Hydrogen evacuating and desorbing device

Abstract

The utility model discloses a hydrogen evacuating and desorbing device, which relates to the technical field of hydrogen evacuating and desorbing, and comprises a box body and a cover plate, the top of the box body is movably connected with the cover plate, the cover plate is internally provided with a through hole, the inside of the through hole is fixedly connected with a sealing ring, and the top of the cover plate is fixedly connected with an anti-backfire mechanism. Sealing silica gel is fixedly connected into the cover plate, the two sets of penetrating holes are symmetrically distributed, the outer diameter of the sealing ring is consistent with that of the sealing pipe, and the sealing ring prevents oxygen from entering the box body. Compared with an existing common hydrogen evacuating and desorbing device, the hydrogen evacuating and desorbing device has the advantages that hydrogen and oxygen are conveyed to different desorbing bottles through different sealing pipes and then output through the output pipe, reaction between the hydrogen and the oxygen is avoided, the device is simple in structure, workers cannot operate the device in dangerous places, accidents are prevented from occurring and spreading, and the device is suitable for popularization and application. The density of the sealing ring is large, gas leakage is avoided, and the sealing performance of oxygen and hydrogen in the transportation process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen evacuation and desorption, in particular to a hydrogen evacuation and desorption device. Background Art

[0002] Hydrogen is a colorless and odorless gas that is highly flammable and insoluble in water. It is a green and clean energy source and is usually produced by water electrolysis, petroleum cracking and the chlor-alkali method. Hydrogen needs to be purified during the production process. Since hydrogen is a flammable and explosive item, if the leaked hydrogen encounters static electricity, sparks, etc., it may cause safety accidents such as fire and explosion. If the amount of hydrogen leakage is large, excessive hydrogen may be inhaled by people around, which may cause anesthesia, posing a threat to production safety and the health of workers. During the purification operation, a buffer tank will be installed on one side of the purification pipeline.

[0003] For example, a hydrogen adsorption and desorption device with application number CN202022647967.2 includes a raw gas pipe, which is connected to an adsorbent module, and the adsorbent module is connected to a hydrogen absorption module through a connecting pipe. A palladium film substrate is provided inside the hydrogen absorption module, and the palladium film substrate is made of a porous material. The palladium film substrate is covered with a palladium film. The palladium film substrate and the palladium film divide the interior of the hydrogen absorption module into an exhaust gas chamber and a hydrogen chamber. The exhaust gas chamber is connected to an exhaust gas pipe, and a second air pump is installed on the exhaust gas pipe. The hydrogen chamber is connected to a hydrogen collecting pipe, and a first air pump is installed on the hydrogen collecting pipe. However, the hydrogen and oxygen inside the hydrogen evacuation and desorption device may react, resulting in hydrogen flashback, releasing a large amount of energy, forming flames, and posing a great threat to personnel and equipment. Therefore, in view of this, the existing structural deficiencies are studied and improved, and a hydrogen evacuation and desorption device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogen evacuation desorption device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a hydrogen evacuation and desorption device, comprising a box body and a cover plate, the top of the box body is movably connected to the cover plate, and a penetration hole is provided inside the cover plate, a sealing ring is fixedly connected inside the penetration hole, and an anti-backfire mechanism is fixedly connected to the top of the cover plate.

[0006] Preferably, the anti-backfire mechanism comprises a desorption bottle fixedly connected to the top position of the cover plate, and a conduit is fixedly connected to one side of the desorption bottle, and an output pipe is arranged on one side of the conduit.

[0007] Preferably, one end of the conduit is fixedly connected to a sealing tube, and one end of the sealing tube is fixedly connected to a separation bottle.

[0008] Preferably, the separator bottle is provided with positive and negative blocks inside, and a connecting block is fixedly connected to one side of the box body.

[0009] Preferably, a sealant is fixedly connected to the connection between the connection block and the box body, and an air collecting bag is arranged outside the output pipe.

[0010] Preferably, a detection head is fixedly connected to the top of the box, and an ammeter is fixedly connected to one side of the connection block.

[0011] Preferably, an oxygen collecting device is provided inside the box, and the internal structure of the oxygen collecting device is consistent with that of the hydrogen collecting device.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The sealing ring and anti-backfire mechanism and setting of the utility model can avoid hydrogen reflux combustion and prevent great threats to personnel and equipment. The hydrogen and oxygen inside the traditional desorption device may react, resulting in hydrogen backfire to release a large amount of energy and form flames. The anti-backfire mechanism is added to the new device. Hydrogen and oxygen are respectively transported to different desorption bottles through different sealing pipes and then output through the output pipe to avoid hydrogen and oxygen from reacting. The device has a simple structure and will not cause workers to operate in dangerous places, preventing accidents from occurring and spreading. The density of the sealing ring is relatively high to avoid gas leakage and ensure the sealing of oxygen and hydrogen during transportation;

[0014] 2. The utility model has a detection head and an ammeter. When the air collecting belt continues to absorb hydrogen, the detection head can detect whether the hydrogen is leaked, so as to avoid a large amount of hydrogen in a closed environment that may dilute the oxygen in the air, which may cause hypoxia in the human body and produce irreversible harm. The ammeter can be used as a circuit safety protection tool. When the current in the circuit exceeds the set safety range, the ammeter can automatically cut off the circuit to avoid circuit failure and device damage caused by excessive current. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the internal structure of the main body of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the main body of the utility model;

[0017] Figure 3 It is a schematic structural diagram of the anti-backfire mechanism 5 of the utility model;

[0018] Figure 4 It is a schematic diagram of the internal structure of the box 1 of the utility model.

[0019] In the figure: 1. Box body; 2. Cover plate; 3. Penetration hole; 4. Sealing ring; 5. Anti-backfire mechanism; 501. Desorption bottle; 502. Conduit; 503. Output pipe; 6. Sealing tube; 7. Separation bottle; 8. Positive and negative block; 9. Connecting block; 10. Sealant; 11. Air collection bag; 12. Detection head; 13. Ammeter; 14. Oxygen collection device. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-Figure 3 As shown, a hydrogen evacuation and desorption device comprises a box body 1 and a cover plate 2, the top of the box body 1 is movably connected with the cover plate 2, and the cover plate 2 is provided with a penetration hole 3 inside, the inside of the penetration hole 3 is fixedly connected with a sealing ring 4, and the top of the cover plate 2 is fixedly connected with an anti-backfire mechanism 5, the inside of the cover plate 2 is fixedly connected with sealing silica gel, two groups of penetration holes 3 are symmetrically distributed, the outer diameter of the sealing ring 4 is consistent with that of the sealing tube 6, and the sealing ring 4 prevents oxygen from entering the inside of the box body 1.

[0022] like Figure 3-Figure 4 As shown, the anti-backfire mechanism 5 includes a desorption bottle 501 fixedly connected to the top position of the cover plate 2, and a conduit 502 is fixedly connected to one side of the desorption bottle 501, and an output pipe 503 is arranged on one side of the conduit 502, two groups of desorption bottles 501 are arranged on the left and right sides of the top of the cover plate 2, and the top of the desorption bottle 501 on the right is also provided with a conduit 502 and an output pipe 503, and the oxygen and hydrogen inside the box body 1 are respectively transported to different desorption bottles 501 through the sealing tube 6 to prevent the hydrogen and oxygen from reacting to form an open flame.

[0023] Furthermore, one end of the conduit 502 is fixedly connected to a sealing tube 6, and one end of the sealing tube 6 is fixedly connected to a separating bottle 7, the interior of the separating bottle 7 is provided with positive and negative blocks 8, and one side of the box body 1 is fixedly connected to a connecting block 9, and the bottom of the separating bottle 7 is hollow, which can completely cover the positive and negative blocks 8. After the connecting block 9 is connected to the ammeter 13, it provides power for the positive and negative blocks 8.

[0024] Furthermore, a sealant 10 is fixedly connected to the connection between the connecting block 9 and the box body 1, and an air collecting bag 11 is arranged outside the output pipe 503. The sealant 10 prevents the gap of the box body 1 from being loosely connected, thereby avoiding the penetration of pure water and sodium hydroxide inside the box body 1. The two groups of air collecting bags 11 can collect oxygen and hydrogen respectively.

[0025] Furthermore, a detection head 12 is fixedly connected to the top of the box body 1, and an ammeter 13 is fixedly connected to one side of the connecting block 9. An oxygen collecting device 14 is provided inside the box body 1, and the internal structure of the oxygen collecting device 14 is consistent with that of the hydrogen collecting device. The ammeter 13 can detect the current of the positive and negative blocks 8, and at the same time can adjust the appropriate current to maintain the conductivity of the water.

[0026] Working principle: When using the hydrogen vacuum desorption device, first place sodium hydroxide and pure water inside the box 1, connect the cover plate 2 to the box 1, and connect the conduit 502 on one side of the desorption bottle 501 inside the anti-backfire mechanism 5 to the sealing tube 6 through the sealing ring 4 inside the penetration hole 3. The separation bottle 7 at one end of the sealing tube 6 covers the positive and negative blocks 8. The connecting block 9 passes the power supply to the positive and negative blocks 8 through the ammeter 13. After conducting electricity, sodium hydroxide and pure water decompose into hydrogen and oxygen. Hydrogen is transported to the hydrogen collection bag 11 through the output pipe 503 on one side, and oxygen is transported to the oxygen collection device 14 through the output pipe 503 on the other side. The detection head 12 can detect whether there is oxygen and hydrogen leakage to ensure the safety of the device during operation. This is the working principle of the hydrogen vacuum desorption device.

Claims

1. A hydrogen evacuation desorption device, comprising a housing (1) and a cover plate (2), characterized in that: The top of the box body (1) is movably connected to a cover plate (2), and a penetration hole (3) is provided inside the cover plate (2), a sealing ring (4) is fixedly connected inside the penetration hole (3), and a backfire prevention mechanism (5) is fixedly connected to the top of the cover plate (2).

2. A hydrogen evacuation and desorption device according to claim 1, characterized in that: The anti-flashback mechanism (5) comprises a desorption bottle (501) fixedly connected to the top of the cover plate (2), a conduit (502) is fixedly connected to one side of the desorption bottle (501), and an output pipe (503) is provided on one side of the conduit (502).

3. A hydrogen evacuation desorption device according to claim 2, characterized in that: One end of the conduit (502) is fixedly connected to a sealing tube (6), and one end of the sealing tube (6) is fixedly connected to a separating bottle (7).

4. A hydrogen evacuation and desorption device according to claim 3, characterized in that: The interior of the separation bottle (7) is provided with positive and negative blocks (8), and one side of the box body (1) is fixedly connected with a connection block (9).

5. A hydrogen evacuation and desorption device according to claim 4, characterized in that: The connection between the connection block (9) and the box body (1) is fixedly connected with a sealant (10), and an air collecting bag (11) is arranged outside the output pipe (503).

6. A hydrogen evacuation desorption device according to claim 1, characterized in that: A detection head (12) is fixedly connected to the top of the box (1), and an ammeter (13) is fixedly connected to one side of the connection block (9).

7. A hydrogen evacuation and desorption device according to claim 1, characterized in that: An oxygen collecting device (14) is arranged inside the box (1), and the internal structure of the oxygen collecting device (14) is consistent with that of the hydrogen collecting device.

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