JPH1082538A - Natural vaporization type humidifier attached to air-conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a natural vaporization type humidifier equipped with an air-conditioner without using any electric part by providing a water feed valve to open through operation of a thermally-actuating device when the temperature of heated air exceeds a prescribed value and close when it is below the prescribed value. SOLUTION: A water feed valve 23 is opened through operation of a thermally-actuating device 22 when the temperature of air flowing through a heat-exchanger 4 is increased to a prescribed value and closed when it is below the given value. When a wax thermo is used as the thermally-actuating device 22, the wax thermo is expanded and a spindle 22-1 is advanced. When the temperature of air flowing through the heat-exchanger 4 is increased to a prescribed value, an valve element 28 is pressed down against urging of a spring 29 and the water feed valve 23 is opened. When the wax thermo is contracted and the spindle 22-1 is moved backward, the water feed valve 23 is closed through urging of the spring 29. This constitution eliminates a fear of leak occurring and dissolves a problem on malfunction due to the error of wiring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier which is mounted on an air conditioner, and when the air conditioner performs heating, the humidifying element moistened with humidifying water is blown against heated air passing through a heat exchanger of the air conditioner. The present invention relates to a natural evaporative humidifier that humidifies heated air by evaporating water.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show an example of a general arrangement of a natural evaporative humidifier mounted on an air conditioner. The air conditioner of FIG. 5 includes an annular heat exchanger, and an evaporative humidifier is disposed at one or more locations corresponding to the downstream front air outlet of the heat exchanger, and the air conditioner of FIG. And a spontaneous evaporation humidifier is disposed downstream and forward of the heat exchanger. 5 and 6, reference numeral 1 denotes an air conditioner housing, 2
Is the indoor air inlet, 3 is the air-conditioned air outlet,
4 is a heat exchanger, 5 is a blower, 6 is a humidifying element of a natural evaporative humidifier, 7 is a humidifying water supply pipe, 8 is a control box for interrupting conduction of the humidifying water supply pipe, 9 is a water stop valve, 10 Is a drain pan of condensed water generated in the heat exchanger 4 when the air conditioner is performing cooling, 11 is a drain pan of a natural evaporative humidifier that receives excess humidified water supplied to the humidifying element 6, 12 Is an air cleaner, 13 is an arrow indicating the flow of air before being heated, 14 is an arrow indicating the flow of heated air, 15
Is an arrow indicating the water supply direction. In FIG. 6, the control box 8, the water stop valve 9, and the arrow 15 indicating the water supply direction are not shown.

Conventionally, an electromagnetic valve is disposed in the humidifying water supply pipe 7, and the opening and closing of the electromagnetic valve is controlled by an output signal of a control circuit for inputting a heating signal of an air conditioner. . That is, in FIG.
Through a control circuit 19 for inputting a heating signal 18 of the air conditioner. Reference numeral 20 denotes a pressure reducing valve for reducing the pressure of tap water and supplying it to the electromagnetic valve 16. The solenoid valve 16, timer 17, control circuit 19, pressure reducing valve 20 are housed in the control box 8.
The other reference numerals in FIG. 7 indicate the same parts as those in FIG. 7, the right side of the chain line 21 shows the inside of the air conditioner housing 1, and the left side shows the outside of the air conditioner housing 1.

[0004] The above-described configuration in which the continuity of the humidified water supply pipe 7 is electrically controlled by the electromagnetic valve 16 has the following problems.

The solenoid valve 16 or the control circuit 19 may be exposed to a high-humidity atmosphere depending on the conditions of attachment to the air conditioner, and may cause a short circuit if moisture-proof measures are not sufficient.

[0006] In some cases, the spontaneous evaporation humidifier does not operate normally due to wiring errors.

[0007] The electronic parts such as the control circuit are expensive, and the wiring cost is required, which is disadvantageous in terms of cost.

[0008]

When the air conditioner is heating or cooling, the temperature of the heated or cooled air passing through the heat exchanger 4 is sensed and the humidification water supply pipe 7 is cut off. Accordingly, it is an object of the present invention to obtain a natural evaporative humidifier mounted on an air conditioner without using any electric parts.

[0009]

A humidifying element, which is disposed downstream and forward of a heat exchanger of an air conditioner and in which humidifying water is evaporated by heated air during heating of the air conditioner, and a heat exchanger similar to the heat exchanger. And a humidifying device that is disposed in front of the humidifying element and operates by sensing the temperature of the heated air, and a humidifying water supply pipe 7 that supplies humidifying water to the humidifying element 6. A water supply valve that opens when the air temperature is equal to or higher than a predetermined temperature and closes when the air temperature is equal to or lower than the predetermined temperature constitutes a natural evaporative humidifier.

[0010]

When the air flowing through the heat exchanger 4 rises to a predetermined temperature while the air conditioner is heating, the water supply valve is opened by the operation of the heat responsive device, and the humidifying water is supplied to the humidifying element 6. Then, the humidifying element 6 is moistened, the heated air is blown to evaporate the humidified water, and the heated air is humidified. When the heating stops, the temperature of the air passing through the heat exchanger decreases, and the operation of the heat responsive device closes the water supply valve, thereby stopping the supply of the humidifying water to the humidifying element 6. When the air conditioner is performing cooling, the temperature of the air passing through the heat exchanger 4 is low, so that the operation of the heat responsive device does not open the water supply valve.

[0011]

The natural evaporative humidifier of the present invention with an air conditioner does not use any electrical parts, and has the following effects.

[0012] There is no danger of electrical leakage when used under any conditions.

[0013] The problem of malfunction due to incorrect wiring, such as the water supply valve not opening even when heating is being performed or being opened when heating is not being performed, is eliminated.

Since there are no electric parts and therefore no wiring work, not only is it advantageous in terms of cost, but also it can be mounted on an air conditioner.
Removal from the air conditioner is easy, and a compact natural evaporative humidifier can be obtained.

The power consumption is zero.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view of a natural evaporative humidifier according to one embodiment of the present invention, wherein reference numeral 6 denotes a humidifying element, 7 denotes a humidifying water supply pipe, 9 denotes a water stop valve, and 11 denotes a natural valve. As described above, the drain pan of the evaporative humidifier 20 indicates a pressure reducing valve, and the right side of the chain line 21 in the drawing is the inside of the air conditioner housing 1 and the left side is the outside of the air conditioner housing 1. Is a thermal response device, and 23 is a heat exchanger 4 by the operation of the thermal response device 22.
This is a water supply valve that opens when the air passing through it rises to a predetermined temperature, and closes at a temperature below the predetermined temperature.

FIG. 2 is a view taken in the direction of arrow A in FIG.
Is a heat exchanger, 6 is a humidifying element, 10 is a drain pan of the heat exchanger 4, 11 is a drain pan of a natural evaporative humidifier, 13 is an arrow indicating the flow of air before being heated, 22 is a heat responsive device,
23 is a water supply valve. Both the humidifying element 6 and the heat responsive device 22 are exposed to the heated air at the time of heating the air conditioner.

FIG. 3 is a sectional view of a thermal responsive valve in which the thermal responsive device 22 and the water supply valve 23 are integrally formed. FIG. 3 shows an example in which a wax thermo is used as the thermal responsive device 22. ,
22-1 is a spindle which moves forward and backward as the wax expands and contracts, and 22-2 is a case for accommodating the wax. Numeral 24 denotes a valve housing of a water supply valve 23, and an inlet 25, an outlet 26, and a valve seat 27 of the humidifying water.
Are formed. Numeral 28 is a valve body which is separated from and seated on the valve seat 27 by the advance and retreat of the spindle 22-1, and a first member 28-1 and a second member 28-2 sandwich an annular packing 28-3. And are joined together by caulking. 29 is valve body 28
Is a blind plug of a valve chamber 31 formed in the valve housing 24, and the blind plug 30 forms a seat of the spring 29. . When the wax expands and the spindle 22-1 advances, and the temperature of the air passing through the heat exchanger 4 rises to a predetermined temperature, the valve body 28 is pushed down against the urging of the spring 29 to push down the water supply valve 23. When the wax shrinks and the spindle 22-1 retreats, the spring 29 biases the water supply valve 23 to close.
An arrow 15 indicates a water supply direction.

FIG. 4 is a cross-sectional view showing another embodiment of a thermal responsive valve in which a thermal responsive device 22 and a water supply valve 23 are integrally formed. A bimetal thermo is used instead of a wax thermo. Here is an example. Numeral 32 denotes an inverted bimetal whose bending direction is inverted at a predetermined temperature. Since the internal configuration of the water supply valve 23 is completely the same as that of FIG. 3, the illustration of this part is omitted. When the temperature of the air passing through the heat exchanger 4 is lower than a predetermined temperature, the bimetal 32 curves
22-1 is retracted, the water supply valve 23 is kept closed, the bimetal 32 reverses to a valley shape at a predetermined temperature or higher (the state shown in FIG. 4), and the water supply valve 23 is opened.

[Brief description of the drawings]

FIG. 1 is a front view of a natural evaporative humidifier of the present invention.

FIG. 2 is a view taken in the direction of arrow A in FIG. 1;

FIG. 3 is a cross-sectional view showing an example of a configuration of a thermally responsive valve in which a thermally responsive device and a water supply valve used in a natural evaporative humidifier of the present invention are integrally formed, using a wax thermostat.

FIG. 4 is a cross-sectional view of a configuration example of a thermally responsive valve in which a thermally responsive device and a water supply valve used in a natural evaporative humidifier of the present invention are integrally formed, and a bimetal thermo is used.

FIG. 5 is a diagram showing a general arrangement example of a natural evaporative humidifier attached to a housing of an air conditioner having an annular heat exchanger.

FIG. 6 is a diagram showing a general arrangement example of a natural evaporative humidifier attached to a housing of an air conditioner having a rectangular heat exchanger.

FIG. 7 is a diagram showing a conventional configuration of a natural evaporative humidifier that electrically controls supply of humidifying water during heating of an air conditioner.

[Explanation of symbols]

 Reference Signs List 1 air conditioner housing 4 heat exchanger 6 humidifying element 7 humidifying water supply pipe 9 water stop valve 10 drain pan of air conditioner 11 drain pan of natural evaporative humidifier 13 arrow indicating air flow 20 pressure reducing valve 21 boundary between inside and outside of air conditioner 22 Heat response device 23 Water supply valve 24 Water supply valve housing 25 Humidification water inlet 26 Humidification water outlet 27 Valve seat 28 Valve element 29 Spring 30 Blind plug 31 Valve room 32 Bimetal

Claims (1)

[Claims] 1. A humidifying element (6) disposed downstream of and forward of a heat exchanger (4) of an air conditioner, wherein humidifying water is evaporated by heated air during heating of the air conditioner. 4) A heat responsive device (22) which is disposed in front of the downstream side and operates by sensing the temperature of the heated air, and a humidifying water supply pipe (7) which supplies humidifying water to the humidifying element (6). A water supply valve (23) that opens when the temperature of the heated air is equal to or higher than a predetermined temperature and closes when the temperature of the heated air is equal to or lower than a predetermined temperature due to the operation of the heat responsive device (22); humidifier.