JP2003166752A - Control method and device for heat exchange heat storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control method and device for a heat exchange heat storage, having an increased efficiency of control of heat exchange and heat storage. <P>SOLUTION: Fluid (8) heated through heat exchange with heat generated by a heat source (a drive source 2) is stored in a tank (20, a hot water storage tank 20A) to store heat. By using a flow rate, a time, and a temperature of fluid flowing out from the tank, and a temperature of fluid with which the tank is filled or which returns to the tank, a quantity of heat is calculated, and according to a computed quantity of heat, a quantity of exchange heat of heat exchange is controlled. Efficient heat exchange and heat storage control is realized. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange heat storage control method and a heat exchange heat storage device using a drive source such as an engine for driving a generator, a fuel cell or the like as a heat source.

[0002]

2. Description of the Related Art Conventionally, there is known an exhaust heat utilization system for recovering exhaust heat obtained from a drive source such as an engine for driving a generator and utilizing the recovered exhaust heat. This system uses cooling water or waste heat recovery water that flows in the water jacket of the drive source as a heat medium, and uses the heat absorbed by this heat medium. The heat absorbed by this heat medium is stored, or the heat is used to heat hot water or the like to supply hot water.

[0003]

By the way, in the conventional exhaust heat utilization system, as shown in FIG.
The cooling water 202 absorbs the heat generated by
02 through the circulation path 204 to the heat exchanger 206 and water 210 on the side of the hot water storage tank 208 through the circulation path 212 and the pump 214 to the heat exchanger 206, thereby exchanging heat between the cooling water 202 and the water 210. Done, cooling water 2
The water 210 is heated by the heat of 02 and stored in the hot water storage tank 208.

The temperature of the water 210 on the side of the hot water storage tank 208 is detected by temperature sensors 216, 218, 220, and the amount of heat storage is calculated by the detected temperature and the amount of water on the side of the hot water storage tank 208. In this case, heat is generated as long as the drive source 200 is operating. Therefore, when the pump 214 is operated, heat exchange is automatically performed and heat is stored.
When the heat storage of 1 reaches the limit point, a simple control method of stopping the operation of the pump 214 or setting an operation time in advance has been adopted.

Therefore, the hot water storage tank 208 may run out of hot water, and it is necessary to increase the volume of the hot water storage tank 208 in order to prevent hot water run-out.
As a result of increasing the heat dissipation area of 08, heat dissipation loss increases,
There was a problem that economic heat exchange and heat storage were impaired.

[0006] Therefore, an object of the present invention is to provide a heat exchange heat storage control method and a heat exchange heat storage device which realize high efficiency of heat exchange and heat storage control.

[0007]

In the heat exchange heat storage control method of the present invention, a fluid (8) heated by heat exchange with heat generated by a heat source (driving source 2) is stored in a tank (20, hot water storage tank 20A). In accordance with the heat quantity, the heat treatment for accumulating and storing heat, the flow rate of the fluid flowing out from the tank, the time, the temperature, the processing for calculating the heat quantity using the temperature of the fluid to be supplemented or returned to the tank, and the heat quantity And a process for controlling the amount of heat exchanged in the heat exchange.

Here, the fluid cools the heat source, for example,
A cooling medium, which may be liquid or gas, water,
Liquid or gas such as heating water can be used. In this case, when the fluid is not only circulated but also flows out from the tank to the outside and is used for other purposes, it is necessary to make up for the lacking fluid in the tank or the like. Then, in the calculation of the amount of heat, the temperature of the fluid to be supplemented or the fluid to be returned is used as calculation information in addition to the flow rate of the fluid flowing out.

Therefore, if the required heat quantity is calculated by using the flow rate, time, temperature and the temperature of the supplementary fluid as the calculation information, and the exchange heat quantity of the heat exchange is controlled in accordance with the necessary heat quantity, efficient heat generation can be achieved. Exchange and heat treatment can be performed.
In this case, the control of the heat exchange amount includes either the heat amount control or the heat exchange time control, or both the heat amount control and the time control.

In the heat exchange heat storage control method of the present invention, the second fluid (16, hot water 16A) is heated by the heat of the first fluid (8) heated by the heat of the heat source (driving source 2). The heat exchange process and the second fluid tank (20, hot water storage tank 20
A) heat storage heat treatment for accumulating and storing heat in A), processing for calculating heat quantity using the flow rate, time, temperature of the second fluid flowing out from the tank, and temperature of the fluid to be filled in the tank,
And a process for controlling the processing time of the heat exchange process according to the heat quantity.

Here, the first fluid may be, for example, a cooling medium for cooling the heat source, and may be liquid or gas. Further, the second fluid may be a gas as well as a liquid such as tap water or heating water. In this case, when the second fluid is used by flowing out from the tank to the outside, the tank needs to be supplemented with the fluid. Therefore, in calculating the amount of heat, the second outflow
Other than the flow rate of the fluid, the temperature of the fluid to be filled in the tank is used as the calculation information.

Therefore, if the required heat quantity is calculated by using the flow rate, time, temperature and the temperature of the supplementary fluid as the calculation information, and the processing time of the heat exchange processing is controlled in accordance with the necessary heat quantity, it is efficient. Heat exchange and storage heat treatment can be performed.

Further, the heat exchange heat storage control method of the present invention is a heat exchange process for heating the second fluid (16) by the heat of the first fluid (8) heated by the heat of the heat source (driving source 2). A heat treatment for accumulating the second fluid in a tank (20, a hot water storage tank 20A) to store heat; a process for calculating a heat amount using the circulation flow rate, time, and temperature of the second fluid; Accordingly, a process for controlling the processing time of the heat exchange process is included.

In this case, the second fluid is used by circulating it to a heating load or the like. In this case, the second fluid circulates through the heating load and returns to the tank. Therefore, in the calculation of the required heat amount, the flow rate, time, temperature of the second fluid flowing out from the tank, the temperature of the second fluid returning to the tank, and the like, the flow rate, time, and temperature of the second fluid are used as calculation information. Used.

Therefore, the flow rate of the circulating fluid, the time,
Efficient heat exchange and heat storage can be performed by calculating the required heat quantity using the temperature and the like as the calculation information and controlling the processing time of the heat exchange processing according to the necessary heat quantity.

In the heat exchange heat storage control method of the present invention, the processing time is set according to a necessary heat quantity obtained by subtracting the heat quantity from a set heat quantity. For example, when the amount of heat is set in advance by the tank capacity or the like, the required amount of heat is obtained by subtracting the amount of heat from the set amount of heat, so the processing time of the heat exchange process is set according to the required amount of heat.

In the heat exchange heat storage control method of the present invention, the processing time is set according to a required heat quantity obtained by subtracting the heat quantity from a set heat quantity for each predetermined period. In this case, by setting the amount of heat for each predetermined period, that is, for each season, and subtracting the amount of heat used from this amount of heat, it is possible to obtain an efficient required amount of heat according to the predetermined period.
If you set the heat exchange processing time according to this required heat quantity,
More efficient heat exchange and storage heat treatment can be performed.

In the heat exchange heat storage control method of the present invention, the operating time of the heat source is controlled according to the required heat quantity. That is, it is possible to control the processing time of the heat exchange processing by controlling the operating time of the heat source.

Further, the heat exchange heat storage device of the present invention comprises a heat source (drive source 2) for generating heat and a first heat exchange means (heat source) for heating the first fluid (8) with the heat of the heat source. Exchange part 4)
And the heat of the first fluid causes the second fluid (16, hot water 16
Second heat exchange means (heat exchanger 10, 10) for heating A)
A), heat storage means (tank 20, hot water storage tank 20A) for storing and storing the second fluid heated by the second heat exchange means, and the heat storage means and the second heat exchange means A circulation path (14) for circulating a second fluid, and a flow rate, a time, a temperature of the second fluid flowing out from the tank, a fluid to be filled in the tank, or a second fluid returning to the tank. A control unit (control unit 3) for calculating the amount of heat using the temperature and controlling the operating time of the heat source according to the amount of heat is provided. That is, with such a configuration, each heat exchange heat storage control described above can be realized, and efficient heat exchange and heat storage heat treatment can be realized.

In the heat exchange heat storage device of the present invention, the control means includes a storage means (5) in which a heat quantity is set in advance, reads a set heat quantity stored in the storage means, and uses the heat quantity used from the set heat quantity. The operating time of the heat source is controlled according to the required heat quantity obtained by subtracting. That is, by storing an arbitrary set amount of heat in the storage means, the required amount of heat is obtained by subtracting the amount of heat from the set amount of heat, it is possible to control the operating time of the heat source according to the required amount of heat, An efficient heat exchange process can be realized.

In the heat exchange heat storage device of the present invention, the control means stores the heat quantity preset for each season in the memory means, reads the heat quantity from the memory means, and subtracts the used heat quantity from the heat quantity to obtain the heat quantity. It is characterized in that the operating time of the heat source is controlled seasonally according to the required heat quantity. That is, by storing the set heat amount for each season in the storage means, the required heat amount can be obtained by subtracting the heat amount from the set heat amount for each season. Therefore, the control of the operating time of the heat source is performed according to the required heat amount. It can be performed every time, there is no heat loss in the high temperature season, and the shortage of heat storage in the low temperature season can be resolved.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below with reference to the examples shown in the drawings.

FIG. 1 shows a first embodiment of a heat exchange heat storage control method and a heat exchange heat storage apparatus of the present invention. In this embodiment, a drive source 2 such as an engine that drives a generator is used as a heat source. This heat source includes this kind of drive source 2
Besides, a fuel cell that produces exhaust heat, a burner that produces combustion heat by burning fuel gas, kerosene, or the like may be used.

A control unit 3 is provided as a control means for controlling the start / stop of the drive source 2.
It can be composed of a microcomputer or a personal computer equipped with OM, RAM, CPU, etc. In this embodiment, a storage means 5 composed of ROM, RAM, etc. is provided, and this storage means 5 has an operating time. An arbitrary amount of heat for controlling the temperature is set. Further, the drive source 2 is provided with a cooling means such as a water cooling jacket as a first heat exchange means. In this embodiment, this is configured as the heat exchange section 4, and a circulation path 6 is formed as a first flow path, and a first fluid 8 such as cooling water as a heat medium is circulated in this circulation path 6. . In this circulation path 6, a heat exchanger 10 as a second heat exchange means and a pump 12 as a pressure feeding means for the fluid 8 are installed.

A circulation passage 14 is connected to the heat exchanger 10 as a second passage separated from and independent of the circulation passage 6, and the heat exchanger 10 and the second fluid 16 are circulated in the circulation passage 14. A pump 18 for making it work and a tank 20 as a heat storage means for storing heat by the fluid 16 are installed. For the pump 18, for example, a DC motor whose rotation speed is easily controlled is used, and a control output for realizing a desired operation pattern is added from the control unit 3 which is the rotation control means. Further, although not shown, the heat exchanger 10 is provided with, for example, a tubular portion having a cross-sectional area larger than the pipe diameter on the circulation path 14 side, and a pipe body through which the fluid 8 flows independently of the fluid 16 in the tubular portion. For example, the heat exchange is performed by providing a spiral tube that can obtain good heat exchange. The arrow a indicates the flow direction of the fluid 8, and the arrow b indicates the flow direction of the fluid 16.

In this case, the tank 20 stores the fluid 16 and performs hierarchical heat storage in which the temperature gradient increases from the lower layer portion to the upper layer portion. Therefore, the stored fluid 24 is withdrawn from the bottom portion of the tank 20, The fluid 16 having a high temperature is supplied above the tank 20 and to the upper layer side of the stored fluid 24. Since such a temperature of the stored fluid 24 is set for each layer of the tank 20, in this case, a plurality of zones Z ₁ , Z ₂ , Z ₃ , and Z ₄ are set, each zone Z ₁ , Z ₂ ,
Temperature sensors 261, 262, 263 are provided as means for detecting the temperature of each of Z ₃ and Z ₄ . These detected temperatures are added to the control unit 3 which is also an arithmetic control unit.

In the case of this embodiment, the tank 20 is provided with the flow path 2 for taking out the stored fluid 24 from the tank 20.
8. A flow passage 30 for filling the fluid 16 from the outside is formed in the tank 20, and the flow-out fluid 1 flows in the flow passage 28.
6, a flow rate sensor 32 is provided as a means for detecting the flow rate per unit time, and a temperature sensor 34 is provided as a means for detecting the temperature of the fluid 16, and the flow path 30 stores the fluid 16 to be supplemented in the tank 20. A temperature sensor 36 is provided as a means for detecting the temperature. For example, the fluid 16,
If the stored fluid 24 is tap water, the heated tap water can be used for general hot water supply or the like.

Next, the heat exchange heat storage method will be described. Since the heat exchange section 4 is heated by the exhaust heat of the drive source 2 as a heat source, if the fluid 8 is made to flow through the heat exchange section 4 by the pump 12. The process of absorbing the heat of the drive source 2 is performed.
The fluid 8 heated by this treatment flows to the heat exchanger 10 by the pump 12 together with this heating treatment.

Here, when the pump 18 is operated,
The fluid 16 from the stored fluid 24 in the tank 20 is the heat exchanger 1
The fluid 8 is circulated to 0, and during this circulation, heat exchange processing is performed between the fluid 8 and the fluid 16, and the fluid 16 is heated by the heat of the fluid 8. The heated fluid 16 flows to the upper layer side of the stored fluid 24 in the tank 20, and the heat received by the fluid 16 is stored in the tank 20 together with the fluid 16. Further, the zones Z ₁ , Z ₂ , Z ₃ , Z _{4 of} the tank 20
The temperature of the stored fluid 24 for each of the temperature sensors 261, 262,
The detected temperatures are individually detected at 263, and the detected temperatures are added as calculation information to the control unit 3 which is also calculation means.

The stored fluid 24 in the tank 20 can flow out from the upper layer side to the outside through the flow path 28, and its flow rate is detected by the flow rate sensor 32 and its temperature is detected by the temperature sensor 34. To be done. Further, when the fluid 16 is supplemented from the outside through the flow path 30 into the tank 20, the temperature thereof is detected by the temperature sensor 36. The detected flow rate and the respective detected temperatures are added as calculation information to the control unit 3 which is also calculation means.

Here, the fluid 16 flowing out from the tank 20
Is L and the outflow time is t, the integrated flow rate Lm
= L × t, the temperature of the fluid 16 flowing out is To,
The inflow amount of the fluid 16 to be filled in the tank 20 is calculated by the integrated flow rate L
Assuming that the temperature of the inflowing fluid 16 is Ti, the heat quantity Q is

[0032]         Q = L × t × (To-Ti) = Lm × (To-Ti) (1)

It becomes That is, this heat quantity Q is
The heat loss amount lost from the heat storage amount of the heat amount Q is set as the required heat amount Qs, and the heat amount Q can be compensated by performing heat exchange processing to obtain the necessary heat amount Qs. That is, since the operation time of the drive source 2 and the pump 18 is the time of the heat exchange process for controlling the heat exchange amount, the drive source 2 and the pump 18 are operated for the time required to obtain this heat amount Qs, that is, the integrated time. If operated, the heat exchange amount can be obtained. For example, drive during a time when the actual heat load is likely to occur,
If operation is continued while there is a heat demand, even if it requires about 200 liters, a tank of about 150 liters 2
With 0, rational heat exchange processing and heat storage processing can be performed.

By carrying out such heat exchange treatment and heat storage heat treatment, it is possible to efficiently control the heat exchange amount, and it is possible to prevent excessive heat storage in the tank 20 based on the optimum heat exchange amount and to dissipate heat. Can be suppressed, and as a result, the capacity of the tank 20 can be reduced.

Further, a plurality of periods such as seasons are set in such a simple process, and the heat amount is set in the storage means 5 for each period. For example, each set heat amount is set to Qa (for example, summer),
If Qb (for example, mid-season) and Qc (for example, winter), the required heat amounts Qsa, Qsb, and Qsc for each season are:

[0036]                 Qsa = Qa-Q (2)

[0037]                 Qsb = Qb-Q (3)

[0038]                 Qsc = Qc-Q (4)

Therefore, the drive source 2 and the pump 18 may be operated for the time required to obtain this heat quantity Qs, that is, the integrated time, and fine heat exchange processing and heat storage processing can be performed. More efficient processing is possible, heat dissipation loss can be suppressed, and the capacity of the tank 20 can be reduced.

Next, FIG. 2 shows a second embodiment of the heat exchange heat storage control method and the heat exchange heat storage apparatus of the present invention. First
In the embodiment, the flow passages 28 and 30 have independent configurations, and the fluid 16 is discharged from the tank 20 to fill the shortage in the tank 20. However, the circulation passage 3 is formed by the flow passages 28 and 30.
7, the fluid 16 as a heat medium is circulated in the heat radiation load 38 through the circulation path 37, and the heat of the fluid 16 is used as a heating heat source. Even in such a case, the heat exchange treatment and the heat storage heat treatment can be performed efficiently as in the above-mentioned embodiment, the heat loss can be suppressed without storing extra heat in the tank 20, and the tank The capacity of 20 can be reduced.

Next, FIG. 3 shows a third embodiment of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention. Second
In the embodiment, the first fluid 8 and the second fluid 16 are used as the heat transfer medium, and the circulation paths 6 and 14 are used as means for individually circulating or flowing both fluids.
Although the heat exchanger 10 is installed between the heat exchanger 10 and the heat exchanger 10, in the embodiment shown in FIG. 3, a single circulation path 6 is formed between the tank 20 and the heat exchanger 4 of the drive source 2. The heat exchanger 10 is omitted by circulating the single fluid 8 corresponding to the first and second fluids 8 and 16. In this embodiment, when the operating time of the drive source 2 is adjusted by the control unit 3, the amount of heat exchanged between the heat generated by the drive source 2 and the fluid 8 is controlled, as in the first and second embodiments. , Heat exchanger 10
Is not present, the amount of heat exchange directly affects the amount of heat stored in the tank 20.

With this structure, the fluid 8 is heated by heat exchange with the heat generated by the driving source 2 which is a heat source,
The fluid 8 is circulated in the circulation path 6 and stored in the tank 20,
The heat can be stored together with the fluid 8. Then, by flowing the fluid 8 from the tank 20 to the circulation path 37 to the heat radiation load 38, heating can be performed by the heat of the fluid 8 as the heat medium. Then, in this case, the heat exchanger 10 and the circulation passage 14 as in the second embodiment can be omitted, and the single fluid 8 can be formed, so that the heat exchange process and the heat storage can be performed efficiently as in the case of the above embodiment. Processing can be performed. Moreover, there are advantages that excessive heat storage can be prevented, heat loss in the tank 20, the circulation path 14 and the like can be suppressed, and the capacity of the tank 20 can be reduced. Also in this embodiment, although not shown, if the fluid 8 runs short due to evaporation or the like, the fluid 8 is replenished.

The heat exchange heat storage control method and the heat exchange heat storage device have various embodiments as described below.

The heat source may be a drive source 2 such as an engine for driving a generator, or an exhaust heat source such as a fuel cell, and a combustion heat source such as an electric heat source, a gas fuel, a liquid fuel, a solid fuel, or the like. Various heat sources such as natural heat sources such as solar heat, geothermal heat, and hot spring heat can be used.

The heat exchange section 4 includes a means for directly flowing the fluid 8 such as a radiator of the drive source 2 and a means for heating the fluid 8 using an indirect fluid as a heat medium.

C The fluid 8 as the heat medium may be liquid or solid, and may be a substance that is fluidized at a predetermined temperature or higher.

D The pumps 12 and 18 may be pumps other than those using a DC motor as a drive source.

The e-fluid 16 may be liquid such as bath water in addition to tap water. That is, heat exchange is possible and the tank 20
Any means may be used as long as it can store heat. When the tank 20 is not used as the heat storage means, a heat-exchangeable liquid, powder, or the like may be used as the fluid 16.

Next, a concrete example of the heat exchange heat storage control method and the heat exchange heat storage apparatus will be described. FIGS. 4 to 6 show concrete examples of the heat exchange heat storage control method and the heat exchange heat storage apparatus. 4 shows a heat exchange and heat storage system on the heat source side, FIG. 5 shows a heat storage system and a heat utilization system following FIG. 4, and FIG. 6 shows a heat utilization system following FIG.

In this embodiment, an engine is used as a drive source 2 for driving a generator (not shown) as a heat source for radiating heat, and the heat exchange section 4 of the drive source 2 includes a drive source 2
The fluid 8 is circulated through the circulation path 6 which is also a cooling means of the exhaust heat recovery path. The fluid 8 is engine cooling water for exhaust heat recovery and exhaust heat recovery water, and functions as a heat medium. At the inlet side and the outlet side of the drive source 2 of the circulation path 6, temperature sensors 31, 33 composed of a thermistor or the like are installed as temperature detecting means, respectively. The bypass passage 37 of No. 1 is formed. A circulation pump 12A for forcedly circulating the fluid 8 is provided in the circulation path 6,
A circulation tank 40 for storing the fluid 8 to be circulated in the circulation path 6,
An electric heater 4 that is heated by the output of a generator (not shown)
2, a flow rate sensor 44 for detecting the circulation flow rate of the fluid 8, heat exchangers 10A, 10B, and the like are provided, and a second bypass passage for shortening the circulation passage during warm-up, in addition to the bypass passage 37. 46 is formed, and a three-way valve 48 is interposed between the bypass passage 46 and the circulation passage 6. The circulation pump 12A is driven by a DC motor 50 whose rotation speed can be easily controlled by voltage or the like.

The heat exchanger 10A is means for exchanging heat between the fluid 8 and the hot water 16A stored in the hot water storage tank 20A as the fluid 16, and heating the hot water 16A with the heat of the fluid 8. In the hot water storage tank 20A, the circulation path 14 for circulating the hot water 16A is configured as a closed circuit that connects the bottom side and the ceiling side of the hot water storage tank 20A, and the circulation path 14 includes the third and fourth bypass paths 54, 56. And bypasses 54, 56 are provided with three-way valves 58, 60 as flow path switching means. In addition, circuit 1
4 is a heat exchanger 10A, a flow sensor 62, a circulation pump 1
8A, the temperature sensor 66, etc. are provided. The circulation pump 18A is driven by a DC motor 67 whose rotation speed can be easily controlled by voltage or the like. When the circulation pump 18A is operated, the warm water 1 extracted from the lower layer side of the hot water storage tank 20A
After 6A is heated by the heat exchanger 10A, the hot water storage tank 20
It is returned to the upper layer side of A. Therefore, the hot water storage tank 20A
A first buffer plate 68 is installed on the upper side of the hot water storage tank 20A, and a second buffer plate 70 is installed on the bottom side of the hot water storage tank 20A, as a means for preventing disturbance of hierarchical heat storage by supplying or taking out the hot water 16A therein.

On the bottom side of the hot water storage tank 20A, the water supply passage 7 is provided.
2 is provided, a drain plug 74 is provided, and clean water W is supplied from the water supply pipe 76 to the bottom surface side of the hot water storage tank 20A. The water supply passage 72 is provided with a temperature sensor 36 for detecting the water supply temperature, the water supply pipe 76 is provided with a pressure reducing valve 78 and a flow rate sensor 80, and a hot water supply pipe 84 is connected via a mixing valve 82. ing. In addition, hot water 1 to be stacked and boiled on the side surface of the hot water storage tank 20A
A plurality of temperature sensors 861, 862, 863, 864, 865, 86 as temperature detecting means for detecting the temperature of 6A.
6, 867, 868, 869, 870 are installed at regular intervals. In this embodiment, ten temperature sensors 8
Although 61 to 870 are installed, less or more than this may be installed depending on the measurement zone.

A hot water outlet passage 88 is provided on the upper side of the hot water storage tank 20A, and one end of the hot water outlet passage 88 is
The temperature sensor 34A is opened to the outside air via the overpressure relief valve 90 and the negative pressure valve 92. A heat exchanger 96 for hot water supply backup, a temperature sensor 98 for detecting hot water temperature, and the like are provided on the other end side of the hot water outlet passage 88. The heat exchanger 96 uses the combustion heat of the fuel gas from the burner 100 as a heat source. In the hot water supply pipe 84 on the outlet side of the heat exchanger 96, the mixing valve 82 and the flow rate sensor 3 are provided.
2A, water proportional valve 102, temperature sensor 34 for detecting mixed temperature
B and the like are provided.

Hot water HW discharged from the hot water supply pipe 84
Is supplied to the additional heating circulation path 106 side and can be poured into the bathtub 108. A three-way valve 11 is provided on the side of the additional heating circulation path 106.
0, a circulation pump 112, a water level sensor 114, a temperature sensor 116, a heat exchanger 118, and the like.

Then, the heat exchanger 1 provided in the circulation path 6
0B is hot water 1 as a heating medium for heating the fluid 8 as a heat source.
The heating means 19 is provided in the heating circulation path 120. This heating circulation path 120 is used for the indoor radiator 38.
A hot water tank 128, a circulation pump 130, a flow rate sensor 32B, and a heat exchanger, which are means for circulating hot water 119 through heating terminals such as A and the bathroom heating / drying device 38B, and which are means for storing hot water 119 and suppressing expansion boiling. 118, 134, etc. are provided. The hot water tank 128 has a water supply pipe 13
6 is connected, and a valve 138 for adjusting the water supply is provided. The level sensor 140 is used for level control to store an appropriate amount of warm water 119 in the warm water tank 128. The heat exchanger 134 includes a burner 142.
The combustion heat of the fuel gas is used as a heat source, and is used for reheating the bath water BW in the bath 108 and for back-up heating of the hot water 119 as a heating heat source. In addition, the heat exchanger 118
Then, the heat of the hot water 119 is used to heat the additional heating circulation path 106.

In this heat exchange heat storage device, the switching directions A, B, C or D of the three-way valves 35, 48, 58, 60 are shown in FIG.
Is shown. For example, during warm-up operation, the three-way valve 35 is C
The -A direction and the three-way valve 48 are switched to the C-A direction. At this time, the three-way valve 58 is in the D-A direction and the three-way valve 60 is in the D-C (closed) direction in order to prevent natural convection of the hot water 16A. Can be switched.

As the heat exchange control means, a control section 3 composed of a computer or the like is installed. The control section 3 has a CPU as a calculation means, a ROM, a RAM as a storage means, a drive output and a detection. An I / O or the like is provided as an output input / output unit, and a hot water supply integrated output counter 144 is provided as a hot water supply integrating unit. As described in the first and second embodiments, the control unit 3 is connected to a storage unit 5 that stores a freely changeable set heat amount, and the storage unit 5 is composed of a RAM or an external storage device. To be done. The control executed by the control unit 3 is performed by the hot water storage tank 2
The flow rate of the hot water 16A from 0A, the time, the heat quantity is calculated from the calculation element of the temperature, and the calculated heat quantity is subtracted from the preset heat quantity to calculate the required heat quantity, and the pump 18A
And heat exchange processing by the heat exchanger 10A,
The storage heat treatment in the hot water storage tank 20A is executed.
In order to perform such control, the control unit 3 includes the temperature sensor 3
Detection outputs from various sensors such as 4A, 34B, 36, flow rate sensor 32A, etc. are added as control inputs, and the control outputs obtained from the control unit 3 are DC motors 50, 67 and three-way valves 35, 48, 58, 60, etc. , Added to actuators of various control devices. Further, the control unit 3 is provided with a display device 146 as a display means for displaying an alarm or the like, and the display device 146 can be constituted by a character display device, a voice generator or the like. In this embodiment, since the digital control is performed, the control unit 3 using a computer or the like is described as an example, but a control circuit that performs analog processing may be used.

Next, the main routine of the control operation of this heat exchange heat treatment will be described with reference to the flow chart shown in FIG.

When the power is turned on, in step S1,
After setting various valves such as the three-way valves 35, 48, 58 and 60 to the initial positions, the process proceeds to step S2. In step S2, the always-starting program is executed. In this always-on program, abnormal engine stop control, engine operation permission control, engine stop control, engine forced stop control, heating command control, hot water supply integrated output counter 144 control, valve abnormality check control, temperature sensor abnormality check control, etc. are performed. Be seen. Further, in step S3, it is determined whether or not a heating command is given to the control unit 3, and when there is no heating command, the process proceeds to step S4 and it is determined whether or not the engine operation is permitted. That is, it is confirmed in step S4 whether or not it is within the operation permission time set according to the season.

When the engine operation is permitted in step S4, the process proceeds to step S5, and it is determined whether the required heat storage amount is equal to or more than the predetermined heat storage amount. That is, in step S5,
For example,

[0061]   (Hot water supply load x 1.2-Integrated output-Tank heat storage amount)> 1000 kcal                                                           ... (5)

If the value obtained by subtracting the heat storage amount of the hot water storage tank 20A from the expected hot water supply demand is equal to or greater than the predetermined heat storage amount, the drive source 2 can be operated. In this case, the coefficient 1.2 is an example of a numerical value for allowing the hot water supply load to have a margin, and is not limited to this numerical value.

Here, the "hot water supply load" representing the required heat quantity used for the calculation in step S5 is for determining the hot water supply expected load in advance for each season.

[0064]

[Table 1]

That is, since the "hot water supply load" is the next expected hot water supply amount at the season and time,
When starting the drive source 2 at 18:00 on July X, the hot water supply load is calculated at 6000 kcal, and when starting the drive source 2 at 5:00 on Y day, February, the hot water supply load is calculated. Is calculated at 2000 kcal.

The "integrated output" is the sum of the outputs used for hot water supply and pouring, which is obtained using the hot water supply integrated output counter 144 incorporated in the control unit 3. That is,
All outputs including backup and use of heat storage are calculated during times when hot water supply is expected, and the data is fed back to the engine operating time.

Regarding the amount of heat stored in the hot water storage tank 20A, for example, when the tank capacity is 200 liters and the hot water storage tank 20A is divided into seven layers as shown in FIG.
Each zone Z = 1 to 7 has the same capacity, and the amount of warm water per zone is about 28.6 liters. Therefore, the water temperature is 5 ° C in winter, 15 ° C in spring / autumn, and 25 ° C in summer. By definition, the heat quantity Q (kcal) of each zone is

[0068]       Q = 28.6 x {(upper detection temperature + lower detection temperature) / 2-water temperature}                                                           ... (6)

Therefore, the heat storage amount Qm of the tank is 1 to 1 for all zones.
It is a total of 7. However, if {(upper detection temperature + lower detection temperature) / 2−water temperature} <10 ° C. as one condition, the zone is set to zero. In this case, the water temperature is 20 ℃
At this time, since the zone having an average hot water temperature of 30 ° C. has no utility value, the heat storage amount becomes zero. Then, for example, in winter, when the temperature detected by the temperature sensor 861 is 75 ° C. and the temperature detected by the temperature sensor 863 is 70 ° C., the heat quantity Q _{1 of the} zone ₁ is

Q ₁ = 28.6 × {(75 + 70) / 2-5} = 1930.5 (kcal) (7)

It becomes In addition, the temperature sensor 8 among the temperature sensors 861 to 870 composed of a thermistor (TH) or the like.
62 and 869 are not used for calculating the heat storage amount Qm.

Here, assuming that the hot water outlet temperature To, the incoming water temperature Ti, and the integrated flow rate Lm, the heat load (heat quantity) Q (k) used.
cal) is calculated from the formula (1) by Q = (To−Ti) × Lm.
In consideration of this, heat is stored in the hot water storage tank 20A, and heat exchange processing and heat storage processing are performed for a predetermined time until the heat load used + tank heat storage amount = predicted load is reached. The processing time for heat exchange and heat storage is the operating time of the pump 18A.

When it is determined in step S5 that the required heat storage amount is 1000 kcal or more, or when the heating command is issued in step S3, the process proceeds to step S6, and the lowermost side of the hot water storage tank 20A is placed. It is determined whether the temperature detected by the temperature sensor 870 is equal to or higher than a predetermined temperature, for example, 40 ° C. If the temperature is equal to or lower than the predetermined temperature, the process proceeds to step S7. In step S7, it is determined whether or not a predetermined time, for example, 60 minutes or more has elapsed since the last stop of the drive source 2, and if it is less than or equal to the predetermined time, it is started to protect the drive source 2 such as an engine. Ban. That is, the hot water storage tank 20
It was confirmed that the hot water temperature on the lowermost side of A was low, and overheating of the drive source 2 was prevented. When the predetermined time has elapsed, the process proceeds to step S8, the drive source 2 is started, and the warm-up operation is performed. In this warm-up operation, the three-way valve 48 is switched to narrow the circulation path 6 via the bypass path 46, and the heat medium temperature rises rapidly.

After this warm-up operation, step S9
Then, the temperature of the fluid 8 on the inlet side of the drive source 2 is controlled to a predetermined temperature, for example, 65 ° C. This constant temperature control is performed by increasing or decreasing the rotation speed of the DC motor 50 and adjusting the flow rate of the fluid 8 pumped by the circulation pump 12A while monitoring the temperatures detected by the temperature sensors 31 and 33.

By the way, in step S1, in the subroutine for setting the valve initial positions of the three-way valves 35, 48, 58, 60, etc., the three-way valve 58 is in the D-A direction and the three-way valve 60 is in the D-direction.
C (closed) direction, three-way valve 48 is C-A direction, three-way valve 35
Are switched in the CA direction. As a result, execution of the always activated program is prepared.

Further, in the engine abnormal stop control which is the subroutine of step S2, it is judged whether or not the engine which is the drive source 2 is in the operating state, and when the engine is in the operating state, a predetermined time of, for example, 10 seconds has elapsed. After that, it is determined whether or not the gas valve is closed (OFF). If the gas valve is closed, after stopping the engine, an alarm display is displayed on the display unit 146 as a display indicating that the engine is abnormally stopped. To do.

When the engine which is the drive source 2 is not in the operating state, it is determined whether or not the gas valve is open (ON) after a lapse of a predetermined time, for example, 10 seconds. After the engine is stopped, the display 146
The alarm is displayed on the screen, "Do not stop the engine."

Further, in the engine operation permission control which is a subroutine of step S2 of the main routine, it is judged whether or not the engine operation is the permission time. "
When the engine operation permission time is not reached, "prohibition" is output as an instruction to prohibit the engine operation permission.

In the engine stop control, which is a subroutine of step S2 of the main routine, the engine power of the drive source 2 is turned off, the valve initial position control is executed, and then the operating state of the engine is stopped.

In the forced engine stop control, which is a subroutine of step S2 of the main routine, it is determined whether or not the Esc key is pressed as the forced stop input means. When the Esc key is pressed, the engine is stopped. Execute control and end control.

Next, FIG. 9 shows control of the hot water supply integrated output counter 144 which is a subroutine of step S2 of the main routine of FIG. That is, when this subroutine starts, in step S11, it is determined whether or not the engine operation is "permitted". If the engine is permitted, the process proceeds to step S12 and the counter is reset. That is,
Heat quantity Qc stored in hot water supply integrated output counter 144
Is set to 0 kcal, the process proceeds to step S13, and the water temperature is determined. That is, 5 ° C in winter, 15 ° C in spring / fall,
After the temperature is set to 25 ° C. in the summer, the process goes to step S14 to measure the hot water temperature of the temperature sensor 34B which is the mixed temperature thermistor.

Then, in step S15, it is determined whether or not the flow rate sensor 32A for detecting the hot water supply amount has counted, for example, 1 liter as the predetermined flow rate. When 1 liter is counted, the process proceeds to step S16. In step S16, the hot water supply integrated output heat quantity Qn is calculated as the heat quantity calculation per liter. That is, this hot water supply integrated output heat quantity Qn (kcal) is

[0083]           Qn = (hot water temperature-water temperature) x 1 (kcal) (8) It is calculated by.

Then, the process proceeds to step S17, it is determined whether the engine operation permission is "prohibited". If the engine operation is prohibited, the process returns to step S11 and the engine operation is not prohibited. In this case, the process proceeds to step S14 and steps S14 to S16.
The process of is executed.

Next, FIG. 10 shows control of engine start-up and warm-up operation which is a subroutine of step S8 of the flowchart shown in FIG.

In step S31, in order to prevent natural convection of the hot water 16A, the three-way valve 58 is set in the DA direction, and the three-way valve 6 is used.
In order to configure 0 in the D-C (closed) direction and the warm-up circuit, after switching the three-way valve 48 in the C-A direction and the three-way valve 35 in the C-A direction, and setting the circulation pump 12A in the middle rotation, In step S32, it is determined whether or not the temperature detected by the temperature sensor 33 is a predetermined temperature, for example, 55 ° C. or lower. If the temperature exceeds 55 ° C., the process proceeds to step S33 and the pre-check starts. As the predetermined time, for example,
It is determined whether 20 minutes have passed. Over 55 ℃ 2
If 0 minute has elapsed, it is expected that some abnormality has occurred, so the process proceeds to step S34, an alarm is generated on the display 146, and "abnormal stop" is notified. At this time, the drive source 2 shifts to the stop mode.

When the detected temperature is 55 ° C. or less as the predetermined temperature in step S32, the process proceeds to step S35 to turn on the power source of the engine as the drive source 2, and the process proceeds to step S36 to set the engine start contact for a predetermined time, for example, After turning on the engine for 5 seconds, the process proceeds to step S37 to turn off the engine start contact, waits for a predetermined time, for example, 3 seconds, and proceeds to step S38. In step S38, it is determined whether or not the gas valve is in the ON state. If the gas valve is not in the ON state, the process proceeds to step S39, and it is determined whether or not the activation is a predetermined number of times, for example, the fifth time. If the number of times is less than or equal to the predetermined number of times, the process proceeds to step S40, and waits for a predetermined time for transition to the predetermined number of times, for example, 5 seconds, and then step S3
Return to 6. If the engine has reached the predetermined number of times in step S39, the process proceeds to step S41 to stop the engine, and in step S42 an alarm is generated on the display 146 and the engine start failure is notified. The user can know the abnormality by this notification.

When it is determined in step S38 that the gas valve has been turned ON, the process proceeds to step S43 and the drive source 2
The engine of becomes the operating state and shifts to step S44. In step S44, it is determined whether the temperature detected by the temperature sensor 33 exceeds a predetermined temperature, for example, 60 ° C.,
If the temperature does not exceed 60 ° C, the process proceeds to step S45,
It is determined whether a predetermined time has passed, for example, 20 minutes, and the transition of the detected temperature is monitored until the predetermined time passes. The detected temperature is 60 even though 20 minutes have passed.
If the temperature does not exceed 0 ° C, the process proceeds to step S46 to stop the engine, and then proceeds to step S47 to generate an alarm on the display unit 146 and notify the engine / inverter abnormality. The user can know the abnormality by this notification.

Then, in step S44, the temperature sensor 33
If the detected temperature exceeds 60 ° C., it means that the warm-up operation has been normally performed, and thus step S48 is performed.
After switching to the three-way valve 48 in the B-C direction and disconnecting the bypass path 46, the process proceeds to step S9 of the main routine (FIG. 7) to start power generation by the drive source 2 and start exhaust heat recovery.

Next, FIG. 11 shows the engine input temperature control (control of the target value of 65 ° C.) which is a subroutine of step S9 of the flowchart of FIG.

In step S51, it is constantly monitored whether or not the engine, which is the drive source 2, is in an operating state. In step S52, rotation control of the circulation pump 18A is executed. That is, the inlet temperature of the fluid 8 with respect to the drive source 2, that is, the temperature sensor 31.
The return temperature, which is the detected temperature of the
The rotation control of the circulation pump 18A is performed with the target value set to. As a result of this control, when the rotation of the circulation pump 18A is stopped, the three-way valve 60 is switched (closed) in the A-C direction, and when the circulation pump 18A is rotated, the three-way valve 60 is changed to D. After switching to the −B direction, the process proceeds to step S53.

In step S53, it is determined whether or not the temperature detected by the temperature sensor 870 on the lowermost side of the hot water storage tank 20A is equal to or higher than a predetermined temperature, for example, 50 ° C. If the temperature is equal to or lower than the predetermined temperature, the process proceeds to step S54. In this case, the hysteresis temperature with the starting condition is set to 10 ° C., for example. Then, in step S54, whether the inlet temperature of the fluid 8 with respect to the drive source 2, that is, the return temperature which is the temperature detected by the temperature sensor 31 is a predetermined temperature, for example, 75 ° C. or higher, is a predetermined time, for example, 10 seconds or longer. Also, it is determined whether or not the rotation speed of the circulation pump 18A is the maximum. If the return temperature is the predetermined temperature or less than the predetermined time and the rotation speed of the circulation pump 18A is not the maximum, the process proceeds to step S55.

In step S55, it is determined whether or not the driving state of the drive source 2 is stopped. When the driving source 2 is not stopped, that is, in the operating state, the process proceeds to step S56,
It is determined whether the heating contact is in the ON state. If it is not ON, the process proceeds to step S57, and it is determined whether the engine operation is permitted. If the engine operation is permitted, the process proceeds to step S58 and the tank heat storage amount is (hot water supply load). X1.2-cumulative output). That is, this determination intends to stop the engine operation when this condition is satisfied within the engine operation permission time when the heating is not performed.

By the way, in step S53, the temperature sensor 8
If the detected temperature of 70 exceeds a predetermined temperature, that is, 50 ° C., or if the return temperature is equal to or higher than the predetermined temperature for a predetermined time or more in step S54 and the rotation speed of the circulation pump 18A is the maximum, The process proceeds to step S59, the circulation pump 18A is stopped, and the process proceeds to step S60 to stop the engine. In step S61, after waiting a predetermined time, for example, 30 seconds, from the engine stop, the process proceeds to step S62, the circulation pump 12A is stopped, and then step S2 of the main routine shown in FIG.
Return to. That is, the reason why the circulation pump 12A is stopped after the circulation pump 18A is stopped is to prevent collapse of the hierarchical heat storage on the hot water storage tank 20A side.

Further, the engine is stopped in step S55, the engine operation is prohibited in step S57, or step S5 is performed.
When the tank heat storage amount exceeds (hot water supply load × 1.2−cumulative output) in step 8, the process proceeds to step S63, the engine is stopped, and a predetermined time, for example, 30 seconds has elapsed from the engine stop in step S64. After waiting until, the process proceeds to step S65, the circulation pump 18A is stopped, and the process proceeds to step S62.

In this heat exchange heat storage device, since the heat exchanger 10A for recovering exhaust heat and the heat exchanger 10B for heating are installed in the circulation path 6 which constitutes the cooling circuit of the drive source 2, the hot water is heated. The exhaust heat can be efficiently absorbed by the 16A and the hot water 119, and the hot water 16A can be guided to the hot water storage tank 20A to store the heat, and the hot water 119 can be flowed to the heating circulation path 120.

By the way, in order to maintain the performance and durability of the drive source 2, there is a limit to the exhaust heat absorption from the drive source 2, and the fluid 8
It is desirable to maintain a constant temperature range, for example, a constant temperature range, for example, a constant temperature range of, for example, 65 ± 5 ° C. with a median value of 65 ° C.
The return temperature of the fluid 8 returning to the drive source 2 greatly varies depending on the heating load and the temperature of the water supplied from the outside depending on the operating state of the bathroom heating / drying machine 38B, the number of operating machines, and the like. Therefore, the circulation flow rate of the fluid 8 on the circulation path 6 side is controlled, and the hot water 16 on the circulation path 14 side is controlled.
The return temperature of the fluid 8 is controlled in combination with the control of the circulation flow rate A. In this case, for example, the circulation pump 12A driven by the DC motor 50 having low power consumption and good controllability,
Similarly, a circulation pump 18A driven by a DC motor 67
By using, it is possible to widely adjust the flow rates of the fluid 8 and the hot water 16A according to the increase or decrease of the heating load, and it is possible to optimize the return temperature of the fluid 8.

In this case, when there is no heating request, heat is exchanged only by the heat exchanger 10A, and accordingly, the return temperature of the fluid 8 to the drive source 2 in accordance with this heat exchange is a predetermined temperature, for example,
The rotation speed of the circulation pump 18A is controlled so that the temperature becomes 65 ° C., the flow rate is adjusted, and heat is stored in the hot water storage tank 20A.

When a heating request is made, the return temperature of the fluid 8 fluctuates depending on the heat radiation load of the heating terminal. If the return temperature is a predetermined temperature or lower, for example, 65 ° C. or lower, the heat exchanger Since heat recovery at 10 A is unnecessary, the circulation pump 18 A is stopped and the return temperature of the fluid 8 is a predetermined temperature,
For example, when the temperature exceeds 65 ° C, the circulation pump 18A is operated, the flow rate of hot water is adjusted so that the return temperature of the fluid 8 becomes a predetermined temperature, that is, 65 ° C, and heat is stored in the hot water storage tank 20A.

However, in the heating request, when low temperature water is sufficient for low temperature, for example, floor heating, hot water circulation of about 60 ° C. is sufficient for the heating terminal. For such a low temperature requirement, the return temperature of the fluid 8 to the drive source 2 is 65 ° C., and the outgoing temperature from the fluid 8 is 75 ° C., so that the heat exchanger 10B can exchange heat of more than 60 ° C. Done. When hot water 119 of such high temperature is circulated,
The floor heating panel becomes overheated, which is not preferable.

Therefore, in the case of a low temperature (60 ° C.) heating request, the return temperature of the fluid 8 of the drive source 2 is shifted to the optimum return temperature for the low temperature request, for example 60 ° C., and the forward temperature is shifted to 70 ° C. Control the rotation of the circulation pump 18A to
Adjust the 6 A flow rate. That is, when the flow rate of the warm water 16A is increased, the exhaust heat recovery heat amount is increased and the circulation path 6 of the drive source 2 is increased.
Therefore, the temperature of the fluid 8 will decrease.

If the heat exchange heat storage control described above is performed, the flow rate, time, and time of the hot water 16A flowing out from the hot water storage tank 20A,
The heat quantity is calculated using each element of the temperature, and the necessary heat quantity is calculated by subtracting this heat quantity from the preset heat quantity for each period such as the season in advance, and the operating time of the drive source 2 and the pump 18A according to the necessary heat quantity. Is controlled, it is possible to minimize heat radiation loss without storing extra heat in the hot water storage tank 20A, and to realize efficient heat exchange processing and thermal storage processing.

[0103]

As described above, according to the present invention,
The following effects are obtained. a Since the heat exchange amount is controlled, it is possible to prevent unnecessary heat storage heat treatment and reduce heat dissipation loss. b The heat exchange and heat storage processing times can be minimized, unnecessary heat storage heat treatment can be prevented, heat dissipation loss can be reduced, and efficient heat exchange and heat storage heat treatment can be realized. c Since the operating patterns of heat exchange and heat storage can be optimized by learning the amount of heat used, it is possible to realize economical operation of heat exchange and heat storage, and to reduce the capacity of the heat storage means and the tank.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of a heat exchange heat storage control method and a heat exchange heat storage apparatus of the present invention.

FIG. 2 is a diagram showing a second embodiment of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention.

FIG. 3 is a diagram showing a third embodiment of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention.

FIG. 4 is a diagram showing a heat exchange system and a heat storage system which are specific examples of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention.

FIG. 5 is a diagram showing a heat storage system and a heat utilization system following FIG. 4, which is a specific example of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention.

FIG. 6 is a diagram showing a heat utilization system following FIG. 5, which is a specific example of the heat exchange heat storage control method and the heat exchange heat storage device of the present invention.

FIG. 7 is a flowchart showing a heat exchange control operation.

FIG. 8 is a diagram showing a heat storage form of a hot water storage tank.

FIG. 9 is a flowchart showing a subroutine relating to hot water supply integrated output counter processing in the main routine.

FIG. 10 is a flowchart showing a subroutine regarding an engine starting process and a warm-up operation process in a main routine.

FIG. 11 is an engine input temperature 65 in the main routine.
It is a flow chart which shows a subroutine about ° C control.

FIG. 12 is a diagram showing conventional heat exchange and heat storage.

[Explanation of symbols]

2 Drive source (heat source) 3 control unit (control means) 4 Heat exchange section (first heat exchange means) 5 storage means 8 First fluid 14 circuit 16 Second fluid 16A hot water (second fluid) 10, 10A heat exchanger (second heat exchange means) 20 tanks (heat storage means) 20A hot water storage tank (heat storage means)

   ─────────────────────────────────────────────────── ─── Continued front page    (71) Applicant 000196680             Seibu Gas Co., Ltd.             1-1-17 Chiyo, Hakata-ku, Fukuoka City, Fukuoka Prefecture (71) Applicant 000170130             Takagi Sangyo Co., Ltd.             201 Nishi-Kashiwabara Shinden, Fuji City, Shizuoka Prefecture (72) Inventor, T. Suzuki             1-5-20 Kaigan, Minato-ku, Tokyo Tokyo Gas             Within the corporation (72) Inventor Kenichi Tanogami             1-5-20 Kaigan, Minato-ku, Tokyo Tokyo Gas             Within the corporation (72) Inventor Kazuya Yamaguchi             1-5-20 Kaigan, Minato-ku, Tokyo Tokyo Gas             Within the corporation (72) Inventor Yoshitaka Kasahara             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. (72) Inventor Shin Iwata             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. (72) Inventor Keiji Takimoto             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. (72) Inventor Tadao Sugawara             4-1-2 Hirano-cho, Chuo-ku, Osaka-shi, Osaka Prefecture               Within Osaka Gas Co., Ltd. (72) Inventor Hiroshi Takagi             Aichi Prefecture Nagoya City Atsuta Ward Sakuradacho 19-18 East             Within Japan Gas Co., Ltd. (72) Inventor Kazuhiro Matsumoto             1-1089 Higashihama, Higashi-ku, Fukuoka-shi, Fukuoka             Department Gas Co., Ltd. (72) Inventor Hiroshi Ichikawa             No. 201 Nishi-Kashiwabara Shinden, Fuji City, Shizuoka Prefecture Takagi             Business (72) Inventor Mikio Goto             No. 201 Nishi-Kashiwabara Shinden, Fuji City, Shizuoka Prefecture Takagi             Business (72) Inventor Naoki Ishii             No. 201 Nishi-Kashiwabara Shinden, Fuji City, Shizuoka Prefecture Takagi             Business F term (reference) 3L054 BG10 BH05                 5H027 AA02 CC06

Claims (9)

[Claims] 1. A heat storage heat treatment in which a fluid heated by heat exchange with heat generated by a heat source is stored in a tank to store heat, and a flow rate, time, temperature of the fluid flowing out from the tank,
Heat exchange heat storage control, comprising: a process of calculating a heat amount using the temperature of the fluid to be supplemented or returned to the tank; and a process of controlling an exchange heat amount of the heat exchange according to the heat amount. Method. 2. A heat exchange process for heating a second fluid by the heat of a first fluid heated by the heat of a heat source; a heat storage heat treatment for storing the second fluid in a tank to store the heat; Flow rate of the second fluid flowing out, time,
A heat exchange heat storage control, comprising: a process of calculating a heat amount using a temperature and a temperature of a fluid to be filled in the tank; and a process of controlling a processing time of the heat exchange process according to the heat amount. Method. 3. A heat exchange process for heating a second fluid by the heat of a first fluid heated by the heat of a heat source; a heat storage heat treatment for storing the second fluid in a tank to store the heat; A heat exchange heat storage control method comprising: a process for calculating a heat amount using the circulating flow rate, time, and temperature of the fluid; and a process for controlling the processing time of the heat exchange process according to the heat amount. 4. The heat exchange heat storage control method according to claim 2, wherein the processing time is set according to a required heat quantity obtained by subtracting the heat quantity from a set heat quantity. 5. The heat exchange heat storage control method according to claim 2, wherein the processing time is set according to a required heat quantity obtained by subtracting the heat quantity from a set heat quantity for each predetermined period. 6. The heat exchange heat storage control method according to claim 1, wherein the operating time of the heat source is controlled according to the required heat amount. 7. A heat source for generating heat, a first heat exchange means for heating the first fluid by the heat of the heat source, and a second heat source for heating the second fluid by the heat of the first fluid. Heat exchange means, heat storage means for storing and storing the second fluid heated by the second heat exchange means, and circulating the second fluid through the heat storage means and the second heat exchange means. A circulation path, and a flow rate of the second fluid flowing out of the tank, time,
Control means for calculating a heat quantity using the temperature, the temperature of the fluid to be filled in the tank or the temperature of the second fluid returning to the tank, and controlling the operating time of the heat source in accordance with the heat quantity. A heat exchange heat storage device characterized by the above. 8. The control means includes a storage means in which a heat quantity is set in advance, reads out a set heat quantity stored in the storage means, and determines a required heat quantity obtained by subtracting a used heat quantity from the set heat quantity. The heat exchange heat storage device according to claim 7, wherein the heat source controls the operating time of the heat source. 9. The control means stores a heat quantity preset for each season in a storage means, reads the heat quantity from the storage means, and subtracts the used heat quantity from the heat quantity to obtain the required heat quantity according to the required heat quantity. The heat exchange heat storage device according to claim 7, wherein the operating time of the heat source is controlled for each season.