JPH05106914A - Electric hot water maker - Google Patents

Abstract

PURPOSE:To provide a means to obtain selectively hot water or water through a purifier and hot water or water not through this purifier in an electric hot water maker provided with a purifier. CONSTITUTION:The subject electric hot water maker is provided with another tank 19 that is different from a tank 1, another hot water mixing cock 26 that is different from a hot water mixing cock 16, and supply water channel 21 which supplies water to the tank 19 not through a purifier 7 but by branching a flow channel are provided. With this arrangement the life of purification of the purifier can be prolonged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater.

[0002]

2. Description of the Related Art FIG. 2 is a sectional view showing the outline of the construction of a conventional electric water heater of this kind. Heater 3 that generates heat by supplying water to the tank 1 is a water supply pipe for supplying water from the water source to the tank 1. 4 is a water stopcock for shutting off the water source. Is a water supply pipe forming a flow path connecting the pressure reducing valve 5 and the water stopcock 4.

Reference numeral 7 is a purifying device for purifying the water source water to the tank 1, 7a is a filter for purifying the water supplied from the water source installed in the purifying device 7, and 7b is a male screw or a female screw. Is a filter cap that is cut and is integrated with the filter 7a, 8 is a water supply pipe that connects the pressure reducing valve 5 and the purification device 7, and 9 is for operating when an abnormal pressure occurs in the tank 1 and for releasing the pressure. Safety valve, 1
Reference numeral 0 denotes a drain pipe that discharges water mixed with steam from the safety valve 9 and flowing out.

Reference numeral 11 denotes a water supply pipe constituting a flow path through which the water purified by the purification device 7 flows, and 12 a water supply pipe for supplying water purified by the purification device 7 by branching the water supply pipe 11 into two. , 13 are the other water supply pipes in which the water supply pipe 11 is bifurcated, and constitute a flow path connecting the purification device 7 and the safety valve 9. Reference numeral 14 is a water supply pipe forming a flow path connecting the safety valve 9 and the tank 1, 15 is a hot water supply pipe for supplying hot water in the tank 1, 16 is water supplied from the water supply pipe 12 and the hot water supply pipe 15
Hot and cold water mixing tap for mixing hot water supplied from
Is a water supply faucet, 16b is a hot water supply faucet, 16c is a water supply and hot water currant, 17 is a flow path connecting the hot water supply pipe 15 and the hot water mixing tap 16, and 18 is a flow path connecting the water supply pipe 12 and the hot water mixing tap 16 And the arrows in the drawing indicate the flow of hot water or water.

The conventional electric water heater of this type is constructed as described above. For example, by opening the water supply faucet 16a, purified water can be obtained through the purifying device 7. In addition, when all the water supplied to the tank 1 is also purified via the purifying device 7 and supplied to the tank 1, when the power is turned on and the heater 2 heats the water to complete boiling,
By opening the hot water supply faucet 16b, purified and boiled hot water can be obtained. In addition, tap 1 for exclusive use of water supply
It is possible to obtain hot water of any temperature by appropriately opening both 6a and the hot water supply faucet 16b, and adjusting the hot water and water to flow out. In this case as well, all of them go through the purification device 7. It becomes a purified hot water.

[0006]

In the conventional electric water heater as described above, all the hot water and water obtained is purified through the purifying device 7, and is purified even when it is not necessary. There is a problem that the life of the purifying device 7, especially the life of the filter 7a is unnecessarily shortened.

The present invention has been made in order to solve such a problem, and it is possible to obtain both hot water and water purified with a simple structure and hot water and water that have not been purified, and the purification device 7
It is an object of the present invention to provide an electric water heater that can eliminate wasteful use of water.

[0008]

In the electric water heater according to the present invention, a tank 19 different from the tank 1, a hot and cold water mixing plug 26 different from the hot and cold water mixing plug 16 and a flow path are diverged for purification. A water supply passage 21 for supplying water to the tank 19 without passing the device 7 is provided.

[0009]

In the electric water heater constructed as described above, hot water or water purified through the purifying device 7 is obtained from the hot and cold water mixing tap 16, and hot water or water that is not passed through the purifying device 7 is obtained from the hot and cold water mixing tap 26. You can get and use it.

[0010]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which 1 to 18 are exactly the same as the above conventional device. Reference numeral 19 is a second tank for storing water or hot water, 20 is a heater attached to the tank 19 to generate heat when energized, 21
Is a water supply channel branched from the water supply pipe 6, and the pressure reducing valve 5
And a tank 19 is connected to form a flow path to supply water to the tank 19. Reference numeral 22 is a safety valve that operates when an abnormal pressure is generated in the tank 19 to release the pressure, and 23 is a drain pipe that discharges water mixed with steam from the safety valve 22 and flowing out, the tip of which is connected to the drain pipe 10. ing.

Reference numeral 24 is an exhaust pipe connecting the tank 19 and the safety valve 22, 25 is a hot water supply pipe for supplying hot water boiled in the tank 19, and 26 is water supplied from a water source and the hot water supply pipe 2.
A hot and cold water mixing tap for mixing hot water supplied through 5.
6a is a faucet dedicated to water supply, 26b is a faucet dedicated to hot water supply, 26c is a hot water supply hot water supply curran, 27 is a flow path connecting the mixing tap 26 and the hot water supply pipe 25, 28 is a flow path connecting a water source and the mixing tap 26, The arrows in the drawing show the flow of hot water or water.

Next, the operation will be described. For example, by opening the water supply faucet 16a, water purified through the purifying device 7 can be obtained. Further, when the power is turned on and the hot water is heated by the heater 2 to complete the boiling of the hot water in the tank 1, the hot water supply faucet 16b is opened to obtain the hot water purified by the purification device 7 and boiled. it can. Further, by appropriately opening both the water supply faucet 16a and the hot water supply faucet 16b and adjusting the hot water and the water to flow out, hot water of any temperature purified by the purifying device 7 can be obtained. ..

Further, in the device according to this embodiment, the water source water is directly obtained without passing through the purifying device 7 by opening the water supply faucet 26a, and the power is turned on to boil the hot water in the tank 19. When completed, hot water that does not pass through the purification device 7 can be obtained by opening the hot water supply faucet 26b, and the water supply dedicated faucet 26a and the hot water supply dedicated faucet 26b can be obtained.
It is possible to obtain hot water of an arbitrary temperature that does not pass through the purification device 7 by appropriately opening both of them and adjusting the hot water and the water to flow out.

[0014]

Since the present invention is constructed as described above, it is possible to use hot water or water purified with a simple structure and hot water or water that has not been purified, and to waste the purification device. There is an effect that the purifying action of the purifying device can be maintained for a long period of time by eliminating unnecessary use.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a schematic configuration of a conventional electric water heater.

[Explanation of symbols]

 1 Tank 2 Heater 4 Water Stopper 5 Pressure Reducing Valve 7 Purifier 9 Safety Valve 16 Hot Water Mixing Tap 19 Tank 20 Heater 21 Water Supply Channel 22 Safety Valve 25 Hot Water Supply Pipe 26 Hot Water Mixing Tap

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[Procedure amendment]

[Submission date] February 4, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

Reference numeral 7 is a purifying device for purifying the water source water to the tank 1, 7a is a filter for purifying the water supplied from the water source installed in the purifying device 7, and 7b is a male screw or a female screw. Is a filter cap that is cut and is integrated with the filter 7a, 8 is a water supply pipe that connects the pressure reducing valve 5 and the purification device 7, and 9 is for operating when an abnormal pressure occurs in the tank 1 and for releasing the pressure. Safety valve, 1
Reference numeral 0 denotes a drain pipe for discharging hot water discharged from the safety valve 9.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

[0010]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which 1 to 18 are exactly the same as the above-mentioned conventional device. Reference numeral 19 is a second tank for storing water or hot water, 20 is a heater attached to the tank 19 to generate heat when energized, 21
Is a water supply channel branched from the water supply pipe 6, and the pressure reducing valve 5
And a tank 19 is connected to form a flow path to supply water to the tank 19. Reference numeral 22 is a safety valve that operates when an abnormal pressure is generated in the tank 19 to release the pressure. Reference numeral 23 is a drainage pipe for discharging hot water discharged from the safety valve 22, the tip of which is connected to the drainage pipe 10.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011] 24 discharge water pipe connecting the tank 19 and the safety valve 22, 25 is hot water supply pipe for hot water supply hot water that has been boiled in the tank 19, 26 is water and hot water supply pipe 2 which is water from the water source
A hot and cold water mixing tap for mixing hot water supplied through 5.
6a is a faucet dedicated to water supply, 26b is a faucet dedicated to hot water supply, 26c is a hot water supply hot water supply curran, 27 is a flow path connecting the mixing tap 26 and the hot water supply pipe 25, 28 is a flow path connecting a water source and the mixing tap 26, The arrows in the drawing show the flow of hot water or water.

Claims (1)

[Claims] 1. A tank having a heating means inside for storing water or hot water (this tank is tentatively referred to as a first tank) and a purifying device, and is provided from a water source supplied through a water supply pipe. Water is purified through the purifying device, one flow passage of which is supplied to a hot and cold water mixing tap connected to the outside of the device (this is tentatively called a first hot and cold water mixing tap), and the other flow passage is of the first flow path. An electric water heater which supplies water to a tank and heats it with the heating means to form hot water having a predetermined temperature, and supplies the hot water to the first hot and cold water mixing tap in a second tank different from the first tank. , A second hot and cold water mixing valve other than the first hot and cold water mixing valve, and a water feeding channel connected to the water feeding pipe to branch the flow path to pass water to the second tank without passing through the purifying device. Means for performing hot water purified from the first hot and cold water mixing valve through the purification device. Others give water, electric water heater, characterized in that the piping arrangement for obtaining hot water or water impermeable the purification apparatus from said second mixing faucet.