Vertical biogas storage tank with separation structure

Abstract

The invention discloses a vertical biogas storage tank with a separation structure, and relates to the technical field of biogas storage tanks, the vertical biogas storage tank comprises a tank body, an external collector is fixedly arranged on the outer wall of the tank body, a pressure relief pipe is fixedly arranged in the external collector, and the gas inlet end of the pressure relief pipe is fixedly inserted into the tank body. When the air pressure in the tank body is too high, the piston piece is promoted to move, high-pressure gas is discharged into the external collector through the pressure relief pipe, so that the air pressure in the tank body is reduced, and the piston piece moves to abut against the alarm, so that personnel are warned through the alarm, and the personnel are promoted to treat the tank body in time; the possibility of danger caused by too high air pressure of the device when people treat the tank body is reduced; the biogas in the tank body is conveniently leaked into the external collector through the cooperation of the pressure relief pipe and the gas guide groove, so that the gas pressure in the tank body is reduced, and the leaked biogas is collected through the external collector, so that the possibility of biogas waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of biogas storage tanks, in particular to a vertical biogas storage tank with a separation structure. Background Art

[0002] Biogas storage tanks are pressure vessels specially used to safely store biogas. They are usually atmospheric pressure tanks, but considering the continuous fermentation characteristics of biogas, they must be designed in accordance with relevant specifications for pressure vessels. The main components of biogas are: methane, carbon dioxide, hydrogen sulfide and water, among which the content of methane is 50-80% and the content of carbon dioxide is 20-40%.

[0003] Some existing biogas storage tanks generally detect the air pressure inside the tank by installing a pressure sensor. When the air pressure inside the tank is too high, the pressure sensor controls the alarm to sound. Then, after hearing the alarm, personnel go to the tank to relieve the pressure. During this period of time, the pressure inside the tank continues to increase, which can easily cause danger. Summary of the invention

[0004] In order to improve the above-mentioned existing part of the biogas storage tanks generally detect the air pressure in the storage tank by setting a pressure sensor. When the air pressure inside the storage tank is too high, the pressure sensor controls the alarm to sound an alarm, and then the personnel hear the alarm and go to the storage tank to perform pressure relief treatment. During this period of time, the pressure inside the storage tank continues to increase, which easily causes dangerous problems. The present invention provides a vertical biogas storage tank with a separation structure.

[0005] The present invention provides a vertical biogas storage tank with a separation structure, which adopts the following technical solution: A vertical biogas storage tank with a separation structure comprises a tank body, an external collector is fixedly provided on the outer wall of the tank body, a pressure relief pipe is fixedly provided inside the external collector, an air inlet end of the pressure relief pipe is fixedly plugged on the tank body, the tank body is connected with the external collector through the pressure relief pipe, a piston is provided inside the pressure relief pipe, an alarm is fixedly provided on the outer wall of the external collector, a bell is rotatably plugged on the exhaust end of the pressure relief pipe, and a filter plate is provided inside the tank body.

[0006] Through the above technical solution, the biogas is first stored in the tank body. When the air pressure inside the tank body is too high, the pressure inside the tank body is higher than the air pressure in the external collector. At this time, the air pressure pushes the piston to move and discharges the high-pressure gas to the external collector through the pressure relief pipe, thereby reducing the air pressure inside the tank body.

[0007] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the pressure relief pipe is L-shaped, and a plurality of air guide grooves are provided on the inner wall of the pressure relief pipe.

[0008] Through the above technical solution, the pressure relief pipe cooperates with the gas guide groove to facilitate the leakage of biogas in the tank into the external collector, thereby reducing the gas pressure in the tank.

[0009] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the piston member includes a piston disc and a fixed disc, the piston disc is movably arranged in the pressure relief pipe, a round rod is movably inserted on the fixed disc, one end of the round rod is fixedly connected to the piston disc, the other end of the round rod passes through the fixed disc and extends out of the pressure relief pipe, and the piston disc and the fixed disc are connected by setting a spring.

[0010] Through the above technical solution, when the pressure inside the tank body becomes stronger, the piston disk pushes the round rod to move and causes the spring to compress and deform, and as the piston disk moves, it overlaps with the air guide groove. At this time, the biogas inside the tank body releases the pressure of the tank body through the air guide groove and the pressure relief pipe.

[0011] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the fixed plate includes a circular ring, a plurality of connecting rods are fixedly provided on the outer wall of the circular ring, one end of the connecting rod away from the circular ring is fixedly connected to the inner wall of the pressure relief pipe, and the circular rods are movably inserted in the circular ring.

[0012] Through the above technical solution, the circular ring can be fixed in the pressure relief pipe by cooperating with a plurality of connecting rods, thereby limiting the position of the circular rod.

[0013] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the sound amplification part of the alarm is outside the external collector, and the start button of the alarm passes through the external collector and extends into the external collector.

[0014] Through the above technical solution, the alarm can be used to warn personnel, thereby reminding them that the pressure inside the tank is too high.

[0015] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, one end of the round rod extending out of the pressure relief pipe corresponds to the position of the alarm start button.

[0016] Through the above technical solution, when the piston rod drives the round rod to move, the round rod conflicts with the start button, thereby prompting the alarm to start and sound an alarm.

[0017] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the bell member includes a rotating rod, both ends of which pass through the pressure relief pipe and extend out of the external collector and are fixed with a plurality of bells, and the outer wall of the rotating rod in the pressure relief pipe is provided with a plurality of fan blades.

[0018] Through the above technical solution, when the pressure relief pipe is exhausted, the airflow drives the fan blades and the rotating rod to rotate. As the rotating rod rotates, the bell is driven to rotate synchronously and produces a warning sound to warn people.

[0019] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, the filter plate is arranged obliquely in the tank body, the inner wall of the tank body is provided with two vertical grooves, the outer wall of the filter plate is fixedly provided with vertical blocks corresponding to the vertical grooves, the vertical blocks are located in the vertical grooves and slidably cooperate with the inner wall of the vertical grooves.

[0020] Through the above technical solution, the two vertical grooves cooperate with the vertical blocks to increase the stability of the filter plate when it moves.

[0021] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, a motor is fixedly provided on the outer wall of the tank body, a rotating shaft of the motor is inserted into the tank body and a cam is fixedly provided thereon, and an outer wall of the cam abuts against the bottom surface of the filter plate.

[0022] Through the above technical solution, the cam is driven to rotate by the motor, and the filter plate is caused to vibrate up and down as the cam rotates, causing impurities to accumulate continuously.

[0023] Optionally, in the above-mentioned vertical biogas storage tank with a separation structure, a sealing plate is hingedly connected to the outer wall of the tank body, and the position of the sealing plate corresponds to the position of the filter plate.

[0024] Through the above technical solution, when the operator opens the sealing plate, it is convenient to clean the impurities on the filter plate.

[0025] In summary, the present invention includes at least one of the following beneficial effects: When the gas pressure inside the tank is too high, the piston moves and discharges the high-pressure gas into the external collector through the pressure relief pipe, thereby reducing the gas pressure inside the tank. As the piston moves, it contacts the alarm, which warns the personnel, prompting them to handle the tank in time and reducing the possibility of danger caused by excessive gas pressure when the personnel are handling the tank. The pressure relief pipe and the gas guide groove cooperate to facilitate the biogas in the tank to leak into the external collector, thereby reducing the air pressure in the tank, and the leaked biogas is collected by the external collector, thereby reducing the possibility of biogas waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a partial three-dimensional structural cross-sectional view of the tank body of the present invention; Figure 3 It is a partial three-dimensional structural cross-sectional view of the external collector of the present invention.

[0027] In the figure: 1. tank body; 11. vertical groove; 12. motor; 13. cam; 14. sealing plate; 2. external collector; 3. pressure relief pipe; 31. air guide groove; 4. piston member; 41. piston disk; 42. fixed disk; 421. ring; 422. connecting rod; 43. round rod; 44. spring; 5. alarm; 6. bell member; 61. rotating rod; 62. bell; 63. fan blade; 7. filter plate; 71. vertical block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 The present invention is described in further detail.

[0029] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment: a vertical biogas storage tank with a separation structure, comprising a tank body 1. On the one hand, the tank body 1 is made of 304L stainless steel, and the tank body 1 has a lower carbon content, so it has better corrosion resistance; on the other hand, from the perspective of desulfurization technology, dry desulfurization, wet desulfurization, or biological desulfurization are used to reduce the content of hydrogen sulfide in the equipment, thereby ensuring that the equipment can be used more safely and for a longer period of time.

[0030] An external collector 2 is fixedly arranged on the outer wall of the tank body 1, and the leaked biogas can be collected conveniently through the external collector 2.

[0031] A pressure relief pipe 3 is fixedly arranged inside the external collector 2, and the air inlet end of the pressure relief pipe 3 is fixedly plugged into the tank body 1. The pressure relief pipe 3 is L-shaped, and a plurality of air guide grooves 31 are opened on the inner wall of the pressure relief pipe 3. The pressure relief pipe 3 cooperates with the air guide grooves 31 to facilitate the leakage of biogas in the tank body 1 into the external collector 2, thereby reducing the air pressure in the tank body 1, and the leaked biogas is collected by the external collector 2, thereby reducing the possibility of biogas waste.

[0032] The tank body 1 is connected with the external collector 2 through the pressure relief pipe 3. A piston member 4 is arranged in the pressure relief pipe 3. The piston member 4 includes a piston disc 41 and a fixed disc 42. The piston disc 41 is movably arranged in the pressure relief pipe 3. A round rod 43 is movably inserted on the fixed disc 42. One end of the round rod 43 is fixedly connected to the piston disc 41, and the other end of the round rod 43 passes through the fixed disc 42 and extends out of the pressure relief pipe 3. The piston disc 41 and the fixed disc 42 are connected by setting a spring 44. When the inside of the tank body 1 is under normal pressure, the spring 44 is used to push the piston disc 41 and the round rod 43 to move. At this time, the piston disc 41 is separated from the air guide groove 31 and the pressure relief pipe 3 is blocked. When the pressure inside the tank body 1 becomes strong, the piston disc 41 pushes the round rod 43 to move and causes the spring 44 to compress and deform, and as the piston disc 41 moves, it overlaps with the air guide groove 31. At this time, the biogas inside the tank body 1 releases the pressure of the tank body 1 through the air guide groove 31 and the pressure relief pipe 3.

[0033] The fixed disk 42 includes a circular ring 421, and a plurality of connecting rods 422 are fixedly provided on the outer wall of the circular ring 421. The end of the connecting rod 422 away from the circular ring 421 is fixedly connected to the inner wall of the pressure relief pipe 3. The circular rod 43 is movably inserted in the circular ring 421. The circular ring 421 is conveniently fixed in the pressure relief pipe 3 through the cooperation of the plurality of connecting rods 422, thereby limiting the position of the circular rod 43.

[0034] An alarm 5 is fixedly installed on the outer wall of the external collector 2. The sound amplification part of the alarm 5 is outside the external collector 2. The start button of the alarm 5 passes through the external collector 2 and extends into the external collector 2. The alarm 5 is used to warn personnel, thereby reminding personnel that the internal pressure of the tank body 1 is too high at this time, thereby prompting personnel to deal with the tank body 1 in time.

[0035] One end of the round rod 43 extending out of the pressure relief pipe 3 corresponds to the position of the start button of the alarm 5. When the piston rod drives the round rod 43 to move, the round rod 43 conflicts with the start button, thereby prompting the alarm 5 to start and sound an alarm.

[0036] A bell component 6 is rotatably connected to the exhaust end of the pressure relief pipe 3, and the bell component 6 includes a rotating rod 61. Both ends of the rotating rod 61 pass through the pressure relief pipe 3 and extend out of the external collector 2 and are fixedly provided with a plurality of bells 62. The rotating rod 61 is provided with a plurality of fan blades 63 on the outer wall of the pressure relief pipe 3. When the pressure relief pipe 3 is exhausted, the airflow drives the fan blades 63 and the rotating rod 61 to rotate. As the rotating rod 61 rotates, the bell 62 is driven to rotate synchronously and generates a warning sound to warn personnel.

[0037] A filter plate 7 is provided inside the tank body 1. The filter plate 7 is tiltedly arranged inside the tank body 1. Two vertical grooves 11 are provided on the inner wall of the tank body 1. Vertical blocks 71 corresponding to the vertical grooves 11 are fixedly provided on the outer wall of the filter plate 7. The vertical blocks 71 are located in the vertical grooves 11 and slidably cooperate with the inner wall of the vertical grooves 11. The cooperation between the two vertical grooves 11 and the vertical blocks 71 facilitates the increase of the stability of the filter plate 7 when it moves, and facilitates the filtration and separation of impurities in the biogas through the filter plate 7.

[0038] A motor 12 is fixedly arranged on the outer wall of the tank body 1. The rotating shaft of the motor 12 is inserted into the tank body 1 and fixedly arranged with a cam 13. The outer wall of the cam 13 abuts against the bottom surface of the filter plate 7. The motor 12 can easily drive the cam 13 to rotate. As the cam 13 rotates, the filter plate 7 vibrates up and down, and impurities are continuously accumulated.

[0039] A sealing plate 14 is hinged on the outer wall of the tank body 1 , and the position of the sealing plate 14 corresponds to the position of the filter plate 7 . When the operator opens the sealing plate 14 , it is convenient to clean the impurities on the filter plate 7 .

[0040] Working principle: When using the vertical biogas storage tank with a separation structure, the biogas is first stored through the tank body 1. When the air pressure inside the tank body 1 is too high, the internal pressure of the tank body 1 is higher than the air pressure in the external collector 2. At this time, the air pressure pushes the piston 4 to move, and discharges the high-pressure gas to the external collector 2 through the pressure relief pipe 3, thereby reducing the air pressure inside the tank body 1. As the piston 4 moves, it collides with the alarm 5, thereby warning people through the alarm 5. As the pressure relief pipe 3 continuously discharges gas, the bell 6 is caused to rotate, thereby giving a double warning through the bell 6.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical biogas storage tank with a separation structure, comprising a tank body (1), characterized in that: An external collector (2) is fixedly arranged on the outer wall of the tank body (1), a pressure relief pipe (3) is fixedly arranged inside the external collector (2), an air inlet end of the pressure relief pipe (3) is fixedly plugged into the tank body (1), the tank body (1) and the external collector (2) are connected via the pressure relief pipe (3), a piston member (4) is arranged inside the pressure relief pipe (3), an alarm (5) is fixedly arranged on the outer wall of the external collector (2), a bell member (6) is rotatably plugged into the exhaust end of the pressure relief pipe (3), and a filter plate (7) is arranged inside the tank body (1).

2. The vertical biogas storage tank with a separation structure according to claim 1 is characterized in that: The pressure relief pipe (3) is L-shaped, and a plurality of air guide grooves (31) are provided on the inner wall of the pressure relief pipe (3).

3. The vertical biogas storage tank with a separation structure according to claim 1 is characterized in that: The piston member (4) comprises a piston disc (41) and a fixed disc (42); the piston disc (41) is movably arranged in the pressure relief pipe (3); a round rod (43) is movably inserted into the fixed disc (42); one end of the round rod (43) is fixedly connected to the piston disc (41); the other end of the round rod (43) passes through the fixed disc (42) and extends out of the pressure relief pipe (3); the piston disc (41) and the fixed disc (42) are connected by a spring (44).

4. The vertical biogas storage tank with a separation structure according to claim 3 is characterized in that: The fixed plate (42) comprises a circular ring (421), a plurality of connecting rods (422) are fixedly provided on the outer wall of the circular ring (421), one end of the connecting rod (422) away from the circular ring (421) is fixedly connected to the inner wall of the pressure relief pipe (3), and the circular rod (43) is movably inserted in the circular ring (421).

5. The vertical biogas storage tank with a separation structure according to claim 3 is characterized in that: The sound amplification part of the alarm (5) is outside the external collector (2), and the start button of the alarm (5) passes through the external collector (2) and extends into the external collector (2).

6. The vertical biogas storage tank with a separation structure according to claim 5 is characterized in that: One end of the round rod (43) extending out of the pressure relief pipe (3) corresponds to the position of the start button of the alarm (5).

7. The vertical biogas storage tank with a separation structure according to claim 1 is characterized in that: The bell member (6) comprises a rotating rod (61), both ends of which pass through the pressure relief pipe (3) and extend out of the external collector (2) and are fixedly provided with a plurality of bells (62), and the outer wall of the rotating rod (61) in the pressure relief pipe (3) is provided with a plurality of fan blades (63).

8. The vertical biogas storage tank with a separation structure according to claim 1 is characterized in that: The filter plate (7) is arranged obliquely in the tank body (1); the inner wall of the tank body (1) is provided with two vertical grooves (11); the outer wall of the filter plate (7) is fixedly provided with vertical blocks (71) corresponding to the vertical grooves (11); the vertical blocks (71) are located in the vertical grooves (11) and are slidably matched with the inner wall of the vertical grooves (11).

9. The vertical biogas storage tank with a separation structure according to claim 1, characterized in that: A motor (12) is fixedly arranged on the outer wall of the tank body (1), a rotating shaft of the motor (12) is inserted into the tank body (1) and a cam (13) is fixedly arranged thereon, and the outer wall of the cam (13) abuts against the bottom surface of the filter plate (7).

10. The vertical biogas storage tank with a separation structure according to claim 9, characterized in that: A sealing plate (14) is hingedly connected to the outer wall of the tank body (1), and the position of the sealing plate (14) corresponds to the position of the filter plate (7).

Images