JPS58224253A - Calorific value controller - Google Patents

Abstract

PURPOSE:To reduce a feed hot water quantity at the time of hot water supply at a high temperature so that there is no overflow even if the temperature is reduced through cold water supply after hot water supply, by controlling supply of hot water when a calorific value for hot water supply arrives at the calorific value calculated by a supply hot water quantity and a temperature to be required beforehand. CONSTITUTION:A calorific value detector 136 for hot water supply is constituted with a flow detector 126 of hot water from a heat source 101 for hot water supply, a temperature detector 124, a calorific value arithmetic unit 139 calculating the calorific value by signals of both the detectors, an integrating calorific value arithmetic unit 140 integrating the calorific value calculated by the calorific value arithmetic unit 139 and an integrating flow arithmetic unit 138 calculating the integrating flow by a signal of the flow detector 126. Then, a calorific value setting device 137 for hot water is constituted with a temperature setting device 131 setting up a temperature of supply hot water, an integrating flow setting device 132 setting up a supply hot water quantity and a calorific value arithmetic unit 141 calculating the calorific value by signals of both the setting devices. A flow controller 122 is controlled in an opening or closing state by a deflection between signals of the calorific value detector 136 for supply hot water and the calorific value setting device 137 for supply hot water.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water supply heat amount control device in a water heater that supplies high temperature hot water from a heat source.

Conventionally, this type of heat quantity control device is constructed as shown in FIG. That is, in FIG. 1, 1 indicates a heat source, and this heat source 1 is composed of a hot water storage tank 3 which is insulated with a heat insulating material 2, and a heat exchanger 4 installed inside the hot water storage tank 3. Further, the heat exchanger 4 is connected with a heat medium transfer pipe 6 from the collector 5 via a circulation pump 7, and is also connected with a return pipe 8. Reference numeral 9 indicates a controller. Signals from a high temperature side sensor 10 provided on the collector 5 and a low temperature side sensor 11 provided on the lower side of the hot water storage tank 3 are input to the controller 9 to control the circulation pump 7. There is. From the top of the hot water storage tank 3, a hot water supply pipe 12
is connected to the bathtub 14 via a faucet 13. A flow control valve 15 is disposed at the tip of the faucet 13, and the flow control valve 16 is composed of a main body 16 and an integrated flow rate setting dial 1. When the user sets this integrated diversion setting dial 17 to the mouse for which hot water is to be supplied, the main body 1
6. The internal valve is returned to the open state. When hot water is supplied in this state, the athlete's foot inside the main body 16 rotates, and this rotation rotates the integrating flowmeter setting dial 17 through a gear. The valve is closed and hot water supply is stopped. (Not shown) 18 indicates a city water faucet to the bathtub 14, and 19 indicates a pressure reducing valve 2.
0 is a water supply pipe arranged at the bottom of the hot water storage tank 3.

We will explain the operation of the conventional example configured in this way.
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The heat collected in '1ll-5 is stored in the hot water storage tank 3 via the heat exchanger 4, and the temperature inside the hot water storage tank 3 is raised to a constant temperature (for example, 65° C.). Next, when hot water is to be supplied to the bathtub, the clearing flow rate setting guide and dial 16 of the flow rate control valve 14 is set to the desired amount of hot water to be supplied (for example, 170 t), and the valve in the main body 15 is opened.

Next, when the faucet 13 is opened, hot water supply to the bathtub 14 is started. - When hot water is supplied at the set amount in this way, the valve in the main body 15 is closed and the hot water supply is stopped.

In such a conventional example, hot water at a constant temperature cannot be obtained because the temperature of the hot water in the hot water storage tank 3 of the heat source 1 depends on the weather. Therefore, the flow rate control valve 14 controls the amount of hot water (for example, 1
7 ot) when hot water is supplied, especially when the temperature in the hot water storage tank 3 is high (for example, 66 degrees Celsius), the temperature in the bathtub 14 is
5℃ hot water is supplied at 170℃. Since it is impossible to take a bath in such a state, it is necessary to open the faucet 1T and supply water to bring the inside of the bathtub 14 to around 40'C.

Therefore, in some bathtubs, when the faucet 17 is opened and water is supplied, the bath overflows, and energy obtained from solar heat is wasted, which goes against energy conservation.

The present invention solves these conventional drawbacks, and even when the hot water supply temperature from the heat source side is high, only the amount of hot water suitable for bathing is supplied to the bathtub, and the faucet 17 is turned off. The present invention provides a hot forging control method that eliminates overfloat when water is supplied.

In order to achieve this object, the present invention includes a hot water flow rate detector, a temperature detector, a heat amount calculator that calculates the amount of heat based on the signals from both of the detectors, and integrates the amount of heat calculated by the heat amount calculator. It has a hot water supply heat amount detection device composed of an integral hot water calculation unit and an integral flow rate calculation W unit that calculates the cumulative flow rate based on the signal of the flow rate detector, and a temperature setting device that sets the hot water temperature; The hot water supply heat amount setting device includes an integrated flow rate setting device that sets the hot water supply amount, and a heat amount calculation device that calculates the heat amount based on the signals from the double membrane meter, The flow control valve is opened and closed due to signal deviation.

With this configuration, hot water supply is controlled when the amount of heat for hot water supply reaches the amount of heat calculated in advance from the required hot water temperature and temperature. This eliminates overflow even when the temperature is lowered.

Next, an embodiment of the present invention will be described based on FIG. That is, in FIG. 2, 101 indicates a heat source,
This heat source 101 is composed of a hot water storage tank 103 that is insulated with a heat insulating material 102, and a heat exchanger 104 that is housed inside the tank 103. In addition, the heat exchanger 104
l. A hot soot feed pipe 106 is connected from the collector 105 via a circulation pump 107, and a return pipe 108 is also connected. Reference numeral 109 indicates a controller, and signals from a high temperature side sensor 110 provided on the collector 106 and a low temperature side sensor 111 provided on the lower side of the hot water storage tank 103 are input to the d-controller 109 to control the circulation pump 107. ing. A hot water supply pipe 112 is connected to the bathtub 1 from the second part of the hot water storage tank 103 via a heat amount control device 113.
There is piping to 14, -t. Reference numeral 115 indicates a city water faucet to the bathtub 114, and reference numeral 116 indicates a water supply pipe provided with a pressure reducing valve 117, which is piped to the lower part of the hot water storage tank 103.

FIG. 3 is a cross-sectional configuration diagram of one embodiment of the M fine control device 113, where 118 is an inlet piped and connected to the hot water storage tank 103 side, and 119 is an outlet. Exit 119
On the side, a guard motor 120, which is a valve driver, is connected to a flow rate control valve 122 via a sealing O-ring 121.

A temperature sensor 124 sealed with an O-ring 123 is inserted into the flow path 125 further upstream, and a flow rate sensor 126 is provided further upstream. This flow rate detector 126 has a configuration in which a water wheel 127 inserted into a flow path 125 rotates around a shaft 128.
A permanent magnet 128 is fixed to the upper part of 27. 12
Reference numeral 9 denotes a magnetoresistive element, which is attached to the atmosphere side and detects the rotation of the permanent magnet 128 that rotates once within the flow path 125.
Determine the function to be used. On the other hand, 130 is an operation panel, and this operation panel 130 is provided with a temperature setting device 131 for setting the hot water supply temperature and an integrated flow rate setting device 132 for setting the amount of hot water supply. 133 is a control box, and 134 is an electric signal line.

FIG. 4 shows a block diagram of an embodiment of the present invention. The heat quantity control device 113 includes a flow rate control device 135 composed of a flow rate control valve 122 and a geared motor 120, and a hot water supply system. It is composed of a heat amount detection device 136 and a hot water supply heat amount setting device 137. The hot water supply heat amount detection device 136 includes an integrated flow rate calculator 138 that calculates an integrated flow rate from a signal from the flow rate detector 126;
The system includes a heat amount calculator 139 that calculates the amount of heat based on the signal from the temperature detector 12.4, and an integrated heat amount calculator 140 that integrates the amount of heat determined by the heat amount calculator 139. Further, the hot water supply heat amount setting device 137 includes a temperature setting device 131. and an integrated flow rate setting device 132, and a heat amount calculator 141 that calculates the heat amount from the signals of both of them.

The hot water supply heat amount detection device '136 and the hot water supply heat amount detection device are removed. Also, the signals of the integrated flow rate setter 132 and the integrated flow rate calculation 1i 138 are compared, and based on the difference, the signals are transmitted to the flow rate control valve 12 via the geared motor 120 as described above.
2 is controlled.

Next, to explain the operation in the two-part configuration with reference to FIGS. 2 to 4, the heat collected by the collector 106 due to daytime solar heat is transferred to
03, and a constant temperature (
For example, the temperature can be raised to 65°C.

Next, when supplying hot water to the bathtub 114, the operation panel 130
The temperature setter 131 and integrated flow rate setter 132 are set to the desired hot water supply conditions (for example, 17OL hot water supply at 40° C.). Given these conditions, the amount of hot water supplied is 6-J, 6800
Kcal is determined by the calorie calculator 141 in the hot water supply heat loss setting device f137. Hot water supply starts,
The flowing liquid and temperature of the hot water being supplied are detected by the flow rate detection i: 17126 and the leakage detection device 124,
Based on these detection signals, the integrated heat amount is determined by the integrated heat amount calculator 140 of the hot water supply heat amount detection device It136. Since the calculation results of the hot water supply heat amount setting device 137 and the calculation results of the hot water supply heat amount detection device 136 are constantly compared, the hot water supply amount is 6800Kca, 4, that is, 65
When the temperature reaches 106° C., the amount of heat supplied becomes equal to the setting, and as a result, the guard motor 120 operates, the flow rate control valve 122 is closed, and the hot water supply is completed. When taking a bath next time, by supplying water from the city water faucet 115, it is possible to fill the bath with water at approximately 4°C and 170/-.

Next, when the temperature of the hot water storage tank 103 is low (for example, 30°C)
This section explains how to supply hot water. Now, even if the temperature setting device 131, 14 and integrated flow setting device 132 of the operation panel 130 are set to the hot water supply condition (17 oz hot water supply at 40'C in the row),
Similarly to the above, in order to supply hot water of 6800 Kcal at the temperature of the hot water heater, the amount of hot water to be supplied is 226 tons. Since the amount of hot water is constantly compared, when the amount of hot water reaches the set value of 170t, the gear engine 120 is operated to close the flow control valve 122, and the hot water supply is completed.

In this case, the bathtub 114 is flushed using a bathtub (not shown) or the like.

In this way, in this embodiment, when the hot water supply temperature is low, control is performed using the hot water supply amount, so that overflow can be prevented.

As is clear from the above description, the heat amount of the present invention; Compare the signals of the hot water heating setting device that calculates the amount of heat from the signal, and calculate the uneven difference between them.1.To control the flow rate control device. If the preset
Since the hot water equivalent to the hot acid calculated from the hot water temperature and amount of hot water is supplied, even if the high temperature hot water is supplied to the temperature suitable for use, the hot water from the bathtub will be oat (
- Famous for its extremely energy-saving heat control method that allows hot water from the heat source to be effectively heated without flowing.

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing a conventional heat amount control device, FIG. 2 is a system diagram showing an embodiment of the heat amount control device of the present invention, and FIG. 3 is a cross section showing an example of the configuration of the heat amount control device. 4 are block diagrams showing control of the heat amount control device. 101...Heat source, 122...Flow rate control valve (flow rate control device), 124...Temperature detector,
126...Flow rate detector, 131...Temperature setting device, 132...Actual flow rate setting device, 135...
...Flow meter control device, 136...Hot water supply heat amount detection device, 137...-Hot water supply heat amount setting device, 13
8.--Accumulated flow rate calculator, 139... Calorie amount calculator, 140... Accumulated calorie amount calculator, 141
・−・・Calorific value calculator. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Fig. n Fig. 2 10 Fig. 3

Claims (2)

[Claims] (1) A hot water supply device that supplies hot water from a hot water heat source via a flow rate control device is provided, and a heat amount calculator that calculates the amount of heat based on the signals from the hot water flow rate detector, temperature detector, and rain detector. , a hot water supply heat amount detection device comprising an integrated heat amount calculator that integrates the heat amount calculated by the heat amount calculator, and an integrated heat amount calculator that calculates the integrated flow rate based on the signal of the flow (6 detectors). , - a temperature setting device for setting the power and hot water temperature;
The hot water supply heat amount setting device includes an integrated flow meter setting device for setting the hot water supply amount, and a heat amount calculation device that calculates the heat amount based on the signal from the fixed setting device, A heat amount control device, characterized in that the flow meter control device is controlled to open and close based on a deviation of a signal. (2) Claims that open/close/control the flow rate control device based on the deviation of the signals of the hot water supply heat amount detection device and the hot water supply heat amount setting device 6, or the deviation of the signals of the integrated flow rate calculator and the integrated flow layer setting device. The heat amount control device according to item 1.