CN217341894U

CN217341894U - High-temperature-resistant corrosion-resistant adjustable spray gun for flue gas purification

Info

Publication number: CN217341894U
Application number: CN202220637383.3U
Authority: CN
Inventors: 范瑞峰; 姚玉伦
Original assignee: Beijing Norred Environmental Technology Co ltd
Current assignee: Beijing Norred Environmental Technology Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-09-02
Anticipated expiration: 2032-03-23

Abstract

The utility model relates to the technical field of flue gas purification, in particular to a high temperature resistant, corrosion resistant and adjustable spray gun for flue gas purification, which comprises a spray gun body, wherein the front end of the spray gun body is provided with an output end which can stretch along the length direction of the spray gun body; a jet power channel is arranged in the spray gun body, an atomization cavity is arranged between the jet power channel and the output end, and a reducing agent conveying channel communicated to the atomization cavity is nested in the jet power channel; the spray gun body is also internally provided with a cooling channel, and the spray gun body provided by the utility model can convey the reducing agent to the atomizing cavity and then sufficiently atomize the reducing agent and the compressed air to form a gas-liquid mixture; and the gas-liquid mixture can be sprayed out from the output end; in the using process, parameters such as the using length, the spraying angle and the like are adjusted according to needs, and the coolant can take heat out of the spray gun body so as to maintain a good working state; the method is suitable for the application in the fields of various boiler flue gas purification, selective non-catalytic reduction denitration and flue gas desulfurization.

Description

High-temperature-resistant corrosion-resistant adjustable spray gun for flue gas purification

Technical Field

The utility model relates to a flue gas purification technical field, concretely relates to be used for flue gas purification's high temperature resistant anticorrosive adjustable spray gun of nai.

Background

The flue gas discharged from petrochemical, thermoelectric, steel, cement, garbage incineration, light industry and other industries usually contains toxic and harmful substances such as dust, oxysulfide, nitric oxide and the like. In order to control the atmospheric environment, the national and related environmental protection departments have strict requirements on the emission of flue gas; in the prior art, an atomizing spray gun is generally used for spraying reducing agent to treat sulfur, nitre, dust and the like in a flue of a power plant. However, the temperature in the flue is very high, so that the traditional atomizing spray gun is used in the flue, the atomizing spray gun is in a high-temperature environment for a long time, the temperature of the rod body is too high, the problem is easy to occur, the service life of the rod body is greatly influenced, the liquid sprayed in the atomizing spray gun is influenced due to the high temperature of the rod body, and the performance of the whole process is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a high temperature resistant, corrosion resistant and adjustable spray gun for flue gas purification, which can not only improve the reaction efficiency of a reducing agent; and reducing the amount of reducing agent used.

The utility model adopts the technical proposal that: a high-temperature-resistant corrosion-resistant adjustable spray gun for flue gas purification comprises a spray gun body, wherein the front end of the spray gun body is provided with an output end which can stretch along the length direction of the spray gun body; a jet power channel is arranged in the spray gun body, an atomization cavity is arranged between the jet power channel and the output end, and a reducing agent conveying channel communicated to the atomization cavity is nested in the jet power channel; still be equipped with along the cooling channel who arranges to spray gun body output one side in the spray gun body, the spray gun body is equipped with the cooling entry of being connected with the cooling channel rear end, the inside cooling cavity who forms with the cooling channel intercommunication of spray gun body to the cooling cavity is connected with the cooling outlet.

In the technical scheme; the spraying power channel and the reducing agent conveying channel of the spray gun body can be respectively connected with an air power source and reducing agent supply equipment, and the reducing agent is conveyed to the atomizing cavity and then is sufficiently atomized with compressed air to form a gas-liquid mixture; the gas-liquid mixture can be sprayed out from the output end; the cooling inlet and the cooling outlet can be connected with cooling liquid conveying equipment; the coolant is delivered to the interior of the spray gun body and then is output from the cooling outlet, so that the heat is taken out of the spray gun body, the temperature of the spray gun is rapidly reduced, and a good working state is maintained. Because the output end of the spray gun body is arranged in a telescopic manner, when the spray gun is used, the length of the output end of the spray gun can be adjusted at any time according to the actual conditions of different boilers, so that the penetration distance, the spraying angle and the like of the spray gun can be adjusted, the spray gun can always spray in the optimal spraying interval, and the reaction efficiency is improved.

Further, a protective armor layer is arranged on the outer surface of the spray gun body, and the thickness of the protective armor layer is not less than 2 mm.

Further, the protective armor layer is arranged on the outer surface of the spray gun body in a fusion bonding mode.

Furthermore, the end face and the peripheral surface of the output end are provided with a plurality of output holes communicated with the atomizing cavity.

Furthermore, the output hole of the spray gun body is provided with a detachable nozzle.

Furthermore, the rear end of the spray gun body is provided with a cooling joint connected with a cooling inlet and a cooling outlet.

Further, the reducing agent conveying channel is connected with a material joint positioned at the rear end of the spray gun body.

Further, the spraying power channel is connected with a power source connector located at the rear end of the spraying gun body.

The beneficial effects of the utility model are that: the spray gun body provided by the utility model can deliver the reducing agent to the atomizing cavity and then fully atomize the reducing agent and the compressed air to form a gas-liquid mixture; the gas-liquid mixture can be sprayed out from the output end; during the spraying process, the coolant can carry heat out of the spray gun body, so that the temperature of the spray gun is rapidly reduced, and a good working state is maintained. Because the output end of the spray gun body is arranged in a telescopic manner, when the spray gun is used, the length of the output end of the spray gun can be adjusted at any time according to the actual conditions of different boilers, so that the penetration distance, the spraying angle range and the like of the spray gun can be adjusted, the spray gun can always spray in the optimal spraying interval, and the reaction efficiency is improved; the utility model is suitable for the application in the fields of various boiler flue gas purification, selective non-catalytic reduction denitration and flue gas desulfurization; has higher practical value and popularization value.

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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a perspective view of the high temperature resistant, corrosion resistant and adjustable spray gun for flue gas purification provided by the embodiment of the utility model.

Fig. 2 is a sectional view of the high temperature resistant and corrosion resistant adjustable spray gun for flue gas purification provided by the embodiment of the utility model.

Fig. 3 is a sectional view of the output end of the spray gun body of the high temperature resistant and corrosion resistant adjustable spray gun for flue gas purification provided by the embodiment of the utility model.

Reference numerals: the spray gun comprises a spray gun body 100, an output end 110, an output hole 111, a spray power channel 120, a reducing agent conveying channel 130, a cooling channel 140, a protective armor layer 200, a spray nozzle 300, a cooling joint 400, a material joint 500 and a power source joint 600.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in figure 1 and figure 2, the embodiment of the utility model provides a high temperature resistant anticorrosive adjustable spray gun for gas cleaning, this spray gun can be applicable to various boiler gas cleaning field, selectivity non-catalytic reduction method denitration field, flue gas desulfurization field, can realize accurate, the fixed point sprays the reductant in furnace high temperature region. The spray gun comprises a spray gun body 100, wherein the front end of the spray gun body 100 is provided with an output end 110 which can stretch along the length direction of the spray gun body; a jet power channel 120 is arranged in the spray gun body 100, an atomization cavity is arranged between the jet power channel 120 and the output end 110, and a reducing agent conveying channel 130 communicated to the atomization cavity is nested in the jet power channel 120; the spray gun body 100 is further internally provided with a cooling channel 140 arranged along one side of the output end 110 of the spray gun body 100, the spray gun body 100 is provided with a cooling inlet connected with the rear end of the cooling channel 140, a cooling cavity communicated with the cooling channel 140 is formed inside the spray gun body 100, and the cooling cavity is connected with a cooling outlet.

Through the above arrangement; the injection power channel 120 and the reducing agent delivery channel 130 of the spray gun body 100 can be respectively connected with an air power source and reducing agent supply equipment, and the reducing agent delivered through the reducing agent delivery channel 130 can be fully atomized with compressed air after being delivered to an atomization cavity to form a gas-liquid mixture; the gas-liquid mixture is ejected from the output end 110 by the compressed air.

As shown in fig. 1 and 2, because the temperature in the hearth is high, the cooling inlet and the cooling outlet can be connected with cooling liquid conveying equipment in the spraying process of the spray gun; the coolant is conveyed into the spray gun body 100 and then is output from the cooling outlet, so that the heat is taken out of the spray gun body 100, the temperature of the spray gun is rapidly reduced, and a good use state is maintained; the cooling can be carried out by air cooling or water cooling. Because the scalable arrangement of spray gun body output, consequently when using, can adjust spray gun output length at any time according to the actual conditions of different boilers to adjust its deep distance, in practical application, the flexible scope of spray gun 3 to 4000mm can effectively go deep into boiler furnace high temperature region.

As shown in fig. 1 and 2, in order to further improve the high temperature resistance of the spray gun body 100, in this embodiment, a protective armor layer 200 is disposed on the outer surface of the spray gun body 100, and the thickness of the protective armor layer 200 is not less than 2 mm. The protective armor layer 200 is arranged on the outer surface of the spray gun body 100 in a fusion bonding mode; the protective armor layer 200 has the characteristics of corrosion resistance, high temperature resistance and good heat insulation, and can effectively protect the spray gun from being damaged by high temperature and corrosion.

As shown in fig. 1 and 3, in order to improve the spraying effect, the present embodiment is provided with a plurality of output holes 111 communicating with the atomizing chamber on the end surface and the outer circumferential surface of the output end 110. And the output hole 111 of the spray gun body 100 is provided with a detachable nozzle 300. Because the nozzle 300 is detachable, the nozzle can be installed at different positions of the spray gun body 100 in practical application, and different spray angles can be adjusted after the nozzle is installed; the structure of the nozzle 300 with different specifications can be conveniently changed according to the requirements, technicians can replace the nozzle 300 with different forms according to different characteristics of the sprayed objects, and the nozzle 300 is arranged on the output hole 111 on the end surface or the outer peripheral surface of the output end according to the requirements; fan-shaped atomizing nozzle or toper atomizing nozzle can be installed, and when adopting toper atomizing nozzle, its nozzle is directional for the oblique cross-section to can cover bigger region in burning furnace.

As described above, the lance body 100 needs to be connected to the reducing agent device, the air power source device, and the coolant delivery device, and the cooling connector 400 connected to the cooling inlet and the cooling outlet is provided at the rear end of the lance body in this embodiment. The reducing agent delivery passage 130 is connected to a material connection 500 at the rear end of the lance body 100. The injection power path 120 is connected to a power source connector 600 at the rear end of the torch body 100. In this way, the coolant delivery apparatus may be connected to the cooling inlet and the cooling outlet to circulate the coolant; the material connector 500 can be connected with a reducing agent supply device, and the power source connector 600 can be connected with a compressed air source device. The joint can be a threaded joint, and can also be provided with a quick-connection clamp joint, so that the butt joint of each power source and materials is facilitated.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A high temperature resistant anticorrosion adjustable spray gun for gas cleaning, characterized by; the spray gun comprises a spray gun body (100), wherein the front end of the spray gun body (100) is provided with an output end (110) which can stretch along the length direction of the spray gun body;

a jet power channel (120) is arranged in the spray gun body (100), an atomization cavity is arranged between the jet power channel (120) and the output end (110), and a reducing agent conveying channel (130) communicated to the atomization cavity is nested in the jet power channel (120);

still be equipped with along cooling channel (140) of arranging to spray gun body (100) output end (110) one side in spray gun body (100), spray gun body (100) are equipped with the cooling entry of being connected with cooling channel (140) rear end, the inside cooling cavity that forms with cooling channel (140) intercommunication of spray gun body (100) to the cooling cavity is connected with the cooling export.

2. The high temperature resistant, corrosion resistant and adjustable spray gun for flue gas purification of claim 1, wherein; the outer surface of the spray gun body (100) is provided with a protective armor layer (200), and the thickness of the protective armor layer (200) is not less than 2 mm.

3. The adjustable spray gun for flue gas purification of claim 2, which is temperature and corrosion resistant; the protective armor layer (200) is arranged on the outer surface of the spray gun body (100) in a fusion bonding mode.

4. The adjustable spray gun for flue gas purification of claim 1, which is temperature and corrosion resistant; the end face and the peripheral surface of the output end (110) are provided with a plurality of output holes (111) communicated with the atomization cavity.

5. The adjustable spray gun for flue gas purification of claim 4, which is temperature and corrosion resistant; the output hole (111) of the spray gun body (100) is provided with a detachable nozzle (300).

6. The adjustable spray gun for flue gas purification of claim 1, which is temperature and corrosion resistant; and the rear end of the spray gun body (100) is provided with a cooling joint (400) connected with a cooling inlet and a cooling outlet.

7. The high temperature resistant, corrosion resistant and adjustable spray gun for flue gas purification of claim 1, wherein; the reducing agent conveying channel (130) is connected with a material joint (500) positioned at the rear end of the spray gun body (100).

8. The adjustable spray gun for flue gas purification of claim 1, which is temperature and corrosion resistant; the jet power channel (120) is connected with a power source joint (600) positioned at the rear end of the spray gun body (100).