JPS6227802Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a hot water device used as a heating device, etc., and particularly relates to an improvement of the water flow switch section of the hot water device.

In a conventional hot water device, a water flow switch section was constructed as shown in FIG. That is,
A running water switch 4 is attached to the bottom wall 3 near the water inlet 2 of the water storage tank 1, and a disc 6 is attached to the top surface of the float 5 of the running water switch 4, so that water flowing from the water inlet 2 flows through the disc 6. The structure was such that when the float 5 collides with the object, the float 5 rises and the switch is turned on.

However, in this case, since the water inlet section 2 is inevitably located at an eccentric position with respect to the disc 6, the force applied to the disc 6 is unbalanced and vertical movement is not smooth, resulting in unstable operation. It was hot.

This invention provides a hot water device having a water flow switch part that improves the above-mentioned drawbacks, namely, the internal space near the water inlet of the water tank is partitioned by a partition plate to include the water inlet. An outflow hole is provided in the upper side of the plate at a position offset from the water inlet, and a float is positioned in the outflow hole so that it is raised by the flow flowing out from the outflow hole, and the float is moved up and down. To provide a hot water device which is equipped with a running water switch which is opened and closed by the running water switch and can control a water heating means etc. by the running water switch.

This invention will be explained in detail below based on the embodiment shown in the drawings. Note that this invention is not limited to this.

Reference numeral 10 shown in FIG. 2 is an embodiment of the hot water device of this invention. The inside of the water tank 11 is partitioned by an air separator lid 19, and a water inlet portion 12 and a water outlet portion 21 are opened into the internal space partitioned by the air separator lid 19. And water inlet part 1
The internal space near 2 is partitioned by a partition plate 17. As shown in more detail in FIG. 3, the internal space defined by the partition plate 17 includes the water inlet section 12 and does not include the water outlet section 21. and,
Since the circular outflow hole 18 is formed in the upper partition plate 17 at a position offset from the water inlet section 12, water flows upward through the outflow hole 18.

As shown in more detail in FIG.
is box-shaped, and has a water switch mounting hole 20 concentric with the outflow hole 18 at its bottom, so insert the mounting shaft 22 of the water switch 14 through the gasket 16, and then insert the mounting shaft 22 into the gasket 23. If it is inserted into the fixing hole 24 of the bottom wall 13 of the water storage tank 11 through the fixing hole 24 of the bottom wall 13 of the water storage tank 11 and tightened with the nut 25 from the bottom side of the bottom wall 13, the partition plate 17 and the water switch 14 will be tightened together, and the bottom wall 13 will be tightened. is fixed integrally with the Then, the vertical sliding shaft 26 of the float 15 and the outflow hole 18 are naturally aligned, and the float 15 is positioned in the outflow hole 18 portion.

Therefore, the water that enters the internal space partitioned by the partition plate 17 from the water inlet portion 12 through the inflow hole 27 flows out upward through the outflow hole 18 around the float 15 in a well-balanced manner, allowing the float 15 to flow extremely smoothly. raise. When the float 15 rises, the magnet 28
activates the reed switch 29.

Referring again to FIG. 2 together with FIG. 5, the operation of this water hot water device 10 will be described.

When the water tank 11 is filled with water, the water level switch 30 is turned on.
If it is on, the pump 31 is operated to circulate water, and water flows into the water tank 11 from the water inlet 12. The water flow switch 14 is then activated as previously described. When the water flow switch 14 is activated, the combustion controller 37 including the thermosensor 36 is activated, and when the water temperature is lower than the set temperature, the electromagnetic on-off valve 33 is opened to supply gas to the gas burner 34.
At the same time, the igniter 38 is activated to ignite the gas. There, the gas is burned in the gas burner 34,
The water circulating in the heat exchanger 35 is heated. The controller 37 opens and closes the electromagnetic on-off valve 33 according to the signal from the thermosensor 36 so that the hot water temperature reaches the set temperature. When the pump 31 is stopped and water circulation stops, the water flow switch 14 detects this and the electromagnetic on-off valve 33 is closed.

FIGS. 6 and 7 show the water flow switch portion of another embodiment of the hot water device in which the mounting structure of the partition plate is different. The one shown in FIG. 6 has a partition plate 47 fixed to it by screwing it to the air separator lid 49 via a bracket 46, and the one shown in FIG. A partition plate 57 is fixed to the partition plate 56 by screws.

Since the hot water device of this invention is constructed as described above, the water flow switch can move up and down extremely smoothly, and its operation is stable and reliable. Therefore, it has the effect of preventing the danger of water not being heated even though it is circulating, or of water being heated even though water circulation has stopped, and in particular can prevent the latter danger. In this respect, this idea is of great significance.

[Brief explanation of the drawing]

Fig. 1 is an explanatory longitudinal cross-sectional view of the water switch section of a conventional water heating device, Fig. 2 is an explanatory diagram of the configuration of an embodiment of the hot water device of this invention, and Fig. 3 is an explanatory longitudinal cross-sectional view of the water switch section of the same device. Figure 4 is an enlarged longitudinal cross-sectional explanatory view showing the water flow switch part in more detail, Figure 5
The figure is a circuit diagram showing an example of the configuration of the control circuit of the hot water device shown in FIG. 2, and FIGS. 6 and 7 are vertical cross-sectional explanatory views showing other embodiments of the water flow switch section of the hot water device of this invention. It is. 10... hot water device, 11... water tank, 12...
Water inlet section, 13... bottom wall, 14... running water switch, 15... float, 17... partition plate, 18...
...Outflow hole, 19...Air separator lid, 26...
Vertical sliding shaft, 32...control circuit, 33...electromagnetic on-off valve, 34...gas burner, 35...heat exchanger.

Claims (1)

[Claims for Utility Model Registration] 1. The internal space near the water inlet of the water tank is divided by a partition plate so as to include the water inlet, and an outflow hole is located on the upper side of the partition plate at a position offset from the water inlet. A float is placed in the outflow hole so that it is raised by the flow flowing out from the outflow hole, and a water switch that is opened and closed by the vertical movement of the float is installed, and the water is heated by the water flow switch. A hot water device characterized in that the means etc. are controllable. 2. The hot water device according to claim 1, wherein the water heating means is a gas burner to which gas is supplied via an electromagnetic on-off valve, and the opening and closing of the electromagnetic on-off valve is controlled by a water flow switch. 3. Claim 1, wherein the vertical sliding shaft of the float of the water switch and the outflow hole are coaxially aligned.
The hot water device according to item 1 or 2. 4. The hot water according to any one of claims 1 to 3, wherein the water switch and the partition plate are fastened together so that the vertical sliding axis of the float of the water switch and the outflow hole are aligned. Device.