CN210699535U - Power plant denitration device - Google Patents

Abstract

The utility model discloses a power plant denitrification facility, the on-line screen storage device comprises a base, the lower extreme fixedly connected with strutting arrangement of base, the upper end fixedly connected with reaction tower of base, fixedly connected with fixed plate on the lateral wall of reaction tower, fixed cover is equipped with first stock solution device on the fixed plate, the upper end fixedly connected with water injection mechanism of reaction tower, fixedly connected with accepts the board on the inner wall of reaction tower, the upper end of accepting the board is equipped with furnace, be equipped with the control by temperature change panel on the lateral wall of reaction tower, the furnace upper end is run through and is equipped with spraying mechanism, run through respectively on the relative lateral wall on the reaction tower and be equipped with intake pipe and outlet duct, intake pipe and outlet duct all run through and extend to furnace in, the upper end fixedly connected with second stock solution device of base. The utility model has the advantages of reasonable design, have the advantage of flue gas denitration degree height and convenient centralized processing waste liquid.

Description

Power plant denitration device

Technical Field

The utility model relates to a flue gas denitration technical field especially relates to a denitrification facility of power plant.

Background

The flue gas of a thermal power plant contains a large amount of nitrogen oxides, if the flue gas is not treated, the flue gas is discharged into the atmosphere to generate pollution and form acid rain, in order to further reduce the emission of the nitrogen oxides, the flue gas after combustion must be subjected to denitration treatment, the flue gas denitration technology mainly comprises a dry method and a wet method, and the dry method mainly comprises selective catalytic reduction flue gas denitration and selective non-catalytic reduction denitration.

In the prior art, flue gas that the power plant produced has very strong polluting nature to the atmosphere, needs to carry out flue gas denitration treatment to it, and current equipment flue gas denitration inefficiency, and the inconvenient centralized processing of follow-up waste water that produces moreover, therefore, we have proposed a power plant denitrification facility and have solved above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a denitration device for a power plant.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a denitrification facility of power plant, the on-line screen storage device comprises a base, the lower extreme fixedly connected with strutting arrangement of base, the upper end fixedly connected with reaction tower of base, fixedly connected with fixed plate on the lateral wall of reaction tower, fixed cover is equipped with first stock solution device on the fixed plate, the upper end fixedly connected with water injection mechanism of reaction tower, fixedly connected with accepts the board on the inner wall of reaction tower, the upper end of accepting the board is equipped with furnace, be equipped with the control by temperature change panel on the lateral wall of reaction tower, the furnace upper end runs through and is equipped with sprinkler structure, run through respectively on the relative lateral wall on the reaction tower and be equipped with intake pipe and outlet duct, intake pipe and outlet duct all run through and extend to in the furnace, the upper end fixedly connected with.

Preferably, the supporting device comprises a plurality of supporting legs fixedly connected to the lower end of the base, and the plurality of supporting legs are all at a certain angle with the ground.

Preferably, first stock solution device establishes the reagent box on the fixed plate including fixed cover, the upper end of reagent box is run through and is equipped with the inlet pipe, the upper end of reagent box is run through and is equipped with the drinking-water pipe, the interior bottom that the one end that the drinking-water pipe is located the reagent box is close to the reagent box.

Preferably, water injection mechanism includes the bottom plate of fixed connection in the reaction tower upper end, the upper end fixedly connected with water pump of bottom plate, the input and the equal fixed intercommunication of output of water pump have the return bend, and the other end and the one end that the reagent case was kept away from to the drinking-water pipe of one of them return bend are linked together, and the fixed intercommunication of the other end of another return bend has the water injection pipe.

Preferably, the spray mechanism includes the dead lever of fixed connection top in the furnace, run through fixedly connected with shunt tubes on the lateral wall of dead lever, the fixed intercommunication of lower extreme of shunt tubes has a plurality of high temperature atomizer, the one end that the return bend that corresponds was kept away from to the water injection pipe runs through the upper end of reaction tower and the upper end of furnace in proper order and is linked together with the shunt tubes.

Preferably, the second liquid storage device comprises a liquid storage tank fixedly connected to the upper end of the base, the liquid storage tank is communicated with the reaction tower through a liquid conveying pipe, a transparent panel is arranged on the side wall of the liquid storage tank, a liquid outlet pipe is arranged on the side wall of the liquid storage tank in a penetrating mode, and a valve is arranged on the liquid outlet pipe.

Preferably, the water injection pipe and the shunt pipe are both high-temperature-resistant steel water pipes.

Preferably, the receiving plate is provided with a plurality of liquid leakage holes.

The utility model has the following beneficial effects;

1. the first liquid storage device, the water injection mechanism and the spraying mechanism are matched with each other, the temperature control panel is used for heating the hearth to 900-1000 ℃, then the flue gas is injected into the hearth, the reducing agent in the reagent box is sprayed in the hearth in a large area through the plurality of high-temperature atomizing spray heads, the contact area of the flue gas and the reducing agent is greatly increased through the plurality of spray heads, and the denitration degree is greatly improved;

2. through setting up and accepting board and second stock solution device and mutually supporting, the mixture of the reducing agent that ammonia, water and few unreacted reducing agent that the reducing agent and flue gas reaction come out is accepted the board through a plurality of weeping hole discharges under, enters into the liquid reserve tank through the transfer line and stores at the cooling, makes things convenient for subsequent waste liquid centralized processing.

Drawings

Fig. 1 is a schematic structural diagram of a denitration device of a power plant provided by the utility model;

FIG. 2 is a cross-sectional view of a reaction tower of a denitration device of a power plant provided by the utility model;

fig. 3 is the utility model provides a denitration device of power plant's board structure schematic diagram of accepting.

In the figure: 1 intake pipe, 2 fixed plates, 3 reagent boxes, 4 inlet pipes, 5 drinking-water pipes, 6 bottom plates, 7 water pumps, 8 bent pipes, 9 water injection pipes, 10 temperature control panels, 11 air outlet pipes, 12 infusion pipes, 13 transparent panels, 14 liquid storage tanks, 15 valves, 16 liquid outlet pipes, 17 bases, 18 supporting legs, 19 hearths, 20 high-temperature atomizing nozzles, 21 shunt pipes, 22 fixed rods, 23 bearing plates and 24 reaction towers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a denitration device of a power plant comprises a base 17, a supporting device is fixedly connected with the lower end of the base 17, a reaction tower 24 is fixedly connected with the upper end of the base 17, a fixing plate 2 is fixedly connected with the outer side wall of the reaction tower 24, a first liquid storage device is fixedly sleeved on the fixing plate 2, a water injection mechanism is fixedly connected with the upper end of the reaction tower 24, a bearing plate 23 is fixedly connected with the inner wall of the reaction tower 24, a hearth 19 is arranged at the upper end of the bearing plate 23, a temperature control panel 10 is arranged on the outer side wall of the reaction tower 24, and the hearth, wherein be equipped with from the heater strip of taking, can heat furnace temperature to 900 degrees to 1000 degrees, 19 upper ends of furnace run through and be equipped with spraying mechanism, run through respectively on the relative lateral wall on the reaction tower 24 and be equipped with intake pipe 1 and outlet duct 11, intake pipe 1 all runs through with outlet duct 11 and extends to in the furnace 19, the upper end fixedly connected with second stock solution device of base 17.

Wherein, strutting arrangement includes a plurality of supporting legs 18 of fixed connection at base 17 lower extreme, and a plurality of supporting legs 18 all become certain angle with ground, improve the stability of support.

Wherein, first stock solution device is including fixed cover establishing reagent box 3 on fixed plate 2, and the upper end of reagent box 3 runs through and is equipped with inlet pipe 4, and the upper end of reagent box 3 runs through and is equipped with drinking-water pipe 5, and the one end that drinking-water pipe 5 is located reagent box 3 is close to the interior bottom of reagent box 3, injects into the reductant that can react with the flue gas through inlet pipe 4 in the reagent box 3.

Wherein, water injection mechanism includes bottom plate 6 of fixed connection in 24 upper ends of reaction tower, the upper end fixedly connected with water pump 7 of bottom plate 6, the input of water pump 7 and the equal fixed intercommunication of output have return bend 8, the other end of one of them return bend 8 is linked together with the one end that reagent case 3 was kept away from to drinking-water pipe 5, the fixed intercommunication of the other end of one of them return bend 8 has water injection pipe 9, start water pump 7, the reducing agent in water pump 7 takes out reagent case 3 through drinking-water pipe 5, pour into in the water injection pipe 9.

Wherein, the dead lever 22 at top in furnace 19 is drawn together to the sprinkler structure, run through fixedly connected with shunt tubes 21 on the lateral wall of dead lever 22, the fixed intercommunication of lower extreme of shunt tubes 21 has a plurality of high temperature atomizer 20, the one end that corresponding return bend 8 was kept away from to water injection pipe 9 runs through the upper end of reaction tower 24 in proper order and the upper end of furnace 19 and is linked together with shunt tubes 21, water injection pipe 9 pours into the reductant into shunt tubes 21 in, the blowout of a plurality of high temperature atomizer 20 of rethread, it can improve reaction area of contact to set up a plurality of high temperature atomizer 20.

Wherein, the second liquid storage device includes liquid reserve tank 14 of fixed connection in base 17 upper end, and liquid reserve tank 14 is linked together through transfer line 12 and reaction tower 24, is equipped with transparent panel 13 on the lateral wall of liquid reserve tank 14, runs through on the lateral wall of liquid reserve tank 14 and is equipped with drain pipe 16, is equipped with valve 15 on the drain pipe 16, and transparent panel 13 can observe the liquid level in the liquid reserve tank 14, the convenient processing.

Specifically, the water injection pipe 9 and the shunt pipe 21 are high temperature resistant steel water pipes, which can resist thousands of degrees of temperature, and prevent the internal structure of the water pipe from being damaged due to overhigh temperature in the hearth 19.

Specifically, the receiving plate 23 is provided with a plurality of liquid leaking holes, and the liquid leaking holes can leak the reacted ammonia, water and a small amount of unreacted reducing agent to the bottom in the reaction tower 24.

In the utility model, an operator controls the temperature control panel 10 to control the temperature inside the hearth 19 to reach 900 to 1000 degrees, the operator injects the reducing agent of flue gas into the reagent box 3 through the inlet pipe 4, then injects the flue gas to be desulfurized into the hearth 19 through the inlet pipe 1, then the water pump 7 is started through the controller in the prior art, the reducing agent in the reagent box 3 is pumped into the water injection pipe 9 by the water pump 7, the reducing agent is injected into the shunt pipe 21 by the water injection pipe 9, and finally is sprayed out through the high-temperature atomizing nozzles 20, the sprayed reducing agent is in contact reaction with the flue gas for desulfurization to generate ammonia and water, the flue gas after reaction is discharged through the outlet pipe 11 to be detected in the subsequent process, the generated ammonia, water and a small amount of unreacted reducing agent flow into the inner bottom of the reaction tower 24 through the liquid leakage hole on the bearing plate 23, and then enters the liquid storage tank 14 for cooling and storage through the liquid transmission pipe, the subsequent same treatment is convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides a denitration device of power plant, includes base (17), its characterized in that, the lower extreme fixedly connected with strutting arrangement of base (17), the upper end fixedly connected with reaction tower (24) of base (17), fixedly connected with fixed plate (2) on the lateral wall of reaction tower (24), fixed cover is equipped with first stock solution device on fixed plate (2), the upper end fixedly connected with water injection mechanism of reaction tower (24), fixedly connected with accepts board (23) on the inner wall of reaction tower (24), the upper end of accepting board (23) is equipped with furnace (19), be equipped with temperature control panel (10) on the lateral wall of reaction tower (24), furnace (19) upper end runs through and is equipped with spraying mechanism, run through respectively on relative lateral wall on reaction tower (24) and be equipped with intake pipe (1) and outlet duct (11), intake pipe (1) all run through with outlet duct (11) and extend to furnace (19) in, the upper end of the base (17) is fixedly connected with a second liquid storage device.

2. A plant de-nitrification apparatus according to claim 1, wherein the support means comprises a plurality of support legs (18) fixedly connected to a lower end of the base (17), the plurality of support legs (18) being angled with respect to the ground.

3. The denitration device of power plant according to claim 1, characterized in that, the first stock solution device includes that fixed cover establishes reagent box (3) on fixed plate (2), the upper end of reagent box (3) is run through and is equipped with inlet pipe (4), the upper end of reagent box (3) is run through and is equipped with drinking-water pipe (5), the interior bottom that one end that drinking-water pipe (5) are located reagent box (3) is close to reagent box (3).

4. A denitration device of power plant according to claim 3, characterized in that the water injection mechanism includes a bottom plate (6) fixedly connected to the upper end of the reaction tower (24), a water pump (7) is fixedly connected to the upper end of the bottom plate (6), the input end and the output end of the water pump (7) are both fixedly communicated with an elbow pipe (8), the other end of one elbow pipe (8) is communicated with one end of the pumping pipe (5) far away from the reagent box (3), and the other end of the other elbow pipe (8) is fixedly communicated with a water injection pipe (9).

5. The denitration device of the power plant according to claim 4, characterized in that the spraying mechanism comprises a fixing rod (22) fixedly connected to the inner top of the furnace (19), a shunt pipe (21) is fixedly connected to the side wall of the fixing rod (22) in a penetrating manner, the lower end of the shunt pipe (21) is fixedly communicated with a plurality of high-temperature atomizing nozzles (20), and one end, far away from the corresponding bent pipe (8), of the water injection pipe (9) sequentially penetrates through the upper end of the reaction tower (24) and the upper end of the furnace (19) and is communicated with the shunt pipe (21).

6. A denitration device of a power plant according to claim 1, characterized in that the second liquid storage device comprises a liquid storage tank (14) fixedly connected to the upper end of a base (17), the liquid storage tank (14) is communicated with a reaction tower (24) through a liquid conveying pipe (12), a transparent panel (13) is arranged on the side wall of the liquid storage tank (14), a liquid outlet pipe (16) is arranged on the side wall of the liquid storage tank (14) in a penetrating manner, and a valve (15) is arranged on the liquid outlet pipe (16).

7. A power plant denitration device according to claim 5, wherein the water injection pipe (9) and the flow dividing pipe (21) are both high temperature resistant steel water pipes.

8. A plant denitration device according to claim 1, wherein the receiving plate (23) is provided with a plurality of weep holes.

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