Material recovery device for gas-liquid separation tank of hydrogen compressor

Abstract

The utility model discloses a material recovery device for a gas-liquid separation tank of a hydrogen compressor, which belongs to the technical field of chemical production equipment and comprises a buffer tank body, a separation device is mounted at the bottom of the buffer tank body and comprises a funnel shell fixed at the bottom of the buffer tank, and a floating body part is arranged in the funnel shell. The bottom of the floating body part is attached to the inner wall of the funnel shell, a fluid groove is formed in the bottom of the floating body part, the top end of the fluid groove extends to the side wall of the floating body part, a supplementing device is arranged on the floating body part, the bottom of the funnel shell is communicated with a liquid pump, the supplementing device comprises a supplementing cylinder, a containing groove is formed in the top of the floating body part, and the supplementing cylinder slides in the containing groove. According to the liquid material recycling device, liquid materials can be recycled in a centralized mode, the liquid material recycling device can be automatically closed when liquid is insufficient, gas suction is avoided, the liquid material recycling device is more flexible and convenient to use, only the liquid materials are recycled, and the recycling efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to a material recovery device for a hydrogen compressor gas-liquid separator, belonging to the technical field of chemical production equipment. Background Technology

[0002] In the production of the low-toxicity herbicide pendimethalin, the main functions of the hydrogen compressor include: promoting the reaction and improving its selectivity in the catalytic hydrogenation process, ensuring product purity and quality; maintaining the pressure of the reaction system, providing a stable environment for the reaction and ensuring equipment safety; and enabling hydrogen recycling, reducing production costs and environmental impact.

[0003] The production process includes a dehydrogenation step, where 2-pentanone is dehydrogenated to produce 2-pentanol and hydrogen. There is also a hydrogenation step, where isoprene is hydrogenated to produce n-pentene and 2-pentene. Therefore, the hydrogen from the dehydrogenation step can be recovered and used in the hydrogenation step.

[0004] For example, application number CN201520504476.9 discloses a styrene block copolymer hydrogenation tail gas recovery device, including a cooling water condenser, a gas-liquid separator, a cryogenic water condenser, a hydrogen compressor, and a condensate pump; the tail gas discharge port of the hydrogenation reactor and the tail gas discharge port of the hydrogenated adhesive discharge buffer tank are connected to the material inlet of the cooling water condenser, the material outlet of the cooling water condenser is connected to the middle of the gas-liquid separator, the upper gas phase outlet of the gas-liquid separator is connected to the cryogenic water condenser, the gas phase outlet of the cryogenic water condenser is connected to the inlet of the hydrogen compressor; the liquid phase outlet of the cryogenic water condenser is connected to the gas-liquid separator, the lower liquid phase outlet of the gas-liquid separator is connected to the condensate pump, and the condensate pump is connected to the condensation system.

[0005] The aforementioned document reduces the consumption of hydrogen and solvents by recovering hydrogen, thereby reducing the emission of air pollutants, which is therefore essential. Hence, this utility model is proposed to further improve the recovery efficiency. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a hydrogen compressor gas-liquid separator material recovery device. This device can centrally recover liquid materials and automatically shut off when the liquid level is low, avoiding the need for gas extraction. It is more flexible and convenient to use, and only recovers liquid materials, thus improving recovery efficiency.

[0007] A material recovery device for a hydrogen compressor gas-liquid separator is disclosed. During the production process, hydrogen recovered from the dehydrogenation process enters the buffer tank body and then enters the hydrogen compressor for compression. Pentanol has a high boiling point and is liquefied after the third and fourth stage compressions. It is then stored in the gas-liquid separator. The gas-liquid separator is connected to the buffer tank body through a pipeline. The liquid is then pressurized into the dehydrogenation buffer tank. At this time, hydrogen is still present in the buffer tank body.

[0008] The exhaust pipe is pumped to the dehydrogenation process, and the pentanol material is recovered and distilled in the dehydrogenation process. The gas from the exhaust pipe can be recycled and reused.

[0009] The device includes a buffer tank body, a separation device installed at the bottom of the buffer tank body, a funnel shell fixed to the bottom of the buffer tank, a float component inside the funnel shell, the bottom of the float component being in contact with the inner wall of the funnel shell, a fluid channel being formed at the bottom of the float component, the top of the fluid channel extending to the side wall of the float component, a replenishment device being provided on the float component, and a liquid pump being connected to the bottom of the funnel shell.

[0010] The replenishment device includes a replenishment cylinder. The top of the float is provided with a receiving groove. The replenishment cylinder slides in the receiving groove. A buffer spring is fixed between the top of the replenishment cylinder and the bottom of the receiving groove. A through channel is provided at the bottom of the receiving groove. The bottom end of the through channel passes through the bottom of the float. The buffer spring can lift the replenishment cylinder.

[0011] A front-end pipe is provided between the inlet of the liquid pump and the bottom of the funnel shell, and a rear-end pipe is provided on the outlet of the liquid pump. A circulation device is provided between the front-end pipe and the rear-end pipe. The circulation device is used to replenish the liquid material into the front-end pipe when there is no liquid material.

[0012] The circulation device includes a circulation pipe, one end of which is connected to the front end pipe, and the other end of which is connected to the rear end pipe by bending. A platform base is fixed on the circulation pipe.

[0013] A telescopic column is slidably engaged on the platform base. One end of the telescopic column extends into the circulation pipe and is fixed with a blocking block. The blocking block is positioned between the circulation pipe and the front end pipe.

[0014] One end of the telescopic column extends outside the circulation pipe, and an end cap is fixed to one end of the telescopic column. A limit spring is connected between the end cap and the platform base. When there is no liquid material, the limit spring can be compressed.

[0015] The rear end pipe is connected to a stabilizing component, which includes a stabilizing tank. The bottom of the stabilizing pipe is provided with a discharge port, and the top of the stabilizing pipe is provided with an exhaust pipe.

[0016] A stabilizing motor is fixed on the stabilizing tank. The output shaft of the stabilizing motor extends into the stabilizing tank, and a central rod is fixed on the output shaft of the stabilizing motor. A stabilizing support rod is fixed on the outer wall of the central rod. A float switch is installed inside the exhaust pipe. An air extraction device needs to be installed outside the exhaust pipe. When the float switch is triggered by liquid, the exhaust pipe stops extracting air.

[0017] The beneficial effects of this utility model are as follows: This recycling device can centrally recycle liquid materials and can automatically shut off when the liquid is insufficient to avoid gas extraction. It is more flexible and convenient to use. It only recycles liquid materials, which improves recycling efficiency. Moreover, after the initial collection of liquid materials, it can be stabilized again in a stabilizing tank and can also remove air bubbles, thereby improving recycling efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the liquid pump structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the supplementary device structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the circulation device structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the stable component structure of this utility model.

[0023] In the diagram: 1. Buffer tank body; 2. Separation device; 201. Funnel shell; 202. Float component; 203. Fluid tank; 3. Replenishment device; 301. Replenishment cylinder; 302. Buffer spring; 303. Through channel; 4. Liquid pump; 401. Front end pipe; 402. Rear end pipe; 5. Circulation device; 501. Circulation pipeline; 502. Platform base; 503. Telescopic column; 504. Blocking block; 505. Limiting spring; 6. Stabilizing component; 601. Stabilizing tank; 602. Discharge port; 603. Exhaust pipe; 604. Stabilizing motor; 605. Center rod; 606. Stabilizing support rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 As shown, a material recovery device for a hydrogen compressor gas-liquid separator includes a buffer tank body 1. A separation device 2 is installed at the bottom of the buffer tank body 1. The separation device 2 includes a funnel shell 201 fixed to the bottom of the buffer tank. A float 202 is provided inside the funnel shell 201. The bottom of the float 202 is in contact with the inner wall of the funnel shell 201. A fluid channel 203 is opened at the bottom of the float 202. The top of the fluid channel 203 extends to the side wall of the float 202. A replenishment device 3 is provided on the float 202. A liquid pump 4 is connected to the bottom of the funnel shell 201.

[0026] The replenishment device 3 includes a replenishment cylinder 301. The top of the float 202 is provided with a receiving groove. The replenishment cylinder 301 slides in the receiving groove. A buffer spring 302 is fixed between the top of the replenishment cylinder 301 and the bottom of the receiving groove. A through channel 303 is provided at the bottom of the receiving groove. The bottom end of the through channel 303 passes through the bottom of the float 202. The buffer spring 302 can lift the replenishment cylinder 301.

[0027] A front end pipe 401 is provided between the inlet of the liquid pump 4 and the bottom of the funnel shell 201, and a rear end pipe 402 is provided on the outlet of the liquid pump 4. A circulation device 5 is provided between the front end pipe 401 and the rear end pipe 402. The circulation device 5 is used to replenish the liquid material into the front end pipe 401 when there is no liquid material.

[0028] The circulation device 5 includes a circulation pipe 501. One end of the circulation pipe 501 is connected to the front end pipe 401, and the other end is connected to the rear end pipe 402 by bending. A platform base 502 is fixed on the circulation pipe 501. A telescopic column 503 is slidably engaged on the platform base 502. One end of the telescopic column 503 extends into the circulation pipe 501 and is fixed with a blocking block 504. The blocking block 504 is positioned between the circulation pipe 501 and the front end pipe 401. One end of the telescopic column 503 extends out of the circulation pipe 501 and is fixed with an end cap. A limit spring 505 is connected between the end cap and the platform base 502. When there is no liquid material, the limit spring 505 can be compressed.

[0029] The rear pipe 402 is connected to a stabilizing component 6, which includes a stabilizing tank 601. The bottom of the stabilizing pipe is provided with a discharge port 602, and the top of the stabilizing pipe is provided with an exhaust pipe 603. A stabilizing motor 604 is fixed on the stabilizing tank 601. The output shaft of the stabilizing motor 604 extends into the stabilizing tank 601, and a central rod 605 is fixed on the output shaft of the stabilizing motor 604. A stabilizing support rod 606 is fixed on the outer wall of the central rod 605. A float switch is provided inside the exhaust pipe 603. An air extraction device needs to be installed outside the exhaust pipe 603. When the float switch is triggered by liquid, the exhaust pipe 603 stops extracting air.

[0030] This recycling device can centrally recycle liquid materials and automatically shuts off when the liquid level is low to avoid gas extraction, making it more flexible and convenient to use. It only recycles liquid materials, improving recycling efficiency. After the initial collection of liquid materials, it can be stabilized again in the stabilizing tank 601, which can also remove air bubbles, further improving recycling efficiency. During use, when the liquid level in the buffer tank drops, the float 202 descends and blocks the funnel shell 201. To prevent the float 202 from being positioned too low, a limiting frame is installed at the bottom of the buffer tank body 1 to restrict its position. After the float 202 blocks the funnel shell 201, the replenishing cylinder 301 can compress the buffer spring 302, allowing the replenishing cylinder 301 to fill part of the space. After further suction, the blocking block 504 is pulled into the front end pipe 401, and then the liquid material is replenished through the circulation pipe 501. Inside the stabilizing tank 601, the stabilizing motor 604 can drive the central rod 605 to rotate, thereby assisting in the removal of air bubbles in the precipitated liquid material.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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 material recovery device for a hydrogen compressor gas-liquid separator, comprising a buffer tank body (1), characterized in that: A separation device (2) is installed at the bottom of the buffer tank body (1). The separation device (2) includes a funnel shell (201) fixed at the bottom of the buffer tank. A float (202) is provided inside the funnel shell (201). The bottom of the float (202) is in contact with the inner wall of the funnel shell (201). A fluid channel (203) is provided at the bottom of the float (202). The top of the fluid channel (203) extends to the side wall of the float (202). A replenishment device (3) is provided on the float (202). A liquid pump (4) is connected to the bottom of the funnel shell (201).

2. The material recovery device for the hydrogen compressor gas-liquid separator as described in claim 1, characterized in that: The replenishment device (3) includes a replenishment cylinder (301), the top of the float (202) is provided with a receiving groove, the replenishment cylinder (301) slides in the receiving groove, a buffer spring (302) is fixed between the top of the replenishment cylinder (301) and the bottom of the receiving groove, and a through channel (303) is provided at the bottom of the receiving groove, the bottom end of the through channel (303) passes through the bottom of the float (202).

3. The material recovery device for the hydrogen compressor gas-liquid separator as described in claim 2, characterized in that: A front end pipe (401) is provided between the inlet of the liquid pump (4) and the bottom of the funnel shell (201), and a rear end pipe (402) is provided on the outlet of the liquid pump (4). A circulation device (5) is provided between the front end pipe (401) and the rear end pipe (402).

4. The material recovery device for the gas-liquid separator of the hydrogen compressor as described in claim 3, characterized in that: The circulation device (5) includes a circulation pipe (501), one end of which is connected to the front end pipe (401), and the other end is connected to the rear end pipe (402) by bending. A platform base (502) is fixed on the circulation pipe (501).

5. The material recovery device for the hydrogen compressor gas-liquid separator as described in claim 4, characterized in that: A telescopic column (503) is slidably engaged on the platform base (502). One end of the telescopic column (503) extends into the circulation pipe (501) and is fixed with a blocking block (504). The blocking block (504) is positioned between the circulation pipe (501) and the front end pipe (401).

6. The material recovery device for the hydrogen compressor gas-liquid separator as described in claim 5, characterized in that: One end of the telescopic column (503) extends outside the circulation pipe (501), and one end of the telescopic column (503) is fixed with an end cap. A limit spring (505) is connected between the end cap and the platform base (502).

7. The material recovery device for the gas-liquid separator of the hydrogen compressor as described in claim 3, characterized in that: The rear end pipe (402) is connected to a stabilizing component (6), which includes a stabilizing tank (601), a discharge port (602) at the bottom of the stabilizing tank, and an exhaust pipe (603) at the top of the stabilizing tank.

8. The material recovery device for the gas-liquid separator of the hydrogen compressor as described in claim 7, characterized in that: A stabilizing motor (604) is fixed on the stabilizing tank (601). The output shaft of the stabilizing motor (604) extends into the stabilizing tank (601), and a central rod (605) is fixed on the output shaft of the stabilizing motor (604). A stabilizing support rod (606) is fixed on the outer wall of the central rod (605). A float switch is provided inside the exhaust pipe (603).

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