Device for removing metal particles in hydrogen production electrolyte

Abstract

The utility model relates to the technical field of electrolytic hydrogen production, in particular to a device for removing metal particles in hydrogen production electrolyte. The device comprises a cylinder body (1), a cover plate (2), a magnetic bar (3), a liquid inlet pipe (6), a liquid outlet pipe (7) and a sealing gasket (8), a liquid inlet pipe (6) and a liquid outlet pipe (7) are respectively arranged on two sides of the cylinder body (1), and a cover plate (2) is arranged at the top of the cylinder body (1); and a plurality of magnetic bars (3) are arranged on the cylinder body (1) side of the cover plate (2). The device has the advantages that the magnetic bar in the device adsorbs ferromagnetic metal particles and magnetic impurities in alkali liquor, and the filter basket filters non-metal particle impurities, so that impurity particles are prevented from entering an electrolytic bath, and a diaphragm of the electrolytic bath is prevented from being damaged; differential pressure gauges are arranged at the inlet and outlet of the device to judge the impurity content in the device and the magnetic attraction capacity of the magnetic bar; adsorbed ferromagnetic metal particles and filtered impurities can be removed by a cleaning device.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic hydrogen production technology, specifically to a device for removing metal particles from hydrogen production electrolyte. Background Technology

[0002] The improved Siemens process for producing polycrystalline silicon involves placing silicon cores in a reaction vessel beforehand. Using SiHCl3 and H2 as raw materials, a mixture of SiHCl3 and H2 entering the reduction furnace undergoes a vapor-phase deposition reaction on the surface of the silicon cores at a high temperature of 1100-1100℃, causing the silicon cores to continuously thicken into silicon rods. Simultaneously, byproducts such as SiCl4, SiH2Cl2, H2, and high-boiling-point substances are generated. SiCl4, SiH2Cl2, and high-boiling-point substances are then converted into SiHCl3, achieving a closed-loop process for polycrystalline silicon production.

[0003] The hydrogen production process utilizes an alkaline water electrolyzer (AE) to electrolyze alkaline water. In the electrolyzer, direct current is applied to electrodes immersed in an electrolyte solution. Under the influence of the direct current, water molecules in the electrolyte solution decompose into hydrogen ions and hydroxide ions. At the anode, hydroxide ions lose electrons to produce oxygen, while at the cathode, hydrogen ions gain electrons to produce hydrogen gas. During operation, if the plating on the electrodes is defective or during prolonged operation, the electrodes may be corroded by the alkaline solution, causing some metal to detach. Simultaneously, the pipes may also be corroded by the alkaline solution, resulting in a small amount of metal residue mixed in the electrolyte.

[0004] During the operation of a hydrogen electrolyzer, metal particles can enter the cell along with the alkaline solution. These impurities can clog the electrode diaphragm or damage it, leading to cross-contamination between the hydrogen and oxygen sides and resulting in substandard hydrogen purity. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device that is simple in structure and effectively removes metal particles from hydrogen production electrolyte.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An apparatus for removing metal particles from hydrogen production electrolyte, the apparatus comprising: a cylinder 1, a cover plate 2, a magnetic rod 3, an inlet pipe 6, an outlet pipe 7, and a sealing gasket 8;

[0008] The cylinder 1 is provided with an inlet pipe 6 and an outlet pipe 7 on both sides, and a cover plate 2 is provided on the top of the cylinder 1;

[0009] Several magnetic rods 3 are installed on one side of the cylinder 1 of the cover plate 2.

[0010] Furthermore, a filter basket 4 is provided inside the cylindrical body 1;

[0011] The filter basket 4 is a barrel shape with an open top, and a flange 14 is provided on the outer side of the top of the filter basket 4; the flange 14 cooperates with the retaining ring 15 on the inner side of the cylinder 1.

[0012] Furthermore, the retaining ring 15 is circumferentially positioned below the inlet pipe 6 and above the outlet pipe 7.

[0013] The liquid inlet pipe 6 is inserted into the filter basket 4.

[0014] Furthermore, the magnetic rod 3 is disposed inside the filter basket 4.

[0015] Furthermore, a sealing gasket 8 is provided between the cylinder 1 and the cover plate 2.

[0016] Furthermore, the cylinder 1 and the cover plate 2 are connected by bolts 12 and matching nuts 13.

[0017] Furthermore, the device also includes a differential pressure gauge 9;

[0018] One end of the differential pressure gauge 9 is connected to the inside of the cylinder 1 via the cylinder pressure guide pipe 10, and the other end is connected to the inside of the liquid outlet pipe 7 via the liquid outlet pressure guide pipe 11.

[0019] Furthermore, the magnetic rod 3 is connected to the cover plate 2 via threads 16.

[0020] Furthermore, the device also includes a support frame 5;

[0021] The support frame 5 includes several longitudinal tie rods 51 and a distribution plate 52. One end of the tie rod 51 is fixed to the cover plate 2, and the other end is connected to the distribution plate 52.

[0022] Furthermore, the distribution plate 52 has openings corresponding to the distribution positions of the magnetic rods 3, and the ends of the magnetic rods 3 pass through the openings.

[0023] This invention provides a device for removing metal particles from hydrogen production electrolyte. The cylindrical body serves as the mounting carrier for the filter basket. A retaining ring is installed on the inner wall of the cylindrical body, which engages with the flange on the outer edge of the top of the filter basket. An inlet pipe and an outlet pipe are respectively provided on opposite sides of the cylindrical body, and the inlet and outlet pipes are connected to an alkaline solution pipeline via flanges. A cover plate is bolted to the top of the cylindrical body, and a sealing gasket is used to seal between the cylindrical body and the cover plate. A threaded hole for mounting a magnetic rod is provided on the inner side of the cover plate (one side of the cylindrical body). The magnetic rod uses a high-performance permanent magnet (such as a neodymium iron boron permanent magnet) to adsorb tiny ferromagnetic metal particles or debris, as well as other magnetized tiny impurity particles. One end of the magnetic rod has a thread that matches the threaded hole on the cover plate, allowing it to be mounted on the threaded hole on the inner side of the cover plate. The filter basket is used to filter larger particulate impurities or non-magnetic impurities and temporarily stores the filtered large particulate impurities. The support frame consists of four tie rods and a distribution plate, fixed to the cover plate at the top. The distribution plate has corresponding holes at the magnetic rod locations for fixing and limiting the magnetic rods, ensuring smooth flow of the alkali solution through the device, reducing dead zones and turbulence, and guaranteeing filtration efficiency. One end of the differential pressure gauge's pressure-conducting tube is inserted into the device through a hole in the cover plate to collect the inlet pressure; the other end is installed on the outlet pipe to collect the outlet pressure. This allows for real-time monitoring of the device's operating status. An increase in differential pressure indicates that the device needs cleaning or filter basket replacement. The differential pressure gauge can be remotely transmitted and equipped with a high differential pressure alarm. The signal can be transmitted to the central control room, triggering an audible and visual alarm when the differential pressure is too high, prompting the user to clean the device.

[0024] The device provided by this utility model has a multi-stage filtration structure. The first stage consists of magnetic rods evenly distributed inside the cylinder, which are used to adsorb tiny metal particles. The second stage of filtration is a filter basket, with an inlet pipe leading into the basket to filter large particles or non-magnetic substances, ensuring that impurities of different sizes can be effectively intercepted.

[0025] When using the device provided by this utility model, the alkaline solution containing impurities enters the filter basket through the inlet pipe and then passes through the magnetic rod. During the flow process, tiny ferromagnetic metals and magnetized impurities are adsorbed layer by layer by the magnetic rod, while the remaining larger impurities and non-magnetic impurities are intercepted by the filter basket and collected at the bottom of the filter basket. The clean alkaline solution after adsorption by the magnetic rod and filtration by the filter basket is output through the outlet pipe and sent to the electrolytic cell. Differential pressure gauges are installed at the inlet and outlet of the device. When the differential pressure increases, it indicates that there are many impurities accumulated inside the device, and cleaning should be carried out. During cleaning, open the cover plate on the top of the cylinder, remove the cover plate and the magnetic rod connected to the cover plate, and clean the metal particles adsorbed on the magnetic rod; remove the filter basket from the top and clean the impurities collected in the filter basket. After cleaning, first install the filter basket, then tighten the magnetic rod onto the cover plate and then install the cover plate.

[0026] The advantages of the device for removing metal particles from hydrogen production electrolyte provided by this utility model are as follows: the magnetic rod inside the device adsorbs ferromagnetic metal particles and magnetic impurities in the alkaline solution, and the filter basket filters non-metallic particulate impurities, preventing impurity particles from entering the electrolytic cell and avoiding damage to the electrolytic cell diaphragm; differential pressure gauges are installed at the inlet and outlet of the device to determine the impurity content inside the device and the magnetic attraction ability of the magnetic rod; the adsorbed ferromagnetic metal particles and the filtered impurities can be removed by a cleaning device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a device for removing metal particles from hydrogen production electrolyte provided by this utility model.

[0028] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle.

[0029] Figure 3 This is a schematic diagram of the internal structure of a device for removing metal particles from hydrogen production electrolyte provided by this utility model.

[0030] In the diagram: 1 is the cylinder, 2 is the cover plate, 3 is the magnetic rod, 4 is the filter basket, 5 is the support frame, 6 is the inlet pipe, 7 is the outlet pipe, 8 is the sealing gasket, 9 is the differential pressure gauge, 10 is the outlet pressure guide pipe, 11 is the cylinder pressure guide pipe, 12 is the bolt, 13 is the nut, 14 is the flange, 15 is the retaining ring, 16 is the thread, 51 is the tie rod, and 52 is the distribution plate. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the following embodiments provide a more detailed description of this utility model. These embodiments are only used to illustrate the utility model and are not intended to limit the scope of this utility model.

[0032] An apparatus for removing metal particles from hydrogen production electrolyte, the apparatus comprising: a cylinder 1, a cover plate 2, magnetic rods 3, an inlet pipe 6, an outlet pipe 7, and a sealing gasket 8; the inlet pipe 6 and the outlet pipe 7 are respectively provided on both sides of the cylinder 1, and the cover plate 2 is provided on the top of the cylinder 1; a plurality of magnetic rods 3 are provided on the side of the cover plate 2 on the cylinder 1.

[0033] Furthermore, a filter basket 4 is provided inside the cylinder 1; the filter basket 4 is a barrel shape with an open top, and a flange 14 is provided on the outer side of the top of the filter basket 4; the flange 14 cooperates with the retaining ring 15 inside the cylinder 1.

[0034] Furthermore, the retaining ring 15 is circumferentially positioned below the inlet pipe 6 and above the outlet pipe 7; the inlet pipe 6 extends into the filter basket 4.

[0035] Furthermore, the magnetic rod 3 is disposed inside the filter basket 4.

[0036] Furthermore, a sealing gasket 8 is provided between the cylinder 1 and the cover plate 2.

[0037] Furthermore, the cylinder 1 and the cover plate 2 are connected by bolts 12 and matching nuts 13.

[0038] Furthermore, the device also includes a differential pressure gauge 9; one end of the differential pressure gauge 9 is connected to the inside of the cylinder 1 by a cylinder pressure guide pipe 10, and the other end is connected to the inside of the liquid outlet pipe 7 by a liquid outlet pressure guide pipe 11.

[0039] Furthermore, the magnetic rod 3 is connected to the cover plate 2 via threads 16.

[0040] Furthermore, the device also includes a support frame 5; the support frame 5 includes several longitudinal tie rods 51 and a distribution plate 52, one end of the tie rod 51 is fixed to the cover plate 2, and the other end is connected to the distribution plate 52.

[0041] Furthermore, the distribution plate 52 has openings corresponding to the distribution positions of the magnetic rods 3, and the ends of the magnetic rods 3 pass through the openings. Example

[0042] An apparatus for removing metal particles from hydrogen production electrolyte, the apparatus comprising: a cylinder 1, a cover plate 2, magnetic rods 3, an inlet pipe 6, an outlet pipe 7, and a sealing gasket 8; the inlet pipe 6 and the outlet pipe 7 are respectively provided on both sides of the cylinder 1, and the cover plate 2 is provided on the top of the cylinder 1; a plurality of magnetic rods 3 are provided on the side of the cover plate 2 on the cylinder 1.

[0043] A filter basket 4 is installed inside the cylindrical body 1. The filter basket 4 is a barrel shape with an open top, and a flange 14 is provided on the outer side of the top of the filter basket 4. The flange 14 cooperates with a retaining ring 15 on the inner side of the cylindrical body 1. The retaining ring 15 is circumferentially positioned below the inlet pipe 6 and above the outlet pipe 7. The inlet pipe 6 extends into the filter basket 4. The magnetic rod 3 is installed inside the filter basket 4. A sealing gasket 8 is provided between the cylindrical body 1 and the cover plate 2.

[0044] The cylinder 1 and cover plate 2 are connected by bolts 12 and matching nuts 13. The device also includes a differential pressure gauge 9; one end of the differential pressure gauge 9 is connected to the inside of the cylinder 1 via a cylinder pressure guiding pipe 10, and the other end is connected to the inside of the liquid outlet pipe 7 via a liquid outlet pressure guiding pipe 11. The magnetic rod 3 is connected to the cover plate 2 via threads 16. Example

[0045] An apparatus for removing metal particles from hydrogen production electrolyte, comprising: a cylinder 1, a cover plate 2, magnetic rods 3, an inlet pipe 6, an outlet pipe 7, and a sealing gasket 8; the inlet pipe 6 and outlet pipe 7 are respectively arranged on both sides of the cylinder 1, and the cover plate 2 is arranged on the top of the cylinder 1; several magnetic rods 3 are arranged on the side of the cover plate 2 on the cylinder 1. A filter basket 4 is arranged inside the cylinder 1; the filter basket 4 is a barrel shape with an open top, and a flange 14 is arranged on the outer side of the top of the filter basket 4; the flange 14 cooperates with a retaining ring 15 on the inner side of the cylinder 1. The retaining ring 15 is circumferentially arranged below the inlet pipe 6 and above the outlet pipe 7; the inlet pipe 6 leads into the filter basket 4. The magnetic rods 3 are arranged inside the filter basket 4. A sealing gasket 8 is arranged between the cylinder 1 and the cover plate 2. The cylinder 1 and the cover plate 2 are connected by bolts 12 and matching nuts 13.

[0046] The device also includes a differential pressure gauge 9; one end of the differential pressure gauge 9 is connected to the inside of the cylinder 1 via a cylinder pressure guide pipe 10, and the other end is connected to the inside of the liquid outlet pipe 7 via a liquid outlet pressure guide pipe 11. The magnetic rod 3 is connected to the cover plate 2 via a thread 16. The device also includes a support frame 5; the support frame 5 includes several longitudinal tie rods 51 and a distribution plate 52, one end of the tie rod 51 is fixed to the cover plate 2, and the other end is connected to the distribution plate 52. The distribution plate 52 has openings corresponding to the distribution positions of the magnetic rods 3, and the ends of the magnetic rods 3 pass through the openings.

[0047] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0048] It should also be noted that the various specific technical features and steps described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0049] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. An apparatus for removing hydrogen-producing electrolyte metal particles, characterized by comprising: The device comprises a cylinder (1), a cover plate (2), magnetic rods (3), an inlet pipe (6), an outlet pipe (7) and a sealing gasket (8). The cylinder (1) is provided with the inlet pipe (6) and the outlet pipe (7) on both sides, and the cover plate (2) is arranged on the top of the cylinder (1). The cylinder (1) side of the cover plate (2) is provided with a plurality of magnetic rods (3).

2. The apparatus for removing metal particles from a hydrogen-producing electrolyte of claim 1, wherein: The inside of the cylinder (1) is provided with a filter basket (4). The filter basket (4) is a barrel-shaped structure with an open top, and a flange (14) is arranged on the outside of the top of the filter basket (4); the flange (14) cooperates with a clamping ring (15) on the inside of the cylinder (1).

3. A device for removing metal particles from a hydrogen-producing electrolyte according to claim 2, characterized in that: The clamping ring (15) is arranged below the inlet pipe (6) and above the outlet pipe (7). The inlet pipe (6) penetrates into the filter basket (4).

4. The apparatus for removing metal particles from a hydrogen-producing electrolyte of claim 2, wherein: The magnetic rods (3) are arranged in the filter basket (4).

5. The apparatus for removing metal particles from a hydrogen production electrolyte of claim 1 or 2, wherein: The cylinder (1) and the cover plate (2) are connected by a bolt (12) and a nut (13) matched therewith.

6. The apparatus for removing metal particles of an electrolyte for hydrogen production according to claim 1 or 2, characterized by: The device further comprises a differential pressure gauge (9).

7. A device for removing metal particles from an electrolyte for hydrogen production according to claim 1 or 2, characterized in that: One end of the differential pressure gauge (9) is connected to the inside of the cylinder (1) by a cylinder pressure guide pipe (10), and the other end is connected to the inside of the outlet pipe (7) by an outlet pressure guide pipe (11). The magnetic rods (3) are connected to the cover plate (2) by threads (16).

8. The apparatus for removing metal particles of an electrolyte for hydrogen production according to claim 1 or 2, wherein: The device further comprises a support frame (5).

9. The apparatus for removing metal particles from a hydrogen-producing electrolyte of claim 1 or 2, wherein: The support frame (5) comprises a plurality of longitudinal pull rods (51) and a distribution plate (52), one end of the pull rod (51) is fixed to the cover plate (2), and the other end is connected to the distribution plate (52). The distribution plate (52) is provided with holes corresponding to the positions of the magnetic rods (3), and the ends of the magnetic rods (3) penetrate through the holes.

10. The apparatus for removing metal particles from a hydrogen-producing electrolyte of claim 9, wherein: ​

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