JPS58133550A - Control device for storage type electrical hot water heater - Google Patents

Abstract

PURPOSE:To reduce the loss of radiating heat and to improve the power supply efficiency by a method wherein a hot water quantity setting means is provided so that only the required quantity of hot water is produced and the power supply load is distributed uniformly on the hot water heaters through a central control device. CONSTITUTION:An operating means 8(8') for the storage type electrical hot water heater 5(5') calculates the amount of heat to be stored on the base of a value set by a constant hot water quantity setting means 6(6') or a temporary hot water quantity setting means 7(7'), an operating menas 11(11') calculates the amount of heat of the remaining hot water on the base of the quantity and the temperature of the remaining hot water detected by means 9(9') and 10(10') and an operating means 12(12') calculates the required amount of power supply time on the base of the difference between the amount of heat detected by the means 8(8') and the amount of heat detected by the means 11(11'). Further, a signal transmitting means 13(13') for transmitting to the central control device 15 a signal designating the required amount of power up supply time and a power supply control means 14(14'') for the hot water heater 5(5') are provided in the hot water heater 5(5') and signal receiving means 16, a power supply time distribution control means 17 and a central transmitting meand 18 are provided in the central control device 15. That is, the signals disignating the required amounts of power supply time for the hot water heaters 5 and 5' transmitted from the means 13 and 13' are received by the menas 16, the powe supply hours are properly assigned to the hot water heaters after totalizing the signals by the means 17 and the power supply hours at which the hot water heaters are started are directed from means 18 to the means 14 and 14'.

Description

[Detailed Description of the Invention] This invention is a central;W4 control device for multiple hot water storage type electric water heaters in certain areas and cities! This article concerns a control device that controls the duration of energization to a Je heating element.

Figure T:A1 is a configuration diagram of a typical hot water storage type electric water heater.

FIG. 2 shows the main electrical circuit diagram of a conventional hot water storage type electric water heater.

In the above, (1) is the hot water storage tank, (2) is the heating element, (
Reference numeral 31 is an automatic knitting layer adjuster, and (4) is an automatic knitting layer adjuster.

Next, if you use late-night electricity, which is generally done, t-I
To explain its effect on the HJ, there are two heating elements (21 is a heating element that boils water from 8℃, which corresponds to the water temperature in winter, to about 85℃ in the middle of the night). Condition is preset.Also, automatic TM degree adjuster (31
V has a normally closed contact, and when the water in the hot water storage tank (11) reaches about 85°C, the contact opens and the contact is connected to the heating element 121.
It is configured to stop tM*n, and the hot water storage tank (
The 11 yen bath is filled with hot water at 8°C every morning.

However, the amount of hot water used is not necessarily the same, and varies greatly from half to half. Especially if you have to take a bath.
It is a factor that greatly influences the use of IT.

On days when you don't have a lot of fun, it's also a good idea to leave more than half the amount of hot water in your tank.

Therefore, if there is any remaining hot water, the electricity will start turning on at midnight when the electricity is turned on.9. It will go up in a short time. For this reason, in the past, the power load was concentrated for several hours immediately after the start of 2-day power supply, and the original purpose of late-night power, which was to equalize the negative power supply, was not achieved, and the power load rate was also low. At the same time, the Ilf tank (11
This had the disadvantage of increasing heat loss due to natural heat radiation from the air and heat radiation from hot water stagnant in the pipe.

This invention was made based on the above points.

Each of the multiple hot water storage type blood water heaters is equipped with a device that can detect A-positive conditions and a device that can preset the usage amount -m to prevent the water from boiling up more than necessary, and to control medium heat. By evenly distributing the energized load r by the device, the above-mentioned drawbacks of the conventional device can be overcome.

The present invention will be explained below based on the control block diagram shown in FIG. In FIG. 3, the heating element +21. is placed at t5+, +51. (21 Shows the hot water type acid water heater main body with a hot water heating system, each with a hot water storage tank 111. [11] Constant hot water volume setting device t6+, +61 and 2 for presetting all hot water lids for the next day to be stored in hot water storage tank 111) Temporary mJjk setting device for presetting one-time use soap lid +71. +
71, and the steady hot water lid setting device ft1l, [61 or directly to the temporary hot water setting (7j).

(Calculator A (8+) that calculates the thermal calories of hot water to be stored in the hot water storage tank (1) from the set value set in step 71.

(81 and the remaining hot water 1i in the hot water tank fi+, +11!
: Remaining hot water lid sensor for detecting +91. (91, the same hot water storage tank (II, Yamauchi's 'A@ fan degree), and each of these sensors + 91.191. uυ).

According to uavc, a calculation unit Btll for calculating the residual wrinkle heat calorie from the frozen 'A violet and the residual sapon anchor degree, (I
ll and 2 rules 5t 'p d 'di A 18+, (
8+7! : Arithmetic unit B (111, (111, (111, (111) Calculator (1, IJ'a and this arithmetic unit C11 =, A transmitter (13+, 131 and a trace control device uI,
It has a circle.

u5.1 is a medium fire control device, which is equipped with a receiver u671 time scheduler uj+ and a medium fire transmitter a8Jt-, and receives information about the location and safety of each machine sent by the transmitter (131゜u, 1. Receive the signal 'of the time' with the receiver low and allocate 1 hour H
Using the control device α7, we tallied up the power-on time of the total fall and got 4! This system performs centralized control of the energization time by allocating the energization time of the machines as appropriate and giving an indication of the energization time to each machine's power supply and equipment through the central distribution system.・
Next, the specific operation will be explained using symbols and formulas.

Sumire Hijoyo setting *Plate t61. (61 and provisional hot water amount setting device (71゜(7)) The amount of hot water used is set regularly by the constant hot water setting device L61.+61, but even if you do not take a bath the next day or use If not, the emergency hot water jit is operated and set by operating the provisional hot water amount setting device (71, +71), and the next day it operates again to automatically return to the value set by the steady hot water setting device t61. (61). It is something.

First, the steady hot water amount setting table t61. of each water heater 15+, +51. ．． 16+ or ゛l fixed hot water amount setting device t71
．． The set value of the amount of hot water used for the next day input to 171'
kv liter.

Hot water TMT - ℃, residual hot water immediately after midnight power supply time -
If the detected value of the sensor (9) is V lima, tor, and the detected value of the remaining hot water 4 counterfeit sensor αO is T2℃, then tA calculator AIB
+.

(81 is.

Kl = (Tl - t)XV (Kcal
), which performs calculations for hot water storage tank +II, 11+
Calculate 1 for the heat calories that should be stored in the body. Also, the top 4 vessels Bα11.゛(III is.

K, = (T2-t)Xv(Ke
al) σ) It is performed at the top, and the heat calories remaining as leftover water are evaporated for two days.

Furthermore, Mei ca'a, a2J.

It calculates the heat calories for each electric water heater (5) from the actual heat calories that should be applied, excluding the heat calories for the remaining hot water.

(This is a book that calculates the required energization time H (hr) to 51 (I KWH = 860 Kcal). Here,
t is a constant and 2 For example, at least 1M per year in the area
It is set to degrees, average temperature, etc. Maew is a heating element +21
．． (Represents the rated power consumption (k,) of 2+.

Then, each required energization time H (hr) determined by the calculator CD and 1ii when power is turned on late at night after
The power load is distributed so as to be averaged between 11 p.m. and 7 a.m. the next day, and a signal is sent from the central transmitter α to the energization controller 141 of each machine. Q4JIfc is included. For each aircraft, the 0 gradient is determined by the signal from the central feeder 4B (181), which traces the heating element +21.t2+ for 111 hours.

If 200 main water heaters in a certain area or in Mansitan can each get the specified amount of electricity t by being energized for 3 hours, then 100 units will be energized from 11:00 PM to 2:00 AM the next morning, and the other 100 units will be energized the next morning. The electricity is distributed from 2:00 to 5:00 to keep power peaks as low as possible.

As explained above, in the present invention, each of the plurality of hot water storage type electric water heaters is equipped with a positive setting means that can not only set the constant hot water temperature but also set the temporary hot water amount as appropriate. It has the effect of boiling only the amount of hot water required by the user, reducing the amount of remaining hot water and reducing various heat losses, making maintenance *' cheaper. In addition, the central control unit performs centralized control so that the power load is averaged, which alleviates peak power loads.

It also has the effect of completely improving power transmission efficiency.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of two general storage type electric water heaters installed side by side, Fig. 2 is an electric circuit diagram of a conventional storage type electric water heater, and Fig. 3 is a system diagram of the system according to the present invention. A block diagram is shown. ill, 111 is the hot water tank, t2+, +21 is the heating element, (51, +51 is the electric water heater body, (6+
, (61 is the steady water amount setting device. +71. +71 is the provisional hot water amount setting HL (8+, t8
+, till, tiIJ, (1211u2JF'
i multiplier, +91. +91 is the remaining warehouse sensor, u
ti, scream is tA-force sensor, 0. ■ is the transmitter, u gradient, 0 small is the energization control device, U51 is the central control device, (
161 is a receiver, αη is a time allocation controller, and u81 is a central transmitter. Agent Makoto Tameno - Figure 1 "Continued amendment, !F (Method) June 1982, 2111 13 To the representative Hitoshi Katayama of the person making the amendment Part 6, Specification to be amended 7, Details of the contents of the amendment Engraving of calligraphy (no change in content)

Claims (1)

[Claims] In the valleys of a plurality of f & hot water leakage devices, there is a hot water lid setting means for presetting the regular use-f that can be used in the hot water storage tank, and also for one-time use only. The use of the stored hot water setting means for presetting the hot water τ, and the calculation of the mjtt to be stored from the setting value set by the setting means or the setting means for setting the hot water. The operator fiA, the residual hot water M+! output means for detecting the residual hot water jlt' in the hot water storage tank, the residual hot water temperature detecting means for detecting the residual hot water temperature in the hot water storage tank, and the valley detecting means VC. Therefore, calculation means B calculates the residual hot water thermoelectricity from the residual water temperature based on the produced residual l#, and calculation means C calculates the FfT energization time from the 6N means A and the wheat of calculation means B.
and. A transmitting means for transmitting the time calculated by the calculation means C to the central control device as a signal, and a receiving means are provided, as well as a receiving means. Central 11n equipped with time 1 output distribution control means and central Nobuko stage
A J control device is provided, and the receiving means receives the signal 1 of the recommended energization time of each machine transmitted by the transmitting means, and totals the entire energization cost time from the 2-hour distribution control means VC. A control device for a hot water storage type electric water heater, characterized in that the power supply time is controlled by appropriately allocating the energization time of each machine and giving an energization time instruction from the medium heat transmitting means to the energization control means of each machine. .