Separation and detection device for hydrogen-rich tail gas of high-pressure separation tank

Abstract

The utility model discloses a separation and detection device for hydrogen-rich tail gas of a high-pressure separation tank, relates to the technical field of gas separation and detection, and aims to solve the problems that in the hydrogen separation and detection process of a separation and detection device used for treating the hydrogen-rich tail gas at present, the extraction purity is difficult to meet the use requirement, and the separation and detection device is easily interfered by the external environment. According to the technical scheme, the hydrogen-rich tail gas separation device comprises a separation device body used for treating hydrogen-rich tail gas, a cold box arranged in the separation device body is used for condensing impurity gas, and a spiral condensation pipeline arranged in the cold box is used for increasing the contact area of the tail gas and the cold box environment. A filtering asbestos plate is arranged above the cold box and used for filtering small-particle floating dust in tail gas, a resistance wire is arranged above the filtering asbestos plate and used for increasing the reaction rate of hydrogen and a separation membrane, a semicircular stop block is arranged in a hydrogen exhaust port and used for keeping the internal environment of a detection cavity sealed, and the use effect is greatly enhanced.

Description

Technical Field

[0001] This utility model relates to the field of gas separation and detection technology, and mainly to a separation and detection device for hydrogen-rich tail gas from a high-precision tank. Background Technology

[0002] my country has many petrochemical and chlor-alkali enterprises, and many factories and production facilities discharge hydrogen-rich tail gas (tail gas with high hydrogen content). This hydrogen-rich tail gas is flammable and explosive, has a large volume, is difficult to transport, and contains certain organic matter. Direct discharge of this gas will pollute the environment. At the same time, hydrogen-rich tail gas also has usable energy and value. Therefore, adopting appropriate technologies to treat hydrogen-rich tail gas is not only beneficial to environmental protection and safety and hygiene, but also can save energy, reduce production costs, and thus improve the economic benefits of enterprises.

[0003] To address the problems of current separation and detection devices used in the treatment of hydrogen-rich tail gas, such as insufficient extraction purity and susceptibility to external environmental interference leading to inaccurate detection data, we propose a separation and detection device for hydrogen-rich tail gas from a high-resolution tank. Utility Model Content

[0004] This invention proposes a separation and detection device for hydrogen-rich tail gas from a high-precision tank, which solves the problems that the purity of extracted hydrogen-rich tail gas is difficult to meet the application requirements, and that it is easily affected by external environmental interference, resulting in inaccurate detection data.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A separation and detection device for hydrogen-rich tail gas from a high-precision separator includes a main body of the separation device. The main body contains a cold box with a spiral condensation pipe inside. Above the cold box are a filter asbestos board and a heat-insulating board. Above the filter asbestos board are a resistance wire and a catalyst. Inside the main body is a filter plate with a hydrogen separation membrane on its surface. Above the filter plate is a detection chamber. Above the main body is a hydrogen outlet with a semi-circular resistance block inside.

[0007] Preferably, an air inlet and an air outlet are provided through the two sides of the main body of the separation device, and an air intake fan is provided inside the air inlet. Hexagonal bolts are symmetrically arranged on the surface of the main body of the separation device, and a hydrogen exhaust port is provided through the top of the main body of the separation device.

[0008] Preferably, a cold box is provided at the bottom of the main body of the separation device, and the cold box is connected to the air inlet through an air intake fan. The air inlet passes through the main body of the separation device and is connected to a spiral condensation pipe. An exchange pipe is fixedly connected to one side of the spiral condensation pipe.

[0009] Preferably, a heat insulation board is fixedly installed above the cold box, and the heat exchange pipe passes through the heat insulation board. A filter asbestos board is installed above the heat insulation board. First fixing grooves are opened on both sides inside the main body of the separation device, and the filter asbestos board cooperates with the first fixing grooves.

[0010] Preferably, catalysts are evenly arranged on both sides inside the main body of the separation device, a resistance wire is fixedly arranged on one side inside the main body of the separation device, and the catalysts and resistance wires are matched with the gas outlet. A control console is arranged on the surface of the main body of the separation device, and the control console is matched with the resistance wire.

[0011] Preferably, the separation device body has a second fixing groove on both sides inside, a filter plate and a hydrogen separation membrane inside, the filter plate cooperates with the second fixing groove, and the hydrogen separation membrane is wrapped around the surface of the filter plate.

[0012] Preferably, the separation device has a detection chamber inside its main body, a detection device is fixedly installed on the surface of the main body of the separation device, and the detection device is matched with the detection chamber. A semi-circular block is installed inside the hydrogen outlet, and a knob is symmetrically arranged on the surface of the hydrogen outlet, and the knob passes through the hydrogen outlet and is fixedly connected to the semi-circular block.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This device, through the action of the air intake fan inside the air inlet located on one side of the main body of the separation device, and in conjunction with the spiral condensation pipe connected to it inside the cold box, accelerates the entry frequency of hydrogen-rich tail gas, increases the contact area of ​​the gas in the cold box environment, prolongs the reaction time, and greatly enhances the separation effect.

[0015] 2. This device, through the replaceable filter asbestos plate set inside the main body of the separation unit, together with the active metal (Fe-Al-C) catalyst and resistance wire set above, and with the control console and discharge port set on the surface of the main body of the separation unit, further reduces the floating dust impurities in the exhaust gas, avoids interference with subsequent reactions, and is conducive to the smooth progress of the reaction.

[0016] 3. This device utilizes replaceable filter plates inside the main body of the separator, along with hydrogen separation membranes (Pd-15%Ag, Pd-15%Cu) alloy membrane material wrapped around them. Combined with the active metal (Fe-Al-C) catalyst and resistance wire located above, and the control console and discharge port on the surface of the main body of the separator, the reaction temperature is maintained at a suitable level.

[0017] The mixed impurity gases are further separated, which accelerates the reaction rate of hydrogen in the tail gas and is beneficial for further separation and purification.

[0018] 4. The device, through the detection chamber opened inside the main body of the separation device, together with the detection device fixed on the surface, and with the action of the semi-circular resistance block inside the upper hydrogen outlet, helps to control the detection time and controllably isolate the interference of the external environment on the detection data, greatly enhancing the effect of use.

[0019] In summary, this utility model, through the cooperation of the separation device and the detection device, accelerates the separation speed of exhaust gas, enhances the separation effect, ensures the accuracy of detection data, solves the problems of inaccurate detection data and difficulty in obtaining purity that meets usage requirements, and greatly enhances the usage effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall side structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the internal mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the spiral condenser pipe mechanism of this utility model.

[0024] Figure 5 This is a schematic diagram of the filter plate mechanism of this utility model.

[0025] Figure 6 This is a schematic diagram of the hydrogen exhaust outlet mechanism of this utility model.

[0026] Numbered in the diagram: 1. Main body of the separation device; 2. Detection device; 3. Control console; 4. Air inlet; 5. Air outlet; 6. Hydrogen exhaust outlet; 7. Hex bolt; 8. Air intake fan; 9. Cold box; 10. Spiral condensation pipe; 11. Exchange pipe; 12. Heat insulation board; 13. Filter asbestos board; 14. Catalyst; 15. Resistance wire; 16. Filter plate; 17. Hydrogen separation membrane; 18. Detection chamber; 19. First fixing groove; 20. Second fixing groove; 21. Knob; 22. Semi-circular resistance block. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Reference Figures 1-6As shown, a separation and detection device for hydrogen-rich tail gas from a high-precision separator includes a separation device body 1. An inlet 4 and an outlet 5 are provided through both sides of the separation device body 1, and an intake fan 8 is installed inside the inlet 4. Hexagonal bolts 7 are symmetrically arranged on the surface of the separation device body 1. A hydrogen outlet 6 is provided through the top of the separation device body 1. A cold box 9 is located at the bottom inside the separation device body 1, and the cold box 9 is connected to the inlet 4 via the intake fan 8. The inlet 4 is connected to a spiral condensation pipe 10 through the separation device body 1. An exchange pipe 11 is fixedly connected to one side of the spiral condensation pipe 10. A heat insulation board 12 is fixedly installed above the cold box 9, and the exchange pipe 11 passes through the heat insulation board 12. Under the action of the intake fan 8 inside the inlet 4 on one side of the separation device body 1, and in conjunction with the spiral condensation pipe 10 connected to it inside the cold box 9, the frequency of hydrogen-rich tail gas entering is accelerated, the contact area of ​​the gas in the cold box 9 environment is increased, the reaction time is extended, and the separation effect is greatly enhanced.

[0029] like Figures 3-5 As shown, a filter asbestos board 13 is installed above the heat insulation board 12. First fixing grooves 19 are opened on both sides of the interior of the separation device body 1, and the filter asbestos board 13 cooperates with the first fixing grooves 19. Catalysts 14 are evenly arranged on both sides of the interior of the separation device body 1. A resistance wire 15 is fixedly installed on one side of the interior of the separation device body 1, and the catalyst 14 and resistance wire 15 cooperate with the gas outlet 5. A control console 3 is installed on the surface of the separation device body 1, and the control console 3 cooperates with the resistance wire 15. Second fixing grooves 20 are provided on both sides of the interior of the separation device body 1. A filter plate 16 and a hydrogen separation membrane 17 are installed inside the separation device body 1, and the filter plate 16 cooperates with the second fixing groove 20. The hydrogen separation membrane 17 is wrapped around the surface of the filter plate 16. A replaceable filter asbestos board 13 is installed inside the separation device body 1. In conjunction with the active metal (Fe-Al-C) catalyst 14 and resistance wire 15 installed above, and with the control console 3 and gas outlet 5 installed on the surface of the separation device body 1, the floating dust impurities in the tail gas are further reduced, avoiding interference with subsequent reactions and facilitating the smooth progress of the reaction. At the same time, the replaceable filter plate 16 installed inside the separation device body 1, the hydrogen separation membrane 17 (Pd-15%Ag, Pd-15%Cu) alloy membrane material wrapped on it, the active metal (Fe-Al-C) catalyst 14 and resistance wire 15 installed above, and the control console 3 and gas outlet 5 installed on the surface of the separation device body 1, make the reaction temperature reach a suitable level, further separate the mixed impurity gases, accelerate the reaction rate of hydrogen in the tail gas, and facilitate further separation and purification.

[0030] like Figure 4As shown, a detection chamber 18 is provided inside the main body 1 of the separation device. A detection device 2 is fixedly installed on the surface of the main body 1 of the separation device, and the detection device 2 is matched with the detection chamber 18. A semi-circular block 22 is provided inside the hydrogen outlet 6. A knob 21 is symmetrically arranged on the surface of the hydrogen outlet 6, and the knob 21 passes through the hydrogen outlet 6 and is fixedly connected to the semi-circular block 22. The detection chamber 18 inside the main body 1 of the separation device, together with the detection device 2 fixedly installed on the surface, under the action of the semi-circular block 22 inside the upper hydrogen outlet 6, is conducive to controlling the detection time and controllably isolating the interference of the external environment on the detection data, thus greatly enhancing the effect of use.

[0031] Working principle: During use, the hydrogen-rich exhaust gas to be treated enters the cold box 9 through the air inlet 4. With the assistance of the air intake fan 8 inside the air inlet 4, the gas enters the cold box 9. It then connects to the spiral condensation pipe 10 of the main body 1 of the separation device, causing impurities in the mixed gas with a boiling point higher than hydrogen to condense and remain in the pipe, completing the first stage of exhaust gas separation. Subsequently, with the assistance of the exchange pipe 11 through the heat insulation plate 12, the hydrogen-rich exhaust gas comes into contact with the filter asbestos plate 13 mounted on the first fixed tank 19 to filter particulate dust. Simultaneously, the filtered hydrogen-rich exhaust gas, under the action of the catalyst 14 on both sides and the resistance wire 15 on one side, and with the assistance of the control panel 3 on the surface, is in a state of active flow. Under suitable reaction conditions and temperature, the less dense hydrogen gas in the hydrogen-rich tail gas comes into contact with the filter plate 16, which is covered by a hydrogen separation membrane 17 and mounted on the outer surface of the second fixed tank 20, to achieve further separation of hydrogen. At this time, the separated impurity gas is discharged through the outlet 5. The gas in the detection chamber 18 is then sealed in a relatively stable state by the semi-circular resistance block 22, which is located in the hydrogen outlet 6 above the main body 1 of the separation device and cooperates with the knob 21. With the cooperation of the detection device 2 located outside the main body 1 of the separation device, the degree of separation of the hydrogen-rich tail gas in the detection chamber 18 is detected. When the appropriate requirements are met, the knob 21 is rotated to collect the hydrogen.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A separation and detection device for high-pressure tank hydrogen-rich tail gas, comprising a separation device main body (1), characterized in that, The separation device body (1) is provided with a cold box (9) inside, the cold box (9) is provided with a spiral condensing pipeline (10) inside, the cold box (9) is provided with a filter asbestos board (13) and a heat insulation board (12) above, the filter asbestos board (13) is provided with a resistance wire (15) and a catalyst (14) above, the separation device body (1) is provided with a filter plate (16) inside, the filter plate (16) is provided with a hydrogen separation membrane (17) on the surface, the filter plate (16) is provided with a detection cavity (18) above, the separation device body (1) is provided with a hydrogen outlet (6) above, and the hydrogen outlet (6) is provided with a semicircular resistance block (22) inside.

2. The device for separating and detecting hydrogen-rich tail gas of a high-pressure tank according to claim 1, characterized in that, The separation device body (1) is provided with an air inlet (4) and an air outlet (5) on both sides, and the air inlet (4) is provided with an air inlet fan (8) inside; the separation device body (1) is provided with a hexagonal bolt (7) on the surface; the separation device body (1) is provided with a hydrogen outlet (6) on the top.

3. The device for separating and detecting hydrogen-rich tail gas according to claim 1, characterized in that, The separation device body (1) is provided with a cold box (9) inside, and the cold box (9) is matched with the air inlet (4) through the air inlet fan (8); the air inlet (4) is connected with a spiral condensing pipeline (10) penetrating the separation device body (1); and the spiral condensing pipeline (10) is fixedly connected with an exchange pipeline (11) on one side.

4. The device for separating and detecting hydrogen-rich tail gas according to claim 3, characterized in that, The cold box (9) is fixedly provided with a heat insulation board (12) above, the exchange pipeline (11) penetrates the heat insulation board (12), the heat insulation board (12) is provided with a filter asbestos board (13) above, and the separation device body (1) is provided with a first fixed groove (19) on both sides inside; and the filter asbestos board (13) is matched with the first fixed groove (19).

5. The device for separating and detecting hydrogen-rich tail gas according to claim 1, wherein, The separation device body (1) is provided with a catalyst (14) on both sides inside, and a resistance wire (15) is fixedly arranged on one side of the separation device body (1); the catalyst (14) and the resistance wire (15) are matched with the air outlet (5); and the separation device body (1) is provided with a control table (3) on the surface, and the control table (3) is matched with the resistance wire (15).

6. The device for separating and detecting hydrogen-rich tail gas according to claim 1, wherein, The separation device body (1) is provided with a second fixed groove (20) on both sides inside, and is provided with a filter plate (16) and a hydrogen separation membrane (17) inside; the filter plate (16) is matched with the second fixed groove (20), and the hydrogen separation membrane (17) is wrapped on the surface of the filter plate (16).

7. The device for separating and detecting hydrogen-rich tail gas according to claim 1, characterized in that, The separation device body (1) is provided with a detection cavity (18) inside, and is provided with a detection device (2) on the surface; the detection device (2) is matched with the detection cavity (18); the hydrogen outlet (6) is provided with a semicircular resistance block (22) inside, and is provided with a knob (21) on the surface; and the knob (21) is fixedly connected with the semicircular resistance block (22) penetrating the hydrogen outlet (6).

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