Modified spray gun
Technical field
The present invention relates to a kind of spray gun using for desulphurization denitration operation.
Background technology
Desulphurization denitration tower is mainly by gas fume conveying system, absorption tower, and spray system, the slurries circulatory system, slurries recovery system form.
Industrial waste gas will have the waste gas of a large amount of sulfur dioxide, carbon dioxide etc. to be transported to absorption tower by gas fume conveying system, desulfurizing agents a large amount of in absorption tower are transported to tower body by spray system, with certain pressure, fully contact with industrial waste gas with the desulfurizing agent of the ability of disengaging, produce chemical reaction, for at the bottom of making sulfur dioxide in waste gas generate sediment to flow to tower, by the slurries circulatory system, be discharged to tower outer circulation and utilize, the industrial gasses after desulfurizing and purifying are discharged in air through desulfurizing tower chimney again.
At present, in the techniques such as desulphurization denitration, flue gas conditioning, need to spray a fluid into definite position with spray gun, reach desirable mixed effect; During use, spray gun is in high-temperature flue gas, and the time one is long, high-temperature flue gas will make spray gun and the fluid superheat in gun barrel, and fluid tends to vaporize in gun barrel, causes spray gun internal pressure to rise, due to the variation of gun barrel internal pressure, do not reach desirable mixed effect.
In addition, the rising of the strong overpressure that fluid gasification causes, can cause spray gun explosion when serious, and service life is short, affects equipment and operating personnel's safety; The problems referred to above have been technical difficult problems for many years, are badly in need of solving.
Summary of the invention
The object of the present invention is to provide a kind of modified spray gun, improve desulphurization denitration operating efficiency, increase the service life simultaneously, reduce enterprise's use cost.
Modified spray gun, it is characterized in that: comprise spray gun inner tube, one end welding point of described spray gun inner tube, other end welding direct current shower nozzle, in the outside of described spray gun inner tube, be provided with spray gun outer tube, on described spray gun outer tube, welding is taken over, one end of described spray gun outer tube is sealedly and fixedly connected by the outer wall of end socket and described spray gun inner tube, other end welding tip cover, the other end of described nozzle cage forms necking end, the port of export of described direct current shower nozzle is arranged in described necking end, the port welding tip sleeve pipe of described necking end, the end welding tip head of described nozzle casing.
Further preferably, described nozzle head comprises nozzle carrier, on described nozzle carrier, is provided with nozzle, and the end of described nozzle forms a plurality of spray orifices, and the diameter of described spray orifice is between 0.5-1mm.The setting of this structure, is conducive to improve and expand the dispersion face of desulfurizing agent, improves the area of desulphurization denitration.
Further preferably, the cross-sectional diameter of described spray gun inner tube is at 10-15mm.
Further preferably, the cross-sectional diameter of described nozzle casing is at 7-12mm.
Further preferably, the cross-sectional diameter of described spray gun inner tube is greater than the cross-sectional diameter of described nozzle casing.This structure can increase the dynamics of injection, by large cavity, enters little cavity, and dynamics is concentrated, and impacts greatly, and material great efforts out from nozzle like this, improve quality and the efficiency of desulphurization denitration.
Further preferably, described nozzle head comprises nozzle carrier, on described nozzle carrier, is provided with nozzle, 1 of the end spout of described nozzle, and the diameter of described spout is between 1-2mm.This structure is to use in order to be applicable to different desulphurization denitration towers.
Compared with prior art, the present invention has following beneficial effect in the present invention:
1, the present invention in actual use; adapter on spray gun outer tube connects water under high pressure, and joint in spray gun inner tube connects urea, and water under high pressure can form the current of high pressure and impulsive force like this; can play the service life of protection spray gun inner tube, also reduce the production cost of enterprise.When operation, High-Pressure Water produces very large impulsive force, and flow velocity is fast, can reduce the surface temperature of spray gun outer tube, nozzle cage and nozzle casing, protects service life and the serviceability of whole spray gun.
2, the present invention is in order to improve jeting effect, strengthen effect and the efficiency of desulphurization denitration, the present invention includes spray gun inner tube, one end welding point of described spray gun inner tube, other end welding direct current shower nozzle, in the outside of described spray gun inner tube, be provided with spray gun outer tube, on described spray gun outer tube, welding is taken over, one end of described spray gun outer tube is sealedly and fixedly connected by the outer wall of end socket and described spray gun inner tube, other end welding tip cover, the other end of described nozzle cage forms necking end, the port of export of described direct current shower nozzle is arranged in described necking end, the port welding tip sleeve pipe of described necking end, the end welding tip head of described nozzle casing, in this structure, by nozzle cage, connect spray gun outer tube, nozzle casing, by welding, form an integral body, the powerful increase of structure, the present invention is also provided with direct current shower nozzle, dynamics and the effect of increase spraying, and and water under high pressure between form better mixed effect, finally from nozzle head out, good mixing effect, contributes to efficiency and the quality of follow-up desulphurization denitration operation.
As from the foregoing, the present invention improves desulphurization denitration operating efficiency, increases the service life simultaneously, reduces enterprise's use cost.
In order further to explain technical scheme of the present invention, below by specific embodiment, the present invention will be described in detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of nozzle head in the present invention.
Fig. 3 is another structural representation of nozzle head in the present invention.
The specific embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, the present invention relates to a kind of modified spray gun, it is characterized in that: comprise spray gun inner tube 1, one end welding point 2 of described spray gun inner tube 1, other end welding direct current shower nozzle 3, in the outside of described spray gun inner tube 1, be provided with spray gun outer tube 4, on described spray gun outer tube 4, welding takes over 5, one end of described spray gun outer tube 4 is sealedly and fixedly connected by end socket 6 and the outer wall of described spray gun inner tube 1, other end welding tip cover 7, the other end of described nozzle cage 7 forms necking end 8, the port of export 9 of described direct current shower nozzle 3 is arranged in described necking end 8, the port welding tip sleeve pipe 10 of described necking end 8, the end welding tip head 11 of described nozzle casing 10.
As shown in Figure 2, nozzle head described in the present invention 11 comprises nozzle carrier 12, on described nozzle carrier 12, is provided with nozzle 13, and the end of described nozzle 13 forms a plurality of spray orifices 14, and the diameter of described spray orifice 14 is between 0.5-1mm.
The cross-sectional diameter of the inner tube of spray gun described in the present invention is at 10-15mm.
The cross-sectional diameter of nozzle casing described in the present invention is at 7-12mm.
The cross-sectional diameter of the inner tube of spray gun described in the present invention is greater than the cross-sectional diameter of described nozzle casing.
As shown in Figure 3, nozzle head described in the present invention 11 comprises nozzle carrier 12, on described nozzle carrier 12, is provided with nozzle 13,1 of the end spout 15 of described nozzle 13, and the diameter of described spout 15 is between 1-2mm.
More than that the technical scheme that the embodiment of the present invention is provided is described in detail, having applied specific case herein sets forth the principle of the embodiment of the present invention and embodiment, the explanation of above embodiment, is only applicable to the principle that the embodiment of the present invention is understood in help; , for one of ordinary skill in the art, according to the embodiment of the present invention, in the specific embodiment and range of application, all can change to some extent, in sum, this description should not be construed as limitation of the present invention meanwhile.