JPH062033U - humidifier - Google Patents

Abstract

(57) [Summary] [Purpose] A humidifier having a steam generating element supplied with water from a water supply does not require a large tank for adjusting water pressure. [Structure] A valve unit 6 is connected between a water supply pipe and a steam generating element to operate the valve unit 6. The valve unit 6 has an opening / closing valve 1 for opening and closing the water channel 11.
0, a pressure reducing valve 15 for adjusting the water pressure to a constant value, and a safety relief valve 19 for urgently discharging the water in the valve unit 6 when the water pressure rises abnormally.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a humidifier used as a kind of air conditioning equipment.

[0002]

[Prior art]

Conventionally, as shown in FIG. 3, a humidifier having a steam generating element 1 to which water is supplied from a water supply is known. The water vapor generating element 1 is composed of a moisture permeable membrane, and while supplying water to the water vapor generating element 1, air is blown from the fan 2 to disperse the water vapor into the atmosphere. On the other hand, it is necessary to constantly supply water to the steam generating element 1 at a constant water pressure in order to supplement the water that evaporates. The water pressure of the water supply is usually 0.5 to 7.5 kgf / cm ² , which varies greatly depending on the region or time of use, and when the water pressure is high, the pressure limit of the steam generating element 1 may be exceeded. . Therefore, in the prior art, the tank 3 is installed, the liquid level maintaining device 4 is provided, and water is supplied to the steam generating element 1 at a constant water pressure by utilizing the water head pressure.

[0003]

[Problems to be solved by the device]

However, according to this method, for example, 0.03 kgf / cm to about 0.3m in free fall in order to obtain a pressure of ^2, also a necessary drop of about 1 m in order to obtain a pressure of 0.1 kgf / cm ² Since a large tank 3 is required, there is a problem that the entire humidifier is large.

[0004]

[Means for Solving the Problems]

 In view of the above points, the present invention has been devised to solve the problems found in the above-mentioned prior art, and in order to achieve this object, a humidifying device having a steam generating element to which water is supplied from water supply. A humidifier characterized by having a valve unit connected between the water supply pipe and the steam generation element, wherein the valve unit is provided with an opening / closing valve, a pressure reducing valve and a safety relief valve. provide.

[0005]

[Action]

 The humidifier of the present invention does not store the water supplied to the steam generating element in the tank, but operates a valve unit by connecting a valve unit between the water supply pipe and the steam generating element. The valve unit is equipped with an on-off valve that opens and closes the water channel, a pressure reducing valve that adjusts the water pressure to a constant level, and a safety relief valve that urgently discharges the water in the valve unit when the water pressure rises abnormally.

[0006]

【Example】

 Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the humidifier has a valve unit 6 connected between the water supply pipe 5 and the steam generating element 1, that is, the water inlet 7 of the valve unit 6 has a water supply pipe. 5 is connected, and the water vapor generating element 1 is connected to the water outlet 8 of the valve unit 6 via the pipe 9 or directly.

As shown in FIG. 2, the valve unit 6 includes an opening / closing valve 10, a pressure reducing valve 15, and a safety relief valve 19. The on-off valve 10 opens and closes the water passage 11 to turn ON / OFF the water supply to the water vapor generating element 1 and has an electromagnetic valve structure, that is, the plunger 12 is urged by the spring 13 and pressed against the valve seat 14. The water channel 11 is closed when power is not supplied, and the water channel 11 is opened when power is supplied. The pressure reducing valve 15 is located on the downstream side of the opening / closing valve 10 and regulates the pressure of water flowing from the opening / closing valve 10 to a constant value. The structure is a diaphragm valve. That is, the axially movable valve body 16 is connected to the diaphragm 17, and the diaphragm 17 receives water pressure from one side and is biased by the spring 18 from the other side, and stops at a position where this water pressure and spring load are balanced. By adjusting the water pressure constant. The safety relief valve 19 is for urgently discharging the water in the valve unit 6 when the water pressure in the valve unit 6 becomes abnormally high for some reason, and has a diaphragm valve structure like the pressure reducing valve 15. That is, the valve body 21 connected to the diaphragm 20 that receives water pressure is pressed against the valve seat 23 by the spring 22, and is closed when the water pressure is below a predetermined value, and opens when the water pressure exceeds a predetermined value. Valve to drain water from drain 24. The water passage from the pressure reducing valve 15 to the safety relief valve 19 and the water passage from the pressure reducing valve 15 to the water outlet 8 are bifurcated.

In the humidifier, the water supplied from the water supply pipe 5 to the valve unit 6 is automatically adjusted by the pressure reducing valve 15 so that the water pressure becomes constant when the open / close valve 10 is opened. It is regulated and supplied to the steam generating element 1 at a constant secondary water pressure regardless of whether the primary water pressure is high or low. The operation of the valve unit 6 will be described in detail below. The water flowing in from the water inlet 7 reaches the on-off valve 10, the plunger 12 moves leftward in the figure when energized to open the water passage 11, and water is supplied to the pressure reducing valve 15. The spring 18 of the pressure reducing valve 15 is adapted to urge the diaphragm 17 with a load corresponding to a preset secondary water pressure (for example, 0.03 kgf / cm ² ). When the secondary water pressure falls below the set value, the valve body 16 moves in the vertical direction in the figure due to the load of the spring 18, so that the supply of water is promoted and the secondary water pressure is increased. On the other hand, if the secondary water pressure becomes higher than the set value, the diaphragm 17 moves upward in the figure due to the secondary water pressure, so that the valve body 16 moves upward in the figure to reduce the water supply. In this way, water can always be supplied to the steam generating element 1 at a constant secondary water pressure regardless of the level of the primary water supply pressure. If the secondary water pressure rises abnormally due to a failure of the pressure reducing valve 15 or the like, the diaphragm 20 of the safety relief valve 19 moves against the bias of the spring 22 so that water is drained from the drain port 24. Discharge. Therefore, it is possible to prevent excessive pressure from being applied to the steam generating element 1. When it is desired to stop the humidifier, the power supply to the on-off valve 10 is stopped, the plunger 12 is returned, and the water channel 11 is closed.

[0010]

[Effect of device]

 The present invention has the following effects. That is, a valve unit provided with an on-off valve, a pressure reducing valve and a safety relief valve was connected between the water supply pipe and the steam generating element, and the tank whose size was a problem in the conventional technology was omitted. It is possible to provide a compact humidifier.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a piping structure of a humidifier according to an embodiment of the present invention.

FIG. 2 is a sectional view of a valve unit.

FIG. 3 is an explanatory view showing a piping structure of a humidifier according to a conventional example.

[Explanation of symbols]

 1 Water vapor generating element 2 Fan 3 Tank 4 Liquid level maintenance device 5, 9 Piping 6 Valve unit 7 Water inlet 8 Water outlet 10 Open / close valve 11 Water channel 12 Plunger 13, 18, 22 Spring 14, 23 Valve seat 15 Pressure reducing valve 16, 21 Valve body 17,20 Diaphragm 19 Safety relief valve 24 Drainage port

Claims (1)

[Scope of utility model registration request] 1. A humidifier having a water vapor generating element (1) supplied with water from water supply, wherein a valve unit (6) connected between the water supply pipe (5) and the water vapor generating element (1). A humidifier characterized by including an opening / closing valve (10), a pressure reducing valve (15) and a safety relief valve (19) in the valve unit (6).