Oil field thermal power station waste gas treatment device

Abstract

An oil field thermal power station waste gas treatment device belongs to the technical field of oil field production waste gas treatment service operation and comprises a chimney inner baffle, a waste gas underground pipeline gate, a waste gas cooling system, an induced draft fan, an underground pipeline and an earth surface air outlet. A waste gas underground pipeline gate and a waste gas cooling system are sequentially arranged on a pipeline between the chimney and the induced draft fan, and the induced draft fan is connected with an earth surface air outlet through an underground pipeline. According to the oil field thermal power station, a set of biological treatment device is established, by arranging an underground waste gas emission pipeline and a ground surface air outlet, precise emission and mass absorption of waste gas by ground surface crops and woods are achieved, the pollution and emission problems in the electric energy generation process are solved, migration of carbon dioxide is achieved, and energy is saved. The electric energy really becomes a green and pollution-free novel energy source, and meanwhile, industrial raw materials are provided for carbon dioxide flooding of an oil field.

Description

Technical Field

[0001] The invention belongs to the technical field of oilfield production waste gas treatment service operation, and in particular relates to a waste gas treatment device for an oilfield thermal power station. Background Art

[0002] With the continuous development of new energy, electric vehicles and even engineering vehicles are constantly emerging, with zero emissions and zero pollution during use, but the environmental friendliness of the electricity source is not recognized. At present, thermal power generation is the main source of electricity worldwide, accounting for 70% of the total power generation. Although electric vehicles are green and environmentally friendly, the power generation process produces a large amount of carbon dioxide, resulting in new energy vehicles not essentially achieving zero emissions. The direct discharge of exhaust gas from power plant chimneys results in less than 10% of the exhaust gas being absorbed by plants on the earth's surface. Summary of the invention

[0003] In order to solve the above-mentioned problems, the present invention proposes: a waste gas treatment device for an oilfield thermal power station, comprising a chimney inner baffle, a waste gas underground pipeline gate, a waste gas cooling system, an induced draft fan, an underground pipeline and a surface air outlet, the boiler is connected to the chimney through a pipeline, the chimney inner baffle is arranged inside the chimney, the chimney is connected to the induced draft fan through a pipeline, the pipeline between the chimney and the induced draft fan is sequentially provided with a waste gas underground pipeline gate and a waste gas cooling system, and the induced draft fan is connected to the surface air outlet through an underground pipeline.

[0004] Furthermore, the underground pipeline is provided with an underground pipeline water accumulation and drainage device.

[0005] Furthermore, the height of the chimney is 50-120 meters.

[0006] Furthermore, the surface air outlet leads to a field of crops.

[0007] Furthermore, a plurality of the surface air outlets are arranged and scattered among the green vegetation.

[0008] Furthermore, the induced draft fan pushes the exhaust gas after the boiler combustion to be discharged to various air outlets scattered in the green vegetation.

[0009] Furthermore, the baffle in the chimney is in a closed state, preventing the waste gas after the combustion of the boiler from being discharged from the chimney.

[0010] Furthermore, when the gate of the waste gas underground pipeline is opened, the waste gas is discharged into the underground pipeline in cooperation with the baffle plate inside the chimney.

[0011] The beneficial effects of the present invention are as follows: the oilfield thermal power station of the present invention establishes a set of biological treatment equipment, and through the arrangement of underground waste gas emission pipelines and surface air outlets, the surface crops and trees can achieve precise emission and large-scale absorption of waste gas, solve the pollution and emission problems in the process of electricity generation, realize the migration of carbon dioxide, and realize that electricity truly becomes a new type of green and pollution-free energy. At the same time, it provides industrial raw materials for oilfield carbon dioxide flooding.

[0012] This invention uses the principle that the density of power plant exhaust gas is relatively light, and changes it from being discharged directly from the chimney to the atmosphere, to being discharged by the roots of plants, achieving precise and efficient absorption. The effects achieved:

[0013] 1. It can transform thermal power into real green energy;

[0014] 2. It can realize the transportation of waste gases such as carbon dioxide. Through the new treatment method of waste gas emissions from power plants, the widespread use of electric vehicles in urban areas, highways and other areas where exhaust gas cannot be effectively absorbed is equivalent to transferring carbon dioxide to power plants for absorption and treatment;

[0015] 3. Achieve high yields of crops, trees and other vegetation near thermal power plants. During the growth of soybeans, if sufficient carbon dioxide is provided, the yield of soybeans can increase by 58%; during the growth of beets, if sufficient carbon dioxide is provided, the yield of beets can increase by 51%; during the growth of sorghum, if sufficient carbon dioxide is provided, the yield of sorghum can increase by 49%; during the growth of wheat, if sufficient carbon dioxide is provided, the yield of wheat can increase by 47%; during the growth of rice, if sufficient carbon dioxide is provided, the yield of rice can increase by 65%. As for vegetable plants, as long as sufficient carbon dioxide is provided during their growth, their yields can increase by 40%-68% depending on the variety of vegetables;

[0016] 4. Provide basic raw materials for carbon dioxide flooding. With the continuous development of society, the emission of greenhouse gases such as carbon dioxide continues to increase, causing the problem of environmental deterioration to become increasingly serious. Reducing carbon dioxide emissions and helping oil field development is an important way to slow global warming and turn pollution into a "resource." The new technology for capturing carbon dioxide in thermal power plant pipelines also greatly reduces energy consumption. The energy required to capture carbon dioxide saves more than 70% of the cost compared to the traditional process of extracting carbon dioxide from the air. This means that we can use energy more efficiently and contribute to the sustainable development of oil and gas;

[0017] 5. Absorbing carbon dioxide and releasing oxygen, continuously improving the earth's environment. Through the above statistical analysis, the exhaust gas emitted by the oil field thermal power station can not only provide industrial raw materials for carbon dioxide recovery, but also provide sufficient gas fertilizer for surrounding crops, forests and green vegetation, reduce the carbon dioxide content in the air, and make a huge contribution to improving the atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the waste gas treatment device of the oil field thermal power station of the present invention.

[0019] Among them, the accompanying drawings are marked

[0020] 1. Chimney inner baffle; 2. Exhaust gas underground pipe gate; 3. Exhaust gas cooling system; 4. Induced draft fan; 5. Underground pipeline; 6. Underground pipeline water drainage device; 7. Surface air outlet. DETAILED DESCRIPTION

[0021] In order to make the technical means and objectives of the present invention easy to understand, the present invention is further described below in combination with specific embodiments. An oilfield thermal power plant exhaust gas treatment device, such as Figure 1 As shown, it includes a chimney inner baffle 1, an exhaust gas underground pipeline gate 2, an exhaust gas cooling system 3, an induced draft fan 4, an underground pipeline 5 and a surface air outlet 7. The boiler is connected to the chimney through a pipeline, the chimney inner baffle 1 is arranged inside the chimney, the chimney is connected to the induced draft fan 4 through a pipeline, the pipeline between the chimney and the induced draft fan 4 is sequentially provided with an exhaust gas underground pipeline gate 2 and an exhaust gas cooling system 3, and the induced draft fan 4 is connected to the surface air outlet 7 through the underground pipeline 5.

[0022] Wherein, the underground pipeline 5 is provided with an underground pipeline water accumulation and drainage device 6.

[0023] Wherein, the height of the chimney is 50-120 meters.

[0024] The surface air outlet 7 leads to the field of crops.

[0025] There are several surface air outlets 7 scattered among the green vegetation.

[0026] The induced draft fan 4 pushes the exhaust gas after the boiler combustion to be discharged to various air outlets scattered in the green vegetation.

[0027] The chimney inner baffle 1 is in a closed state, preventing the exhaust gas after the boiler combustion from being discharged from the chimney.

[0028] The exhaust gas underground pipeline gate 2 is in an open state, and cooperates with the baffle plate 1 inside the chimney to discharge the exhaust gas into the underground pipeline 5 .

[0029] The present invention consists of 7 parts, namely, a chimney inner baffle 1, an exhaust gas underground pipeline gate 2, an exhaust gas cooling system 3, an induced draft fan 4, an underground pipeline 5, an underground pipeline water drainage device 6, and a surface air outlet 7. Its structural feature is that the normal exhaust gas passage is closed by the chimney inner baffle 1, the entrance gate of the underground pipeline 5 is opened, the exhaust gas is introduced into the underground pipeline 5, and the exhaust gas is transported by the underground pipeline 5 to the roots of surrounding crops, trees and other green vegetation.

[0030] Design principles:

[0031] 1. In order to avoid exhaust gas polluting the surrounding environment, the chimneys of thermal power plants are usually designed to be 50-120 meters high, which further leads to the inability of surrounding green crops, forests and vegetation to play their own characteristics and effectively absorb the exhaust gas emitted by thermal power plants;

[0032] 2. To convert electrical energy into truly green energy, it is necessary to properly absorb and treat the carbon dioxide and other waste gases generated during the power generation process, and make full use of the characteristics of the surrounding green plants to achieve zero emissions and zero pollution during the power generation process;

[0033] 3. According to the calculation of Songyuan Forestry Bureau, Songyuan is densely forested and has vast crops. The forest and crop ecosystem can absorb 62,800 tons of carbon dioxide annually, which is equivalent to the annual carbon dioxide emissions of 123,100 fuel vehicles and the annual carbon dioxide emissions of 10 1 million kWh thermal power plants. It absorbs 306.70 tons of fluoride annually, which is equivalent to reducing the gaseous fluoride pollutants released by 213,300 tons of coal. It absorbs 228,700 tons of nitrogen oxides annually, which is equivalent to the annual nitrogen oxide emissions of 8.3126 million vehicles. It absorbs 210 tons of heavy metals annually, which can reduce the concentration of heavy metal components in PM10 and PM2.5 particles in the atmosphere;

[0034] 4. After being discharged from the chimney, the average design height of the chimney of the thermal power station is 50-120 meters, and it flies directly into the atmosphere, resulting in extremely low efficiency of surface crops and trees to absorb the exhaust gas. According to the calculation of the Forestry Bureau, the ratio of surface plants to absorb the exhaust gas is less than 10%, which is far from the upper limit of absorption capacity;

[0035] 5. The application of this technology in oilfield thermal power plants can increase the carbon dioxide absorption rate from 10% to 90%, significantly reducing carbon dioxide emissions into the atmosphere, while providing sufficient carbon dioxide fertilizer for surrounding crops, forests and green vegetation.

[0036] The present invention utilizes the principle that the density of power plant exhaust gas is relatively light, and changes the exhaust gas from the chimney directly to the atmosphere to be discharged through the roots of plants, thus achieving accurate and efficient absorption. The effects achieved are as follows:

[0037] 1. It can transform thermal power into real green energy;

[0038] 2. It can realize the transportation of waste gases such as carbon dioxide. Through the new treatment method of waste gas emissions from power plants, the widespread use of electric vehicles in urban areas, highways and other areas where exhaust gas cannot be effectively absorbed is equivalent to transferring carbon dioxide to power plants for absorption and treatment;

[0039] 3. Achieve high yields of crops, trees and other vegetation near thermal power plants. During the growth of soybeans, if sufficient carbon dioxide is provided, the yield of soybeans can increase by 58%; during the growth of beets, if sufficient carbon dioxide is provided, the yield of beets can increase by 51%; during the growth of sorghum, if sufficient carbon dioxide is provided, the yield of sorghum can increase by 49%; during the growth of wheat, if sufficient carbon dioxide is provided, the yield of wheat can increase by 47%; during the growth of rice, if sufficient carbon dioxide is provided, the yield of rice can increase by 65%. As for vegetable plants, as long as sufficient carbon dioxide is provided during their growth, their yields can increase by 40%-68% depending on the variety of vegetables;

[0040] 4. Provide basic raw materials for carbon dioxide flooding. With the continuous development of society, the emission of greenhouse gases such as carbon dioxide continues to increase, causing the problem of environmental deterioration to become increasingly serious. Reducing carbon dioxide emissions and helping oil field development is an important way to slow global warming and turn pollution into a "resource." The new technology for capturing carbon dioxide in thermal power plant pipelines also greatly reduces energy consumption. The energy required to capture carbon dioxide saves more than 70% of the cost compared to the traditional process of extracting carbon dioxide from the air. This means that we can use energy more efficiently and contribute to the sustainable development of oil and gas;

[0041] 5. Absorbing carbon dioxide and releasing oxygen, continuously improving the earth's environment. Through the above statistical analysis, the exhaust gas emitted by the oil field thermal power station can not only provide industrial raw materials for carbon dioxide recovery, but also provide sufficient gas fertilizer for surrounding crops, forests and green vegetation, reduce the carbon dioxide content in the air, and make a huge contribution to improving the atmosphere.

[0042] Since the oil field is located in the northeast, the device can only be used in spring, summer and autumn, so a baffle 1 is set inside the chimney, which is opened in winter and closed in other seasons;

[0043] The exhaust gas underground pipe gate 2 cooperates with the chimney inner baffle to realize different exhaust gas emission modes during the four seasons transformation;

[0044] Since the temperature of the waste gas in the power plant boiler is relatively high and is about 80° without treatment, and the waste gas is transported and discharged through underground pipelines, it will play a certain role in heat preservation. If it is not treated, the high-temperature waste gas will burn the surrounding green plants. Therefore, the waste gas cooling system 3 is set to play a role in cooling;

[0045] The pipeline is equipped with an induced draft fan 4. Since the pipeline will be laid underground under crops, trees and other vegetation in the future, the distance is long and the internal resistance of the pipeline is large, the induced draft fan 4 is needed to push the exhaust gas after the boiler combustion to various outlets scattered in the green vegetation;

[0046] The purpose of setting up underground pipeline 5 is to reduce land occupation and land acquisition costs, and underground pipelines can be made of cement, which is cheaper;

[0047] The gas outlets are widely distributed among crops, trees and other vegetation, which are prone to water accumulation in the rainy season, resulting in a decrease in the efficiency of exhaust gas pipeline transportation. At the same time, since the exhaust gas is mostly acidic substances that easily combine with water, causing corrosion to the pipeline, it is necessary to install an underground pipeline water accumulation drainage device 6 to increase the service life of the pipeline. Arrange the submerged wells at a reasonable distance to ensure that the accumulated water in the pipeline can flow to the submerged wells in time. Reasonably set the depth of the submerged wells, at the lowest point of the entire pipeline, use gravity to guide the accumulated water into the submerged wells, avoiding the installation of additional electric drainage devices;

[0048] Reasonably arrange the exhaust outlet spacing of the surface air outlet 7 to give full play to the efficiency of each green plant in absorbing exhaust gas. Reasonably design the shape of the air outlet to ensure that the exhaust gas floats along the ground when it is ejected from the air outlet, prolong the retention time of the exhaust gas in the low air, ensure that the green vegetation has more time to absorb the exhaust gas and improve the absorption efficiency.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An oilfield thermal power plant waste gas treatment device, characterized in that: The invention comprises a chimney inner baffle (1), an exhaust gas underground pipeline gate (2), an exhaust gas cooling system (3), an induced draft fan (4), an underground pipeline (5) and a surface air outlet (7); the boiler is connected to the chimney through a pipeline; the chimney inner baffle (1) is arranged inside the chimney; the chimney is connected to the induced draft fan (4) through a pipeline; the exhaust gas underground pipeline gate (2) and the exhaust gas cooling system (3) are arranged in sequence in the pipeline between the chimney and the induced draft fan (4); the induced draft fan (4) is connected to the surface air outlet (7) through an underground pipeline (5).

2. The waste gas treatment device for an oilfield thermal power station according to claim 1, characterized in that: The underground pipeline (5) is provided with an underground pipeline water accumulation and drainage device (6).

3. The waste gas treatment device for an oilfield thermal power station according to claim 1, characterized in that: The height of the chimney is 50-120 meters.

4. The waste gas treatment device for an oilfield thermal power station according to claim 1, characterized in that: The surface air outlet (7) leads to the field of crops.

5. The waste gas treatment device for an oilfield thermal power station according to claim 4, characterized in that: A plurality of the surface air outlets (7) are arranged and dispersed among the green vegetation.

6. The waste gas treatment device for an oilfield thermal power station according to claim 5, characterized in that: The induced draft fan (4) pushes the exhaust gas after the boiler combustion to be discharged to various air outlets scattered in the green vegetation.

7. The waste gas treatment device for an oil field thermal power station according to claim 1, characterized in that: The chimney inner baffle (1) is in a closed state, preventing the exhaust gas after the boiler combustion from being discharged from the chimney.

8. The waste gas treatment device for an oilfield thermal power station according to claim 1, characterized in that: The waste gas underground pipeline gate (2) is in an open state, and cooperates with the chimney inner baffle (1) to discharge the waste gas into the underground pipeline (5).

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