Generator set tail gas denitration device

Abstract

The utility model discloses a generator set tail gas denitration device which comprises a denitration bin, one end of the denitration bin is connected with a gas inlet pipe in an inserted mode, the top of the gas inlet pipe is connected with a urea spray gun in an inserted mode, the other end of the denitration bin is fixedly connected with an exhaust pipe, the bottom of the denitration bin is connected with a drainage pipe in an inserted mode, and a first dispersion box and a second dispersion box are connected in the denitration bin in a clamped mode. And the first dispersion box and the second dispersion box are clamped. Tail gas mixed with urea liquid enters the denitration bin and then enters the space between the first dispersion box and the second dispersion box from the through holes of the first dispersion box, so that the tail gas is primarily dispersed, and then the tail gas is discharged out of the first dispersion box and the second dispersion box from the through holes of the second dispersion box, so that the tail gas is further dispersed; therefore, the mist is uniformly contacted with the first denitration plate, the second denitration plate and the third denitration plate, and the utilization rate of the first denitration plate, the second denitration plate and the third denitration plate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas denitration device for a generator set. Background Art

[0002] At present, the flue gas denitrification of gas-fired units refers to the National V standard in the vehicle exhaust emission standard, that is, the nitrogen oxide concentration emission limit does not exceed 2g / Kw·h. Regardless of whether it is an imported unit or a domestic unit, the nitrogen oxide concentration in the exhaust gas cannot meet this requirement.

[0003] At present, in the prior art, the exhaust gas is in direct contact with the denitration plate. After long-term use, the center part fails, while the edge utilization rate is not high, which reduces the use effect of the denitration plate. At the same time, after the exhaust gas denitration is completed, there is a risk that the water vapor generated will condense and flow back to wet the denitration plate. Therefore, a generator set exhaust gas denitration device is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings of low utilization rate of denitration plates and condensation and reflux of water vapor in the prior art, and proposes a generator set tail gas denitration device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A generator set exhaust denitration device comprises a denitration bin, one end of the denitration bin is plugged with an air intake pipe, the top of the air intake pipe is plugged with a urea spray gun, the other end of the denitration bin is fixedly connected with an exhaust pipe, the bottom of the denitration bin is plugged with a drain pipe, a first dispersion box and a second dispersion box are clamped in the denitration bin, the first dispersion box is clamped with the second dispersion box, a plurality of through holes are provided on one side of the first dispersion box and the second dispersion box, and a first denitration plate, a second denitration plate and a third denitration plate are sequentially clamped in the denitration bin from left to right.

[0007] Furthermore, two brackets are fixedly connected to the bottom outer wall of the denitrification bin.

[0008] Furthermore, a regulating valve is provided on the drainage pipe.

[0009] Furthermore, a dustproof net is clamped in the exhaust pipe.

[0010] Furthermore, a sealing cover is clamped on one end of the denitration bin.

[0011] Furthermore, the first dispersion box and the second dispersion box are located on one side of the first denitrification plate.

[0012] The beneficial effects of the utility model are:

[0013] 1. The tail gas mixed with urea solution enters the denitration bin, and then enters the space between the first dispersion box and the second dispersion box through the through holes of the first dispersion box, thereby preliminarily dispersing the tail gas. Then, it discharges from the through holes of the second dispersion box, further dispersing the tail gas, so that the mist uniformly contacts the first denitration plate, the second denitration plate, and the third denitration plate, improving the utilization rate of the first denitration plate, the first denitration plate, and the third denitration plate.

[0014] 2. The generated water vapor condenses and is stored in the drain pipe. Then, the regulating valve is opened to discharge the condensed water in the drain pipe, thus preventing the condensed water from wetting the denitration plate. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a tail gas denitration device for a generator set proposed by the present utility model;

[0016] Figure 2 is a sectional structural schematic diagram of a tail gas denitration device for a generator set proposed by the present utility model;

[0017] Figure 3 is a partial structural schematic diagram of a tail gas denitration device for a generator set proposed by the present utility model.

[0018] In the figure: 1, denitration bin; 2, intake pipe; 3, urea spray gun; 4, support; 5, drain pipe; 6, regulating valve; 7, exhaust pipe; 8, dust-proof net; 9, first dispersion box; 10, second dispersion box; 11, through hole; 12, cover; 13, first denitration plate; 14, second denitration plate; 15, third denitration plate. Detailed Embodiment

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Refer to Figures 1 - 3, a denitration device for the tail gas of a generator set, comprising a denitration chamber 1. One end of the denitration chamber 1 is inserted with an intake pipe 2, and the top of the intake pipe 2 is inserted with a urea spray gun 3. The urea solution is sprayed into the intake pipe 2 through the urea spray gun 3, so that the tail gas is mixed with the urea solution. The other end of the denitration chamber 1 is welded with an exhaust pipe 7, and the bottom of the denitration chamber 1 is inserted with a drain pipe 5. A first dispersion box 9 and a second dispersion box 10 are clamped in the denitration chamber 1. The first dispersion box 9 and the second dispersion box 10 are clamped with each other. A plurality of through holes 11 are provided on one side of each of the first dispersion box 9 and the second dispersion box 10. A first denitration plate 13, a second denitration plate 14 and a third denitration plate 15 are clamped in the denitration chamber 1 from left to right in sequence. The tail gas mixed with the urea solution enters the denitration chamber 1 and then enters between the first dispersion box 9 and the second dispersion box 10 through the through holes 11 of the first dispersion box 9, so as to preliminarily disperse the tail gas. Then, it exits from the through holes 11 of the second dispersion box 10 and further disperses the tail gas, so that the mist uniformly contacts the first denitration plate 13, the second denitration plate 14 and the third denitration plate 15.

[0021] Two brackets 4 are fixed to the bottom outer wall of the denitration chamber 1 by bolts to support the denitration chamber 1 through the brackets 4. A regulating valve 6 is provided on the drain pipe 5. When the regulating valve 6 is opened, the condensed water in the drain pipe 5 is discharged. A dust-proof net 8 is clamped in the exhaust pipe 7 to prevent dust from entering the exhaust pipe 7. One end of the denitration chamber 1 is clamped with a cover 12. The design of the cover 12 facilitates the replacement of the first denitration plate 13, the second denitration plate 14 and the third denitration plate 15. The first dispersion box 9 and the second dispersion box 10 are located on one side of the first denitration plate 13.

[0022] The working principle of this embodiment: During use, the tail gas is input into the intake pipe 2. At the same time, the urea solution is sprayed into the intake pipe 2 through the urea spray gun 3, so that the tail gas is mixed with the urea solution. Then, the tail gas mixed with the urea solution enters the denitration chamber 1 and then enters between the first dispersion box 9 and the second dispersion box 10 through the through holes 11 of the first dispersion box 9, so as to preliminarily disperse the tail gas. Then, it exits from the through holes 11 of the second dispersion box 10 and further disperses the tail gas, so that the mist uniformly contacts the first denitration plate 13, the second denitration plate 14 and the third denitration plate 15. Then, the tail gas sequentially passes through the first denitration plate 13, the second denitration plate 14 and the third denitration plate 15, so as to realize the denitration treatment. Then, the generated water vapor condenses and falls into the drain pipe 5 for storage. Then, the regulating valve 6 is opened to discharge the condensed water in the drain pipe 5.

[0023] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A generator set tail gas denitration device, comprising a denitration bin (1), characterized in that: An air inlet pipe (2) is plugged into one end of the denitration bin (1), a urea spray gun (3) is plugged into the top of the air inlet pipe (2), an exhaust pipe (7) is fixedly connected to the other end of the denitration bin (1), a drain pipe (5) is plugged into the bottom of the denitration bin (1), a first dispersion box (9) and a second dispersion box (10) are clamped into the denitration bin (1), the first dispersion box (9) and the second dispersion box (10) are clamped into each other, a plurality of through holes (11) are provided on one side of the first dispersion box (9) and the second dispersion box (10), and a first denitration plate (13), a second denitration plate (14) and a third denitration plate (15) are clamped into the denitration bin (1) from left to right in sequence.

2. A generator set tail gas denitration device according to claim 1, characterized in that: Two brackets (4) are fixedly connected to the outer wall of the bottom of the denitration bin (1).

3. The tail gas denitration device of a generator set according to claim 1, characterized in that: The drainage pipe (5) is provided with a regulating valve (6).

4. The tail gas denitration device of a generator set according to claim 1, characterized in that: A dustproof net (8) is clamped inside the exhaust pipe (7).

5. The tail gas denitration device of a generator set according to claim 1, characterized in that: A sealing cover (12) is clamped on one end of the denitration bin (1).

6. The tail gas denitration device of a generator set according to claim 1, characterized in that: The first dispersion box (9) and the second dispersion box (10) are located on one side of the first denitrification plate (13).

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