CN211936343U

CN211936343U - Gas-liquid cyclone flue gas desulfurizer

Info

Publication number: CN211936343U
Application number: CN202020454622.2U
Authority: CN
Inventors: 龙斌辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-17
Anticipated expiration: 2030-04-01

Abstract

The utility model discloses a gas-liquid whirl flue gas desulfurizer belongs to desulfurization technical field, including infundibulate separator and circulation absorption mechanism, be provided with annular stock solution chamber on encircleing the outer wall of infundibulate separator, a plurality of atomising heads have been arranged around the inner wall of infundibulate separator, be provided with the cavity cyclone tube in the infundibulate separator, install the whirl blade on the cavity cyclone tube, infundibulate separator upper end is connected with the flue gas admission pipe, install the fan on the flue gas admission pipe, circulation absorption mechanism is including installing the wet return in infundibulate separator bottom, the liquid circulation groove of being connected with the wet return lower extreme, with liquid circulation groove intercommunication high-pressure circulating liquid pump, install the inlet tube on high-pressure. The utility model discloses can make water smoke and flue gas mix back whirl downstream and form the torrent, make flue gas and scavenging solution fully contact, realize the desulfurization of high efficiency and remove dust. Dense filler is not required to be arranged in the funnel-shaped separator, so that the problem of channel blockage caused by attachment of the filler and a desulfurization reactant is avoided.

Description

Gas-liquid cyclone flue gas desulfurizer

Technical Field

The utility model relates to a sweetener technical field especially relates to a gas-liquid whirl flue gas desulfurizer.

Background

The wet flue gas desulfurization adopts liquidWashing flue gas with absorbent such as sodium hydroxide, calcium hydroxide, etc. to remove SO₂The working mode of the wet type desulfurization and dust removal series device used in the prior art is as follows: the dust-containing and sulfur-containing flue gas flow from the boiler firstly enters the flue gas pretreatment chamber through the flue and is in good contact with the purified liquid which is atomized into a certain granularity by the atomizer under the turbulent flow state, coarse particles are removed, and a certain amount of SO is absorbed₂A gas. The pretreated gas and the liquid containing dust and sulfur enter the self-excitation chamber through the self-excitation channel to be boiled in the boiling chamber to form a good foam atomization layer for further enhancing SO absorption₂And collecting fine dust particles. The purified gas enters the separation chamber through the outlet of the boiling chamber, and the gas-liquid separation is carried out by adopting the centrifugal principle. The separated liquid returns to the bottom of the tower through a liquid discharging hole. The purified and separated gas enters the main exhaust pipe through the purified gas outlet and is introduced into the atmosphere by the fan.

Because this wet flue gas desulfurization device need set up intensive filler in order to increase the area of contact between flue gas and desulfurization liquid, consequently there is great flow resistance to the flue gas, needs to adopt the desulfurization dust removal speed that the air blast or pressure air inlet mode improved the flue gas. And the adhesion of the filler and the desulfurization reactant can cause channel blockage, thereby causing larger system resistance and failing to realize the single-alkali desulfurization.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a gas-liquid whirl flue gas desulfurizer realizes high-efficient desulfurization and removes dust, avoids filler and desulfurization reactant to adhere to and causes the passageway to block up to cause great system resistance, can't realize the desulfurated problem of monobasic.

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

the utility model provides a gas-liquid whirl flue gas desulfurizer, includes infundibulate separator and circulation absorption mechanism, encircles be provided with annular stock solution chamber on the outer wall of infundibulate separator, encircle a plurality of atomising heads, every are arranged to the inner wall of infundibulate separator the atomising head all with annular stock solution chamber intercommunication, be provided with the cavity vortex tube in the infundibulate separator, install the whirl blade on the cavity vortex tube, infundibulate separator upper end is connected with the flue gas admission pipe, install the fan on the flue gas admission pipe, circulation absorption mechanism including install the wet return of infundibulate separator bottom, with the liquid circulation groove that the wet return lower extreme is connected, with liquid circulation groove intercommunication high pressure cycle liquid pump, install inlet tube on the high pressure cycle liquid pump, the inlet tube with annular stock solution chamber is connected.

Further, a valve is arranged on the water return pipe, a drain pipe is arranged at the bottom of the liquid circulation tank, and a drain valve is arranged on the drain pipe.

Further, the top of the hollow cyclone tube is connected with a purified gas discharge tube.

Further, a liquid pressure meter and a liquid flow meter are installed on the water inlet pipe.

Further, a differential pressure gauge is arranged between the flue gas inlet pipe and the hollow cyclone pipe and used for measuring the pressure difference of the airflow.

The utility model has the advantages that:

the utility model provides a gas-liquid whirl flue gas desulfurizer, structural design is simple and reasonable, through setting up infundibulate separator, atomising head and set up the whirl blade on cavity cyclone tube, can make water smoke and flue gas mix back whirl downstream and form the torrent, has increased the specific surface area of purifying liquid, makes flue gas and purifying liquid fully contact, realizes that the high efficiency desulfurization removes dust. Dense filler is not required to be arranged in the gas-liquid cyclone flue gas desulfurizer, the flue gas flows almost without resistance, and the problem of channel blockage caused by attachment of the filler and a desulfurization reactant is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

wherein the reference numerals are: 1-liquid circulation tank; 2-a funnel-shaped separator; 3-hollow cyclone tube; 4-swirl vanes; 5, an annular liquid storage cavity; 6-a spray head; 7-purified gas discharge pipe; 8-high pressure circulating liquid pump; 9-a water inlet pipe; 10-flue gas inlet pipe; 11-a fan; 12-a water return pipe; 13-a valve; 14-differential pressure gauge; 15-liquid pressure gauge; 16-a liquid flow meter; 17-a drain pipe; and 18-a water discharge valve.

Detailed Description

To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as the upper and lower … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions of the present invention between the various embodiments can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are combined and contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and the present invention is not within the protection scope of the present invention.

Referring to fig. 1, the embodiment provides a gas-liquid cyclone flue gas desulfurizer, comprising a funnel-shaped separator 2 and a circulation absorption mechanism, wherein an annular liquid storage cavity 5 is arranged on the outer wall surrounding the funnel-shaped separator 2, a plurality of spray heads 6 are arranged on the inner wall surrounding the funnel-shaped separator 2, each spray head 6 is communicated with the annular liquid storage cavity 5, a hollow cyclone tube 3 is arranged in the funnel-shaped separator 2, cyclone blades 4 are arranged on the hollow cyclone tube 3, a flue gas inlet pipe 10 is connected to the upper end of the funnel-shaped separator 2, a fan 11 is arranged on the flue gas inlet pipe 10, the circulation absorption mechanism comprises a water return pipe 12 arranged at the bottom of the funnel-shaped separator 2 and a liquid circulation tank 1 connected with the lower end of the water return pipe 12, and the high-pressure circulating liquid pump 8 is communicated with the liquid circulating groove 1, and the water inlet pipe 9 is arranged on the high-pressure circulating liquid pump 8, and the water inlet pipe 9 is connected with the annular liquid storage cavity 5.

In a preferred embodiment, the return pipe 12 is provided with a valve 13, the bottom of the liquid circulation tank 1 is provided with a drain pipe 17, and the drain pipe 17 is provided with a drain valve 18. And (3) opening the valve 13, enabling liquid accumulated after the funnel-shaped separator 2 purifies the flue gas to flow into the liquid circulation tank 1 through the water return pipe 12 for cyclic utilization until the purification liquid absorbs sulfides (sulfur dioxide and hydrogen sulfide) in the flue gas to be saturated. The drain valve 18 is opened to drain the saturated purified liquid, and a new purified liquid can be pumped into the liquid circulation tank 1 through the drain pipe 17.

As a preferred of this embodiment, the top of cavity cyclone tube 3 is connected with purified gas discharge pipe 7, and the flue gas after the purification passes through cavity cyclone tube 3 and discharges through purified gas discharge pipe 7 again, and the inside hollow tube diameter of cavity cyclone tube 3 is more than the twice of flue gas admission pipe 10 diameter, makes the flue gas after the purification slowly discharge relatively, avoids the flue gas after the purification to take away a large amount of liquid fog drops.

As a preference of this embodiment, a liquid pressure gauge 15 and a liquid flow meter 16 are installed on the feed pipe 9 to monitor the pressure of the feed pipe 9 and the flow rate of the feed pipe 9.

In the embodiment, the fan 11 adopts the German import heightA GHBH001 fan with the frequency of 50Hz, the output power of 0.83kw, the noise of 50-55 db and the maximum flow of 180m³H is used as the reference value. The fan has three adjustable gears and is used for adjusting the flow of the conveyed flue gas.

As a preferred preference of this embodiment, install pressure differential meter 14 between flue gas admission pipe 10 and the cavity cyclone tube 3 for measure the pressure differential between the air current in flue gas admission pipe 10 and the air current in cavity cyclone tube 3, the control pressure differential purpose is that the flue gas after the purification slowly discharges, because pressure differential can reflect the time that the flue gas flows through funnel-shaped separator 2, the pressure differential is big explains that the flue gas velocity of flow is fast, then the flue gas dwell time is shorter in funnel-shaped separator 2, also explains simultaneously that the contact time of flue gas and spray head 6 spun purification liquid droplet is short, purifying effect is relatively poor. Therefore, maintaining a proper pressure difference is beneficial to improving the purification effect of the flue gas.

The working principle of the embodiment is as follows:

when purifying the flue gas, open fan 11, fan 11 passes through flue gas admission pipe 10 input infundibulate separator 2 with the flue gas, the flue gas moves down along 4 whirl of whirl blade this moment, open high-pressure circulating liquid pump 8, carry annular stock solution chamber 5 through inlet tube 9 with the purifying liquid in the liquid circulation groove 1, the purifying liquid in annular stock solution chamber 5 atomizes through atomising head 6 and spouts in infundibulate separator 2, the fog drop is driven spiral decline together by the decurrent flue gas of whirl, thereby make fog drop and flue gas intensive mixing sulfur dioxide and the solid tiny particle in with the flue gas by the purification absorption, the gas after the final purification is through 3 inside and the discharge to reach standard of purified gas discharge pipe discharge of cavity whirl pipe.

Although the embodiments of the present invention have been described with reference to the drawings, the pressure is not a limitation to the protection scope of the present invention, and those skilled in the art should understand that, on the basis of the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without inventive work are still within the protection scope of the present invention.

Claims

1. A gas-liquid cyclone flue gas desulfurizer is characterized by comprising a funnel-shaped separator and a circulating absorption mechanism, wherein an annular liquid storage cavity is arranged on the outer wall surrounding the funnel-shaped separator, a plurality of spray heads are arranged on the inner wall surrounding the funnel-shaped separator, each spray head is communicated with the annular liquid storage cavity, a hollow cyclone tube is arranged in the funnel-shaped separator, a cyclone blade is arranged on the hollow cyclone tube, the upper end of the funnel-shaped separator is connected with a flue gas inlet pipe, a fan is arranged on the flue gas inlet pipe, the circulating absorption mechanism comprises a water return pipe arranged at the bottom of the funnel-shaped separator, a liquid circulating groove connected with the lower end of the water return pipe, a high-pressure circulating liquid pump communicated with the liquid circulating groove, and a water inlet pipe arranged on the high-pressure circulating liquid pump, wherein the water inlet pipe is connected with the annular liquid storage cavity.

2. The gas-liquid cyclone flue gas desulfurizer as claimed in claim 1, wherein a valve is arranged on the water return pipe, a drain pipe is arranged at the bottom of the liquid circulation tank, and a drain valve is arranged on the drain pipe.

3. The gas-liquid cyclone flue gas desulfurizer as claimed in claim 1, wherein a purified gas discharge pipe is connected to the top of the hollow cyclone pipe.

4. The gas-liquid cyclone flue gas desulfurizer according to claim 1, wherein a liquid pressure meter and a liquid flow meter are mounted on the water inlet pipe.

5. The gas-liquid cyclone flue gas desulfurizer according to claim 1, wherein a differential pressure gauge is installed between the flue gas inlet pipe and the hollow cyclone pipe.