JPS6317958Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a cistern built into a heat source device such as a hot water heating device or a hot water heater with a reheating function.

[Conventional technology]

A cistern used in a hot water heating device or a hot water heater with a reheating function is generally built into a heat source device 1, as shown in FIG. That is, in FIG. 1, 1 indicates a heat source device, inside which there are a cistern 2, a system circulation outgoing pipe 3, a system circulation return pipe 4, a circulation pump 5, a heat exchanger 6, a gas burner 7, and a gas solenoid valve. 8, a control unit 10 and the like are built in, and the cistern 2 is provided with a water level switch 9. Further, the vessel circulation outgoing pipe 3 is connected to, for example, a heating outgoing pipe 14 and a hot water supply outgoing pipe 17 via an outgoing pipe header 12, and the vessel body return pipe 4 is connected to a heating return pipe 15 and a hot water supply outgoing pipe 17 via a return pipe header 13, for example. It is connected to the hot water supply return pipe 18. 16 is a heating radiator,
19 is a bath heater.

As described above, in this type of cistern 2, the body circulation outgoing pipe 3 and the body circulation return pipe 4 are directly connected to the bottom surface, and when the circulation pump 5 is operated to flow circulating water, the inside of the cistern 2 is Oxygen in the air dissolves into the circulating water as the water surface shakes, and concentration batteries occur due to changes in the flow rate distribution of the circulating water in the circulating pipes, and piping members undergo a dezincing phenomenon due to the temperature of the hot water. known to occur.

Therefore, as a means to prevent this dezincing phenomenon, in order to minimize the wave motion of the water surface in the cistern and the amount of dissolved oxygen as much as possible,
A cistern with an air separator as shown in Figure 2 A and B is used.

That is, Fig. 2A shows the air separator 20 attached to the lower part of the cistern 2 via the conduit 2a, and Fig. 2B shows the air separator 20 connected to the bottom of the cistern, and 20 and the cistern 2 are communicated with each other through an opening 20a formed in the bottom of the case.

[Problem that the invention attempts to solve]

However, in the conventional example shown in Fig. 2 A and B, the air separator 20 is built into the lower part of the cistern, which requires a large installation space, which poses an obstacle to downsizing the entire heat source device. .

The present invention aims to improve the problems of the prior art as described above, and to provide a small cistern that does not incorporate an air separator and can further reduce the amount of dissolved oxygen as much as possible.

[Means for solving problems]

In order to achieve the above-mentioned purpose, this invention
In a cistern in which an outgoing pipe connection port and a return pipe connection port are provided on the bottom surface of the casing and a water level switch is disposed in the casing, an upper partition plate having an opening in at least a part of the top of the casing is provided. and a lower partition having an opening at a position below the off point of the water level switch and at a position that does not overlap with any of the outgoing pipe connection port and return pipe connection port and the opening provided in the upper partition plate. A plate is disposed, and the water level switch is disposed so as to look into the opening of the lower partition plate.

[Effect]

As mentioned above, the present invention suppresses the fluctuation of the water surface inside the cistern by using the upper and lower partition plates arranged inside the casing, so it is possible to reduce the amount of dissolved oxygen. In particular, since the lower partition plate is located below the off point of the water level switch, the lower partition plate is located below the liquid level in any case, and the water level switch is located below the off point of the water level switch. Since it is arranged so as to look into the opening, even at the lowest water level, the lower partition plate and the water level switch can minimize the fluctuation of the water surface and reduce the amount of dissolved oxygen.

〔Example〕

An example of implementing the present invention will be described below with reference to FIG.

In Fig. 3, reference numeral 21 indicates the case of the cistern of the present invention. An upper partition plate 24 and a lower partition plate 26 are disposed within the body with an appropriate interval maintained, and the upper partition plate 24 is provided with an opening 25 on at least one of the left and right sides, and the lower partition plate 26 is provided with an opening 27 approximately in the center thereof, and a water level switch 9 is arranged so as to look into the opening 27, and the lower partition plate 26 is located below the off point of the water level switch 9. so that the lower partition plate 26 is located below the water surface 29 in any case. Note that 28 indicates a lid plate.

Note that in the embodiment shown in FIG. 3, the upper partition plate 24
Although an example has been shown in which the opening 25 is provided at a lateral position and the opening 27 is provided approximately in the center of the lower partition plate 26, the present invention is not limited to such an embodiment.

[Effect of idea]

Since the cistern of the present invention has the above-mentioned configuration, the fluctuation of the water surface is suppressed by the upper partition plate 24 and the lower partition plate 26 arranged inside the cistern case, so it is larger than the conventional one with an air separator. In particular, in the present invention, the lower partition plate is located below the off point of the water level switch, and the water level switch is located in the opening of the lower partition plate. Since it is arranged so as to look into the water, even at the lowest water level, the lower partition plate and the water level switch can minimize the fluctuation of the water surface and reduce the amount of dissolved oxygen.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a hot water heating system, and FIGS. 2A and 2B are cross-sectional views of a conventional cistern with an air separator. FIG. 3 is a sectional view showing an example of the implementation of the cistern of the present invention. 2... Cistern, 21... Case, 22... Outgoing pipe connection port, 23... Return pipe connection port, 24... Upper partition plate, 25... Opening, 26... Lower partition plate,
27...Opening, 9...Water level switch, 29...
water surface.

Claims (1)

[Scope of utility model registration request] In a cistern in which an outgoing pipe connection port and a return pipe connection port are provided on the bottom surface of the case and a water level switch is arranged in the case, an upper partition plate having an opening in at least a part is disposed in the upper part of the case. and a lower partition plate having an opening at a position below the off point of the water level switch and not overlapping with any of the outgoing pipe connection port and return pipe connection port and the opening provided in the upper partition plate. arranged,
The cistern is characterized in that the water level switch is arranged so as to look into the opening of the lower partition plate.