JPS6023751A - water controller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a water body having a ball directly above a hot water temperature control knob, in which water flows from a bypass passage, the ball floats up, and even when it hits the wall of the bypass passage, a sound is produced. It concerns the structure of a water body that has been modified in many ways.

Recently, there has been an increase in the number of water heaters that are installed outdoors due to safety and installation space concerns, but if they are outdoor type, there is a risk that the equipment may be damaged by freezing in cold weather.
A low-temperature operating valve 2 is attached to the hot water outlet side of the water heater, and when the outside air drops below freezing, water escapes from the low-temperature operating valve 2 to prevent the equipment from freezing.

In addition, when the temperature control knob of the water body 1 is opened and the bypass passage 4 is opened, when the outside temperature is below freezing and the low temperature operation valve 2 is activated to drain water, the water flows to the bypass passage 4 side. , does not flow to the heat exchanger 5 side, and therefore the heat exchanger 5
In order to prevent water from freezing and breaking, a ball 6 is provided on the water body 1 just above the hot water temperature control knob 3 to prevent water from flowing into the bypass passage 4 when the low temperature operation valve 2 is operating. was.

However, in the above structure, when using a normal water heater, the ball 6 floats due to the differential pressure when the amount of water is within the operating range of the water-containing body 1.
However, as water flows through the bypass passage 4, the ball 6 hits the wall of the bypass passage 4, causing abnormal noise due to metal-to-metal contact.

The present invention eliminates the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to the accompanying drawings.

, θ In FIG. 4, a rubber or resin cushioning material 9 is coated around the metal ball 6, and the other configurations are the same as the conventional example as shown in FIG. 2.0 In the above structure, the water body When the outside temperature drops below freezing while the hot water temperature control knob 3 of No. 1 is left open, the low-temperature operation valve 2 operates and water drains, but the amount of water is small and the ball 6
Since the specific gravity of the ball 6 is large, the ball 6 is accommodated in the valve seat part 7.

Therefore, all the water that has passed through the water body 1 will flow through the heat exchanger 5, so that the heat exchanger 5 will not freeze and be destroyed even if the temperature drops below freezing.

Next, when using a normal water heater, since the amount of water flowing through the water body 1 increases, a pressure difference is generated between the part where the water enters the water body 1 from the heat exchanger 5 and the bypass passage part 4, and the ball 6 When the ball 6 separates from the valve seat 7 and floats up, the ball 6 hits the wall of the bypass passage 4. However, since the ball 6 is coated with a cushioning material 9, abnormal noise caused by contact between the ball 6 and the metal is prevented. The outbreak will stop.

As described above, according to the present invention, the following effects can be obtained.

1) When the outside temperature drops below freezing and the low-temperature operation valve 2 operates with the hot water temperature control knob 3 of the water body 1 open, all the water flows through the heat exchanger 5, so the heat exchanger 6 freezes. It will not be destroyed.

2) When using the water heater with the hot water temperature control knob 3 open, the ball 6 comes into contact with the wall surface of the bypass passage 4, but since the ball 6 is coated with a cushioning material 9, abnormal noises will not occur. 0 will no longer occur.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a water passage section of a water heater using a water body of a bypass mixing type, and FIG. 2 is an enlarged sectional view of a bypass mixing section of a water controller in an embodiment of the present invention.
FIG. 3 is a sectional view showing a state in which the ball floats up and comes into contact with the bypass passage when the water heater is normally used, and FIG. 4 is an enlarged sectional view of the bypass mixing section. 1...Water pod, 2...Low temperature operation valve,
3...Hot water temperature adjustment knob, 4...Bypass passage, 6...Heat exchanger, 6...Ball, 7.Mountain...Pen seat, 8・・・・・・Sufring, 9・
...Buffer material. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 4 Figure 3 Figure 4

Claims (2)

[Claims] (1) A heat exchanger equipped with a metal ball coated with a cushioning material on the hot water temperature control knob of the water body, and a valve seat part to receive this metal ball, and to prevent the ball from jumping out of the water body. A water controller that has a spring with the same diameter as this ball diameter at the entrance to the water body. (2) The inside of the ball is made of a metal with a high specific gravity, and the ball is coated with a cushioning material such as rubber or resin. 2. The water controller according to claim 1, wherein the inox passage is closed, and the ball is floated by differential pressure in the water pen in the operating range of the water pod, and the binos passage is opened.