CN212236484U

CN212236484U - Fog gun machine with preheating function

Info

Publication number: CN212236484U
Application number: CN202020323886.4U
Authority: CN
Inventors: 高润泽; 王鹏飞; 刘荣华; 邬高高
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-12-29
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a fog gun machine with preheating function, which comprises a spraying gun barrel, an angle adjusting device, a rotating device and a preheating box; the rotating device is arranged on the preheating box, the spraying gun barrel is hinged on the rotating device, and an angle adjusting device is arranged at the hinged position of the spraying gun barrel and the rotating device; a plurality of nozzles and a fan are arranged in the spray gun barrel; the preheating box comprises a shell, a heating water pipe and a temperature control switch; the heating water pipe is arranged in the shell, an electric heating rod is arranged in the heating water pipe, and the electric heating rod is connected with the temperature control switch; the heating water pipe is respectively connected with a water outlet and a water inlet on the shell; the water outlet is connected with the nozzle through a water conduit. The utility model discloses can improve the temperature to the preheating of spraying water, reduce its surface tension to reduce the spraying particle diameter, improve dust removal effect, the utility model discloses still have simple structure, easy and simple to handle, easy to maintain, the high advantage of security.

Description

Fog gun machine with preheating function

Technical Field

The utility model belongs to the technical field of the environmental protection, in particular to fog gun machine that has preheating function.

Background

The fog gun machine is a water mist dust suppression and reduction device, and is widely applied to dust removal and reduction in severe dust raising industries such as coking plants, coal yards, mines, steel plants, cement, chemical industry, stone material plants and the like. The dust fall effect of the fog gun machine is closely related to the surface tension of water, and the smaller the surface tension of the water is, the smaller the particle size of the generated fog drops is, and the better the atomization effect is. Generally, the surface tension of water gradually increases as the temperature decreases. In northern areas in winter, the water supply pipe network has lower water temperature, thereby influencing the normal atomization effect of the fog gun machine. The water in a water tank or a water supply network is pressurized by a water pump and then is used for spraying, and the actual dust fall efficiency is limited by the water temperature of the water supply network. In order to solve the problem, the utility model discloses a fog gun machine that possesses preheat function.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a simple structure, convenient operation can improve the used fog gun car's of northern construction operation dust collection efficiency's in winter fog gun machine that has the function of preheating.

The utility model adopts the technical proposal that: a fog gun machine with a preheating function comprises a fog gun barrel, an angle adjusting device, a rotating device and a preheating box; the rotating device is arranged on the preheating box, the spraying gun barrel is hinged on the rotating device, and an angle adjusting device is arranged at the hinged position of the spraying gun barrel and the rotating device; a plurality of nozzles and a fan are arranged in the spray gun barrel; the preheating box comprises a shell, a heating water pipe and a temperature control switch; the heating water pipe is arranged in the shell, an electric heating rod is arranged in the heating water pipe, and the electric heating rod is connected with the temperature control switch; the heating water pipe is respectively connected with a water outlet and a water inlet on the shell; the water outlet is connected with the nozzle through a water conduit.

In the fog gun machine with the preheating function, the shell is provided with the access door, and the access door is provided with the console of the temperature control switch; the console is electrically connected with the temperature control switch.

In the fog gun machine with the preheating function, the shell of the preheating box is also internally provided with a water pipe, one ends of the water pipe and the heating water pipe are respectively connected to two water outlets of the reversing valve, an inlet of the reversing valve is connected with a water outlet of the water pump, and a water inlet of the water pump is connected with a water inlet; the other ends of the water pipe and the heating water pipe are connected with a water outlet through a tee joint.

In the fog gun machine with the preheating function, the shell of the preheating box is cuboid, and at least one side surface of the shell is provided with the access door.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a setting and fog gun machine preheating cabinet as an organic whole can preheat the spraying water, reduces the surface tension of water, changes the droplet particle diameter of spraying to reach the purpose that improves fog gun machine dust fall efficiency. The utility model discloses be equipped with the control cabinet on the casing, can survey the temperature in the heat pipe in real time to change temperature detect switch's predetermined temperature, also can automatic cutout electric current when the short circuit takes place for the heating circuit. The utility model discloses the inside switching-over valve and the water pipe of being equipped with of preheating cabinet, accessible governing valve draws water to ordinary water pipe when outside temperature reaches the dust fall requirement, uses as general fog gun machine. The utility model discloses simple structure still has, and is easy and simple to handle, easy to maintain, the high advantage of security.

Drawings

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

Fig. 2 is a sectional view of the preheating box of the present invention.

In the figure: 1-a water conduit; 2-spraying the gun barrel; 3-an angle adjustment mechanism; 4-a fan; 5-a rotating mechanism; a console; 8-an access door; 201-water outlet; 202-temperature controlled switch; heating the water pipe; 204-an electric heating rod; 205-a water pump; 206-a water inlet; 207-a reversing valve; 208-common water pipe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model discloses a fog gun machine with preheating function, which comprises a spraying gun barrel 2, an angle adjusting mechanism 3, a rotating mechanism 5 and a preheating box. The rotary mechanism 5 is arranged at the top of the preheating box, the spraying gun barrel 2 is hinged on the rotary mechanism 5, and the rotary mechanism 5 enables the spraying gun barrel 2 to rotate 360 degrees in the horizontal plane. The spraying gun barrel 2 is provided with an angle adjusting mechanism 3 at the hinged position with the rotating mechanism 5, and the angle adjusting mechanism 3 is used for adjusting the pitching angle of the spraying gun barrel 2. The spraying gun barrel 2 is provided with a plurality of nozzles and a fan 4.

As shown in fig. 2, the preheating tank includes a housing, a heating water pipe 203, a temperature control switch 202, a water pipe 208, a water pump 205 and a reversing valve 207, wherein one end of the water pipe 208 and one end of the heating water pipe 203 are respectively connected to two outlets of the reversing valve 207, an inlet of the reversing valve 207 is connected to a water outlet of the water pump 205, and a water inlet of the water pump 205 is communicated with a water inlet 206 on the housing. The other ends of the water pipe 208 and the heating water pipe 203 are connected with the water outlet 201 on the shell through a tee joint. An electric heating rod 204 is arranged in the heating water pipe 203, and the electric heating rod 204 is connected with the temperature control switch 202. The casing is square, and its at least one side is equipped with access door 8. A control console 6 of a temperature control switch is arranged on an access door 8; the console 6 is electrically connected to the temperature controlled switch 202. The console 6 can control the temperature control switch 202 to automatically adjust the temperature or cut off the current according to the temperature of water in the pipe. The water outlet is connected with a nozzle in the spray gun barrel 2 through a water conduit 2.

The utility model discloses during the operation, outside water gets into from water inlet 206, flows through switching-over valve 207 after water pump 205 pressurizes. The direction change valve 207 controls the flow direction of water, and when the temperature of water is low, the direction change valve 207 guides the water to the heating water pipe 203. The diverter valve 207 may also be adjusted to direct water to the water line 208 when water temperature is normal. When water flows to the water pipe 208, the water in the water pipe 208 is directly used for nozzle spraying through the water outlet 201 and the water conduit 1. When water flows toward the heating water pipe 203, the electric heating rod 204 disposed inside the heating water pipe 203 emits a large amount of heat to be absorbed by the water, thereby increasing the temperature of the water. In addition, real-time water temperature can be checked through the console 6, and the preheating value of the temperature control switch 202 can be adjusted through the console 6, so that the required heating temperature can be autonomously grasped. When the heating circuit is short-circuited, the console 6 can control the temperature control switch 202 to automatically cut off the current. After the temperature of the water in the heating water pipe 203 is raised, the water also flows through the water outlet 201, and the water conduit 1 is used for a nozzle. Meanwhile, the effect of controlling the spraying distance of the fog gun machine can be achieved by adjusting the power of the fan 4.

The utility model provides the high principle of dust removal effect:

one is the effect of temperature on the surface tension of the liquid: on one hand, as the temperature rises, the thermal motion of molecules is intensified, the kinetic energy is increased, and the intermolecular attraction is weakened, so that the energy required by liquid molecules from the inside to the surface is reduced; on the other hand, the difference in density between the two bulk phases adjacent to the surface layer is small, and the surface tension is reduced. Both factors are macroscopically represented by a decrease in surface tension with an increase in temperature.

Secondly, the influence of surface tension on the particle size of the fog drops is as follows: the spray nozzle atomization is a multi-phase and transient process, most atomization energy is consumed to break liquid at a spray nozzle to form a film or a liquid filament, then a large velocity gradient is generated, the film or the liquid filament is stretched to a breaking point through high-speed friction with air, and finally fog drops are formed. In the initial development of the instability of the liquid jet, surface tension has a certain resistance to the atomisation of the liquid. There are studies that show that the droplet size is proportional to the third power of the surface tension. That is, the smaller the surface tension, the smaller the droplet size.

In the spray dust settling method, the smaller the particle size of the droplets, the larger the number of droplets per unit space, the longer the droplets float in the air, the more sufficient the droplets contact with dust, and the better the dust removal effect. In cold seasons in the north, the water temperature of the spraying water is somehow even close to zero, and the dust settling effect is influenced to a certain extent. The utility model discloses an increase integration preheating device and improve the temperature to dust collection efficiency under the cold condition has been promoted.

Claims

1. The utility model provides a fog gun machine that has preheating function which characterized in that: comprises a spraying gun barrel, an angle adjusting device, a rotating device and a preheating box; the rotating device is arranged on the preheating box, the spraying gun barrel is hinged on the rotating device, and an angle adjusting device is arranged at the hinged position of the spraying gun barrel and the rotating device; a plurality of nozzles and a fan are arranged in the spray gun barrel; the preheating box comprises a shell, a heating water pipe and a temperature control switch; the heating water pipe is arranged in the shell, an electric heating rod is arranged in the heating water pipe, and the electric heating rod is connected with the temperature control switch; the heating water pipe is respectively connected with a water outlet and a water inlet on the shell; the water outlet is connected with the nozzle through a water conduit.

2. The fog gun machine with the preheating function according to claim 1, characterized in that: an access door is arranged on the shell, and a console of a temperature control switch is arranged on the access door; the console is electrically connected with the temperature control switch.

3. The fog gun machine with the preheating function according to claim 1, characterized in that: a water pipe is also arranged in the shell of the preheating box, one end of the water pipe and one end of the heating water pipe are respectively connected to two water outlets of a reversing valve, an inlet of the reversing valve is connected with a water outlet of a water pump, and a water inlet of the water pump is connected with a water inlet; the other ends of the water pipe and the heating water pipe are connected with a water outlet through a tee joint.

4. The fog gun machine with the preheating function according to claim 1, characterized in that: the shell of the preheating box is cuboid, and at least one side surface of the shell is provided with an access door.