A gas recycling device in a raw material gas purification process

Abstract

The utility model relates to gas recovery technical field discloses a raw material gas purification process gas recovery and utilization device, including support base, the heating furnace of support base top and the catalytic reactor of heating furnace inside, the catalytic reactor includes the placement pipe base, the placement pipe base places in the inside of heating furnace, the upper and lower sides of right side of placement pipe base inner wall all are equipped with the positioning slot, the upper and lower sides of the outer wall of the front and back two sides of placement pipe base all are fixedly connected with fixed base. The utility model discloses through push rod control both sides' fixed insertion rod to the back movement, makes fixed block insertion to fixed base, loosens push rod, utilizes fixed spring control fixed insertion rod insertion to fixed insertion hole, realized the assembly of catalytic reactor, in order to facilitate the replacement of internal catalyst, and the assembly method of first adsorption column and second adsorption column is same above, solved the problem that gas recovery device catalyst placement pipe replacement is more troublesome.

Description

Technical Field

[0001] This utility model relates to the field of gas recovery technology, and in particular to a gas recovery and utilization device in the process of raw gas purification. Background Technology

[0002] The abundance of various isotopes in nature remains constant. Carbon is the skeletal element of organic matter and has two stable isotopes, 12C and 13C, with natural abundances of 98.892% and 1.108%, respectively. The production of 13C by low-temperature distillation requires purification of the feed gas to reduce the content of impurities such as H2, O2, and CO that interfere with distillation to below 1 ppm.

[0003] When purifying raw gas, the raw gas needs to be input into different placement pipes. Each placement pipe contains a C0-973 catalyst and a molecular sieve. When the catalyst inside the traditional placement pipe needs to be replaced after a long period of time, the entire placement pipe needs to be disassembled and reinstalled, which is quite troublesome. In addition, the raw gas tanks are usually placed directly next to the heating furnace for gas transmission, which makes them prone to tipping over due to external forces.

[0004] Therefore, a gas recovery and utilization device for the raw gas purification process is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a solution that can address the problems mentioned in the background section.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a gas recovery and utilization device in the process of raw gas purification, including a support base, a heating furnace located on top of the support base, and a catalytic reactor located inside the heating furnace. The catalytic reactor includes a placement tube base, which is placed inside the heating furnace. Positioning slots are provided on the upper and lower sides of the right side of the inner wall of the placement tube base. Fixed bases are fixedly connected to the upper and lower sides of the front and rear outer walls of the placement tube base. Fixed rods are slidably connected to the upper and lower sides inside each fixed base. Fixed springs are connected to the opposite sides of the two fixed rods. The fixed rods are elastically connected to the fixed bases through the fixed springs. A push rod is fixedly connected to the front of the fixed rod.

[0007] A further feature of this invention is that: a placement tube body is provided on the left side of the placement tube base; positioning blocks adapted to positioning slots are fixedly connected to the upper and lower sides of the right side of the placement tube body; filter plates are fixedly connected to the upper and lower side walls of the placement tube body; fixing blocks are fixedly connected to the upper and lower sides of the front and rear outer walls of the placement tube body; and fixing holes adapted to fixing rods are provided on the upper and lower sides of each fixing block.

[0008] By adopting the above technical solution, under the elastic action of the fixed spring 705, the fixed insertion rod 704 is pushed into the fixed insertion hole 7010, so that the fixed block 709 is fixed, and the assembly of the catalytic reactor 7 is completed.

[0009] A further feature of this invention is that the support base includes a support frame, an observation window is fixedly connected to the front side wall of the support frame, a hydraulic cylinder is fixedly connected to the bottom rear of the support frame, a fixed column is fixedly connected to the top rear of the support frame, and a movable block is fixedly connected to the output end of the hydraulic cylinder, with the movable block being slidably connected to the fixed column.

[0010] A further feature of this invention is that: adjusting plates are movably connected to both the front and rear sides of the movable block, one end of the two adjusting plates is movably connected to the movable block, and the other end of the two adjusting plates is movably connected to a first clamping plate.

[0011] By adopting the above technical solution, the raw material gas tank 3 is placed between two first clamping plates 106. The hydraulic cylinder 103 is started, pulling the movable block 104 to move vertically. Since one end of the two adjusting plates 105 is movably connected to the movable block 104, and the other end of the two adjusting plates 105 is movably connected to the first clamping plate 106, the two adjusting plates 105 move down with the movable block 104, causing the first clamping plate 106 to move closer to each other, thus clamping and fixing the raw material gas tank 3.

[0012] A further feature of this invention is that the heating furnace includes a protective outer shell, which is fixedly connected to the top of a support frame. A support plate is fixedly connected inside the protective outer shell, and the support plate has several placement slots inside, one of which is adapted to the catalytic reactor.

[0013] A further feature of this invention is that: a second clamping plate is provided on both the left and right sides of each of the placement slots; an adjusting gear is fixedly connected to the rear of the two second clamping plates; the two second clamping plates are movably connected to the support plate via a shaft; and a movable tooth block is meshed with the rear of each of the two adjusting gears.

[0014] A further feature of this invention is that a lead screw slider is fixedly connected to the rear of each of the two movable tooth blocks, and the two lead screw sliders are internally threaded with the same bidirectional lead screw, the left side of which is fixedly connected to the output end of the drive motor.

[0015] By adopting the above technical solution, the catalytic reactor 7 is placed in the corresponding placement slot 203. The drive motor 209 is started to drive the bidirectional lead screw 208 to rotate. Under the action of the thread of the bidirectional lead screw 208, the lead screw sliders 207 on both sides drive the movable tooth blocks 206 to move closer to each other. Since the adjusting gear 205 meshes with the movable tooth blocks 206, as the movable tooth blocks 206 move, the adjusting gears 205 on both sides rotate, driving the second clamping plates 204 on both sides to move closer to each other, thereby clamping and fixing the catalytic reactor 7.

[0016] A further feature of this invention is that a raw material gas tank is placed between the two first clamping plates, a gas delivery pipe is connected to the top of the raw material gas tank, the raw material gas tank is connected to a rotor flow meter through the gas delivery pipe, and the rotor flow meter is connected to a catalytic reactor through the gas delivery pipe.

[0017] The present invention is further configured such that: the catalytic reactor is connected to the first adsorption column and the second adsorption column respectively through a gas supply pipe; the first adsorption column and the second adsorption column have the same structure as the catalytic reactor; the first adsorption column and the second adsorption column are adapted to the remaining placement tank; a pressure gauge is connected between the first adsorption column and the second adsorption column through a gas supply pipe; the right side of the pressure gauge is connected to a vacuum pump through a gas supply pipe; the interior of the catalytic reactor is filled with CO-973 type catalyst; and the interiors of the first adsorption column and the second adsorption column are both filled with molecular sieves.

[0018] A further feature of this invention is that the right sides of the first and second adsorption columns are connected to a liquid sealing device via gas supply pipes, and the right side of the liquid sealing device is connected to a dew point meter, a CO2 analyzer, and a trace oxygen analyzer via gas supply pipes, respectively. Each component is connected to a switch valve via a gas supply pipe.

[0019] The beneficial effects of this utility model are: 1. This utility model controls the fixed inserts on both sides to move backward by a push rod, so that the fixed block is inserted into the fixed base. When the push rod is released, the fixed insert is inserted into the fixed hole by a fixed spring, thus realizing the assembly of the catalytic reactor, which facilitates the replacement of the internal catalyst. The assembly method of the first adsorption column and the second adsorption column is the same as above, which solves the problem that the replacement of the catalyst placement tube of the gas recovery device is relatively troublesome.

[0020] 2. This utility model uses a drive motor to control the movable toothed blocks to move closer to each other, and uses the adjusting gears on both sides to control the second clamping plates to move closer to each other, thereby achieving the clamping and fixing of the catalytic reactor. The fixing method of the first adsorption column and the second adsorption column is the same as above, which solves the problem of fixing the catalytic reactor, the first adsorption column and the second adsorption column inside the heating furnace.

[0021] 3. This utility model uses a hydraulic cylinder to control the first clamping plates on both sides to move closer to each other, thereby clamping and fixing the raw material gas tank and solving the problem that the raw material gas tank is easy to tip over when placed on the ground. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the internal structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the internal structure of the support plate of this utility model; Figure 4 This is a three-dimensional structural diagram of the internal structure of the catalytic reactor of this utility model; Figure 5 This is a three-dimensional structural diagram of the fixing mechanism of this utility model; Figure 6 This is a process flow diagram of the gas purification test of this utility model.

[0024] In the diagram: 1. Support base; 101. Support frame; 102. Observation window; 103. Hydraulic cylinder; 104. Movable block; 105. Adjusting plate; 106. First clamping plate; 2. Heating furnace; 201. Protective shell; 202. Supporting plate; 203. Placement slot; 204. Second clamping plate; 205. Adjusting gear; 206. Movable gear block; 207. Lead screw and slider; 208. Double-acting lead screw; 209. Drive motor; 3. Raw material gas tank; 4. Gas transmission pipe; 5. Switch valve; 6. Rotor flow rate 7. Catalytic reactor; 701. Placement tube base; 702. Positioning slot; 703. Fixed base; 704. Fixed insertion rod; 705. Fixed spring; 706. Push rod; 707. Placement tube body; 708. Filter plate; 709. Fixed block; 7010. Fixed insertion hole; 7011. Positioning insertion block; 8. First adsorption column; 9. Second adsorption column; 10. Pressure gauge; 11. Vacuum pump; 12. Liquid sealing device; 13. Dew point meter; 14. CO2 analyzer; 15. Trace oxygen analyzer. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0026] Please see Figures 1-6 This utility model provides a gas recovery and utilization device in the process of raw gas purification, including a support base 1, a heating furnace 2 located on top of the support base 1, and a catalytic reactor 7 located inside the heating furnace 2.

[0027] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the catalytic reactor 7 includes a tube base 701, which is placed inside the heating furnace 2. Positioning slots 702 are provided on the upper and lower sides of the right side of the inner wall of the tube base 701. Fixed bases 703 are fixedly connected to the upper and lower sides of the front and rear outer walls of the tube base 701. Fixed rods 704 are slidably connected to the upper and lower sides inside each fixed base 703. Fixed springs 705 are connected to the opposite sides of the two fixed rods 704. The fixed rods 704 are spring-loaded to the fixed bases 703 via the fixed springs 705. The device is connected in a linear fashion. A push rod 706 is fixedly connected to the front of the fixed insertion rod 704. A placement tube body 707 is provided on the left side of the placement tube base 701. Positioning blocks 7011 that are compatible with positioning slots 702 are fixedly connected to the upper and lower sides of the right side of the placement tube body 707. Filter plates 708 are fixedly connected to the upper and lower side walls of the placement tube body 707. Fixing blocks 709 are fixedly connected to the upper and lower sides of the front and rear outer walls of the placement tube body 707. Each fixing block 709 has a fixing insertion hole 7010 that is compatible with the fixed insertion rod 704 on its upper and lower sides.

[0028] Through the above scheme: pulling the push rod 706 causes the fixing rods 704 on both sides to move backward, inserting the placement tube 707 into the placement tube base 701 through the matching action of the positioning block 7011 and the positioning slot 702, thereby inserting the fixing block 709 into the fixing base 703. Releasing the push rod 706, since the fixing rod 704 is elastically connected to the fixing base 703 through the fixing spring 705, under the elastic action of the fixing spring 705, push the fixing rod 704 into the fixing hole 7010, so that the fixing block 709 is fixed, completing the assembly of the catalytic reactor 7. The assembly method of the first adsorption column 8 and the second adsorption column 9 is the same as above.

[0029] like Figure 1 , Figure 2 andFigure 6 As shown, the support base 1 includes a support frame 101. An observation window 102 is fixedly connected to the front side wall of the support frame 101. A hydraulic cylinder 103 is fixedly connected to the bottom of the rear of the support frame 101. A fixed column is fixedly connected to the top of the rear of the support frame 101. A movable block 104 is fixedly connected to the output end of the hydraulic cylinder 103. The movable block 104 is slidably connected to the fixed column. Adjusting plates 105 are movably connected to both the front and rear sides of the movable block 104. One end of the two adjusting plates 105 is movably connected to the movable block 104, and the other end of the two adjusting plates 105 is movably connected to a first clamping plate 106.

[0030] The above scheme involves placing the raw material gas tank 3 between two first clamping plates 106, starting the hydraulic cylinder 103, and pulling the movable block 104 vertically. Since one end of the two adjusting plates 105 is movably connected to the movable block 104, and the other end of the two adjusting plates 105 is movably connected to the first clamping plates 106, the two adjusting plates 105 move down with the movable block 104, causing the first clamping plates 106 to move closer to each other, thus clamping and fixing the raw material gas tank 3.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the heating furnace 2 includes a protective shell 201, which is fixedly connected to the top of the support frame 101. A support plate 202 is fixedly connected inside the protective shell 201. Several placement slots 203 are opened inside the support plate 202. One of the placement slots 203 is adapted to the catalytic reactor 7. A second clamping plate 204 is provided on both the left and right sides of each placement slot 203. An adjusting gear 205 is fixedly connected to the rear of the two second clamping plates 204. The two second clamping plates 204 are movably connected to the support plate 202 through a shaft. Movable tooth blocks 206 are meshed with the rear of the two adjusting gears 205. A lead screw slider 207 is fixedly connected to the rear of the two movable tooth blocks 206. The same bidirectional lead screw 208 is threaded inside the two lead screw sliders 207. The left side of the bidirectional lead screw 208 is fixedly connected to the output end of the drive motor 209.

[0032] The above scheme involves placing the catalytic reactor 7 into the corresponding placement slot 203, starting the drive motor 209 to rotate the bidirectional lead screw 208, and causing the lead screw sliders 207 on both sides to move the movable tooth blocks 206 closer to each other. Since the adjusting gear 205 meshes with the movable tooth blocks 206, the adjusting gears 205 on both sides rotate as the movable tooth blocks 206 move, causing the second clamping plates 204 on both sides to move closer to each other, thus clamping and fixing the catalytic reactor 7. The first adsorption column 8 and the second adsorption column 9 are fixed in the same way.

[0033] likeFigure 1 , Figure 2 and Figure 6 As shown, a raw material gas tank 3 is placed between the two first clamping plates 106. A gas supply pipe 4 is connected to the top of the raw material gas tank 3. The raw material gas tank 3 is connected to a rotor flow meter 6 via the gas supply pipe 4. The rotor flow meter 6 is connected to a catalytic reactor 7 via the gas supply pipe 4. The catalytic reactor 7 is connected to a first adsorption column 8 and a second adsorption column 9 via the gas supply pipe 4. Both the first adsorption column 8 and the second adsorption column 9 have the same structure as the catalytic reactor 7. Both the first adsorption column 8 and the second adsorption column 9 are adapted to the remaining placement tank 203. The first adsorption column 8 and the second adsorption column 9... A pressure gauge 10 is connected to the gas supply pipe 4. The right side of the pressure gauge 10 is connected to the vacuum pump 11 via the gas supply pipe 4. The catalytic reactor 7 is filled with a 0-973 type catalyst. The first adsorption column 8 and the second adsorption column 9 are both filled with molecular sieves. The right side of the first adsorption column 8 and the second adsorption column 9 is connected to the liquid sealing device 12 via the gas supply pipe 4. The right side of the liquid sealing device 12 is connected to the dew point meter 13, the CO2 analyzer 14 and the trace oxygen analyzer 15 via the gas supply pipe 4. The gas supply pipe 4 is connected to the switch valves 5 between each component.

[0034] The above procedure involves: opening valve 5 of the raw material gas tank 3 and valve 5 of the secondary adsorption column 9; adjusting the flow rate of the rotor flow meter 6 to 100 L / h; changing the pressure on the pressure gauge 10 from negative to positive; and when the pressure reaches 60 mmHg, opening valve 5 of the secondary adsorption column 9 and adjusting the outlet rate of the liquid seal device 12 to maintain the pressure of the entire device at approximately 60 mmHg; adjusting the temperature inside the catalytic reactor 7 to 180°C; turning on the power switch of the testing instrument for preheating; and after half an hour, sequentially opening valves 5 at the inlet and outlet of the testing instrument; adjusting the inlet flow rate of the dew point meter 13 to 150 ml / min, the inlet flow rate of the CO2 analyzer 14 to 500 ml / min, and the inlet flow rate of the trace oxygen analyzer 15 to 100 ml / min for measurement until the contents of O2, CO2, and H2O exceed the instrument's range.

[0035] Working principle: In actual use, firstly, the push rod 706 drives the fixing rods 704 on both sides to move backward, inserting the placement tube 707 into the placement tube base 701, so that the fixing block 709 is inserted into the fixing base 703. Then, the push rod 706 is released, and the fixing spring 705 pushes the fixing rod 704 into the fixing hole 7010, so that the fixing block 709 is fixed, completing the assembly of the catalytic reactor 7. The assembly method of the first adsorption column 8 and the second adsorption column 9 is the same as above.

[0036] Next, the catalytic reactor 7 is placed in the corresponding placement slot 203. The drive motor 209 drives the bidirectional lead screw 208 to rotate, causing the lead screw sliders 207 on both sides to drive the movable tooth blocks 206 to move closer to each other. As the movable tooth blocks 206 move, the adjusting gears 205 on both sides rotate, causing the second clamping plates 204 on both sides to move closer to each other, thus clamping and fixing the catalytic reactor 7. The first adsorption column 8 and the second adsorption column 9 are fixed in the same way.

[0037] Next, the raw material gas tank 3 is placed between the two first clamping plates 106. The hydraulic cylinder 103 pulls the movable block 104 to move vertically, so that the two adjusting plates 105 move down with the movable block 104 and drive the first clamping plates 106 to move closer to each other, thereby clamping and fixing the raw material gas tank 3.

[0038] Finally, open the valve 5 of the raw material gas tank 3 and the valve 5 of the auxiliary column of the second adsorption column 9, adjust the rotor flow meter 6, and the pressure on the pressure gauge 10 will change from negative pressure to positive pressure. When the pressure reaches 60 mmHg, open the valve 5 of the second adsorption column 9 and adjust the gas output rate of the liquid seal device 12 to keep the pressure of the entire device at about 60 mmHg. Adjust the temperature in the catalytic reactor 7 to 180℃, turn on the power switch of the testing instrument, and preheat it. After half an hour, open the valves 5 at the inlet and outlet of the testing instrument in sequence, adjust the inlet flow rate of the dew point meter 13 to 150 ml / min, the inlet flow rate of the CO2 analyzer 14 to 500 ml / min, and the inlet flow rate of the trace oxygen analyzer 15 to 100 ml / min for measurement until the contents of O2, CO2 and H2O exceed the instrument range.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas recovery and utilization device for a raw gas purification process, comprising a support base (1), a heating furnace (2) located on top of the support base (1), and a catalytic reactor (7) located inside the heating furnace (2), characterized in that, The catalytic reactor (7) includes a placement tube base (701), which is placed inside the heating furnace (2). Positioning slots (702) are provided on the upper and lower sides of the right side of the inner wall of the placement tube base (701). Fixed bases (703) are fixedly connected to the upper and lower sides of the outer walls of the front and rear sides of the placement tube base (701). Fixed rods (704) are slidably connected to the upper and lower sides inside each fixed base (703). Fixed springs (705) are connected to the opposite sides of the two fixed rods (704). The fixed rods (704) are elastically connected to the fixed bases (703) through the fixed springs (705). A push rod (706) is fixedly connected to the front of the fixed rods (704).

2. The gas recovery and utilization device in the raw gas purification process according to claim 1, characterized in that: The left side of the placement tube base (701) is provided with a placement tube body (707). The upper and lower sides of the right side of the placement tube body (707) are fixedly connected with positioning blocks (7011) that are compatible with positioning slots (702). The upper and lower side walls of the placement tube body (707) are fixedly connected with filter plates (708). The upper and lower sides of the front and rear outer walls of the placement tube body (707) are fixedly connected with fixing blocks (709). Each fixing block (709) has fixing holes (7010) on its upper and lower sides that are compatible with fixing rods (704).

3. The gas recovery and utilization device in the raw gas purification process according to claim 1, characterized in that: The support base (1) includes a support frame (101), an observation window (102) is fixedly connected to the front side wall of the support frame (101), a hydraulic cylinder (103) is fixedly connected to the bottom of the rear of the support frame (101), a fixed column is fixedly connected to the top of the rear of the support frame (101), and a movable block (104) is fixedly connected to the output end of the hydraulic cylinder (103), and the movable block (104) is slidably connected to the fixed column.

4. The gas recovery and utilization device in the raw gas purification process according to claim 3, characterized in that: Adjustment plates (105) are movably connected to both the front and rear sides of the movable block (104). One end of the two adjustment plates (105) is movably connected to the movable block (104), and the other end of the two adjustment plates (105) is movably connected to the first clamping plate (106).

5. The gas recovery and utilization device in the raw gas purification process according to claim 1, characterized in that: The heating furnace (2) includes a protective shell (201), which is fixedly connected to the top of the support frame (101). A support plate (202) is fixedly connected inside the protective shell (201). Several placement slots (203) are opened inside the support plate (202), one of which is adapted to the catalytic reactor (7).

6. The gas recovery and utilization device in the raw gas purification process according to claim 5, characterized in that: Each of the placement slots (203) is provided with a second clamping plate (204) on both the left and right sides. An adjusting gear (205) is fixedly connected to the rear of the two second clamping plates (204). The two second clamping plates (204) are movably connected to the support plate (202) through a shaft. A movable tooth block (206) is meshed with the rear of each of the two adjusting gears (205).

7. The gas recovery and utilization device in the raw gas purification process according to claim 6, characterized in that: Both movable tooth blocks (206) are fixedly connected to a lead screw slider (207) at their rear. The two lead screw sliders (207) are internally threaded with the same bidirectional lead screw (208). The left side of the bidirectional lead screw (208) is fixedly connected to the output end of the drive motor (209).

8. The gas recovery and utilization device in the raw gas purification process according to claim 4, characterized in that: A raw material gas tank (3) is placed between the two first clamping plates (106). A gas supply pipe (4) is connected to the top of the raw material gas tank (3). The raw material gas tank (3) is connected to a rotor flow meter (6) through the gas supply pipe (4). The rotor flow meter (6) is connected to a catalytic reactor (7) through the gas supply pipe (4).

9. The gas recovery and utilization device in the raw gas purification process according to claim 1, characterized in that: The catalytic reactor (7) is connected to the first adsorption column (8) and the second adsorption column (9) respectively through the gas supply pipe (4). The first adsorption column (8) and the second adsorption column (9) have the same structure as the catalytic reactor (7). The first adsorption column (8) and the second adsorption column (9) are adapted to the remaining placement tank (203). The first adsorption column (8) and the second adsorption column (9) are connected to a pressure gauge (10) through the gas supply pipe (4). The right side of the pressure gauge (10) is connected to a vacuum pump (11) through the gas supply pipe (4). The catalytic reactor (7) is filled with a 0-973 type catalyst. The first adsorption column (8) and the second adsorption column (9) are filled with molecular sieves.

10. A gas recovery and utilization device for raw material gas purification process according to claim 9, characterized in that: The right side of the first adsorption column (8) and the second adsorption column (9) is connected to the liquid sealing device (12) through the gas supply pipe (4). The right side of the liquid sealing device (12) is connected to the dew point meter (13), the CO2 analyzer (14) and the trace oxygen analyzer (15) through the gas supply pipe (4). The gas supply pipe (4) is connected to the switch valve (5) between each component.

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