JPH0587260A - Immediate hot water tapping unit - Google Patents

Abstract

PURPOSE:To enable an amount of proper temperature hot water to be immediately supplied to a desired spot by connecting a spout of a hot-water supplier to a main hot-water inflow port of a combination faucet and also to a sub hot-water inflow port of the said faucet via a heat storage tank, and setting up a thermosensitive type control valve, interlocking with a hot tap being opened, in the combination faucet. CONSTITUTION:A spout 13 of a hot-water supplier 12 is connected to a main hot-water inflow port 16 of a combination faucet 15 and also to a sub hot-water inflow port 18 via a heat storage tank 20, while a feed water pipeline 25 is connected to a cold-water inflow port 24, and a feed-water faucet is connected to a mixed outflow port 21 of the combination faucet 15. In succession, a thermosensitive type control valve 36, interlocking with the valve opening of a hot tap and capable of adjusting each opening of the main hot-water inflow port 1 6, a sub hot-water inflow port 18 and the cold-water inflow port 24, is installed in the combination faucet 15. Since hot water is supplied out of the heat storage tank through operation of the thermosensitive control valve at the time of opening the feed-water faucet, proper temperature hot water is suppliable almost simultaneously with the opening of the feed-water faucet. Subsequently, proper or high temperature hot water is fed to the combination faucet in succession from the hot-water supplier through operation of the thermosensitive control valve.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instant tapping unit capable of instantly tapping hot water of a suitable temperature to a desired tapping point.

[0002]

2. Description of the Related Art Conventionally, there is a hot water discharge unit Q shown in FIG. 8 as one form of the hot water discharge unit.

As shown in the figure, the hot water supply unit Q connects a hot water outlet 51 of a water heater 50 to a hot water inlet 53 of a hot and cold water mixing tap 52,
In some cases, a water supply pipe 55 is connected to the water inlet 54 of the hot and cold water mixing tap 52, and a water tap 57 is connected to the mixed hot and cold water outlet 56 of the hot water mixing tap 52.

Further, a temperature sensitive operation valve is arranged in the hot and cold water mixing valve 52, and the temperature of the mixed hot water flowing out from the mixed hot and cold water outlet 56 can be adjusted to an appropriate temperature by the operation of the operation valve. ..

[0005]

However, in the hot water supply device Q described above, when the hot water supply pipe 58 and the water supply pipe 59 connecting the hot water supply device 50 and the hot and cold water mixing tap 52 are long, the water tap 57 is not used for a considerable period of time. Even if the power is turned on, the tap water in the hot water supply pipe 58 and the water supply pipe 59 is cooled, and it takes time for the outlet temperature of the water heater 50 to stabilize. It was difficult to get hot water.

That is, FIGS. 9 (a) and 9 (b) respectively show the outlet of the hot water supply device 50 at an appropriate temperature hot water supply (only the hot water supply device 50 supplies hot water of an appropriate temperature to the water supply tap 57 through the hot and cold water mixing tap 52). 6 is a graph showing the temperature and the hot water outlet temperature of the water tap 57. Both graphs are
It means that it takes time for the outlet temperature of the water heater 50 to stabilize after ignition, and the outlet temperature of the water tap 57 is further delayed until it reaches an appropriate temperature in proportion to the length of the hot water pipe 58.

9 (c), 9 (d), and 9 (e), high-temperature hot water (hot water from the water heater 50 is supplied to the hot and cold water mixing tap 52, and water is supplied from the water supply pipe 59 to the hot and cold water mixing tap, respectively. 5 is a graph showing the outlet temperature of the water heater 50, the inlet temperature of the water tap 57, and the hot water outlet temperature of the water tap 57 in (supplying to 52). Also in these graphs, it takes time for the outlet temperature of the water heater 50 to stabilize after ignition, and the inlet temperature of the hot and cold water mixing tap 52 is
It is shown that, in proportion to the length of the hot water supply pipe 58, the hot water is further delayed until it reaches a high temperature, and similarly, the hot water outlet temperature of the water tap 57 is further delayed until it reaches an appropriate temperature.

An object of the present invention is to provide an immediate hot water discharge unit which can solve the above problems.

[0009]

According to the present invention, a hot water outlet of a water heater is connected to a main hot water inlet of a hot and cold water mixing tap, and is connected to a secondary hot water inlet of the hot and cold water mixing tap via a heat storage tank. A water supply pipe is connected to the water inlet of the mixing tap, a water tap is connected to the mixing hot water outlet of the hot water mixing tap, and the hot water tap is operated in conjunction with the opening of the hot water tap. The present invention relates to an immediate hot water discharge unit, which is provided with a temperature-sensitive operation valve capable of adjusting the opening of the hot water inlet, the auxiliary hot water inlet, and the water hot inlet.

[0010]

In the present invention, regardless of whether the hot water is hot water or hot hot water, when the water tap is opened, the hot water is first supplied from the heat storage tank to the hot and cold water mixing tap by the operation of the temperature sensitive operation valve. Therefore, at the same time as the valve of the water tap is opened, hot water of an appropriate temperature can be discharged from the water tap. Then, by operating the temperature-sensitive operation valve, hot water of an appropriate temperature or high temperature is continuously supplied from the water heater to the hot and cold water mixing tap, and hot water of an appropriate temperature can be discharged from the water tap.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a water heater A according to the present invention with improved re-hot water performance will be specifically described below with reference to the accompanying drawings.

In the instant hot water discharge unit A shown in FIG.
Hot water outlet 12 of water heater 12 consisting of heat exchanger 10 and burner 11
Is connected to a main hot water inlet 16 provided on one side wall of the hot and cold water mixing valve 15 via a hot water supply pipe 14.

Further, a bypass pipe 17 is connected to the hot water supply pipe 14, and the tip of the bypass pipe 17 has a hot and cold water mixing tap.
It is connected to an auxiliary hot water inlet 18 provided on one side wall of the side wall 15.

A heat storage tank 20 having a heater 19 is attached to the bypass pipe 17, and the heat storage tank 20 is provided.
20 can store a certain amount of hot water while maintaining an appropriate temperature.

Further, the hot and cold water mixing valve 15 has a water inlet 24 on one side wall thereof, and a water supply pipe 25 is connected to the water inlet 24.

The hot and cold water mixing tap 15 is also provided with a mixed hot and cold water outlet 21 on the side wall on the other side.
It is connected to a water tap 23 (shown as a shower head in this embodiment) via a mixed hot water pipe 22.

2 to 6 show a concrete structure of the hot and cold water mixing valve 15.

As shown in FIGS. 2 and 3, both ends are provided with end walls 3
The cylindrical casing 32 having 0, 31 has an inner peripheral wall,
Three annular recessed grooves 33, 34, 35 are provided at intervals in the axial direction, and each annular recessed groove 33, 34, 35 is a sub-inlet inlet, respectively.
18, It is connected to the main hot water inlet 16 and the water inlet 24.

Further, a temperature-sensitive operation valve is provided in the cylindrical casing 32.
36 is retractable in the axial direction.

The temperature-sensitive operating valve 36 has a hollow cylindrical first valve body 37 that can open and close the sub hot water inlet 18 and the main hot water inlet 16 and a block block that has a hole that can open and close the water inlet 24. And a second valve body 38.

As shown in FIG. 4, the first valve body 37 has a spring seat 37b formed at the center of one end wall 37a thereof, and a hot water inflow opening 37c around the spring seat 37b.
Is provided.

The first valve element 37, as shown in FIG.
A valve shaft through hole 37e is provided in the center of the other side wall 37d.
A hot water outflow opening 37f is provided around the valve shaft through hole 37e.

On the other hand, the second valve body 38 has a hot water outflow hole penetrating from the one end wall 38a to the other end wall 38b around the center thereof.
38c is provided. Further, the second valve body 38 has one end wall thereof.
At the central portion of 38a, a base end of a valve shaft 38d which penetrates the valve shaft through hole 37e and extends into the inside of the first valve body 37 is provided in a protruding manner, and at the extension end thereof, as shown in FIG. , Spring support seat 38e is attached.

A spring force adjusting rod 39 is axially attached to the other end wall 31 of the tubular casing 32.
The spring force adjusting rod 39 has a spring receiving plate at one end thereof.
In addition to mounting 40, an operation handle 41 is attached to the other end, and the spring support plate 40 is interlocked with the rotation of the operation handle 41 through a known rotation / linear movement converting mechanism (not shown).
You can move back and forth.

Further, as shown in FIGS. 2 and 3, a plurality of springs 42, 43, 44, 45, 46 are arranged in the cylindrical casing 32. That is, the spring 42 is a cylindrical casing.
The spring 43 is provided between the one end wall 30 of the first valve body 37 and the one end wall 37a of the first valve body 37.
The spring 44 is interposed between the spring receiving seat 38e and the spring receiving seat 38e, and the spring 44 includes a spring receiving seat 38e provided at one end of the valve shaft 38d of the second valve body 38 and the other end wall 37d of the first valve body 37. The spring 45 is provided between the second end wall 37d and the second end wall 37d.
The spring 46 is interposed between the one end wall 38a of the valve body 38, and the spring 46 is interposed between the other end wall 38b of the second valve body 38 and the spring receiving plate 40 of the spring force adjusting rod 39. Has been done.

In this structure, the springs 42, 43, 44
Is a restoring spring, and the springs 45 and 46 are springs that expand and contract due to changes in the temperature of hot water or water, which can be replaced by wax pellets.

Next, the operation of the instant hot water discharge unit A having the above construction will be described with reference to FIGS. 2, 3 and 7.

When the water tap 23 is closed, the temperature sensitive operation valve 36 in the hot and cold water mixing tap 15 is in the state shown in FIG. That is, the auxiliary hot water inlet 18 is in almost complete communication with the internal space of the hot and cold water mixing tap 15, and the hot or hot water in the heat storage tank 18 can be immediately supplied to the hot and cold water mixing tap 15.

On the other hand, the main hot water inlet 16 is almost closed by the first valve body 37, and the main hot water inlet 16 communicates with the internal space of the hot and cold water mixing valve 15 through a slight opening.

Similarly, the water inlet 24 is almost closed by the second valve body 38, and the water inlet 24 communicates with the internal space of the hot and cold water mixing valve 15 through a slight opening.

Next, when the water tap 23 is opened, the hot water supply device 12 operates in synchronization with the opening operation, and hot water is supplied to the hot water supply pipe 14 and the bypass pipe 17.

By the way, like the conventional hot water discharge unit,
Even in the instant hot water supply unit A in the present embodiment, the water in the hot water supply pipe 14 is in a cooled state, and the cold water in the hot water supply pipe 14 tries to flow into the internal space of the hot and cold water mixing valve 15 as the water heater 12 operates. To do.

On the other hand, water is mixed with hot water through the water supply pipe 25.
It will be used for inflow into 15 internal spaces.

However, as described above, since the main hot water inlet 16 and the water inlet 24 of the hot and cold water mixing tap 15 are both substantially closed by the first valve element 37 and the second valve element, the water tap 23
Immediately after the opening operation of, only a small amount of water is supplied to the hot and cold water mixing valve 15.

On the other hand, since the auxiliary hot water inlet 18 of the hot and cold water mixing tap 15 is almost completely in communication with the internal space of the hot and cold water mixing tap 15, it is pushed by the water flowing into the heat storage tank 20 through the bypass pipe 17,
The high-temperature water in the heat storage tank 20 flows into the internal space of the hot and cold water mixing valve 15, flows through the first valve body 37 and the second valve body 38, and the mixed water outlet port.
Flow toward 21.

During such a flow-through operation, for example, high temperature water of about 70 ° C. is mixed with water slightly flowing in from the main hot water inlet 16 to reach about 50 ° C., and further, water slightly flowing in from the water inlet 24. Is further mixed to reach an appropriate temperature of about 40 ° C., flows out from the mixed hot water outlet 21 into the mixed hot water pipe 22, and is discharged from the water tap 23.

After that, as the springs 45 and 46 expand by being heated, the first valve body 37 and the second valve body 38
Moves in a direction in which the amount of communication between the main hot water inlet 16 and the water inlet 24 of the hot and cold water mixing valve 15 and the internal space of the hot and cold water mixing valve 15 is increased.

As a result, the immediate hot water discharge unit A shifts from the position immediately after the water tap is opened as shown in FIG. 2 to the normal operation position as shown in FIG. Water flows into the hot and cold water mixing tap 15 from the water inlet 24, is mixed and stirred to generate mixed hot and cold water having an appropriate temperature, and is discharged from the water tap 23 through the mixed hot and cold water outlet 21 and the mixed hot and cold water pipe 22. be able to.

FIG. 7 is a graph showing the water temperature or the hot water temperature and the mixing ratio of each part in the high temperature hot water immediately after the water tap 23 of the above-mentioned immediate hot water discharge unit A is opened.

That is, FIG. 7 (a) shows the change of the outlet temperature of the water heater 12, FIG. 7 (b) shows the change of the inflow temperature of the main hot water inlet 16, and FIG. 7 (c) shows the auxiliary hot water. Changes in the mixing ratio of hot water or water flowing into the internal space of the hot water 15 through the inflow port 18, the main hot water inflow port 16, and the water inflow port 24 are shown in Fig. 7 (d). The change in the temperature of the mixed hot water from the main hot water inlet 16 is shown, and FIG. 7 (e) shows the change in the hot water temperature of the tap 23.

As is apparent from FIG. 7 (e), in this embodiment, the hot and cold water mixing plug 15 is inserted from the heat storage tank 20 immediately after the opening operation of the water tap 23.
Since the high-temperature hot water is made to flow into the hot water, it is possible to obtain a hot water temperature substantially equal to the optimum temperature immediately after the opening operation of the water tap 23, and then to obtain the optimum temperature while increasing the hot water discharge temperature with a slight inclination.

[0042]

As described above, according to the present invention, the hot water outlet of the water heater is connected to the main hot water inlet of the hot and cold water mixing tap and is connected to the auxiliary hot water inlet of the hot and cold water mixing tap via the heat storage tank. A water supply pipe is connected to the water inlet of the hot and cold water mixing tap, a water tap is connected to the mixed hot and cold water outlet of the hot and cold water mixing tap, and the hot water and water mixing tap operates in conjunction with the opening of the hot water tap, A temperature-sensitive operation valve that can adjust the opening degree of the main hot water inlet, the sub hot water inlet, and the water hot inlet is provided.

Therefore, regardless of the length of the hot water supply pipe, the hot water can be supplied from the heat storage tank to the hot and cold water mixing tap immediately after the opening of the water tap to obtain the appropriate temperature water. Further, since the high temperature hot water and the water are mixed by using the temperature sensitive operation valve, a stable hot water temperature can be obtained.

Since high-temperature hot water is stored in the heat storage tank during a normal hot water supply operation, it is economical to use the heater only for heat retention.

[Brief description of drawings]

FIG. 1 is a conceptual explanatory diagram of the overall configuration of an instant hot water discharge unit according to the present invention.

FIG. 2 is an explanatory view of the internal structure of a hot and cold water mixing tap immediately after the water tap opening operation used in the instant hot water discharge unit according to the present invention.

FIG. 3 is an explanatory view of the internal structure of a hot and cold water mixing valve used in the instant hot water discharge unit according to the present invention during normal operation.

4 is a cross-sectional view taken along the line I-I of FIG.

5 is a cross-sectional view taken along the line II-II of FIG.

6 is a cross-sectional view taken along the line III-III in FIG.

FIG. 7 is a graph showing changes in water temperature or hot water temperature in each part of the instant hot water discharge unit according to the present invention.

FIG. 8 is a conceptual configuration diagram of a conventional water heater.

FIG. 9 is a graph showing changes in water temperature or hot water temperature in each part of a conventional hot water outlet unit.

[Explanation of symbols]

 A Immediate hot water supply unit 12 Hot water supply device 13 Hot water outlet 15 Hot water / water mixing tap 16 Main hot water inlet 18 Secondary hot water inlet 20 Heat storage tank 23 Water tap 24 Water inlet 25 Water supply pipe 36 Temperature sensitive control valve

Claims (1)

[Claims] 1. A hot water tap (13) of a water heater (12)
It is connected to the main hot water inlet (16) of 5) and also to the sub hot water inlet (18) of the hot and cold water mixing valve (15) through the heat storage tank (20), and the water flow inlet of the hot and cold water mixing valve (15). Connect the water supply pipe (25) to (24),
A hot water tap (23) is connected to the hot water tap (21) of the hot water tap (15), and the hot water tap (23) operates in conjunction with the opening of the hot water tap (23). An immediate hot water discharge unit characterized in that a temperature-sensitive operation valve (36) capable of adjusting the openings of the main hot water inlet (16), the sub hot water inlet (18), and the water hot inlet (24) is provided.