Efficient filtering device for producing hydrogen from methanol

Abstract

The utility model discloses an efficient filtering device for producing hydrogen from methanol, which comprises a filtering box, a liquid inlet pipe is fixedly communicated with the inside of the filtering box, a liquid discharge pipe is fixedly communicated with the inside of the filtering box, a cleaning mechanism is arranged inside the filtering box, the outer surface of the filtering box is fixedly connected with a mounting frame, and the inner wall of the filtering box is slidably connected with a sealing door. A fixed insertion rod is inserted into the filter box, the fixed insertion rod is inserted into the sealing door, three clamping grooves are formed in the inner wall of the filter box, and the inner walls of the three clamping grooves are each slidably connected with a filter element. By arranging the cleaning mechanism, impurities on the three layers of filter elements can be conveniently cleaned at the same time, it is ensured that all the layers of filter elements keep good filtering performance all the time, the filter elements are prevented from being blocked, the working efficiency of the filter device is remarkably improved, stable hydrogen production is guaranteed, the production cost is greatly reduced, and the product quality is improved. The service life of the filter element is prolonged, and powerful support is provided for efficient operation of a methanol-to-hydrogen process.

Description

Technical Field

[0001] This utility model relates to the field of methanol-to-hydrogen technology, and in particular to a high-efficiency filtration device for methanol-to-hydrogen production. Background Technology

[0002] With the continuous growth of hydrogen energy demand, efficient and stable methanol-to-hydrogen technology has become a research hotspot. In the methanol-to-hydrogen process, the raw material methanol often contains various impurities. If these impurities are not effectively filtered, they will damage the hydrogen production equipment and affect the purity and production efficiency of hydrogen. Therefore, high-efficiency filtration devices for methanol-to-hydrogen have emerged and play a crucial role in improving the quality of hydrogen.

[0003] However, in practical applications, traditional methanol-to-hydrogen filtration devices are difficult to clean. Due to the complex composition of impurities in methanol, they tend to accumulate on the surface of the filter element. Conventional filtration devices lack convenient and effective cleaning methods. Once the filter element is clogged, it will not only lead to a significant decrease in filtration efficiency and affect the continuity of hydrogen production, but also increase production costs due to frequent filter element replacements, which has certain shortcomings. Utility Model Content

[0004] The problem this invention aims to solve is to provide a high-efficiency filtration device for methanol-to-hydrogen production that can efficiently clean the filter element.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-efficiency filtration device for methanol-to-hydrogen production, including a filter box, an inlet pipe fixedly connected to the inside of the filter box, a drain pipe fixedly connected to the inside of the filter box, a cleaning mechanism provided inside the filter box, a mounting bracket fixedly connected to the outer surface of the filter box, a sealing door slidably connected to the inner wall of the filter box, a fixed rod inserted into the inside of the filter box and inserted into the inside of the sealing door, three slots opened on the inner wall of the filter box, a filter element slidably connected to the inner wall of each of the three slots, and three limiting grooves opened on the inner wall of the filter box.

[0006] Preferably, in the above-mentioned high-efficiency filtration device for methanol-to-hydrogen production, the cleaning mechanism includes a motor fixedly installed on the outer surface of the mounting frame, the output end of the motor is fixedly connected to a rotating shaft, and the outer surface of the rotating shaft is rotatably connected to the inner wall of the mounting frame.

[0007] Preferably, in the above-mentioned high-efficiency filtration device for methanol-to-hydrogen production, a drive gear is fixedly connected to the end of the rotating shaft away from the motor, and a lead screw is fixedly connected to the outer surface of the drive gear, and the outer surface of the lead screw is rotatably connected to the inner wall of the filter box.

[0008] Preferably, in the above-mentioned high-efficiency filtration device for methanol-to-hydrogen production, a cleaning brush is threadedly connected to the outer surface of the lead screw, the outer surface of the cleaning brush is slidably connected to the inner wall of the limiting groove, and the bottom of the cleaning brush is in contact with the top of the filter element.

[0009] Preferably, in the above-mentioned high-efficiency filtration device for methanol-to-hydrogen production, the outer surface of the driving gear is meshed with a driven gear, the outer surface of the driven gear is fixedly connected with a lead screw, the outer surface of the lead screw is rotatably connected to the inner wall of the filter box, the outer surface of the lead screw is threadedly connected with a cleaning brush, the outer surface of the cleaning brush is slidably connected to the inner wall of the limiting groove, and the bottom of the cleaning brush is in contact with the top of the filter element.

[0010] Preferably, in the above-mentioned high-efficiency filtration device for methanol-to-hydrogen production, the outer surface of the driving gear is meshed with a driven gear two, the outer surface of the driven gear two is fixedly connected with a lead screw three, and the outer surface of the lead screw three is rotatably connected to the inner wall of the filter box. The outer surface of the lead screw three is threadedly connected with a cleaning brush three, the outer surface of the cleaning brush three is slidably connected to the inner wall of the limiting groove, and the bottom of the cleaning brush three is in contact with the top of the filter element.

[0011] The advantages and beneficial effects of this utility model are:

[0012] I. By setting up a cleaning mechanism, this utility model can facilitate the simultaneous cleaning of impurities on the three filter layers, ensuring that each filter layer maintains good filtration performance and avoiding filter blockage. This not only significantly improves the working efficiency of the filtration device and ensures the stable operation of hydrogen production, but also greatly reduces production costs, extends the service life of the filter elements, and provides strong support for the efficient operation of the methanol-to-hydrogen process.

[0013] Second, this utility model uses the precise meshing of the driving gear with driven gear one and driven gear two to drive lead screw one, lead screw two and lead screw three to rotate synchronously, so that cleaning brush one, cleaning brush two and cleaning brush three can clean the three filter elements at the same rhythm. This avoids the problem of inconsistent cleaning of each filter element. Whether it is the upper, middle or lower filter element, it can be cleaned and maintained just right, which greatly improves the cleaning effect of the entire filtration device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model.

[0018] In the diagram: 1. Filter box; 2. Inlet pipe; 3. Drain pipe; 4. Cleaning mechanism; 401. Motor; 402. Rotating shaft; 403. Drive gear; 404. Lead screw one; 405. Cleaning brush one; 406. Driven gear one; 407. Lead screw two; 408. Cleaning brush two; 409. Driven gear two; 410. Lead screw three; 411. Cleaning brush three; 5. Mounting bracket; 6. Sealing door; 7. Fixing rod; 8. Slot; 9. Filter element; 10. Limiting slide groove. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] like Figures 1 to 4 As shown, a high-efficiency filtration device for methanol-to-hydrogen production includes a filter box 1. The filter box 1 is rectangular in shape and is made of high-strength stainless steel. This material not only has good corrosion resistance, effectively resisting the erosion of methanol and impurities and extending the service life of the filter box 1, but also has sufficient strength to withstand the pressure of the internal fluid and ensure the safety of the device operation.

[0021] The filter box 1 is internally connected to an inlet pipe 2. The inlet pipe 2 is a circular pipe made of engineering plastic material that is resistant to methanol corrosion. Its inner wall is smooth, which can reduce the resistance of the fluid when it enters, so that the raw material methanol containing impurities can flow smoothly into the filter box 1.

[0022] The interior of the filter box 1 is also fixedly connected to a drain pipe 3, which is also a circular pipe made of the same material as the inlet pipe 2. Its function is to discharge the methanol filtered by the filter element 9 into the filter box 1, providing pure raw materials for the subsequent hydrogen production process.

[0023] A mounting bracket 5 is fixedly connected to the outer surface of the filter box 1. The mounting bracket 5 has a frame structure and is welded from angle steel. The surface of the angle steel is treated with anti-rust treatment to give it good anti-rust performance. The function of the mounting bracket 5 is to provide stable support for the entire filter device, so as to facilitate the installation of the filter device in a suitable position and ensure that it remains stable during operation without shaking or displacement.

[0024] The inner wall of the filter box 1 is slidably connected to a sealing door 6. The sealing door 6 is a rectangular flat plate made of stainless steel, and its edges are fitted with rubber sealing strips. This design allows the sealing door 6 to fit tightly against the inner wall of the filter box 1 when closed, effectively preventing methanol leakage and ensuring the sealing of the filtration process. At the same time, the rubber sealing strips can also act as a buffer, reducing the impact on the filter box 1 when the sealing door 6 is closed.

[0025] A fixing rod 7 is inserted inside the filter box 1. The fixing rod 7 is a cylindrical metal rod made of stainless steel. It is inserted into the inside of the sealing door 6 to fix the sealing door 6 and prevent the sealing door 6 from being accidentally opened due to internal pressure or other external forces during the filtration process, thus ensuring the safety of the device operation.

[0026] The inner wall of the filter box 1 has three slots 8, which are rectangular and evenly distributed. Each of the three slots 8 has a filter element 9 slidably connected to its inner wall. The top layer is made of coarse non-woven fabric, which can initially intercept larger particles of impurities. The middle layer is made of medium-precision activated carbon fiber felt, which can not only filter smaller particles but also adsorb some impurities. The bottom filter element 9 is a high-precision polytetrafluoroethylene microporous membrane filter element, which can effectively capture tiny particles and ensure that the filtered methanol meets the high purity standard. This multi-layer design can perform multi-stage filtration of methanol, greatly improving the filtration effect.

[0027] The inner wall of the filter box 1 is also provided with three limiting grooves 10. The limiting grooves 10 are elongated and their function is to restrict the movement trajectory of the cleaning brush, so that when the cleaning brush cleans the filter element 9, it can only make stable reciprocating motion along the direction of the limiting grooves 10, thus ensuring the comprehensiveness and uniformity of cleaning the filter element 9.

[0028] The filter box 1 is equipped with a cleaning mechanism 4 inside.

[0029] The cleaning mechanism 4 includes a motor 401 fixedly installed on the outer surface of the mounting bracket 5. The motor 401 is a DC motor, which has the advantages of small size, large torque and convenient speed adjustment. The output end of the motor 401 is fixedly connected to a rotating shaft 402. The rotating shaft 402 is a cylindrical metal shaft made of alloy steel. The surface is hardened to improve its hardness and wear resistance. The outer surface of the rotating shaft 402 is rotatably connected to the inner wall of the mounting bracket 5 through bearings. This connection method can reduce the friction when the rotating shaft 402 rotates, improve the transmission efficiency of the motor 401, and enable the rotating shaft 402 to rotate stably and smoothly.

[0030] The end of the rotating shaft 402 away from the motor 401 is fixedly connected to the drive gear 403. The drive gear 403 is a standard spur gear made of high-quality carbon steel and has undergone carburizing and quenching treatment to improve the surface hardness and wear resistance of the gear.

[0031] The outer surface of the drive gear 403 is fixedly connected to a lead screw 404. The lead screw 404 is a trapezoidal lead screw made of stainless steel. This type of lead screw has the characteristics of high transmission efficiency and good self-locking performance. The outer surface of the lead screw 404 is rotatably connected to the inner wall of the filter box 1 through a bearing to ensure the stability of the lead screw 404 during rotation and reduce shaking and friction loss.

[0032] A cleaning brush 405 is threadedly connected to the outer surface of the lead screw 404. The brush head of the cleaning brush 405 is made of soft and wear-resistant nylon bristles, and the handle is made of plastic and is firmly connected to the bristles. The outer surface of the cleaning brush 405 is slidably connected to the inner wall of the limiting slide groove 10. When the lead screw 404 rotates, the cleaning brush 405 is restricted by the limiting slide groove 10 and can only move back and forth along the lead screw 404. Its bottom contacts the top of the filter element 9, thereby cleaning the middle filter element 9, effectively removing the impurities accumulated on the surface of the filter element 9, and maintaining the filtration performance of the filter element 9.

[0033] The outer surface of the driving gear 403 is meshed with the driven gear 406. The driven gear 406 has the same specifications as the driving gear 403, and is also a standard spur gear. The material and processing technology are also the same.

[0034] A lead screw 407 is fixedly connected to the outer surface of the driven gear 406. The structure and material of the lead screw 407 are the same as those of the lead screw 404. The outer surface of the lead screw 407 is rotatably connected to the inner wall of the filter box 1 through a bearing to ensure the smooth rotation of the lead screw 407.

[0035] The outer surface of the lead screw 407 is threaded with a cleaning brush 408. The structure and material of the cleaning brush 408 are the same as those of the cleaning brush 405. Its outer surface is slidably connected to the inner wall of the limiting groove 10, and its bottom is in contact with the top of the filter element 9. When the lead screw 407 rotates, it drives the cleaning brush 408 to clean the upper filter element 9.

[0036] Driven gear 2 409 is meshed with the outer surface of the driving gear 403. The parameters of driven gear 2 409 are the same as those of driven gear 1 406. A lead screw 3 410 is fixedly connected to the outer surface of driven gear 2 409. Lead screw 3 410 is the same as lead screw 1 404 and lead screw 2 407. The outer surface of lead screw 3 410 is rotatably connected to the inner wall of filter box 1. A cleaning brush 3 411 is threadedly connected to the outer surface of lead screw 3 410. Cleaning brush 3 411 is the same as cleaning brush 1 405 and cleaning brush 2 408. Its outer surface is slidably connected to the inner wall of the limiting slide groove 10. The bottom contacts the top of the filter element 9. When the lead screw 3 410 rotates, it drives the cleaning brush 3 411 to clean the lower filter element 9. Through this structural design, the motor 401 drives the drive gear 403 to rotate. The drive gear 403 drives the lead screw 1 404, the driven gear 1 406 and the driven gear 2 409, which in turn causes the lead screw 2 407 and the lead screw 3 410 to rotate synchronously, so as to clean the three layers of filter elements 9 at the same time, which greatly improves the cleaning efficiency, ensures that each layer of filter element 9 always maintains good filtration performance, and ensures the efficient and stable operation of the methanol to hydrogen process.

[0037] Working Principle: During operation, methanol containing impurities flows into the filter box 1 through the inlet pipe 2. The three-layer filter element 9 performs coarse filtration, medium filtration, and fine filtration sequentially from top to bottom, performing multi-stage filtration of the methanol. The filtered methanol flows out through the drain pipe 3. When it is necessary to clean the filter element 9, the cleaning mechanism 4 is activated. The motor 401 drives the rotating shaft 402 to rotate, and the drive gear 403 connected to the rotating shaft 402 rotates accordingly. The drive gear 403 drives the lead screw 404 to rotate, causing the cleaning brush 405, which is threaded onto the lead screw 404, to move under the constraint of the limiting groove 10. The screw reciprocates left and right to clean the middle filter element 9. At the same time, the drive gear 403 meshes with the driven gear 1 406 and driven gear 2 409 respectively, driving the lead screw 2 407 and lead screw 3 410 to rotate, so that the cleaning brush 2 408 and cleaning brush 3 411 clean the upper and lower filter elements 9 simultaneously. In this way, not only are the impurities accumulated on the surface of each filter element 9 effectively removed, ensuring the filtration performance of the filter element 9 and maintaining the efficient and stable operation of the filtration device, but the drawback of increased production costs caused by frequent replacement of filter elements 9 is also avoided.

[0038] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0039] It should be noted that all standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," etc., 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A high-efficiency filtration device for methanol-to-hydrogen production, characterized in that: The filter includes a filter box (1), an inlet pipe (2) fixedly connected to the inside of the filter box (1), a drain pipe (3) fixedly connected to the inside of the filter box (1), a cleaning mechanism (4) provided inside the filter box (1), a mounting bracket (5) fixedly connected to the outer surface of the filter box (1), a sealing door (6) slidably connected to the inner wall of the filter box (1), a fixed rod (7) inserted into the inside of the filter box (1), and the fixed rod (7) inserted into the inside of the sealing door (6), three slots (8) are provided on the inner wall of the filter box (1), a filter element (9) is slidably connected to the inner wall of each of the three slots (8), and three limiting grooves (10) are provided on the inner wall of the filter box (1).

2. The high-efficiency filtration device for methanol-to-hydrogen production according to claim 1, characterized in that: The cleaning mechanism (4) includes a motor (401) fixedly installed on the outer surface of the mounting frame (5). The output end of the motor (401) is fixedly connected to a rotating shaft (402), and the outer surface of the rotating shaft (402) is rotatably connected to the inner wall of the mounting frame (5).

3. The high-efficiency filtration device for methanol-to-hydrogen production according to claim 2, characterized in that: The end of the rotating shaft (402) away from the motor (401) is fixedly connected to a drive gear (403), and a lead screw (404) is fixedly connected to the outer surface of the drive gear (403), and the outer surface of the lead screw (404) is rotatably connected to the inner wall of the filter box (1).

4. The high-efficiency filtration device for methanol-to-hydrogen production according to claim 3, characterized in that: The outer surface of the lead screw (404) is threaded with a cleaning brush (405). The outer surface of the cleaning brush (405) is slidably connected to the inner wall of the limiting groove (10). The bottom of the cleaning brush (405) is in contact with the top of the filter element (9).

5. A high-efficiency filtration device for methanol-to-hydrogen production according to claim 3, characterized in that: The outer surface of the driving gear (403) is meshed with a driven gear (406), and the outer surface of the driven gear (406) is fixedly connected with a lead screw (407). The outer surface of the lead screw (407) is rotatably connected to the inner wall of the filter box (1). The outer surface of the lead screw (407) is threadedly connected with a cleaning brush (408). The outer surface of the cleaning brush (408) is slidably connected to the inner wall of the limiting groove (10). The bottom of the cleaning brush (408) is in contact with the top of the filter element (9).

6. A high-efficiency filtration device for methanol-to-hydrogen production according to claim 3, characterized in that: The outer surface of the driving gear (403) is meshed with the driven gear two (409), the outer surface of the driven gear two (409) is fixedly connected with the lead screw three (410), and the outer surface of the lead screw three (410) is rotatably connected to the inner wall of the filter box (1). The outer surface of the lead screw three (410) is threadedly connected with the cleaning brush three (411), the outer surface of the cleaning brush three (411) is slidably connected to the inner wall of the limiting slide groove (10), and the bottom of the cleaning brush three (411) is in contact with the top of the filter element (9).

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