JPS5922139B2 - hot water heating hot water system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a centralized heating and hot water supply system that uses a hot water pot having a plurality of hot water storage tanks in combination with a filter.

Currently, in the heating and hot water supply systems commonly used, hot water paths for heating and hot water are separated, and hot water for heating forms a circulation path from the hot water pot through each heating device and back to the hot water pot. However, hot water for hot water supply is sent from a hot water kettle or hot water storage tank to each hot water supply point, consumed at that point, and then drained into the sewage system.

Therefore, in a small-scale case like a general household, etc., it is difficult to understand, but in a large-scale case, such as a central heating and hot water supply system in a hotel or condominium, the amount of hot water consumed in bathtubs and showers, etc., and the heating of hot water are The consumption of the supplied fuel was considerable, and improvements were desired.

The present invention has been developed in view of the above, and is designed to reduce the consumption of hot water and fuel by filtering relatively clean wastewater and reusing it for hot water supply.

Hereinafter, the configuration of the present invention will be described based on examples.

(Embodiment 1) Reference numeral 1 denotes a hot water pot, which mainly consists of a hot water storage tank 2 for heating and a hot water storage tank 3 for hot water supply that is integrally provided adjacent to the hot water tank 2. A main pot 5 equipped with a gun-type heavy oil burner 4 for heating hot water is installed at the bottom, and a stainless steel or copper heat exchanger 6 is installed at the top, as well as a heat exchanger 6 for circulating each heating device. A heating outgoing pipe 7 and a heating selection pipe 8, which are hot water paths for heating, are provided in communication with the heating hot water storage tank 2.

9 is a partition wall between the hot water storage tank 2 for heating and the hot water storage tank 3 for hot water supply.

10 is a water tank installed at the top of the facility,
Water supply tank 11 that stores water to maintain an appropriate water level at all times
The water is automatically pumped up from the water via the pump 12.

13 is a hot water tank, which is installed at the same position as the water tank 10, and is connected from the water outlet pipe 13' to the hot water pot 1.
Relatively lukewarm hot water is supplied to a large number of bathtubs 15 from the water inlet 14 of the heat exchanger 6 in the heating hot water storage tank 2 and another water outlet pipe 13'75).

The slightly warm water supplied from the water outlet pipe 13' to the water inlet 14 passes through the heat exchanger 6 and reaches the hot water supply port 14', exchanging heat with the hot water in the heating hot water storage tank 2, resulting in a temperature of 50 to 75°C. Hot water is discharged from the pouring pipe 16 and stored in the hot water storage tank 3 for hot water supply.

Then, if necessary, from the hot water supply tank 3 to the hot water supply pipe 1
7, hot water is supplied as hot water to bathrooms such as bathtubs 15, showers, washers, etc. (not shown) at each hot water supply point, and to washstands 18.

Reference numeral 19 denotes a filter, which circulates the filtered water of the filter tank 21 consisting of a primary filter tank 21' and a secondary filter tank 21θ.
It is mechanically filtered by running for 4 hours.

The primary filtration tank 21 functions as a bathtub wastewater receiving tank that receives bathtub wastewater from the bathtub drain pipe 20, and the wastewater is sterilized by receiving a sterilant from an attached automatic sterilizer dispenser 34 according to the amount of wastewater. After that, it passes through the filter 19 and enters the secondary filtration tank 2.
Enter 1'.

In addition, a submersible pump 22 equipped with a dust remover 35 is provided in the primary filtration tank 21', and the filtered water in the tank is transferred to the filter 19.
I am sending it to

Reference numeral 23 designates a pump installed in a filtrate water pumping pipe 24 for pumping filtered hot water from the secondary filtration tank 21' to the hot water tank 13.

25 and 26 are water supply pipes that supply water from the water tank to the washbasin 18 or the secondary filter tank 21', respectively.

Reference numeral 27 denotes a miscellaneous water tank which receives waste water such as hot water used in the washbasin 18, forms a series of channels with a miscellaneous water filter tank 28 and a miscellaneous water tank 29, and supplies flushing water to the toilet bowl 30.

31 is a pump for pumping water from the miscellaneous water filtration tank 28 to the miscellaneous water tank 29, and 32 is a bypass of the bathtub drain pipe 20 to the sewage.

Next, the operation and effects of the present invention with the above configuration will be described.

The clean water consumed in the system of the present invention is only that supplied to the washbasin 18 and that supplied to the secondary filtration tank 21' as the insufficient filtered hot water. It has the feature of significantly saving water consumption.

First, the water that has entered the secondary filtration tank 21/' as a shortage is mixed with the filtered hot water of the secondary filtration tank 21/', and the mixed hot water is distributed to the communication section according to the amount of water in the secondary filtration tank 21'. 21#
The water is transferred to the primary filtration tank 21' as appropriate, and mixed with the filtered bathtub waste water.

In addition, the filtered hot water mixed in the primary filtration tank 21' is
The water is sent to the filter 19 via the submersible pump 22, where it is mechanically filtered and then returned to the secondary filtration tank 21', forming a circulation loop.

Therefore, the shortage of bathtub drainage water is supplemented from the tap water, and the primary filtration tank 21', the filter 19, and the secondary filtration tank 21 are
The water is circulated to remove dust and sterilize, resulting in clean hot water.

On the other hand, this filtered hot water is pumped from the secondary filtration tank 21θ1 to the hot water tank 13 through the filtrate water pumping pipe 24 by the pump 23, and is automatically controlled to maintain a constant amount of water.

For example, the use of hot water starts at one or several locations,
When hot water is supplied to the location, the hot water is supplied to the bathtub 15 or washbasin 18 through the hot water supply pipe 17.

Then, the hot water in the hot water storage tank 3 for hot water supply of the hot water pot 1 decreases, and when the sensor detects the shortage of hot water storage, water is injected from the hot water tank 13 into the heat exchanger 6 via the water outlet pipe 13'. .

The injected water exchanges heat with the hot water in the heating hot water storage tank 2 to become hot water of around 65°C, which is automatically supplied to the hot water storage tank 3 to compensate for the shortage.

On the other hand, if relatively lukewarm hot water is required, it is supplied to the point of use through the water outlet pipe 13" and the hot water tank 13" is used.
When the amount of water stored in the secondary filtration tank 21 decreases, it is automatically replenished from the secondary filtration tank 21, and the system continues to operate.

In addition, the hot water used in the hot water supply area is drained from the bathtub 15 to the primary filtration tank 21', from the washstand 18 to the general water tank 27, and then to the primary filtration tank 21'. The remaining water is filtered and used again as hot water to complete the above-mentioned circulation.

The water drained into the miscellaneous water tank 27 is filtered in the miscellaneous water filtration tank 28, purified to some extent, and then sent to the miscellaneous water tank 29 located at the top by the pump 31.

The miscellaneous water tank 29 stores flushing water for the toilet bowl 30, but since this flushing water does not need to be completely clean, rain water is also stored and used, and the used water is discharged to the sewage system. be done.

The hot water in the heating hot water storage tank 2 of the hot water pot 1 lowers its own water temperature by supplying heat to each heating device and the heat exchanger 6 for hot water supply provided at the top, or lowers the water temperature. is detected by a sensor installed in the hot water storage tank 2 for heating, and the burner 4 of the main boiler 5 is automatically ignited so that the ignition is always within a certain range. When the water temperature decreases, the water temperature in the adjacent heating hot water storage tank 2 also decreases and the burner 4 is automatically ignited, so that the temperature of hot water for hot water supply can be adequately controlled.

(Example 2) In the heating and hot water supply system shown in Example 1, all hot water is supplied by mixing filtered water and tap water, so it is unsuitable for drinking or kitchen use. However, there is psychological resistance to such uses.

From this point of view, this embodiment shows an example in which a hot water supply route that can be safely used for drinking, etc. is separately provided up to the washbasin 18, and other aspects are the same as in the first embodiment.

The structure will be described below, focusing on the different points.

First, a hot water storage tank for hot water supply is newly installed in the hot water pot 1 to form a hot water storage tank 3' for auxiliary hot water supply, and in addition, a heat exchanger 6 of the same type as the heat exchanger 6 of the first embodiment is installed in the upper part of the hot water storage tank 2 for heating. A heat exchanger 6' (the capacity may be smaller than the heat exchanger 6) is provided, and a water outlet pipe 1 is connected from the water tank 10 to the water inlet 14' at the bottom of the heat exchanger 6'.
0' is provided, and a hot water pouring pipe 16' for pouring hot water from the hot water supply port 14'F at the top to the auxiliary hot water storage tank 3' is provided.

A hot water supply pipe 17' is arranged from this auxiliary hot water storage tank 3' to each washbasin 18, and the hot water supply pipe 17' shown in the first embodiment is
A bathtub 15, a shower, and a sink (not shown) are also provided.

This is the partition wall between hot water storage tank 2 for heating in 9th race and hot water storage tank 3 for auxiliary hot water supply.

In addition, a drain tank 33 with an automatic temperature adjustment water supply device is installed in the middle of the water outlet pipe 13 leading from the hot water tank 13 to the bathtub 15, and the water overflowing from the bathtub 15 is transferred from the water tank 10 through the water outlet pipe 10'. The water is automatically taken in as needed and mixed with hot water from a hot water tank 13 that is automatically supplied to lower the temperature and automatically adjust the temperature.

Then, relatively low-temperature hot water is supplied to the bathtub 15, shower, and shower via the water outlet pipe 13'.

Next, the functions and effects of the embodiment having the above configuration will be described.

Hot water supply related to bathtub 15, filtration and reuse of waste hot water, and toilet bowl 3
The system related to washing water to 0 is completely the same as in Example 1, so the explanation will be omitted.

The unique effect of this embodiment is the newly installed hot water storage tank 31 for auxiliary hot water supply.
This is used to supply hot water and cold water to the washbasin 18 using tap water.

In other words, when hot water is dispensed from the sink 18, the hot water pipe 17
Hot water is supplied from the auxiliary hot water supply hot water storage tank 3' through '.

When the amount of stored hot water decreases, it is detected by a sensor and water is automatically passed from the water tank 10 through the water outlet pipe 10' to the water inlet 14', and while passing through the heat exchanger 6', the water reaches the set temperature. After that, hot water is poured into the side hot water storage tank 3' through the hot water supply port 14 and the hot water pouring pipe 16' to constantly supplement the consumed amount.

Therefore, the hot water supply system is completely separated into two systems: one for supplying hot water to the bathtub 15 and the other for supplying hot water to the washbasin 18.

In the first embodiment, the water that overflows from the bathtub 15 and flows into the sewer is refilled by leading it from the water tank 10 to the secondary filtration tank 21'. Even if the water is collected, the water temperature drops due to the effect of cold tap water during filtration, and the water cannot be stored in the hot water tank 13 as high-temperature hot water. A tank tank 33 is provided.

The tank 33 is supplied with hot water from the hot water tank 13 and cold water from the clean water tank 10, and is automatically operated to maintain the set water amount and water temperature.

In this case, the insufficient water that overflows in the bathtub is normally replenished from the clean water tank 10 to the drain tank 33 and not to the warm drainage system from the bathtub 15 as shown in the first embodiment.

However, clean water is only replenished from the clean water tank 10 via the clean water supply pipe 26 only when the system starts operating and when a large amount of water overflows for some reason and the amount of drainage in the filtration tank 21 is insufficient. After the system is operated, the water supply pipe 26
It can be said that there is no supply of clean water to the hot water drainage system via.

Therefore, the temperature of the hot water in the hot water tank 13 is always kept high.

This means that the temperature of the hot water supplied to the heat exchanger 6 is high, and therefore the amount of heat required to raise the temperature is small, making it very efficient.

In addition, as in Example 1, the Karan tank 33 is omitted,
It goes without saying that low-temperature hot water may be supplied directly from the hot water tank 13.

The functions and effects of the present invention described above can be summarized as follows.

First, by using a hot water pot that has a hot water storage tank for hot water supply (and a hot water storage tank for auxiliary hot water supply) integrally attached to and separate from the hot water storage tank for heating, the hot water storage tank for hot water supply (and the hot water storage tank for auxiliary hot water supply) The heat radiation from the system has been reduced, and the thermal efficiency of the system has been significantly improved compared to the conventional case where a separate hot water storage tank is provided.

Second (・Similarly, by providing a hot water storage tank for hot water supply (and a hot water storage tank for auxiliary hot water supply) adjacent to each other, the temperature of hot water in the hot water storage tank and the temperature of hot water in the hot water storage tank for heating are correlated. Because of this, it is possible to easily control the temperature of hot water in the hot water storage tank (and sub-hot water storage tank) and heating hot water storage tank by simply operating the main boiler, making it possible to supply hot water at a stable water temperature, and to control the temperature of hot water from the hot water storage tank. Since hot water is supplied directly, a stable amount of hot water can be guaranteed.

Third, the heat exchanger and water storage tank are made of stainless steel or copper, ensuring completely clear hot water.

Fourth, since the used heated waste water is filtered and regenerated and heated to provide all or part of the hot water supply, the consumption of clean water and fuel has been significantly reduced.

In the test facility, it was confirmed that it saves resources, saves more than 35% of water, saves more than 50% of fuel, and is effective in saving energy and energy.

Fifth, if the water tank is configured to replenish the overflow from the tap water, the water temperature of heated waste water can be maintained high, so the temperature of the hot water for heating can be set lower, and the fuel for system operation can be set lower. can save more money.

As described above, the resource and energy saving effects of the system of the present invention are extremely significant, and an economical heating and hot water supply system can be provided.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing an overview of a hot water heating and hot water supply system according to a first embodiment, and FIG. 2 is a diagram showing an outline of a hot water heating and hot water supply system according to a second embodiment. 1...Hot water pot (2 tank type), 1'...Hot water pot (3 tank type), 2...Hot water tank for heating, 3...
... Hot water storage tank for hot water supply, 3'... Hot water storage tank for auxiliary hot water supply, 4 ... Burner, 5 ... Main pot, 6
, 6'... Heat exchanger, 7... Heating outgoing pipe, 8... Heating selection pipe, 9, 9'...... Partition wall, 10... ...Water tank, 10'...Water pipe, 11...Water water receiving tank, 13...
・Hot water tank, 13', 13''----Outlet pipe,
14.14'-...Water inlet, 14', 14...
... Hot water inlet, 15 ... Bathtub, 16, 16'.
...Hot water pouring pipe, 17°11'...Hot water pipe,
18... Wash basin, 19... Filter machine, 2
0... Bathtub drain pipe, 21... Filtration tank,
21'...Primary filtration tank (bathtub wastewater receiving tank), 2
1'...Secondary filtration tank, 24...Filtered water pumping pipe, 25.26...Water supply pipe, 2T...
・Miscellaneous water tank, 28... Miscellaneous water filtration tank, 29...
...Miscellaneous water tank, 30...Toilet bowl, 33...
...Karan tank, 34...Automatic sterilizer dispenser, 35...Dust remover.

Claims (1)

[Scope of Claims] 1. In a hot water heating and hot water supply system equipped with a water tank, a hot water tank, a filtration device, and a hot water pot, heat is transferred from the water tank that stores water from the city water supply to the filtration tank, washroom equipment, and hot water pot. A water supply system that supplies water to each exchanger, a water supply system that supplies water from a hot water tank that stores filtered water from a filtration tank to the heat exchanger of the hot water kettle and bathtub equipment, and a hot water storage tank that connects the main kettle and heat exchanger to the heating water tank. a hot water supply system that supplies hot water from the heat exchanger of the hot water pot to the hot water tank from the hot water storage tank, which is provided within the hot water tank and is integrally provided with a hot water storage tank adjacent to the hot water storage tank for heating; A hot water heating and hot water supply system consisting of a hot water supply system that supplies hot water to the equipment and washroom equipment, a drainage system that guides wastewater from the bathtub equipment to a filtration tank, and a filtration device that filters and cleans the wastewater stored in the filtration tank. 2. Hot water heating and hot water supply according to claim 1, in which the hot water tank for hot water supply of the hot water kettle and the heat exchanger are each single, and the water supply equipment from the tap water is provided only to the filtration tank and washroom equipment. system. 3 The hot water storage tank for hot water supply of the hot water kettle consists of two tanks, and a heat exchanger for water supply from the hot water tank and a heat exchanger for water supply from the clean water tank are separately provided in the heating hot water storage tank, and each heat exchange A hot water system that supplies hot water from the hot water tank to two hot water storage tanks, a hot water system that supplies hot water to the bathtub equipment via the hot water storage tank that stores hot water from the hot water tank, and a hot water system that stores hot water from the water tank. The hot water heating and hot water supply system according to claim 1, comprising a hot water supply system that supplies hot water to washroom facilities via a hot water storage tank.