Hydrogen dehumidification and purification device for hydrogen production

Abstract

The utility model belongs to the technical field of hydrogen dehumidification, in particular relates to a hydrogen dehumidification and purification device for hydrogen production, and provides the following scheme aiming at the problem of lower safety caused by the explosion behavior of oxygen and hydrogen due to temperature rise when the conventional equipment is dried and dehumidified by filling circulating heating liquid into a heating coil. The device comprises a neutralization box, a dehumidification structure is arranged at the top of the neutralization box, the dehumidification structure comprises two dehumidification boxes symmetrically welded to the two ends of the top of the neutralization box, a plurality of air holes are formed in the bottom ends of the two dehumidification boxes at equal intervals in a penetrating mode, and first filter plates are installed at the bottom ends of the interiors of the two dehumidification boxes through screws; the tops of the two first filter plates are provided with second filter plates through screws, and the tops of the two second filter plates are provided with third filter plates through screws. The four filter plates made of particles made of different materials are used for filtering moisture in hydrogen, so that comprehensive and large-range dehumidification behaviors are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen dehumidification, in particular to a hydrogen dehumidification and purification device for hydrogen production. Background Technique

[0002] Hydrogen production by electrolyzing water is a relatively convenient method for producing hydrogen. Direct current is passed through the electrolyte in the electrolytic cell, and water molecules undergo electrochemical reactions on the positive and negative electrodes respectively, decomposing into oxygen and hydrogen. Oxygen and hydrogen are collected separately to obtain the corresponding products. Since a certain amount of oxygen will be mixed into hydrogen during the electrolysis process, and at the same time, water vapor during the electrolysis process will also be mixed into hydrogen, hydrogen contains impurities such as moisture and oxygen, and deoxidation and dehumidification treatments are required.

[0003] After retrieval, the patent with the publication number CN218358393U discloses a hydrogen dehumidification and purification device for hydrogen production, including a deoxidizer, a dehumidification box, a desiccant box, and an adsorption box connected in sequence. A gas distribution plate and a heating coil are installed inside the tower body. The gas distribution plate is covered with a number of gas distribution holes. A catalyst coil is connected below the heating coil. A number of air holes are provided on the lower surface of the catalyst coil. The catalyst coil is filled with deoxidation catalyst particles. The heating coil is filled with circulating heating liquid. A cooling coil is installed inside the dehumidification box. The cooling coil is filled with circulating cooling water. The desiccant box is filled with desiccant, and the adsorption box is filled with activated carbon. The hydrogen dehumidification and purification device for hydrogen production of the utility model can effectively remove moisture, oxygen, etc. in hydrogen during the hydrogen production process. The catalytic efficiency of the deoxidation catalyst is high, the reaction of oxygen in hydrogen is more thorough, and moisture and other solid particle substances can be effectively separated.

[0004] The existing equipment dries and dehumidifies by filling the heating coil with circulating heating liquid, but oxygen and hydrogen will explode due to temperature rise, so there is a problem of low safety. Therefore, we propose a hydrogen dehumidification and purification device for hydrogen production to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the drawback of explosion caused by heating and drying, and to propose a hydrogen dehumidification and purification device for hydrogen production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A hydrogen dehumidification and purification device for hydrogen production, including a neutralization box, and a dehumidification structure is arranged at the top of the neutralization box;

[0007] The dehumidification structure includes two dehumidification boxes symmetrically welded to both ends of the top of the neutralization box. A number of air holes are evenly and perforated through the bottom ends of the two dehumidification boxes. Filter plates one are installed at the inner bottom ends of the two dehumidification boxes by screws. Filter plates two are installed on the tops of the two filter plates one by screws. Filter plates three are installed on the tops of the two filter plates two by screws. Filter plates four are installed on the tops of the two filter plates three by screws. Humidity detectors are installed at the inner top ends of the two dehumidification boxes by screws. A return pipe is inserted into the rear ends of the two humidity detectors through a tee pipe. A mixed gas inlet is welded to one end of the neutralization box. The other ends of the two return pipes are inserted into the mixed gas inlet.

[0008] Preferably, a feeding structure is arranged on the top of the neutralization box. The feeding structure includes a neutralization material box welded to the top of the neutralization box and located between the two dehumidification boxes.

[0009] Preferably, a discharge port is welded to the bottom end of the neutralization material box. A wave wheel rod is inserted into the discharge port through a supporting plate welded inside the discharge port.

[0010] Preferably, the top end of the wave wheel rod extends through the top of the neutralization material box and is inserted with a motor.

[0011] Preferably, the bottom end of the motor is installed on the top of the neutralization material box by bolts.

[0012] Preferably, a feed port is opened at the front end of the top of the neutralization material box.

[0013] Preferably, hydrogen gas outlets are welded to the tops of the two dehumidification boxes. A waste outlet is opened at one end of the neutralization box away from the mixed gas inlet. A waste outlet cover is hermetically installed inside the waste outlet.

[0014] Preferably, the two filter plates one are made of calcium chloride particles, the two filter plates two are made of montmorillonite particles, the two filter plates three are made of silica gel particles, and the two filter plates four are made of magnesium chloride particles.

[0015] In the present utility model, the hydrogen dehumidification and purification device for hydrogen production:

[0016] 1. In the present utility model, by using two filter plates one made of calcium chloride particles, two filter plates two made of montmorillonite particles, two filter plates three made of silica gel particles, and two filter plates four made of magnesium chloride particles to filter the moisture in hydrogen gas, a comprehensive and large-scale dehumidification behavior is achieved.

[0017] 2. The utility model detects the moisture content inside hydrogen by setting humidity detectors and return pipes at the tops of two dehumidification boxes. When the moisture content does not meet the standard, it is transported back to the mixed gas inlet through the return pipe for secondary dehumidification. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic structural diagram of a hydrogen dehumidification and purification device for hydrogen production proposed by the utility model;

[0019] Figure 2 FIG. 2 is a schematic structural diagram of an internal part of a hydrogen dehumidification and purification device for hydrogen production proposed by the utility model;

[0020] Figure 3 FIG. 3 is a schematic structural diagram of part A of a hydrogen dehumidification and purification device for hydrogen production proposed by the utility model.

[0021] In the figures: 1, neutralization box; 2, dehumidification structure; 201, dehumidification box; 202, air holes; 203, filter plate I; 204, filter plate II; 205, filter plate III; 206, filter plate IV; 3, humidity detector; 4, return pipe; 5, mixed gas inlet; 6, feeding structure; 601, neutralization material box; 602, discharge port; 603, wave wheel rod; 604, motor; 605, feeding port; 7, hydrogen outlet; 8, waste outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Refer to Figures 1-3 , a hydrogen dehumidification and purification device for hydrogen production, including a neutralization box 1, and a dehumidification structure 2 is arranged at the top of the neutralization box 1;

[0024] The dehumidification structure 2 includes two dehumidification boxes 201 symmetrically welded at both ends of the top of the neutralization box 1. A plurality of air holes 202 are evenly penetrated and opened at the bottom ends of the two dehumidification boxes 201. Filter plates I 203 are installed at the inner bottom ends of the two dehumidification boxes 201 by screws. Filter plates II 204 are installed at the tops of the two filter plates I 203 by screws. Filter plates III 205 are installed at the tops of the two filter plates II 204 by screws. Filter plates IV 206 are installed at the tops of the two filter plates III 205 by screws. Humidity detectors 3 are installed at the inner top ends of the two dehumidification boxes 201 by screws. Return pipes 4 are inserted into the back ends of the two humidity detectors 3 through three-way pipes. A mixed gas inlet 5 is welded at one end of the neutralization box 1. The other ends of the two return pipes 4 are inserted into the mixed gas inlet 5.

[0025] In this embodiment, a feeding structure 6 is provided at the top of the neutralization tank 1. The feeding structure 6 includes a neutralization material tank 601 welded to the top of the neutralization tank 1 and located between two dehumidification tanks 201.

[0026] With the above solution, by providing a feeding structure 6 at the top of the neutralization tank 1, and the feeding structure 6 includes a neutralization material tank 601 welded to the top of the neutralization tank 1 and located between two dehumidification tanks 201, copper and manganese particles that can neutralize oxygen are added inside the neutralization material tank 601.

[0027] In this embodiment, a discharge port 602 is welded to the bottom end of the neutralization material tank 601, and a wave wheel rod 603 is inserted into the discharge port 602 through a supporting plate welded inside the discharge port 602 in a rolling manner.

[0028] With the above solution, by welding a discharge port 602 to the bottom end of the neutralization material tank 601, and a wave wheel rod 603 is inserted into the discharge port 602 through a supporting plate welded inside the discharge port 602 in a rolling manner, the copper and manganese particles are evenly discharged by rotating the wave wheel rod 603, promoting the behavior of neutralizing with oxygen.

[0029] In this embodiment, the top of the wave wheel rod 603 extends through the top of the neutralization material tank 601 and is inserted with a motor 604.

[0030] With the above solution, by the top of the wave wheel rod 603 extending through the top of the neutralization material tank 601 and being inserted with a motor 604, the wave wheel rod 603 is controlled by the motor 604 to rotate at a constant speed, effectively promoting the discharging behavior.

[0031] In this embodiment, the bottom end of the motor 604 is installed on the top of the neutralization material tank 601 through bolts.

[0032] With the above solution, by the bottom end of the motor 604 being installed on the top of the neutralization material tank 601 through bolts, the motor 604 is stably installed on the top of the neutralization material tank 601, ensuring the continuous and stable output of power of the motor 604.

[0033] In this embodiment, a feed inlet 605 is provided at the front end of the top of the neutralization material tank 601.

[0034] With the above solution, by providing a feed inlet 605 at the front end of the top of the neutralization material tank 601, the purpose of adding neutralization materials is achieved.

[0035] In this embodiment, hydrogen outlets 7 are welded to the tops of both dehumidification tanks 201, and a waste outlet 8 is provided at one end of the neutralization tank 1 away from the mixed gas inlet 5. A waste outlet cover is hermetically installed inside the waste outlet 8.

[0036] Adopting the above solution, hydrogen outlets 7 are welded to the tops of both dehumidification boxes 201, a waste outlet 8 is provided at one end of the neutralization box 1 away from the mixed gas inlet 5, and a waste outlet cover is hermetically installed inside the waste outlet 8, so as to discharge hydrogen through the hydrogen outlet 7 and discharge copper oxide or manganese oxide waste through the waste outlet 8.

[0037] In this embodiment, both of the first filter plates 203 are made of calcium chloride particles, both of the second filter plates 204 are made of montmorillonite particles, both of the third filter plates 205 are made of silica gel particles, and both of the fourth filter plates 206 are made of magnesium chloride particles.

[0038] Adopting the above solution, by making both of the first filter plates 203 of calcium chloride particles, both of the second filter plates 204 of montmorillonite particles, both of the third filter plates 205 of silica gel particles, and both of the fourth filter plates 206 of magnesium chloride particles, a layer-by-layer filtering behavior is realized to comprehensively remove internal moisture.

[0039] In the present utility model, when in use, gas is added through the mixed gas inlet 5, the motor 604 controls the rotation of the wave rod 603 to add copper particles or manganese particles inside the neutralization material box 601 into the neutralization box 1. The copper particles or manganese particles neutralize with oxygen in the gas to form copper oxide or manganese oxide. Subsequently, the gas enters the dehumidification box 201. The first filter plates 203 made of two calcium chloride particles, the second filter plates 204 made of two montmorillonite particles, the third filter plates 205 made of two silica gel particles, and the fourth filter plates 206 made of two magnesium chloride particles are used to filter moisture in the hydrogen, achieving a comprehensive and large-scale dehumidification behavior. Two humidity detectors 3 detect the moisture content inside the hydrogen. When the standard is not met, it is transported back to the mixed gas inlet 5 through the return pipe 4 for secondary dehumidification behavior.

[0040] The above has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydrogen dehumidification and purification device for hydrogen production, comprising a neutralization tank (1), characterized in that, A dehumidification structure (2) is provided at the top of the neutralization box (1); The dehumidification structure (2) includes two dehumidification boxes (201) symmetrically welded to both ends of the top of the neutralization box (1). A number of air holes (202) are evenly and perforated through the bottom ends of the two dehumidification boxes (201). Filter plates one (203) are installed at the inner bottom ends of the two dehumidification boxes (201) by screws. Filter plates two (204) are installed at the tops of the two filter plates one (203) by screws. Filter plates three (205) are installed at the tops of the two filter plates two (204) by screws. Filter plates four (206) are installed at the tops of the two filter plates three (205) by screws. Humidity detectors (3) are installed at the inner top ends of the two dehumidification boxes (201) by screws. A reflux pipe (4) is inserted into the rear ends of the two humidity detectors (3) through a tee pipe. A mixed gas inlet (5) is welded to one end of the neutralization box (1). The other ends of the two reflux pipes (4) are inserted into the mixed gas inlet (5).

2. The hydrogen dehumidification and purification device for hydrogen production according to claim 1, characterized in that, A feeding structure (6) is provided at the top of the neutralization box (1). The feeding structure (6) includes a neutralization material box (601) welded to the top of the neutralization box (1) and located between the two dehumidification boxes (201).

3. The hydrogen dehumidification and purification device for hydrogen production according to claim 2, characterized in that, A discharge port (602) is welded to the bottom end of the neutralization material box (601). A wave wheel rod (603) is inserted into the discharge port (602) in a rolling manner through a supporting plate welded inside.

4. A hydrogen dehumidification and purification device for hydrogen production according to claim 3, characterized in that, The top of the wave wheel rod (603) extends through the top of the neutralization material box (601) and is inserted with a motor (604).

5. The hydrogen dehumidification and purification device for hydrogen production according to claim 4, characterized in that, The bottom end of the motor (604) is installed on the top of the neutralization material box (601) by bolts.

6. The hydrogen dehumidification and purification device for hydrogen production according to claim 2, characterized in that, A feed port (605) is opened at the front end of the top of the neutralization material box (601).

7. A hydrogen dehumidification and purification device for hydrogen production according to claim 1, characterized in that, Hydrogen outlets (7) are welded to the tops of the two dehumidification boxes (201). A waste outlet (8) is opened at one end of the neutralization box (1) away from the mixed gas inlet (5). A waste outlet cover is hermetically installed inside the waste outlet (8).

8. A hydrogen dehumidification and purification device for hydrogen production according to claim 1, characterized in that, Both of the two filter plates one (203) are made of calcium chloride particles. Both of the two filter plates two (204) are made of montmorillonite particles. Both of the two filter plates three (205) are made of silica gel particles. Both of the two filter plates four (206) are made of magnesium chloride particles.

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