CN217312688U

CN217312688U - Purifier suitable for boiler fume emission

Info

Publication number: CN217312688U
Application number: CN202220091161.6U
Authority: CN
Inventors: 王玲瑜; 付卫涛
Original assignee: Hebei Lanchuan Technology Co ltd
Current assignee: Hebei Lanchuan Technology Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-08-30
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a purifier suitable for boiler fume emission, including the reaction storehouse that has hollow structure open reaction storehouse lower part has air intake and drain, and it has the air exit to open on reaction storehouse upper portion, and the air intake links to each other with the air-supply line, at the inside a plurality of atomizer that are equipped with in reaction storehouse, and each atomizer passes through the pipeline and links to each other with high pressure water pump, and high pressure water pump's import links to each other with the liquid reserve tank, and liquid in the liquid reserve tank is sprayed to reaction storehouse inside through high pressure water pump pressurization by each atomizer atomizing. The purification device has good purification effect, can be used with the existing boiler in a matching way, and has low installation cost and convenient later maintenance.

Description

Purifier suitable for boiler fume emission

Technical Field

The utility model relates to a boiler combustion gas cleaning technical field especially indicates a purifier suitable for boiler fume emission.

Background

Fuel in combustion process of non-industrial boilerThe nitrogen oxides produced in (1) are mainly NO and NO ₂ These two nitrogen oxides are commonly referred to as nitrogen oxides NOx. NOx can irritate the lungs, making it more difficult for people to resist the respiratory system, such as the cold, and people with respiratory problems, such as asthmatics, can be more susceptible to nitrogen dioxide. In children, nitrogen oxides may cause impaired lung development. The smoke components of the industrial boiler on the market at present are complex and can be discharged into the atmosphere after being treated by a special treatment process and special treatment equipment, and the treatment process is complex, the cost of the treatment equipment is high, and the smoke components cannot be directly applied to the treatment of the smoke of the non-industrial boiler. However, most of the flue gas generated by the non-industrial boilers on the market after the fuel is combusted is directly discharged into the atmosphere, and has a profound influence on the atmosphere. The device for treating the flue gas of the non-industrial boiler is reported in the market at present. The discharge amount of nitrogen oxides can be reduced to a certain extent by modifying the internal structure of the boiler and improving the quality of fuel, but the effect is dare to guarantee, and the discharge amount of the nitrogen oxides is directly influenced by various influencing factors, such as weather change, fuel combustion condition and the like. Even if the smoke emission detection result reaches the standard, the surrounding environment can still detect the existence of a large amount of nitrogen oxides, and a large amount of smoke is continuously emitted to the atmosphere through visual inspection, so that the atmosphere is badly influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a purifier suitable for boiler fume emission, this purifier purifying effect is good, can use with current boiler is supporting, and the installation cost is low, and later maintenance is convenient.

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

the purification device is characterized by comprising a reaction bin with a hollow structure, wherein the lower part of the reaction bin is provided with an air inlet and a sewage outlet, the upper part of the reaction bin is provided with an air outlet, the air inlet is connected with an air inlet pipe, a plurality of atomizing nozzles are arranged in the reaction bin, each atomizing nozzle is connected with a high-pressure water pump through a pipeline, the inlet of the high-pressure water pump is connected with a liquid storage tank, and liquid in the liquid storage tank is pressurized through the high-pressure water pump and atomized by each atomizing nozzle to be sprayed into the reaction bin.

Preferably, the ozone generator is further included, the ozone generator is provided with an ozone outlet, and ozone sprayed out of the ozone outlet can be sprayed into the air inlet pipe.

Preferably, the atomizer is arranged into a plurality of upper and lower layers, and each layer comprises a plurality of atomizers.

Preferably, the atomizing spray head is arranged in the center of the reaction bin and is arranged in an upper-lower multilayer manner.

Preferably, an air deflector is further arranged in the reaction bin.

Preferably, a plurality of air guide channels are arranged on the air guide plate.

Preferably, a demister is further arranged in the reaction bin.

Preferably, the reaction device further comprises a fan, wherein an air outlet of the fan is connected with an air inlet of the reaction bin or an inlet of the fan is connected with an air outlet of the reaction bin.

Preferably, the air inlet pipe collects the flue gas exhausted from the exhaust port of the combustion boiler into the air inlet pipe through the smoke collecting hood, or the air inlet pipe is connected with the exhaust port of the combustion boiler.

Further preferably, a water replenishing port is arranged at the upper part of the liquid storage tank, a water discharging port is arranged at the lower part of the liquid storage tank, and the demister is a wire mesh demister.

In the technical scheme, flue gas discharged from a smoke discharge port of a combustion boiler is accelerated by a fan and then discharged to the lower part of a reaction bin through an air inlet pipe, a purifying agent in a liquid storage tank is pressurized by a high-pressure water pump and then atomized and sprayed into the reaction bin through atomizing nozzles, the surface area of the atomized purifying agent is rapidly increased, the atomized purifying agent can be fully mixed with nitrogen oxides in contact with the atomized purifying agent to generate rapid reaction, particularly nitrogen dioxide, and the atomized purifying agent rapidly reduces the nitrogen dioxide into nontoxic and harmless nitrogen and water, so that the aim of air purification is fulfilled. The mist purifying agent sprayed by each atomizing nozzle has kinetic energy of downward movement, and generates inertial collision and interception action with the upward movement flue gas, so that larger particles are captured by the mist purifying agent, the mist purifying agent carrying particles sinks at the bottom of the reaction bin due to the action of gravity and is discharged through a drain outlet, the flue gas is further purified, and the purified air is discharged through an air outlet; in addition, the fog-shaped purifying agent sprayed by each atomizer acts on the downward reaction force of the upward moving smoke, and the reaction time of the smoke and the fog-shaped purifying agent is further ensured in a multi-layer arrangement mode of the atomizers, so that the smoke purifying effect is ensured. The demister further prevents the purifying agent from overflowing to the outside of the reaction bin, so that the consumption of the purifying agent is increased. The arrangement of the ozone generator enables nitric oxide in the flue gas to react with ozone and be quickly converted into nitrogen dioxide which can react with the purifying agent more easily, and the purifying effect of nitrogen oxide is further improved. The high-efficiency purification of the flue gas can be realized only by regularly adding a purifying agent with proper concentration into the liquid storage tank, the later maintenance operation is simple, the cost is low, and the device can be directly used with the existing boiler in a matching way, so that the installation cost is further reduced and the cost is low.

Tests show that when the combustion boiler is normally used, under the same experimental conditions, the concentration of nitrogen oxides in the air within the range of 5-10 meters around the smoke outlet of the combustion boiler without the device is 1090-1157 micrograms/cubic meter; the concentration of nitrogen oxides in the air within the range of 5-10 meters around the combustion boiler provided with the device is 107-117 micrograms/cubic meter, and the concentration of nitrogen oxides in the air is greatly reduced.

Drawings

FIG. 1 is a schematic view of the purification device for boiler flue gas emission;

FIG. 2 is a schematic view of another embodiment of the purification device for boiler flue gas emission.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the purification device for boiler flue gas emission comprises a reaction chamber 1 having a hollow structure, an air inlet 11 and a sewage outlet 12 are formed at the lower part of the reaction chamber 1, an air outlet 13 is formed at the upper part of the reaction chamber 1, wherein the air inlet 11 is connected with an air inlet pipe 14, and the air inlet pipe 14 and the air inlet 11 are used for conveying flue gas discharged from a combustion boiler flue gas outlet into the reaction chamber 1. A plurality of atomizing spray heads 2 are arranged in the reaction bin 1, each atomizing spray head 2 is connected with a high-pressure water pump 22 through a pipeline 21, and an inlet of the high-pressure water pump 22 is connected with a liquid storage tank 23, so that purifying agents in the liquid storage tank 23 are pressurized through the high-pressure water pump 22 and then are atomized and sprayed into the reaction bin 1 through each atomizing spray head 2. The atomized purifying agent has a sharply increased surface area, can be fully mixed with nitrogen oxides in contact with the atomized purifying agent to generate a rapid reaction, particularly nitrogen dioxide, and the atomized purifying agent rapidly reduces the nitrogen dioxide into nontoxic and harmless nitrogen and water to achieve the aim of air purification. The mist purifying agent sprayed by each atomizing nozzle 2 has kinetic energy of downward movement, and generates inertia collision and interception action with the upward movement flue gas, so that larger particles are captured by the mist purifying agent, the mist purifying agent carrying the particles sinks at the bottom of the reaction chamber 1 due to the action of gravity, and is discharged through the sewage discharge outlet 12, so that the flue gas is further purified, and the purified air is discharged through the air outlet 13. In the embodiment, the atomizer 2 is arranged in a plurality of layers, and each layer comprises a plurality of atomizers; or the atomizer 2 is arranged near the central axis of the reaction chamber 1 and arranged in a plurality of layers, thus the atomized purifying agent sprayed by each atomizer 2 reacts with the downward reaction force of the upward moving flue gas, and the multi-layer arrangement of the atomizers 2 further ensures the reaction time of the flue gas and the atomized purifying agent, and ensures the flue gas purifying effect. The purifying agent is a compound consisting of a plurality of reducing agents, has strong reducibility, can be fully mixed with nitrogen oxides in smoke, can reduce the nitrogen oxides into non-toxic and harmless nitrogen and water, and is harmless to the atmosphere, such as low-temperature urea. Further, still be equipped with defroster 5 in reaction 1 upper portion, defroster 5 is the wire mesh defroster, further avoids the purifying agent to overflow outside reaction 1, causes the purifying agent to consume the volume and increases.

In a preferred embodiment, the reaction chamber 1 is further provided with an air deflector 3, and the air deflector 3 guides the movement track of the flue gas, so that the flue gas is more uniformly diffused in the reaction chamber 1, and the flue gas purification degree is further improved. And a plurality of air guide channels can be further arranged on the air guide plate 3, so that the diffusion degree of the flue gas is more uniform.

In a preferred embodiment, the device further comprises an ozone generator 4, the ozone generator 4 is provided with an ozone outlet 41, and the ozone sprayed from the ozone outlet 41 can be sprayed into the air inlet pipe 14, so that the nitric oxide in the flue gas can react with the ozone and be rapidly converted into nitrogen dioxide which can react with a purifying agent more easily, and the purifying effect of the nitrogen oxide is further improved.

In a preferred embodiment, a water replenishing port 24 is additionally arranged at the upper part of the liquid storage tank 23, a water discharging port 25 is arranged at the lower part of the liquid storage tank 23, and the purifying agent with proper concentration can be periodically added into the liquid storage tank 23 through the water replenishing port 24 to realize high-efficiency purification of the flue gas, so that the later maintenance operation is simple and the cost is low. The device is connected with the smoke outlet of the combustion boiler through the air inlet pipe 14, or the smoke exhausted from the smoke outlet of the combustion boiler is collected into the air inlet pipe 14 through the smoke collecting hood 7, so that the device is directly matched with the existing boiler for use, and the installation cost is further reduced.

In a preferred embodiment, the device further comprises a fan 6, wherein an air outlet of the fan 6 is connected with an air inlet 11 of the reaction bin 1 or an inlet of the fan 6 is connected with an air outlet 13 of the reaction bin 1, so that the efficiency and the treatment capacity of the device for purifying flue gas are further improved.

This embodiment is only to the explanation of the utility model concept and realization, not to limit it, under the utility model concept, the technical scheme who does not change really is still in the protection zone.

Claims

1. The utility model provides a purifier suitable for boiler fume emission, its characterized in that, is including the reaction storehouse that has hollow structure reaction storehouse lower part is opened there are air intake and drain, and it has the air exit to open on reaction storehouse upper portion, and the air intake links to each other with the air-supply line, is equipped with a plurality of atomizer in reaction storehouse inside, and each atomizer passes through the pipeline and links to each other with high pressure water pump, and high pressure water pump's import links to each other with the liquid reserve tank, and liquid in the liquid reserve tank is sprayed inside reaction storehouse through the pressurization of high pressure water pump by each atomizer atomizing.

2. The purification device for boiler flue gas emission according to claim 1, further comprising an ozone generator, wherein the ozone generator is provided with an ozone outlet, and ozone sprayed from the ozone outlet can be sprayed into the air inlet pipe.

3. The purification device for boiler flue gas emission according to claim 1 or 2, wherein the atomizer is arranged in a plurality of layers, each layer comprising a plurality of atomizers.

4. The purification device for boiler flue gas emission according to claim 1 or 2, wherein the atomizer is installed at the center of the reaction chamber and arranged in a plurality of layers.

5. The purification device for boiler flue gas emission according to claim 1 or 2, wherein an air deflector is further arranged in the reaction bin.

6. The purification apparatus for boiler flue gas emissions according to claim 5, wherein a plurality of air guiding channels are provided on said air guiding plate.

7. The purification device for boiler flue gas emission according to claim 1 or 2, wherein a demister is further provided in the reaction chamber.

8. The purification device suitable for boiler flue gas emission according to claim 1 or 2, further comprising a fan, wherein an air outlet of the fan is connected with an air inlet of the reaction bin or an inlet of the fan is connected with an air outlet of the reaction bin.

9. The purification apparatus for boiler flue gas emission according to claim 1 or 2, wherein the air inlet pipe collects flue gas discharged from the exhaust port of the combustion boiler into the air inlet pipe through the fume collecting hood, or the air inlet pipe is connected to the exhaust port of the combustion boiler.

10. The purification apparatus for boiler flue gas emission according to claim 7, wherein a water replenishing opening is provided at an upper portion of the liquid storage tank, a water discharging opening is provided at a lower portion of the liquid storage tank, and the demister is a wire mesh demister.