IC anaerobic tower biogas treatment system and sewage treatment system

Abstract

The utility model discloses an IC anaerobic tower marsh gas treatment system and sewage treatment system, wherein the IC anaerobic tower marsh gas treatment system comprises an IC anaerobic tower, a marsh gas collection pipe of the IC anaerobic tower is connected with marsh gas pretreatment equipment, the marsh gas pretreatment equipment is connected with a gas storage container, the gas storage container is connected with a combustor in a combustion furnace through a gas supply pipeline, and the combustor is connected with the IC anaerobic tower. The combustion furnace is connected with a chimney through a main exhaust pipeline and connected with a heat exchanger through a first branch pipe, the heat exchanger is connected with the main exhaust pipeline through a second branch pipe, and the heat exchanger is connected with an IC anaerobic tower water supply pipeline. According to the utility model, after the biogas generated by the IC anaerobic tower is treated and combusted in the combustion chamber, the biogas can be efficiently decomposed, pollutant emission is reduced, biogas treatment is facilitated, and meanwhile, hot gas generated after biogas combustion can heat inlet water of the IC anaerobic tower through the heat exchanger, so that an additional heat source does not need to be arranged; and energy conservation is facilitated, and the national low-carbon green production requirement is met.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment equipment, in particular to an IC anaerobic tower biogas treatment system and a sewage treatment system. Background Art

[0002] IC is an important equipment in anaerobic tower sewage treatment.

[0003] The biogas produced by the IC anaerobic tower in the high-concentration wastewater treatment system can be used as a combustible gas as a fuel.

[0004] The utility model patent with the authorization announcement number CN214654289 U discloses an IC anaerobic tower with a biogas collection pipe, which can only collect and discharge the biogas but does not effectively utilize the biogas.

[0005] At the same time, the water temperature in the conventional IC anaerobic tower needs to be controlled between 35℃-39℃. In winter, it is often necessary to use an additional heat source to heat the inlet water of the IC anaerobic tower to ensure the activity of the microorganisms therein. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems existing in the prior art and to provide an IC anaerobic tower biogas treatment system and a sewage treatment system.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] The IC anaerobic tower biogas treatment system comprises an IC anaerobic tower, a biogas collection pipe of the IC anaerobic tower is connected to a biogas pretreatment device, the biogas pretreatment device is connected to a gas storage container, the gas storage container is connected to a burner in a combustion furnace through a gas supply pipeline, the combustion furnace is connected to a chimney through a main exhaust pipe and to a heat exchanger through a first branch pipe, the heat exchanger is connected to the main exhaust pipe through a second branch pipe, and the heat exchanger is connected to a water supply pipeline of the IC anaerobic tower.

[0009] Preferably, in the IC anaerobic tower biogas treatment system, the biogas pretreatment equipment includes a dehydration tank and a desulfurization tank connected in sequence.

[0010] Preferably, in the IC anaerobic tower biogas treatment system, the gas supply pipeline includes a biogas delivery pipeline and an air delivery pipeline.

[0011] Preferably, in the IC anaerobic tower biogas treatment system, the biogas transportation pipeline includes a first pipeline, and the first pipeline is provided with an oxygen content detector and a first booster fan.

[0012] Preferably, the air supply pipeline further includes a pressure regulating valve located upstream of the first booster fan.

[0013] Preferably, in the IC anaerobic tower biogas treatment system, the air delivery pipeline includes a second pipeline and a second booster fan arranged on the pipeline, and the connection point between the second pipeline and the first pipeline is located downstream of the first booster fan.

[0014] Preferably, in the IC anaerobic tower biogas treatment system, the main exhaust pipe is provided with a first regulating valve located between the connection point between the main exhaust pipe and the first branch pipe and the second branch pipe.

[0015] Preferably, in the IC anaerobic tower biogas treatment system, a second regulating valve is provided on the first branch pipe.

[0016] Preferably, in the IC anaerobic tower biogas treatment system, a one-way valve is provided on the second branch pipe.

[0017] Preferably, in the IC anaerobic tower biogas treatment system, a temperature sensor is provided on the IC anaerobic tower water supply pipeline.

[0018] A sewage treatment system, comprising any of the IC anaerobic tower biogas treatment systems described above.

[0019] The advantages of the technical solution of the utility model are mainly reflected in:

[0020] The utility model treats the biogas produced by the IC anaerobic tower and burns it in the combustion chamber, which not only can efficiently decompose the biogas and reduce pollutant emissions, but also is beneficial to biogas management. At the same time, the hot gas after the biogas combustion can heat the water inlet of the IC anaerobic tower through the heat exchanger, so there is no need to set up an additional heat source, which is beneficial to energy saving and meets the national low-carbon green production needs.

[0021] The utility model can control the combustion process according to the oxygen content concentration, thereby ensuring the safety of combustion.

[0022] The utility model can adjust the first regulating valve and the second regulating valve according to the temperature measured by the temperature sensor to keep the inlet water at a constant temperature as much as possible, thereby avoiding the drastic change of the temperature in the tower that affects the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the IC anaerobic tower biogas treatment system of the utility model;

[0024] Figure 2 It is a schematic diagram of the IC anaerobic tower biogas treatment system of the utility model having a flue gas flow regulating structure;

[0025] Figure 3 It is a schematic diagram of a one-way valve provided in the second branch of the IC anaerobic tower biogas treatment system of the utility model. DETAILED DESCRIPTION

[0026] The purpose, advantages and features of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0027] In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] The IC anaerobic tower biogas treatment system disclosed by the utility model is described below in conjunction with the accompanying drawings. Figure 1 As shown, it includes an IC anaerobic tower 100, the biogas collection pipe of the IC anaerobic tower 100 is connected to the biogas pretreatment equipment 200, the biogas pretreatment equipment 200 is connected to the gas storage container 300, the gas storage container 300 is connected to the burner 510 in the combustion furnace 500 through the gas supply pipeline 400, the combustion furnace 500 is connected to the chimney 700 through the main exhaust pipe 600 and connected to the heat exchanger 900 through the first branch pipe 800, the heat exchanger 900 is connected to the main exhaust pipe 600 through the second branch pipe A00, and the heat exchanger 900 is connected to the IC anaerobic tower water supply pipeline B00.

[0029] During operation, the biogas generated by the IC anaerobic tower 100 is dried and desulfurized by the biogas pretreatment equipment 200, mixed with air and transported to the burner 510 for ignition. The biogas is fully burned in the combustion furnace 500 to generate CO2 and H2O that are harmless to the environment and release heat. The biogas oxidation combustion efficiency is greater than 99.9%. After the biogas is burned, high-temperature flue gas is formed and discharged from the combustion furnace 500. Part of the high-temperature flue gas is discharged from the chimney 700, and part of the high-temperature flue gas enters the heat exchanger 900 to heat the water inlet of the anaerobic tower water supply pipeline. The flue gas flowing out of the heat exchanger 900 enters the chimney 700 and is discharged into the atmosphere.

[0030] As attached Figure 1As shown, the biogas pretreatment equipment 200 includes a dehydration tank 210 and a desulfurization tank 220 connected in sequence, the air inlet of the dehydration tank 210 is connected to the biogas collection pipe through a pipeline, the air outlet of the dehydration tank 210 is connected to the air inlet of the desulfurization tank 220 through a pipeline, and the air outlet of the desulfurization tank 220 is connected to the gas supply pipeline 400, and the gas supply pipeline 400 includes a biogas delivery pipeline 410 and an air delivery pipeline 420. The biogas delivery pipeline 410 includes a first pipeline, and an oxygen content detector 411 and a first booster fan 412 are provided on the first pipeline. Therefore, the oxygen content of the biogas is obtained when the biogas passes through the oxygen content detector 411. When the oxygen content is too high, the biogas supply to the burner 510 is stopped. When the oxygen content meets the requirements, the first booster fan 412 can be started to supply biogas to the burner 510. At the same time, a pressure regulating valve 413 located upstream of the first booster fan 412 is also provided at the first pipeline to adjust the pressure in the pipeline.

[0031] Furthermore, the air delivery pipeline 420 includes a second pipeline and a second booster fan 421 arranged on the pipeline. The connection point between the second pipeline and the first pipeline is located downstream of the first booster fan 412. The second booster fan 421 is used to blow air into the first pipeline, so that the air and biogas are mixed for ignition.

[0032] The burner 510 may be, for example, a burner 510 used in a known gas stove or a gas water heater, and will not be described in detail herein.

[0033] The heat exchanger 900 may be a known device for heating a flowing liquid by hot gas, which will not be described in detail here.

[0034] As attached Figure 1 , Attachment Figure 2 As shown, the main exhaust pipe 600 is provided with a first regulating valve 610 located between the connection points between the main exhaust pipe 600 and the first branch pipe 800 and the second branch pipe A00, and the first branch pipe 800 is provided with a second regulating valve 810. The IC anaerobic tower water supply pipeline B00 is provided with a temperature sensor B10. Therefore, the opening of the first regulating valve 610 and the second regulating valve 810 can be adjusted according to the water temperature measured by the temperature sensor B10, so that the amount of high-temperature flue gas entering the heat exchanger 900 can be adjusted so that the water inlet of the IC anaerobic tower 100 reaches the target temperature.

[0035] As attached Figure 3 As shown, a one-way valve A10 is provided on the second branch pipe A00, and the one-way valve enables the gas to flow from the heat exchanger to the chimney.

[0036] Example 2

[0037] This embodiment discloses a sewage treatment system, including any of the IC anaerobic tower biogas treatment systems described above.

[0038] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. IC anaerobic tower biogas treatment system, including IC anaerobic tower, characterized by: The biogas collection pipe of the IC anaerobic tower is connected to the biogas pretreatment equipment, the biogas pretreatment equipment is connected to the gas storage container, the gas storage container is connected to the burner in the combustion furnace through the gas supply pipeline, the combustion furnace is connected to the chimney through the main exhaust pipe and connected to the heat exchanger through the first branch pipe, the heat exchanger is connected to the main exhaust pipe through the second branch pipe, and the heat exchanger is connected to the IC anaerobic tower water supply pipeline.

2. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: The biogas pretreatment equipment comprises a dehydration tank and a desulfurization tank which are connected in sequence.

3. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: The gas supply pipeline includes a biogas delivery pipeline and an air delivery pipeline. The biogas delivery pipeline includes a first pipeline. An oxygen content detector and a first booster fan are arranged on the first pipeline.

4. The IC anaerobic tower biogas treatment system according to claim 3 is characterized in that: The air supply pipeline also includes a pressure regulating valve located upstream of the first booster fan.

5. The IC anaerobic tower biogas treatment system according to claim 3, characterized in that: The air delivery pipeline includes a second pipeline and a second booster fan arranged on the pipeline, and the connection point between the second pipeline and the first pipeline is located downstream of the first booster fan.

6. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: The main exhaust pipe is provided with a first regulating valve located between the main exhaust pipe and the connection point between the first branch pipe and the second branch pipe.

7. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: The first branch pipe is provided with a second regulating valve.

8. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: The second branch pipe is provided with a one-way valve.

9. The IC anaerobic tower biogas treatment system according to claim 1, characterized in that: A temperature sensor is arranged on the water supply pipeline of the IC anaerobic tower.

10. Sewage treatment system, characterized by: It comprises the IC anaerobic tower biogas treatment system as described in any one of claims 1-9.

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