JPS5966651A - Storage type hot water supply device - Google Patents

Abstract

PURPOSE:To make it possible to carry out the control so that the user can set the drive starting time of heating means and the total quantity of hot water produced in a day and to enable arbitrarily varying the above setting without being limited by the capacity of the hot water storage tank. CONSTITUTION:When a time-timer adjuting switch 19 is used, and time setting and timer setting are carried out, main control means 17 stores them, and displays them on a time-timer indicator 18. When a quantity of hot water is set by a hot water quantity adjusting switch 20, a microcomputer 17 stores it. In this case, when it is assumed that the overall capacity of a hot water storage tank 1 is 200 liters, each of the capacities of a second thermistor 12 and downward is 50 liters, and a prest quantity of hot water is 300 liters, water in the entire hot water storage tank is heated up once. Thereafter, at a point in time when water reaches the second thermistor 12 by the water supply, the apparatus is again operated to subject water in the second thermistor 12 and downward to ''after-burning''. When this ''after-burning'' is carried out twice, hot water in a grand total of 300 liters can be supplied. Further, in a case where the quentity of water to be heated is decreased by the hot water supply and the like, an after burning heating operation is automatically started. When the grand total of the quantity of water to be initially heated and the quantity of water to be after-burnt reaches a set quantity of water to be heated, the heating operation is stopped to make it possible to set the quantity of hot water more than the capacity of the hot water storage tank.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a hot water storage tank with a heating means such as an oil burner and a heat exchanger, and controls the operation of the heating means and forced convection device with a timer. This relates to a hot water supply device that produces heated water. 0 Structure of conventional examples and their problems Generally, a hot water storage type hot water supply device is provided with a timer for operation, but the function of this timer is once a day. It was only for setting the start time of operation.
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However, with this type of product, the user has to manually turn off the heating means of the water heater every day, which requires labor and can cause problems if the user forgets to turn it off. There was a problem in that the pumping force did not stop, resulting in unnecessary boiling and turning movements.

Therefore, in order to solve this problem, in recent years, the user can freely set the driving start time as well as the driving start time. I'm thinking of something like a winter machine, or something that automatically shuts down after a certain period of time after it starts operating.

However, if you consider all the daily hot water supply steps of a typical user, □1.

■ The starting point for using hot water - the carving □ is approximately constant, but □
The time of day when you finish using the hot water varies depending on the day.

-The total amount of hot water used by a family per day is fairly constant depending on the family.

There is a characteristic that.

In view of these conventional problems and the hot water supply habits of general users, the heating means is started to operate, and the time and date of production are determined. The purpose is to provide hot water supply @ll#' that controls the total amount of hot water dispensed and all users.

Structure of the Invention The basic structure of the present invention to achieve the above object is to have a hot water inlet in the upper part and a water inlet in the lower part. Eh, the top.

The upper part of the hot water storage tank is connected to the lower part through a forced convection device such as a circulation pump and a connecting vibrator, and the heating means such as an oil burner installed on the upper part of this hot water storage tank and the heat generated by this heating means are used.・Reserve hot water in the evening.

The tank is equipped with a heat exchanger that exchanges heat with the water in the tank, and a plurality of temperature detectors such as thermistors are installed in the height direction of the hot water storage tank. The control means includes a main control device such as a microcomputer that has a timer function to determine the start of operation, a hot water amount determination and calculation function, and a changeover switch that allows the user to set the operation start time and the required amount of hot water.
The system is configured with two displays, etc. 0 - If the user sets the start time of the equipment and the amount of hot water required for that day in advance using the switch switch 2 display '2%, etc. , operation will start automatically, and if the set amount of hot water exceeds the hot water storage tank capacity, the insufficient amount of hot water will be refilled by following hot water supply, and when the set amount of hot water is reached, the device will start operating. It is possible to obtain the action of stopping the operation. As a result, the user can: Fully automatically obtain a fixed amount of hot water from a fixed time every day, and this is not limited by the capacity of the hot water tank, and the settings can be changed freely. There is.

Description of Examples.

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 is a longitudinal cross-sectional view of a hot water boiler, where 1 is a hot water storage tank;
A heat exchanger 2 is located at the upper part of the hot water storage tank 1 and is provided so as to pass through both ends of the hot water storage tank 1. One end of this heat exchanger 2 is an open end, and a burner 3 as a heating means is installed there. The other end is partially opened, and the burner 3 is inserted into the opening.
A chimney 4 and a chimney top 5 for discharging combustion waste gas are connected. In addition, a baffle plate (not shown) is provided inside the heat exchanger 2, and the combustion heat generated by the burner 3 is transferred to the outer periphery of the total heat exchanger 2. Heat the water. Reference numeral 6 indicates a water inlet provided at the top of the hot water storage tank 1, and reference numeral 7 indicates a water supply port provided at the bottom of the hot water storage tank 1. 8 is a forced convection device (hereinafter referred to as a circulation boiler) such as a circulation pump, and this circulation pump 8 is blocked by connecting pipes 9 and 1o that connect the upper and lower parts of the hot water storage tank 1.
mosquito,? The circulation pump 8 circulates water between the upper and lower parts of the hot water tank 1. .

11 is a heat exchanger 2. ? The first thermistor 12 located nearby and attached to the hot water storage tank 1 is the second thermistor located in the center of the housing 1, and this second thermistor 12 is the embodiment. Here, one is provided, but it is also possible to have multiple. 1.3 is the connection between the connecting pine 9 and the hot water tank 1, and the third one located near the section.
This is a thermistor.

Next, FIG. 2 is a block diagram showing the control circuit configuration.

14 is a remote control unit (remote controller), which receives the data signal M1
6, it is connected to the main body side control circuit 16. The remote control unit 14 is equipped with a microcomputer 1 serving as a main control means, and controls the main body of the device via a data signal line 15. 18 is a time and timer display; 19 is a switch for adjusting the time and timer; and 20 is a changeover switch for setting the amount of water;
is directly connected to. 21 is a shift register circuit, which stores the real data sent from the remote control unit 1°4, and outputs parallel data.022 is a latch circuit, which latches the parallel output of the soft register circuit 21. The output of the latch circuit 22 is
It is connected to a circuit 23, an analog multiplexer circuit 24 for selecting and taking in a plurality of analog signals, and an A/D conversion circuit 25. A burner control means 26 such as a relay is connected to the dry nozzle circuit 23 to control the burner 3.

``The analog multiplexer circuit 24 includes first, second, and so on.
The third thermistor 11, 12, 13 is input, and the one selected by the output data from the latch circuit 22 is output, and becomes one input signal of the comparison circuit 27.

Approximately 8 bits of digital data is supplied from the latch circuit 22 to the DA converter circuit 25, and the reference voltage at the voltage level corresponding to the digital data becomes the other input signal of the comparator circuit 27.

The comparison circuit 27 compares the two manual forces and transmits the determination result to the main control means 17.

Next, the operation of this embodiment will be explained.

First, when the time and timer settings are made by the user using the time/timer adjustment switch 19, the lifetime control means 1a stores them and displays them on the time/timer display 18. In addition, the switch 20 for adjusting the amount of hot water
When the hot water amount is set, the microcomputer 17 memorizes this. Here, the total capacity of hot water storage tank 1 is 2001,
The capacity below the second thermistor 12 is 501, and the set amount of hot water is 3ool.To achieve this set amount of hot water, first, boil the entire hot water storage tank once, and then,
When hot water reaches the second thermistor 12 due to hot water supply, the device is operated again to "reheat" the water below the second thermistor 12.

If this "reheating" is performed twice, hot water of general rule 3001 can be supplied. The above operation will be explained based on the drawings.

The microcomputer 17 operates as a clock from the time set by the user, and when the timer reaches the time set by the user, the data signal line 15 is passed through and the shift register circuit 21 is connected to the device. The operation signal is sent. This is then latched by the latch circuit 22, and further by the driver circuit 23. The operation of the burner 3 is started via the burner control means 26. At this point, there is usually water in the hot water storage tank, so the first step is: The second and third thermistors are all sensing low temperatures. Then, these temperatures are converted into resistance values, A-D converted by the comparison circuit 2 through the analog multiplexer circuit 24, and constantly input to the microcomputer 17 via the data signal line 16.
Surveillance is being carried out.

When the burner 3 starts operating, the water in the hot water storage tank above the burner 3 is heated, and first the temperature of the first thermistor 11 rises to -boiling! ll temperature TWA increases towards x. This situation is shown in Figure 3. Eventually,
This state continues and the first thermistor 11 becomes TWA.
P: When the temperature rises at Tau4, which is ΔL1 degree lower than P:, the main control means 17 detects this and the circulation pump 8 starts operating through the same route as when the burner starts operating. (A
Point) By the action of the circulation pump 8, water from the lower part of the hot water storage tank 1 is supplied to the upper part, the temperature of the upper part is slightly lowered, and a layer of hot water is pushed down below the burner 3. In this way, the first thermistor 11 becomes further Δ2 than Tau.
When the temperature drops at a low temperature, the main control means 17
detects this and stops the operation of the circulation pump 8. (B
Point) In this way, the circulation pump 8 is repeatedly operated and stopped, and the layer of hot water in the hot water storage tank 1 is gradually pushed downward, and as the second. The third one? 7. Mr. 1.2
, 13's temperature increases by one. Eventually, a layer of hot water will be supplied to the circulation pump 80 inlet. And the first
The temperature of the thermistor □ increases due to the combustion heat of the burner 3 even as the ring pump 8' (7) continues to operate.
Finally, the boiling temperature TWAK was reached, and the microcomputer 17
detects this and completely stops the operation of bath 3, circulation, and pump 8, completing the boiling of the entire hot water tank. (
0 points) At this point, the microcomputer 17 has memorized the set amount of hot water, 5oole, so it waits for the "reheat" operation of the rest. Next, use the chopsticks to supply hot water. When this is done, the vows of the third person, Mister' and '3, are lowered, and
The temperature of the second valley mister 12 then decreases.

When the temperature of this 26th thermistor 12 reaches the temperature T shim K which is Δt6 degrees lower than TOFF, the microcomputer 1 recognizes this and again controls the bayona 3 and circulation pump 8. , 2nd Sami Konyu 12 '5
．． o It ``t'' rekindling °゛゛゛. Then, the first siren reaches 'r゛wAK', and the first ゛゛ rekindling is completed. ,lB,(point at,).

This “reheating” operation has been completed twice. 1.
, the main control means 17 detects that the installation has been completed, and does not operate the equipment thereafter.
There are a thousand. By arranging the thermistor and using the control q75, the amount of hot water can be set to 6. It can be done arbitrarily like O,,l, and it becomes possible.
,.

Effect of the invention ,,.

As described in 2 above, according to the present invention, the total amount of hot water used by the water heater in a day can be reduced.7. This can be done easily by operating a switch, so you can get the amount of hot water that matches the season, even across the beak, and this set amount of hot water is not controlled by the capacity of the tank. In addition, since it is possible to set the amount of hot water that matches the general hot water supply pattern of each user, once you have set the settings, for example, from then on, you will not have to worry about the user's hands. So, is it necessary? It is possible to supply hot water every day without waste. Furthermore, “rekindling °゛”
In the evening, the hot water is stored at the bottom of the tank. 5. Hot water can always be drawn from the upper part, so the name of the hot water is no? Even if the amount consumed is small, it has the effect of providing the same specifications as a water heater □ with a large hot water storage tank capacity.

□ ・4. Brief explanation of the drawings Figure 1 is a vertical cross-sectional view of a hot water boiler according to an embodiment of the present invention, ・Figure 2 is a control block diagram of the hot water boiler, and Figure 3 is the operation of the hot water boiler. It is a sequence diagram. □・
゛ ・ 1... Hot water storage tank, 2... Heat exchanger,
３・・・・・・ノ(-su(heating means), ８・・・・・・
Circulation pump (forced convection device), 9, 1o...... Connection valve, 11, 12゜13... Thermistor 1.1T... Microcomputer (main control means) ), 1 white... Time/timer display, 19
・・・・・・Time-tire-adjustment switch.

20...Hot water amount selection switch.

Name of agent: Patent attorney Toshi Isamu Nakao, and 1 other person Figure 1

Claims (2)

[Claims] (1) Provide a hot water inlet at the top and a water inlet at the bottom, =
A hot water storage tank in which the upper part and the lower part are connected via a forced convection device such as a circulation pump and a connecting pipe, a heating means and a heat exchanger installed in the upper part of the hot water storage tank to heat the water in the hot water storage tank, A plurality of temperature detectors are provided in the height direction of the hot water storage tank and detect the amount of heated water and the temperature of the hot water in the hot water storage tank in multiple stages, and the heating means and the forced convection device are operated by the signals from the temperature detectors. a changeover switch connected to the main control means and capable of setting the amount of hot water above the capacity of the hot water storage tank; and a timer capable of setting the start time of the heating operation; After starting the initial heating operation and heating the entire capacity of one hot water storage tank, if the amount of heated water decreases due to hot water supply etc., the reheating operation will automatically start (~, the total amount of initial heating water amount and reheating heating water amount) A hot water storage type hot water supply device characterized in that the heating operation is stopped when the heating water amount reaches a set heating water amount, thereby making it possible to set the hot water amount in a hot water storage tank capacity device. (2) By performing the pre-arranged heating operation when the temperature detection element at the lower part of the hot water storage tank has decreased in temperature,
The hot water storage type water heater according to claim 1, characterized in that hot water can be drawn continuously from the upper part of the hot water storage tank.