JPS6362013A - Control method for floor temperature of floor heating system - Google Patents

Abstract

PURPOSE:To attain a fully automatic floor heating system in response to the external movement like the weather conditions, open air temperatures, etc. by deciding the setting level of floor temperatures based on the data on the past weather conditions and open air temperatures as well as the weather conditions and open air temperatures measured in a heat regenerating mode. CONSTITUTION:The open air temperature are measured by an open air temperature sensor 4 and a measuring circuit 5. These measured temperatures are stored in the temperature memories RAM31-3n via an A/D converter 7. The data stored in these memories are integrated by an arithmetic circuit 8 every time new data are added and the integrated value is sent to an open air temperature mode deciding part 9 to be compared with the data on the open air temperature stored in an open air temperature memory 1 so that a specific open air temperature mode corresponding to said integrated value is decided. Then the decided mode A is sent to a floor temperature deciding circuit 10 and compared with the data on the floor temperature stored in a floor temperature memory 2. Thus an optimum floor temperature is decided in the mode A and a floor temperature controller 11 is adjusted based on said optimum floor temperature. Then the floor temperature is controlled to an optimum level.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a floor temperature control method for a floor heating system. It is particularly suitable for controlling ffi floor heating systems.

(Prior Art) A heat storage type floor heating system stores heat on the floor before a room is used, and heats the room with the stored heat when the room is used.

Since it takes time for this heat storage type floor heating system to store heat, it is usually necessary to predict how long it will take for the floor to reach a specified temperature, and to The power is turned on to the heater to start heating the same amount of time in advance.

In this case, the injection of -1J is turned ON@OFF by a timer using a preset bed temperature set value as an index.

However, the heating period is generally a long period of 4 to 6 months or more, during which the climate changes from late autumn to early winter, and from harsh winter to early spring. Therefore, in order to achieve comfortable heating, it is necessary to adjust the temperature setting value of the temperature controller once or twice a month or per season depending on each climate.In this case, the floor temperature should be adjusted to the standard temperature. It is set based on calculations or based on experience in heating operations over the past several years.

However, the climatic conditions during actual heating operation are usually different from past experience values, so in order to achieve comfortable heating, the set temperature must be changed from time to time.However, in general, daily adjustments are not made. If this is not done carefully, it often results in overheating or underheating.

In the case of overheating, heating energy is wasted and it is uneconomical, and in the case of underheating, you have to endure the cold.Therefore, we wanted to avoid the trouble of changing the temperature setting every day and prevent underheating. Usually, the set temperature is often set high, which increases power consumption and is uneconomical.

Additionally, the heating characteristics and heating time of underfloor heating are affected by the outside temperature. Therefore, it is difficult to obtain comfortable heating by measuring only the indoor temperature and controlling the temperature.Therefore, in the past, the outside temperature was measured instantaneously during heating, and the set value of the floor temperature was changed based on the measurement result. It is also being considered.

(Problems with conventional technology) However, in a floor heating system, it takes time for the temperature to change, so even if you change the floor temperature setting every time the outside temperature changes, the floor temperature will not follow the change and change the setting. There is a time delay before the temperature reaches the temperature.

This problem is most noticeable in floor heating systems with large heat storage capacity.

(Purpose of the Invention) The purpose of the present invention is to predict the climate and outside temperature during heating using data on the climate and outside temperature before heating, and supplement that data with the actual climate and outside temperature during heat storage. To provide a floor temperature control method capable of obtaining optimal heating every day even when the climate or outside temperature changes, and reducing waste of energy used for floor heating to reduce running costs.

(Means for solving the problem) The floor temperature control method of the floor heating system of the present invention measures the past outside air temperature at a certain period within a specific time, integrates the measured temperature value for each period, The relationship between the integrated value and the outside temperature mode (Fig. 2) is classified into outside temperature memory 1 (:Jf
Also, the relationship between each outside temperature mode and the optimal floor temperature for that mode is classified into oil spray and stored in the floor temperature memory 2 (Figure 1), and the heating Previously, the outside air temperature was measured under the same conditions as the past outside air temperature detection conditions, the measured temperature was stored as a temperature value in the temperature memories 31 to 3n, and the stored temperature values were integrated to calculate the integrated value and the outside air temperature. The outside temperature mode is determined based on the past outside temperature data stored in the memory 1, and the optimum floor temperature for that outside temperature mode is determined from the outside temperature mode and the floor temperature data stored in the floor temperature memory 2. is determined, and the temperature W is determined based on the determined temperature.

(Action of invention) The operation of the present invention will be explained based on FIGS. 1 to 4.

The outside air temperature sensor 4 shown in FIG. Measure temperature. This measurement is performed every time a specific periodic signal is transmitted from the timer circuit 6.

The measured outside air temperature is converted from analog to digital by the A/D conversion circuit 7 and stored in temperature memories (RAM) 31 to 3n. These memories 31 to 3n contain 240 data (6
It is designed to memorize 1 day's worth once every minute, and 24
When new data is further input from the outside air temperature detection section 7 while data of 0 is stored, the data is sequentially shifted and the oldest data is discarded.

The 240 data stored in the temperature memories 31 to 3n are processed by the arithmetic circuit 8 every time new data is added.
a'n, and the integrated value is sent to the outside air temperature mode determining section 9. Here, the integrated value is compared with the outside temperature data (Figures 2 and 3) stored in the outside temperature memory l to determine which outside temperature mode it corresponds to, and the determined outside air temperature mode is output. be done. In this case, the determination as to which outside temperature mode applies is made by comparing the integrated value with the lower limit value of the integrated value in the outside temperature memory 1 (FIG. 2).

For example, if the a calculation value is 1800, it is determined that the outside temperature mode is A.

The output outside temperature mode A is sent to the floor temperature determination circuit 1O, where it is compared with the floor temperature data (relationship between the outside air temperature mode and the optimum bed temperature) stored in the floor temperature memory 2, and the outside temperature mode is determined. The optimum bed temperature at A is determined.

The bed temperature regulator 11 is adjusted based on the determined temperature, and the bed temperature is automatically controlled by M.

Note that each block in FIGS. 1 and 2 operates according to instructions from the timer circuit 6.

(Embodiment of the invention) FIG. 1 shows an embodiment of the invention. Reference numeral 12 in FIG. 1 is an outside air temperature detection section, which includes an outside air temperature sensor 4, a temperature measuring circuit 5. It is composed of an A/D converter 7, and measures when a specific periodic signal is transmitted from the timer circuit 6.

31 to 31 are temperature memories, for example, RAM is used as this memory. This memory has a large number of memories, and is designed to sequentially store new information input in synchronization with the synchronization signal from the timer circuit 6 in 31 to 3n, and discard old information.

8 is an arithmetic circuit which integrates each time new information is stored in the memories 31 to 3n.

1 is an outside temperature memory, which stores the relationship between the outside temperature mode and the lower limit value of the a calculation value as shown in FIG.

This data is obtained as follows. A certain number of cycles 101 within a specific time (for example, 24 hours In before the start of heat storage)
(for example, every 6 minutes), calculate the measured temperature value by m for each cycle, and calculate each integrated value as shown in Fig. 2, for example, A-
Classified into H outside temperature mode. Several relationships between this integrated value and the outside temperature mode are stored. The outside temperature mode in FIG. 2 is divided into five ranks A to H, and when the total value is large, that is, when the climate is generally high, it is determined to be a high rank, and when it is low, it is determined to be a low rank.

Reference numeral 9 denotes an outside temperature mode determination unit, which compares the integration accumulated by the calculation circuit 8 with the lower limit value of the integration stored in the outside temperature data memory 1 shown in FIG. 2, and determines which outside temperature mode it corresponds to. I'm trying to decide whether or not.

2 is a floor temperature memory, which stores the relationship between each of the outside temperature modes ranked A to E in Figure 2 and the optimal floor temperature for each of those outside temperature modes (Figure 5). ing.

Reference numeral 10 denotes a floor temperature determination circuit, which determines the optimum temperature corresponding to the new outside temperature mode by comparing and determining the new outside temperature mode input from the outside temperature mode determining section 9 and the floor temperature data stored in the floor temperature memory 2. This is to determine the bed temperature.

Reference numeral 11 denotes a floor temperature mff1 device, which is automatically adjusted based on data output from the floor temperature determination circuit IO.

(Experimental Example) FIGS. 5 and 6 are control examples of a heat storage type floor heating system using the method of the present invention in the case of late-night power usage.

Figure 5 shows an example of an experiment in October, where the outside air temperature remains extremely low. FIG. 5 shows the change in room temperature when the engine was operated at the floor temperature set value determined based on the results of measuring the outside air temperature. Since the outside temperature is not so low in October, once the floor temperature is raised to the floor temperature set value, the stored heat will heat the room for 48 hours, and there is no need to heat the floor during that time.

Figure 6 shows an example of the experiment in February. In both Figures 5 and 6, the room temperature during the hours of use is almost the same, but there are differences in the changes in floor temperature. By selecting the optimum value for the floor temperature, stable indoor conditions can be maintained in different climates.

(Effect of the invention) The present invention has the following effects.

(1) Since the floor temperature set value is determined by using data such as past climate conditions and outside air temperature, and taking into account the climate and outside temperature at the time of heat storage, Fully automatic floor heating that adapts to external dynamics such as temperature becomes possible. This reduces overheating and underheating, and provides comfortable floor heating.

(2) Fully automatic floor heating that adapts to the climate and outside temperature is possible, so there is almost no wastage of energy (electricity) used for heating, saving energy and significantly reducing running costs. Saved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the control method of the present invention, FIG. 2 is a detailed explanatory diagram of FIG. 1, and FIG. 3 is an explanatory diagram showing the relationship between the integrated value of outside air temperature and the outside temperature mode according to the control method of the present invention. , Figure 4 is an explanatory diagram showing the relationship between outside temperature mode and optimal bed temperature, Figure 5
FIG. 6 is an explanatory diagram of an experimental example of the present invention. l is outside temperature memory 2 is floor temperature memory 3a to 3n is temperature memory

Claims (1)

[Claims] Measuring past outside air temperature at regular intervals within a specific time,
The measured temperature value is integrated every cycle, and the relationship between the integrated value and the outside temperature mode is classified into several ways and stored in the outside temperature memory 1, and each outside temperature mode and the optimal floor temperature for that mode are stored. The relationships between the temperatures are classified into several types and stored in the floor temperature memory 2, and before heating, the outside air temperature is measured under the same conditions as the past outside temperature detection conditions, and the measured temperature is stored in the temperature memory 3_1 as a temperature value. ~3n, the stored temperature values are integrated, the outside temperature mode is determined based on the integrated value and the past outside temperature data stored in the outside temperature memory 1, and the outside temperature mode and the floor temperature memory are 2. A floor temperature control method in a floor heating system, characterized in that the optimum floor temperature in the outside temperature mode is determined from the floor temperature data stored in 2, and the temperature is adjusted based on the determined temperature. .