CN215782527U - Flue gas desulfurization device of thermal power plant - Google Patents

Flue gas desulfurization device of thermal power plant Download PDF

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Publication number
CN215782527U
CN215782527U CN202122079907.XU CN202122079907U CN215782527U CN 215782527 U CN215782527 U CN 215782527U CN 202122079907 U CN202122079907 U CN 202122079907U CN 215782527 U CN215782527 U CN 215782527U
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China
Prior art keywords
water bath
gas distribution
filter
water
power plant
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CN202122079907.XU
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Chinese (zh)
Inventor
李军
张雷
韩刚
王崇
王杰
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Baotou Second Thermal Power Plant North United Power Corp
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Baotou Second Thermal Power Plant North United Power Corp
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Abstract

The utility model discloses a flue gas desulfurization device for a thermal power plant, which comprises a desulfurization device outer shell, a first wet filter, a second wet filter and a water bath filter, wherein a flue gas access pipe of the thermal power plant is arranged on one side of the lower section of the desulfurization device outer shell, the first wet filter is arranged on the lower section in the desulfurization device outer shell, the second wet filter is arranged on the upper section in the desulfurization device outer shell, and the water bath filter is arranged on the middle section in the desulfurization device outer shell. Compared with the prior art, the utility model adopts a water bath filtering mode arranged between the two groups of spraying filters, so that the flue gas can be cooled, dedusted and desulfurized, a good filtering effect is achieved, the subsequent treatment process is reduced or the emission standard can be directly reached, the trouble and labor are saved, the water resource is saved, and the utility model has the value of popularization and application.

Description

Flue gas desulfurization device of thermal power plant
Technical Field
The utility model relates to an environment-friendly treatment device for flue gas of a thermal power plant, in particular to a flue gas desulfurization device of the thermal power plant.
Background
A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. However, flue gas combusted in a thermal power plant cannot be directly discharged, the direct discharge can cause environmental pollution, and a desulfurization device for treating the flue gas in the prior art has low efficiency, so that multiple times of filtration or combination of multiple treatment processes is required to reach the discharge standard, and therefore, an improvement space exists.
Disclosure of Invention
The utility model aims to provide a flue gas desulfurization device for a thermal power plant.
In order to achieve the purpose, the utility model is implemented according to the following technical scheme:
the flue gas purification device comprises a desulfurization device outer shell, a first wet filter, a second wet filter and a water bath filter, wherein a flue gas access pipe of a thermal power plant is arranged on one side of the lower section of the desulfurization device outer shell, the first wet filter is arranged on the lower section in the desulfurization device outer shell, the second wet filter is arranged on the upper section in the desulfurization device outer shell, and the water bath filter is arranged on the middle section in the desulfurization device outer shell.
Further, the first wet filter comprises a lower primary high-temperature-resistant filter element and a lower filter element spraying device, the lower primary high-temperature-resistant filter element is fixedly arranged at the lower section in the outer shell of the desulfurization device, the lower filter element spraying devices are multiple, the lower filter element spraying devices are uniformly distributed above the lower primary high-temperature-resistant filter element, and the lower filter element spraying devices are connected with a water supply pipe of the spraying devices.
Furthermore, the second wet filter comprises an upper fine filter element and an upper filter element spraying device, the upper fine filter element is fixedly arranged at the upper section in the outer shell of the desulfurization device, the upper filter element spraying devices are a plurality of, the upper filter element spraying devices are uniformly distributed above the upper fine filter element, and the upper filter element spraying devices are connected with a water supply pipe of the spraying devices.
The water bath filter comprises a water bath filter water tank structure and a water bath gas distribution device, wherein a gas distribution inlet tank and a gas distribution outlet pipe are arranged at the lower end of the water bath gas distribution device, the gas distribution inlet tank is communicated and connected with the gas distribution outlet pipe, the lower end of the gas distribution outlet pipe is positioned at the lower end in the water bath filter water tank structure, and the water bath filter water tank structure is filled with filtered water.
Preferably, the water bath filtering water tank structure and the water bath gas distribution device are both provided in plurality, the gas distribution inlet tank is arranged in the middle of the lower end of the water bath gas distribution device, the gas distribution outlet pipes are arranged on both sides of the lower end of the water bath gas distribution device, and the gas distribution outlet pipes on both sides of the lower end of the water bath gas distribution device are respectively positioned at the lower ends of the two adjacent water bath filtering water tank structures.
As an improvement, a plurality of gas distribution delivery pipes are arranged on both sides of the lower end of the water bath gas distribution device, the gas distribution delivery pipes are uniformly distributed on both sides of the lower end of the water bath gas distribution device, and the gas distribution delivery pipes are located at the lower end of the water bath filtering water tank structure.
As an improvement, the upper section in the water bath filtering water tank structure is filled with a water bath gas filtering sponge, and the lower end of the gas distribution delivery pipe penetrates through the water bath gas filtering sponge and is positioned at the lower end in the water bath filtering water tank structure.
Further, the bottom of desulphurization unit shell body is provided with desulfurization waste water collecting pit, desulfurization waste water collecting pit's lower extreme one side is provided with the waste water discharge pipe, the waste water discharge pipe with communicate with each other between the desulfurization waste water collecting pit and be connected.
The utility model has the beneficial effects that:
compared with the prior art, the flue gas desulfurization device for the thermal power plant adopts a water bath filtering mode arranged between two groups of spraying filters, so that the flue gas can be cooled, dedusted and desulfurized, a good filtering effect is achieved, the subsequent treatment process is reduced or the emission standard can be directly reached, the trouble and labor are saved, the water resource is saved, and the flue gas desulfurization device has popularization and application values.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a schematic side view of a water bath gas distribution device;
FIG. 4 is a schematic view of the bottom structure of the gas distribution device of the water bath.
Detailed Description
The utility model will be further described with reference to the drawings and specific embodiments, which are illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1-4: the flue gas purification device comprises a desulfurization device outer shell 1, a first wet filter, a second wet filter and a water bath filter, wherein a flue gas inlet pipe 7 of a thermal power plant is arranged on one side of the lower section of the desulfurization device outer shell 1, the first wet filter is arranged on the lower section in the desulfurization device outer shell 1, the second wet filter is arranged on the upper section in the desulfurization device outer shell 1, and the water bath filter is arranged on the middle section in the desulfurization device outer shell 1.
Further, first wet filter comprises lower primary high temperature resistant filter core 2 and lower filter core spray set 3, lower primary high temperature resistant filter core 2 fixed set up in hypomere in the desulphurization unit shell body 1, lower filter core spray set 3 is a plurality of, and is a plurality of lower filter core spray set 3 evenly distributed set up in the top of lower primary high temperature resistant filter core 2, it is a plurality of lower filter core spray set 3 all is connected with spray set delivery pipe 6.
Further, the second wet filter comprises an upper fine filter element 4 and an upper filter element spraying device 5, the upper fine filter element 4 is fixedly arranged at the upper section in the outer shell 1 of the desulfurization device, the upper filter element spraying devices 5 are multiple, the upper filter element spraying devices 5 are uniformly distributed above the upper fine filter element 4, and the upper filter element spraying devices 5 are connected with a spraying device water supply pipe 6.
Specifically, the water bath filter comprises a water bath filter water tank structure 10 and a water bath gas distribution device 11, wherein a gas distribution inlet tank 12 and a gas distribution outlet pipe 13 are arranged at the lower end of the water bath gas distribution device 11, the gas distribution inlet tank 12 is communicated and connected with the gas distribution outlet pipe 13, the lower end of the gas distribution outlet pipe 13 is positioned at the lower end in the water bath filter water tank structure 10, and the water bath filter water tank structure 10 is filled with filtered water.
Preferably, the water bath filtering water tank structure 10 and the water bath gas distribution device 11 are both provided in plurality, the gas distribution inlet tank 12 is disposed in the middle of the lower end of the water bath gas distribution device 11, the gas distribution outlet pipes 13 are disposed on both sides of the lower end of the water bath gas distribution device 11, and the gas distribution outlet pipes 13 on both sides of the lower end of the water bath gas distribution device 11 are respectively located at the lower ends of two adjacent water bath filtering water tank structures 10.
As an improvement, a plurality of gas distribution delivery pipes 13 are arranged on both sides of the lower end of the water bath gas distribution device 11, the plurality of gas distribution delivery pipes 13 are uniformly distributed on both sides of the lower end of the water bath gas distribution device 11, and the plurality of gas distribution delivery pipes 13 are located at the lower end of the water bath filter water tank structure 10.
As an improvement, a water-bath gas filtering sponge 14 is filled in the upper section of the water-bath filtering water tank structure 10, and the lower end of the gas distribution delivery pipe 13 penetrates through the water-bath gas filtering sponge 14 and is located at the lower end of the water-bath filtering water tank structure 10.
Further, the bottom of desulphurization unit shell body 1 is provided with desulfurization waste water collecting pit 8, the lower extreme one side of desulfurization waste water collecting pit 8 is provided with waste water discharge pipe 9, waste water discharge pipe 9 with communicate with each other between the desulfurization waste water collecting pit 8 and be connected.
The working principle of the utility model is as follows:
flue gas generated by power generation of a thermal power plant is connected into a desulfurization device shell body 1 through a flue gas connecting pipe 7 of the thermal power plant, a water source is connected into a water supply pipe 6 of a spraying device, water flow simultaneously sprays a lower primary high-temperature-resistant filter element 2 and an upper fine filter element 4 through a lower filter element spraying device 3 and an upper filter element spraying device 5, wherein the lower primary high-temperature-resistant filter element 2 filters preliminarily larger particles, the upper fine filter element 4 is used for final fine filtration, the flue gas is filtered by the lower primary high-temperature-resistant filter element 2 and then enters a plurality of gas distribution leading-out pipes 13 through a gas distribution air inlet groove 12 arranged on a water bath gas distribution device 11 to be shunted, water bath filtration and cooling are carried out in water in a water bath filter water tank structure 10, a water bath gas filter sponge 14 is arranged in the water bath filter tank structure 10 and can filter the flue gas and can stay in the water for a longer time, the uncovered design in top of water bath filter tank structure 10, and be located the below of overhead essence filter core 4, the water that sprays overhead essence filter core 4 through overhead filter core spray set 5 can fall into water bath filter tank structure 10, thereby guarantee to be full water state in the water bath filter tank structure 10 all the time, rivers overflow water bath filter tank structure 10 after fall into on the primary high temperature resistant filter core 2 of underplacement, also can carry out the humidification to the primary high temperature resistant filter core 2 of underplacement, the filter core spray set 3 of undermounting is deuterogamied, make 2 humidity of the primary high temperature resistant filter core of undermounting higher, more be fit for elementary high temperature flue gas filtration, waste water through filtering the water bath falls into desulfurization waste water collecting pit 8, discharge after other waste water discharge treatment equipment handles through waste water discharge pipe 9.
The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a flue gas desulfurization device of thermal power plant which characterized in that: including desulphurization unit shell body (1), first wet filter, second wet filter and water bath filter, hypomere one side of desulphurization unit shell body (1) sets up flue gas access pipe (7) of thermal power plant, first wet filter set up in hypomere in desulphurization unit shell body (1), second wet filter set up in upper segment in desulphurization unit shell body (1), the water bath filter set up in middle section in desulphurization unit shell body (1).
2. The flue gas desulfurization apparatus for a thermal power plant according to claim 1, characterized in that: first wet filter is by putting elementary high temperature resistant filter core (2) down and putting filter core spray set (3) down and constitute, put elementary high temperature resistant filter core (2) down fixed set up in hypomere in desulphurization unit shell body (1), put filter core spray set (3) down and be a plurality of, it is a plurality of put filter core spray set (3) evenly distributed down set up in put the top of elementary high temperature resistant filter core (2) down, it is a plurality of put filter core spray set (3) down all be connected with spray set delivery pipe (6).
3. The flue gas desulfurization apparatus for a thermal power plant according to claim 1, characterized in that: the second wet filter comprises an upper fine filter element (4) and an upper filter element spraying device (5), the upper fine filter element (4) is fixedly arranged at the upper section in the desulfurization device shell (1), the upper filter element spraying device (5) is multiple, and the upper filter element spraying device (5) is uniformly distributed above the upper fine filter element (4) and is connected with a spraying device water supply pipe (6).
4. The flue gas desulfurization apparatus for a thermal power plant according to claim 1, characterized in that: the water bath filter comprises a water bath filtering water tank structure (10) and a water bath gas distribution device (11), wherein a gas distribution inlet tank (12) and a gas distribution outlet pipe (13) are arranged at the lower end of the water bath gas distribution device (11), the gas distribution inlet tank (12) is communicated with the gas distribution outlet pipe (13) and is connected with the gas distribution inlet tank, the lower end of the gas distribution outlet pipe (13) is positioned at the lower end in the water bath filtering water tank structure (10), and the water bath filtering water tank structure (10) is filled with filtered water.
5. The flue gas desulfurization apparatus for a thermal power plant according to claim 4, characterized in that: the water bath filtering water tank structure (10) and the water bath gas distribution device (11) are both multiple, the middle part of the lower end of the water bath gas distribution device (11) is provided with the gas distribution air inlet tank (12), the two sides of the lower end of the water bath gas distribution device (11) are provided with the gas distribution outlet pipes (13), and the gas distribution outlet pipes (13) on the two sides of the lower end of the water bath gas distribution device (11) are respectively positioned at the lower ends of the two adjacent water bath filtering water tank structures (10).
6. The flue gas desulfurization apparatus for a thermal power plant according to claim 5, characterized in that: the both sides of water bath gas distribution device (11) lower extreme all set up a plurality ofly gas distribution contact tube (13), it is a plurality of gas distribution contact tube (13) evenly distributed set up in the lower extreme both sides of water bath gas distribution device (11), and it is a plurality of gas distribution contact tube (13) all are located the lower extreme in water bath filter tank structure (10).
7. The flue gas desulfurization apparatus for a thermal power plant according to any one of claims 4 to 6, characterized in that: the water bath filtering water tank structure is characterized in that a water bath gas filtering sponge (14) is filled in the upper section of the water bath filtering water tank structure (10), and the lower end of the gas distribution delivery pipe (13) penetrates through the lower end of the water bath gas filtering sponge (14) located in the water bath filtering water tank structure (10).
8. The flue gas desulfurization apparatus for a thermal power plant according to claim 1, characterized in that: the bottom of desulphurization unit shell body (1) is provided with desulfurization waste water collecting pit (8), the lower extreme one side of desulfurization waste water collecting pit (8) is provided with waste water discharge pipe (9), waste water discharge pipe (9) with communicate with each other between desulfurization waste water collecting pit (8) and be connected.
CN202122079907.XU 2021-08-31 2021-08-31 Flue gas desulfurization device of thermal power plant Active CN215782527U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122079907.XU CN215782527U (en) 2021-08-31 2021-08-31 Flue gas desulfurization device of thermal power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122079907.XU CN215782527U (en) 2021-08-31 2021-08-31 Flue gas desulfurization device of thermal power plant

Publications (1)

Publication Number Publication Date
CN215782527U true CN215782527U (en) 2022-02-11

Family

ID=80153897

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122079907.XU Active CN215782527U (en) 2021-08-31 2021-08-31 Flue gas desulfurization device of thermal power plant

Country Status (1)

Country Link
CN (1) CN215782527U (en)

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