A flue gas desulfurization and denitrification tower

Abstract

The utility model discloses a flue gas desulfurization and denitrification tower, comprising a desulfurization tower and a pipeline, wherein a connecting sleeve is commonly sleeved between the two pipelines, and two groups of a plurality of fluid grooves arranged in an annular manner are arranged on the connecting sleeve, wherein each group of the fluid grooves has four fluid grooves, and each group of the fluid grooves is filled with extrusion blocks, and a clay smearing layer is arranged on the inner wall of the connecting sleeve, and each time the corresponding fluid grooves are filled, it should be ensured that the clay is fully piled in the fluid grooves, so that the smearing is even, the operation is simple, and uneven smearing will not occur, thereby ensuring the sealing effect and the sealing life, being able to keep the two sealing distances very close, ensuring that the bonding length is sufficient and even, and no laborious alignment is required, and no worry is required about the problem of short sealing life resulting from a short sealing distance at one end.

Description

Technical field:

[0001] The utility model relates to the field of power generation engineering, in particular to a flue gas desulfurization and denitrification tower. Background technology:

[0002] Some of the existing power generation projects in my country use coal gas produced by ore-fired furnaces as fuel for power generation. During the combustion of coal gas in the boiler, a large amount of NOX and SO2 are generated, which cannot meet the GB13233-2011 "Air Pollution Emission Standards for Thermal Power Plants" and "Comprehensive Emission Standards for Air Pollutants". It needs to be strictly treated to meet the emission requirements stipulated by the state, so it is necessary to carry out related work such as flue gas treatment systems as soon as possible to ensure the normal operation of power plants. In power generation projects, the processes used for desulfurization and denitrification are mostly carried out using desulfurization towers, in which desulfurization systems and denitrification systems are installed. However, since the circulating water is extremely corrosive, it seriously corrodes the water pumps and pipelines. In order to avoid corrosion to the equipment and thus affect the normal operation of the equipment, most of them use new ultra-high molecular polyethylene pumps and glass fiber reinforced plastic pipelines.

[0003] However, when FRP pipes are connected at the interface, the connection method mostly uses a combination of sleeves and putty. During the sealing process, putty is applied to the outer walls near the two ports in advance, and then the two ends of the sleeve are respectively put on the ports coated with putty, and then wait for air drying before use. This method may cause uneven application of putty, or there may be tiny gaps, resulting in leaks and smoke leakage. In the long run, it will pollute the environment and fail to meet national emission standards. Utility model content:

[0004] The utility model aims to provide a flue gas desulfurization and denitrification tower.

[0005] The utility model is implemented by the following technical solutions:

[0006] A flue gas desulfurization and denitrification tower comprises a desulfurization tower and a pipeline. A connecting sleeve is commonly connected between the two pipelines. Two groups of multiple flow grooves arranged in an annular manner are arranged on the connecting sleeve. Each group of flow grooves has four flow grooves. Each group of flow grooves is filled with extrusion blocks. A clay coating layer is arranged on the inner wall of the connecting sleeve. One side cross section of each clay coating layer is inclined.

[0007] Preferably, two limit rings are fixedly installed in the connecting sleeve, a slidably connected T-rod is inserted into each limit ring, a spring is sleeved on each T-rod, one end of each T-rod is fixedly connected to a top block, and a top ring is fixedly connected between the side walls of multiple top blocks each time. The outer ring wall of the top ring is inclined and the top ring is slidably connected to the connecting sleeve.

[0008] Advantages of the utility model: each time the corresponding fluid groove is filled, it should be ensured that the glue is fully filled in the fluid groove, so that the smearing is even, the operation is simple, and there will be no uneven smearing, ensuring the sealing effect and sealing life, and being able to keep the two sealing distances very close, ensuring that the bonding length is sufficient and even, without the need to laboriously align them, and without worrying about the problem of short sealing distance at one end resulting in short sealing life. Description of the drawings:

[0009] Figure 1 It is a front view of the structure of the utility model;

[0010] Figure 2 This utility model Figure 1 Connection structure diagram of the pipeline in the figure.

[0011] In the figure: desulfurization tower 1, pipeline 2, connecting sleeve 3, limit ring 4, T-bar 5, spring 6, top block 7, top ring 8, fluid trough 9, extrusion block 10, and clay coating layer 11. Specific implementation method:

[0012] like Figure 1 to Figure 2 As shown, a flue gas desulfurization and denitrification tower includes a desulfurization tower 1 and a pipeline 2. A connecting sleeve 3 is commonly connected between the two pipelines 2. Two groups of annularly arranged multiple fluid grooves 9 are arranged on the connecting sleeve 3. Each group of fluid grooves 9 has four fluid grooves. Each group of fluid grooves 9 is filled with extrusion blocks 10. A clay coating layer 11 is arranged on the inner wall of the connecting sleeve 3. The cross section of one side of each clay coating layer 11 is inclined. When applying the clay, the connecting sleeve 3 is now sleeved on the two pipelines 2, and then the two groups of fluid grooves 9 are directly filled into the inside. After the fluid groove 9 at the top is filled, After that, rotate it to cover the extrusion block 10 so that the other fluid groove 9 is facing upwards, and then fill multiple fluid grooves 9 in turn to complete the smearing. A glue smear layer 11 is arranged in the connecting sleeve 3. The glue smear layer 11 is annular and is inclined to one side inside, so that the glue will accumulate in the inclined direction and then be squeezed evenly during the rotation process. Each time the corresponding fluid groove 9 is filled, it should be ensured that the glue is filled in the fluid groove 9. In this way, the smearing is even, the operation is simple, and there will be no uneven smearing, which ensures the sealing effect and sealing life.

[0013] At the same time, in the desulfurization tower 1, due to the large flue gas flow and high flow rate, the operating cost increases (the circulating water is carried away by the flue gas, and the medicines in the circulating water are carried away together, resulting in an increase in the amount of water replenishment and the amount of medicine added). A demister is installed in the curved channel of the desulfurization tower 1. Under the action of inertia and gravity, the droplets entrained in the air flow are separated. The desulfurized flue gas flows through the demister at a certain speed, and the flue gas is quickly and continuously changed in direction. Due to the action of centrifugal force and inertia, the droplets in the flue gas hit the demister blades and are captured. The droplets gather to form a water flow, which falls to the alkali liquid pool at the bottom of the tower due to the action of gravity and is recycled, which can effectively guarantee energy conservation and environmental protection.

[0014] Two limiting rings 4 are fixedly installed in the connecting sleeve 3, and a slidably connected T-bar 5 is inserted into each limiting ring 4, and a spring 6 is sleeved on each T-bar 5. One end of each T-bar 5 is fixedly connected to a top block 7, and a top ring 8 is fixedly connected between the side walls of multiple top blocks 7 each time. The outer ring wall of the top ring 8 is inclined and the top ring 8 is slidably connected to the connecting sleeve 3. When installing, first insert the pipe 2 on one side into the connecting sleeve 3, and then squeeze the multiple springs 6 on one side so that the top ring 8 on one side fits tightly with the corresponding pipe 2, and the T-bar 5 is sliding, so that the port of the pipe 2 on the other side can also be inserted therein. In this way, when the insertion is completed, the butterfly spring 6 will be stretched open by force, and the two top rings 8 will always fit with the corresponding pipe 2 ports, thereby keeping the two sealing distances very close, ensuring that the bonding length is sufficient and average, without the need to laboriously align, and without worrying about the problem of short sealing life caused by a short sealing distance at one end.

[0015] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas desulfurization and denitrification tower, characterized in that: It includes a desulfurization tower and a pipeline. A connecting sleeve is commonly connected between the two pipelines. The connecting sleeve is provided with two groups of multiple fluid troughs arranged in an annular manner. Each group of fluid troughs has four fluid troughs. Each group of fluid troughs is filled with extrusion blocks. A clay coating layer is provided on the inner wall of the connecting sleeve. One side cross-section of each clay coating layer is inclined.

2. A flue gas desulfurization and denitrification tower according to claim 1, characterized in that: Two limit rings are fixedly installed in the connecting sleeve, a slidably connected T-rod is inserted into each limit ring, a spring is sleeved on each T-rod, one end of each T-rod is fixedly connected to a top block, and a top ring is fixedly connected between the side walls of multiple top blocks each time, the outer ring wall of the top ring is inclined and the top ring is slidably connected to the connecting sleeve.

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