CN212039825U

CN212039825U - Flue gas fountain washing device

Info

Publication number: CN212039825U
Application number: CN202020359502.4U
Authority: CN
Inventors: 蔡志樑; 夏捍东; 唐桂平
Original assignee: Dongguan Zhi Hui Renewable Resources Power Generation Co ltd
Current assignee: Dongguan Zhi Hui Renewable Resources Power Generation Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-12-01
Anticipated expiration: 2030-03-20

Abstract

The utility model relates to a technical field is handled to the flue gas, concretely relates to flue gas fountain washing device, including the washing pipe, the liquid reserve tank, spray, the flue gas advances a and the flue gas goes out a, the washing pipe is located the upper end of liquid reserve tank, the flue gas advances a slope and sets up the upper end side at the washing pipe, the flue gas goes out a level and sets up the lower extreme side at the washing pipe, the fixed top that sets up at the washing pipe of spray, the spray is including the washing shower head, urgent shower head and water tank, the washing shower head is linked together through the pipeline with the liquid reserve tank, urgent shower head is linked together through the pipeline with the water tank, the height of liquid reserve tank is 1 with the high proportion of washing pipe: 3, the ratio of the caliber of the washing pipe to the caliber of the liquid storage tank is 1: 4. the pressure drop and the unit flow generated by limiting the parameter proportion of the liquid storage tank and the washing pipe can wash the pollutants in the flue gas to the maximum extent, and when the temperature in the device is too high, the device is prevented from being damaged by high temperature.

Description

Flue gas fountain washing device

Technical Field

The utility model relates to a technical field is handled to the flue gas, concretely relates to flue gas fountain washing device.

Background

Flue gas can be generated in the process of industrial waste incineration power generation, and random emission of the flue gas often causes a series of environmental pollution problems, and the flue gas is often required to be washed. The flue gas washing is to wash flue gas generated in industrial production by using a certain washing solution, the flue gas is contacted with the washing solution (such as NaOH solution), and pollutants in the flue gas are left in the washing solution to remove harmful substances such as particulate matters, sulfur dioxide and nitrogen oxides in the flue gas, so that the purposes of controlling the flue gas pollutants and preventing the environment from being polluted are achieved.

However, the existing spray type washing device has small gas-liquid contact area, so that the washing effect is poor, and a plurality of sets of washing towers are required to be repeatedly designed to meet the washing effect, thereby not only increasing the investment of equipment and sites, but also prolonging the working time and reducing the production efficiency.

Therefore, there is a need in the industry for a solution to the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flue gas fountain washing device to prior art's not enough. The purpose of the utility model can be realized by the technical scheme as follows.

The utility model provides a flue gas fountain washing device, advances a and the flue gas goes out a including washing pipe, liquid reserve tank, spraying, flue gas, washing pipe locates the upper end of liquid reserve tank, the flue gas advances a slope setting and is in the upper end side of washing pipe, the flue gas goes out a level setting and is in the lower extreme side of washing pipe, spraying is fixed to be set up the top of washing pipe, spraying is including washing shower, urgent shower and water tank, the washing shower with the liquid reserve tank is linked together through the pipeline, urgent shower with the water tank is linked together through the pipeline, the liquid reserve tank highly with the high proportion of washing pipe is 1: 3, the ratio of the caliber of the washing pipe to the caliber of the liquid storage tank is 1: 4.

preferably, the spray part further comprises a positioning cover, the positioning cover and the top end of the washing pipe are mutually covered, the washing spray head is vertically inserted into the middle of the positioning cover, and the emergency spray head is obliquely inserted into the positioning cover and is positioned beside the washing spray head.

Preferably, a first suction pump is arranged on a pipeline for communicating the washing spray header with the liquid storage tank, and a second suction pump is arranged on a pipeline for communicating the emergency spray header with the water tank.

Preferably, a water level detector is arranged on the liquid storage tank

Preferably, the side of the liquid storage tank is provided with an observation and maintenance window.

Preferably, the top of liquid reserve tank is equipped with the steady lid, the washing pipe passes the steady lid, the lower edge of steady lid with the last reason integrated into one piece of liquid reserve tank, the protruding a plurality of stopper that is equipped with of top surface of steady lid, the stopper with the outer wall of washing pipe is even as an organic whole.

Preferably, a siphon is arranged on the liquid storage tank, and a valve is arranged on the siphon.

Preferably, the wash pipe is provided with a temperature detector.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flue gas fountain washing device, with washing pipe, liquid reserve tank and spray spare parts collection as an organic whole, liquid reserve tank washing liquid is pumped to spray spare and is gone up to washing pipe injection, and washing liquid washes and falls in the liquid reserve tank internal recycle along with the effect of gravity through flowing flue gas, is favorable to resources are saved; and the pressure drop and the unit flow that produce through the parameter proportion to liquid reserve tank and washing pipe are injectd and pollutant washing in the flue gas can maximize, when the inside high temperature of device moreover, can cool down the device through urgent shower head, avoid the device to receive high temperature and damage.

Drawings

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

Fig. 2 is a schematic structural view of the washing pipe, the liquid storage tank and the spraying member in the embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the following specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

To among the prior art washing device gas-liquid area of contact undersize, lead to the washing effect variation, need several sets of scrubbing towers of repeated design to satisfy the washing effect scheduling problem, the utility model provides a flue gas fountain washing device can maximize the ground with the flue gas washing clean through the parameter restriction to washing device, can also circulate simultaneously and spray and carry out further purification.

A flue gas spray type washing device, which is shown in figure 1 and figure 2 and comprises a washing pipe 2, a liquid storage tank 1, a spraying piece 3, a flue gas inlet piece 4 and a flue gas outlet piece 5, the washing pipe 2 is arranged at the upper end of the liquid storage tank 1, the smoke inlet piece 4 is obliquely arranged on the side surface of the upper end of the washing pipe 2, the smoke outlet piece 5 is horizontally arranged on the side surface of the lower end of the washing pipe 2, the spraying piece 3 is fixedly arranged on the top end of the washing pipe 2, the spraying part 3 comprises a washing spraying head 31, an emergency spraying head 32 and a water tank 33, the washing spraying head 31 is communicated with the liquid storage tank 1 through a pipeline, washing liquid of the liquid storage tank 1 is extracted to the washing spraying head 31 to be sprayed, the sprayed washing liquid washes flue gas and then falls back into the liquid storage tank 1 to be recycled, resource saving is facilitated, and a plurality of washing devices are not required to be designed to wash the flue gas. The emergency spray header 32 is communicated with the water tank 33 through a pipeline, and when the temperature in the washing device is too high, the emergency spray header 32 can spray water to the inner wall of the device to cool, so that the device is prevented from being damaged due to high temperature. In addition, if need change the flue gas washing liquid of other different grade types when, also can be earlier through urgent shower head 32 water spray to the inside clean other flue gas washing liquid of adding of device, avoid remaining washing liquid and the washing liquid after changing to take place chemical reaction interference. The height ratio of the liquid storage tank 1 to the washing pipe 2 is 1: 3, the ratio of the caliber of the washing pipe 2 to the caliber of the liquid storage tank 1 is 1: 4, specifically, whether the smoke can be washed clean is related to whether the smoke is in sufficient contact with the washing liquid. Through this height ratio, the structure can show that wash pipe 2 is rectangular shape in figure 2, and as preferred, wash pipe's height is 6500mm, and when the washing liquid down falls from the top, can have enough contact with the washing liquid on vertical face, and the pressure drop in wash pipe 2 this moment is about 5mbar, under this condition, can avoid the washing liquid not enough just fall back to the liquid reserve tank 1 too soon with the flue gas contact. Preferably, the aperture of the liquid storage tank is 1900mm, and the flow rate in the washing pipe 2 is about 20 m/h according to the aperture ratio, so that the use of the washing liquid is limited on the premise of ensuring that the washing liquid in the washing pipe 2 is sufficiently washed by the flue gas, and the purpose of saving resources is achieved.

According to the flue gas spraying type washing device provided by the embodiment, the washing pipe 2, the liquid storage tank 1, the spraying piece 3 and other components are integrated, washing liquid in the liquid storage tank 1 is pumped to the spraying piece 3 and is sprayed to the washing pipe, the washing liquid washes through flowing flue gas under the action of gravity and falls back into the liquid storage tank 1 for recycling, and resources are saved; and through the pressure drop and the unit flow that restrict the parameter proportion of liquid reserve tank 1 and washing pipe 2 and produce can maximize the pollutant washing clean with in the flue gas, when the inside high temperature of device moreover, can cool down the device through urgent shower head 32, avoid the device to receive high temperature and damage.

The embodiment provides a flue gas fountain washing device, as shown in fig. 1 and 2, it still includes location lid 34 to spray piece 3, location lid 34 with wash pipe 2 top is covered each other, and convenient to detach maintains. The washing spray header 31 is vertically inserted in the middle of the positioning cover 34, which is beneficial to spraying washing liquid to contact with the flue gas. The emergency spray header 32 is obliquely inserted into the positioning cover 34 and is positioned beside the washing spray header 31, and the inner wall of the device in the spraying direction is favorable for cooling the inside of the device, so that the device is prevented from being damaged by high temperature.

In the embodiment of the spray-type flue gas washing device, as shown in fig. 1, the first suction pump 6 is arranged on the pipeline communicating the washing spray header 31 and the liquid storage tank 1, so that the washing spray header 31 can be conveniently and accurately sucked with the washing liquid. The pipeline of the emergency spray header 32 communicated with the water tank 33 is provided with the second suction pump 7, which is beneficial to accurately sucking water to the emergency spray header 32.

The embodiment provides a flue gas fountain washing device, as shown in fig. 2, be equipped with water level detector 11 on the liquid reserve tank 1, the feedback through water level detector 11 is convenient for the operating personnel to know the water level condition of washing liquid in the liquid reserve tank 1.

The embodiment provides a flue gas fountain washing device, as shown in fig. 2, the side of liquid reserve tank 1 is equipped with observation maintenance window 12, and the operating personnel can observe the condition of washing liquid in the liquid reserve tank 1 through observation maintenance window 12, and the operating personnel of being convenient for judges whether need the washing liquid of renewal, and when the component takes place to damage in the liquid reserve tank 1, can open observation maintenance window 12 and maintain in addition.

The embodiment provides a flue gas fountain washing device, as shown in fig. 2, the top of liquid reserve tank 1 is equipped with steady lid 13, wash pipe 2 passes steady lid 13, the lower edge of steady lid 13 with the last reason integrated into one piece of liquid reserve tank 1, the protruding a plurality of stopper 14 that is equipped with of top surface of steady lid 13, stopper 14 with wash pipe 2's outer wall is even as an organic whole.

According to the flue gas spraying type washing device provided in the embodiment, as shown in fig. 2, a siphon 15 is arranged on the liquid storage tank 1, a valve 16 is arranged on the siphon 15, and the washing liquid in the liquid storage tank 1 can be drained when the washing liquid is replaced by utilizing the working principle of the siphon 15.

The embodiment provides a flue gas fountain washing device, as shown in fig. 2, wash pipe 2 is equipped with thermodetector 21, the inside temperature of monitoring device of being convenient for, when the high temperature, can in time spray the cooling through urgent shower head 32.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims

1. The utility model provides a flue gas fountain washing device, its characterized in that, advances a and the flue gas goes out a including washing pipe, liquid reserve tank, spraying, flue gas, washing pipe locates the upper end of liquid reserve tank, the flue gas advances a slope and sets up washing pipe's upper end side, the flue gas goes out a level and sets up washing pipe's lower extreme side, spraying is fixed to be set up washing pipe's top, spraying includes washing shower head, emergency spray header and water tank, the washing shower head with the liquid reserve tank is linked together through the pipeline, emergency spray header with the water tank is linked together through the pipeline, the liquid reserve tank highly with washing pipe's high proportion is 1: 3, the ratio of the caliber of the washing pipe to the caliber of the liquid storage tank is 1: 4.

2. the flue gas spray type washing device of claim 1, wherein the spray piece further comprises a positioning cover, the positioning cover and the top end of the washing pipe are mutually covered, the washing spray head is vertically inserted into the middle of the positioning cover, and the emergency spray head is obliquely inserted into the positioning cover and is positioned beside the washing spray head.

3. The flue gas spray type washing device of claim 1, wherein a first suction pump is arranged on a pipeline for communicating the washing spray header with the liquid storage tank, and a second suction pump is arranged on a pipeline for communicating the emergency spray header with the water storage tank.

4. The flue gas spray type washing device of claim 1, wherein a water level detector is arranged on the liquid storage tank, and an observation and maintenance window is arranged on the side surface of the liquid storage tank.

5. The flue gas fountain washing device of claim 1, wherein a stabilizing cover is arranged at the top end of the liquid storage tank, the washing pipe passes through the stabilizing cover, the lower edge of the stabilizing cover and the upper edge of the liquid storage tank are integrally formed, a plurality of limiting blocks are convexly arranged on the top surface of the stabilizing cover, and the limiting blocks and the outer wall of the washing pipe are connected into a whole.

6. The flue gas spray type washing device of claim 1, wherein a siphon is arranged on the liquid storage tank, and a valve is arranged on the siphon.

7. The flue gas spray type washing device of claim 1, wherein the washing pipe is provided with a temperature detector.