JPS6357704B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a humidifying method and a humidifying device that utilize hot water heat, and includes heating supply water for humidification with a hot water heat source and sucking the gas phase part with a vacuum pump to create a negative pressure.
The purpose is to generate humidifying steam at low cost with a simple device using a method of lowering its boiling point.

Among conventional humidification methods and devices, in the technology of boiling and evaporating water to generate humidifying steam,
Since the water supply for humidification was heated at atmospheric pressure or higher pressure, the boiling point of the water supply was
It becomes over 100℃. As a result, not only is it not possible to generate relatively low-temperature humidifying steam of 100℃ or less, but the heat source for steam generation is limited to 100℃.
It was not possible to make effective use of the hot water.

The present invention heats supply water for humidification with a humidification steam generator that also serves as a heat exchanger installed in a hot water container of a hot water generator, and sucks the gas phase inside the generator with a vacuum pump to create negative pressure. By lowering the boiling point of the feed water and boiling it at a relatively low temperature of less than 100℃,
The generated humidifying steam is sent to the room to be humidified.

Next, examples of implementation procedures and examples of the present invention will be described based on the drawings.

FIG. 1 shows an outline of the equipment and system of the device, and shows a hot water container 3 of a hot water generating device 2 having a heat source 1.
A humidifying steam generator 4 is attached to the humidifying steam generator 4, and the hot water in the hot water container 3 can be supplied from the water supply channel 5 to the humidifying steam generator 4. The gas phase portion 4a is connected to the suction port 6a of the vacuum pump 6 through an intake pipe 7. The vacuum pump 6 is a water ring type vacuum pump, and is supplied with water for water sealing from its makeup water tank 9 via a makeup water pipe 10. The discharge port 6b of the vacuum pump 6 is connected to the gas phase part 9a in the make-up water tank 9 through the air pipe 8, and the gas phase part 9a is connected to the room 11 to be humidified through the air pipe 8.

The water in the humidifying steam generator 4 is kept at about 80-90°C by humidifying it with the hot water in the hot water container 3, and the vacuum pump 6 is driven to open the gas phase part 4a of the humidifying steam generator 4. When the negative pressure is about 400 mmHg (that is, about 360 mmHg absolute pressure), the boiling point of the hot water in the humidifying steam generator 4 decreases, and the saturated steam pressure corresponds to the above pressure.
The water vapor is brought to a boiling state at a temperature of 80°C, and this water vapor is sucked into the vacuum pump 6 through the intake pipe 7, and is sent from the air supply pipe 8 to the gas phase section 9a of the make-up water tank 9, and from there the room 11 to be humidified. and is blown out from the humidifying steam outlet 8a.

In order to prevent condensation of water vapor on the discharge side of the vacuum pump 6 due to an increase in pressure and a decrease in temperature, a large amount of gas ballast air is supplied to the discharge side of the vacuum pump 6 through an air suction pipe 12 . Humidifying water vapor is mixed with this gas ballast air and diluted, reducing its partial pressure and making it difficult to condense.In order to prevent the water vapor from being cooled by this gas ballast air, the air inlet The gas ballast air sucked from 12a is heated in an air warmer 12b attached to the hot water container 3, and then fed to the air suction pipe 12.

The hot water in the humidifying steam generator 4 becomes humidifying steam and is consumed, but the electromagnetic valve 5 of the water supply channel 5 is controlled by the liquid level control device 13 via a signal from the liquid level detector 4b.
By opening and closing a, the amount of water is automatically adjusted. Note that water may be supplied to the humidifying steam generator 4 from the water supply source 14.

Further, the water level in the make-up water tank 9 is automatically adjusted by replenishment from the make-up water pipe 15 connected to the water supply source 16 via a float valve 9b.

Note that 17 is a throttle valve, 18 is a check valve, and 19 is a heating source.

Note that various boilers can be used as the hot water generator 2 and the boiler body can be used as the hot water container 3. In addition, hot water from hot water boilers of air conditioning equipment and hot water storage tanks for heat storage can be applied.
The heat source for heating the humidifying steam generator 4 is not limited to the hot water in the hot water container 3, but a method of directly heating the humidifying steam generator 4 with a gas burner or the like may also be considered.

In addition, when the above-mentioned water ring type vacuum pump is used as the vacuum pump 6, the operating cost is low, but in addition, a circulating water type water ring type vacuum pump, a mechanical booster type water ring type vacuum pump, an air ejector type vacuum pump can be used. A water ring type vacuum pump or other various vacuum pumps can be used.

Further, as in the above embodiment, the negative pressure within the humidifying steam generator 4 is not limited to the negative pressure of approximately 400 mmHg, but may be appropriately set depending on the desired temperature of the humidifying steam.

Note that the rooms 11 to be humidified include various rooms such as a steam bath bathroom, a room in a building, a room in a general household, a hospital room, and an indoor room in a factory.

As a modification of the above embodiment, a part thereof can be changed as follows.

In order to supply humidifying steam to the passenger compartment of a passenger car, bus, or truck, hot water from a radiator 21 of a water-cooled engine 20 is used, as shown in FIG.

That is, a humidifying steam generator 4 equipped with an air warmer 12b is attached to the upper tank 21a of the radiator 21, and the water level in the humidifying steam generator 4 is determined by a signal from the liquid level detector 4b. By operating the electromagnetic valve 5a with the liquid level control device 13, water in the humidifying water supply tank 22 is replenished and the water level in the humidifying steam generator 4 is automatically adjusted. When the engine is running, the engine cooling water cools each part of the engine.
The cooling water is heated to a temperature of about 100° C., returns to the upper tank 21a, is air-cooled by the radiator body 21b, and is then pressure-fed to the engine 20. The hot water in this upper tank 21a is about 80-90°C, and this hot water warms the water in the humidifying steam generator 4.
By applying a negative pressure to the gas phase part 4a with a vacuum pump (not shown), water vapor is generated, which is sucked by the vacuum pump and mixed with the gas ballast air taken in from the air intake port. Deliver to the passenger compartment. Air flow rate and air warmer 1 for gas ballast
By appropriately setting the capacity of 2b, the humidifying steam temperature can be adjusted.

Since the present invention is configured as described above, it has the following effects.

By reducing the pressure inside the humidifying steam generator to negative pressure with a vacuum pump and lowering the boiling point of the humidifying water supply,
Using relatively low-temperature hot water heat, steam can be generated and humidified at an extremely low cost using a device with a simple structure.

Furthermore, by appropriately selecting the suction negative pressure of the vacuum pump, the temperature of the humidifying steam can be appropriately set.

And 100 degrees Celsius, which would otherwise have to be waste heat.
Humidifying steam can be generated using low-temperature hot water at the following various temperatures as a heat source.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a flow path/control system diagram of the component equipment, and FIG. 2 is a longitudinal sectional side view of a main part of another embodiment. DESCRIPTION OF SYMBOLS 1... Heat source, 2... Hot water generator, 3... Hot water container, 4... Steam generator for humidification, 4a... Gas phase section, 6... Vacuum pump, 6a... Inlet, 6b...
...Discharge port, 7...Intake pipe, 8...Air supply pipe, 11...
...Room to be humidified, 20...Engine, 2
1...Radiator.

Claims (1)

[Claims] 1. The water in the hot water container 3 of the hot water generator 2 is used as the heat source 1.
The water in the humidifying steam generator 4 is heated with this hot water to make hot water, and the gas phase part 4a in the humidifying steam generator 4 is sucked by the vacuum pump 6 to create negative pressure. By lowering the boiling point of the hot water in the humidifying steam generator 4 by boiling it, the steam generated by this boiling is blown out into the room 11 to be humidified to humidify it. Humidification method. 2 The water in the hot water container 3 can be heated by the heat source 1, the humidifying steam generator 4 is attached to the hot water container 3, and the water in the humidifying steam generator 4 is heated with the hot water in the hot water container 3. The gas phase part 4a in the humidifying steam generator 4 and the suction port 6a of the vacuum pump 6 are connected through an intake pipe 7, and the discharge port 6b of the vacuum pump 6 and the room 11 to be humidified are connected to each other by a suction pipe 7. The boiling point of the hot water in the humidifying steam generator 4 is lowered by connecting them through an air supply pipe 8 and suctioning the gas phase part 4a in the humidifying steam generator 4 with a vacuum pump 6 to create a negative pressure. A humidifying device that uses hot water heat. 3. In the humidifying device according to claim 2, the hot water generating device 2 is a hot water boiler, and the hot water container is a boiler main body. 4 In the humidifying device described in claim 2 or 3, the room 11 to be humidified
is a general room in a building. 5 In the humidifying device described in claim 2 or 3, the room 11 to be humidified
What is a steam bath bathroom? 6 In the humidifying device described in claim 2, the hot water generating device 2 is the engine 20 of the vehicle, and the hot water container 3 is the radiator 2 of the engine 20.
1, and the room 11 to be humidified is the passenger compartment of a vehicle.