JPH02203151A - Electric hot-water supplier - Google Patents

Abstract

PURPOSE:To obtain hot water of high temperature in a relatively short time after an operation is started, by a method wherein the hot water of set temperature is heated and stored by a set quantity from the top of a hot-water storage tank. CONSTITUTION:With a stop plug 15 opened, supply water passes through a pressure reducing valve 14 and a supply water pipe 13 and is stored in a hot-water storage tank 1. By the operation of a rotation speed control type water pump 8, the supply water in the hot-water storage tank 1 flows out of the bottom of the tank 1 through a supply-water takeout pipe 7 and flows into a heater 10 element. It is heated therein by an electric energy fed to a sheath heater and then passes a supply water return pipe 11 and returns to the hot-water storage tank 1 from the top of this tank. The temperature of the supply water at the outlet of the heater 10 is controlled to be a temperature set beforehand by a supply hot-water temperature detecting sensor 12, by controlling the rotation speed control type water pump 8. Thus, the supply water of preset temperature is stored in the hot-water storage tank 1 from the top thereof. The control of the quantity of hot water is conducted by the operation of hot-water quantity detecting sensors 6 provided on the wall surface of the hot-water storage tank 1.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a hot water storage type electric water heater.

(Prior Art) Conventionally, a hot water storage type electric water heater has a sheathed heater built into a hot water storage tank and is energized by energizing the sheathed heater.
It was designed to heat all of the hot water in the hot water storage tank to a set temperature.

(Problem II to be solved by the invention) Conventional electric water heaters have to heat the entire amount of hot water in the hot water storage tank regardless of the amount of hot water used, and if there is residual hot water, heat radiation loss increases and is uneconomical. There are issues to be solved.

The present invention solves the above problems and provides an electric water heater that can heat only the amount of hot water that is actually required.

(Means for Solving the Problems) In order to solve the above problems, the electric water heater of the present invention has a water supply connection port, a hot water supply connection port, and a hot water supply outlet.

A hot water storage tank equipped with a hot water return port and multiple hot water quantity detection sensors is connected to a hot water supply pipe, a hot water supply pipe, a water supply temperature detection sensor, a speed-controlled water pump, a heating heater, a hot water supply temperature detection sensor, and a hot water supply return pipe. The hot water heating circuit is connected to the hot water tank.

(Function) In the above configuration, the hot water in the hot water storage tank passes through the hot water supply pipe by the action of the rotation speed controlled water pump, is heated by the heating heater i2, and is heated by the heating steps 1' and 1'. (R, supply? Ha ice pipe, L, recirculates to the hot water storage tank. Heating of hot water supply +,;'11,;b
4t is set to 1〉, heating I'-1-ta is set to 11.
″: Light: LJ' 1-Hot water supply To Sugichi-1r-, the hot water supply temperature is heated so that it reaches the set temperature (, -), 7. The amount of hot water supply ice sent is controlled by the rotation speed. Controlled by a water pump, 5 pipes are heated on the one hand (2,!,
It is controlled by four hot water storage tanks C1' installed, a vortex carrier, a hot water outlet 1, a pipe 1, and a water supply mixture detection sensor.

(Example) Hereinafter, an example of the present invention will be described based on the first drawing. 1 is a hot water storage tank that stores hot water.

A water supply connection III 2 and a hot water outlet 3 are provided at the bottom of the hot water storage tank 1.A hot water connection port 4 and a hot water return port 15 are also provided at the top of the hot water storage tank 1. Numeral 6 indicates a plurality of hot water quantity detection sensors, which are fixed to the wall of the hot water storage tank 1 for a certain period of time. 50 (J,
100 (', , 200 e, 300
f' is installed in the same position as 1.

H;ll#kaimanmizutoriqout1. One end with a pipe 4-Kubeibanyu water drain +! The other end is connected to the IL line 13r, and the other end is the rotation speed control type water pump 8 (connected to the connection 1 near I. 9U, the water supply temperature detection sensor -, and the hot water outlet J to the pipe 7 Pipe wall G, ``fixed, 5 placed., 1011: Heating heater, located, heating 1'', -, evening 10-1 old-''II; 141, Hot water supply Return pipe 11 is connected (Jll, dark) / Nomizu Jteri pipe 1
The end CJ1 of 1 is connected to the hot water supply return eye 5 provided in the hot water storage tank 1.

Reference numeral 12 denotes a hot water supply temperature detection sensor, which is fixed to the pipe wall of the hot water supply water return pipe 11 and is separated from the pipe wall. 13 is the water supply connection.

02 is a water supply pipe connected to TJi, 14 is an L-wave pressure valve installed in the middle of the water supply pipe 13, 15 is a 11-water faucet. 1G is a hot water pipe connected to hot water connection 1-14, 17
is a safety valve.

Electricity supply for the above IK example? The Fh device opens the stop valve 15, - and then the hot water supply Gj and the wave pressure valve 14. Water is stored in the hot water storage tank 1 along the water supply pipe 13, and the hot water in the hot water storage tank 1 is taken out from the bottom of the hot water storage tank 1 by the action of the rotation speed controlled water pump 8. It flows out from pipe 7 and is heated.
The hot water flowing into the hot water tank 210 is heated by the electricity supplied in the evening, passes through the hot water return pipe 11, and returns to the hot water storage tank l from the top of the hot water storage tank 1. The temperature of the hot water at the outlet of the heater 10 is controlled by controlling the rotation speed controlled water pump 8 so that the temperature is set in advance by the hot water temperature detection sensor 12. That is, hot water at a preset temperature is stored from the top of the hot water storage tank 1. Eighth-order hot water quantity control is performed by the action of a hot water quantity detection sensor 6 provided on the wall of the hot water storage tank 1. That is, at the stage when the hot water amount detection sensor corresponding to the preset hot water amount detects the hot water temperature at the set temperature, the operation of the rotation speed controlled water pump 8 and the heating heater 10 is stopped.

In addition, when heating the entire amount of hot water storage tank 1, the operation is stopped when the picture book temperature detection sensor 9 fixed to the hot water supply pipe 7 reaches the set temperature.

When using heated hot water as described above, by opening the terminal of the hot water pipe 1G (indicated by the planned hot water tap (14 in the figure)), a new supply of water (from the bottom of the hot water tank 1) can be made. The hot water is supplied from the water.

(Effects of the Invention) The electric water heater of the present invention can be set from the top of the hot water storage tank!
, it is possible to heat and store hot water at a set temperature of 12, so i! ! High-temperature hot water can be obtained in a relatively short time after the start of conversion. In addition, since the necessary level of hot water can be obtained, unnecessary over-boiling can be prevented, and heat loss due to heat radiation can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an electric water heater showing an embodiment of the present invention. 1...Hot water storage tank, 2...Water supply connection Y
], 3...Hot water supply L], 4...
・Hot water supply connection port, 5...Hot water supply return [], 6...
...Hot water amount detection sensor -17...Hot water supply pipe, 8...Rotation speed control water pump, 9...
...Water supply temperature detection sensor, 10...Heating heater, 11...Hot water supply return pipe, 12...
...Hot water temperature detection sensor, 13...Water supply pipe, 14...Pressure reducing valve, 15.Old...Water stop valve, 16
...Hot water pipe, 17...Safety valve.

Claims (1)

[Claims] A hot water storage tank equipped with a water supply connection port, a hot water supply connection port, a hot water supply water wheel outlet, a hot water supply water return port, multiple hot water quantity detection sensors, a hot water supply pipe, a water supply temperature detection sensor, a rotation speed controlled water pump, a heating heater, An electric water heater comprising a hot water heating circuit formed by connecting a hot water temperature detection sensor and a hot water return pipe, the hot water heating circuit being connected to the hot water storage tank.