fixedly connected with an arc-shaped clamping plate (112).

6. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 1, characterized in that: The top surface of the transport box body (1) is provided with a pressure relief groove (201), the inner wall top of the transport box body (1) is fixedly connected with a pressure relief support (202), and the pressure relief support (202) is arranged directly below the pressure relief groove (201), the top surface of the pressure relief support (202) is fixedly connected with a pressure relief spring (203), and the end of the pressure relief spring (203) is fixedly connected with a sealing plug (204).

7. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 6, characterized in that: The top surface of the transport box body (1) is provided with a pressure relief bin (205), the inside of the pressure relief bin (205) is provided with a contact switch (206), the contact switch (206) is arranged directly above the sealing plug (204), the top surface of the pressure relief bin (205) is provided with a warning device (207), the warning device (207) is electrically connected with the contact switch (206), the inside of the pressure relief bin (205) is provided with a pressure relief through hole (208), and the inside of the pressure relief bin (205) is provided with a recovery cavity (209).

8. The explosion-proof transport case for hydrogen energy hydrogen cylinders of claim 1, characterized in that: The bottom surface of the sealing box cover (5) is provided with a sealing ring (501), the bottom surface of the sealing box cover (5) is provided with a buffer limiting seat (502), and the bottom surface of the buffer limiting seat (502) is provided with a limiting groove (503).

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