Biogas pretreatment device for biogas generator set

Abstract

The utility model discloses a biogas pretreatment device for a biogas generator set, which comprises a bottom plate, a desulfurization tank is arranged on one side above the bottom plate, a gas inlet is arranged on one side of the desulfurization tank, a gas outlet is arranged on the other side of the desulfurization tank, a water outlet is arranged below the desulfurization tank, and a gas outlet is arranged on the other side of the desulfurization tank. A fixing ring is mounted on the inner side of the desulfurization tank, and a baffle plate is fixed below the fixing ring; according to the biogas pretreatment device for the biogas generator set, through the arrangement of the fixing ring, the baffle plate, the connecting plate, the first bolt and the spraying frame, the baffle plate is mounted above the spraying frame through the first bolt in the using process of the device, gas generated after the reaction of biogas and a sodium hydroxide solution impacts the baffle plate when passing through the baffle plate, and the gas is prevented from flowing into the spraying frame; water drops in the gas are left on the baffle plate, moisture in the gas is removed, the moisture is prevented from damaging the biogas pretreatment device and the biogas engine unit, and the heat value and the combustion efficiency of the biogas can be improved through dehydration.

Description

Technical Field

[0001] The utility model relates to the technical field related to biogas generators, in particular to a biogas pretreatment device for a biogas generator set. Background Art

[0002] A biogas generator refers to a power generation system that uses biogas to generate electricity. A biogas generator set is mainly composed of a biogas generator and a gas system. The biogas generator is a high-power gas internal combustion engine, consisting of an engine, a generator and a control system. The biogas generator set converts the chemical energy in the biogas into electrical energy and provides a stable power output for the load. Biogas power generation technology is an environmentally friendly, efficient and renewable energy utilization technology that can be widely used in agriculture, industry, urban life and other fields. It helps to alleviate energy crises and environmental pollution problems. Before converting biogas from chemical energy to electrical energy, it is necessary to pretreat the biogas. The biogas pretreatment device is mainly used to pretreat the biogas and remove impurities in the biogas.

[0003] In the existing biogas pretreatment device, the effect of dehydrating biogas is not good, which may affect the normal operation of the biogas generator set. Therefore, it is necessary to propose a biogas pretreatment device for a biogas generator set. Utility Model Content

[0004] The purpose of the utility model is to provide a biogas pretreatment device for a biogas generator set to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biogas pretreatment device for a biogas generator set, comprising a bottom plate, a desulfurization tank is installed on one side above the bottom plate, an air inlet is provided on one side of the desulfurization tank, an air outlet is provided on the other side of the desulfurization tank, a drain is provided below the desulfurization tank, a fixing ring is installed on the inner side of the desulfurization tank, a baffle is fixed below the fixing ring, connecting plates are fixed on both sides above the fixing ring, a first bolt penetrates through one side of the connecting plate, a spray rack is fixed on the inner side of the desulfurization tank, a nozzle is fixed below the spray rack, a storage box is installed on one side above the bottom plate, a water pump is installed on one side of the storage box, a first water pipe is installed on one side of the water pump, a second water pipe is installed below the drain, a filter tank is installed at one end of the second water pipe, a sealing cover is installed on one side of the filter tank, a second bolt penetrates through one side of the sealing cover, a water inlet is provided on one side of the filter tank, and a water outlet is provided on one side of the filter tank.

[0006] Preferably, the baffles are arranged at equal intervals below the fixing ring, and the baffles are arranged in a wave shape.

[0007] Preferably, the connecting plate is threadedly connected to the desulfurization tank via a first bolt, and the connecting plate is symmetrically arranged with respect to the central axis of the fixing ring.

[0008] Preferably, the nozzles are distributed in a circular pattern below the spray rack, and the outer diameter of the spray rack matches the inner diameter of the desulfurization tank.

[0009] Preferably, one end of the first water pipe penetrates into the interior of the desulfurization tank, and the first water pipe is used in conjunction with the desulfurization tank.

[0010] Preferably, the sealing cover is threadedly connected to the filter tank via second bolts, and the second bolts are distributed in a circumference on one side of the sealing cover.

[0011] Preferably, a filter element is installed on the inner side of the filter tank, and a fixing plate is installed on one side of the filter element.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The biogas pretreatment device for a biogas generator set is provided with a fixing ring, a baffle, a connecting plate, a first bolt and a spray rack. During the use of the device, the baffle is installed above the spray rack by the first bolt. When the gas after the biogas reacts with the sodium hydroxide solution, it hits the baffle when passing through the baffle, and the water droplets in the gas are left on the baffle, thereby removing the moisture in the gas, preventing the moisture from damaging the biogas pretreatment device and the biogas generator set, and dehydration can also improve the calorific value and combustion efficiency of the biogas.

[0014] 2. The biogas pretreatment device for a biogas generator set is provided with a spray rack, a nozzle, a storage box, a water pump and a first water pipe. During the use of the device, by turning on the switch of the water pump, the sodium hydroxide solution in the storage box enters the spray rack from the first water pipe and is sprayed downward by the nozzle. The nozzle can spread the spray range so that the sodium hydroxide solution can be evenly sprayed onto the biogas, thereby improving the working efficiency of the biogas pretreatment device;

[0015] 3. The biogas pretreatment device for a biogas generator set is provided with a desulfurization tank, a second water pipe, a filter tank, and a filter element. During the use of the device, the liquid produced by the reaction of the biogas in the desulfurization tank with the sodium hydroxide solution enters the filter tank through the second water pipe, the liquid is filtered by the filter element, and the filtered liquid is discharged. The biogas may contain some harmful substances after the reaction with the sodium hydroxide solution. If it is not treated and directly discharged into the environment, it may cause pollution to the environment. Discharging after filtering can protect the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the desulfurization tank of the utility model;

[0018] Figure 3 This is a schematic diagram of the baffle structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the spray rack of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the filter tank of the utility model.

[0021] In the figure: 1. bottom plate; 2. desulfurization tank; 3. air inlet; 4. air outlet; 5. drain outlet; 6. fixing ring; 7. baffle; 8. connecting plate; 9. first bolt; 10. spray rack; 11. nozzle; 12. storage box; 13. water pump; 14. first water pipe; 15. second water pipe; 16. filter tank; 17. sealing cover; 18. second bolt; 19. water inlet; 20. water outlet; 21. filter element; 22. fixing plate. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a biogas pretreatment device for a biogas generator set, comprising a bottom plate 1, a desulfurization tank 2 is installed on one side above the bottom plate 1, an air inlet 3 is opened on one side of the desulfurization tank 2, an air outlet 4 is arranged on the other side of the desulfurization tank 2, a drain port 5 is arranged below the desulfurization tank 2, a fixing ring 6 is installed on the inner side of the desulfurization tank 2, a baffle 7 is fixed below the fixing ring 6, the baffle 7 is arranged at equal intervals below the fixing ring 6, the baffle 7 is arranged in a wave shape, and the gas can leave water droplets on the baffle 7 when passing through the baffle 7 7, connecting plates 8 are fixed on both sides above the fixing ring 6, and the connecting plates 8 are threadedly connected to the desulfurization tank 2 through the first bolts 9. The connecting plates 8 are symmetrically arranged with the central axis of the fixing ring 6, and the baffle 7 is fixed to the inner side of the desulfurization tank 2. The first bolt 9 penetrates one side of the connecting plate 8, and a spray rack 10 is fixed to the inner side of the desulfurization tank 2. A nozzle 11 is fixed below the spray rack 10. The nozzles 11 are distributed in a circle below the spray rack 10. The outer diameter of the spray rack 10 coincides with the inner diameter of the desulfurization tank 2, and the sodium hydroxide solution can be evenly sprayed on the biogas;

[0024] See also Figure 1 and Figure 5 A storage box 12 is installed on one side of the upper part of the bottom plate 1, a water pump 13 is installed on one side of the storage box 12, a first water pipe 14 is installed on one side of the water pump 13, one end of the first water pipe 14 penetrates into the interior of the desulfurization tank 2, and the first water pipe 14 is used in conjunction with the desulfurization tank 2 to dissolve the sodium hydroxide in the storage box 12 into the spray rack 10, a second water pipe 15 is installed below the drain port 5, a filter tank 16 is installed on one end of the second water pipe 15, a sealing cover 17 is installed on one side of the filter tank 16, the sealing cover 17 is threadedly connected to the filter tank 16 through a second bolt 18, the second bolt 18 is circumferentially distributed on one side of the sealing cover 17, so that the filter tank 16 is sealed, and the second bolt 18 penetrates one side of the sealing cover 17, a water inlet 19 is provided on one side of the upper part of the filter tank 16, a water outlet 20 is provided on one side of the filter tank 16, a filter element 21 is installed on the inner side of the filter tank 16, and a fixing plate 22 is installed on one side of the filter element 21.

[0025] Working principle: When using the biogas pretreatment device for the biogas engine set, first turn on the external power supply, and the biogas enters the tank through the air inlet 3 of the desulfurization tank 2, then add the sodium hydroxide solution into the storage tank 12, turn on the switch of the water pump 13, and let the sodium hydroxide solution in the storage tank 12 enter the spray rack 10 through the first water pipe 14, and spray it evenly from the nozzle 11 onto the biogas in the tank, and the biogas reacts with the sodium hydroxide solution to remove impurities in the biogas. The uniform spraying of the nozzle 11 can improve the working efficiency of the biogas pretreatment device, and then the treated biogas is When passing through the baffle 7, the biogas hits the baffle 7, leaving the water droplets in the biogas on the baffle 7, removing the moisture in the biogas to prevent the moisture from damaging the biogas generator set. Finally, the liquid in the desulfurization tank 2 enters the filter tank 16 through the second water pipe 15, so that the filter element 22 filters the solution, and the liquid is discharged after filtration to prevent environmental pollution. Then, the external power supply of the device is cut off when the device is not in use. The model of the water pump 13 is ISW25. In this way, the use process of the biogas pretreatment device for the biogas engine set is completed.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biogas pretreatment device for a biogas generator set, comprising a bottom plate (1), characterized in that: A desulfurization tank (2) is installed on one side above the bottom plate (1), an air inlet (3) is provided on one side of the desulfurization tank (2), an air outlet (4) is provided on the other side of the desulfurization tank (2), a water outlet (5) is provided below the desulfurization tank (2), a fixing ring (6) is installed on the inner side of the desulfurization tank (2), a baffle (7) is fixed below the fixing ring (6), connecting plates (8) are fixed on both sides above the fixing ring (6), a first bolt (9) penetrates one side of the connecting plate (8), a spray rack (10) is fixed on the inner side of the desulfurization tank (2), a nozzle ( 11), a storage box (12) is installed on one side above the bottom plate (1), a water pump (13) is installed on one side of the storage box (12), a first water pipe (14) is installed on one side of the water pump (13), a second water pipe (15) is installed below the drain outlet (5), a filter tank (16) is installed at one end of the second water pipe (15), a sealing cover (17) is installed on one side of the filter tank (16), a second bolt (18) penetrates one side of the sealing cover (17), a water inlet (19) is opened on one side of the filter tank (16), and a water outlet (20) is opened on one side of the filter tank (16).

2. A biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: The baffles (7) are arranged at equal intervals below the fixing ring (6), and the baffles (7) are arranged in a wave shape.

3. The biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: The connecting plate (8) is threadedly connected to the desulfurization tank (2) via a first bolt (9), and the connecting plate (8) is symmetrically arranged with respect to the central axis of the fixing ring (6).

4. The biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: The nozzles (11) are distributed in a circular pattern below the spray frame (10), and the outer diameter of the spray frame (10) matches the inner diameter of the desulfurization tank (2).

5. The biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: One end of the first water pipe (14) penetrates into the interior of the desulfurization tank (2), and the first water pipe (14) is used in conjunction with the desulfurization tank (2).

6. The biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: The sealing cover (17) is threadedly connected to the filter tank (16) via second bolts (18), and the second bolts (18) are distributed in a circumferential manner on one side of the sealing cover (17).

7. The biogas pretreatment device for a biogas generator set according to claim 1, characterized in that: A filter element (21) is installed on the inner side of the filter tank (16), and a fixing plate (22) is installed on one side of the filter element (21).

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