CN205288757U - A draw and penetrate atomizing device for opening wide space dust is administered - Google Patents

Abstract

The utility model relates to an injection atomization device for dust control in an open space, which comprises an air suction chamber, a spray pipe, a mixing chamber, a diffusion chamber and an atomizer which are sequentially arranged coaxially along the gas output direction, wherein the air suction chamber It is a reduced-diameter cavity whose input port is larger than the output port, and the diffusion chamber is an enlarged-diameter cavity whose input port is smaller than the output port. The two ends of the mixing chamber are respectively connected with the output port of the suction chamber and the input port of the diffusion chamber. Shrunken and inserted into the suction chamber, the atomizer is a through-pipe nozzle with a spiral channel mounted on the diffuser chamber. The utility model utilizes the principle of fluid collision atomization, sucks the surrounding gas through the liquid when it is sprayed, and transfers the kinetic energy of the liquid to the gas to drive the gas to flow at a high speed. It is sprayed out by the device to produce smaller mist droplets and continue to mix and absorb in the space, thus achieving the effect of mixed atomization absorption and dust control.

Description

Ejector Atomization Device for Dust Control in Open Space

technical field

The utility model belongs to the technical field of environmental protection facilities, and relates to a device for controlling dust in an open space, in particular to an injection atomization device which uses liquid jets to generate negative pressure and can atomize liquid.

Background technique

Industrial dust emission is an important cause of regional environmental air pollution and smog weather, while the dust emission of large-scale machining workshops, paint coating workshops, cement powder packaging workshops, natural ventilation granulation towers and other open space facilities often cause surrounding pollution. Serious pollution of the atmospheric environment. Traditional open space dust control methods require high-power exhaust fans, washing and absorption equipment, which have the disadvantages of large equipment investment, high energy consumption, high operating costs, and unsatisfactory control effects.

Utility model content

The purpose of the utility model is to solve the problems existing in the prior art, and to provide an injection atomization device for dust control in open spaces. industrial dust.

The technical solution adopted to achieve the above-mentioned invention is as follows: the injection atomization device provided for dust control in an open space includes a suction chamber, an injection pipe, a mixing chamber, Diffusion chamber and atomizer, wherein, the suction chamber is a cavity with a reduced diameter whose input port is larger than the output port, the diffusion chamber is a cavity with an enlarged diameter whose input port is smaller than the output port, and the mixing chamber is a cavity with two ends connected to the suction port respectively. The equal-diameter cavity connected to the output port of the diffusion chamber and the input port of the diffusion chamber, the outlet diameter of the injection pipe is shrunk and inserted into the suction chamber, and one end of the atomizer is installed through the diffusion chamber, which is a through-hole with a spiral channel. Tube nozzle.

In the above ejection atomization device for dust control in open spaces, the outlet end of the injection pipe inserted into the suction chamber has a certain distance from the mixing chamber, and the distance between the injection pipe and the mixing chamber is adjustable. spacing adjustment parts.

In the above ejection atomization device for dust control in open spaces, the output end of the diffusion chamber has a section of equal-diameter inner-circumferential threaded surface, and the input end of the atomizer has an equal-diameter outer-circumferential threaded surface. The diffusion chamber and the atomizer Installed together through the screw thread between the two.

In the above ejection atomization device for dust control in open spaces, the atomization angle of the atomizer is 60°-150°.

The working principle of the structure of the utility model is as follows: one end of the injection pipe is connected with the pressurized water, and the other end is inserted into the air suction chamber, which is used to inhale the surrounding gas, and there is a gap between the inner wall and the outer wall of the injection pipe; the mixing chamber and the outer wall of the injection pipe The spray pipe is not in contact, and the spray pipe is provided with a radial adjustment component, which can adjust the distance between the spray pipe and the mixing chamber; the diameter of the exit of the spray pipe is contracted to spray liquid. When the device starts to work, water is jetted out at high speed from the injection nozzle, and a negative pressure is generated at the inlet of the mixing tube, and the gas is brought into the mixing chamber through the suction chamber; after the gas-liquid is mixed and absorbed in the mixing chamber, it enters the diffusion chamber, and the gas-liquid mixture After mixed and boosted in the diffusion chamber, it enters the atomizer, and finally the atomized droplets are sprayed out at a certain angle through the atomizer.

Compared with the prior art, the beneficial effects of the utility model are as follows.

The injection atomization device cleverly utilizes the principle of fluid collision atomization, so that the liquid inhales the surrounding gas when spraying, and transfers the kinetic energy of the liquid to the gas to drive the gas flow, and achieve the maximum liquid-gas ratio on the basis of ensuring a certain negative pressure. , so as to increase the flow rate of the gas, and at the same time form a "gas in liquid" in the diffusion chamber, which is finally sprayed out by the atomizer to produce smaller droplets and continue to mix and absorb in the space, thus achieving mixed atomization absorption and dust control Effect.

The product of the utility model can be widely used in the treatment of dust and harmful gases in open spaces (such as paint painting workshops and paint workshops) and granulation towers. Taking the dust recovery device on the top of the granulation tower as an example, several injection atomization devices described in the present invention are distributed in the dust recovery device, and the injection direction is consistent with the flow direction of the tail gas. The pressure can increase the flow rate of the rising dust-laden gas. At the same time, the gas-liquid mixture is dispersed through the atomizer and then meets and collides. They are sprayed upward together and mixed, so as to achieve the purpose of absorbing dust. The utility model is applied in the dust recovery system of the granulation tower, drives the flow speed of the tail gas, reduces the resistance of the dust recovery device, does not need to use a high-power fan to provide kinetic energy for the gas, and reduces the influence of the dust removal device on the granulation system. Significant energy saving and efficiency enhancement.

Description of drawings

Fig. 1 is a schematic structural view of a specific embodiment of the present invention.

The names of the numbers in the figure are: 1-suction chamber; 2-jet pipe; 3-mixing chamber; 4-diffusion chamber; 5-atomizer.

detailed description

Referring to the accompanying drawings, the injection atomization device for dust control in open space described in the utility model includes an air suction chamber 1, an injection pipe 2, a mixing chamber 3, a diffusion chamber 4 and a mist Converter 5.

The suction chamber 1 is a reduced-diameter cavity whose input port is larger than the output port, and its input port is open to communicate with the outside air. The mixing chamber 3 is an equal-diameter cavity, and its two ends are respectively connected with the output port of the suction chamber 1 and the input port of the diffusion chamber 4 . The diffusion chamber 4 is an enlarged-diameter cavity with an input port smaller than the output port, and has a section of equal-diameter inner circumferential threaded surface at its output end for connecting with the atomizer 5 . The atomizer 5 is a through-pipe nozzle with a spiral channel, and its input end has a section of equal-diameter outer circumferential threaded surface. Diffusion chamber 4 and atomizer 5 are installed through through, and the installation angle coincides with the helix angle of the screw thread. The axis of the tube and nebulizer must be coaxial. The injection pipe 2 is inserted into the suction chamber 1, the injection pipe 2 is not in contact with the suction chamber 1 and the mixing chamber 3, and the end of the injection pipe 2 is provided with a distance adjusting part, which can adjust the distance between the injection pipe 2 and the mixing chamber 3 .

In actual work, the liquid (such as water, lye, etc.) enters the mixing chamber 3 from the injection pipe 2 after the pressure is increased by the circulating pump, and the pressure of the liquid in the injection pipe can be adjusted freely between 0.1 and 0.6 MPa; When the high-speed liquid is flowing, due to the viscous effect of the liquid boundary layer, the jet liquid will bring the gas from the suction chamber 1 into the mixing chamber 3, and a negative pressure will be generated in the mixing chamber 3; the relative motion of the gas and the liquid makes the liquid become The gas-liquid mixture collides and impacts in the mixing chamber 3, and transfers energy to the gas. In the diffusion chamber 4, the pressure of the gas-liquid mixture increases, the gas is compressed, and finally dispersed by the atomizer 5 It forms small droplets and sprays them out at a certain angle, achieving the effects of mixed atomization absorption and dust control.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model in any form. However, any content that does not depart from the technical solution of the present utility model is based on the technical essence of the present utility model. Any simple modifications, equivalent changes and modifications still belong to the scope of the technical solution of the present utility model.

Claims (4)

1. An injection atomization device for dust control in open spaces, characterized in that: it comprises a suction chamber (1), an injection pipe (2), a mixing chamber (3), Diffusion chamber (4) and atomizer (5), wherein the suction chamber (1) is a reduced-diameter cavity with an input port larger than the output port, and the diffusion chamber (4) is an enlarged-diameter cavity with an input port smaller than the output port The mixing chamber (3) is an equal-diameter cavity whose two ends are respectively connected to the output port of the suction chamber (1) and the input port of the diffusion chamber (4). In the suction chamber (1), one end of the atomizer (5) is installed through the diffuser chamber (4), which is a through-pipe nozzle with a spiral passage. 2. The injection atomization device for dust control in open space according to claim 1, characterized in that: the outlet end of the injection pipe (2) inserted into the suction chamber (1) is 3 ) has a certain distance, and a distance adjusting part that can adjust the distance between the spray pipe (2) and the mixing chamber (3) is arranged on the spray pipe (2). 3. The injection atomization device for dust control in open space according to claim 1, characterized in that: the output end of the diffusion chamber (4) has a threaded surface of equal diameter inner circumference, and the input of the atomizer (5) The end portion has a section of threaded surface of equal diameter outer circumference, and the diffusion chamber (4) and the atomizer (5) are installed together through the surface threads between the two. 4. The injection atomization device for dust control in open space according to claim 1, characterized in that: the atomization angle of the atomizer (5) is 60°-150°.