Methanol-to-hydrogen converted gas washing tower

Abstract

The utility model discloses a methanol-to-hydrogen conversion gas washing tower, which relates to the technical field of methanol-to-hydrogen, and is technically characterized by comprising a tower body, a gas inlet pipeline, a liquid outlet pipe and a discharge pipeline, the gas inlet pipeline, the liquid outlet pipe and the discharge pipeline are respectively communicated with the side wall of the tower body, and the liquid outlet pipe is connected with a treatment structure through a communicated return pipe; the treatment structure comprises a tank body which is connected to the return pipe through a first connecting pipeline communicated with one end and connected to an L-shaped pipe extending out of the side wall of the tower body through a second connecting pipeline communicated with the other end, the L-shaped pipe is communicated with a spraying disc, and the spraying disc is arranged in the tower body; the washing tower has the technical effects that a recycled washing agent is filtered and treated by the filtering piece and then enters the spraying disc through the second connecting pipeline and the L-shaped pipe to spray gas in the tower body again, so that residual impurities in the washing solution can be treated in the cyclic utilization process of the washing solution, and the spraying blockage of the washing tower is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of methanol hydrogen production, specifically to a methanol hydrogen production conversion gas washing tower. BACKGROUND

[0002] Methanol hydrogen production is a technical route of hydrogen production. China is the largest methanol producer in the world, accounting for 60% of global methanol production capacity. Methanol is abundant and low-cost, and can be stored and transported as a liquid at room temperature and pressure. Compared with other hydrogen production methods such as industrial hydrogen production, methanol hydrogen production has lower energy consumption and cost.

[0003] However, the current methanol hydrogen production conversion gas washing tower has the problem of spray plugging during the recycling process of the washing liquid due to the residual impurities in the used washing liquid without treatment. Therefore, we propose a new methanol hydrogen production conversion gas washing tower. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a methanol hydrogen production conversion gas washing tower, which solves the problem of spray plugging of the washing tower during the recycling process of the washing liquid of the current methanol hydrogen production conversion gas washing tower due to the residual impurities in the used washing liquid without treatment.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a methanol hydrogen production conversion gas washing tower, comprising a tower body and an inlet pipe connected to the side wall of the tower body, an outlet pipe connected to the side wall, and an exhaust pipe connected to the top of the tower body,

[0008] The outlet pipe is connected to a treatment structure through a return pipe;

[0009] The treatment structure comprises:

[0010] A tank body is connected to the return pipe through a first connecting pipe connected to one end, and is connected to an L-shaped pipe extending out of the side wall of the tower body through a second connecting pipe connected to the other end. A spray disc is connected to the L-shaped pipe, and is placed in the tower body.

[0011] A filter is fixedly connected in the tank body.

[0012] Preferably, the number of filter elements is three, and the filter elements are equally distributed in the tank body.

[0013] Preferably, a spray pipe is installed in the hole on the tower body, and a circular shell is connected to the spray pipe. A support plate is installed inside the tower body, and a servo motor is installed inside the support plate. A vertical pipe is installed on the output shaft of the servo motor. The vertical pipe is rotatably connected to both sides of the circular shell through sealed bearings. No fewer than four horizontal pipes are connected to the side wall of the vertical pipe, and each horizontal pipe is connected to a nozzle. No fewer than six circular holes are opened in the center of the vertical pipe.

[0014] Preferably, the return pipe consists of a U-shaped pipe and a pump body;

[0015] One end of the U-shaped tube is connected to the outlet tube, the inlet end of the pump body is connected to the other end of the U-shaped tube, the outlet end of the pump body is connected to the first connecting pipe through a valve, the second connecting pipe is connected to the L-shaped tube through a valve, and a valve is connected to the outlet tube.

[0016] Preferably, a flushing pipe is connected to the side wall of the second connecting pipe, and a valve is installed on the flushing pipe; a waste discharge pipe is connected to the first connecting pipe, and a valve is installed on the waste discharge pipe.

[0017] Preferably, the horizontal pipe and the nozzle are connected by bolting.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a methanol-to-hydrogen conversion gas scrubbing tower, which has the following beneficial effects:

[0020] 1. In this device, gas enters the tower body, and washing liquid is introduced into the tower body to wash the gas. The washed solvent is discharged through the liquid outlet pipe and returned through the return pipe. It enters the tank body through the first connecting pipe and is filtered through the filter element. Then it enters the spray plate through the second connecting pipe and the L-shaped pipe to spray the gas in the tower body again. During the recycling of the washing liquid, residual impurities in the washing liquid can be treated to avoid clogging of the washing tower spray.

[0021] 2. When the servo motor is powered on, it drives the vertical pipe to rotate inside the circular shell through the sealed bearing, causing the horizontal pipe and the nozzle to rotate along the tower body. The detergent in the spray pipe enters the circular shell and then enters the vertical pipe through the circular hole. It is then sprayed out by the rotating nozzle on the horizontal pipe, forming a water wall with the tower body. It can fully contact the incoming gas, enhancing the washing effect. Attached Figure Description

[0022] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0023] Fig. 2 This is a schematic diagram of the support plate, servo motor, and vertical tube structure of this utility model;

[0024] Fig. 3 It is the spraying disc and L-shaped pipe structure schematic view of the utility model;

[0025] Fig. 4 It is the tank body, filter piece and first connecting pipeline structure schematic view of the utility model.

[0026] In the drawing:

[0027] 1, tower body;

[0028] 2, inlet pipeline;

[0029] 3, discharge pipeline;

[0030] 4, processing structure; 401, tank body; 402, filter piece; 403, first connecting pipeline; 404, second connecting pipeline;

[0031] 5, spraying pipeline;

[0032] 6, round shell;

[0033] 7, support plate;

[0034] 8, servo motor;

[0035] 9, vertical pipe;

[0036] 10, round hole;

[0037] 11, sealing bearing;

[0038] 12, cross pipe;

[0039] 13, spray head;

[0040] 14, liquid outlet pipe;

[0041] 15, U-shaped pipe;

[0042] 16, pump body;

[0043] 17, flushing pipe;

[0044] 18, impurity discharge pipe;

[0045] 19, spraying disc;

[0046] 20, L-shaped pipe. DETAILED DESCRIPTION

[0047] In the utility model, in the case that no opposite statement is made, the orientation such as "up, down" is usually for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is usually for the left, right shown in the drawing; "inner, outer" refers to the inner, outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0048] The utility model provides a technical scheme:

[0049] Please refer to Figs. 1-4 A kind of methanol hydrogen conversion gas washing column, including tower body 1 and respectively pass in the gas inlet pipeline 2 of tower body 1 side wall, the liquid outlet pipe 14 of side wall and the discharge pipeline 3 of top square, the mixed gas containing hydrogen, carbon dioxide, carbon monoxide and methane generated by methanol hydrogen generation is entered into the gas inlet pipeline 2,

[0050] The liquid outlet pipe 14 is connected with processing structure 4 by the reflux pipe of pass-through connection;

[0051] Processing structure 4 includes:

[0052] Tank body 401, it is connected on the reflux pipe by the first connecting pipeline 403 of one end pass-through connection, it is connected on the L-shaped pipe 20 that extends out in the side wall of tower body 1 by the second connecting pipeline 404 of other end pass-through connection, and the spray tray 19 is pass-through on the L-shaped pipe 20, and it is placed in tower body 1;

[0053] Filtering piece 402, filtering piece 402 is made of stainless steel material with surface being covered with through hole, and it is fixedly connected in tank body 401;

[0054] Gas enters into tower body 1, and the washing liquid is passed into tower body 1 to carry out washing treatment to gas, and the solvent after washing is discharged through liquid outlet pipe 14, and is refluxed through reflux pipe, is entered into tank body 401 through first connecting pipeline 403, and is filtered and handled through filtering piece 402, then is entered into spray tray 19 through second connecting pipeline 404 and L-shaped pipe 20, and gas in tower body 1 is sprayed again, so that residual impurities in washing liquid can be handled in the recycling process of washing liquid, to avoid causing washing tower spray blockage;

[0055] Washing liquid generally uses alkaline solution, such as sodium hydroxide, ammonia water and the like.

[0056] Further, the number of filtering piece 402 is three, filtering piece 402 is equidistantly distributed in tank body 401, filtering piece 402 is opened from the direction of washing agent reflux, and the aperture ratio of filtering piece 402 is 3:2:1, and the aperture can be selected according to actual use needs, and filtering piece 402 can carry out fine treatment to refluxed washing agent.

[0057] Further, the hole on the tower body 1 is installed with a spraying pipe 5, the detergent flows through the spraying pipe 5, the spraying pipe 5 is connected with a circular shell 6, the tower body 1 is installed with a support plate 7, the support plate 7 is installed with a servo motor 8, the output shaft of the servo motor 8 is installed with a vertical pipe 9, the vertical pipe 9 is rotatably connected with the two sides of the circular shell 6 through a sealing bearing 11, the side wall of the vertical pipe 9 is connected with not less than four horizontal pipes 12, the horizontal pipes 12 are respectively connected with nozzles 13, not less than six circular holes 10 are arranged in the center of the circular shell 6;

[0058] The position of the horizontal pipe 12 is above the spraying disc 19;

[0059] The servo motor 8 is connected with electricity, which drives the vertical pipe 9 to rotate in the circular shell 6 through the sealing bearing 11, so that the horizontal pipe 12 and the nozzle 13 rotate along the tower body 1, the detergent in the spraying pipe 5 enters the circular shell 6, and then enters the vertical pipe 9 through the circular hole 10, and is sprayed out through the nozzle 13 on the horizontal pipe 12, which forms a water wall with the tower body 1, and can fully contact with the entering gas, thereby enhancing the washing effect.

[0060] Further, the reflux pipe is composed of a U-shaped pipe 15 and a pump body 16;

[0061] One end of the U-shaped pipe 15 is connected with the liquid outlet pipe 14, the liquid inlet end of the pump body 16 is connected with the other end of the U-shaped pipe 15, the liquid outlet end of the pump body 16 is connected with the first connecting pipe 403 through a valve, the second connecting pipe 404 is connected with the L-shaped pipe 20 through a valve, and the valve is connected with the liquid outlet pipe 14;

[0062] The valve of the liquid outlet pipe 14 is closed, and the valves between the liquid outlet end of the pump body 16 and the first connecting pipe 403 and between the second connecting pipe 404 and the L-shaped pipe 20 are opened, at this time, the pump body 16 is connected with electricity, the detergent in the liquid outlet pipe 14 is pumped out through the U-shaped pipe 15, and is sent into the tank body 401 through the first connecting pipe 403, so as to facilitate the reflux and reuse of the detergent.

[0063] Further, the side wall of the second connecting pipe 404 is connected with a flushing pipe 17, the flushing pipe 17 is installed with a valve, the first connecting pipe 403 is connected with a foreign matter discharge pipe 18, and the foreign matter discharge pipe 18 is installed with a valve;

[0064] The flushing pipe 17 is connected with an external high-pressure water pump, when flushing, the valves between the liquid outlet end of the pump body 16 and the first connecting pipe 403 and between the second connecting pipe 404 and the L-shaped pipe 20 are closed, the valves of the flushing pipe 17 and the foreign matter discharge pipe 18 are opened, the high-pressure water will reversely flush the filter 402 in the tank body 401, then the flushing impurities are discharged through the foreign matter discharge pipe 18, so as to avoid the blocking phenomenon of the filter 402 after long time use.

[0065] Further, the cross pipe 12 is connected with the spray head 13 by means of bolt connection;

[0066] The cross pipe 12 is threaded at the water outlet position, and the spray head 13 is externally processed with matching threads, and the spray head 13 can be sealed and connected on the cross pipe 12 by means of a Teflon belt, facilitating installation and disassembly.

[0067] The valves used in the embodiment are electric valves, which can be controlled manually or automatically by an external controller.

[0068] In specific use, the working principle of the utility model is as follows:

[0069] Before the tower body 1 works:

[0070] The valve of the liquid outlet pipe 14 is closed, the valve on the flushing pipe 17 and the valve on the impurity discharge pipe 18 are closed, and the valve between the liquid outlet end of the pump body 16 and the first connecting pipe 403 and the valve between the second connecting pipe 404 and the L-shaped pipe 20 are opened.

[0071] In work:

[0072] The mixed gas generated by methanol hydrogen production enters the air inlet pipe 2, at this time the detergent enters through the spray pipe 5, the servo motor 8 is connected to the power supply and works, which drives the vertical pipe 9 to rotate in the circular shell 6 through the sealing bearing 11, so that the cross pipe 12 and the spray head 13 rotate along the tower body 1, and the detergent in the spray pipe 5 enters the circular shell 6 and enters the vertical pipe 9 through the circular hole 10, and is sprayed out through the spray head 13 on the cross pipe 12, forming a water wall with the tower body 1, which can fully contact with the entering gas, thereby enhancing the washing effect, and the treated medium is discharged through the discharge pipe 3 for further treatment.

[0073] In the recycling process:

[0074] The pump body 16 is connected to the power supply and works, and the detergent in the liquid outlet pipe 14 is pumped out through the U-shaped pipe 15 and sent into the tank body 401 through the first connecting pipe 403, and the filter 402 can treat the backflow of the detergent and send it into the tower body 1 again, and the detergent is discharged through the spray disc 19, so as to facilitate the recycling of the detergent;

[0075] In the backwashing process:

[0076] The valve between the liquid outlet end of the pump body 16 and the first connecting pipe 403 and the valve between the second connecting pipe 404 and the L-shaped pipe 20 are closed, the valve on the flushing pipe 17 and the valve on the impurity discharge pipe 18 are opened, and the high-pressure water will backwash the filter 402 in the tank body 401, and then the impurities are discharged through the impurity discharge pipe 18, so as to avoid the blockage of the filter 402 after long-term use.

[0077] Through the effect of the filter 402 in the tank body 401, the device can avoid causing the washing tower spray to be blocked, and in particular solves the problem that in the conventional device, residual impurities in the washing liquid are not treated and cause the washing tower spray to be blocked when used.

[0078] In summary, the methanol-to-hydrogen conversion gas washing tower realizes that residual impurities in the washing liquid can be treated and washing tower spray is avoided from being blocked during the recycling of the washing liquid through a series of innovative designs.

[0079] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited thereto. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the same technical problem and achieve the same technical effect is included in the protection scope of the present application.

Claims

1. A methanol-to-hydrogen conversion gas washing tower, comprising a tower body (1), an inlet pipe (2) connected to the side wall of the tower body (1), a liquid outlet pipe (14) connected to the side wall of the tower body (1), and a discharge pipe (3) connected to the top of the tower body (1), characterized in that: a treatment structure (4) is connected to the liquid outlet pipe (14) through a return pipe connected thereto; the treatment structure (4) comprises: a tank body (401) connected to the return pipe through a first connecting pipe (403) connected to one end thereof, and connected to an L-shaped pipe (20) extending out of the side wall of the tower body (1) through a second connecting pipe (404) connected to the other end thereof, the L-shaped pipe (20) being provided with a spray disc (19) connected thereto and arranged in the tower body (1); a filter (402) fixedly connected in the tank body (401).

2. A methanol-to-hydrogen reforming gas scrubbing column according to claim 1, characterized in that: The number of the filter (402) is three, and the filters (402) are equidistantly distributed in the tank body (401).

3. A methanol-to-hydrogen reforming gas scrubbing column according to claim 1, characterized in that: A spray pipe (5) is arranged in a hole in the tower body (1), the spray pipe (5) is provided with a circular shell (6) connected thereto, a support plate (7) is arranged in the tower body (1), a servo motor (8) is arranged in the support plate (7), a vertical pipe (9) is arranged on the output shaft of the servo motor (8), the vertical pipe (9) is rotatably connected to both sides of the circular shell (6) through sealing bearings (11), not less than four horizontal pipes (12) are connected to the side wall of the vertical pipe (9), not less than four nozzles (13) are connected to the horizontal pipes (12), and not less than six circular holes (10) are arranged in the vertical pipe (9) at the center position of the circular shell (6).

4. A methanol-to-hydrogen reforming gas scrubbing column according to claim 1, characterized in that: The return pipe is composed of a U-shaped pipe (15) and a pump body (16); one end of the U-shaped pipe (15) is connected to the liquid outlet pipe (14), the liquid inlet end of the pump body (16) is connected to the other end of the U-shaped pipe (15), the liquid outlet end of the pump body (16) is connected to the first connecting pipe (403) through a valve, the second connecting pipe (404) is connected to the L-shaped pipe (20) through a valve, and the liquid outlet pipe (14) is provided with a valve.

5. A methanol-to-hydrogen reforming gas scrubber column according to claim 1, characterized by: The side wall of the second connecting pipe (404) is provided with a flushing pipe (17), the flushing pipe (17) is provided with a valve, the first connecting pipe (403) is provided with a foreign matter discharge pipe (18), and the foreign matter discharge pipe (18) is provided with a valve.

6. A methanol-to-hydrogen reforming gas scrubber column according to claim 3, characterized by: The horizontal pipe (12) and the nozzle (13) are connected in a bolted manner.

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