JPH08151667A - Piping equipment - Google Patents

Abstract

PURPOSE: To improve easiness of use by providing a mixing part to mix water and hot water flowing from branched piping of water feed piping and hot water feed piping into it and mixing water piping, and providing a delivery port at the ends and merged ends of water feed, hot water feed, and mixed water feed piping. CONSTITUTION: Hot water mixing faucets 2 and 3 for bathroom and kitchen are connected directly to a feed water distributor 12 and a hot water distributor 13. Next, when hot water is used, for example, for additional filling to a bathtub or for dish washing, hot water from a hot water distributor 13 connected directly to a water heater 10 or hot water mixed with water to lower temperature is used. Also a hot water mixing faucet for bathroom 4 and water faucet for lavatory dresser 5 are connected properly to a distributor 15. When the temperature of water from the distributor 15 is set at a specified temperature, hotter water than that water is not delivered. For example, hot water suitable for face washing and hand washing can be obtained without regulating temperature. Thus hot water of required temperature can be used immediately without taking much time for temperature regulation and, because it is supplied through the distributor, a variation in flow rate can be suppressed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply / hot water supply facility such as a general house, and in particular, can supply hot water or water at an appropriate temperature according to the application and can quickly supply the temperature to the temperature according to the application. It relates to the plumbing equipment that can be adjusted to.

[0002]

2. Description of the Related Art In a house equipped with hot water supply equipment such as an electric or gas water heater, pipes for sending hot water and water to various supply destinations such as a kitchen, a bathroom, and a vanity are provided. As described in, for example, Japanese Patent Application Laid-Open No. 4-368521, this piping is mainly provided with headers for hot water supply and hot water supply, and pipes from these headers are joined on the way to form a flow path to a supply end. It is common to connect. Then, each supply end is provided with a hot and cold water mixing plug for setting a temperature by setting a mixing ratio of water and hot water, and by operating this, hot water of an appropriate temperature can be obtained.

Further, instead of the headers for water and hot water supply, as described in, for example, Japanese Utility Model Laid-Open No. 3-115167, a main pipe connected to a hot water supply source is provided to each supply destination by this main pipe or a branched pipe. There is also a facility that connects the channels of.

[0004]

There are various types of hot and cold water mixing taps, but the basic configuration is to adjust the temperature by setting the amount ratio of hot water and hot water, and especially water. For models that operate both the hot and cold side valves, temperature setting and adjustment are often troublesome. For this reason, in the case of a kitchen that requires high-temperature hot water and a bathroom vanity that uses relatively low-temperature hot water, the valve operation is It is necessary to change the procedure, and it is not always preferable in terms of usability.

Further, in equipment for setting the temperature of hot water on the side of the hot water supply device, when it is set to the low temperature side, for example, all the hot water in the hot water supply pipe gradually shifts to a low temperature as it is discharged. For this reason, when high-temperature hot water is required in the same common facility, the required hot water temperature cannot be obtained even if the valve opening on the hot water side of the hot and cold water mixing tap is opened to the maximum. The temperature of the hot water on the side will be set again.

On the other hand, although such a change in the temperature setting of the water heater can be operated by a remote controller or the like,
It requires habituation and is difficult for children and the elderly to use. If the temperature of the hot water in the system is determined by setting the temperature of the water heater, problems such as when set to the low temperature side and similar inconveniences are likely to occur as described above, and the usability of the remote controller is improved. Even if it is achieved, various obstacles remain in actual use.

For example, in a hot and cold water mixing tap in a kitchen, hot water of a considerably high temperature is used together with a detergent to wash off oil such as dishes. In this case, when using relatively low-temperature hot water such as a vanity and a shower, opening the hot-water valve causes hot water above the required temperature to be discharged, and the opening on the water side must be increased. Then, the operation of lowering the temperature of the hot water is required. Further, at such a high temperature setting, there is a high risk of bathing high temperature water.

On the other hand, when the water heater side is set to low temperature water for use in, for example, a bathroom vanity or a toilet seat for hot water washing,
When trying to use hot water in the kitchen, it is necessary to change the temperature setting of the water heater because hot water at the required temperature cannot be obtained, which also affects usability.

Further, in equipment for connecting a large number of branch pipes to a main pipe, when hot water is being discharged from one faucet while another is faucet, the amount of hot water supplied from the hot water source and the hot water temperature are constant. Since it is set to, the hot water temperature will fluctuate and fluctuate, which also poses a major obstacle to usability.

As described above, in the conventional equipment, it is difficult to perform hot water supply in a temperature range suitable for each use of the supply destination from the start of water discharge.

The problem to be solved by the present invention is to quickly supply hot water of a temperature suitable for the use condition to various water dischargers provided at the end of the flow path of piping equipment without any trouble such as complicated temperature adjustment. It is to be able to sprinkle water.

[0012]

The present invention provides a water supply passage pipe connected to a water supply source, a hot water supply passage pipe connected to a hot water supply source, and a flow passage pipe branched from the water supply passage pipe and the hot water supply pipe. At least one of the water supply passage pipe, the hot water supply passage pipe, and the mixed water pipe is provided with a mixing portion that communicates water and hot water flowing in at a predetermined mixing ratio, and a mixed water pipe connected to the mixing portion. It is characterized in that a discharge port is provided at the end of the flow path of one pipe, or at the confluence end by the combination thereof or at the downstream thereof.

In such a construction, the mixing section can be provided with a mixing ratio adjusting means capable of adjusting the respective mixing ratios of water from the water supply pipe and hot water from the hot water supply pipe.
Further, it may be configured to include an automatic temperature adjusting means for automatically adjusting the flow ratio of water and hot water according to the set temperature.

Further, the water supply passage piping, the hot water supply passage piping and the mixed water piping may be connected to the downstream side by a distributor which distributes to a plurality of independent flow passages. In this case, the distributor is A water stopcock or a water hammer prevention mechanism may be provided in each flow path to the downstream end of the flow path.

[0015]

The hot water mixing taps are connected to the respective flow path ends of the water supply pipe and the hot water supply pipe, and another hot water mixing tap is connected to the ends of the water supply pipe and the mixed water pipe. By setting the temperature of the hot water on the hot water supply side to the maximum temperature of the hot water used in the system, hot water in the high temperature range can be obtained as it is at the hot and cold water mixing tap connected to the hot water supply pipe.

Further, since the hot water to the mixed water pipe can be set to a temperature set by the mixing ratio adjusting means or the automatic temperature adjusting means for automatically adjusting the mixing ratio to the set temperature, the set temperature is set to a low temperature. By keeping it on the side, hot water can be supplied without the trouble of adjusting the temperature of the hot and cold water mixing tap, and the usability can be improved by applying it to a supply destination that does not require high temperature hot water.

By connecting the water supply and hot water supply source side to each water discharger at the end through a distributor, for example, when each water discharger is connected to a plurality of branch pipes branched from the main pipe, use of each water discharger It is possible to suppress the fluctuation of the flow rate depending on the situation. Further, the outer diameter of the pipe from the distributor to each of the water dischargers can be adapted to the optimum flow rate value used in these water dischargers. Therefore, in the case of a small flow rate, the amount of water accumulated in the internal flow path can be reduced by reducing the outer diameter of the pipe, cooling due to heat dissipation can be prevented, and waste water such as waste water at the initial stage of water discharge can be avoided.

Further, since the distributor is provided with the water stopcocks in the flow paths toward the respective water dischargers, it becomes unnecessary to incorporate the waterstopper into each of the water dischargers. Further, by incorporating the water hammer prevention mechanism, the water hammer phenomenon is prevented even if the flow paths to the plurality of water dischargers are connected to the distributor and the water dischargers are simultaneously opened and closed.

Further, by providing the automatic temperature adjusting means, the hot water supply temperature from the mixed water pipe can be arbitrarily changed, and hot water supply corresponding to the optimum use temperature for each water discharger can be realized.

[0020]

1 is a schematic view showing a piping system of the piping equipment of the present invention.

In the illustrated example, water from the water supply source 1 is used to supply and hot water as a terminal device, which is a hot and cold water mixing tap for a bathtub, a hot and cold water mixing tap for a kitchen 3, and a shower bath for a bathroom. It is provided with a hot and cold water mixing tap 4, a hot and cold water mixing tap 5 of a vanity 5a, and a local cleaning device 6 of a toilet 6a.

A strainer 7 for removing foreign matter is installed downstream of the water supply source 1 and is branched into a water supply passage pipe 8 and a hot water supply pipe 9 from the downstream side thereof.
Incorporate 0. And the water supply pipe 8 and the hot water supply pipe 9
A distribution unit 11 is connected to the end of the flow path for supplying water and hot water and their mixed water to the equipment at each end as they are or with automatic temperature control.

The distribution unit 11 has a function of supplying the mixed water of the hot water mixing valves 2 to 5 and the local cleaning device 6 in the respective suitable temperature ranges. The constituent elements are a water supply distributor 12 directly connected to the water supply passage pipe 8, a hot water distributor 13 directly connected to the hot water supply passage pipe 9, and a confluence point of the water supply passage pipe 8 and the hot water supply passage pipe 9 with automatic temperature control. An automatic temperature control unit 14 incorporated as a mixing section equipped with a control unit, and an appropriate temperature distributor 15 arranged downstream of the automatic temperature control unit 14.

The water supply distributor 12 receives only the water from the water supply source 1 from the water supply pipe 8 and supplies it to the hot and cold water mixing taps 2 to 5 and the local cleaning device 6 by the water supply pipes 12a, 12b, 12c and 12 respectively.
d, 12e. Then, the water stoppers 12 are respectively provided at the branch portions to these water supply pipes 12a to 12e.
incorporate f. It is needless to say that the water supply distributor 12 can be configured as a facility that is provided with a large number of water supply ports and supplies water to various end devices.

The hot water distributor 13 receives only the hot water supplied from the hot water supply pipe 9 via the hot water supply device 10, and in the illustrated example, a hot and cold water mixing tap using relatively hot water for bathtubs and kitchens. Hot water can be supplied to hot water supply pipes 2 and 3 by hot water supply pipes 13a and 13b. And each hot water supply pipe 1
It is similar to the case of the water supply distributor 12 that the water stop plug 13c is incorporated in the branch portions of 3a and 13b. In the hot water supply distributor 13 as well, it is possible to provide a larger number of hot water supply ports than in the illustrated example and connect each to the end device.

The automatic temperature control unit 14 may be of the type conventionally known as a thermostat mixing valve. For example, a temperature sensing element containing wax pellets or a temperature sensing element using a shape memory alloy may be used as an internal flow path. To prepare for. Then, a temperature setting unit 14a that can be operated manually or by a remote controller (not shown) to set the discharge temperature is attached as a set temperature adjusting means, and the temperature is set to a required temperature by this, and the pressure of water supply and hot water supply is set. It has a configuration that can always maintain the temperature by returning to the set temperature even when the temperature fluctuates.

The automatic temperature control unit 14 is connected to the water supply passage pipe 8 and the hot water supply pipe 9 by connection passages 8a and 9a branched from the water supply and hot water supply distributors 12 and 13, respectively. Check valves 8b and 9b are incorporated in 9a. A control valve body is located in the internal flow passage of the automatic temperature control unit 14 communicating with the connection flow passages 8a and 9a, and the control valve body is driven by the temperature sensing element or the temperature sensing element described above, so that the downstream side The hot water toward the appropriate temperature distributor 15 connected to can be maintained at, for example, about 35 ° C.

In the optimum temperature distributor 15, mixed water pipes 15a, 15 for the hot and cold water mixing taps 4 for bathrooms and hot and cold water mixing taps 5 of the vanity 5a which often use relatively low temperature hot water.
Connect b respectively. And these mixed water piping 1
Similarly, a water stop plug 15c is provided at the branching portion into 5a and 15b. It should be noted that the appropriate temperature distributor 15 can also be provided with a plurality of appropriate temperature water supply ports so that the flow paths to various end devices can be connected.

Here, these water supply and hot water supply distributors 12,
13, the proper temperature distributor 15 and the automatic temperature control unit 14 are arranged in a box-shaped distribution unit 11. As a result, the water stopper 12f
And the operation of setting the discharge temperature from the proper temperature distributor 15 by the temperature setting unit 14a can be collectively performed at one place, and the equipment can be downsized.

In the above construction, the hot and cold water mixing tap 2 for the bathtub and the hot and cold water mixing tap 3 for the kitchen are directly connected to the water supply distributor 12 and the hot water supply distributor 13, respectively. When hot water is used for washing dishes or dishes, the hot water from the hot water distributor 13 directly connected to the water heater 10 can be used as it is or as a mixed water which is mixed with water to have a slightly low temperature.

On the other hand, the hot and cold water mixing tap 4 for the bathroom and the water intake 5 for the vanity 5a are connected to the appropriate temperature distributor 15 instead of the hot water distributor 13. At this time, if the discharge temperature from the optimum temperature distributor 15 is set to about 35 ° C., hot water having a temperature higher than this is not discharged, and for example, without adjusting the temperature of hot water suitable for face washing, hand washing, etc. Easy to get.

That is, when the temperature of the hot water of the hot water supply source is high, it is necessary to reduce the valve opening on the hot water side of the hot and cold water mixing plugs 4 and 5 to increase the valve opening on the hot water side. By lowering the temperature to a value close to the temperature at which it is actually used, such an operation of the valve opening can be omitted. Therefore, it is not necessary to adjust the temperature over time while turning the valve opening / closing handle each time it is used, and the hot water of the most suitable temperature for use can be immediately obtained, which greatly improves the usability.

As described above, by using the piping system which is divided into the use at high temperature directly connected to the hot water distributor 13 and the use at relatively low temperature connected to the proper temperature distributor 15, temperature control by complicated valve operation is performed. It is possible to obtain hot water at the optimum temperature for each use in the hot and cold water mixing taps 2 to 5 at the end without having to do each one.

Further, if the water heater 10 is set to be capable of supplying hot water corresponding to the maximum temperature used in the facility, it is not necessary to change the temperature set value thereafter. That is, by providing a pipe for directly connecting the hot water dispenser 13 or connecting the appropriate temperature dispenser 15 to a hot and cold water mixing tap that is expected to be used at high temperatures and low temperatures, the hot water dispenser can be used at low temperatures. The temperature setting of the high temperature by 9 is made unnecessary by the proper temperature distributor 15. Therefore, if hot water corresponding to the maximum temperature in the system can be obtained from the water heater 9, it can be used in both high temperature and low temperature operating conditions, and the temperature of the water heater 9 can be set. Useless. Therefore, it is not necessary to change the temperature setting using the remote controller or the operation panel, and the usability can be improved in this respect as well.

Here, the hot water supply pipes 12a to the hot water 2 to 5 are supplied to the hot waters 2 to 5 through the hot water and hot water distributors 12 and 13 and the proper temperature distributor 15.
12e, hot water supply pipes 13a and 13b, and mixed water pipe 15
a and 15b are connected. Such a distributor 12,
In the case of a piping group using 13 and 15, even if one of the hot and cold water mixing taps 3 and 4 is used while using one hot and cold water mixing tap 2, the flow rate of water supplied by the distributor, hot water supply, and appropriate temperature water Since there is a margin in distribution, hot and cold water mixing tap 2
The fluctuation in the direction of decreasing the discharge amount is small, and the change in the discharge amount can be suppressed. Further, since independent pipes are connected to the hot and cold water mixing plugs 2 to 5 from the distributors 12, 13, and 15, the outer diameter of the pipe can be selected according to the flow rate to be used. For this reason, when the flow rate used per unit time is small, the outer diameter of the pipe can be reduced to reduce the amount of accumulated water, and the amount of waste water when reused can also be reduced to reduce waste. You can

Furthermore, by incorporating the strainer 9 on the most upstream side of the water supply source 1, foreign matter is removed from the water flowing to all the end channels. Therefore, each hot and cold water mixing tap 2
It is not necessary to incorporate a strainer in each of the inflow port portions of 5 and the local cleaning device 6, and the same applies to the automatic temperature control unit 14. Therefore, the structure of the faucet can be simplified and the number of parts can be reduced.

Further, in the water supply distributor 12, the hot water supply distributor 13, and the proper temperature distributor 15, a buffer unit 16 for preventing water hammer is provided in the passages from the respective hot water / water mixing plugs 2 to 5 to prevent water hammer. It may be incorporated as a mechanism. The buffer unit 16 suppresses a sudden stop of the flow in the flow path, that is, a water hammer that occurs when the valve is suddenly closed. As a structure thereof, as is known in the art, a structure in which a block that allows the volume of the internal flow passage to be variable by water pressure is held in the flow passage by a spring or the like can be adopted.

By providing such a buffer unit 16, even if the valve is rapidly closed after using the hot and cold water mixing tap 2 for a bathtub, for example, the water hammer phenomenon that occurs at this time is caused by the buffer unit 16. The vibration is suppressed and the propagation of vibrations to the flow paths toward the other hot and cold water mixing plugs 3 to 5 connected via the hot water and hot water distributors 12 and 13 is prevented. Therefore, even in the case where the hot water / hot water distributors 12, 13 and the appropriate temperature distributor 15 are connected to a large number of hot and cold water mixing taps, vibrations and abnormal noises in the pipes are prevented.

Further, the hot water supply pipe 13d shown by the broken line in the figure can be connected to the hot and cold water mixing tap 4 for the bathroom in which high temperature water is used less frequently. In this case, the hot and cold water mixing tap 4 may be of a type that has another connection port in addition to the connection ports for the water supply pipe 12c and the mixed water pipe 15a. The hot water supply pipe 13d is connected to the hot water side of the passage, and its valve can be operated by a dedicated handle separate from the operation handles on the water supply side and the appropriate temperature water side.

In this way, the hot water supply pipe 13d is connected to the hot and cold water mixing tap 4.
By connecting the above, not only can the hot water distributor 15 be used on the low temperature side, but also hot water can be discharged by switching the flow path to the hot water supply distributor 12 side. Therefore, it can be more suitably used when the mixed water is used in a wide temperature range from low temperature to high temperature.

FIG. 2 is a schematic view showing another example of the distribution unit 11.

The distribution unit 11 is provided with two automatic temperature control units 17 and 18 and is arranged in parallel with the water supply pipe 8 and the hot water pipe 9. These automatic temperature control units 17 and 18 have the same configuration as that shown in FIG. 1, and their own temperature settings can be made by the respective temperature setting units 17a and 18a.

Optimum temperature distributors 19 and 20 are provided downstream of the automatic temperature control units 17 and 18, respectively, and the respective flow paths are connected to the hot and cold water mixing taps at the ends as in the example shown in FIG.

Such automatic temperature control unit 17, 1
In the case where two 8's are prepared, the respective temperature adjustments can be set to 25 ° C. and 30 ° C., for example. Therefore, it is possible to supply hot water at two temperature values corresponding to the operating temperatures of the hot and cold water mixing taps at the end, and it can be suitably used for equipment suitable for hot water supply at these temperatures.

In the above embodiments, the automatic temperature control unit 14 is incorporated as a mixing section, but instead of this, for example, valves are provided at the inflow sections on the hot water side and the water side to open the openings of these valves. May be changed by manual operation to set the mixing ratio, or a mixing mechanism having a function similar to that of the hot and cold water mixing stopper may be used.

[0046]

According to the present invention, the piping system is assembled so that the hot water can be supplied at the temperature of the hot water according to the use condition of the water discharger at the end, so that it takes time and effort to adjust the temperature on both the high temperature side and the low temperature side. It is possible to quickly obtain hot water at the required temperature and improve usability, and at the same time, safety is improved because there is no hot water discharge in equipment that is used only on the low temperature side.

Further, water is supplied to each water discharge tool through a distributor.
Since it supplies hot water and supplies water at an appropriate temperature, fluctuations in the flow rate can be suppressed when using each of the water discharge tools individually or simultaneously with another,
It does not hinder usability. And since the pipe from the distributor to each spout can be provided independently,
It is possible to select the size of the pipe corresponding to the required flow rate for each water discharger.

Further, by incorporating a water stopcock in the flow path from the distributor to each water discharger, it is not necessary to provide a waterstopper in the water discharger, and a plurality of water hammer prevention mechanisms are provided. The occurrence of a water hammer phenomenon can be prevented even in a facility that uses a water discharger at the same time.

Further, since the temperature of the optimum temperature water can be changed by the set temperature adjusting means, it is possible to freely supply hot water corresponding to the use conditions, and it is possible to apply it to various facilities.

[Brief description of drawings]

FIG. 1 is a piping system diagram showing an outline of piping equipment of the present invention.

FIG. 2 is another example of the distribution unit, which includes two temperature control distributors.
It is the schematic which shows the example provided with one.

[Explanation of symbols]

1 Water Supply Source 2 Hot Water Mixing Plug 3 Hot Water Mixing Plug 4 Hot Water Mixing Plug 5 Hot Water Mixing Plug 6 Local Cleaning Device 7 Strainer 8 Water Supply Pipes 9 Hot Water Supply Pipes 10 Water Heater 11 Distribution Unit 12 Water Supply Distributor 13 Hot Water Distributor 14 Automatic Temperature Adjusting unit (mixing section provided with automatic temperature adjusting means) 14a Temperature setting section (set temperature adjusting means) 15 Optimum temperature distributor 16 Buffer unit (water hammer prevention mechanism) 17 Automatic temperature adjusting unit 18 Automatic temperature adjusting unit 19 Optimum temperature distributor 20 Optimum temperature distributor

Claims (6)

[Claims] 1. Water and hot water which communicate with and flow into a water supply pipe connected to a water supply source, a hot water supply pipe connected to a hot water supply source, and a flow pipe branched from these water supply pipe and hot water supply pipe. A mixing portion for mixing at a predetermined mixing ratio, and a mixed water pipe connected to the mixing portion, and the flow path end of at least one of the water supply passage pipe, the hot water supply pipe and the mixed water pipe, or Piping equipment that has a discharge port that guides these pipes and discharges water, hot water, or mixed water at the confluence end or the downstream of the combination. 2. The piping equipment according to claim 1, wherein the mixing section includes a mixing ratio adjusting means capable of adjusting a mixing ratio of water from the water supply pipe and hot water from the hot water supply pipe. 3. The pipe facility according to claim 1, wherein the mixing section includes an automatic temperature adjusting means for automatically adjusting a flow rate ratio of water and hot water according to a set temperature. 4. The piping facility according to claim 1, wherein the water supply passage pipe, the hot water supply pipe and the mixed water pipe are connected to the downstream side by a distributor that distributes to a plurality of independent flow passages. 5. The piping facility according to claim 1, wherein the distributor is provided with a water stop plug in each flow path to a downstream end of the flow path. 6. The piping facility according to claim 1, wherein the distributor is provided with a water hammer prevention mechanism in each flow path to the flow path end on the downstream side.