CN212041065U - Nozzle for flue gas treatment - Google Patents

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a nozzle for flue gas treatment, which comprises a spray head, a conveying pipe, a water pipe, a compressed air pipe and a protective air pipe, wherein the spray head is fixed at one end of the conveying pipe, the caliber of the conveying pipe sequentially comprises a first conveying pipe, a second conveying pipe and a third conveying pipe from large to small, the second conveying pipe is arranged inside the first conveying pipe, the inner wall of the first conveying pipe and the outer wall of the second conveying pipe form a first channel, the third conveying pipe is arranged inside the second conveying pipe, the inner wall of the second conveying pipe and the outer wall of the third conveying pipe form a second channel, the third conveying pipe is provided with a third channel, the protective air pipe is fixed on the first conveying pipe and communicated with the first channel, the compressed air pipe is fixed on the second conveying pipe and communicated with the second channel, the water pipe is fixed on the, thereby not only leading water to be fully contacted with the flue gas, but also protecting the nozzle and avoiding the damage caused by the influence of the hot gas flow of the flue gas.

Description

Nozzle for flue gas treatment

Technical Field

The utility model relates to a technical field is handled to the flue gas, concretely relates to a nozzle for flue gas is handled.

Background

The flue gas is generated in the process of industrial waste incineration power generation, the random emission of the flue gas often causes a series of environmental pollution problems, and the flue gas is often required to be treated including desulfurization treatment. In some desulfurization treatment modes such as dense-phase semi-dry method, circulating fluidized bed semi-dry method, etc., water is required to create good desulfurization treatment conditions. In the prior art, water is sprayed through a nozzle in order to make the flue gas contact with the water sufficiently. However, the existing nozzle for flue gas treatment has unsatisfactory spraying effect, sprayed liquid drops are not uniform, flue gas desulfurization treatment is insufficient, the nozzle is easily affected by flue gas hot air flow, the problems of nozzle caking, blockage, hot corrosion and the like occur, and the quality of flue gas desulfurization treatment is greatly affected.

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

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nozzle for flue gas is handled to prior art's not enough. The purpose of the utility model can be realized by the technical scheme as follows.

A nozzle for treating flue gas, which comprises an injector head, a delivery pipe, a water pipe, a compressed air pipe and a protective air pipe, the injector head is fixed at one end of the delivery pipe, the caliber of the delivery pipe sequentially comprises a first delivery pipe, a second delivery pipe and a third delivery pipe from large to small, the second delivery pipe is arranged in the first delivery pipe, and the inner wall of the first delivery pipe and the outer wall of the second delivery pipe form a first channel, the third delivery pipe is arranged inside the second delivery pipe, and the inner wall of the second delivery pipe and the outer wall of the third delivery pipe form a second channel, the third delivery pipe is provided with a third channel, the protection air pipe is fixed on the first conveying pipe and communicated with the first channel, the compressed air pipe is fixed on the second conveying pipe and communicated with the second channel, and the water pipe is fixed on the third conveying pipe and communicated with the third channel.

Preferably, the injection head is sleeved with an air isolation cover.

Preferably, the first delivery pipe, the second delivery pipe and the third delivery pipe have a bore size ratio of 1: 2: 4.

preferably, sealing parts are arranged at the joint of the protection air pipe and the first conveying pipe, the joint of the compressed air pipe and the second conveying pipe and the joint of the water pipe and the third conveying pipe.

Preferably, the protection air pipe, the compressed air pipe, and the water pipe face in the same direction.

Preferably, the second conveying pipeline extends to the outside of the first conveying pipeline, the third conveying pipeline extends to the outside of the second conveying pipeline, the water pipe is bent and connected with the side end of the third conveying pipeline, and the compressed air pipe is connected with the side surface of the second conveying pipeline.

Preferably, the first conveying pipe is sleeved with a mounting block.

Preferably, pressure gauges are arranged on the water pipe, the compressed air pipe and the protection air pipe. Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a nozzle for flue gas is handled, with the water pipe, compressed air pipe and protection trachea access to the water source respectively, compressed air and protective gas, convey pneumatic atomization in injector head department through the conveyer pipe and be even droplet, make the contact of water and flue gas fully even, create good condition that is favorable to desulfurization treatment, protective gas in the protective gas pipe makes whole nozzle not direct contact hot gas flow moreover, avoid causing nozzle caking to block up and hot corrosion scheduling problem, the quality of desulfurization treatment has been improved.

Drawings

Fig. 1 is a schematic view of an angle of a nozzle according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of another angle of the nozzle according to 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.

The liquid drop that is used for the nozzle of flue gas treatment to erupt is not even among the prior art, can lead to flue gas desulfurization to handle and be abundant inadequately, and the nozzle receives flue gas hot gas flow easily moreover and must influence and appear the nozzle caking and block up and hot corrosion scheduling problem, the utility model provides a nozzle for flue gas treatment can make water and flue gas fully contact, but also can protect the nozzle, avoids receiving the influence of flue gas hot gas flow and damages.

A nozzle for flue gas treatment is shown in figures 1 and 2 and comprises an injection head 10, a conveying pipe, a water pipe 6, a compressed air pipe 5 and a protective air pipe 4, wherein the water pipe 6, the compressed air pipe 5 and the protective air pipe 4 respectively convey a water source, compressed air and protective air to the injection head 10 through the conveying pipe to form uniform small droplets. The spray head 10 is fixed in conveyer pipe one end, the conveyer pipe bore includes first conveyer pipe 1, second conveyer pipe 2 and third conveyer pipe 3 from big to small in proper order, second conveyer pipe 2 is located the inside of first conveyer pipe 1, just the inner wall of first conveyer pipe 1 with the outer wall of second conveyer pipe 2 forms first passageway 7, third conveyer pipe 3 is located the inside of second conveyer pipe 2, just the inner wall of second conveyer pipe 2 with the outer wall of third conveyer pipe 3 forms second passageway 8, third conveyer pipe 3 is equipped with third passageway 9, protection trachea 4 is fixed on first conveyer pipe 1 and with first passageway 7 intercommunication, also the central point of first conveyer pipe 1, second conveyer pipe 2 and third conveyer pipe 3 is on same straight line, forms the even distribution form, and first passageway 7, first passageway 7, The second channel 8 and the third channel 9 are not communicated with each other, so that mutual interference is avoided. The compressed air pipe 5 is fixed on the second conveying pipe 2 and communicated with the second channel 8, and the water pipe 6 is fixed on the third conveying pipe 3 and communicated with the third channel 9. Through the structural design, uniform small liquid drops can be sprayed out to be fully contacted with the flue gas, and meanwhile, the influence of thermal corrosion and the like caused by direct contact of the nozzle and the flue gas hot gas is also avoided.

The embodiment provides a nozzle for flue gas treatment, during the use earlier with water pipe 6, compressed air pipe 5 and protection trachea 4 access water source, compressed air and protection gas respectively, the water source, compressed air and protection gas are carried to injector head 10 department through third conveyer pipe 3, second conveyer pipe 2 and first conveyer pipe 1 respectively, the pneumatic atomizing of water of compressed air becomes even droplet blowout this moment, make the contact of water and flue gas fully even, create good condition that is favorable to desulfurization treatment, and protection gas in the protection trachea 4 makes whole nozzle not direct contact hot gas flow, avoid causing nozzle caking jam and hot corrosion scheduling problem, the quality of desulfurization treatment has been improved.

In the nozzle for flue gas treatment provided in this embodiment, as shown in fig. 1, the spray head 10 is sleeved with an air isolation cover 11, so as to prevent the compressed air in the second conveying pipe 2 from leaking and causing a decrease in air pressure, and further prevent the nozzle from being incapable of atomizing into uniform small droplets and spraying out.

In the nozzle for flue gas treatment provided in this embodiment, as shown in fig. 2, the aperture size ratio of the first delivery pipe 1, the second delivery pipe 2, and the third delivery pipe 3 is 1: 2: 4, the water flow and the compressed air flow are controlled by controlling the parameter proportion of each conveying pipe, so that the water source can be ensured to be better atomized into uniform small droplets by the compressed air, and the nozzle structure can be protected by filling the protective gas with enough flow.

In the nozzle for flue gas treatment provided in this embodiment, the joints of the protection air pipe 4 and the first conveying pipe 1, the joints of the compressed air pipe 5 and the second conveying pipe 2, and the joints of the water pipe 6 and the third conveying pipe 3 are all provided with sealing elements (not shown in the figure), so as to avoid mutual interference caused by leakage of the conveying pipes.

In the embodiment of the nozzle for flue gas treatment, as shown in fig. 1 and 2, the protection air pipe 4, the compressed air pipe 5 and the water pipe 6 face in the same direction, so that each pipeline can be conveniently connected to a corresponding fluid, and a user can conveniently control and manage the nozzle.

The nozzle for flue gas treatment that provides in this embodiment, as shown in fig. 1, second conveyer pipe 2 extends to outside first conveyer pipe 1, third conveyer pipe 3 extends to outside second conveyer pipe 2, water pipe 6 be the form of bending with the side of third conveyer pipe 3 links to each other, compressed air pipe 5 with the side of second conveyer pipe 2 links to each other.

In the nozzle for flue gas treatment provided in this embodiment, as shown in fig. 1 and fig. 2, the first conveying pipe 1 is sleeved with the mounting block 12, so as to be conveniently fixed on the desulfurization generating device for use.

The nozzle for flue gas treatment that provides in this embodiment, water pipe 6 compressed air pipe 5 reaches all be equipped with manometer (not shown in the figure) on the protection trachea 4, the manometer is common instrument on the market, feeds back the fluid pressure of each pipeline to the user in proper order, and convenience of customers carries out regulation and control.

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 (8)

1. A nozzle for flue gas treatment, characterized in that, includes injector head, conveyer pipe, water pipe, compressed air pipe and protection trachea, the injector head is fixed in conveyer pipe one end, the conveyer pipe bore includes first conveyer pipe, second conveyer pipe and third conveyer pipe from big to small in proper order, the second conveyer pipe is located the inside of first conveyer pipe, just the inner wall of first conveyer pipe with the outer wall of second conveyer pipe forms first passageway, the third conveyer pipe is located the inside of second conveyer pipe, just the inner wall of second conveyer pipe with the outer wall of third conveyer pipe forms the second passageway, the third conveyer pipe is equipped with the third passageway, the protection trachea is fixed on the first conveyer pipe and with first passageway intercommunication, compressed air pipe is fixed on the second conveyer pipe and with the second passageway intercommunication, the water pipe is fixed on the third delivery pipe and is communicated with the third channel.

2. The nozzle for flue gas treatment according to claim 1, wherein an air shield is sleeved on the spray head.

3. The nozzle of claim 1, wherein the first, second and third ducts have a bore size ratio of 1: 2: 4.

4. the nozzle of claim 1, wherein the connection of the protection air pipe and the first conveying pipe, the connection of the compressed air pipe and the second conveying pipe and the connection of the water pipe and the third conveying pipe are provided with sealing parts.

5. The nozzle of claim 1, wherein said shielding gas pipe, said compressed air pipe and said water pipe are oriented in the same direction.

6. The nozzle according to claim 1, wherein the second conveying pipe extends to the outside of the first conveying pipe, the third conveying pipe extends to the outside of the second conveying pipe, the water pipe is connected with the side end of the third conveying pipe in a bent shape, and the compressed air pipe is connected with the side surface of the second conveying pipe.

7. The nozzle of claim 1, wherein the first delivery pipe is sleeved with a mounting block.

8. The nozzle of claim 1, wherein pressure gauges are disposed on the water pipe, the compressed air pipe and the protection air pipe.

Images