CN217939734U

CN217939734U - Denitration system of gas-fired thermoelectric boiler

Info

Publication number: CN217939734U
Application number: CN202222039474.XU
Authority: CN
Inventors: 王振杰; 李立
Original assignee: Wuxi West District Gas Thermal Power Co ltd
Current assignee: Wuxi West District Gas Thermal Power Co ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-02
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a gas thermoelectric boiler deNOx systems, including the edulcoration water tank, the edulcoration water tank separates dust and impurity in to the flue gas, avoid dust and impurity to get into in the treatment tower, prevent that the aeration head from blockking up, and need not clean the treatment tower, improve whole saltpeter system work efficiency that pushes away, reduce the maintenance cost, treatment tower right flank lower part is equipped with liquid feeding box and liquid pump, the motor is installed on treatment tower left surface upper portion, the output fixedly connected with sleeve pipe of motor, and the sleeve pipe is located inside the treatment tower, inject set intraduct behind the circulating pipe running through the treatment tower, the sleeve pipe surface is equipped with a plurality of groups shower nozzle, in adding the treatment tower with urea aqueous solution, the aeration head disperses the flue gas into the microbubble and makes the flue gas fully contact with urea aqueous solution, the shower nozzle can spray the flue gas, it has urea aqueous solution piece to handle the flue gas once more thoroughly to absorb, it is more thorough to push away the saltpeter to the flue gas, it is showing to improve whole denitration effect that pushes away saltpeter system.

Description

Denitration system of gas thermoelectric boiler

Technical Field

The utility model relates to a waste gas treatment technical field specifically is a gas thermal power boiler deNOx systems.

Background

The existing flue gas filtering system is difficult to simultaneously meet the requirements of efficient desulfurization, dust removal and denitration, and can cause secondary pollution. Meanwhile, other independent desulfurization, dust removal and denitration in the current market are simply integrated together, so that the defects of high energy consumption, large occupied area and complex equipment operation are overcome. Therefore, the publication number CN211936311U discloses a gas power generation boiler exhaust gas desulfurization and denitration system, which has the problems of inconvenient cleaning, inconvenient cleaning of dust on the surface of a cloth bag, slow exhaust gas flow rate, low denitration rate, high maintenance cost of the whole denitration system, and inconvenient use.

In view of the above, a denitration system for a gas-fired thermoelectric boiler is provided to improve the existing structure and defects, so as to achieve the purpose of having higher practical value.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas thermal power boiler deNOx systems to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a gas-fired thermoelectric boiler denitration system comprises an impurity-removing water tank, wherein an air inlet pipe is arranged on the upper surface of the impurity-removing water tank, the air inlet pipe does not extend into the impurity-removing water tank, water is prevented from flowing into the air inlet pipe, a treatment tower is arranged at the right end of the air inlet pipe, a heater is arranged on the lower portion of the surface of the treatment tower and is inserted into the treatment tower, a liquid adding tank and a liquid pump are arranged on the lower portion of the right side surface of the treatment tower, a liquid adding opening is formed in the upper surface of the liquid adding tank, the liquid pumping end of the liquid pump is communicated with the treatment tower, a circulating pipe is arranged at the liquid outlet end of the liquid pump, a motor is arranged on the upper portion of the left side surface of the treatment tower, a sleeve is fixedly connected to the output end of the motor and is located inside the treatment tower, the circulating pipe penetrates through the treatment tower and is inserted into the sleeve, a sealing bearing is arranged on the inner wall of the sleeve, the circulating pipe is inserted into an inner ring of the sealing bearing, and the sealing bearing has certain sealing capacity and is favorable for improving the pressure in the sleeve;

the sleeve pipe surface is equipped with a plurality of groups of shower nozzles, the treatment column inner wall just is located the shower nozzle top and is equipped with the sponge piece, the intake pipe extends into inside the treatment column, and intake pipe surface mounting has the aeration head, and the aeration head adopts metal material to make, ensures that the aeration head has long enough life.

Further, edulcoration water tank left surface lower part is equipped with the exhaust gas pipe, edulcoration water tank inner wall upper portion is equipped with the filter screen, and edulcoration water tank upper surface is equipped with the filler, conveniently adds water in to the edulcoration water tank, and edulcoration water tank left surface lower part is equipped with the drain valve, conveniently trades water.

Furthermore, the treatment tower is internally provided with a baffle which is positioned above the aeration head to prevent waste gas from flowing upwards, the surface of the baffle is provided with a plurality of groups of air holes, the lower surface of the baffle is provided with a plurality of groups of prickles, and the prickles and the baffle are integrally formed, so that the connection firmness of the prickles and the baffle is improved.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an edulcoration water tank separates dust and impurity in to the flue gas, avoid dust and impurity to get into in the treatment column, prevent that the aeration head from blockking up, and need not clean the treatment column, improve whole deNOx systems work efficiency, reduce the maintenance cost, add urea aqueous solution into in the treatment column, the aeration head disperses the flue gas into the microbubble makes the flue gas fully contact with urea aqueous solution, the awl thorn can prevent that the flue gas from forming great bubble, make urea aqueous solution fully handle the flue gas, the shower nozzle can spray the flue gas, it has urea aqueous solution sponge piece to handle the flue gas once more to absorb, it is more thorough to flue gas denitration, whole deNOx systems's denitration effect is showing.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of a treatment tower of the present invention;

figure 3 is the utility model discloses edulcoration water tank's cross-sectional view.

In the figure: 1. an impurity removal water tank; 2. an exhaust gas pipe; 3. a treatment tower; 4. a motor; 5. an air inlet pipe; 6. a heater; 7. a liquid adding box; 8. a liquid pump; 9. a circulation pipe; 10. a sponge sheet; 11. a sleeve; 12. a spray head; 13. sealing the bearing; 14. a baffle plate; 15. air holes are formed; 16. e, stabbing; 17. an aeration head; 18. and (5) filtering by using a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a denitration system of a gas-fired thermoelectric boiler comprises an impurity removal water tank 1, wherein the impurity removal water tank 1 is used for containing water, a waste gas pipe 2 is arranged on the lower portion of the left side face of the impurity removal water tank 1, a filter screen 18 is arranged on the upper portion of the inner wall of the impurity removal water tank 1, flue gas with impurities enters the impurity removal water tank 1 through the waste gas pipe 2, the filter screen 18 can prevent floating impurities from entering an air inlet pipe 5, an air inlet pipe 5 is arranged on the upper surface of the impurity removal water tank 1, a treatment tower 3 is arranged at the right end of the air inlet pipe 5, the flue gas enters the treatment tower 3 through the air inlet pipe 5, a heater 6 is arranged on the lower portion of the surface of the treatment tower 3, the heater 6 heats urea aqueous solution and flue gas, denitration of the flue gas is facilitated, a liquid adding tank 7 and a liquid pump 8 are arranged on the lower portion of the right side face of the treatment tower 3, the liquid adding tank 7 is used for containing the urea aqueous solution, the liquid pumping end of the liquid pump 8 is communicated with the treatment tower 3, a circulating pipe 9 is arranged on the liquid outlet end of the liquid pump 8, and cyclic utilization of the urea aqueous solution is realized by the liquid pump 8;

the upper part of the left side surface of the treatment tower 3 is provided with a motor 4, the output end of the motor 4 is fixedly connected with a sleeve 11, the sleeve 11 is positioned inside the treatment tower 3, the circulating pipe 9 penetrates through the treatment tower 3 and then is inserted into the sleeve 11, the inner wall of the sleeve 11 is provided with a sealing bearing 13, the circulating pipe 9 is inserted into the inner ring of the sealing bearing 13, the sealing bearing 13 can prevent the leakage of the urea aqueous solution and improve the hydraulic pressure, the circulating pipe 9 supports the sleeve 11 through the sealing bearing 13, so that the sleeve 11 rotates more stably, the surface of the sleeve 11 is provided with a plurality of groups of spray heads 12, the motor 4 is used for controlling the rotation of the spray heads 12, the air inlet pipe 5 extends into the treatment tower 3, the surface of the air inlet pipe 5 is provided with an aeration head 17, and the aeration head 17 divides the flue gas into a plurality of groups of small bubbles;

the inside baffle 14 that is equipped with of treatment tower 3, the 14 surfaces of baffle are provided with a plurality of groups of bleeder vents 15, the 14 lower surfaces of baffle are equipped with a plurality of groups of pricks 16, and baffle 14 makes the flue gas more abundant contact with urea aqueous solution, and the flue gas can normally flow in the implementation of bleeder vent 15, and the bubble that the flue gas survived is pierced by prick 16, is favorable to flue gas and urea aqueous solution fully reaction, treatment tower 3 inner walls just are located shower nozzle 12 top and are equipped with sponge piece 10, and sponge piece 10 can absorb partial urea aqueous solution, and the flue gas flows through sponge piece 10 and can denitrate once more.

Specifically, during the use, pour into in edulcoration water tank 1 with appropriate amount of water, urea aqueous solution pours into in the case 7 that adds liquid, heater 6 heats urea aqueous solution, provide high temperature environment for the denitration, the flue gas of pending gets into edulcoration water tank 1 through exhaust pipe 2, dust and impurity in the flue gas sink in the water, the flue gas is spouted by aeration head 17 behind the intake pipe 5, urea aqueous solution carries out the denitration to the flue gas, liquid pump 8 draws urea aqueous solution and carries it into sleeve 11, motor 4 control sleeve 11 rotates, urea aqueous solution in the sleeve 11 spouts from shower nozzle 12, shower nozzle 12 rotates along with sleeve 11 simultaneously, partial urea aqueous solution spouts on sponge piece 10, sponge piece 10 absorbs urea aqueous solution, a portion urea aqueous solution flows down, with the flue gas that upwards flows, carry out the denitration once more again, still can carry out the denitration when the flue gas passes sponge piece 10, denitration to the flue gas denitration more thoroughly.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a gas thermal power boiler deNOx systems, includes edulcoration water tank (1), its characterized in that: impurity removal water tank (1) upper surface is equipped with intake pipe (5), and intake pipe (5) right-hand member is equipped with treatment column (3), treatment column (3) right flank lower part is equipped with liquid tank (7) and liquid pump (8), and the drawing liquid end and treatment column (3) intercommunication of liquid pump (8), the play liquid end of liquid pump (8) is equipped with circulating pipe (9), motor (4) are installed on treatment column (3) left flank upper portion, the output fixedly connected with sleeve pipe (11) of motor (4), and inside sleeve pipe (11) are located treatment column (3), it is inside that sleeve pipe (11) inject sleeve pipe (11) after treatment column (3) are run through in circulating pipe (9), sleeve pipe (11) surface is equipped with a plurality of shower nozzles (12), intake pipe (5) extend into treatment column (3) inside, and intake pipe (5) surface mounting has aeration head (17).

2. The denitration system of the gas-fired thermoelectric boiler as set forth in claim 1, wherein: impurity removal water tank (1) left surface lower part is equipped with exhaust-gas line (2), impurity removal water tank (1) inner wall upper portion is equipped with filter screen (18).

3. The denitration system of the gas-fired thermoelectric boiler as set forth in claim 1, wherein: the heater (6) is arranged on the lower part of the surface of the treatment tower (3), and the heater (6) is inserted into the treatment tower (3).

4. The denitration system of the gas-fired thermoelectric boiler as set forth in claim 1, wherein: the treatment tower is characterized in that a baffle (14) is arranged inside the treatment tower (3), a plurality of groups of air holes (15) are formed in the surface of the baffle (14), and a plurality of groups of stabs (16) are arranged on the lower surface of the baffle (14).

5. The denitration system of the gas-fired thermoelectric boiler as set forth in claim 1, wherein: the inner wall of the sleeve (11) is provided with a sealing bearing (13), and the circulating pipe (9) is inserted into the inner ring of the sealing bearing (13).

6. The denitration system of the gas-fired thermoelectric boiler as set forth in claim 1, wherein: a sponge piece (10) is arranged on the inner wall of the treating tower (3) and above the spray head (12).