A hydrogenation unit containing a sour gas recovery unit

Abstract

The utility model relates to a recovery device especially relates to a hydrogenation device sulfur-containing dry gas recovery device. The utility model provides such a hydrogenation device sulfur-containing dry gas recovery device, including installation frame, gravity settling tank, cyclone separator, feed pipe etc. ; The gravity settling tank and cyclone separator are equipped in the installation frame, the gravity settling tank right side is equipped with the feed pipe, the gravity settling tank top has opened the first gas outlet, the gravity settling tank bottom is equipped with the connecting pipe, the one end of connecting pipe far away from the gravity settling tank is connected with water pump, water pump water delivery end is connected in cyclone separator rear side top. The utility model gravity settling tank separates big granule droplet preferentially, and cyclone separator further captures tiny droplet, and double effect significantly promotes the liquid efficiency of removing, satisfies the processing demand of large -scale, high water content sulfur-containing dry gas.

Description

Technical Field

[0001] This utility model relates to a recovery device, and more particularly to a sulfur-containing dry gas recovery device for a hydrogenation unit. Background Technology

[0002] Chemical production processes often discharge sulfur-containing waste gas, such as from power plant cooling towers. This waste gas contains sulfur dioxide, which, if released into the air untreated, will cause environmental pollution, necessitating desulfurization treatment. Currently, the industry employs several conventional technologies for deliquescence of sulfur-containing dry gas. One such technology is gravity sedimentation, which uses gravity to separate the liquid from the gas. While simple to operate, this method has low deliquescence efficiency and is unsuitable for handling large-scale, high-moisture-content sulfur-containing dry gas. Another method is cryogenic condensation, which uses temperature reduction to condense and separate water vapor; however, this method is energy-intensive, requires stringent insulation and refrigeration systems, and has high operating costs.

[0003] Existing deliquencing technologies generally suffer from low deliquencing efficiency, high cost, and poor adaptability, failing to meet the demand for efficient, economical, and large-scale deliquencing of sulfur-containing dry gas in hydrogenation units. Summary of the Invention

[0004] In order to overcome the shortcomings of existing deliquescence technology for sulfur-containing dry gas, which cannot meet the requirements of efficient, economical and stable deliquescence treatment of sulfur-containing dry gas in hydrogenation units, this utility model can provide a sulfur-containing dry gas recovery device for hydrogenation units.

[0005] The technical solution is as follows: A sulfur-containing dry gas recovery device for a hydrogenation unit includes a mounting frame, a gravity settling tank, a hydrocyclone separator, a feed pipe, a connecting pipe, a water pump, and a discharge pipe. The mounting frame houses the gravity settling tank and the hydrocyclone separator. The feed pipe is located on the right side of the gravity settling tank. A first gas outlet is opened at the top of the gravity settling tank. A connecting pipe is located at the bottom of the gravity settling tank. The end of the connecting pipe away from the gravity settling tank is connected to the water pump. The water delivery end of the water pump is connected to the upper rear side of the hydrocyclone separator. A second gas outlet is opened at the top of the hydrocyclone separator. A discharge pipe is located at the bottom of the hydrocyclone separator.

[0006] As an improvement to the above solution, it also includes a flow sensor and a control panel. The flow sensor is located on the outside of the connecting pipe, and the control panel is located on the front side of the mounting bracket. The flow sensor and the drive device built into the cyclone separator are both electrically connected to the control panel.

[0007] As an improvement to the above scheme, a three-way valve is also included. A three-way valve is provided between the feed pipe and the gravity settling tank. An actuator is provided on the top of the three-way valve. The bypass outlet of the three-way valve is connected to a torch. The gravity settling tank has built-in infrared sensors and hydrogen sensors. The infrared sensors, hydrogen sensors and actuators are all electrically connected to the control panel.

[0008] As an improvement to the above solution, a pressure relief valve is provided at the connection end of the first and second air outlets, and the pressure relief valve is electrically connected to the control panel.

[0009] As an improvement to the above solution, the inner wall of the gravity settling tank is provided with an anti-corrosion coating.

[0010] As an improvement to the above solution, the cyclone separator is made of wear-resistant stainless steel.

[0011] This utility model features a gravity settling tank that prioritizes the separation of large droplets, while a cyclone separator further captures tiny droplets. This dual action significantly improves the liquid removal efficiency, meeting the needs of large-scale processing of sulfur-containing dry gas with high water content. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is an enlarged view of the feed pipe and three-way valve of this utility model.

[0014] Figure 3 This is a structural diagram of the back of the present invention.

[0015] The labels in the diagram are as follows: 1. Mounting bracket, 2. Gravity settling tank, 3. Hydrocyclone separator, 4. First air outlet, 5. Feed pipe, 6. Three-way valve, 7. Connecting pipe, 8. Flow sensor, 9. Water pump, 10. Second air outlet, 11. Discharge pipe, 12. Control panel. Detailed Implementation

[0016] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0017] A sulfur-containing dry gas recovery device for a hydrogenation unit, such as Figures 1-3As shown, the system includes a mounting frame 1, a gravity settling tank 2, a hydrocyclone separator 3, a feed pipe 5, a connecting pipe 7, a water pump 9, and a discharge pipe 11. The mounting frame 1 houses the gravity settling tank 2 and the hydrocyclone separator 3. The inner wall of the gravity settling tank 2 is coated with an anti-corrosion coating to improve the tank's corrosion resistance and extend its service life. The hydrocyclone separator 3 is made of wear-resistant stainless steel to enhance its resistance to wear from particles in high-speed airflow. The feed pipe 5 is located on the right side of the settling tank 2. The top of the gravity settling tank 2 has a first air outlet 4. The bottom of the gravity settling tank 2 has a connecting pipe 7. The end of the connecting pipe 7 away from the gravity settling tank 2 is connected to the water pump 9. The water supply end of the water pump 9 is connected to the upper rear side of the hydrocyclone separator 3. The top of the hydrocyclone separator 3 has a second air outlet 10. Both the first air outlet 4 and the second air outlet 10 are equipped with pressure relief valves, which are electrically connected to the control panel 12. The bottom of the hydrocyclone separator 3 has a discharge pipe 11.

[0018] like Figure 1 and Figure 3 As shown, it also includes a flow sensor 8 and a control panel 12. The flow sensor 8 is located on the outside of the connecting pipe 7, and the control panel 12 is located on the front side of the mounting bracket 1. The flow sensor 8 and the built-in drive device of the cyclone separator 3 are both electrically connected to the control panel 12. The flow sensor 8 monitors the liquid flow rate in the connecting pipe 7 in real time and transmits the data to the control panel 12. The control panel 12 dynamically adjusts the drive device of the cyclone separator 3 according to the flow signal to achieve precise control of the liquid separation process and improve the system operating efficiency.

[0019] like Figure 2 As shown, it also includes a three-way valve 6. A three-way valve 6 is provided between the feed pipe 5 and the gravity settling tank 2. An actuator is provided on the top of the three-way valve 6. The bypass outlet of the three-way valve 6 is connected to the flare. The gravity settling tank 2 has built-in infrared sensors and hydrogen sensors. The infrared sensors, hydrogen sensors and actuators are all electrically connected to the control panel 12. The infrared sensors and hydrogen sensors continuously detect the volume fraction of methane and hydrogen in the gravity settling tank 2. When the volume fraction of methane and hydrogen is lower than the preset value, the control panel 12 controls the actuator to rotate the valve core of the three-way valve 6, open the bypass outlet, and cut dry gas into the flare for combustion to ensure the safe operation of the system.

[0020] In use, sulfur-containing dry gas is fed into gravity settling tank 2 through feed pipe 5, and preliminary separation is achieved through gravity settling: large droplets are deposited to the bottom of the tank due to gravity, and the purified gas is discharged from the first outlet 4. Subsequently, the liquid at the bottom of the settling tank is pumped by water pump 9 through connecting pipe 7 to hydrocyclone separator 3. In hydrocyclone separator 3, the sulfur-containing dry gas and liquid mixture is further separated under the action of centrifugal force: tiny droplets are thrown to the wall of the separator and slide down along the conical inner wall, and finally discharged through feed pipe 11; while the purified gas is output from the second outlet 10.

[0021] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A sulfur-containing dry gas recovery device for a hydrogenation unit, characterized in that, It includes a mounting frame (1), a gravity settling tank (2), a cyclone separator (3), a feed pipe (5), a connecting pipe (7), a water pump (9), and a discharge pipe (11). The mounting frame (1) contains a gravity settling tank (2) and a cyclone separator (3). The gravity settling tank (2) has a feed pipe (5) on its right side. The gravity settling tank (2) has a first air outlet (4) at its top. The gravity settling tank (2) has a connecting pipe (7) at its bottom. The end of the connecting pipe (7) away from the gravity settling tank (2) is connected to a water pump (9). The water pump (9) is connected to the upper rear side of the cyclone separator (3). The cyclone separator (3) has a second air outlet (10) at its top. The cyclone separator (3) has a discharge pipe (11) at its bottom.

2. The sulfur-containing dry gas recovery device for a hydrogenation unit as described in claim 1, characterized in that, It also includes a flow sensor (8) and a control panel (12). The flow sensor (8) is located on the outside of the connecting pipe (7), and the control panel (12) is located on the front side of the mounting bracket (1). The flow sensor (8) and the built-in drive device of the cyclone separator (3) are both electrically connected to the control panel (12).

3. The sulfur-containing dry gas recovery device for a hydrogenation unit as described in claim 2, characterized in that, It also includes a three-way valve (6), a three-way valve (6) is provided between the feed pipe (5) and the gravity settling tank (2), an actuator is provided on the top of the three-way valve (6), the bypass outlet of the three-way valve (6) is connected to a torch, the gravity settling tank (2) is equipped with an infrared sensor and a hydrogen sensor, and the infrared sensor, hydrogen sensor and actuator are all electrically connected to the control panel (12).

4. The sulfur-containing dry gas recovery device for a hydrogenation unit as described in claim 3, characterized in that, The first air outlet (4) and the second air outlet (10) are both equipped with pressure relief valves, and the pressure relief valves are electrically connected to the control panel (12).

5. A sulfur-containing dry gas recovery device for a hydrogenation unit as described in claim 4, characterized in that, The inner wall of the gravity settling tank (2) is provided with an anti-corrosion coating.

6. A sulfur-containing dry gas recovery device for a hydrogenation unit as described in claim 5, characterized in that, The cyclone separator (3) is made of wear-resistant stainless steel.

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