JPH0593500U - White smoke generator - Google Patents

Abstract

(57) [Abstract] [Purpose] A white smoke generator that efficiently generates white smoke with respect to the amount of liquefied gas consumed. [Composition] A white smoke generating device in which a spray port 22 of hot water and a spray port 3 of liquefied gas are opposed to each other and are in cross-contact with each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a white smoke generating device that generates white smoke by contacting and vaporizing low-temperature liquefied gas such as liquid nitrogen, liquid air, and liquefied carbon dioxide gas with water.

[0002]

[Prior Art]

 Conventionally, as a white smoke generating device used to enhance the effect of production in various shows and events, a white smoke generating device as shown in FIG. 3 is known. This type of white smoke generator injects low-temperature liquefied gas such as liquid nitrogen, liquid air, and liquefied carbon dioxide onto the liquid surface of the water stored in the storage tank to vaporize it, and the entrained water ends at this time. It condenses and produces white smoke.

Hereinafter, liquid nitrogen (hereinafter referred to as LN) is used as a low temperature liquefied gas.₂Will be described as an example. The white smoke generating device 1 has LN on the water surface L of the hot water H.₂Disperse and LN₂The white smoke W is generated by vaporizing the water, and the mobile or fixed water tank 2 for storing the hot water H and the LN on the water surface L of the water tank 2₂LN having a spraying mechanism such as a spray nozzle for spraying₂It is provided above the spray port 3 and the water surface L of the water tank 2, ₂ Is substantially composed of a discharge port 4 for discharging white smoke W generated by contact with warm water into the air, and a heater 5 for heating and keeping warm water H.

A liquid level gauge 6 and a water supply pipe 7 are attached to the side surface 2 a of the water tank 2, and a drainage water distribution pipe 8 is attached to the bottom surface 2 b. Further, a mist trap 9, which is a filter for removing mist in the white smoke W, is attached to the discharge port 4. Further, LN ₂ is filled and stored in the pressure insulating container 10 for low temperature storage.

In order to generate white smoke W using this white smoke generator 1, first, water is introduced to a predetermined depth in the water tank 2 and heated to a predetermined temperature (usually about 80 ° C.) by the heater 5. It Next, the valve of the pressure insulating container 10 is opened, LN ₂ is supplied to the LN ₂ spray port 3, and sprayed on the water surface L of the hot water H to bring the LN ₂ into contact with the hot water. As a result, white smoke W is generated, the mist in the white smoke W is removed by the mist trap 9, and the white smoke W is discharged from the discharge port 4 into the air.

In order to stop the generation of white smoke W, the valve of the pressure insulation container 10 is closed and LN is closed. ₂ LN to spout 3₂The generation of white smoke W is stopped by stopping the supply of.

[0007]

[Problems to be solved by the device]

Meanwhile, the conventional white smoke generating device 1 has a drawback that the amount of liquefied gas such as LN ₂ used is substantially equal to the amount of white smoke W generated, and the running cost of LN ₂ is high. In particular, when it is necessary to generate a large amount of white smoke W in order to enhance the effect of a show or an event, a considerable amount of LN ₂ is consumed, which causes a cost increase.

Further, when the white smoke W is continuously generated for a long time, the temperature of LN ₂ is extremely low (about 77 ° K), so the water L is heated to keep the hot water H, but the water surface L There is a drawback in that it is cooled and freezes, the vaporization efficiency of LN ₂ is reduced, and therefore the amount of white smoke generated is reduced.

The present invention has been made in view of the above circumstances, and it is possible to prevent solidification of the liquid surface and a decrease in the amount of white smoke generated, and to reduce the amount of low-temperature liquefied gas used. Providing a generator.

[0010]

[Means for Solving the Problems]

 In the white smoke generating apparatus according to the present invention, a water tank for storing water, a spray port for introducing and spraying a low temperature liquefied gas above the water surface of the water tank, and a position above the water surface of the water tank are provided in the water tank. A discharge port that discharges the white smoke generated in the above to the outside of the water tank, and a water spray port that heats the water in the water tank and circulates the heated water in the vicinity of the spray port of the low temperature liquefied gas. The water spray port and the low temperature liquefied gas spray port are arranged so that the water sprayed from the spray port and the low temperature liquefied gas cross each other. ..

Further, instead of the water tank, a container provided with a discharge port for discharging white smoke to the outside is used, and warmed water and low temperature liquefied gas are introduced into this container and a spray port is provided. The spray ports are arranged so that the warm water and the low-temperature liquefied gas jetted through the nozzles cross-contact with each other.

[0012]

[Action]

 Since the present invention has the above-mentioned configuration, the low temperature liquefied gas and water are sufficiently mixed, and a small amount of the low temperature liquefied gas efficiently produces white smoke.

[0013]

【Example】

 FIG. 1 shows an embodiment of a white smoke generating device according to the present invention. This white smoke producing device 1'is an improvement of a part of the conventional white smoke producing device shown in FIG. 3, and the same reference numerals are given to the same elements as those in FIG. 3 to simplify the description.

The white smoke generating device 1 ′ of this embodiment is a circulating water sprinkling means 21 for extracting water from the bottom of the water tank 2 and spraying it on the liquid surface of the water tank in the water tank 2 of the white smoke generating device 1 of the conventional example. Is provided.

That is, the water sprinkling means 21 takes out the hot water H to the outside of the water tank 2 and sprinkles it by the water sprinkling port 22 to circulate it. The water sprinkling port 22, the circulation pump 23, and the pipes 24, 25. It is composed of and.

Further, LN ₂ in the pressure vessel 10 is led out by opening the valve and sprayed from the LN ₂ spray port 3, but the water spray port 22 and the LN ₂ spray port 3 are respectively jetted out. The hot water and the LN ₂ are provided so as to cross each other and come into contact with each other, for example.

In order to generate white smoke using this white smoke generating device 1 ′, first, water is put to a predetermined depth in the water tank 2 and heated to a predetermined temperature (usually about 80 ° C.) by the heater 5. It Next, the hot water H is circulated by the water sprinkling means 21, the valve of the pressure vessel 10 is opened, LN ₂ is supplied to the LN ₂ spray port 3, and the hot water and LN ₂ sprayed from these spray ports 22 and 3 are crossed. LN ₂ is vaporized by bringing them into contact. The vaporized nitrogen gas is efficiently mixed with water to form white smoke W, the mist in the white smoke W is removed by the mist trap 9, and the mist is discharged from the nozzle 4 into the air.

Further, generation stop of white smoke W closes the valve of the pressure vessel 10 is performed by stopping the supply of LN ₂ to LN ₂ distribution opening 3. In the above device, since water and LN ₂ are sprayed and contact each other, white smoke is efficiently generated with a relatively small amount of LN ₂ .

FIG. 2 shows another embodiment of the white smoke generating device according to the present invention. Instead of the water tank 2, a container 31 having a discharge port 4 is used and a separately provided hot water boiler is used. Hot water heated at 32 or the like is introduced and sprayed from the water sprinkling port 22 and LN ₂ is supplied from the pressure vessel 10 to the LN ₂ sprinkling port 3 arranged opposite to the water sprinkling port 22, for example. The hot water and LN ₂ sprayed from the spray ports 22 and 3 are cross-contacted with each other. In this case, not only is white smoke efficiently generated, but heating of the water tank 2 and circulation of water are not required, and the apparatus is simplified. Further, if a plurality of hot water spray ports 22 and a plurality of LN ₂ spray ports 3 are provided respectively, and the hot water spouted from these spray ports 22 and 3 and LN ₂ are arranged so as to intersect in each direction, The contact effect is further enhanced and the white smoke generation efficiency is improved.

[0020]

[Effect of the device]

As described above, in the white smoke generating device according to the present invention, the water spray port and the low temperature liquefied gas spray port are provided opposite to each other, and both are violently contacted with each other and mixed sufficiently, so that the consumption is reduced. Efficient white smoke is generated for the LN ₂ . In addition, since the extremely low temperature liquefied gas and hot water are spray-contacted in a hot water tank equipped with a heating device, the surrounding area is a warmed area, and there is no icing in the water tank. In addition, it produces an effect that can generate and sustain preferable generation of white smoke.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a white smoke generating device according to the present invention.

FIG. 2 is a view showing another example of the white smoke generating device according to the present invention.

FIG. 3 is a diagram showing a conventional white smoke generating device.

[Explanation of symbols]

1,1 ', 1 "White smoke generator 2 Water tank 3 Liquid nitrogen spray port 4 Discharge port 5 Heater 6 Liquid level gauge 7 Water supply pipe 8 Drain pipe 9 Mist trap 10 Pressure insulation container 21 Circulating water spraying means 22 Water spray port 23 Circulation Pump 31 Container 32 Hot water boiler H Hot water W White smoke LN ₂ Liquid nitrogen

Claims (3)

[Scope of utility model registration request] 1. A water tank for storing water, a spray port for introducing and spraying a low-temperature liquefied gas above the water surface of the water tank, and a white smoke generated in the water tank provided above the water surface of the water tank. A discharge port for discharging to the outside of the water tank, a water spray port for heating the water in the water tank and circulating and spraying the heated water in the vicinity of the spray port of the low temperature liquefied gas are provided. A white smoke generating device, characterized in that the water spray port and the low temperature liquefied gas spray port are arranged so that the water sprayed by each spray port and the low temperature liquefied gas are in cross contact with each other. 2. A container provided with a discharge port for discharging white smoke generated in the container to the outside, a low-temperature liquefied gas spray port provided in the container for spraying the introduced liquefied gas, and A white smoke generating device, comprising: a water sprinkling port for sprinkling heated water so as to cross-contact the low temperature liquefied gas sprinkled from the low temperature liquefied gas sprinkling port. 3. The low-temperature liquefied gas sprinkling port and the water sprinkling port are plural in number, and claim 1 or claim 2 characterized by the above-mentioned.
White smoke generator.