KR20220014580A - System for heating and method thereof - Google Patents

Abstract

The present invention relates to a heating system and a method thereof. One embodiment, in a system for supplying heating to a building composed of a plurality of households, may provide a system comprising: a remote meter reading device which receives data on a household heating use temperature from a heating meter installed in each household, and calculates an average building heating use temperature in the building from the household heating use temperature; a control device for generating a heating supply temperature set value of a heat exchanger according to the building heating use temperature; and a heating water supply device for controlling the heat exchanger according to the heating supply temperature set value and transmitting a heating supply temperature value of the heat exchanger to the control device.

Description

Heating system and method therefor

The present embodiment relates to a technology for controlling the temperature of heating water in a system for supplying heating to a building composed of a plurality of households.

District heating does not install individual heating facilities in various buildings such as apartments, houses, shopping malls, and offices within a certain area, and heats economically produced from large-scale heat source facilities in the form of hot water to the building through a heat pipe buried underground. It is a heating method that is supplied. District heating is a safe system because there is no need to install a heating system with explosion or hazardous elements in each household.

In contrast, in individual heating, the central machine room of the building supplies only water, and each household installs a separate gas or oil boiler for heating and hot water supply. Central heating is a method in which a central machine room installed in a building - for example, an apartment complex - operates a boiler to produce heat, and supplies heating water for heating and hot water for hot water supply to each household.

A gas meter is used to charge the heat consumption of individual heating, and a heating meter and a hot water supply meter are installed in each household for the purpose of billing the amount of heating and hot water used in central heating and district heating. A meter that measures heat consumption as a flow rate is called a flow meter, and a meter that measures heat consumption is called a heating meter. Here, a meter that measures the amount of heat used for heating is defined as a heating meter.

Since district heating uses cogeneration plants or resource recovery facilities as the main heat source, it is possible to produce high-quality energy with high energy efficiency and eco-friendliness. If necessary, both heating and hot water supply can be used, and it is economically about 22% cheaper than individual city gas heating. In addition, according to the research results of the Energy Economics Research Institute, an energy specialized institution, district heating increases the property value of a house by at least 20 million won to a maximum of 60 million won compared to individual heating.

However, such district heating also has disadvantages. It may be difficult for the central machine room to supply heating water having the same temperature to a plurality of buildings. The temperature of the heating water supplied from the central machine room to each building can change depending on various variables - for example, the movement distance according to the difference in pipe length, the state of pipe insulation or external temperature change - so that the manager can Even if the temperature of the heating water is uniformly set for the building, the temperature of the heating water reaching the building may vary. Also, the conditions of the building itself, such as the structure of the building, can change the temperature of the heating water reaching the building. Above all, the manager is currently in a state where the temperature of the heating water sent to each building is arbitrarily set, but the manager cannot know the temperature used in each building, so it is set arbitrarily. have to have limits.

Furthermore, unless district heating can uniformly control the temperature of the heating water supplied to each building, it is natural that heating water cannot be set to the optimum temperature actually required by each building in consideration of all conditions.

In this regard, the present embodiment intends to provide a heating technology that evenly supplies heating water having the same temperature to several buildings and further supplies heating water having an optimum temperature actually required by each building.

Against this background, an object of the present embodiment is a technology for estimating a building heating use temperature, which is the temperature of heating water used for heating in a building, and reflecting this to set a heating supply temperature indicating the temperature of the heating water supplied to the building is to provide

Another object of the present embodiment is to provide a technology for calculating a building heating use temperature based on data measured by a heating meter installed to measure heating usage in each household.

Another object of the present embodiment is to provide a technology for setting the heating supply temperature by reflecting the outdoor temperature together with the building heating use temperature.

In order to achieve the above object, in one embodiment, in a system for supplying heating to a building composed of a plurality of households, data on the household heating use temperature is received from a heating meter installed in each household, and in the building a remote meter reading device for calculating an average building heating use temperature from the household heating use temperature; a control device for generating a set value of a heating supply temperature of a heat exchanger according to the heating use temperature of the building; and a heating water supply device for controlling the heat exchanger according to the heating supply temperature set value and transmitting a heating supply temperature value of the heat exchanger to the control device.

In the system, the remote meter reading device may receive data on the heating water supplied to each household from the heating meter.

In the system, the data on the heating water supplied to each household includes the household heating use temperature, the household heating return temperature indicating the temperature of the heating water returned through each household, or the heating water supplied to each household or returned through each household. It may include a household heating use flow rate indicating the flow rate of heating water.

In the system, the remote meter reading device receives data on the continuous operation time of the heating meter from the heating meter, and if the continuous operation time is equal to or greater than a predetermined value, calculates the household heating use temperature and the building heating use temperature available for the course.

In the system, when the heating meter does not operate or the continuous operation time is less than a predetermined value, the remote meter reading device may exclude the household heating use temperature from the building heating use temperature calculation process.

In the system, the control device sets a reference heating supply temperature based on external air compensation control and reflects a weight to the reference heating supply temperature to finally set the heating supply temperature, or input the reference heating supply temperature from a user By receiving and finally setting the heating supply temperature by correcting the reference heating supply temperature, it is possible to generate the heating supply temperature set value.

In the system, the remote meter reading device may calculate the building heating use temperature by averaging the household heating use temperature.

In the system, the household heating use temperature may include the temperature of the heating water supplied to each household for a predetermined time or longer.

In the system, the control device may set the heating supply temperature by reflecting the outdoor temperature together with the building heating use temperature.

In the system, the heating meter may be installed in each household and periodically transmit data on heating water supplied to each household and data on a continuous operation time of the heating meter to the remote meter reading device.

Another embodiment provides a method for a system to supply heating to a building composed of a plurality of households, the method comprising: receiving data on a household heating use temperature from a heating meter installed in each household; calculating a building heating use temperature averaged in the building from the household heating use temperature; generating a heating supply temperature set value of a heat exchanger according to the building heating use temperature; It provides a method comprising controlling the heat exchanger according to the heating supply temperature set value and transmitting a heating supply temperature value of the heat exchanger.

In the method, the heating meter may include collecting data on heating water supplied to each household.

In the method, requesting the heating meter to transmit data on the heating water supplied to each household; and transmitting, by the heating meter, the collected data on the heating water supplied to each household in response to the request.

In the method, the receiving may include receiving data on the continuous operation time of the heating meter, and if the continuous operation time is equal to or greater than a predetermined value, data on the household heating use temperature may be received.

In the method, in the generating, the heating supply temperature set value may be generated by reflecting the outdoor temperature together with the building heating use temperature.

As described above, according to this embodiment, heating water having the same building heating use temperature can be uniformly supplied to a plurality of buildings by setting the heating supply temperature by reflecting the building heating use temperature.

And, according to this embodiment, by setting the heating supply temperature by reflecting the building heating use temperature, heating water having the optimum temperature actually required by each building can be customized to the consumer.

And, according to this embodiment, it is possible to more accurately supply customized heating water to the consumer by setting the heating supply temperature by reflecting the building heating use temperature together with the outdoor temperature.

1 is a block diagram of a district heating system according to an embodiment.
2 is a connection diagram of devices disposed in a machine room in a district heating system according to an exemplary embodiment.
3 is a block diagram of a heating system according to an embodiment.
4 is a block diagram of a heating water supply device according to an embodiment.
5 is an exemplary view showing the actual building heating use temperature required for heating for a plurality of buildings.
6 is an exemplary diagram in which the control device according to an embodiment performs external air compensation.
7 is a flowchart of a first example in which a heating system according to an embodiment operates.
8 is a flowchart of a second example in which a heating system according to an embodiment operates.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is formed between each component. It should be understood that elements may also be “connected,” “coupled,” or “connected.”

1 is a block diagram of a district heating system according to an embodiment.

Referring to FIG. 1 , the district heating system 1 may include a heat production facility 10 , a machine room 20 , and a building 30 .

The heat production facility 10 may be a heat source facility that produces heat necessary for supplying heating to the building 30 . Since the heat production facility 10 produces heat on a large scale and supplies heat to the building 30 through the machine room 20, the heating supply method of district heating can contribute to being more economical than individual boiler heating and central boiler heating. . The heat production facility 10 uses water as a medium to transfer heat. Hereinafter, water supplied for district heating by the heat production facility may be referred to as district heating water, and water used for heating in a building is heating water. can be named numerically.

The machine room 20 may transfer the heat produced in the heat production facility 10 to the building 30 . Specifically, the machine room 20 includes a heat exchanger 20-1, and the heat exchanger 20-1 receives heat from the heat production facility 10 and transfers it to the building 30, and in this process, the primary side The pipe 21 and the secondary side pipe 22 can be used. In the heat exchanger 20 - 1 , a portion of the primary side pipe 21 may be referred to as a primary side, and a portion of the secondary side pipe 22 may be referred to as a secondary side, respectively. The heat on the primary side, that is, the heat supplied from the heat production facility 10 to the heat exchanger 20-1, can

The building 30 may receive heat from the secondary side from the heat exchanger 20 - 1 of the machine room 20 through the secondary side pipe 22 and supply it back to each household. The building 30 may be assumed to be built alone, but is not limited thereto and may be understood as any one of a plurality of buildings 30 built together in a complex.

Looking at the process of heat transfer between the primary side and the secondary side, the heat exchanger 20-1 may transfer the heat of the primary side district heating water to the secondary side heating water having a relatively low temperature.

The heat production facility 10 may supply district heating water to the machine room 20 through the primary side pipe 21 . The district heating water entering the machine room 20 through the primary pipe 21 is the primary district heating supply water (W _1i ), and the district heating water coming out of the machine room 20 is the primary district heating return water (W _1o ). , can be named respectively. And the heating water entering the machine room 20 through the secondary side pipe 22 is the secondary side heating return water (W _2i ), and the heating water coming out of the machine room 20 is the secondary side heating supply water (W _2o ), respectively. can be In the heat exchanger 20-1, the primary-side district heating supply water (W _1i ) may transfer heat to the secondary-side heating return water (W _2i ).

Specifically, the secondary side heating return water (W _2i ) entering the heat exchanger (20-1) from the building (30) can receive heat from the primary side district heating supply water (W _1i ) through the heat exchanger (20-1). have. The temperature of the secondary side heating return water (W _2i ) of approximately 45 ° C increases to become the secondary side heating supply water (W _{2o ) of approximately 60 ° C, and the secondary side heating supply water (W 2o )} can be supplied to the building 30 . have. At the same time, the temperature of the primary district heating supply water (W _1i ) of approximately 115 °C is lowered to become the primary district heating return water (W _{1o) of approximately 65 °C, and the primary district heating return water (W 1o )} is the heat production facility (10 ) can be returned.

In this figure, the primary-side district heating supply water (W _1i ) and the secondary-side heating supply water (W _2o ) having a higher temperature than before are shown as a first pattern, and the primary-side district heating return water having a lower temperature than before (W) _1o ) and secondary side heating return water (W _2i ) By showing the second pattern, a change in temperature may appear.

2 is a connection diagram of devices disposed in a machine room in a district heating system according to an exemplary embodiment.

Referring to FIG. 2 , heating water and hot water supply are made in the machine room 20 and may be supplied to each demanding place.

The machine room 20 may include a heating heat exchanger 20-1A. The heating heat exchanger 20 - 1A may supply heating water to the heating demand unit 210 (refer to SHS, space heating supply). The heating demand unit 210 is a place that requires heating, and may typically correspond to a building such as a house or a business facility. The heating heat exchanger 20 - 1A may recover heating water returning through the heating demand unit 210 (refer to SHR, space heating return). The temperature sensor 20 - 2 may measure the temperature of the heating water entering the heating demand unit 210 and the temperature of the heating water returning from the heating demand unit 210 .

A differential pressure valve (20-3, DPV: differential pressure valve) measures the pressure difference between the heating water supplied to the heating demand unit 210 and the heating water returning through the heating demand unit 210, and the measured pressure difference It can be closed (closed) or opened (open) depending on the. For example, the differential pressure valve 20 - 3 may be set to a pressure difference of a predetermined value. When the measured pressure difference is higher than the predetermined value, the differential pressure valve 20-3 may be opened, and if the measured pressure difference is lower than the predetermined value, the differential pressure valve 20-3 may be closed.

The machine room 20 may include a hot water heat exchanger 20-1B. The hot water supply heat exchanger 20-1B may supply hot water supply to the hot water supply demand unit 220 (DHWS: domestic hot water supply). The hot water supply demand unit 220 is a place that requires hot water supply, and may typically correspond to a building such as a house or a business facility. The hot water supply heat exchanger (20-1B) may recover hot water supply returning through the hot water supply demand unit 220 (DHWR: domestic hot water return). The temperature sensor 20 - 2 may measure the temperature of hot water entering the hot water demand unit 220 and the temperature of hot water returning from the hot water demand unit 220 .

The machine room 20 may include a preheat exchanger 20-1C. The preheat exchanger (20-1C) transfers the water flowing in from the water supply unit 230 to the hot water supply heat exchanger (20-1B) to supplement the hot water supply for the purpose of re-utilizing the heating water returned due to a lower temperature in the heating demand unit. It is heated before entering and is used to increase heat use efficiency. Here, the water supply unit 230 may be a separate water supply facility outside the machine room 20 .

The differential pressure control valve (20-5, PDCV: pressure differential control valve) can constantly adjust the pressure difference between the supply water and the return water. Therefore, the differential pressure control valve 20-5 can solve the problem of flow imbalance or excess flow between the places of use. That is, the differential pressure control valve 20-5 may measure a pressure difference according to the flow rate difference, and may be closed or opened according to the measured pressure difference. In this figure, the water directed to the differential pressure control valve 20-5 moves to some preheat exchangers 20-1C and may be used for preheating the hot water. And the water passing through the differential pressure control valve (20-5) moves to the heating heat exchanger (20-1A) to be used for heating water, or it can move to the hot water heat exchanger (20-1B) and be used for heating the hot water. have.

3 is a block diagram of a heating system according to an embodiment.

Referring to FIG. 3 , the heating system 100 may include a remote meter reading device 110 , a control device 120 , a heating water supply device 130 , and a heating meter 140 .

The remote meter reading device 110 may receive data on the household heating use temperature indicating the temperature of the heating water supplied to each household from the heating meter 140 . The data on the household heating use temperature may be understood as data measured by the heating meter 140 with respect to the heating water. For example, data on household heating use temperature includes household heating use temperature, household heating return temperature indicating the temperature of heating water returning through each household, or the flow rate of heating water supplied to or returning through each household. can do.

The household heating use temperature and household heating return temperature are the temperatures for the heating water reaching each household in the building 30 from the machine room 20, and may be different at the measurement positions. That is, the household heating use temperature may be the temperature measured in the path where the heating water enters the household, and the household heating return temperature may be the temperature measured in the path where the heating water returns from the household.

In the case of heating water, since the heating water is not consumed in each household, both the flow rate entering the household and the flow rate returning from the household may be the same.

Also, the remote meter reading device 110 may receive data about the heating meter 140 itself from the heating meter 140 . The data on the heating meter may be understood as data on the operating state or function of the heating meter 140 . For example, the data on the heating meter may include a continuous operation time indicating in time whether the heating meter 140 maintains the state in which the heating water flows.

In addition, the remote meter reading device 110 may calculate a building heating use temperature indicating the temperature of the heating water actually used to heat the building 30 from the household heating use temperature. The building heating use temperature may be understood as a temperature required to heat the entire building 30 . The household heating use temperature is the temperature for one household in the building 30 and is measured with respect to the heating water from the pipe entering each household, whereas the building heating use temperature is the temperature for one building in which a plurality of households are gathered, and each It can be measured or calculated from the household heating temperature used by the household. So, the manager of the building 30 monitors the building heating use temperature and, if the heating water temperature is too high or too low, the manager of the machine room 20 to lower or increase the heating supply temperature of the heating water supplied from the machine room 20 can ask for

In order to calculate the building heating use temperature, the remote meter reading device 110 may receive a plurality of household heating use temperatures for a plurality of households from the heating meter 140, and may average the heating use temperatures of the plurality of households. The remote meter reading device 110 may regard this average value as the building heating use temperature.

Here, the remote meter reading device 110 may calculate the building heating use temperature using the household heating use temperature only when the heating meter 140 operates for a certain period or longer. That is, the remote meter reading device 110 may calculate the building heating use temperature by using the household heating use temperature of the household only when the household uses heating water.

If the remote meter reading device 110 calculates the building heating use temperature using the household heating use temperature of the household until the household does not use heating water, there may be an error in the calculated building heating use temperature. For example, it is considered that the household is heated even though heating is not used, and the calculated building heating use temperature may be lower than the actual building heating use temperature. In order to prevent this in advance, the remote meter reading device 110 may reflect the household heating use temperature in the calculation of the building heating use temperature only when the household uses heating water for a certain period of time or more.

Therefore, the remote meter reading device 110 may calculate the building heating use temperature by using only the data on the household heating use temperature of the household using the heating water. That is, the remote meter reading device 110 may obtain only data on the household heating use temperature for the household that uses heating water, and consider the average value of the obtained household heating use temperature as the building heating use temperature.

For example, the remote meter reading device 110 determines whether or not the household uses heating water through the continuous operation time of the heating meter 140, and uses only the heating meter 140 of the household that uses the heating water to heat the household. By receiving the data on the temperature, it is possible to calculate the heating use temperature of the building.

Specifically, the remote meter reading device 110 may receive data on the continuous operation time from the heating meter 140 . If the continuous operation time is less than a predetermined value, the remote meter reading device 110 may not include data on the household heating use temperature in the building heating use temperature calculation. Alternatively, if the continuous operation time is a value of 0 because the heating meter 140 does not operate, the remote meter reading device 110 may not be included in the calculation of the building heating temperature. Here, the continuous operation time may be understood as a time during which the household heating use flow rate measured by the heating meter 140 is maintained higher than a value of 0 (zero). On the other hand, if the continuous operation time is equal to or greater than a predetermined value, the remote meter reading device 110 may include the data in the calculation of the building heating use temperature. Here, the remote meter reading device 110 may use only data for the household heating use temperature of the heating meter 140 having a continuous operation time equal to or greater than a predetermined value.

As another example, the remote meter reading device 110 receives data on the household heating use temperature and data on the heating meter - for example, continuous operation time - from the heating meters 140 of all households, and through the continuous operation time It is possible to determine whether a household uses heating water or not, extract only the household heating usage temperature of the household using heating water, and calculate the building heating usage temperature. The remote meter reading device 110 may determine whether the household uses heating water through the continuous operation time through the above-described determination process.

The control device 120 may remotely control the heating water supply device 130 . The heating water supply device 130 may include a facility for supplying heating water—for example, a sensor, a pump or a valve, and a digital controller for controlling the facility. The control device 120 may receive data collected from the digital controller and transmit a control command to the digital controller. The control device 120 may correspond to a kind of central control management system (CCMS) that centrally controls a facility for supplying heating water through a digital controller.

The control device 120 may set a heating supply temperature indicating the temperature of the heating water supplied to the building 30 . Here, the control device 120 may set the heating supply temperature by receiving data on the building heating use temperature from the remote meter reading device 110 and generating a heating supply temperature set value by reflecting the building heating use temperature. For example, the control device 120 may set the heating supply temperature to be the same as the building heating use temperature estimated by the remote meter reading device 110 or similarly within a certain range.

In addition, the control device 120 may set the heating supply temperature by reflecting the outdoor temperature together with the building heating use temperature. For example, the control device 120 primarily sets the heating supply temperature to a value matched in advance according to the outdoor temperature, and sets the primary heating supply temperature to the building heating use temperature estimated by the remote meter reading device 110 . and can be set secondarily similarly within a certain range.

The heating water supply device 130 may supply heating water from the machine room 20 to the building 30 . The heating water supply device 130 may receive a heating supply temperature set value from the control device 120 and control the amount of heat exchange according to the heating supply temperature set value. Here, the heating water may be a secondary heating supply water (W _2o ) of approximately 50 to 60°C. The heating water enters the building 30 through the secondary side pipe 22 and may move to each household.

Also, the heating water supply device 130 may transmit the heating water supply result to the control device 120 . The heating water supply device 130 may transmit the heating supply temperature value of the heat exchanger to the control device 120 . The heating water supply device 130 may measure the temperature of the heating water exiting the heat exchanger and transmit the measured value to the control device 120 .

The heating meter 140 may be connected to the remote meter reading device 110 through a wired/wireless network to exchange data. When the heating meter 140 receives a request to transmit data from the remote meter reading device 110 , the heating meter 140 may transmit the data to the remote meter reading device 110 . For example, the heating meter 140 may transmit data on the household heating use temperature and data on the heating meter to the remote meter reading device 110 .

In addition, the heating meter 140 may periodically receive the request from the remote meter reading device 110 , and may transmit data to the remote meter reading device 110 in response thereto.

In addition, the heating meter 140 may be located closest to the pipe leading to each household. At this location, the heating meter 140 may collect data on the household heating use temperature. In addition, the heating meter 140 may collect data on the operation of the heating meter - for example, continuous operation time.

4 is a block diagram of a heating water supply device according to an embodiment.

Referring to FIG. 4 , in order to supply heating water from the machine room to the building, the heating water supply device 130 includes a direct digital controller (131, DDC) and devices 132-1 to 132- 9) may be included. The heating water supply device 130 and the devices 132-1 to 132-9 controlled thereby may all be installed in the machine room.

As devices controlled by the heating water supply device 130, a flow sensor 132-1, a pressure sensor 132-2, a temperature sensor 132-3, and a temperature control valve 132-4, TCV: temperature control valve ), pump (132-5), district heating calorimeter (132-6) for measuring total heat consumption, differential pressure control valve (132-7), heat exchanger (132-8) and exhaust fan (132-9) It may exist in the machine room. The temperature control valve 132-4 may detect a temperature of a control target and control the temperature to adjust the flow rate of a calorie medium such as steam or hot water.

The direct digital controller 131 may include interfaces such as an analog input unit (AI), an analog output unit (AO), a digital input unit (DI), and a digital output unit (DO) to exchange signals with various types of devices. have. The controlled devices 132-1 to 132-9 are analog input/output units (AI, AO) or digital input/output units (DI, DO) depending on the format of data exchanged with the direct digital controller 131 , that is, analog or digital. ) can be connected to

5 is an exemplary view showing the actual building heating use temperature required for heating for a plurality of buildings.

Referring to FIG. 5 , when any one machine room manages heating for a complex in which a plurality of buildings are gathered, the actual temperature used for heating the building may be different for each building. In this drawing, an apartment complex may be shown as an example. The horizontal axis of the graph may indicate the apartment building (HOUSE_ID), and the vertical axis may indicate the actual building heating temperature (TEMPERATURE) of each apartment.

For example, if there are apartments from 101 to 116, the actual heating temperature in each building may be different. Copper 101 is 50°C, while copper 112 is 47°C, which may be lower. The difference in operating temperature between Buildings 101 and 112 may originate from the distance that heating water travels from the machine room to each apartment, the direction or area of the apartment, the floor height of each apartment unit, and complaints about heating requests from households. As the distance to the machine room is longer in the case of 112 than in 101, the actual heating temperature of the building in 112 may be lower. This is because heat may be consumed due to heat loss while the heating water is moving. Alternatively, if Building 112 is standing in a direction that receives good sunlight or if the area in contact with the outside air of Building 112 is large, the heating use temperature of the building may be lower because the need for heating is small. Alternatively, if the household in Building 101 specifically requests the machine room to increase the temperature of the heating water, the operating temperature in Building 101 may be higher than in Building 112.

Even if the machine room sets the heating supply temperature to the same temperature and supplies heating to each building, there may be variations in the actual building heating use temperature of each building due to various variables as described above. Therefore, in the present embodiment, the heating use temperature of a building may be estimated using the household heating use temperature collected from a plurality of households in a building, and the heating supply temperature may be adjusted based on the estimated building heating use temperature. The machine room can then adjust the heating supply temperature to each building so that the building heating usage temperature for all buildings is uniform (removing the difference between the building heating usage temperatures between buildings). Alternatively, the machine room may adjust the heating supply temperature for each building so that the building heating use temperature for each building varies according to individual characteristics (customer-tailored building heating).

And through the adjustment of the heating supply temperature based on the estimated building heating use temperature, this embodiment increases the connection between the heating meter, the remote meter reading device, and the machine room (control device and heating water supply device), Additional costs can be saved by using the heating meter as it is.

6 is an exemplary diagram in which the control device according to an embodiment performs external air compensation.

Referring to FIG. 6 , the control device may set the heating supply temperature by reflecting the outside temperature. The manager of the machine room can control the outdoor air compensation through the outdoor air compensation control panel. In this figure, 'external air compensation ON/OFF' of the outdoor air compensation control panel may indicate whether outdoor air compensation is performed (ON) or not performed (OFF). 'Outside air compensation heating supply temperature' may represent the value of the heating supply temperature after outdoor air compensation. 'Setting the heating supply temperature' may indicate a value directly input by the administrator for the heating supply temperature.

For example, the control device may set the range of the outside air temperature from -10°C to 18°C, and set the heating supply temperature to a value between 35.0°C and 40.5°C. If the outside temperature is lower than -10℃, the control device can be fixed at 40.5℃. Alternatively, the control device may be constantly fixed at 35.0°C when the outside temperature is higher than 18°C. Then, the control device can designate a value between 35.0°C and 40.5°C as the outside air temperature changes and display it on the 'Outside Compensation Heating Supply Temperature' of the outside air compensation control panel. If the manager of the machine room does not perform outdoor air compensation, you can set 'Outside Air Compensation ON/OFF' to OFF and directly enter 43.0℃ in 'Set Heating Supply Temperature'.

The control device 120 may set the heating supply temperature by reflecting the outside air temperature together with the building heating use temperature. For example, the control device 120 preliminarily calculates the heating supply temperature reflecting the building heating use temperature, and reflects the outdoor air compensation heating supply temperature in the preliminarily calculated heating supply temperature to calculate the final heating supply temperature. can

7 is a flowchart of a first example in which a heating system according to an embodiment operates.

Referring to FIG. 7 , the system may estimate a building heating use temperature based on the household heating use temperature measured in the household, and set a heating supply temperature based on the estimated building heating use temperature. In this way, the system can supply heating water with a uniform temperature to each building or heating water with a specific temperature for each building.

The heating meter 140 installed in each of a plurality of households in a building may collect household heating use temperature (step S701).

The remote meter reading device 110 may request the heating meter 140 to transmit data on the household heating use temperature (step S703). The heating meter 140 may transmit data on the household heating use temperature to the remote meter reading device 110 in response to the request (step S705). The remote meter reading device 110 and the heating meter 140 may periodically repeat the request and response.

The remote meter reading device 110 may calculate a building heating use temperature based on the household heating use temperature for a plurality of households (step S707). The remote meter reading device 110 may estimate the average value of the household heating use temperature as the building heating use temperature of one building. The estimated building heating use temperature may be different from the actual building heating use temperature. Instead of the actual building heating use temperature, the remote meter reading device 110 may use the estimated building heating use temperature. The remote meter reading device 110 may indirectly determine the building heating use temperature from the household heating use temperature of each household. The remote meter reading device 110 may transmit the calculated building heating use temperature to the control device 120 (step S709).

The control device 120 may set the heating supply temperature based on the building heating use temperature received from the remote meter reading device 110 and generate a heating supply temperature set value (step S711).

Here, the control device 120 may set the reference heating supply temperature based on the outdoor air compensation control, and may finally set the heating supply temperature by adding or subtracting a weight to the reference heating supply temperature. The weight may be determined based on the estimated building heating use temperature or the actual building heating use temperature. For example, the weight may be previously determined in the form of a look-up table (LUT) with respect to the (estimated or actual) building heating use temperature and stored in the control device 120 . The control device 120 may select a weight corresponding to the building heating use temperature from the lookup table and use it to set the heating supply temperature.

Alternatively, the control device 120 may receive a reference heating supply temperature arbitrarily set by a user (or an administrator), and may set a correction value for the reference heating supply temperature as the final heating supply temperature. The correction value may be preset by a user (or an administrator) and stored in the control device 120 . For example, the correction value may be predetermined in the form of a lookup table with respect to the reference heating supply temperature and stored in the control device 120 . The control device 120 may select a correction value corresponding to the reference heating supply temperature from the lookup table and use it to set the heating supply temperature.

The control device 120 may generate a heating supply temperature set value of the heat exchanger and transmit it to the heating water supply device 130 (step S713).

The heating water supply device 130 may set the heating supply temperature to the heat exchanger according to the heating supply temperature set value received from the control device 120 and supply heating water having a temperature of the heating supply temperature set value to the building. (Step S715).

The heating water supply device 130 may report the result of supplying the heating water to the control device 120 (step S717). The heating water supply device 130 may transmit the flow rate of the supplied heating water or the temperature at which the supplied heating water is measured to the controller 120 . Here, the temperature at which the supplied heating water is measured may be understood as a heating supply temperature value of the heat exchanger.

8 is a flowchart of a second example in which a heating system according to an embodiment operates.

Referring to FIG. 8 , the system may estimate the building heating use temperature by acquiring only the household heating use temperature of the household that actually used the heating water. To this end, the system may determine whether the household uses the heating water according to whether the heating meter 140 operates for a predetermined time.

The remote meter reading device 110 may request a meter reading from the heating meter 140 (step S801). The remote meter reading device 110 may request the heating meter 140 to transmit data on the household heating use temperature and the continuous operation time of the heating meter 140 .

The heating meter 140 installed in each of a plurality of households in one building may measure and collect the household heating use temperature and the continuous operation time of the heating meter 140 (step S803). The heating meter 140 may generate a household heating use temperature value and a continuous operation time value.

The heating meter 140 may transmit data about the household heating use temperature and the continuous operation time of the heating meter 140 - the household heating use temperature value and the continuous operation time value - to the remote meter reading device 110 (step S805) ).

The remote meter reading apparatus 110 may determine whether the continuous operation time is equal to or greater than a predetermined value (step S807). If the continuous operation time is greater than or equal to a certain value, the remote meter reading device 110 considers the heating meter 140 to operate normally and calculates the building heating use temperature using the household heating use temperature collected by the heating meter 140. It can be (YES in step S809). If the continuous operation time is less than a certain value, the remote meter reading device 110 considers that the heating meter 140 has just started operation and calculates the building heating use temperature from the household heating use temperature collected by the heating meter 140 can be excluded from the process. In addition, the remote meter reading device 110 may request the heating meter 140 for data on the continuous operation time again in the next meter reading cycle (NO in step S809).

When it is considered that the heating meter 140 is operating, the remote meter reading device 110 may calculate the building heating use temperature based on the household heating use temperature for a plurality of households (step S809). The remote meter reading device 110 may estimate the average value of the household heating use temperature as the building heating use temperature of one building. The estimated building heating use temperature may be different from the actual building heating use temperature. Instead of the actual building heating use temperature, the remote meter reading device 110 may use the estimated building heating use temperature. The remote meter reading device 110 may indirectly determine the building heating use temperature from the household heating use temperature of each household. The remote meter reading device 110 may transmit the calculated building heating use temperature to the control device 120 (step S811).

The control device 120 may set a heating supply temperature based on the building heating use temperature received from the remote meter reading device 110 and generate a heating supply temperature set value accordingly (step S813). The control device 120 may generate a heating supply temperature set value of the heat exchanger and transmit it to the heating water supply device 130 (step S815). The heating water supply device 130 may set the heating supply temperature to the heat exchanger according to the heating supply temperature set value received from the control device 120 and supply heating water having a temperature of the heating supply temperature set value to the building. (Step S817).

The heating water supply device 130 may report the result of supplying the heating water to the control device 120 (step S819). The heating water supply device 130 may transmit the flow rate of the supplied heating water or the temperature at which the supplied heating water is measured to the controller 120 . Here, the temperature at which the supplied heating water is measured may be understood as a heating supply temperature value of the heat exchanger.

Claims (15)

In the system for supplying heating to a building composed of a plurality of households,
a remote meter reading device that receives data on a household heating use temperature from a heating meter installed in each household, and calculates a building heating use temperature averaged in the building from the household heating use temperature;
a control device for generating a set value of a heating supply temperature of a heat exchanger according to the heating use temperature of the building;
A heating water supply device for controlling the heat exchanger according to the heating supply temperature set value and transmitting a heating supply temperature value of the heat exchanger to the control device
a system containing According to claim 1,
The remote meter reading device is a system for receiving data on heating water supplied to each household from the heating meter. 3. The method of claim 2,
The data on the heating water supplied to each household includes the household heating use temperature, the household heating return temperature indicating the temperature of the heating water returning through each household, or the flow rate of the heating water supplied to or returning through each household. A system including the household heating usage flow rate indicating 4. The method of claim 3,
The remote meter reading device receives data on the continuous operation time of the heating meter from the heating meter, and when the continuous operation time is equal to or greater than a predetermined value, the system using the household heating use temperature in the process of calculating the building heating use temperature . 5. The method of claim 4,
The remote meter reading device is a system for excluding the household heating use temperature from the building heating use temperature calculation process when the heating meter does not operate or the continuous operation time is less than a predetermined value. According to claim 1,
The control device sets a reference heating supply temperature based on outdoor air compensation control and finally sets the heating supply temperature by reflecting a weight to the reference heating supply temperature, or receives the reference heating supply temperature from a user and receives the reference heating supply temperature A system for generating the heating supply temperature set value by finally setting the heating supply temperature by correcting the supply temperature. According to claim 1,
The remote meter reading device is a system for calculating the building heating use temperature by averaging the household heating use temperature. 8. The method of claim 7,
The household heating use temperature is a system including the temperature of the heating water supplied to each household for a certain period of time or longer. According to claim 1,
The control device is a system for generating the heating supply temperature set value by reflecting the outdoor temperature together with the building heating use temperature. According to claim 1,
The heating meter is installed in each household and periodically transmits data on the heating water supplied to each household and data on the continuous operation time of the heating meter to the remote meter reading device. A method for the system to supply heating to a building composed of a plurality of households,
Receiving data on household heating use temperature from a heating meter installed in each household;
calculating a building heating use temperature averaged in the building from the household heating use temperature;
generating a heating supply temperature set value of a heat exchanger according to the building heating use temperature;
and controlling the heat exchanger according to the heating supply temperature set value and transmitting a heating supply temperature value of the heat exchanger. 12. The method of claim 11,
and collecting, by the heating meter, data on heating water supplied to each household. 13. The method of claim 12,
requesting the heating meter to transmit data on heating water supplied to each household; and
and transmitting, by the heating meter, the collected data on the heating water supplied to each household according to the request. 12. The method of claim 11,
In the receiving step, data on the continuous operation time of the heating meter is received, and when the continuous operation time is equal to or greater than a predetermined value, the household heating use temperature is used in the process of calculating the building heating use temperature. 12. The method of claim 11,
In the generating, the system generates the heating supply temperature set value by reflecting the outdoor temperature together with the building heating use temperature.

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