JP3084945B2 - humidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier for supplying moisture to dry air in a room or the like to increase the humidity.

[0002]

2. Description of the Related Art Conventionally, as a humidifier, there has been a spontaneous evaporation type, but there has been a problem that the humidifying ability is small. On the other hand, if the humidification area is increased, the humidification ability is improved, but the apparatus becomes large. Therefore, in order to improve the humidifying ability, a heater for increasing the temperature of the humidified air or the temperature of the humidifying water has been provided.

However, since a heater, a power supply means for the heater, a safety circuit, and the like are required, there has been a problem that the structure becomes complicated and the manufacturing cost increases. on the other hand,
Among the total heat exchangers and the like using a water vapor permeable membrane, those utilizing the exhaust heat of a ventilator have been devised (see, for example, JP-A-2-110237). This aims to simultaneously exchange sensible heat and latent heat of exhaust heat.

[0004] However, since this total heat exchanger uses a corrosive aqueous solution such as calcium chloride as a heat transfer medium, it is necessary to use a material having excellent corrosion resistance, which increases the production cost. Accordingly, an object of the present invention is to provide a humidifier that is inexpensive and has excellent humidification ability.

[0005]

A humidifier according to a first aspect of the present invention is a humidifier provided in a ventilation path including an air supply path and an exhaust path, wherein the humidifier has a container shape for storing humidification water. A plurality of first tubes made of a water vapor permeable material, which are housed in the humidifier body, and both ends of which are open to the air supply passage through a pair of opposed end surfaces of the humidifier body; And a second pipe made of a heat conductive material, which is housed in the humidifier main body and has both ends penetrating through the pair of end faces and opening to the exhaust path.

[0006]

According to the humidifier of the first aspect, the heat of the exhaust gas introduced into the second pipe is transmitted to the water in the humidifier body via the second pipe made of a heat conductive material. You. This allows
In the humidifier body, the temperature of the water near the second pipe becomes higher than the temperature of the water near the first pipe. Due to this temperature difference, convection of water occurs in the humidifier main body, and the temperature of the water in the humidifier main body is raised as a whole by heat diffusion due to the convection. Here, the amount of humidification greatly depends on the temperature of the water used for humidification. Therefore, the increase in the temperature of the water greatly increases the amount of humidification given to the air supply through the first pipe made of the water vapor permeable material. Can be increased.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a partially broken schematic perspective view of a humidifier according to one embodiment of the present invention. Referring to FIG.
Is disposed in a ventilation path including an air supply path P for introducing outside air into a room and an exhaust path Q for discharging room air to the outside, and is a container-shaped humidifier body containing water for humidification. 1
And a large number of first pipes 2 and second pipes 3 housed in the humidifier main body 1. The air supply and the exhaust air are flowed by a fan of a ventilator (not shown), and the air supply direction and the air exhaust direction are opposite to each other. The first pipe 2 and the second pipe 3 are provided in substantially the same number. First tube 2
Are arranged along the air supply direction, and the second pipe 3 is arranged along the exhaust direction.

The humidifier body 1 has an air supply path P and an exhaust path Q
It is arranged in a state of straddling. A supply port 11 for supplying water into the humidifier body 1 is provided at an upper portion of the humidifier body 1. Both end surfaces 1a of the humidifier main body 1,
1b penetrates both ends of the first pipe 2, and both ends of the penetrated first pipe 2 are open to the air supply path P. Thereby, the supply air flows through the first pipe 2. Further, both end surfaces 1a and 1b of the humidifier body 1 penetrate both end portions of the second pipe 3, and both end portions of the penetrated second pipe 3 are open to the exhaust path Q. As a result, exhaust gas flows through the second pipe 3.

The first pipe 2 is made of a water vapor permeable membrane such as a hydrophobic porous membrane or a hydrophilic non-porous membrane, and introduces water in the humidifier main body 1 as water vapor into the inside of the humidifier and feeds the water through the inside. Humidifies the mind. As the water vapor permeable membrane, a processed or polymerized resin based on fluorine, polyethylene, polypropylene or the like can be used. Note that the first tube 2 may be used as a composite structure of a water vapor permeable membrane and another permeable cloth (such as a nonwoven fabric).

As a material of the second tube 3, a metal having excellent heat conductivity such as copper, stainless steel and aluminum, or a material having excellent durability such as a heat conductive resin can be used. The second pipe 3 transfers the heat of the exhaust gas flowing inside,
The water W in the humidifier body 1 is conducted. According to the humidifier according to this embodiment, the heat of the exhaust gas introduced into the second pipe 3 is
The water W in the humidifier body 1 is transmitted through the second pipe 3. Thereby, in the humidifier main body 1, the temperature of the water W in the vicinity of the second pipe 3 becomes higher than the temperature of the water in the vicinity of the first pipe 2. Due to this temperature difference, convection of the water W occurs in the humidifier main body 1, and the temperature of the water W in the humidifier main body 1 is entirely increased by heat diffusion due to the convection. Here, the amount of humidification largely depends on the temperature of the water used for humidification. Therefore, the increase in the temperature of the water W causes the amount of humidification given to the air supply through the first pipe 2 made of the water vapor permeable material. It can be greatly increased.

[0011] In addition, there is no need for a complicated structure as in the conventional case using a heater, and no need for expensive materials as in the case of using a corrosive heat transfer medium such as calcium chloride. Therefore, the humidification ability can be improved at a low cost with a simple structure. The same operation and effect can be obtained even when the humidifier according to the present invention is used for a total heat exchange ventilator. In addition, various design changes can be made without changing the gist of the present invention.

[0012]

According to the humidifier of the first aspect, the temperature of the humidifying water can be increased by utilizing the waste heat of the exhaust gas, whereby the amount of humidification to the supply air can be increased. . Moreover, the humidifying ability can be improved at a low cost with a simple structure without using a heater or the like.

[Brief description of the drawings]

FIG. 1 is a partially broken schematic perspective view of a humidifier according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Humidifier main body 1a, 1b End surface 2 1st pipe 3 2nd pipe W Water P Air supply path Q Exhaust path

Claims (1)

(57) [Claims] A humidifier disposed in a ventilation path including an air supply path (P) and an exhaust path (Q), wherein the container-shaped humidifier body (1) stores humidification water (W). )
Steam which is housed in the humidifier body (1) and whose both ends penetrate through a pair of opposed end faces (1a, 1b) of the humidifier body (1) and are opened to the air supply path (P). A large number of first pipes (2) made of a permeable material, housed in a humidifier body (1), both ends of which penetrate through the pair of end faces (1a, 1b) and open to an exhaust path (Q). A second tube (3) made of a heat conductive material.