WO2015064798A1

WO2015064798A1 - Supply connection system for individual heat energy and central heat energy built with heating-dedicated equipment, and method for operating same

Info

Publication number: WO2015064798A1
Application number: PCT/KR2013/009917
Authority: WO
Inventors: 이재용; 임용훈
Original assignee: 한국에너지기술연구원
Priority date: 2013-11-04
Filing date: 2013-11-05
Publication date: 2015-05-07
Also published as: KR101541098B1; KR20150051573A

Abstract

Disclosed are a supply connection system for individual heat energy and central heat energy built with heating-dedicated equipment, and a method for operating same. The supply connection system for individual heat energy and central heat energy according to an embodiment of the present invention comprises: one or more individual household or building (100)which is provided with an individual heat energy generating device (110) able to produce heat energy; a central heat supply unit (200) which is connected to the individual household or building (100) by means of central piping (300), and which is provided with one or more central heat energy supply device (210) able to produce heat energy; and one or more bidirectional calorimeter (400a, 400b) which is (are) installed in the central piping (300) connecting the individual household or building (100) and the central heat supply unit (200), and which measures (measure) the flux of heat energy moving one way and the other way inside the central pipe (300), and, in the present invention, the central piping (300) is composed of supply piping (310) and recovery piping (320) through which a heat energy transfer medium can move.

Description

Individual thermal energy and central thermal energy supply connection system constructed with thermoelectric equipment, and method of operating the same

The present invention relates to a system for connecting individual thermal energy and central thermal energy supply, and a method of operating the same, which are constructed as a thermoelectric device.

The heat supply method for providing heating and hot water supply required for buildings or apartments can be largely divided into district heating, central heating, and individual heating. District heating means that a company equipped with a large-scale cogeneration or heat-only facility in a high heat density area supplies hot water or steam to the machine room of a building or apartment house by using a heat transportation pipe that is represented by the primary side. It refers to the heat supply method distributed to the demand source. Central heating refers to a small-scale heat supply system in which the machine room of a building or apartment house has its own heat production facilities to produce heat directly and distribute it to each heat demand. Individual heating means the way in which the heat demand represented by each user or household has a heat production facility of a size suitable for the heat demand and operates and supplies it individually.

The thermal energy network is a system for supplying thermal energy by connecting the heat energy supply side to the heat energy demand side and a pipe for transporting the heat medium, and among the above-described heat supply methods, district heating or central heating is one of the heat energy network systems.

The conventional heat energy network system is a unidirectional heat supply method for supplying heat energy in accordance with heat demand from the supply side at the supply side. Specifically, if the supply side supplies the high temperature heat medium to the demand side, the demand side obtains thermal energy from the high temperature heat medium. By supplying the heat energy to the demand side, the heat-reduced heat medium is returned to the supply side.

On the other hand, in recent years, a review of a thermal energy network system based on two-way heat trading has begun, in addition to a unidirectional thermal energy network that supplies heat only from a thermal energy supplier.

The two-way heat trading system not only supplies heat energy to the heat energy demand side but also surplus heat energy is generated from the demand side through its own heat energy generating device. In this way, the demand side can produce and supply heat during idle time of the thermoelectric device owned by each consumer to respond quickly to the rapidly changing neighboring heat demands compared to the remote suppliers, thereby improving heat supply satisfaction and at the same time, producing heat. Benefits can be expected to shorten the payback period for equipment installation and operating costs. In addition, the supplier side can manage the ever-changing demand on the consumer side more consistently, thereby reducing the frequent load fluctuations and enabling stable operation.In addition, when the cogeneration facility is operated, it can flexibly cope with the recent increase in electricity demand in the winter season. It has the advantage of combining operational effects. Accordingly, when such a two-way heat trading system is established, a heat supply network system based on a central supply-distributed heat source combination can be implemented, in which the consumer side can become a supplier if necessary, out of the fixed relationship of the existing consumer-supplier relationship. .

Such bidirectional heat trading can be performed not only between the supply side and the demand side, but also between different demand sides.

Therefore, since the relationship between the supply side and the demand side may vary depending on the situation during the heat transaction, it is necessary to accurately measure the flow rate of the heat energy generated during the purchase or sale and the structure that can control it.

However, in the prior art, a thermal energy network system capable of providing the supply side or the surplus thermal energy produced on the demand side to the supply side or another demand side is still in a state of insufficient development of the technology. Unlike electricity, in the case of heat, the distributed heat source owned by the customer does not sell heat, so there is no piping structure and control method for controlling the heat energy network. Moreover, the heat energy network system according to the prior art heat energy generated during heat trading. The flow rate of can only be measured with respect to one-way flow, but cannot be measured with respect to both directions.

Therefore, there is a need for a concrete solution for the thermal energy network system between the heat energy supply side, demand side, and another demand side.

An object of the present invention, in the individual heating and central heating combined system built with thermoelectric equipment, by establishing a thermal energy network system between each of the heat energy demand side, supply side and another demand side, the heat energy network system that can buy and sell mutual heat energy And to provide a method of operating the same.

Individual thermal energy and central thermal energy supply connection system 500 according to an aspect of the present invention for achieving this object,

One or more individual households or buildings 100 having individual thermal energy generators 110 capable of producing thermal energy;

A central heat supply unit 200 connected to the individual generation or building 100 by a central pipe 300 and having at least one central heat energy supply device 210 capable of producing heat energy; And

One or more mounted on the central pipe 300 connecting the individual households or the building 100 and the central heat supply unit 200, the bi-directional measuring the amount of thermal energy moving in one direction and the other direction inside the central pipe (300)

Calorimeters

400a and 400b;

Including,

The central pipe 300 may be composed of a supply pipe 310 and a return pipe 320 through which the heat energy transfer medium may move.

In this case, the individual thermal energy generator 110 may be a boiler using fossil or biomass fuel such as an oil boiler, a gas boiler, a pellet boiler, or a renewable heat source boiler such as solar heat.

In one embodiment of the present invention, in the pipe 300 connecting the individual household or building 100 and the central heat supply unit 200, to adjust the flow direction of the thermal energy, 3-way valve (3-way valve 131 and a check valve 132 may be further mounted.

In another embodiment of the present invention, the supply pipe 310 is supplied with the heat energy generated from the individual heat energy generator 110, or the heat energy generated from the central heat energy supply device 210 to the individual generation or building 100 Connected with individual households or buildings (100) to supply

The return pipe 320 may supply the heat energy transfer medium to the individual heat energy generating device 110 or recover the heat energy transfer medium flowing into the supply pipe 310, or the supply pipe 310 and the individual generation or It may be connected to the building 100.

In another embodiment of the present invention, the return pipe 320 and the individual heat energy generating device 110 are interconnected by a connection pipe 321 through which the heat energy transfer medium can move,

Two-

way calorimeters

400a and 400b may be installed in the connection pipe 321 to measure the amount of heat energy of the heat energy transfer medium flowing from the return pipe 320 to the individual heat energy generator 110.

The present invention also provides a method for operating the individual thermal energy and the central thermal energy supply linkage system 500, the individual thermal energy and central thermal energy supply linkage system 500 according to an aspect of the present invention is an individual household or building (100) According to the desired heating or hot water supply temperature of the) will take the operation method of the individual thermal energy generator 110 differently. The operation method of this system is

(a) stopping the operation of the individual heat energy generator 110 when there is no demand for heat energy of the individual household or building 100 and there is no intention of selling heat energy;

(b) When there is no demand for thermal energy of an individual household or building 100 and there is a willingness to sell heat energy, the individual thermal energy generator 110 is supplied with a thermal energy transfer medium through the return pipe 320 and the connection pipe 321. Producing heat energy using the same and supplying heat energy to the connection pipe 311 and the supply pipe 310 to sell the heat energy; And

(c) When there is a demand for heat energy of an individual household or building 100 and there is no intention to sell heat energy, the individual heat use unit 120 of the individual household or building 100 by producing heat energy using the individual heat energy generator 110. Process of feeding on;

It may be a configuration including a.

In this case, the return pipe 320 and the individual heat energy generating device 110 are interconnected by a connection pipe 321 through which the heat energy transfer medium can move.

Two-

way calorimeters

400a and 400b may be mounted on the connection pipe 321 to measure the flow rate of the heat energy transfer medium flowing from the return pipe 320 to the individual heat energy generator 110.

In addition, the individual thermal energy and the central thermal energy supply system operating method,

(d) In the process (c), if the heat energy produced by the individual heat energy generator 110 is insufficient to meet the heat energy demand required by the generation, through the supply pipe 310 and the connection pipe 312 Receiving heat energy and supplying the individual heat-use unit 120 of the individual household or building 100;

It may be a configuration that further includes.

When the system is operated by the above operating method, when more than one individual thermal energy generating device 110 is operated in connection with the central thermal energy supply device 210, a plurality of thermal energy sales will exceed the heat demand and excessively increase the supply temperature. In the case of using the heat energy storage unit 220 in the central heat supply unit 200 to store the excess heat, on the contrary, despite the demand for heat, there is no intention to sell heat energy and exceeds the supply capacity of the central heat supply unit 200 In this case, the configuration may further include a method of utilizing heat stored in the heat energy storage unit 220 in the central heat supply unit 200.

1 and 2 are schematic diagrams of a system for linking individual thermal energy and central thermal energy supply according to an embodiment of the present invention.

3 and 4 is a conceptual diagram of a bidirectional calorimeter according to the present invention.

5 is a flowchart illustrating a method of operating an individual thermal energy and a central thermal energy supply linkage system according to an embodiment of the present invention.

6 to 9 is a schematic diagram showing a method of operating the individual thermal energy and the central thermal energy supply linked system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the scope of the present invention is not limited thereto. In the description of the present invention, a detailed description of known configurations will be omitted, and a detailed description thereof will be omitted for configurations that may unnecessarily obscure the subject matter of the present invention.

1 and 2 are schematic diagrams of individual thermal energy and central thermal energy supply linkage systems in accordance with one embodiment of the present invention.

First, referring to FIG. 1, the individual thermal energy and central heat energy supply connection system 500 according to the present embodiment includes an individual household or building 100, a central heat supply unit 200, and a central pipe 300. Here, the central pipe 300 connecting the individual household or building 100 and the central heat supply unit 200 and the

bidirectional calorimeters

400a and 400b mounted between the individual household or building 100 and the central pipeline 300. It may be a configuration.

Specifically, the individual generation or building 100 may adopt a renewable energy source boiler such as solar heat or a boiler using fossil or biomass fuel such as an oil boiler, a gas boiler, a pellet boiler, or the like as the individual thermal energy generator 110. In addition, the heat energy produced from the individual heat energy generator 110 may be supplied to the individual heat using part 120 including the heating distributor 121 and the hot water supply and power supply 122.

More specifically, the individual heat use unit 120 may include a generation hot water supply unit 123, as shown in FIG. 1, and the generation hot water supply unit 123 may receive the water supplied from the external municipal water supply source 124. Heated by the supplied thermal energy, the heated hot water supply can be used through the hot water supply faucet (122).

The individual household or building 100 may supply surplus thermal energy produced from the individual thermal energy generator 110 to the central heat supply unit 200 through the connection pipe 311 and the supply pipe 310. In this case, the flow rate of the thermal energy supplied to the central heat supply unit 200 may be measured through the

bidirectional calorimeters

400a and 400b.

Therefore, the individual heating and central heating combined system according to the present invention including such a configuration, a thermal energy network system between each individual household or building 100, the central heat supply unit 200 and another individual heat demand unit (not shown) It is possible to build a, and to measure the exact flow rate of the thermal energy, it is possible to buy and sell thermal energy based on this.

On the other hand, as shown in Figure 1, in the pipe 300 connecting the individual generation or building 100 and the central heat supply unit 200, to adjust the flow direction of the thermal energy, 3-way valve (3-

way valves

131 and 131a and

check valves

132 and 132a may be further mounted. Of course, if the device capable of adjusting the flow direction of the thermal energy is not limited thereto.

In addition, the supply pipe 310, the individual generation or building to receive the thermal energy generated from the individual thermal energy generator 110, or to supply the thermal energy generated from the central thermal energy supply device 210 to the individual household or building 100. It may be a configuration connected with (100). The return pipe 320 may supply the heat energy transfer medium to the individual heat energy generator 110 or recover the heat energy transfer medium flowing to the supply pipe 310, and the supply pipe 310 and the individual household or building ( It may be a configuration connected to 100).

As shown in FIG. 1, the return pipe 320 and the individual heat energy generator 110 may be connected to each other by a connection pipe 321 through which a heat energy transfer medium may move. In this case, the

bidirectional calorimeters

In addition, the individual generation or building 100 may be composed of a separate heat energy generator 110 and a separate heat using unit 120, and achieve a specific coupling relationship by the two-way calorimeter (400a, 400b) and three-way valve Can be. Specifically, one side of the three-way valve 131 is connected to the bi-directional calorimeters (400a, 400b), the other side is connected to the individual thermal energy generator 110, the other side may be connected to the individual heat using unit 120 have. In addition, the individual heat energy generator 110 has another three-way valve 131a therein, and may be connected to the supply pipe 310 and the individual heat using part 120 of the central pipe 300. In addition, the supply pipe 310 of the central pipe 300 may be connected to the individual heat using portion 120 by the connection pipe 312, wherein the connection between the supply pipe 310 and the individual heat using portion 120 The pipe 312 has a check valve 132 that allows only the flow of thermal energy from the supply pipe 310 to the individual heat-use portion 120 is another three-way valve 131a inside the individual heat energy generator 110. And the individual heat use part 120 may be mounted on the supply pipe side, that is, upstream side from the point where it is connected.

In FIG. 1, only one heating unit for each household is shown for the sake of simplicity, but in the case of a multi-family housing such as an industrial complex group of buildings or an apartment, a plurality of household heating units for a plurality of individual households or buildings are provided. to be.

Referring to FIG. 2, the individual thermal energy and central thermal energy supply connection system 500 according to the present exemplary embodiment may be configured to include two or more individual households or buildings 100.

Specifically, as shown in Figure 2, the individual thermal energy and central thermal energy supply system 500 is composed of two or more individual households or buildings 100 industrial complex building group or apartment house 100 'and the central piping ( 300 may be connected to each other to implement the purchase and sale of thermal energy. The industrial complex building group or apartment house 100 ′ shown in FIG. 2 may be replaced by another large-scale housing complex, apartment complex, industrial complex, or city.

Therefore, the individual heating and central heating combined system according to the present invention including such a configuration, it is possible to manage the heat energy purchase and sales more and more stable. A more detailed description of the method for managing the purchase and sale of thermal energy using the individual thermal energy and the central thermal energy supply connection system 500 according to the present invention will be described later.

3 and 4 are conceptual views of the bidirectional calorimeter according to the present invention.

First, referring to FIG. 3, a bidirectional calorimeter 400a according to an embodiment of the present invention may include a first

branch pipe part

411a and 421a and a second branch pipe part branched on the

pipes

410a and 420a. 412a, 422a, a first flow meter 441a, a second flow meter 442a, and a controller 450a.

This configuration is the same as the configuration of the invention disclosed in the applicant No. 10-2012-0126295 filed by the present applicant, the present invention can be applied by adopting the bidirectional calorimeter disclosed in the application number 10-2012-0126295.

Specifically, the first

branch pipe parts

411a and 421a and the second

branch pipe parts

412a and 422a may include the first three-way valve 431a and the second three-way valve 432a mounted on the

pipe lines

410a and 420a. It may be a structure branched by.

The first flow meter 441a may be mounted on the first

branch pipe parts

411a and 421a to measure the flow rate of the fluid flowing through the first

branch pipe parts

411a and 421a, and the second flow meter 442a may be used. The flow rate of the fluid flowing through the second

branch pipe parts

412a and 422a and flowing through the second

branch pipe parts

412a and 422a may be measured. More specifically, the first flow meter 441a and the second flow meter 442a are not particularly limited as long as they can measure the flow rate of the internal fluid, but may be, for example, an impeller flow meter. In addition, the bidirectional calorimeter according to the present invention includes a temperature measuring unit for measuring the temperature of the heat energy in the

first branch pipe

411a, 421a or the

second branch pipe

412a, 422a; And a calculator configured to calculate a calorific value based on the flow rate measured by the first flow meter 441a or the second flow meter 442a and the temperature measured by the temperature measurer. More specifically, the calorific value may be calculated using two temperature differences by installing a separate temperature sensor connected to a temperature (return temperature) and an operation unit (not shown) measured inside the bidirectional calorimeter.

In addition, as shown in FIG. 3, the controller 450a may change the states of the first three-way valve 431a and the second three-way valve 432a to control the flow direction of the fluid.

On the other hand, referring to Figure 4, the bidirectional calorimeter 400b according to another embodiment of the present invention, the

first branch pipe

411b, 422b and the second branch pipe branched in both directions on the pipe (410b, 420b) It may be configured to include a portion (412b, 421b), four check valves (431b, 432b, 433b, 434b) and the flow meter (440b).

Specifically, the first check valve 431b and the fourth check valve 434b may be mounted to the first

branch pipe parts

411b and 422b to control the flow direction of the internal fluid. In addition, the second check valve 432b and the third check valve 433b may be mounted to the second

branch pipe parts

412b and 421b to control the flow direction of the internal fluid.

In addition, the flow meter 440b may be mounted to the first

branch pipe parts

411b and 422b and the second

branch pipe parts

412b and 421b to measure the flow rate of the internal fluid. More specifically, the flow meter 440b is not particularly limited as long as it can measure the flow rate of the internal fluid, but may be, for example, an impeller flow meter.

As mentioned above, the

bidirectional calorimeters

400a and 400b according to the present invention may control the flow of fluid using three-

way valves

431a and 432a or

check valves

431b, 432b, 433b and 434b. The flow of fluid controlled by the three-

way valves

431a and 432a or the

check valves

431b, 432b, 433b, and 434b can be accurately measured through the

flowmeters

441a, 442a, and 440b.

As another embodiment of the present invention, the bidirectional calorimeter includes a check valve disposed in different directions in the branch pipe and each flow meter (not shown) installed in each branch line as shown in FIG. 1. Can be.

In addition, the bidirectional calorimeter according to the present invention is not limited to those shown in FIGS. 3 and 4, and is provided with a three-way valve or a check valve to control the flow of the fluid flowing through the inside of the pipe located on the pipe. If the configuration can measure the flow rate of the fluid is not particularly limited.

Accordingly, the individual heat energy and central heat energy supply linkage system 500 according to the present invention including the

bidirectional calorimeters

400a and 400b having such a structure may be used to purchase heat energy between individual households or buildings 100 and the central heat supply unit 200. Accurately measure sales.

5 is a flowchart illustrating a method of operating a star heat energy and a central heat energy supply linkage system according to an embodiment of the present invention, and FIGS. 6 to 9 show star heat energy according to an embodiment of the present invention. A schematic diagram showing the operation of the central thermal energy supply linkage system is shown.

Referring to these drawings, the star thermal energy and the central thermal energy supply system operating method (S100) according to the present embodiment,

(a) When there is no demand for thermal energy of the individual household or building 100 and there is no intention of selling the thermal energy (S110), as shown in FIG. 6, the operation of the individual thermal energy generator 110 and the individual household or building 100 is performed. Stopping (S115);

(b) When there is no demand for thermal energy of an individual household or building 100 and there is a willingness to sell thermal energy (S120), as shown in FIG. 7, a heat energy transfer medium is supplied through a return pipe 320 and a connection pipe 321. It can be operated in the process of producing thermal energy using the individual thermal energy generating device 110, selling the thermal energy by supplying the thermal energy to the connection pipe 311 and the supply pipe 310 (S125),

(c) When there is a demand for thermal energy of an individual household or building 100 and there is no intention to sell thermal energy (S130), as shown in FIG. 8, the individual thermal energy generator 110 produces thermal energy to produce an individual household or building ( It may be operated in the process (S135) of supplying to the individual heat using unit 120 of 100).

In addition, the thermal energy and the central thermal energy supply system operating method (S100), as shown in the flow chart of FIG.

(d) When the heat energy produced by the individual heat energy generator 110 is insufficient to meet the heat energy demand required by the generation (S140), as shown in FIG. 9, the supply pipe 310 and the connection pipe 312 Receiving the heat energy through the step of supplying to the individual heat-use unit 120 of the individual household or building 100 (S145); may further include.

Meanwhile, the return pipe 320 and the individual heat energy generator 110 may be connected to each other by a connection pipe 321 through which the heat energy transfer medium may move. In this case, the

bidirectional calorimeters

Therefore, according to the individual heat energy and the central heat energy supply linked system according to the present embodiment, by installing a heat energy generating device in each individual heat using unit, by installing a bidirectional calorimeter in the central pipe connecting the individual heat using unit and the central heat supply unit, It is possible to build a thermal energy network system between each heat energy demand side, supply side and another demand side, to measure the accurate flow rate of heat energy, and to purchase and sell heat energy based on this. In addition, according to the method of operating the individual thermal energy and the central thermal energy supply connection system according to the present invention, it has a technical advantage that can efficiently operate the thermal energy network system capable of purchasing and selling thermal energy.

In the foregoing detailed description of the invention, only specific embodiments thereof have been described. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. Should be.

As described above, according to the individual heat energy and central heat energy supply linked system according to the present invention, a heat energy generator is installed in each individual household or building, and a bidirectional calorimeter is installed in the central pipe connecting the individual heat use unit and the central heat supply unit. By installing, it is possible to build a thermal energy network system between each of the heat energy demand side, supply side and another demand side, to measure the accurate flow rate of heat energy, and to purchase and sell the heat energy based on this.

In addition, according to the method for operating the individual thermal energy and the central thermal energy supply connection system according to the present invention, it is possible to efficiently operate the thermal energy network system that can be purchased and sold thermal energy.

Claims

One or more individual households or buildings 100 having individual thermal energy generators 110 capable of producing thermal energy;

A central heat supply unit 200 connected to the individual generation or building 100 by a central pipe 300 and having at least one central heat energy supply device 210 capable of producing heat energy; And

One or more mounted on the central pipe 300 connecting the individual households or the building 100 and the central heat supply unit 200, the bi-directional measuring the amount of thermal energy moving in one direction and the other direction inside the central pipe (300) Calorimeters 400a and 400b;

Including,

The central pipe (300), the individual heat energy and central heat energy supply connection system 500, characterized in that consisting of the supply pipe 310 and the return pipe 320 to which the heat energy transfer medium can move.
The method of claim 1,

The individual thermal energy generator 110, a separate heating and central heating combined system, characterized in that the boiler using a fossil or biomass fuel, such as an oil boiler, gas boiler, pellet boiler, etc., or a renewable heat source boiler such as solar heat.
The method of claim 1,

In the pipe 300 connecting the individual households or the building 100 and the central heat supply unit 200, a 3-way valve (131) and a check valve (check) to control the flow direction of the thermal energy. valve, 132) is further equipped with individual thermal energy and central thermal energy supply linkage system.
The method of claim 1,

The supply pipe 310 may receive the thermal energy generated from the individual thermal energy generator 110, or may supply the thermal energy generated from the central thermal energy supply device 210 to the individual household or the building 100. 100),

The return pipe 320 may supply the heat energy transfer medium to the individual heat energy generating device 110 or recover the heat energy transfer medium flowing into the supply pipe 310, or the supply pipe 310 and the individual generation or Individual thermal energy and central thermal energy supply linked system, characterized in that connected to the building (100).
The method of claim 1,

The return pipe 320 and the individual heat energy generating device 110 are interconnected by a connection pipe 321 through which the heat energy transfer medium can move,

The bidirectional calorimeters 400a and 400b are mounted on the connection pipe 321 so as to measure the amount of heat energy of the heat energy transfer medium flowing from the return pipe 320 to the individual heat energy generator 110. Thermal energy and central thermal energy supply system.
As a method of operating the individual thermal energy and the central thermal energy supply connection system 500 according to any one of claims 1 to 5,

(a) stopping the operation of the individual heat energy generator 110 when there is no demand for heat energy of the individual household or building 100 and there is no intention of selling heat energy;

(b) When there is no demand for thermal energy of an individual household or building 100 and there is a willingness to sell heat energy, the individual thermal energy generator 110 is supplied with a thermal energy transfer medium through the return pipe 320 and the connection pipe 321. Producing heat energy using the same and supplying heat energy to the connection pipe 311 and the supply pipe 310 to sell the heat energy; And

(c) When there is a demand for heat energy of an individual household or building 100 and there is no intention to sell heat energy, the individual heat use unit 120 of the individual household or building 100 by producing heat energy using the individual heat energy generator 110. Process of feeding on;

Individual thermal energy and the central thermal energy supply linked system operating method comprising a.
The method of claim 6,

The return pipe 320 and the individual heat energy generating device 110 are interconnected by a connection pipe 321 through which the heat energy transfer medium can move,

Individual heat energy, characterized in that the bi-directional calorimeter (400a, 400b) is mounted on the connecting pipe 321 to measure the flow rate of the heat energy transfer medium flowing from the return pipe 320 to the individual heat energy generating device 110 And a method of operating a central thermal energy supply link system.
The method of claim 6, wherein the individual thermal energy and the central thermal energy supply linkage system are operated.

(d) In the process (c), if the heat energy produced by the individual heat energy generator 110 is insufficient to meet the heat energy demand required by the generation, through the supply pipe 310 and the connection pipe 312 Receiving heat energy and supplying the individual heat-use unit 120 of the individual household or building 100;

Individual thermal energy and the central thermal energy supply linked system operating method further comprising.