JP5881338B2 - Heat accommodation support device and heat accommodation support system - Google Patents

Description

  The present invention relates to a heat accommodation support apparatus and a heat accommodation support system.

In various applications such as factory processes and air conditioning, exhaust heat to a heat medium and heat collection from the heat medium are performed. The temperature and amount of heat exhausted and collected are various, and recently, the idea of "heat interchange" that effectively uses heat by collecting the heat exhausted at one point at another point is proposed. It has been attracting attention (see, for example, Patent Document 1).
For example, Patent Document 1 discloses a technique that enables the effective use of heat at a plurality of points by forming an end loop so as to mutually complement heat generated in a region such as a factory or a region.
Such heat accommodation can be as large as a factory or as large as a city, and the scale varies.
Further, in recent years, heat interchange using sewage heat such as sewage treated water and sewage is expected in cities and the like (see, for example, Patent Document 2).

International Publication No. 2002/065034 JP 2008-241226 A

  In the future, when heat interchange as described above is introduced, it is necessary to have a system that can aggregate the heat usage status at each site where heat is used and understand how much heat can be used at each site. It is expected to be. In particular, in heat accommodation, there are both a base that collects heat from a heat medium and a base that exhausts heat to the heat medium. It is necessary to evaluate the value of heat available at the site.

  The present invention has been made in view of such circumstances, and in heat accommodation in which heat collection and exhaust heat are performed, a standard that unifies the value of heat that can be used at each base regardless of the mode of use. It is an object to provide a heat accommodation support device and a heat accommodation support system that can be evaluated by the above.

In order to solve the above problems, the present invention employs the following means.
The present invention provides a heat medium system in which a plurality of bases that use heat are connected by a heat medium flow passage through which a heat medium circulates, and heat can be collected from the heat medium or exhausted to the heat medium at the base. A heat accommodation support apparatus to be applied, wherein the reception means receives information about heat use at the base at predetermined time intervals from a communication device provided at the base, and the potential about the heat quantity of the heat medium used by the base The potential is a parameter obtained by quantifying the value of the heat medium when a predetermined temperature is used as a reference, and the processing means is a heat medium inlet temperature at the base. When, by using the information about the heat utilization in the next site located upstream of the site, and calculates a potential amount of heat in the base, the information on the heat utilization, at least waste Before and after the temperature and waste heat, or to provide a heat interchange support apparatus including temperature and adopt heat around Tonetsu.

According to the present invention, the information on heat utilization transmitted from the communication device provided at the base at predetermined time intervals is received by the receiving means. Based on these pieces of information, the potential heat quantity of the heat medium at each site is calculated by the processing means. Here, since the potential of the heat medium is a parameter obtained by quantifying the value of the heat medium when a predetermined temperature is used as a reference, both the heat collection from the heat medium and the exhaust heat to the heat medium are used. Even if it exists, the value of the heat medium supplied to each site can be evaluated using a unified standard regardless of these modes of use.

In the heat accommodation support device, the processing means compares the potential heat quantity of the heat medium flowing into the base with a required potential heat quantity that is a potential heat quantity required at the base, thereby establishing heat accommodation at the base. It may be determined whether or not.

The processing means compares the potential heat quantity of the heat medium flowing into the base with the required potential heat quantity required at the base, and determines whether or not the heat interchange at the base is established. As a result, it is possible to grasp whether or not heat accommodation is established at each site.
In addition, information on the amount of heat that can be provided to each site in heat accommodation where heat collection and exhaust heat are performed is important information for evaluating the value of the heat medium. Therefore, it is determined whether or not heat interchange is established based on the potential heat quantity of the heat medium.

In the heat accommodation support apparatus, the processing means estimates the required potential heat amount from past use of the heat medium at the base, and determines whether heat accommodation is established using the estimated required potential heat amount. It is good as well.

Since the required potential heat quantity is estimated from the past heat utilization record at each base, it is possible to determine whether or not the heat interchange can be established at each base even when the required potential heat quantity is not registered.

In the heat accommodation support device, the processing means calculates a potential temperature, which is a potential related to the temperature of the heat medium, using the temperature of the heat medium flowing into the base, and is calculated at the calculated potential temperature and the base. It may be determined whether or not the heat interchange at the base is established by comparing the required potential temperature that is the potential temperature.

  In the heat interchange in which heat collection and exhaust heat are performed, the temperature of the heat medium provided to each base is important information for evaluating the value of the heat medium. Therefore, the potential temperature related to the temperature of the heat medium is calculated, and it is determined based on this whether or not heat interchange is established.

In the aforementioned heat interchange support device transmits at least one of whether the determination result of the establishment of heat interchange in Lupo Tensharu heat and the bases put on the bases calculated by the processing means to the client terminal of said bases It is good also as providing a transmission means.

The transmission means transmits at least one of the potential heat amount of the heat medium at each site and the determination result of whether or not heat accommodation is possible to the client terminal at the site, so that the current status of heat accommodation at each site is grasped. In addition, it becomes possible to schedule future heat use in consideration of this information.

In the heat accommodation support apparatus, the processing means may include display processing means for creating display information in which the base and the potential heat quantity of the heat medium flowing into the base are associated with each other.

Since the display processing means creates display information in which each base and the potential heat quantity of the heat medium flowing into each base are associated with each other, by confirming this display information, the heat medium flowing through the heat medium flow passage It is possible to grasp the overall state of potential heat quantity .

  The present invention provides any one of the above-described heat accommodation support devices, a communication device that is provided at a base where heat utilization is performed, and transmits information on heat utilization at the bases to the heat accommodation support device, and the heat accommodation. Provided is a heat accommodation support system including a client terminal at the base including a display unit connected to a support device via a communication network and capable of displaying information received from the heat accommodation support device.

  According to the present invention, in heat accommodation in which heat collection and exhaust heat are performed, there is an effect that the value of heat that can be used at each base can be evaluated according to a unified standard regardless of the use mode.

It is the figure which showed heat accommodation notionally. It is a figure for demonstrating the concept of the potential of a heat medium. It is a figure for demonstrating the calculation method of the potential temperature and potential calorie | heat amount in a base. It is the block diagram which showed the whole schematic structure of the heat accommodation assistance system which concerns on one Embodiment of this invention. It is the functional block diagram which expanded and showed the function with which the heat accommodation assistance apparatus which concerns on one Embodiment of this invention is provided. It is the functional block diagram which expanded and showed the function with which the process part shown in FIG. 5 is provided. It is the figure which showed an example of the 1st display information produced by a display process part. It is the figure which showed an example of the 2nd display information produced by a display process part.

Hereinafter, an embodiment of a heat accommodation support device and a heat accommodation support system according to the present invention will be described with reference to the drawings.
FIG. 1 is a diagram conceptually showing heat accommodation. As shown in FIG. 1, a plurality of bases 30 where heat is transferred are scattered, and the bases 30 are connected by a heat medium flow passage 40 through which the heat medium flows. The base 30 is a place where a heat source machine such as a heat pump or a refrigerator is installed, and is a place where heat is transferred. In FIG. 1, a base 30 with an arrow drawn toward the heat medium flow passage 40 is a base where heat is exhausted, and a base with an arrow drawn from the heat medium flow passage 40 toward the base 30. Reference numeral 30 is a base where heat is collected.

As shown in FIG. 1, the heat medium warmed by exhausting heat at one base 30 is used as a heat source at another base 30, so that heat is reused and collected at one base. It can be seen that heat is reused by using the cooled heat medium as a cooling source at other points. Energy efficiency is enhanced by such heat accommodation. Further, in FIG. 1, the heat medium flow passage 40 is represented as a closed loop, and it can be seen that the heat medium circulates while heat is used.
An example of the heat accommodation is supply of sewer heat. In such a case, heat accommodation is operated by, for example, a sewerage station in a city or the like.

  Next, the concept of the potential of the heat medium flowing through the heat medium flow passage 40 will be described with reference to FIG. As shown in FIG. 2, when considering a minimum section of the heat medium flow passage 40 through which the heat medium flows, the heat medium entering and exiting this minimum section has a state quantity as shown in Table 1 below.

  What is calculated from the inlet state quantity of the minimum section is the potential of the heat medium, and if heat input from the outside or heat radiation to the outside is performed by the section outlet, the potential of the heat medium at the inlet of the next section is Change. In addition to the case where a new heat medium flows in directly, heat input and heat dissipation from the outside are performed by heat transfer due to a temperature difference between the pipe line where the heat medium moves and the outside.

  For example, the potential calorie, which is the potential related to the calorie of the heat medium, is expressed by the following equation (1) using the state quantity at the inlet. Here, the use of a heat medium in heat accommodation includes heat collection and heat dissipation, but in this embodiment, a reference temperature is provided, and the value of heat with respect to this reference temperature is quantified, regardless of the use mode. In addition, it is possible to evaluate the value of the heat medium according to a unified standard. The reference temperature can be arbitrarily set, but in this embodiment, it is set to 0 ° C. as an example. Further, the reference temperature may not always be constant, and for example, a value that changes like the outside air temperature may be used.

Q ₁ = v ₁ × A ₁ × ρ ₁ × C ₁ × (T ₁ −T _S ) (1)

In Equation (1), Q ₁ is the amount of heat (kW) at the minimum section inlet, v ₁ is the average flow velocity (m / s) at the minimum section inlet, A ₁ is the pipe cross-sectional area (m ² ) at the minimum section inlet, ρ ₁ Is the density at the minimum zone inlet (kg / m ³ ), C ₁ is the specific heat (kJ / kg · K), T ₁ is the temperature at the minimum zone inlet (° C.), and T _S is the reference temperature (° C.), ie 0 ° C. It is.

The heat input and heat dissipation are expressed by the following equation (2) when flowing directly, and the heat conduction through the pipeline is expressed by equation (3).
For heat conduction, the product of the average outer peripheral length and section length of the entrance / exit is the heat transfer area, and heat transfer is the difference between the average temperature of the entrance / exit and the external temperature.

_{q = v G × A G ×} ρ G × C G × (T G -T S) (2)
q = (L _r1 + L _r2 ) / 2 × L × {(T ₁ −T ₂ ) / 2−T _G } × λ (3)

In the formula (2), v _G , A _G , ρ _G , C _G , and T _G are the average flow velocity (m / s), pipe cross-sectional area (m ² ), density (kg / m ³ ), specific heat, respectively. (KJ / kg · K) and temperature (° C.). In Equation (3), L _r1 is the outer peripheral length (m) at the minimum section entrance, L _r2 is the outer peripheral length (m) at the minimum section exit, L is the minimum section length (m), and T ₁ is the minimum section entrance. temperature (℃) in, _{T 2} is the temperature at the minimum section outlet (℃), lambda is the thermal conductivity (kW / m · K).

  From the above, the potential heat quantity at the minimum unit outlet is expressed by the following equation (4).

Q ₂ = Q ₁ + q (4)

  And if this minimum section is connected continuously, the potential of the heat medium at each point in a certain region can be calculated.

In the heat accommodation support system according to the present embodiment, the value of the heat medium that can be supplied to each site 30 shown in FIG. Is determined, that is, whether or not the amount of heat desired by each site can be supplied from the heat medium is determined.
Here, as shown in Table 1 above, the potential can be calculated for each state quantity of the heating medium. In particular, in the case of heat accommodation, the potential heating quantity that is the potential of the heating medium related to the heating quantity and the heating medium related to the temperature. The potential temperature which is the potential of is an important item. Therefore, in the heat accommodation support system according to the present embodiment, whether or not the heat accommodation is established at each site is determined using the potential heat quantity and the potential temperature.
Hereinafter, a method for calculating the potential temperature and the amount of potential heat at each site 30 will be described.

  Consider two adjacent bases A and B as shown in FIG. Here, the base A is located on the upstream side of the base B. At this time, the current potential temperature at the base B is obtained by the following equation (5).

T _B = T _Bin −T _s (5)

(5) In the formula, the potential temperature _{T B} is based B (° _{C.), T Bin} is heat medium inlet temperature of the site B (° C.), _{T s} is the standard temperature (° C.), i.e., a 0 ° C..

Further, the potential heat quantity at the site B is obtained by the following equation (6).
Q _PB = T _B × F _AB × C × γ / 3600 (6)

(6) In the _{formula, Q PB} is Point B is available heating medium potential heat (kW), _{T B} is the current potential temperature locations B (° _{C.), F AB} is between site A and site B Heat medium flow rate (m ³ / h), C is specific heat (kJ / kg · K), and γ is specific gravity (kg / m ³ ).
Here, as the heat medium flow rate F _AB between the base A and the base B, a flow sensor may be provided in the heat medium flow passage 40 and a value measured by the flow sensor may be used. It is good also as estimating by arithmetic processing using the arithmetic formula shown to the following (7) Formula, without providing a flow sensor in the path | route 40. FIG.

F _AB = Q _A / {(T _AOUT −T _AIN ) × C × γ / 3600 (7)

In Formula (7), Q _A is the amount of heat exhausted or collected (kW) at site A, T _AOUT is the heat medium outlet temperature (° C.) at site A, and T _AIN is the heat medium inlet temperature (° C.) at site A. .

  As described above, in calculating the potential heat quantity at each site in the heat medium flow passage 40, information on the use of the heat medium at the site adjacent to the site and located upstream may be used. In addition, since the base is located downstream of the junction where the plurality of heat medium flow passages 40 join, when there are a plurality of adjacent upstream bases, information on the use of the heat medium at the plurality of bases May be used. Furthermore, when there is heat input from the outside or heat radiation to the outside, the potential heat quantity may be calculated in consideration of them.

  As described above, in calculating the potential heat quantity at each base, the potential heat quantity is calculated without using a complicated arithmetic expression by using information on the use of the heat medium at the adjacent base and the heat medium inlet temperature at the base. It becomes possible to do.

  Next, a heat accommodation support device and a heat accommodation support system according to the present embodiment will be described. As described above, the heat accommodation support device and the heat accommodation support system according to the present embodiment calculate the potential of the heat medium at each site, and whether the heat accommodation at each site is established based on the potential of this heat medium. It is to determine whether or not.

FIG. 4 is a block diagram showing the overall configuration of the heat accommodation support system according to the present embodiment. The heat accommodation support system includes a heat accommodation support device 1, a communication device 2 installed at each site 30, and a client terminal 3.
The heat interchange support device 1 and a plurality of communication devices 2 installed at each base 30 are connected via a predetermined communication network 6. The communication network 6 is not particularly limited. The heat interchange support device 1 and the client terminal 3 are connected by a predetermined communication network 7, for example, the Internet. Note that the communication network 6 and the communication network 7 may be the same or separate networks.

  The communication device 2 installed at each site 30 transmits information related to heat utilization by the heat source device installed at the site 30 to the heat accommodation support device 1 at predetermined time intervals. As information regarding heat utilization, for example, the temperature before and after the exhaust heat and the amount of exhaust heat, or the temperature and the amount of heat collected before and after the heat collection are listed as examples.

The amount of exhaust heat is obtained by the following equation (8), for example.
Q = (Tout−Tin) × F × C × γ / 3600 (8)
In equation (1), Q is the amount of exhaust heat (kW), Tin is the cooling water inlet temperature (° C.) of the heat source unit, Tout is the cooling water outlet temperature (° C.) of the heat source unit, and F is the cooling water flow rate (m ³ / h), C is specific heat (kJ / kg · K), and γ is specific gravity (kg / m ³ ).

The amount of heat collected is determined by the following equation (9).
Q = (Tin−Tout) × F × C × γ / 3600 (9)
In Equation (9), Q is the amount of heat collected (kW), Tin is the heat source water inlet temperature (° C.) of the heat source machine, Tout is the heat source water outlet temperature (° C.) of the heat source machine, and F is the heat source water flow rate (m ³ / h), C is specific heat (kJ / kg · K), and γ is specific gravity (kg / m ³ ).

The calculation of the amount of exhaust heat or the amount of heat collected is performed by, for example, a control board provided in the heat source device, and the calculation result is output to the communication device 2.
The communication device 2 transmits information on heat utilization notified from each heat source device to the heat accommodation support device 1 via the communication network 6 at predetermined time intervals. In addition, about the site | part in which the some heat source machine is provided, the sum total of the average temperature and the calorie | heat amount in each heat source machine is transmitted to the heat accommodation assistance apparatus 1, for example.

The heat accommodation support device 1 calculates the potential heat quantity and the potential temperature for each site based on the information regarding the use of the heat medium received from the communication device 2 installed at each site 30, and heat accommodation is established at each site. It has a function to determine whether or not. Furthermore, the heat accommodation support device 1 has a function of calculating a unit price of unused heat for each site based on information received from each communication device 2 and outside air information, and a heat medium that visualizes the status of heat utilization at each site 30. It has a function to create a system diagram. Here, the unused heat unit price is the unit price of the heat medium flowing through the heat medium flow passage 40, and will be described in detail later. The heat accommodation support device 1 provides each site 30 with the potential heat quantity calculated for each site, the possibility of establishment of heat accommodation, display information created for each site, and the like.
For example, the heat accommodation support apparatus 1 includes a WEB server 4, and the WEB server 4 provides information to the client terminals 3 at each site using the Internet as a communication medium.

The client terminal 3 is a computer equipped with a WEB browser, and has a function of acquiring data from the heat interchange support device 1 and displaying it on the display device 5. That is, when the client terminal 3 accesses a predetermined URL of the WEB server 4, the display device 5 displays the potential heat quantity and potential temperature at the base, the heat medium system diagram to which the unused heat unit price is added, and the like. Is possible.
In addition, the client terminal 3 is installed in, for example, each base 30 or a management facility that manages and controls heat use at each base 30. Accordingly, the user at each site displays the current heat medium potential, the unused heat unit price, the heat medium system diagram, and the like on the display device 5, so that the heat at the site considering these information in a comprehensive manner. It is possible to adjust usage and schedule future heat usage.

  5 and 6 are functional block diagrams showing the functions provided in the heat accommodation support device 1 in an expanded manner. As shown in FIG. 5, the heat accommodation support device 1 includes a first storage unit 11, a first communication unit (reception unit) 12, a processing unit (processing unit) 13, a second storage unit 14, and a second storage unit. And a communication unit (transmission means) 15.

  The first storage unit 11 shows a heat medium system that includes a plurality of bases 30 that exist in the area in charge of the heat interchange support device 1 and that exchanges heat and a heat medium flow passage 40 that connects the bases. Basic frames are stored. In the present embodiment, one area of the city is assumed as the predetermined charge area, and heat interchange is assumed when a sewage network is used as the heat transfer passage 40.

The second storage unit 14 stores heat accommodation determination conditions registered by each base 30. Specifically, the required potential calorific value and required potential temperature when each base 30 uses heat are stored in association with the use time.
The required potential heat quantity and the required potential temperature are set in a certain range, for example, and can be set and updated from the client terminal 3 in a preset minimum time unit.

  The first communication unit 12 is a communication interface with the communication device 2, and the second communication unit 15 is a communication interface with the client terminal 3. If the communication network 6 and the communication network 7 are the same, the first communication unit 12 and the second communication unit 15 may be shared.

  As shown in FIG. 6, the processing unit 13 includes a potential calculation unit 13a, a heat interchange establishment determination unit 13b, a heat rate calculation unit 13c, and a display processing unit 13d.

The potential calculation unit 13a uses the heat collection amount of each site 30 received by the first communication unit 12 and the temperature before and after the heat collection, or the amount of exhaust heat and the temperature before and after the exhaust heat. The potential, specifically, the potential temperature and the amount of potential heat are calculated, and the calculation results are output to the heat interchange establishment determination unit 13b and the display processing unit 13d.
Specifically, the potential calculation unit 13a has the above-described arithmetic expressions (5) to (7), and calculates the potential temperature and the potential heat amount at each base 30. The calculation method is as described above.

  The heat interchange establishment determination unit 13b compares the current potential temperature calculated by the potential calculation unit 13a with the condition of the required potential temperature at the next time stored in the second storage unit 14 for each base, It is determined whether or not the potential temperature satisfies the required potential temperature condition. Here, the next time means the time after the minimum time unit from the present time.

  Furthermore, the heat interchange establishment determination unit 13b compares the potential heat amount calculated by the potential calculation unit 13a with the required potential heat amount condition of the next time stored in the second storage unit 14 for each base, It is determined whether or not the potential heat quantity satisfies the condition of the required potential heat quantity.

As a result of the above determination, if the current potential temperature satisfies the requirement potential temperature condition and the current potential calorie satisfies the requirement potential calorie condition, it is determined that heat accommodation is established, and otherwise It is determined that the heat exchange is not established.
The heat interchange establishment determination unit 13 b stores the determination result in the second storage unit 14 in association with the identification information of the base 30.

  The heat rate calculation unit 13 c calculates the unit price of unused heat at each site 30 based on the amount of exhaust heat or the amount of heat collected from each site 30 received by the first communication unit 12, the heat medium temperature, the outside air temperature, and the like. Here, the unused heat means the heat of the heat medium flowing through the heat medium flow passage 40, and the unused heat unit price means the unit price of unused heat.

The unused heat unit price will be described below.
The unused heat unit price varies depending on, for example, outside air conditions.
In other words, when the outside air temperature is high, such as in the summer, it is considered that the unused heat itself is also affected by the outside air, and the temperature increases, and further, the demand for refrigerators by cooling increases. The temperature of unused heat tends to be higher. Therefore, the unused heat unit price for the base that exhausts heat to the heat medium flow passage 40 is set high from the balance of heat supply and demand. On the other hand, bases that use unused heat as heat collection to reduce the temperature of unused heat are highly valuable from the balance of heat supply and demand, and these bases provide unused heat at a low price. That is, the unused heat unit price is set low. In addition, it is good also as returning profit rather than charging with respect to the base judged that the value is high from the balance of heat supply and demand.

  In addition, when the outside air temperature is low, such as in winter, the unused heat itself may be affected by the outside air, resulting in a low temperature. In addition, demand for heat source equipment such as hot water supply and heating will increase. For this reason, the temperature of the unused heat tends to further decrease. Therefore, the unused heat unit price for the base where heat is collected from the heat medium flow passage 40 is set high from the heat supply / demand balance. On the other hand, bases that exhaust heat from unused heat and raise the temperature of unused heat are highly valuable from the balance of heat supply and demand, and low-priced unit prices are set for these bases. As in the summer season, profits may be returned to the bases determined to have high value from the heat supply and demand balance instead of charging.

  As described above, the unused heat unit price is determined by the outdoor air condition and the heat supply / demand balance. In the present embodiment, the unused heat unit price is expressed by two elements of the absolute value of heat and the relative value of heat.

  The unused heat unit price is expressed as a value obtained by multiplying the absolute value of the unused heat and the relative value, as in the following equation (10).

  Cf = Cfa × Cfr (10)

  In the equation (10), Cf is a unit price of unused heat, Cfa is an absolute value of unused heat, and Cfr is a relative value of unused heat.

  The absolute value Cfa of unused heat is expressed by the following equation (11), for example.

  Cfa = f (To, Tu) (11)

  In the above equation (11), To is the outside air temperature (° C.), and Tu is the exhaust heat or heat collection temperature (° C.). Further, a potential temperature based on the outside air temperature may be used in place of the above To and Tu.

  The relative value Cfr of unused heat is determined from the supply and demand balance of exhaust heat and heat collection, and is expressed by the following equation (12), for example.

  Cfr = f (Q ′) (12)

  In the equation (12), Cfr is a relative value of unused heat, and Q ′ is a surrounding utilization balance (kW).

  How much is the absolute value Cfa of the unused heat and how the relative value Cfr of the unused heat is determined in consideration of the surrounding use balance, Can be determined arbitrarily, and a specific mathematical formula may be used in accordance with the operation.

  The heat rate calculation unit 13c holds the above formulas (10) to (12), and the amount of exhaust heat or heat collected from each base 30 and the heat medium temperature received by the first communication unit 12, and the external server The unused heat unit price at each base 30 is calculated based on the external temperature received from the etc., and the calculated information is associated with the identification information assigned to each base 30 and output to the display control unit 13d. .

  The display processing unit 13d has a function of creating first display information that visualizes information on the potential heat quantity of each site 30 calculated by the potential calculation unit 13a, and information on the use of the heat medium at each site. 2 Has a function of creating display information.

  Specifically, the display processing unit 13d displays the “current potential heat amount distribution” in which the current potential heat amount at each site 30 calculated by the potential calculation unit 13a is stored, and the next stored in the second storage unit 14. “Potential calorie distribution at the next time” indicating the required potential calorie of each base at the time, and “Heat accommodation establishment distribution” obtained by subtracting the potential calorie distribution at the next time from the current potential calorie distribution as the first display information .

  FIG. 7 is a diagram illustrating an example of the first display information. In FIG. 7, the upper part is the current potential heat quantity distribution, and the latest potential heat quantity calculated by the potential calculation unit 13 a is associated with each site. In FIG. 7, the potential heat quantity is represented by the height of a mountain, and the potential heat quantity is higher as the mountain is higher. The middle row shows the “required potential calorie distribution”, where heat collection is indicated by valleys and exhaust heat is indicated by peaks.

  The lower row is a “thermal accommodation establishment distribution”, which is a distribution obtained by adding the “current potential heat distribution” and the “required potential heat distribution at the next time”. In this distribution, a potential heat quantity is represented by a mountain for a base where heat accommodation is established, and a potential heat quantity is represented by a valley for a base where heat accommodation is not established. The created first display information is stored in the second storage unit 14 in association with a predetermined URL.

  Then, when the client terminal 3 accesses the URL on the WEB, the first display information stored in the second storage unit 14 is transmitted to the client terminal 3 by the second communication unit 15. At this time, the information indicating whether or not the heat interchange is determined by the heat interchange establishment determining unit 13b is also added to the first display information and transmitted to the client terminal 3. As a result, the first display information as shown in FIG. 7 and the determination result as to whether or not heat accommodation is possible are displayed on the display device 5 of the client terminal 3.

  Further, the display processing unit 13d reads out the basic frame of the heat medium system from the first storage unit 11, and sends the base 30 of each base 30 received by the first communication unit 12 to each base 30 indicated on the read basic frame. A heat medium system diagram is created by displaying the amount of exhaust heat or the amount of heat collected and the heat medium temperature in association with each other. Further, the display processing unit 13d creates the second display information by adding the unused heat unit price at each base input from the heat rate calculation unit 13c to the created heat medium system diagram.

  FIG. 8 is a diagram showing an example of the second display information at a certain base. In the second display information, the heat collection amount or the exhaust heat amount is displayed as a numerical value at each base 30. Whether heat collection or exhaust heat is indicated by the direction of the arrow, where the arrow is displayed toward the base 30, the heat is collected, and the arrow is displayed from the base 30 toward the heat medium system. Is exhausting heat. Moreover, the thickness of the arrow is changed according to the heat collection amount or the exhaust heat amount. Further, the temperature of the heat medium flowing through the heat medium system is represented by a color. In FIG. 8, the temperature is divided into a plurality of temperature zones, and different colors are assigned to the respective temperature zones. The heat medium temperature is determined based on the temperature flowing into each site 30 and the temperature discharged. Furthermore, the unused heat unit price at the base is displayed on the upper left of the heat medium system diagram. The created second display information is stored in the second storage unit 14 in association with the URL assigned to each site 30.

  Then, when the client terminal 3 accesses the URL on the WEB, the display information stored in the second storage unit 14 is transmitted to the client terminal 3 by the second communication unit 15. As a result, the second display information as shown in FIG. 8 is displayed on the display device 5 of the client terminal 3.

Next, operation | movement of a heat accommodation support system provided with the said structure is demonstrated.
First, the heat collection amount of the heat source device at each base 30 and the heat medium temperature before or after the heat collection or the exhaust heat amount and the heat medium temperature before and after the heat collection are acquired and calculated in the control board of each heat source device, and these information is obtained from the communication device 2. Sent to. The communication device 2 transmits the input information to the heat accommodation support device 1 in association with the identification information of the base 30.

  In the heat accommodation support device 1, the identification information of the base 30 transmitted from the communication device 2 by the first communication unit 12, the heat collection amount of the heat source machine at this base 30, the heat medium temperature before or after the heat collection, the exhaust heat amount, and the exhaust heat The front and rear heat medium temperatures are received, and this information is output to the potential calculation unit 13a, the heat rate calculation unit 13c, and the display processing unit 13d.

  Based on the information received from the communication device 2 at each site 30, the potential calculation unit 13a calculates the current potential temperature and potential heat quantity at each site 30 using the above-described equations (5) to (7). The calculation result is output to the heat interchange establishment determination unit 13b and the display processing unit 13d.

  When the potential temperature and the amount of potential heat are input from the potential calculation unit 13a, the heat accommodation establishment determination unit 13b reads out the required potential temperature and the required potential heat amount of each base at the next time stored in the second storage unit 14. Then, based on these pieces of information, it is determined whether or not heat accommodation is possible, and the determination result is stored in the second storage unit 14 in association with the identification information of each base 30.

  The heat rate calculation unit 13c uses the above-described equations (10) to (12) for each site based on the information received from each site 30 and the weather information related to the outside temperature received from an external predetermined server or the like. The unused heat unit price is calculated, and the calculated unused heat unit price is output to the display processing unit 13d.

When the potential calorific value of each base 30 is input from the potential calculating unit 13a, the display processing unit 13d reads out information on the required potential calorific value at the next time stored in the second storage unit 14, and based on the information. First display information is created and stored in the second storage unit 14 in association with a predetermined URL.
Moreover, when the unused heat unit price of each base 30 is input from the heat rate calculation unit 13c, the display processing unit 13d reads the basic frame of the heat medium system stored in the first storage unit 11, and displays the basic frame on the basic frame. The heat medium system diagram is created by reflecting the amount of exhaust heat or the amount of heat collected from each base 30 input from the first communication unit 12 at the location of each base 30 displayed in FIG. Second display information to which the unused heat unit price of each base 30 input from the heat rate calculation unit 13c is added for each base, and this is stored in the second storage unit 14 in association with the URL of each base 30. .

In the second storage unit 14, when the second display information is already stored in association with the URLs of the respective bases 30, the display processing unit 13 d displays the heat medium stored in the second storage unit 14. What is necessary is just to perform the process which updates the information regarding the heat utilization of each base 30 in the system diagram, and the information of the unused heat unit price.
And the first display information and the second display information reflecting the latest heat utilization information at each base 30 are created by performing the above-described processing at each base 30 at a predetermined time interval, 2 is stored in the storage unit 14.

  Then, by accessing the URL on the WEB server assigned to itself from the client terminal 3, the latest first display information and second display information at the base stored in the second storage unit 14 are second. The data is transmitted to the client terminal 3 via the communication unit 15 and displayed on the display device 5 of the client terminal 3.

  As described above, according to the heat accommodation support device 1 and the heat accommodation support system according to the present embodiment, the potential of the heat medium, which is a parameter obtained by quantifying the value of the heat medium when a predetermined temperature is used as a reference. Is used to evaluate the value of the heat medium that can be used at each site.Therefore, in the heat interchange in which both heat collection from the heat medium and exhaust heat to the heat medium exist, these utilization aspects Instead, it is possible to evaluate the value of the heating medium supplied to each site using a unified standard.

  Further, by comparing a preset required potential at the next time with the current potential of the heat medium, it is determined whether or not heat accommodation at the next time can be established. Since it is set as the structure which can be transmitted to the terminal 3, in each base 30, it can be confirmed whether heat interchange establishment is possible.

  In the present embodiment, the case where the required potential heat quantity and the required potential temperature at the next time are set from the client terminal 3 and stored in the second storage unit 14 has been described. However, the required potential heat quantity and the required potential at the next time are described. The temperature may be estimated from past usage records, and the estimated information may be used to determine whether heat accommodation is possible. By doing in this way, for example, even when the required potential at the next time is not registered, it is possible to determine whether or not heat accommodation is possible, and it is possible to eliminate the need for the user to register these information. It becomes possible.

Moreover, according to this embodiment, the display screen in which the unused heat unit price at each site is added to the heat medium system diagram in which the status of heat utilization performed at each site 30 and the temperature of the heat medium is displayed. Since it is displayed on the display device 5 of the client terminal 3, the state of heat accommodation in the area in charge of the heat accommodation support device 1 can be visualized and presented to the user.
As a result, by checking this display screen, the user adjusts the heat usage of his / her base taking into account the unit price of unused heat and the status of heat usage at other bases, and schedules future heat usage. It becomes possible.

For example, in the case of a base that owns a system that uses unused heat and a system that uses a cooling tower or the like, the usage ratio of the system can be examined based on the unit price of unused heat.
In addition, when using a heat medium that has already been controlled to a desired temperature from an external facility such as a heat supply company owned by the government, etc., or after setting unused heat whose temperature is unstable to a desired temperature at the base, this At sites where both can be used as a heat transfer medium, the heat supply unit price set by external equipment such as a heat supply public corporation and the heat generated when a heat transfer medium of a desired temperature is manufactured using unused heat Compared with the manufacturing unit price (= unused heat unit price + cost required to bring unused heat per unit to a desired temperature), the amount of heat supplied from external equipment and the amount of heat supplied from unused heat It is possible to adjust the ratio. In other words, when the heat production unit price is higher than the heat supply unit price, priority is given to heat supply from external equipment, and when the heat production unit price is lower than the heat supply unit price, unused heat should be used. Prioritize. Thereby, cost reduction can be aimed at.

  Further, in the present embodiment, the case where the heat rate calculation unit 13c calculates only the unused heat unit price has been described. For example, in accordance with a request from the client terminal 3, the charging information at each base is calculated, It is also possible to provide the client terminal 3 with a heat medium system diagram to which the billing information and the unused heat unit price are added.

  The charging information is given by the following equation (13), for example.

  Ccu = Cf × Q = Cfa × Cfr × Q (13)

  In the equation (13), Ccu is billing information, Cf is the unused heat unit price, and Q is the unused heat usage (kW).

  In addition, in the heat interchange support device 1 according to the present embodiment, the users at each base consider the unused heat unit price displayed on the display device 5 and the heat supply and demand balance at the peripheral bases in the future to buy and sell unused heat. A function for making a reservation may be added.

  For example, on the display screen displayed on the display device 5 of the client terminal 3, a heat trading reservation site for making a trading reservation is displayed, and a design on the WEB is set so that a trading reservation for unused heat can be set. Also good. For example, in a sales reservation site, reservation of heat use in the future is performed by associating and inputting information related to sales, for example, a period of using unused heat and a desired heat use unit price. The reserved information is transmitted to the heat accommodation support apparatus 1 via the communication network 7 and stored as reservation information in the heat accommodation support apparatus 1.

When the period for using the unused heat starts, the heat accommodation support device 1 compares the unused heat unit price with the desired heat use unit price at that time, and the unused heat unit price sets the desired heat use unit price. If it is lower and it is determined that the heat accommodation is established by the heat accommodation establishment determination unit 13b, the heat utilization is started and the start of the heat utilization is notified to the client terminal 3 at the base. On the other hand, even if it is determined that the heat accommodation is established by the heat accommodation establishment determination unit 13b, if the unused heat unit price exceeds the desired heat use unit price, the heat utilization is not started without starting the heat utilization. The client terminal 3 is notified that it has not been started.
The registration of the desired heat usage unit price and the period of using the unused heat can be registered and changed with the minimum contract time defined in advance as the minimum unit.

In the heat accommodation according to the present embodiment, as described above, both heat collection and exhaust heat are performed. However, in the period in which exhaust heat is actively performed as in summer, the heat medium temperature is decreased. A base that performs heat collection that functions in a high value is valuable, and a base that performs exhaust heat that functions to increase the temperature of the heat medium is high in periods where heat collection is actively performed, such as in winter. .
In view of this situation, we have adopted a fee structure that pays a fee instead of billing, that is, purchases heat, for a base that is judged to have high value from the balance of heat supply and demand. Also good.
For example, out of heat collection and exhaust heat, the one with higher client demand is treated as a charge, and heat is purchased from the one with less client demand. Which of the heat collection and exhaust heat is to be charged and which is to be purchased can be easily determined by using, for example, the “required potential heat quantity distribution at the next time” shown in FIG.

  Further, in the case of purchasing heat, it is also possible to determine whether or not to start using heat according to the desired unit price, as in the case of the billing described above. In this case, for example, each base registers the desired heat purchase unit price in association with the period of using the unused heat in addition to or instead of the above desired heat use unit price. The registered information is stored in the second storage unit 14 of the heat accommodation support device 1. And when the period which uses unused heat | fever starts, the heat accommodation assistance apparatus 1 compares the heat purchase unit price and the desired heat purchase unit price at that time, and the purchase unit price of heat sets the desired heat purchase unit price. If it is determined that the heat accommodation is established by the heat accommodation establishment determining unit 13b, the use of heat (purchase of heat) is started, and the client terminal 3 at the base indicates that the heat utilization has been started. Notice. On the other hand, even if it is determined that the heat accommodation is established by the heat accommodation establishment determining unit 13b, if the heat purchase unit price is lower than the desired heat purchase unit price, the heat use is not started without starting the heat use. The client terminal 3 is notified that it has not been started.

DESCRIPTION OF SYMBOLS 1 Heat interchange support apparatus 2 Communication apparatus 3 Client terminal 4 WEB server 5 Display apparatus 11 1st memory | storage part 12 1st communication part 13 Processing part 13a Potential calculation part 13b Heat accommodation establishment determination part 13c Heat charge calculation part 13d Display processing part 14 Second storage unit 15 Second communication unit

Claims (7)

Heat applied to a heat medium system in which a plurality of bases that use heat are connected by a heat medium flow passage through which a heat medium flows, and heat can be collected from the heat medium or exhausted to the heat medium at the base. An accommodation support device,
Receiving means for receiving information on heat utilization at the base at predetermined time intervals from a communication device provided at the base;
Processing means for calculating a potential heat quantity that is a potential related to the heat quantity of the heat medium used by the base,
The potential is a parameter obtained by quantifying the value of the heating medium when a predetermined temperature is used as a reference,
The processing means calculates the potential heat quantity at the base using the heat medium inlet temperature at the base and information on heat utilization at the adjacent base located upstream of the base ,
The heat utilization support device includes at least the temperature and exhaust heat amount before and after exhaust heat, or the temperature and heat extract amount before and after heat collection . The processing means compares the potential heat quantity of the heat medium flowing into the base with a required potential heat quantity that is a potential heat quantity required at the base, and determines whether or not heat accommodation at the base is established. Item 2. The heat accommodation support device according to Item 1. 3. The heat according to claim 2, wherein the processing unit estimates the required potential heat amount from a past heat medium utilization record at the base, and determines whether heat accommodation is established using the estimated required potential heat amount. Accommodation support device. The processing means uses the temperature of the heat medium flowing into the base to calculate a potential temperature that is a potential related to the temperature of the heat medium, and the calculated potential temperature and a required potential temperature that is a potential temperature required at the base. The heat accommodation support device according to claim 2 or 3 , wherein it is determined whether or not heat accommodation at the base is established. Claim 2 comprising a transmitting means for transmitting at least one of whether the determination result of the establishment of heat interchange in Lupo Tensharu heat and the bases put on the bases calculated by the processing means to the client terminal of said bases The heat accommodation assistance apparatus in any one of Claims 1-4 . The heat accommodation according to any one of claims 1 to 5 , wherein the processing means includes display processing means for creating display information in which the base and the potential heat amount of the heat medium flowing into the base are associated with each other. Support device. The heat accommodation support device according to any one of claims 1 to 6 ,
A communication device that is provided at a base where heat is used, and transmits information on heat use at the base to the heat accommodation support device;
A heat accommodation support system comprising: a client terminal of the base including a display unit connected to the heat accommodation support device via a communication network and capable of displaying information received from the heat accommodation support device.

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