Assembled biogas dehydration tank

Abstract

The utility model discloses an assembled biogas dehydration tank which comprises a tank body, a sealing cover is clamped at the top of the tank body, a gas inlet pipe is connected to the outer contour of one side, close to the top, of the tank body in a penetrating manner, and an adsorption dehydration box is fixedly connected to the outer contour of the other side, close to the top, of the tank body; an exhaust pipe connected with the air inlet pipe is arranged at the bottom of the inner wall of the tank body, a drainage pipe is arranged on the outer contour, close to the bottom, of the tank body, and a liquid level monitoring mechanism is arranged at the top of the sealing cover. According to the utility model, through the liquid level monitoring mechanism, after the calcium chloride solution in the tank body finishes dehydrating the biogas, when the calcium chloride solution is reduced after the equipment is used for a long time, the liquid level of the calcium chloride solution stored in the tank body can be monitored through the liquid level sensor, so that an operator can conveniently know the liquid level condition in the tank body in time; and the practical performance of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas dehydration equipment, in particular to an assembled biogas dehydration tank. Background Art

[0002] Biogas treatment generally includes dehydration, desulfurization and decarbonation. The water in biogas and hydrogen sulfide work together to accelerate the corrosion of pipelines, valves and flow meters. Hydrogen sulfide also pollutes the atmosphere, so it must be removed. Biogas dehydration can be roughly divided into three methods: cold separation, solvent absorption and solid physical water absorption.

[0003] For example, the patent publication number CN216998307U discloses a biogas dehydration device for garbage power generation, and the key points of its technical solution are: it includes a dehydration tank and a top cover, the top cover is arranged at the top of the dehydration tank, the bottom end of one side of the dehydration tank is provided with a drain port, the top of one side of the dehydration tank is fixedly installed with a booster pump, the output end of the booster pump penetrates into the interior of the dehydration tank and is fixedly connected with an air inlet pipe, and a check valve is arranged on the air inlet pipe. The biogas dehydration device for garbage power generation is provided with an air outlet through the top of the other side of the dehydration tank, and an adsorption dehydration box is arranged on one side of the air outlet. When in use, after the biogas is dehydrated by the solvent absorption method, it enters the adsorption dehydration box through the air outlet, and the activated carbon filter inside the adsorption dehydration box can physically adsorb the small amount of water remaining inside, thereby ensuring complete dehydration and making the biogas sufficiently dry, which solves the problem of incomplete dehydration and affecting the dehydration effect of the biogas.

[0004] However, during use, the above-mentioned equipment purifies and dehydrates the biogas by fully contacting the biogas with the calcium chloride dehydration solvent in the tank body. However, the above-mentioned equipment will cause loss of the calcium chloride dehydration solvent if used for a long time, and the operator is required to observe and add the remaining dehydration solvent in the tank body in time, which increases the labor intensity of the operator and also reduces the purification and dehydration efficiency of the equipment for biogas. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an assembled biogas dehydration tank.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an assembled biogas dehydration tank, including a tank body, a sealing cover is clamped on the top of the tank body, an air inlet pipe is connected through the outer contour of the tank body on one side close to the top, an adsorption dehydration box is fixedly connected to the outer contour of the other side close to the top, an exhaust pipe connected to the air inlet pipe is arranged at the bottom of the inner wall of the tank body, a drain pipe is arranged on the outer contour of the tank body close to the bottom, a liquid level monitoring mechanism is arranged on the top of the sealing cover, a fixing plate is arranged on the outer contour of the tank body close to the bottom, a liquid storage tank is fixedly connected to the top of the fixing plate, and a liquid adding mechanism is arranged on the top of the liquid storage tank.

[0007] As a further description of the above technical solution:

[0008] The liquid level monitoring mechanism includes a liquid level sensor arranged on the top of the sealing cover, a connecting rod that is fixedly connected to the sealing cover at the bottom of the liquid level sensor, fixing rings are arranged on both sides of the outer contour of the connecting rod, a proximity switch is fixedly connected to the outer contour of the fixing ring, and a floating block is slidably connected to the outer contour of the connecting rod near the middle.

[0009] As a further description of the above technical solution:

[0010] The liquid adding mechanism includes a liquid adding pump arranged on the top of the liquid storage tank, the liquid inlet of the liquid adding pump is provided with a connecting pipe and extends to the bottom of the inner wall of the liquid storage tank, the liquid outlet of the liquid adding pump is provided with a delivery pipe, and the end of the delivery pipe away from the liquid adding pump is connected to the tank body.

[0011] As a further description of the above technical solution:

[0012] A threaded hole is formed on the fixing ring, and the fixing ring is detachably connected to the connecting rod through the threaded hole.

[0013] As a further description of the above technical solution:

[0014] An observation window is arranged on the surface of the liquid storage tank, and an acrylic plate is clamped on the surface of the observation window.

[0015] As a further description of the above technical solution:

[0016] A liquid adding pipe is fixedly connected to one side of the top of the liquid storage tank away from the liquid adding pump, and a sealing plug is clamped on the inner wall of the liquid adding pipe.

[0017] As a further description of the above technical solution:

[0018] A liquid inlet hole is provided on the inner wall of the tank body near the top, and one end of the delivery pipe away from the liquid adding pump is connected to the liquid inlet hole.

[0019] The utility model has the following beneficial effects:

[0020] 1. Compared with the prior art, the assembled biogas dehydration tank has a liquid level monitoring mechanism. After the calcium chloride solution in the tank body has completed the dehydration of biogas, when the calcium chloride solution is reduced after a long period of use of the equipment, the liquid level of the calcium chloride solution in the tank body can be monitored by the liquid level sensor, which is convenient for the operator to understand the liquid level in the tank body in time and improves the practical performance of the equipment.

[0021] 2. Compared with the prior art, the assembled biogas dehydration tank can start the liquid adding pump for automatic liquid adding after the calcium chloride solution in the tank body is reduced through the liquid adding mechanism. When the liquid level rises, the floating block contacts the proximity switch, and then the liquid adding pump is turned off. At this time, the addition of calcium chloride solution is completed, further increasing the utilization efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall main structure of an assembled biogas dehydration tank proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of an assembled biogas dehydration tank proposed by the utility model;

[0024] Figure 3 This is a schematic diagram of the main structure of a liquid storage tank of an assembled biogas dehydration tank proposed by the utility model;

[0025] Figure 4 The utility model provides an assembled biogas dehydration tank. Figure 2 A is an enlarged structural diagram of FIG.

[0026] Legend:

[0027] 1. Tank body; 2. Sealing cover; 3. Exhaust pipe; 4. Adsorption dehydration tank; 5. Drain pipe; 6. Liquid level sensor; 7. Connecting rod; 8. Fixing ring; 9. Proximity switch; 10. Floating block; 11. Fixing plate; 12. Liquid storage tank; 13. Liquid adding pump; 14. Connecting pipe; 15. Delivery pipe; 16. Liquid adding pipe; 17. Acrylic plate; 18. Liquid inlet hole; 19. Air inlet pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-4 The utility model provides an assembled biogas dehydration tank, comprising a tank body 1, a sealing cover 2 is clamped on the top of the tank body 1, an air inlet pipe 19 is connected through the outer contour of one side of the tank body 1 near the top, an adsorption dehydration tank 4 is fixedly connected to the outer contour of the other side of the tank body 1 near the top, an exhaust pipe 3 connected to the air inlet pipe 19 is arranged at the bottom of the inner wall of the tank body 1, a drain pipe 5 is arranged on the outer contour of the tank body 1 near the bottom, a liquid level monitoring mechanism is arranged on the top of the sealing cover 2, a fixing plate 11 is arranged on the outer contour of the tank body 1 near the bottom, a liquid storage tank 12 is fixedly connected to the top of the fixing plate 11, and the liquid storage tank 12 A liquid adding mechanism is provided on the top of the tank body 1, and the biogas is sent to the exhaust pipe 3 through the air inlet pipe 19, and then the biogas is brought into contact with the calcium chloride solution in the tank body 1 through the through hole on the exhaust pipe 3, and then the calcium chloride solution and the biogas are fully brought into contact through the stirring rod in the equipment, thereby completing the dehydration treatment, and then the biogas is discharged through the adsorption dehydration box 4 connected to the exhaust hole, and then the dehydrated biogas is dehydrated again through the adsorption dehydration box 4. When the equipment is used for a long time, the liquid level can be detected by the liquid level monitoring mechanism, and when the liquid level is reduced, the reduced calcium chloride solution in the tank body 1 is added through the liquid adding mechanism.

[0030] The liquid level monitoring mechanism includes a liquid level sensor 6 arranged on the top of the sealing cover 2, a connecting rod 7 that is connected to the sealing cover 2 is fixedly connected to the bottom of the liquid level sensor 6, a fixing ring 8 is arranged on both sides of the outer contour of the connecting rod 7, a proximity switch 9 is fixedly connected to the outer contour of the fixing ring 8, a floating block 10 is slidably connected to the outer contour of the connecting rod 7 near the middle, a threaded hole is opened on the fixing ring 8, and it is detachably connected to the connecting rod 7 through the threaded hole, the calcium chloride solution in the tank body 1 is monitored by the liquid level sensor 6, and it is displayed on the display control screen on the liquid storage tank 12, when the liquid level drops to, the floating floating block 10 contacts the fixing ring 8 and the proximity switch 9 near the bottom of the connecting rod 7, and the liquid adding mechanism is started to perform liquid adding processing, when the liquid level addition is completed, the floating floating block 10 limited by the connecting rod 7 moves upward, contacts the fixing ring 8 and the proximity switch 9 near the top of the connecting rod 7, thereby closing the liquid adding mechanism.

[0031] The liquid adding mechanism comprises a liquid adding pump 13 arranged at the top of the liquid storage tank 12, a connecting pipe 14 is arranged at the liquid inlet of the liquid adding pump 13 and extends to the bottom of the inner wall of the liquid storage tank 12, a delivery pipe 15 is arranged at the liquid outlet of the liquid adding pump 13, an end of the delivery pipe 15 away from the liquid adding pump 13 is connected with the tank body 1 through, an observation window is arranged on the surface of the liquid storage tank 12, an acrylic plate 17 is clamped on the surface of the observation window, a liquid adding pipe 16 is fixedly connected to the side of the top of the liquid storage tank 12 away from the liquid adding pump 13, a sealing plug is clamped on the inner wall of the liquid adding pipe 16, a liquid inlet hole 18 is opened on the inner wall of the tank body 1 near the top, and a liquid delivery pipe 15 away from the liquid adding pump 13 is connected to the inner wall of the liquid adding pipe 16. One end of the pump 13 is connected to the liquid inlet hole 18. When the liquid adding pump 13 is turned on, the liquid is taken out from the liquid storage tank 12 through the connecting pipe 14 connected to the liquid adding pump 13, and then the liquid is sent to the tank body 1 through the liquid inlet hole 18 opened on the tank body 1 through the delivery pipe 15. At this time, the liquid adding process of the liquid is completed. When the equipment is used, the liquid level in the liquid storage tank 12 is regularly observed through the observation window, and the observation window is protected by the acrylic plate 17. When the calcium chloride solution in the liquid storage tank 12 is used up, the liquid level is sent to the liquid storage tank 12 through the delivery pipe 15 by opening the liquid adding pipe 16.

[0032] Working principle: When the equipment is dehydrating biogas, it is displayed on the display control screen on the liquid storage tank 12. When the liquid level drops to, the floating floating block 10 contacts the fixed ring 8 and the proximity switch 9 near the bottom of the connecting rod 7. At this time, the liquid adding pump 13 is started, and the liquid is taken out from the liquid storage tank 12 through the connecting pipe 14 connected to the liquid adding pump 13, and then the liquid is sent to the tank body 1 through the liquid inlet hole 18 opened on the tank body 1 through the delivery pipe 15. When the liquid level is added, the floating floating block 10 limited by the connecting rod 7 moves upward and contacts the fixed ring 8 and the proximity switch 9 near the top of the connecting rod 7. At this time, the liquid adding pump 13 can be turned off.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled biogas dehydration tank, comprising a tank body (1), characterized in that: The top of the tank body (1) is clamped with a sealing cover (2); an air inlet pipe (19) is connected to the outer contour of the tank body (1) on one side near the top; an adsorption dehydration box (4) is fixedly connected to the outer contour of the other side near the top; an exhaust pipe (3) connected to the air inlet pipe (19) is arranged at the bottom of the inner wall of the tank body (1); a drain pipe (5) is arranged on the outer contour of the tank body (1) near the bottom; a liquid level monitoring mechanism is arranged on the top of the sealing cover (2); a fixing plate (11) is arranged on the outer contour of the tank body (1) near the bottom; a liquid storage tank (12) is fixedly connected to the top of the fixing plate (11); and a liquid adding mechanism is arranged on the top of the liquid storage tank (12).

2. The assembled biogas dehydration tank according to claim 1, characterized in that: The liquid level monitoring mechanism comprises a liquid level sensor (6) arranged on the top of the sealing cover (2); a connecting rod (7) penetrating the sealing cover (2) is fixedly connected to the bottom of the liquid level sensor (6); fixing rings (8) are arranged on both sides of the outer contour of the connecting rod (7); a proximity switch (9) is fixedly connected to the outer contour of the fixing ring (8); and a floating block (10) is slidably connected to the outer contour of the connecting rod (7) near the middle.

3. The assembled biogas dehydration tank according to claim 1, characterized in that: The liquid adding mechanism comprises a liquid adding pump (13) arranged on the top of the liquid storage tank (12); a connecting pipe (14) is arranged at the liquid inlet of the liquid adding pump (13) and extends to the bottom of the inner wall of the liquid storage tank (12); a delivery pipe (15) is arranged at the liquid outlet of the liquid adding pump (13); an end of the delivery pipe (15) away from the liquid adding pump (13) is connected to the tank body (1) through the end.

4. The assembled biogas dehydration tank according to claim 2, characterized in that: A threaded hole is formed on the fixing ring (8), and the fixing ring (8) is detachably connected to the connecting rod (7) through the threaded hole.

5. The assembled biogas dehydration tank according to claim 3 is characterized by: An observation window is provided on the surface of the liquid storage box (12), and an acrylic plate (17) is clamped on the surface of the observation window.

6. The assembled biogas dehydration tank according to claim 3, characterized in that: A liquid adding pipe (16) is fixedly connected to the top of the liquid storage tank (12) at one side away from the liquid adding pump (13), and a sealing plug is clamped on the inner wall of the liquid adding pipe (16).

7. The assembled biogas dehydration tank according to claim 3, characterized in that: The inner wall of the tank body (1) near the top is provided with a liquid inlet hole (18), and one end of the delivery pipe (15) away from the liquid adding pump (13) is connected to the liquid inlet hole (18).

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