Anaerobic process biogas spray defoaming device

Abstract

The utility model discloses an anaerobic process marsh gas sprays defoaming device, including equipment body, air inlet pipe, filler layer, spray defoaming structure, air outlet pipe, auxiliary defoaming structure and foam sensor, equipment body one side is equipped with two air inlet pipes, and filler layer is located in the equipment body inside, and spray defoaming structure is located in equipment body other side, and auxiliary defoaming structure is located in the equipment body inside upper end, and foam sensor is installed in equipment body top one end. The utility model discloses compared with prior art's advantage lies in: the utility model discloses be convenient for the foam in the input marsh gas removal, the relatively pure marsh gas after processing is discharged from the air outlet pipe of top and is transported to the next flow, and the liquid after removal is discharged through the water outlet pipe, thereby realizing the defoaming operation of marsh gas, and the above-mentioned parts can be combined and adjusted according to actual conditions, and the operation is simple and convenient when running, and the design is simple and reasonable, and is convenient to use and maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, specifically to an anaerobic process biogas spray defoaming device. Background Technology

[0002] Defoaming spraying is used in many different applications, including wastewater treatment. In wastewater treatment processes, foam generation has a crucial impact on treatment effectiveness. However, many wastewater treatment processes either ignore or directly spray defoamers, failing to achieve true defoaming and increasing the introduction of other pollutants.

[0003] In wastewater treatment projects, when detergents are added for cleaning in the front-end plant, foam will be generated during the back-end wastewater treatment process. This is especially true in anaerobic processes, where foam will flow out with the biogas collection pipes as the wastewater rises and biogas is collected, affecting the wastewater treatment process and the biogas collection efficiency. Excessive foam also pollutes the surrounding environment.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide an anaerobic biogas spray defoaming device.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an anaerobic biogas spray defoaming device, comprising:

[0007] The equipment body has two air inlet pipes on one side, with the two air inlet pipes respectively located in the middle and lower end of one side of the equipment.

[0008] A packing layer is provided inside the equipment body, and the air inlet pipe is located at the lower end of the packing layer;

[0009] A spray defoaming structure is provided on the other side of the equipment body. The spray defoaming structure includes a water inlet pipe provided on one side of the equipment body. Two spray pipes are connected to one side of the water inlet pipe. The two spray pipes are respectively located in the middle and upper part of one side of the equipment body. One end of the spray pipe extends into the interior of the equipment body. A nozzle is provided at the bottom of the spray pipe. There are several nozzles and they are arranged at equal intervals.

[0010] An exhaust pipe is provided on the top of the equipment body;

[0011] An auxiliary defoaming structure is provided inside the upper part of the equipment body. The auxiliary defoaming structure includes an inverted conical cover fixedly connected to the upper part of the inner wall of the equipment body. The bottom of the inverted conical cover is provided with an opening. A positive conical cover is fixedly connected to the top of the inner wall of the equipment body. The positive conical cover is located above the inverted conical cover.

[0012] A foam sensor is installed at one end of the top of the device body, with one end of the foam sensor extending into the interior of the device body.

[0013] Furthermore, the spray pipe is located at the upper end of the packing layer.

[0014] Furthermore, a solenoid valve is provided at the lower end of the water inlet pipe, and a solenoid valve is provided at the end of the spray pipe near the water inlet pipe.

[0015] Furthermore, the device body has multiple manholes on its front side, and the manholes are located at the upper end of the packing layer.

[0016] Furthermore, a water outlet pipe is connected to the lower end of the other side of the device body.

[0017] Furthermore, a level gauge is provided at the bottom front side of the device body.

[0018] The advantages of this utility model compared with the prior art are as follows: by setting up a spray defoaming structure and an auxiliary defoaming structure, it is easy to remove foam from the input biogas. The treated, relatively pure biogas is discharged from the top gas outlet pipe and transported to the next process. The removed liquid is discharged through the water outlet pipe, thereby realizing the defoaming operation of biogas. At the same time, the above-mentioned parts can be combined and adjusted according to the actual situation. It is easy to operate during operation, and the design is simple and reasonable, making it convenient to use and maintain. Attached Figure Description

[0019] Figure 1 This is a front view of an anaerobic biogas spray defoaming device according to this utility model.

[0020] Figure 2 This is a cross-sectional view of an anaerobic biogas spray defoaming device according to the present invention.

[0021] Figure 3 This utility model relates to an anaerobic biogas spray defoaming device. Figure 2 Enlarged structural diagram at point A in the middle.

[0022] The diagram shows: 1. Equipment body; 2. Air inlet pipe; 3. Packing layer; 4. Spray defoaming structure; 41. Water inlet pipe; 42. Spray pipe; 43. Spray head; 44. Solenoid valve; 5. Air outlet pipe; 6. Auxiliary defoaming structure; 61. Inverted cone hood; 62. Positive cone hood; 7. Foam sensor; 8. Manhole; 9. Water outlet pipe; 10. Level gauge. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] like Figures 1 to 3 As shown, this embodiment proposes a device body 1, with two air inlet pipes 2 on one side of the device body 1, the two air inlet pipes 2 being respectively located in the middle of one side of the device and at the lower end of one side.

[0026] The equipment body 1 has a packing layer 3 inside, and the air inlet pipe 2 is located at the lower end of the packing layer 3. Each packing layer 3 is used in conjunction with an air inlet pipe 2. The packing layer 2 can be set with one, two or more layers, depending on the amount of biogas foam to be processed. Each packing layer 3 is located above the air inlet pipe 2. The packing material of the packing layer 2 has multiple different specifications and materials. The thickness, specifications and materials of the packing material can be determined according to the properties of the biogas foam to be processed. The above are all existing technologies and will not be described in detail here.

[0027] On the other side of the equipment body 1, there is a spray defoaming structure 4. The spray defoaming structure 4 includes a water inlet pipe 41 located on one side of the equipment body 1. Two spray pipes 42 are connected to one side of the water inlet pipe 41. The two spray pipes 42 are respectively located in the middle and upper part of one side of the equipment. One end of the spray pipe 42 extends into the interior of the equipment body 1. There are several nozzles 43 at the bottom of the spray pipe 42. The nozzles 43 are arranged at equal intervals. The spray pipe 42 is located on the upper part of the packing layer 3. The specifications of the nozzles 43 are determined according to the spray water volume, and it is ensured that the selected nozzles 4 can radiate the entire packing area of ​​the equipment. In use, the spray pipes 42 are introduced from outside the equipment into the equipment. All of the above are existing technologies and will not be described in detail here.

[0028] A solenoid valve 44 is provided at the lower end of the water inlet pipe 41, and a solenoid valve 44 is provided at the end of the spray pipe 42 near the water inlet pipe 41. The solenoid valve 44 is used to adjust the water volume or to shut down the equipment for maintenance.

[0029] The top of the equipment body 1 is equipped with a gas outlet pipe 5, the size of which is determined according to the amount of biogas to be processed.

[0030] An auxiliary defoaming structure 6 is provided at the upper part of the inner wall of the equipment body 1. The auxiliary defoaming structure 6 includes an inverted conical cover 61 fixedly connected to the upper part of the inner wall of the equipment body 1. The bottom of the inverted conical cover 61 has an opening. A positive conical cover 62 is fixedly connected to the top of the inner wall of the equipment body 1. The positive conical cover 62 is located above the inverted conical cover 61. The size of the bottom of the positive conical cover 62 is larger than the size of the bottom opening of the inverted conical cover 61. Both the bottom of the outer wall of the inverted conical cover 61 and the top of the inner wall of the positive conical cover 62 are provided with bubble cleaning spikes. When some of the biogas bubbles containing droplets and sludge particles that have not been sprayed and defoamed rise to the top, they collide with the bubble cleaning spikes on the surface of the inverted conical cover 61 and the positive conical cover 62 and break. The droplets and sludge particles contained therein are separated and fall due to gravity. The relatively pure biogas after separation is discharged from the gas outlet pipe 5 at the top and is recycled.

[0031] A foam sensor 7 is installed at one end of the top of the equipment body 1. One end of the foam sensor 7 extends into the interior of the equipment body 1. The foam sensor 7 is connected to the main controller. The foam sensor 7 monitors the foam inside the equipment body 1. When the foam sensor 7 reaches the installation height, the main controller controls the external spray water pump to start, which delivers clean water through the inlet pipe 41 to the spray pipe 42 and sprays it out from the nozzle 43 to spray the biogas and eliminate the foam.

[0032] Multiple manholes 8 are provided on the front side of the equipment body 1. The manholes 8 are located on the upper end of the packing layer 3. The manholes 8 facilitate the replacement and maintenance of the packing in the packing layer 3 in the future.

[0033] The lower end of the other side of the equipment body 1 is connected to a water outlet pipe 9. Depending on the placement of the equipment body 1, if the equipment body 1 is placed at a high position, the spray water inside the equipment body 1 can be discharged by gravity through the water outlet pipe 9. If the equipment body 1 is placed at a low position, a drainage pump needs to be added outside the equipment body 1 to discharge the spray water in an organized manner.

[0034] A level gauge 10 is provided at the bottom front of the equipment body 1. Since the bottom of the equipment body 1 is used as a water tank, the level gauge 10 allows observation of the position of the spray water inside the equipment body 1, which is convenient for later operation and maintenance.

[0035] Among them, the foam sensor 7 and the level gauge 10 are both existing products on the market, and their connection methods and control methods are existing technologies, which will not be described in detail here.

[0036] In practical implementation, the biogas extracted during use is transported to the equipment body 1 through the inlet pipe 2. The biogas then rises and is processed by the packing layer 3. When it reaches the installation height of the foam sensor 7, the main controller activates the external spray water pump, which delivers clean water through the inlet pipe 41 to the spray pipe 42. The water is then sprayed from the nozzle 43 onto the biogas, removing the foam carried in it. The biogas continues to rise, and any remaining unsprayed water containing droplets and sludge is also sprayed away. When the biogas bubbles rise to the top, they collide with the bubble-removing spikes on the surfaces of the inverted cone hood 61 and the upright cone hood 62 and break, separating the liquid droplets and sludge particles they contain. Under the influence of gravity, they fall. After the foam is removed, the treated, purer biogas is discharged from the top gas outlet pipe 5 and transported to the next process. Then, water is discharged through the water outlet pipe 9, thus realizing the defoaming operation of biogas. At the same time, it is easy to combine and adjust the above parts according to the actual situation. The operation is simple and reasonable, and it is convenient to use and maintain.

[0037] All electrical components mentioned in this document are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer. The specific embodiments disclosed herein omit detailed descriptions of known functions and components. To ensure device compatibility, the operating methods used are consistent with the parameters of commercially available devices. In addition, all contents not described in detail in this specification are prior art known to those skilled in the art. The accompanying drawings are structural schematic diagrams used to supplement the text of the specification.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anaerobic biogas spray defoaming device, characterized in that: include: The equipment body (1) has two air inlet pipes (2) on one side, and the two air inlet pipes (2) are respectively located in the middle of one side of the equipment and at the lower end of one side. The packing layer (3) is located inside the equipment body (1), and the air inlet pipe (2) is located at the lower end of the packing layer (3). The spray defoaming structure (4) is located on the other side of the equipment body (1). The spray defoaming structure (4) includes a water inlet pipe (41) located on one side of the equipment body (1). Two spray pipes (42) are connected to one side of the water inlet pipe (41). The two spray pipes (42) are respectively located in the middle and upper part of one side of the equipment. One end of the spray pipe (42) extends into the interior of the equipment body (1). The bottom of the spray pipe (42) is provided with a nozzle (43). There are several nozzles (43) and they are arranged at equal intervals. An exhaust pipe (5) is located on the top of the equipment body (1); An auxiliary defoaming structure (6) is provided inside the upper part of the equipment body (1). The auxiliary defoaming structure (6) includes an inverted conical cover (61) fixedly connected to the upper part of the inner wall of the equipment body (1). The bottom of the inverted conical cover (61) is provided with an opening. A positive conical cover (62) is fixedly connected to the top of the inner wall of the equipment body (1). The positive conical cover (62) is provided at the upper part of the inverted conical cover (61). A foam sensor (7) is installed at one end of the top of the device body (1), and one end of the foam sensor (7) extends into the inside of the device body (1).

2. The anaerobic biogas spray defoaming device according to claim 1, characterized in that: The spray pipe (42) is located at the upper end of the filler layer (3).

3. The anaerobic biogas spray defoaming device according to claim 1, characterized in that: The lower end of the water inlet pipe (41) is equipped with a solenoid valve (44), and the end of the spray pipe (42) near the water inlet pipe (41) is equipped with a solenoid valve (44).

4. The anaerobic biogas spray defoaming device according to claim 1, characterized in that: The equipment body (1) has multiple manholes (8) on its front side, and the manholes (8) are located on the upper end of the packing layer (3).

5. The anaerobic biogas spray defoaming device according to claim 1, characterized in that: A water outlet pipe (9) is connected to the lower end of the other side of the equipment body (1).

6. The anaerobic biogas spray defoaming device according to claim 1, characterized in that: A level gauge (10) is provided at the bottom front side of the device body (1).

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