Biogas pressurization system

Abstract

The utility model discloses a marsh gas pressurization system, and particularly relates to the field of marsh gas pressurization, the marsh gas pressurization system comprises a mounting plate fixed at the top of a marsh gas tank and a gas inlet pipe arranged at the top of the marsh gas tank, a through hole is formed in the middle of the mounting plate, and a protective cover is arranged at the top of the mounting plate. And a booster pump, a pressure tank and a controller are arranged at the top of the mounting plate. The pressure tank, the pressure gauge and the electromagnetic valve are matched, so that pressure can be supplemented to the biogas digester through the pressure tank when the pressure in the biogas digester is reduced to a preset minimum value, and after the pressure is supplemented to the biogas digester through the pressure tank for many times, the booster pump is started to pressurize the interior of the pressure tank; the opening and closing times of the booster pump can be reduced, the service life of the booster pump can be prolonged, the internal pressure leakage amount of the biogas digester can be reduced through the anti-leakage mechanism when the biogas digester is disassembled, assembled, overhauled and replaced, and the situation that the use effect is affected due to continuous leakage in the replacement process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas pressurization, and more specifically, to a biogas pressurization system. Background Art

[0002] Biogas is a combustible gas produced by the fermentation of organic matter under anaerobic conditions by microorganisms. First discovered in swamps, it is called biogas. It is a mixture of various gases, primarily methane, with the remainder being carbon dioxide and small amounts of nitrogen, hydrogen, and hydrogen sulfide. Its properties are similar to those of natural gas. However, the pressure of biogas output from biogas production sites is generally very low and cannot be used for direct combustion, so a safe and feasible biogas boosting system is required.

[0003] The Chinese patent application number CN202420014737.8 discloses a biogas boosting device to solve the problems that the device is not convenient for quick positioning and disassembly, which easily affects the maintenance efficiency of the device, and the device is not convenient for quick disassembly and wiping maintenance of the air pressure sensor in the tank body, and the air pressure sensor is easily affected by garbage sticking to the internal surface of the tank body, which easily affects its detection effect. It includes a tank body; a top plate is clamped and installed on the top of the tank body, and the limit plates at the inner end of the movable seat are respectively plugged and installed on the top of the fixed plate; the biogas boosting device is convenient for quick positioning and disassembly, has good maintenance efficiency, and the device is convenient for detecting the air pressure of the tank body through the air pressure sensor at the bottom of the probe rod, and the air pressure sensor is easy to disassemble and replace;

[0004] However, it can be seen from the drawings in its specification that when it is detected that the internal pressure of the biogas tank is low, the booster pump is directly controlled by the controller to start to increase the pressure inside the biogas tank. The booster pump needs to be started every time the pressure is needed, which will increase the number of times the booster pump is opened and closed, shortening the service life of the booster pump. In addition, when installing, disassembling, inspecting and replacing the booster pump, it is easy to cause continuous leakage of the internal pressure of the biogas tank, affecting the use effect. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a biogas boosting system to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a biogas boosting system, comprising a mounting plate fixed to the top of a biogas tank and an air intake pipe arranged at the top of the biogas tank, a through hole being opened in the middle of the mounting plate, a protective cover being provided on the top of the mounting plate, a boosting pump, a pressure tank, and a controller being provided on the top of the mounting plate, a pressure gauge being provided on the top of the pressure tank, and a leak-proof mechanism being provided in the middle of the air intake pipe;

[0007] The output end of the pressure tank is connected to a connecting pipe, the end of the connecting pipe close to the pressure tank is connected to a solenoid valve, the end of the connecting pipe away from the pressure tank is provided with a connecting sleeve, the end of the connecting pipe close to the connecting sleeve is provided with an air pressure detector, and the end of the connecting pipe close to the connecting sleeve is fixedly connected to a first fixing plate.

[0008] Preferably, the through hole is sleeved in the middle of the air intake pipe, the diameter of the air intake pipe is adapted to the inner cavity of the connecting sleeve, the outer surface of the air intake pipe is threadedly connected to the inner cavity of the connecting sleeve, the air pressure detector, pressure gauge and booster pump are all electrically connected to the controller, and the output end of the booster pump is connected to the inner cavity of the pressure tank.

[0009] Preferably, connecting ear plates are symmetrically fixedly connected to the bottom of the protective cover, and positioning rods are symmetrically fixedly connected to the top of the mounting plate. The positioning rods correspond to the connecting ear plates one by one, and the positioning rods pass through the middle of the connecting ear plates and are covered with nuts.

[0010] Preferably, the anti-leakage mechanism includes a fixed rod fixed in the middle of the air inlet pipe, a blocking ring, and a second fixed plate. The blocking ring is arranged between the fixed rod and the second fixed plate. The fixed rod is arranged on the side of the second fixed plate away from the biogas tank.

[0011] Preferably, a top rod is inserted into the middle of the fixing rod, and a sealing cone is fixedly connected to the bottom of the top rod. One side of the inner cavity of the sealing ring is set to a conical structure and adapted to the wall of the sealing cone. A sealing gasket is provided on the outer surface of the sealing cone.

[0012] Preferably, a stabilizing rod is fixedly connected to the middle of the second fixing plate, one end of which passes through the sealing cone and extends to the middle of the top rod. A spring is sleeved on the middle of the stabilizing rod, and the spring is arranged between the sealing cone and the second fixing plate.

[0013] Technical effects and advantages of this utility model:

[0014] 1. The utility model firstly cooperates with the pressure tank, pressure gauge and solenoid valve to replenish the pressure to the biogas pool through the pressure tank when the internal pressure of the biogas pool drops to a preset minimum value. After the pressure tank replenishes the pressure to the biogas pool multiple times, the booster pump is started to increase the pressure inside the pressure tank, which can reduce the number of times the booster pump is turned on and off, thereby extending the service life of the booster pump. In addition, the anti-leakage mechanism can reduce the amount of internal pressure leakage of the biogas pool during disassembly, installation, maintenance and replacement, thereby avoiding continuous leakage during the replacement process, which affects the use effect.

[0015] 2. The utility model can also cover and protect the booster pump, pressure tank and controller through the protective cover, and the spring pushes the sealing cone to improve the fitting strength between the sealing cone and the blocking ring, thereby improving the sealing and leak-proof effect. The stabilizing rod improves the stability of the sealing cone and the ejector rod in the up and down movement, and the fixing rod improves the stability of the ejector rod, thereby improving the use effect. The push of the ejector rod by the first fixing plate facilitates automatic opening and use.

[0016] In summary, through the mutual influence of the above-mentioned multiple effects, the number of times the booster pump is opened and closed can be reduced, the service life of the booster pump can be extended, the internal pressure leakage of the biogas tank can be reduced, and continuous leakage during the replacement process can be avoided, which affects the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the connection structure between the mounting plate, booster pump and pressure tank of the utility model.

[0019] Figure 3 This is a schematic diagram of the disassembled structure of the mounting plate and protective cover of the utility model.

[0020] Figure 4 For this utility model Figure 1 Schematic diagram of the locally enlarged structure at point A in the middle.

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the push rod and the air intake pipe of the utility model.

[0022] The accompanying drawings are marked as follows: 1. Mounting plate; 2. Protective cover; 3. Booster pump; 4. Pressure tank; 5. Pressure gauge; 6. Connecting pipe; 7. Solenoid valve; 8. Connecting sleeve; 9. Air pressure detector; 10. First fixed plate; 11. Through hole; 12. Inlet pipe; 13. Positioning rod; 14. Connecting ear plate; 15. Fixed rod; 16. Blocking ring; 17. Push rod; 18. Sealing cone; 19. Second fixed plate; 20. Stabilizing rod; 21. Spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] As attached Figure 1-5The biogas boosting system shown in the figure includes a mounting plate 1 fixed on the top of the biogas tank and an air inlet pipe 12 arranged on the top of the biogas tank, and the air inlet pipe 12 is used to conveniently inject gas into the biogas tank to increase the pressure. A through hole 11 is opened in the middle of the mounting plate 1, and the through hole 11 does not affect the installation and fixation of the boosting system. A protective cover 2 is provided on the top of the mounting plate 1, and a boosting pump 3, a pressure tank 4 and a controller are provided on the top of the mounting plate 1. The boosting pump 3, the pressure tank 4 and the controller can be covered and protected by the protective cover 2. A pressure gauge 5 is provided on the top of the pressure tank 4, and the internal pressure of the pressure tank 4 can be detected in real time by the pressure gauge 5. When the internal pressure of the pressure tank 4 drops to a set value, the boosting pump 3 can automatically replenish the interior of the pressure tank 4 to improve the use effect. A leak-proof mechanism is provided in the middle of the air inlet pipe 12 to avoid leakage of the internal pressure of the biogas tank during installation and disassembly of the boosting system, which affects the use effect.

[0025] The output end of the pressure tank 4 is connected to a connecting pipe 6, an end of the connecting pipe 6 close to the pressure tank 4 is connected to a solenoid valve 7, an end of the connecting pipe 6 away from the pressure tank 4 is sleeved with a connecting sleeve 8, an end of the connecting pipe 6 close to the connecting sleeve 8 is provided with an air pressure detector 9, an end of the connecting pipe 6 close to the connecting sleeve 8 is fixedly connected to a first fixing plate 10 inside, and is threadedly connected to the air inlet pipe 12 through the connecting sleeve 8, which is convenient for connection, installation and use, and the air pressure detector 9 can detect the internal pressure of the biogas tank through the air inlet pipe 12. When the pressure in the biogas tank is low, the solenoid valve 7 is controlled to open by the controller, so that the gas inside the pressure tank 4 is input into the biogas tank through the connecting pipe 6 to pressurize the biogas tank. When the internal pressure of the pressure tank 4 drops to a predetermined value, the booster pump 3 automatically starts to pressurize the interior of the pressure tank 4, thereby improving the use effect.

[0026] As attached Figure 1 、 2 4, the through hole 11 is sleeved in the middle of the air intake pipe 12, the diameter of the air intake pipe 12 is adapted to the inner cavity of the connecting sleeve 8, the outer surface of the air intake pipe 12 is threadedly connected to the inner cavity of the connecting sleeve 8, the air pressure detector 9 and the pressure gauge 5, and the booster pump 3 are all electrically connected to the controller, and the output end of the booster pump 3 is connected to the inner cavity of the pressure tank 4, and can be conveniently connected and used through the through hole 11, and through the cooperation of the air intake pipe 12 and the connecting sleeve 8, it is convenient to connect and use, and it is convenient to control and use through the controller.

[0027] As attached Figure 1-3 As shown, connecting ear plates 14 are symmetrically fixedly connected to the bottom of the protective cover 2, and positioning rods 13 are symmetrically fixedly connected to the top of the mounting plate 1. The positioning rods 13 correspond to the connecting ear plates 14 one by one. The positioning rods 13 pass through the middle of the connecting ear plates 14 and are sleeved with nuts. Through the cooperation of the positioning rods 13 and the connecting ear plates 14, the protective cover 2 can be conveniently installed and fixed, and the internal equipment can be conveniently protected by the protective cover 2, thereby improving the use effect.

[0028] As attached Figure 1 、 4 As shown in Figure 5, the anti-leakage mechanism includes a fixed rod 15 fixed in the middle of the air inlet pipe 12, a blocking ring 16, and a second fixed plate 19. The blocking ring 16 is arranged between the fixed rod 15 and the second fixed plate 19. The fixed rod 15 is arranged on the side of the second fixed plate 19 away from the biogas tank.

[0029] As attached Figure 1 、 4 As shown in Figure 5, a top rod 17 is inserted into the middle of the fixed rod 15, and a sealing cone 18 is fixedly connected to the bottom of the top rod 17. One side of the inner cavity of the sealing retaining ring 16 is set to a conical structure and adapted to the wall of the sealing cone 18. A sealing gasket is provided on the outer surface of the sealing cone 18.

[0030] As attached Figure 1 、 4 As shown in Figures 5 and 6, a stabilizing rod 20 is fixedly connected to the middle of the second fixing plate 19, one end of the stabilizing rod 20 passes through the sealing cone 18 and extends to the middle of the top rod 17, and a spring 21 is sleeved in the middle of the stabilizing rod 20, which is arranged between the sealing cone 18 and the second fixing plate 19. The spring 21 pushes the sealing cone 18, so that the wall of the sealing cone 18 can fit tightly with the wall of the blocking ring 16, thereby blocking the middle of the air intake pipe 12, so that when the boosting equipment is disassembled and replaced, it will not cause the pressure of the biogas tank to continue to leak, and it plays a role of automatic blocking. When the top rod 17 is pushed to separate the sealing cone 18 from the blocking ring 16, the spring 21 is pushed at this time, so that the interior of the air intake pipe 12 can be connected, which is convenient for opening and use, and improves the use effect.

[0031] The working principle of the utility model is as follows: when in use, the mounting plate is placed on the top of the biogas tank and the air inlet pipe is passed through the middle of the through hole. Then, the connecting sleeve is threadedly connected to the air inlet pipe until one end of the connecting pipe is tightly fitted with the wall of the air inlet pipe. At this time, the first fixing plate pushes the push rod to make the inner cavity of the connecting pipe communicate with the inner cavity of the biogas tank through the air inlet pipe, and the air pressure inside the biogas tank is detected by the air pressure detector.

[0032] When the pressure detector detects a value that reaches the preset minimum value, the controller controls the solenoid valve to open, and the air pressure inside the pressure tank is automatically injected into the biogas tank through the connecting pipe until the pressure detector reaches the maximum preset value. When the pressure gauge detects a value that reaches the preset minimum value, the controller controls the booster pump to automatically start and replenish the pressure inside the pressure tank until the pressure gauge detects a value that reaches the maximum preset value, so as to automatically increase the pressure inside the biogas tank and improve the use effect.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A biogas boosting system, comprising a mounting plate (1) fixed to the top of a biogas tank and an air inlet pipe (12) arranged at the top of the biogas tank, characterized in that: A through hole (11) is provided in the middle of the mounting plate (1), a protective cover (2) is provided on the top of the mounting plate (1), a booster pump (3), a pressure tank (4), and a controller are provided on the top of the mounting plate (1), a pressure gauge (5) is provided on the top of the pressure tank (4), and an anti-leakage mechanism is provided in the middle of the air intake pipe (12); The output end of the pressure tank (4) is connected to a connecting pipe (6), the end of the connecting pipe (6) close to the pressure tank (4) is connected to a solenoid valve (7), the end of the connecting pipe (6) away from the pressure tank (4) is sleeved with a connecting sleeve (8), the end of the connecting pipe (6) close to the connecting sleeve (8) is provided with an air pressure detector (9), and the end of the connecting pipe (6) close to the connecting sleeve (8) is fixedly connected to a first fixing plate (10) inside.

2. A biogas boosting system according to claim 1, characterized in that: The through hole (11) is sleeved on the middle part of the air intake pipe (12); the diameter of the air intake pipe (12) is adapted to the inner cavity of the connecting sleeve (8); the outer surface of the air intake pipe (12) is threadedly connected to the inner cavity of the connecting sleeve (8); the air pressure detector (9), the pressure gauge (5), and the booster pump (3) are all electrically connected to the controller; and the output end of the booster pump (3) is communicated with the inner cavity of the pressure tank (4).

3. The biogas boosting system according to claim 1, characterized in that: The bottom of the protective cover (2) is symmetrically fixedly connected with connecting ear plates (14), and the top of the mounting plate (1) is symmetrically fixedly connected with positioning rods (13). The positioning rods (13) correspond to the connecting ear plates (14) one by one. The positioning rods (13) pass through the middle of the connecting ear plates (14) and are covered with nuts.

4. The biogas boosting system according to claim 1, characterized in that: The anti-leakage mechanism comprises a fixed rod (15) fixed to the middle of the air inlet pipe (12), a blocking ring (16), and a second fixed plate (19); the blocking ring (16) is arranged between the fixed rod (15) and the second fixed plate (19); and the fixed rod (15) is arranged on a side of the second fixed plate (19) away from the biogas tank.

5. The biogas boosting system according to claim 4, characterized in that: A top rod (17) is inserted into the middle of the fixing rod (15), and a sealing cone (18) is fixedly connected to the bottom of the top rod (17). One side of the inner cavity of the blocking ring (16) is set as a conical structure and is adapted to the wall of the sealing cone (18). The outer surface of the sealing cone (18) is provided with a sealing gasket.

6. The biogas boosting system according to claim 4, characterized in that: A stabilizing rod (20) is fixedly connected to the middle of the second fixing plate (19), one end of the stabilizing rod (20) passes through the sealing cone (18) and extends to the middle of the top rod (17), and a spring (21) is sleeved on the middle of the stabilizing rod (20), and the spring (21) is arranged between the sealing cone (18) and the second fixing plate (19).

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