Recycling mechanism of hydrogen production device

By introducing a removable screen and a scraper cleaning mechanism into the hydrogen production unit, the problem of screen clogging has been solved, the screen service life has been extended, the filtration efficiency has been improved, the operating cost has been reduced, and the continuity of the hydrogen production system has been ensured.

CN223547825UActive Publication Date: 2025-11-14HENAN DAHUA ELECTRIC INSTR ENG TECH CO LTD
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Patent Information

Application Number
CN202423003341.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-05
Publication Date
2025-11-14
Estimated Expiration
2034-12-05

AI Technical Summary

Technical Problem

In the existing hydrogen production equipment, the screens are prone to clogging during the washing wastewater filtration process, which leads to a decrease in filtration efficiency, increases operating costs, and affects the efficiency of the hydrogen production system.

Method used

Design a recycling mechanism for a hydrogen production device, which uses a detachable screen and a cleaning scraper. The screen is rotated by a rotating shaft and impurities are removed by the cleaning scraper. Combined with a stirring component, impurity gases are neutralized, reducing the frequency of screen replacement.

Benefits of technology

It extends the service life of the screen, reduces the frequency of screen replacement, improves filtration efficiency, reduces operating costs, and ensures the continuity of wastewater treatment and the efficiency of the hydrogen production system.

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Abstract

The utility model provides a recycling mechanism of a hydrogen production device, which belongs to the field of hydrogen production devices and comprises a recycling box, a rotating shaft is rotatably arranged in the recycling box and connected with a plurality of screening nets, cleaning scrapers are attached to the upper surfaces of the screening nets, and stirring barrels are arranged below the screening nets. During use, washing water used in the hydrogen production process is poured into the recycling box through the feeding port, when the washing water enters the recycling box, impurities in the washing water are filtered out through the multiple layers of screening nets, and then the washing water is filtered out through the multiple layers of screening nets; in the washing water filtering process, a driving motor is started, the driving motor drives a rotating shaft to rotate, the rotating shaft drives a screening net to rotate, when the screening net rotates, a cleaning scraper connected to the inner side wall of a recycling box cleans the surface of the rotating screening net, and the service life of the screening net is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of hydrogen production equipment, specifically to a recycling mechanism for hydrogen production equipment. Background Technology

[0002] In the hydrogen production industry, the treatment of wastewater from hydrogen production equipment washing processes is a crucial step. This wastewater contains a large amount of impurities, such as particulate matter, unreacted chemicals, and reaction byproducts. Filtration is a key step in effectively removing these impurities.

[0003] Currently, screen filtration is commonly used to filter wastewater from hydrogen production equipment. However, this method has significant drawbacks. Due to the complex composition and high concentration of impurities in the wastewater, these impurities easily accumulate on the screen and clog the screen pores during filtration. With increasing usage time, the filtration efficiency of the screen decreases sharply, leading to a decline in wastewater treatment effectiveness.

[0004] To ensure filtration quality, companies have to frequently replace screens. This not only increases equipment operating costs, including screen purchase costs and labor costs during replacement, but also affects the continuity of wastewater treatment, reduces the efficiency of the entire hydrogen production system, and causes economic losses to companies. Therefore, it is urgent to improve this situation. Utility Model Content

[0005] In view of this, the present invention provides a recycling mechanism for a hydrogen production device, which can be achieved by setting a detachable screen on the rotating shaft and setting a cleaning scraper on the inner side wall of the recycling box. When the screen rotates to filter the washing water, the cleaning scraper can clean the impurities on the screen, and the cleaned impurities fall into the recycling chamber along the conical screen.

[0006] To solve the above-mentioned technical problems, this utility model provides a recycling mechanism for a hydrogen production device, including a recycling box. The recycling box is used to connect and support the stirring tank and to recover the impurities separated in the washing water. A rotating shaft is provided inside the recycling box to drive the screen to rotate and throw the separated impurities into the recycling chamber below the screen. The screen is cone-shaped to facilitate the removal of impurities cleaned by the cleaning scraper. Multiple screens are connected to the rotating shaft to screen the impurities in the washing water. A cleaning scraper is attached to the upper surface of the screen to clean the impurities that are not thrown off the screen, reducing the need to replace the screen. A stirring tank is provided below the screen for recycling the filtered washing water. A drive assembly is provided above the recycling box to drive the rotating shaft to rotate.

[0007] The rotating shaft is symmetrically connected with limiting blocks, which are used to limit and support the screening screen. The lower surface of the screening screen is provided with a groove that matches the limiting block. The limiting block is locked in the groove, which is used to connect with the limiting block. The screening screen is driven to rotate through the limiting block.

[0008] The cleaning scrapers are symmetrically connected and installed on the inner wall of the recycling bin, so that the surface of the screening screen is cleaned by the fixed cleaning scrapers when the screen rotates.

[0009] The mixing tank is connected to the middle of the recycling box. A recycling chamber is provided between the mixing tank and the recycling box. The recycling chamber is used to recover and store the impurities screened out by the screening screen. The edge of the screening screen is located above the recycling chamber.

[0010] The mixing tank is equipped with a mixing component, which includes a mixing roller connected to and mounted on a rotating shaft. The mixing roller is used to mix the detergent added to the mixing tank with the filtered washing water, thereby neutralizing impurities such as carbon dioxide and carbon monoxide contained in the washing water.

[0011] A discharge pipe is provided on one side of the recycling bin. The discharge pipe facilitates the extraction of filtered and neutralized washing water and reused water from the mixing tank. The discharge pipe passes through the recycling chamber and is connected to the mixing tank.

[0012] The recycling bin is equipped with a feed inlet at the top, which facilitates the addition of washing water. The feed inlet is located above the screening screen. The drive component is a drive motor connected to the top of the recycling bin, and the output end of the drive motor is connected to the rotating shaft.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. The washing water used in the hydrogen production process is poured into the recovery tank through the feed inlet. When the washing water enters the recovery tank, it first passes through a multi-layered sieve to filter out impurities.

[0015] 2. During the filtration of washing water, the drive motor is started, which drives the rotating shaft to rotate. The rotating shaft drives the screen to rotate. When the screen rotates, the cleaning scraper connected to the inner wall of the recycling box cleans the surface of the rotating screen, increasing the service life of the screen and reducing the need to replace it.

[0016] 3. After the washing water is filtered through the sieve, the filtered clean water drips into the mixing tank located below the sieve. Chemical agents are added to the mixing tank and the materials in the mixing tank are stirred and mixed using a stirring roller, so that the chemicals in the mixing tank are mixed to neutralize impurities such as carbon dioxide and carbon monoxide contained in the washing water. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the main structure of the recycling mechanism of a hydrogen production device according to this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of the present utility model AA;

[0020] Figure 4 This is a cross-sectional view of the present invention BB;

[0021] Figure 5 This is a partially enlarged schematic diagram of part A of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 100, recycling bin; 101, rotating shaft; 102, screening screen; 103, cleaning scraper; 104, mixing tank; 105, limiting block; 106, groove; 107, recycling chamber; 108, mixing roller; 109, feed inlet; 110, drive assembly; 111, drive motor; 112, discharge pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0024] like Figure 1-4 As shown:

[0025] This embodiment provides a recycling mechanism for a hydrogen production device, including a recycling tank 100. The recycling tank 100 is used to connect and support the stirring tank 104 and to recover impurities separated in the washing water. A rotating shaft 101 is rotatably installed inside the recycling tank 100. The rotating shaft 101 is used to drive the screening screen 102 to rotate and throw the separated impurities into the recycling chamber 107 below the screening screen 102. Multiple screening screens 102 are connected to the rotating shaft 101. The screening screens 102 are arranged vertically on the rotating shaft 101, and the aperture of the vertically arranged screening screens 102 is arranged from large to small. The screen 102 is designed to separate impurities from the washing water. A cleaning scraper 103 is attached to the upper surface of the screen to clean the impurities that are not thrown off the screen, reducing the need to replace the screen. A stirring tank 104 is located below the screen to collect the filtered washing water. A drive assembly 110 is located above the collection box 100 to drive the rotating shaft 101 to rotate.

[0026] A limiting block 105 is symmetrically connected on the rotating shaft 101. The limiting block 105 is fixedly connected to the rotating shaft 101 and is used to limit and support the screening screen 102. The lower surface of the screening screen 102 is provided with a groove 106 that matches the limiting block 105. The limiting block 105 is locked in the groove 106. The groove 106 is used to connect with the limiting block 105 and drives the screening screen 102 to rotate through the limiting block 105.

[0027] The cleaning scrapers 103 are symmetrically connected and installed on the inner side wall of the recycling bin 100. The cleaning scrapers 103 are fixedly installed on the side wall of the recycling bin 100 by quick-release components, which facilitates the replacement of the cleaning scrapers 103 and the screening screen 102. When the screening screen 102 rotates, the surface of the screening screen 102 is cleaned by the fixed cleaning scrapers 103.

[0028] The mixing tank 104 is connected and positioned in the middle of the recycling box 100. A recycling chamber 107 is provided between the mixing tank 104 and the recycling box 100. The recycling chamber 107 is used to recycle and store the impurities screened out on the screening screen 102. The edge of the screening screen 102 is located above the recycling chamber 107.

[0029] The mixing tank 104 is equipped with a mixing assembly, which includes a mixing roller 108 connected to and mounted on a rotating shaft 101. The mixing roller 108 is fixedly connected to the rotating shaft 101 and is used to mix the detergent added to the mixing tank 104 with the filtered washing water to neutralize impurities such as carbon dioxide and carbon monoxide contained in the washing water.

[0030] A discharge pipe 112 is provided on one side of the recycling bin 100. The discharge pipe 112 facilitates the extraction of filtered and neutralized washing water and reused water from the mixing tank 104. The discharge pipe 112 passes through the recycling chamber 107 and is connected to the mixing tank 104.

[0031] The recycling bin 100 is provided with a feed inlet 109, which facilitates the addition of washing water into the recycling bin 100. The feed inlet 109 is located above the screening screen 102. The drive assembly 110 is a drive motor 111 connected and installed above the recycling bin 100. The output end of the drive motor 111 is connected and installed with the rotating shaft 101.

[0032] Working principle: During use, the washing water used in the hydrogen production process is poured into the recovery tank 100 through the feed inlet 109. When the washing water enters the recovery tank 100, it first passes through a multi-layered screening screen 102 to filter impurities. During the filtration process, the drive motor 111 is started, which drives the rotating shaft 101 to rotate. The rotating shaft 101 drives the screening screen 102 to rotate. When the screening screen 102 rotates, it connects to the cleaning scraper set on the inner wall of the recovery tank 100. Plate 103 cleans the surface of the rotating screen 102, increasing the service life of the screen 102 and reducing the need for replacement. After the washing water is filtered through the screen 102, the filtered water drips into the mixing tank 104 located below the screen 102. By adding chemical agents to the mixing tank 104 and using the mixing roller 108 to stir and mix the materials in the mixing tank 104, the chemicals in the mixing tank 104 are mixed to neutralize impurities such as carbon dioxide and carbon monoxide contained in the washing water.

[0033] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A recycling mechanism for a hydrogen production device, characterized in that: The system includes a recycling bin (100), a rotating shaft (101) is rotatably mounted inside the recycling bin (100), a plurality of screening screens (102) are connected to the rotating shaft (101), a cleaning scraper (103) is attached to the upper surface of the screening screens, a stirring tank (104) is provided below the screening screens (102), and a drive assembly (110) for driving the rotating shaft (101) to rotate is provided above the recycling bin (100).

2. The recycling mechanism of a hydrogen production device as described in claim 1, characterized in that: The rotating shaft (101) is symmetrically connected with a limiting block (105), and the lower surface of the screening screen (102) is provided with a groove (106) that matches the limiting block (105). The limiting block (105) is locked in the groove (106).

3. The recycling mechanism of a hydrogen production device as described in claim 2, characterized in that: The cleaning scrapers (103) are symmetrically connected and arranged on the inner side wall of the recycling bin (100).

4. The recycling mechanism of a hydrogen production device as described in claim 3, characterized in that: The mixing tank (104) is connected and disposed in the middle of the recycling box (100). A recycling chamber (107) is provided between the mixing tank (104) and the recycling box (100). The edge of the screening screen (102) is located above the recycling chamber (107).

5. The recycling mechanism of a hydrogen production device as described in claim 4, characterized in that: The mixing tank (104) is equipped with a mixing assembly, which includes a mixing roller (108) connected to the rotating shaft (101).

6. The recycling mechanism of a hydrogen production device as described in claim 5, characterized in that: The recycling bin (100) is provided with a discharge pipe (112) on one side, and the discharge pipe (112) passes through the recycling chamber (107) and is connected to the mixing tank (104).

7. The recycling mechanism of a hydrogen production device as described in claim 6, characterized in that: The recycling bin (100) is provided with a feed inlet (109) above it. The feed inlet (109) is located above the screening screen (102). The drive assembly (110) is a drive motor (111) connected above the recycling bin (100). The output end of the drive motor (111) is connected to the rotating shaft (101).