Flue gas dehydration device

Abstract

The utility model provides a flue gas dehydration device which comprises an inlet pressure sensor, one end of the inlet pressure sensor is connected with an inlet stop valve, and one end of the inlet stop valve is respectively connected with a flue gas dehydration tower with a heating device and a cold CO2-rich gas inlet stop valve. An outlet pressure sensor, an outlet stop valve, a hot CO2-rich gas backflow stop valve, a flue gas jacket heat conduction oil inlet stop valve, a built-in heat conduction oil heat exchange tube inlet stop valve, a flue gas dehydration tower temperature sensor, an in-tower level gage and a flue gas jacket heat conduction oil outlet stop valve are respectively connected to the end part of the flue gas dehydration tower with the heating device; and a heat-conducting oil heat exchange pipe outlet stop valve, a water vapor emptying valve and a heat-conducting oil emptying valve are arranged in the heat-conducting oil heat exchange pipe. According to the flue gas dehydration device provided by the utility model, the environmental quality is improved, the formation of white smoke plume can be reduced by removing moisture in flue gas, the pollution to the atmospheric environment is reduced, and meanwhile, pollutants carried in the flue gas can also be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of flue gas treatment, especially to a flue gas dewatering device. BACKGROUND

[0002] In many industrial production processes, such as thermal power generation, steel smelting, chemical industry, etc., a large amount of flue gas will be generated, which usually contains water, particulate matter, sulfur oxides, nitrogen oxides and other components. Effective treatment of flue gas not only reduces environmental pollution, but also recovers valuable resources, meeting the requirements of sustainable development.

[0003] Impact of water in flue gas

[0004] Reduced equipment efficiency: Water in flue gas can condense on the inner walls of pipes and equipment, forming liquid water, which can cause equipment corrosion, blockage, reduce heat transfer efficiency, and affect normal operation and service life of equipment.

[0005] Increased processing difficulty: Flue gas containing a large amount of water will increase the difficulty and cost of subsequent processing, such as desulfurization and denitrification. In addition, water may interact with other pollutants to form more complex compounds, further increasing processing difficulty.

[0006] Impact on emission quality: If the water content in flue gas is too high, white smoke plume may be formed when it is discharged into the atmosphere, affecting the appearance of the environment and possibly carrying some pollutants, causing secondary pollution to the atmospheric environment.

[0007] Limitations of traditional dewatering methods

[0008] High energy consumption: Some traditional flue gas dewatering methods, such as heating and condensation, require a large amount of energy, increasing production costs.

[0009] Limited effect: Some traditional methods are not ideal in terms of dewatering effect, making it difficult to meet increasingly stringent environmental protection requirements.

[0010] Complex equipment: Some traditional dewatering equipment has a complex structure, large footprint, and high maintenance cost, making it difficult to be widely used in industrial sites.

[0011] Therefore, it is necessary to provide a flue gas dewatering device to solve the above technical problems. Utility model content

[0012] The utility model provides a flue gas dewatering device, which solves the problem of water in flue gas of the current flue gas dewatering device, which reduces equipment efficiency, increases processing difficulty, and affects emission quality.

[0013] The utility model provides a kind of flue gas dewatering device to solve the above technical problems, including:

[0014] Inlet pressure sensor, one end of the inlet pressure sensor is connected with inlet cut-off valve, one end of the inlet cut-off valve is respectively connected with flue gas dewatering tower with heating device and cold CO2 gas inlet cut-off valve, the end of the flue gas dewatering tower with heating device is respectively connected with outlet pressure sensor, outlet cut-off valve, hot CO2 gas backflow cut-off valve, flue gas jacket heat transfer oil inlet cut-off valve, built-in heat transfer oil heat exchange pipe inlet cut-off valve, flue gas dewatering tower temperature sensor, tower internal level meter, flue gas jacket heat transfer oil outlet cut-off valve, built-in heat transfer oil heat exchange pipe outlet cut-off valve, water vapor evacuation valve and heat transfer oil exhaust valve;

[0015] Heat transfer oil inlet temperature sensor, the heat transfer oil inlet temperature sensor is arranged on one side of the flue gas jacket heat transfer oil inlet cut-off valve and the built-in heat transfer oil heat exchange pipe inlet cut-off valve.

[0016] Preferably, the inside of the flue gas dewatering tower with heating device is provided with high water-absorbing resin particles.

[0017] Preferably, the high water-absorbing resin particles are used to absorb and remove condensed water in flue gas, and a heat transfer oil heating device is arranged to evaporate and dry the absorbed water, so that the high water-absorbing resin particles can be reused.

[0018] Preferably, the end of the heat transfer oil exhaust valve is provided with a connecting assembly, the connecting assembly includes a connecting pipe, one end of the connecting pipe is connected with a communication mounting sleeve, and the inside of the communication mounting sleeve is provided with a communication mounting head.

[0019] Preferably, the surface of the connecting pipe is provided with a valve.

[0020] Preferably, a conveying assembly is arranged between the two communication mounting heads, the conveying assembly includes a communication pipe, and one side of the communication pipe is connected with a U-shaped conveying pipe.

[0021] Preferably, the U-shaped conveying pipe is provided with a control valve.

[0022] Compared with the related art, the flue gas dewatering device has the following beneficial effects:

[0023] The flue gas dewatering device can remove water from flue gas, reduce the formation of white smoke plume, reduce pollution to the atmospheric environment, and also reduce pollutants carried by flue gas, such as particulate matter, sulfur oxide and nitrogen oxide, thereby further improving environmental quality.

[0024] Protection of equipment: removing water from flue gas can effectively prevent equipment corrosion and blockage, improve the heat transfer efficiency of the equipment, and prolong the service life of the equipment, which is of great significance to reduce the maintenance cost of enterprises and improve the production efficiency.

[0025] Energy saving: some new flue gas dewatering devices adopt advanced technology and materials, which can realize efficient dewatering effect at lower energy consumption.

[0026] Improving resource utilization: in some industrial processes, the dewatered flue gas can be further treated and utilized, such as recovering heat and extracting valuable components, which can improve resource utilization and realize circular economy. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 The first embodiment of the flue gas dewatering device provided by the utility model is shown in the structure diagram.

[0028] Figure 2 The second embodiment of the flue gas dewatering device provided by the utility model is shown in the structure diagram.

[0029] Figure 3 For Figure 2 The A part shown in the enlarged schematic diagram.

[0030] In the figure, 65e is an inlet pressure sensor, 66e is an inlet shut-off valve, 67e is a flue gas dewatering tower with heating device, 68e is a high water-absorbing resin particle, 69e is an outlet pressure sensor, 70e is an outlet shut-off valve, 71e is a hot CO2-rich gas reflux shut-off valve, 72e is a cold CO2-rich gas inlet shut-off valve, 73e is a heat conducting oil inlet temperature sensor, 74e is a flue gas jacket heat conducting oil inlet shut-off valve, 75e is an internal heat conducting oil heat exchange pipe inlet shut-off valve, 76e is a flue gas dewatering tower temperature sensor, 77e is a tower internal level meter, 78e is a flue gas jacket heat conducting oil outlet shut-off valve, 79e is an internal heat conducting oil heat exchange pipe outlet shut-off valve, 80e is a water vapor exhaust valve, 81e is a heat conducting oil exhaust valve, 82e is a connecting assembly, 821e is a connecting pipe, 822e is a communication installation sleeve, 823e is a communication installation head, 824e is a valve, 83e is a conveying assembly, 831e is a communication pipe, 832e is a U-shaped conveying pipe, and 833e is a control valve. DETAILED DESCRIPTION

[0031] The utility model will be further described below in combination with the drawings and embodiments.

[0032] First embodiment

[0033] Please refer to Figure 1 Among them, Figure 1A kind of structure schematic view of the first embodiment of the flue gas dewatering device provided by the utility model.A kind of flue gas dewatering device, comprising:

[0034] Inlet pressure sensor 65e, one end of the inlet pressure sensor 65e is connected with inlet cut-off valve 66e, one end of the inlet cut-off valve 66e is connected with flue gas dewatering tower 67e with heating device and cold rich CO2 gas inlet cut-off valve 72e respectively, the end of the flue gas dewatering tower 67e with heating device is connected with outlet pressure sensor 69e, outlet cut-off valve 70e, hot rich CO2 gas backflow cut-off valve 71e, flue gas jacket heat transfer oil inlet cut-off valve 74e, built-in heat transfer oil heat exchange pipe inlet cut-off valve 75e, flue gas dewatering tower temperature sensor 76e, tower internal level meter 77e, flue gas jacket heat transfer oil outlet cut-off valve 78e, built-in heat transfer oil heat exchange pipe outlet cut-off valve 79e, water vapor exhaust valve 80e and heat transfer oil exhaust valve 81e respectively,

[0035] Heat transfer oil inlet temperature sensor 73e, the heat transfer oil inlet temperature sensor 73e is arranged at one side of the flue gas jacket heat transfer oil inlet cut-off valve 74e and the built-in heat transfer oil heat exchange pipe inlet cut-off valve 75e.

[0036] The flue gas dewatering tower 67e with heating device is internally provided with high water-absorbing resin particles 68e.

[0037] The high water-absorbing resin particles 68e are used to absorb and remove condensed water in flue gas, and heat transfer oil heating device is arranged to evaporate and dry the absorbed water, so that the high water-absorbing resin particles can be reused.

[0038] After the water absorbed by the flue gas dewatering tower 67e is evaporated, the flue gas dewatering tower 67e is cooled using cold rich CO2 gas, and the cooling gas is returned to the gas compressor 46e inlet through the hot rich CO2 gas backflow cut-off valve 71e for re-pressurization and cooling.

[0039] The tower internal material level meter 77e is connected with the outlet cut-off valve 70e, the hot CO2-rich gas reflux cut-off valve 71e, the cold CO2-rich gas import cut-off valve 72e, the flue gas jacket heat conducting oil import cut-off valve 74e, the built-in heat conducting oil heat exchange pipe import cut-off valve 75e, the water vapor exhaust valve 79e and the heat conducting oil exhaust valve 80e, when the water absorption of the super absorbent resin particles 68e reaches a certain degree, the volume expands, then the flue gas jacket heat conducting oil import cut-off valve 74e, the built-in heat conducting oil heat exchange pipe import cut-off valve 75e and the water vapor exhaust valve 79e are opened to evaporate the absorbed water; when the super absorbent resin particles 68e drop to the designed position, the outlet cut-off valve 70e, the flue gas jacket heat conducting oil import cut-off valve 74e, the built-in heat conducting oil heat exchange pipe import cut-off valve 75e and the water vapor exhaust valve 79e are closed, and the hot CO2-rich gas reflux cut-off valve 71e and the cold CO2-rich gas import cut-off valve 72e are opened to cool the flue gas dewatering tower 67e.

[0040] The flue gas dewatering tower temperature sensor 76e is connected with the outlet cut-off valve 70e, the hot CO2-rich gas reflux cut-off valve 71e and the cold CO2-rich gas import cut-off valve 72e; after the temperature of the flue gas dewatering tower 67e drops to the designed working temperature, the outlet cut-off valve 70e, the hot CO2-rich gas reflux cut-off valve 71e and the cold CO2-rich gas import cut-off valve 72e are closed, and the outlet cut-off valve 70e is opened.

[0041] Compared with the related art, the flue gas dewatering device has the following beneficial effects:

[0042] The flue gas dewatering device can improve the environmental quality: by removing the water in the flue gas, the formation of white smoke plume can be reduced, the pollution to the atmospheric environment can be reduced, and the pollutants carried in the flue gas, such as particulate matter, sulfur oxide and nitrogen oxide, can be reduced, thereby further improving the environmental quality.

[0043] The device is protected: removing the water in the flue gas can effectively prevent the corrosion and blockage of the device, improve the heat transfer efficiency of the device and prolong the service life of the device, which is of great significance to reducing the maintenance cost of enterprises and improving the production efficiency.

[0044] Energy is saved: some new flue gas dewatering devices use advanced technology and materials to achieve high-efficiency dewatering effect at low energy consumption.

[0045] The resource utilization rate is improved: in some industrial processes, the dewatered flue gas can be further treated and utilized, such as recovering heat and extracting valuable components, which can improve the resource utilization rate and realize circular economy.

[0046] Second embodiment

[0047] Please refer toFigure 2 and Figure 3 Based on the first embodiment of the present application, a second embodiment of the present application provides another flue gas dewatering device.

[0048] Specifically, the second embodiment of the present application provides a flue gas dewatering device, which is different from the first embodiment in that a flue gas dewatering device is provided with a connecting assembly 82e at the end of the heat conducting oil exhaust valve 81e, the connecting assembly 82e comprises a connecting pipe 821e, one end of the connecting pipe 821e is connected with a communication mounting sleeve 822e, and the inside of the communication mounting sleeve 822e is provided with a communication mounting head 823e.

[0049] The surface of the connecting pipe 821e is provided with a valve 824e.

[0050] The threaded communication sleeve and the threaded communication block are arranged on the side, opposite to the connecting pipe 821e, of the heat conducting oil exhaust valve 81e, so as to facilitate the connection and installation between the heat conducting oil exhaust valve 81e and the connecting pipe 821e.

[0051] The two communication mounting heads 823e are provided with a conveying assembly 83e, and the conveying assembly 83e comprises a communication pipe 831e, and one side of the communication pipe 831e is connected with a U-shaped conveying pipe 832e.

[0052] The U-shaped conveying pipe 832e is provided with a control valve 833e.

[0053] The valve 824e and the control valve 833e facilitate the opening and closing of the connecting pipe 821e and the U-shaped conveying pipe 832e.

[0054] The working principle of the flue gas dewatering device is as follows:

[0055] When the heat conducting oil exhaust valve 81e needs to be replaced due to failure, the valve 824e on the connecting pipe 821e is closed, the control valve 833e on the U-shaped conveying pipe 832e is opened, and then the heat conducting oil exhaust valve 81e is separated from the connecting pipe 821e for replacement.

[0056] Compared with the related art, the flue gas dewatering device has the following beneficial effects:

[0057] The flue gas dewatering device provided by the present application is provided with the connecting assembly 82e at both ends of the heat conducting oil exhaust valve 81e, and the conveying assembly 83e is used, so that when the heat conducting oil exhaust valve 81e fails, the heat conducting oil exhaust valve 81e can be disassembled and replaced without affecting the flow of flue gas.

[0058] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A flue gas dehydrating device, characterized by, The utility model relates to a kind of high-efficiency flue gas dehydration tower, including: Inlet pressure sensor, one end of the inlet pressure sensor is connected with inlet cut-off valve, one end of the inlet cut-off valve is connected with flue gas dehydration tower with heating device and cold CO2 gas inlet cut-off valve respectively, the end of the flue gas dehydration tower with heating device is connected with outlet pressure sensor, outlet cut-off valve, hot CO2 gas backflow cut-off valve, flue gas jacket heat transfer oil inlet cut-off valve, built-in heat transfer oil heat exchange pipe inlet cut-off valve, flue gas dehydration tower temperature sensor, tower level meter, flue gas jacket heat transfer oil outlet cut-off valve, built-in heat transfer oil heat exchange pipe outlet cut-off valve, water vapor evacuation valve and heat transfer oil exhaust valve respectively; Heat transfer oil inlet temperature sensor is arranged on one side of the flue gas jacket heat transfer oil inlet cut-off valve and the built-in heat transfer oil heat exchange pipe inlet cut-off valve.

2. The flue gas dehydrating device according to claim 1, characterized in that, The flue gas dehydration tower with heating device is internally provided with high water-absorbing resin particles.

3. The flue gas dehydrating device according to claim 2, characterized in that, The high water-absorbing resin particles are used to absorb and remove condensed water in flue gas, and heat transfer oil heating device is arranged to evaporate and dry the absorbed water, so that the high water-absorbing resin particles can be reused.

4. The flue gas dehydrating device according to claim 1, characterized in that, The end of the heat transfer oil exhaust valve is provided with a connecting assembly, which includes a connecting pipe, one end of the connecting pipe is connected with a communication mounting sleeve, and the communication mounting sleeve is internally provided with a communication mounting head.

5. The flue gas dehydrating device according to claim 4, characterized in that The surface of the connecting pipe is provided with a valve.

6. The flue gas dehydrating device according to claim 4, characterized in that, A conveying assembly is arranged between the two communication mounting heads, which includes a communication pipe, and one side of the communication pipe is connected with a U-shaped conveying pipe.

7. The flue gas dehydrating device according to claim 6, characterized in that A control valve is arranged on the U-shaped conveying pipe.

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