Biogas purifying device convenient to install for biogas digester

By using a nozzle and water tank structure for flushing and a filter plate design, the problems of particulate matter blockage and pollution in the biogas purification device have been solved, improving equipment operating efficiency and biogas purity, and simplifying the maintenance process.

CN224030936UActive Publication Date: 2026-03-24ZHOUKOUCHENGZHI BIOMASS ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing biogas purification devices lack effective filtration structures, allowing biogas containing particulate matter to enter the device, potentially clogging pipes, reducing equipment efficiency and lifespan, and contaminating the purification process, thus affecting purity.

Method used

The system uses a nozzle and water tank structure to flush biogas, using water to dissolve and remove particulate matter and harmful gaseous impurities. At the same time, the filter plates and bolted connections facilitate maintenance and replacement of the filter plates, ensuring the stability of equipment operation and purification effect.

Benefits of technology

It effectively removes particulate impurities from biogas, protects equipment, improves purity and calorific value, reduces maintenance time, and enhances equipment applicability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of biogas processing, and provides a biogas purifying device convenient to install for a biogas digester, which comprises a device body, a gas inlet pipeline is fixedly embedded on the left side in the device body, a feed hopper is fixedly embedded in the device body close to the bottom side, and a water tank is fixedly installed at the bottom of the feed hopper. When the device is used, through the arrangement of the spray head and the water tank structure, biogas can be washed, particulate matter impurities existing in the biogas can be effectively removed, follow-up equipment and a filtering system in the purification process are protected, and the operation efficiency and stability of the equipment are guaranteed; meanwhile, water can be used for dissolving and removing impurities such as carbon dioxide, hydrogen sulfide and ammonia gas in the biogas, the purity of the biogas can be effectively improved, the heat value of the biogas is increased, and the biogas is more suitable for energy utilization.
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Description

TECHNICAL FIELD

[0001] The utility model relates to biogas processing technical field especially, relates to a biogas purification device for easy installation of biogas tank. BACKGROUND

[0002] The biogas purification device refers to the equipment for removing impurities in the biogas and improving the methane concentration, and its core function is to convert low-purity biogas into high-purity biomethane (Biogas to Biomethane). In order to adapt to biogas tanks of different scales and simplify the installation process, the new purification device needs to have the characteristics of modular design, easy operation and maintenance, etc.

[0003] In the prior art, for example, Chinese patent No. CN202022127447.9 discloses a biogas purification device for easy installation of biogas tank, which comprises a purification chamber, a gas separation membrane assembly is fixedly connected to the upper side in the purification chamber, a first connecting pipe is fixedly connected to the lower end of the gas separation membrane assembly, a biogas compressor is fixedly connected to the lower end of the first connecting pipe, a second connecting pipe is fixedly connected to the lower end of the biogas compressor, a biogas tank is fixedly connected to the lower end of the purification chamber, a flow guide chamber is fixedly connected to the left end of the gas separation membrane assembly, a first flow guide pipe is fixedly connected to the left end of the flow guide chamber, a gas-liquid separator is fixedly connected to the first flow guide pipe, and a second flow guide pipe is fixedly connected to the left end of the gas-liquid separator. The biogas purification device for easy installation of biogas tank comprises a suction device composed of a driving motor, a fan blade, a bearing and a rotating rod, etc. The unpurified biogas passing through the gas-liquid separator can be quickly transported to the gas separation membrane assembly in the purification chamber, thereby increasing the purification efficiency.

[0004] Although the above-mentioned scheme has the advantages of quickly transporting the unpurified biogas passing through the gas-liquid separator to the gas separation membrane assembly in the purification chamber and increasing the purification efficiency, etc., the above-mentioned biogas purification device lacks effective filtering structure when in use. The biogas in the biogas tank usually contains a certain amount of particulate matter and other solid impurities, such as dust and tiny organic matter. When the biogas containing particulate matter is sucked into the purification device, the particulate matter may enter the internal device, causing multiple potential problems. First, the entry of particulate matter may block the pipelines, filters or other key components of the device, reducing the working efficiency and service life of the equipment. Second, the particulate matter may pollute the adsorption materials, membrane surfaces or absorption liquids in the purification process, which may reduce the purification effect and even affect the purity of the biogas. SUMMARY

[0005] The utility model discloses a purpose is to solve the lack of effective filter structure in prior art, leading to the biogas containing particulate matter can be inhaled into the inside of purification device, the entry of these particulate matters can block the pipeline of device, filter or other key components, reduce the working efficiency and service life of equipment, secondly, particulate matter adsorption material, membrane surface or absorption liquid in the purification process produce pollution, can lead to the problem of reducing the purification effect, even influence the purity of biogas.

[0006] In order to realize the above-mentioned purpose, the utility model discloses a kind of biogas purification device convenient to install for biogas tank, including device ontology, air inlet pipeline is fixedly embedded in the left side of the inside of device ontology, feed hopper is fixedly embedded in the inside of device ontology close to bottom side, water tank is fixedly installed in the bottom of feed hopper, the top of water tank is fixedly installed in the bottom of device ontology, first water outlet pipeline is fixedly embedded in the inside front side of water tank, first pump machine is fixedly installed in the other end of first water outlet pipeline, first pump machine is fixedly installed in the front side of the device ontology of rear side, second water outlet pipeline is fixedly installed in the top of first pump machine, conveying piece is fixedly installed in the other end of second water outlet pipeline, multiple spray heads are fixedly installed in the bottom of conveying piece.

[0007] As a preferred embodiment, multiple spray heads are fixedly embedded in the inside top side of device ontology, and water inlet pipeline is fixedly embedded in the left side of water tank.

[0008] The technical effect of the above further scheme is that clean water can be injected into the inside of water tank through water inlet pipeline.

[0009] As a preferred embodiment, one-way valve is arranged in the inside of water inlet pipeline, and third water outlet pipeline is fixedly installed in the bottom of water tank.

[0010] The technical effect of the above further scheme is that water in the inside of water tank can flow out of the inside of water tank through third water outlet pipeline.

[0011] As a preferred embodiment, valve is arranged in the inside of third water outlet pipeline, and first air outlet pipeline is fixedly embedded in the right side of device ontology, and second pump machine is fixedly installed in the other end of first air outlet pipeline.

[0012] The technical effect of the above further scheme is that biogas in the inside of device ontology can be extracted through first air outlet pipeline.

[0013] As a preferred embodiment, second pump machine is fixedly installed in the right side of device ontology on the left side, and filter plate is movably embedded in the inside of device ontology.

[0014] The technical effect of the further scheme is that the water can be filtered through the filter plate.

[0015] As a preferred embodiment, the right side of the second pump is fixedly provided with a second air outlet pipe, and the inner wall of the device body is provided with positioning grooves on both sides.

[0016] The technical effect of the further scheme is that the positioning column can be embedded in the positioning groove.

[0017] As a preferred embodiment, the inner sides of the two positioning grooves are slidably connected with positioning columns, the two positioning columns are fixedly installed on both sides of the filter plate, and the rear side of the filter plate is movably sleeved with a connecting piece.

[0018] The technical effect of the further scheme is that the positioning column can slide in the positioning groove.

[0019] As a preferred embodiment, the inner side of the connecting piece is threadedly connected with a plurality of bolts, the rear side of the device body is provided with a plurality of threaded holes, and the plurality of bolts are matched with the threaded holes.

[0020] The technical effect of the further scheme is that the bolts can be embedded in the threaded holes.

[0021] Compared with the prior art, the advantages and positive effects of the utility model lie in that,

[0022] 1. In use, the spray head and the water tank structure can not only flush the biogas to effectively remove particulate impurities in the biogas, protect the subsequent equipment and the filter system in the purification process, ensure the efficiency and stability of the equipment operation, but also dissolve and remove carbon dioxide, hydrogen sulfide and ammonia impurities in the biogas, effectively improve the purity of the biogas, enhance the calorific value of the biogas, and make it more suitable for energy utilization.

[0023] 2. In use, the connecting piece and the bolt structure facilitate the maintenance and replacement of the filter plate, reduce the maintenance time and labor intensity, and improve the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1The utility model provides a kind of rear view solid structure schematic diagram of biogas purification device convenient to install for biogas tank.

[0025] Figure 2 The utility model provides a kind of front view solid structure schematic diagram of biogas purification device convenient to install for biogas tank.

[0026] Figure 3 The utility model provides a kind of device body section solid structure schematic diagram of biogas purification device convenient to install for biogas tank Figure 1 ;

[0027] Figure 4 The utility model provides a kind of device body section solid structure schematic diagram of biogas purification device convenient to install for biogas tank Figure 2 ;

[0028] Figure 5 The utility model provides a kind of partial solid structure schematic diagram of biogas purification device convenient to install for biogas tank.

[0029] Legend:

[0030] 1, device body;101, air inlet pipeline;102, feed hopper;103, water tank;104, first water outlet pipeline;105, first pump machine;106, second water outlet pipeline;107, conveying piece;108, spray head;109, water inlet pipeline;110, check valve;111, third water outlet pipeline;112, valve;113, first air outlet pipeline;114, second pump machine;115, second air outlet pipeline;2, filter plate;201, positioning groove;202, positioning column;203, connecting piece;204, bolt;205, screw hole. Specific implementation

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0032] Embodiment 1, please refer to Figures 1 to 5The utility model provides a technical scheme: a biogas purification device convenient to install for biogas tank, including device body 1, the inside left side fixed embedding of device body 1 has the air inlet pipeline 101, the inside near the bottom fixed embedding of device body 1 has the feed hopper 102, the bottom fixed mounting of feed hopper 102 has water tank 103, the top fixed mounting of water tank 103 is at the bottom of device body 1, the inside front side fixed embedding of water tank 103 has first water outlet pipeline 104, the other end fixed mounting of first water outlet pipeline 104 has first pump machine 105, the rear side fixed mounting of first pump machine 105 is at the front side of device body 1, the top fixed mounting of first pump machine 105 has second water outlet pipeline 106, the other end fixed mounting of second water outlet pipeline 106 has conveying piece 107, the bottom fixed mounting of conveying piece 107 has multiple shower nozzles 108, multiple shower nozzles 108 all fixed embedding are at the inside top side of device body 1, the left side fixed embedding of water tank 103 has water inlet pipeline 109, is provided with check valve 110 in the inside of water inlet pipeline 109, the bottom fixed mounting of water tank 103 has third water outlet pipeline 111, is provided with valve 112 in the inside of third water outlet pipeline 111, the right side fixed embedding of device body 1 has first gas outlet pipeline 113, the other end fixed mounting of first gas outlet pipeline 113 has second pump machine 114.

[0033] In this embodiment, personnel first inject biogas from the biogas digester into the device body 1 through the air inlet pipe 101, and then inject water into the water inlet pipe 109. The water is then injected into the water tank 103 through the one-way valve 110 and the water inlet pipe 109. Afterwards, personnel can start the first pump 105 through the power supply system. When it is running, it can draw water from the water tank 103 through the first water outlet pipe 104 and transfer it through the first pump 105. The water then enters the conveyor 107 through the second water outlet pipe 106, and is then dispersed and transferred by the conveyor 107 into the nozzle 108. Water can then be sprayed out through the nozzle 108 to flush the biogas and remove particulate impurities. At the same time, water is used to remove impurities in the gas, such as carbon dioxide, hydrogen sulfide, and ammonia, to purify the biogas. The sprayed water is filtered through the filter plate 2 and then passes through the feed hopper. 102 flows back into the water tank 103. Simultaneously, personnel can start the second pump 114 via its power supply system. During operation, the second pump 114 extracts biogas from the device body 1 through the first exhaust pipe 113 and transfers it through the second exhaust pipe 115, transporting it out of the device body 1. Personnel can also open valve 112 to allow water to flow out of the water tank 103 through the third water outlet pipe 111 for water replacement. The arrangement of the nozzle 108 and the water tank 103 not only flushes the biogas to effectively remove particulate impurities, protecting subsequent equipment and the filtration system during purification, ensuring equipment efficiency and stability, but also uses water to dissolve and remove carbon dioxide, hydrogen sulfide, and ammonia impurities from the biogas, effectively improving its purity and calorific value, making it more suitable for energy utilization.

[0034] Example 2, as Figures 1 to 5 As shown, the left side of the second pump 114 is fixedly installed on the right side of the device body 1. The filter plate 2 is movably embedded inside the device body 1. The second air outlet pipe 115 is fixedly installed on the right side of the second pump 114. Positioning grooves 201 are opened on both sides of the inner wall of the device body 1. Positioning columns 202 are slidably connected inside the two positioning grooves 201. The two positioning columns 202 are fixedly installed on both sides of the filter plate 2. A connector 203 is movably sleeved on the rear side of the filter plate 2. Multiple bolts 204 are threaded inside the connector 203. Multiple threaded holes 205 are opened on the rear side of the device body 1. The multiple bolts 204 are matched with the threaded holes 205.

[0035] In the embodiment, the personnel can first insert the filter plate 2 from the rear side into the inside of the device body 1, and embed the positioning column 202 into the inside of the positioning groove 201, then push the filter plate 2 forward, so that the positioning column 202 slides forward in the inside of the positioning groove 201, when the filter plate 2 is embedded to a certain extent, the personnel can pick up the connecting piece 203, sleeve it to the rear side of the filter plate 2, and make the front side of the connecting piece 203 fit against the rear side of the device body 1, rotate the bolt 204, embed it into the inside of the threaded hole 205, to install the filter plate 2, and through the arrangement of the connecting piece 203 and the bolt 204 structure, it is convenient for the personnel to maintain and replace the filter plate 2, reduces the maintenance time and labor intensity, and improves the maintenance efficiency.

[0036] Working principle: in use, personnel first through the air inlet pipe 101 to the device body 1 inside the injection of biogas tank in the biogas, in the water inlet pipe 109 inside the injection of water, make the water through the check valve 110 and water inlet pipe 109 injection water tank 103 inside, after personnel can through the first pump 105 power supply system, start the first pump 105, make it in operation, can through the first water outlet pipe 104 extraction water tank 103 in the water, and through the first pump 105 transport, make it after the second water outlet pipe 106 into the conveying piece 107 inside, again through the conveying piece 107 dispersion transport, make it enter the inside of the spray head 108, in turn can through the spray head 108 spray water, to rinse the biogas, remove the particulate impurities contained in it, at the same time using water to remove the impurities in the gas, such as carbon dioxide, hydrogen sulfide and ammonia, to purify the biogas, and the water sprayed will be filtered through the filter plate 2, and reflow into the water tank 103 inside through the feed hopper 102, at the same time personnel can through the second pump 114 power supply system, start the second pump 114, make it in operation, can through the first gas outlet pipe 113 extraction device body 1 inside the biogas, and through the second pump 114 transport, make it through the second gas outlet pipe 115 transport out of the device body 1 inside, and personnel can open the valve 112, make the water through the third water outlet pipe 111 flow out of the water tank 103 inside, to replace the water, and through the structure of the spray head 108 and water tank 103, not only can rinse the biogas, to effectively remove the particulate impurities existing in the biogas, protect the subsequent equipment and purification process of the filter system, ensure the efficiency and stability of equipment operation, at the same time can use water to dissolve and remove carbon dioxide, hydrogen sulfide, ammonia impurities in the biogas, can effectively improve the purity of biogas, enhance the calorific value of biogas, make it more suitable for energy utilization. In use, personnel can first insert the filter plate 2 from the rear side into the inside of the device body 1, and make the positioning column 202 embedded in the inside of the positioning groove 201, then push the filter plate 2 forward, make the positioning column 202 slide forward in the inside of the positioning groove 201, when the filter plate 2 is embedded to a certain extent, personnel can pick up the connecting piece 203, set it to the rear side of the filter plate 2, and make the front side of the connecting piece 203 fit the rear side of the device body 1, rotate the bolt 204, embed it in the inside of the threaded hole 205, to install the filter plate 2, and through the structure of the connecting piece 203 and bolt 204, it is convenient for personnel to maintain and replace the filter plate 2, reduce the maintenance time and labor intensity, improve the maintenance efficiency.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A biogas purification device for biogas digesters that is easy to install, comprising a device body (1), characterized in that: An air inlet pipe (101) is fixedly embedded in the left side of the device body (1). A feed hopper (102) is fixedly embedded in the bottom side of the device body (1). A water tank (103) is fixedly installed at the bottom of the feed hopper (102). The top of the water tank (103) is fixedly installed at the bottom of the device body (1). A first water outlet pipe (104) is fixedly embedded in the front side of the inside of the water tank (103). A first pump (105) is fixedly installed at the other end of the first water outlet pipe (104). A first pump (105) is fixedly installed at the rear side of the first pump (105). Installed on the front side of the device body (1), a second water outlet pipe (106) is fixedly installed on the top of the first pump (105), and a conveying component (107) is fixedly installed at the other end of the second water outlet pipe (106). A plurality of nozzles (108) are fixedly installed at the bottom of the conveying component (107). The plurality of nozzles (108) are all fixedly embedded in the top side of the inside of the device body (1). A water inlet pipe (109) is fixedly embedded on the left side of the water tank (103). A one-way valve (110) is provided inside the water inlet pipe (109). The water tank (103) A third water outlet pipe (111) is fixedly installed at the bottom of the device body (1). A valve (112) is installed inside the third water outlet pipe (111). A first air outlet pipe (113) is fixedly embedded on the right side of the device body (1). A second pump (114) is fixedly installed at the other end of the first air outlet pipe (113). The left side of the second pump (114) is fixedly installed on the right side of the device body (1). A filter plate (2) is movably embedded inside the device body (1). A second air outlet pipe (112) is fixedly installed on the right side of the second pump (114). 5) Positioning grooves (201) are provided on both sides of the inner wall of the device body (1). Positioning columns (202) are slidably connected inside the two positioning grooves (201). The two positioning columns (202) are fixedly installed on both sides of the filter plate (2). A connector (203) is movably sleeved on the rear side of the filter plate (2). Multiple bolts (204) are threaded inside the connector (203). Multiple threaded holes (205) are provided on the rear side of the device body (1). The multiple bolts (204) are matched with the threaded holes (205).

Citation Information

Patent Citations

  • Convenient-to-install biogas purification device for biogas digester

    CN213266407U