JPS6230674Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a conduit for connecting, for example, a hot water mixing faucet and a water heater provided in the vicinity of a hot water tap with a hot water supply pipe and a water supply pipe.

Conventionally, when a water outlet and/or a shower outlet were installed in a hot water mixer tap installed in a bathroom, the hot water mixer tap and the water heater were connected through a hot water supply pipe, and the water supply pipe was connected to a separate water pipe. are often taken. In this case, although the outer periphery of the hot water supply pipe is usually covered with a heat insulating material, the wasteful dissipation of heat in the pipe cannot be ignored, posing a problem in terms of energy conservation.

This invention was made with the aim of solving this problem, and when the hot water mixer tap and water heater are separated, both the hot water supply pipe and the water supply pipe are taken out from the water heater main body, and these are connected to the pipe line. The system is constructed as a pair of hot water supply pipes and water supply pipes connected to the hot water mixing faucet, and the structure of this pipe line is devised to eliminate heat loss in the pipe line.

Hereinafter, one embodiment will be specifically described based on the drawings.

Figure 1 shows the schematic structure and piping example of a water heater to which pipe line A of this invention can be applied, and 1 shows water heater B.
The outer casing, 2 is a water supply pipe, and the water governor 3 is attached to the water supply pipe 2.
A flow meter/flow switch 4 is interposed.
5 is a heat exchanger, 6 is a hot water outlet pipe, and a temperature sensor 7 such as a thermistor is attached to the hot water outlet pipe 6. A mixing water supply pipe 8 is branched from the upstream side of the flow switch 4 on the downstream side of the water governor 3, and can be taken out of the water heater B from the same part of the outer casing 1 together with the hot water outlet pipe 6. There is. It is convenient if the outlet 9 is formed into a coupler type so that it can be connected to and separated from a hot water supply pipe (hereinafter referred to as a pipe), which will be described later. 10
is the pilot burner, 11 is the main burner, 12
1 is a gas proportional control valve, 13 is a gas control valve, and the gas proportional control valve 12 receives a hot water temperature signal from a temperature sensor 7, and a flow rate signal from a flow meter/flow switch 4.
In response to this, the gas amount is controlled in proportion to the water supply amount via the control unit 14, and the gas amount is controlled to increase or decrease according to the hot water temperature, so that the hot water temperature always reaches the set value. Further, the gas control valve 13 is controlled to be supplied or disconnected by a flow meter/flow switch 4 depending on the presence or absence of water flow.

Pipe A consists of a hot water supply pipe 15 and a water supply pipe 16,
These are connected to the hot water outlet pipe 6 and the mixing water supply pipe 8 at the outlet 9 of the water heater B, respectively. V is a hot water mixer tap, 17 is a hot water tap, and 18 is a shower. The hot water mixer faucet V is designed to provide hot water or a shower at a desired temperature by appropriately rotating the hot water knob 19 and the water knob 20. FIG. 2 is a cutaway perspective view of only the main part of the pipe A, and FIG. 3 is a perspective view showing an example of a good thermal conductor.
22 is a good thermal conductor that covers the outer periphery of the hot water supply pipe 15 and the water supply pipe 16 covered with the heat insulating material 21. For example, as shown in FIG. When configured by winding it into a shape,
Flexibility can be imparted to the entire conduit. 23
is a heat insulating material coated on the outer periphery of the heat conductor 22.

In the above configuration, since the hot water supply pipe 15 is itself covered with the heat insulating material 21, this and the water supply pipe 16
Even if the hot water is tied together, the heat of the hot water flowing through the hot water supply pipe 15 will not be taken away by the cold water inside the water supply pipe 16, and even if the heat dissipates from the hot water supply pipe 15 through the heat insulating material 21. Even if there is heat, it is efficiently transmitted to the water supply pipe 16 via the heat conductor 22 on the outer surface, and the water flowing through the water supply pipe 16 is preheated with that heat, so the heat loss in the pipe A is theoretically zero. Become. Furthermore, the heat insulating material 23 covering the outer surface of the heat conductor 22 enhances the effect of preventing heat release.

As explained above, this idea has a simple structure in which a water supply pipe is paired with a hot water supply pipe covered with a heat insulating material, covered with a good thermal conductor, and the outer periphery is further coated with a heat insulating material to reduce heat loss in the pipe. It is possible to improve the economical efficiency without having to use water heaters, and to make the cold protection effect perfect, and its application is not limited to the examples, but can also be applied to the combination of outgoing and returning pipes in hot water heating. be.

In this example, for ease of mixing, the water supply pipe is connected from the downstream side of the water governor of the water heater.
Even if the hot water supply pipe of this invention is connected directly from the conventional water pipe to the water supply pipe, an energy saving effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of an embodiment to which the conduit of this invention is applied, Fig. 2 is a cutaway perspective view of only the main parts,
FIG. 3 is a perspective view showing an example of a good thermal conductor. 6... Hot water outlet pipe, 8... Water supply pipe for mixing, 9... Outlet, 15... Hot water supply pipe, 16... Water supply pipe, 21...
...Insulating material, 22...Good thermal conductor, 23...Insulating material.

Claims (1)

[Scope of utility model registration request] In a pair of hot water supply pipe and water supply pipe,
The hot water supply pipe 15 is covered with a heat insulating material 21, and the hot water pipe 15 and the water supply pipe 16 covered with the heat insulating material are tied together and covered with a good heat conductor 22, and further, the outer periphery thereof is covered with another heat insulating material 23. Hot water supply pipe.