JPS6287744A - Feed water tank - Google Patents

Abstract

PURPOSE:To obtain an apparatus having an increased capacity of overflowing without increasing the size of a feed water tank, with separating a water chamber from an overflow water chamber by an overflow water weir, increasing the total length of said weir by forming the cross section of said weir into a zigzag-shape. CONSTITUTION:An overflow water chamber 22 is separated from a water chamber 24 by an overflow water weir 21 having a cross section formed into a zigzag-like shape and has an overflow water port 23 at the bottom thereof. When an electromagnetic valve is caused to be opened continuously due to the trouble of said valve or a float switch 5, water level rises with the result that the water overflows the overflow weir 21 and flows into the overflow water chamber 22 to be discharged from the overflow water port 23 to a drain pan etc. through an overflow pipe. The capacity of overflowing is directly proportional to the total length of the overflow water weir 21. The overflow water weir 21 having a zigzag-shape can provide a longer total length; as a result, the capacity of overflowing can be increased without increasing the volume of a feed water tank.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to an overflow structure for a water supply tank that supplies water to a humidifier or the like.

[Conventional technology]

Figure 3 is a configuration diagram of a conventional water supply tank used to supply water to a humidifier. (1) I water supply tank, (2) a water supply pipe, and (3) a solenoid valve connected to this water supply pipe. , (4) is the water inlet that connects the water supply pipe (2) to the water tank (1), (5
) is a float switch that turns on and off the solenoid valve (3), (6) is a water pipe that supplies water (8) to the humidifier (7), and (9) is a water pipe that connects to the water tank. The connected water supply port 00) is an overflow pipe, and (II) is an overflow port. (
12) is a cylindrical layer. Also, the configuration of the humidifier (7) is shown in Figure 5~
It is shown in FIG. In these figures, (+3) is a hollow porous member formed into a rectangular shape by overlapping porous materials (14) and gluing or heat-sealing the ends, and both ends (13a) are hollow. Water supply port (1
5) A drain port (1c) is provided. (17) forms a ventilation passage with a wavy spacer wound around the hollow porous member (+3). (+a) l is a central core member with a rectangular parallelepiped shape, and a hollow porous member (+3
) and the wavy spacer (17) are wound around the core member (+8), thereby increasing the force U ff (
71.

Next, the operation will be explained. A conventional water tank used in a humidifier, etc. is constructed as described above, and humidified filtered water (8) is sent from the water inlet (9) through the water pipe (6) to the humidifier (
7), the water level in the water tank (1) decreases and the water level in the water tank (1) decreases.
When the temperature reaches the bottom, the float switch (5) is activated, the solenoid valve (3) is turned on, and water (8) is supplied into the water tank (1). 8) is supplied into the water supply tank (1) and when the water level becomes higher than B, the float switch (5) is activated again and turns off the solenoid valve (3). By repeating this operation, you can always use the humidifier (7
) can be supplied with water (8) at low water pressure.

In addition, if the solenoid valve (3) or the float switch t51 fails, the water level will rise and the cylinder (121) will be flooded and the seawater pipe (11) will be flooded.
more drained.

[Problem that the invention seeks to solve]

In the conventional water tank as described above, due to a failure of the solenoid valve (3) or the 70-to switch (5), the solenoid valve (3)
When is a continuous amount, the overflow 2 that can overflow from the cylindrical layer (I2), ie overflow capacity Q0, is as follows: where h is the height of the outer wall of the water tank (1) and h2 is the height of the cylindrical layer (12). When each height difference (h, + h2) is △h1 and the station of the cylindrical layer 2) is bl, if the water supply amount Q from the water supply port (4) is constant, then Ql≦Q.
, otherwise water will come out from the water tank (1). Therefore, ■-, overflow capacity Q. However, in the case of a conventional cylinder @ (+2), the circumference is limited by the internal dimensions of the water tank (1), and the shape factor μ of the weir is also limited by the overflow in the case of a cylinder. Since the water flow is condensed toward the center, it becomes much smaller than in a straight layer. Therefore, the overflow capacity Q. In order to increase the height difference △b, it is necessary to increase the height difference △b, but to increase △h
) must be increased, which leads to an increase in the size of the water tank (1).

This invention was made to solve the above-mentioned problems, and its purpose is to provide a device that can increase the overflow capacity Q0 without increasing the size of the water supply tank (1).

[Means for solving problems]

The water supply tank according to the present invention has a water storage chamber provided with a water supply port and a water supply port, and an overflow chamber provided with an overflow port, which are divided by an overflow weir, and the cross-sectional shape of the overflow weir is formed in a zigzag shape. By increasing the total length of the weir, the second objective was achieved.

[For production]

In the water supply tank of the present invention, by forming the cross-sectional shape of the overflow weir in a zigzag shape, the total length of the weir is increased, and the amount of overflow at the same water level difference is increased.In other words, the size of the water supply tank is increased. Make it smaller.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure and FIG. 2, (9) is a zigzag-shaped overflow weir (22) with a zigzag cross-sectional shape, which is a flood chamber divided by the zigzag-shaped overflow weir (2);
is the overflow port drilled at the bottom of the overflow chamber.

In the water tank configured as described above, due to a failure of the solenoid valve (3) or the float switch (5), the solenoid valve (3) becomes continuous and the water level rises, causing the above-mentioned zig-sag shape. Overflowing Jll? 8, the water overflows and is discharged from the overflow chamber (flowing into the 2 wharf and overflow port) to a drain pan, etc. via the overflow pipe 00). This overflow capacity Qol, as in the case of the cylindrical layer, is determined by Q, = -μ-b△hvrT1 ball T []], but in this case b +, i' indicates the total length of the zigzag overflow weir. , and the shape factor μ of the weir has a much larger value than μ in the case of a cylindrical layer.

(However, assuming that the cross-sectional shapes of both weirs are the same) Therefore, in the zigzag-shaped overflow weir, the total length b can be increased, so the overflow capacity Q0 is significantly improved compared to the cylindrical layer. Moreover, when the minimum value of the outer wall height of the water supply tank and the height Δ11 of the weir is determined from the maximum water supply amount QM, the following equation is obtained.

That is, the height difference Δh in the actual machine needs to be larger than the value determined by the above equation [2].

That is, In reality, if we consider the mounting accuracy (tilt) of the water tank (1) and the ripples on the water surface due to water supply,
By multiplying the formula (3) by the safety factor and obtaining the following formula, water can be reliably drained from the outer wall of the water tank (1) to the drain pan via the overflow pipe α0) without overflowing.

〔Effect of the invention〕

As described above, according to the present invention, by dividing the inside of the water supply tank with an overflow weir having a zigzag cross-sectional shape and providing an overflow chamber, the water supply tank can be made smaller and its reliability against overflows can be improved. I was able to get a high water tank.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a water tank showing an embodiment of the present invention, FIG. 2 is a plan view of the water tank shown in FIG. 1, and FIGS. Figure 5 is a configuration diagram of a humidifier using a hollow porous member, Figure 6 is a developed view of the hollow porous member shown in Figure 5, and Figure 7 is a diagram of a humidifier using a hollow porous member.
It is a cross-sectional view of the cross section at −■ as seen in the direction of the arrow. In the figure, (4) is the water inlet, (9) is the water inlet, (24)
is the water storage chamber, (23) j is the overflow port, (2 is the overflow chamber, (
1) is the water supply tank, and (11) is the overflow weir. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Masuo Oiwa Figure 2':F:lK? 7fm

Claims (1)

[Claims] In a water supply tank having a water storage chamber provided with a water supply port and a water supply port, and an overflow chamber provided with a water overflow port, the water storage chamber and the overflow chamber are partitioned, and water overflows from the water storage chamber into the overflow chamber. A water supply tank characterized by a weir having a zigzag cross-sectional shape.