KR20170002907A - Method and system of warm water creation module the control - Google Patents

Method and system of warm water creation module the control Download PDF

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Publication number
KR20170002907A
KR20170002907A KR1020150092833A KR20150092833A KR20170002907A KR 20170002907 A KR20170002907 A KR 20170002907A KR 1020150092833 A KR1020150092833 A KR 1020150092833A KR 20150092833 A KR20150092833 A KR 20150092833A KR 20170002907 A KR20170002907 A KR 20170002907A
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South Korea
Prior art keywords
flow rate
slave
master
information
control
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KR1020150092833A
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Korean (ko)
Inventor
최정환
이상희
김신호
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린나이코리아 주식회사
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Priority to KR1020150092833A priority Critical patent/KR20170002907A/en
Publication of KR20170002907A publication Critical patent/KR20170002907A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1081—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water counting of energy consumption

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

Disclosed are a method and a system for controlling a hot water generation module. The system for controlling a hot water generation module comprises: slave devices; a slave system for determining a flow rate of the slave devices, inputting the flow rate to a control unit, and transmitting determination information to a master system; and the master system comprising a flow rate determination and calculation unit for determining and calculating the total flow rate of the slave devices, a unit for determining the available number of slave devices to be operated according to the calculated flow rate, and a control unit transmitting a control command to the slave devices, so as to determine the total amount of water in a boiler or water heater in operation and increase operation efficiency by operating the boiler or water heater as many as required for the total water supply.

Description

METHOD AND SYSTEM FOR WARM WATER CREATION MODULE THE CONTROL

The present invention relates to a control system and method for a hot water generating module for judging an overall water supply amount of an operating boiler or a water heater and operating a boiler or a water heater for a required number of times as much as a total water supply amount.

When a small boiler or a water heater is connected to a large boiler or a large water heater capacity, a small boiler or a water heater (hereinafter also referred to as a 'hot water generating module') is disposed and a plurality of boilers or water heaters It is composed of a slave system (master-slave system) and controlled by a cascade system.

For example, in many parallel batch type boilers, cascade control can combine the slave processor directly with the master, which is the main computer, so that the slave can perform the operation process and the master can do the work, As a method, the boiler can be selectively operated as much as the heat amount required for the heating load. If the heating load is small, only a part of the boiler is operated. If the heating load is increased and the required heat amount is increased, have.

However, the method of changing the operation number of the boiler or the water heater operating in the existing cascade control system judges the flow rate of each boiler or the water heater to be different from the master device in stages such as large, medium, small , It was decided to increase or decrease the number of boilers or water heaters operating due to the difference in the number of operations between the large flow state and the state of ownership.

Therefore, if the boiler or water heater in operation is continuously changed in the combustion, the number of boilers or water heaters judged as the ownership and the number of the boilers or water heaters judged as the large flow rate do not change by more than a certain number.

For example, if there are five water heaters or boilers in operation, assuming that there are two water heaters or boilers with a large flow rate, one water heater with heavy oil content or one boiler, two water heaters with boilers or two boilers, It is necessary to change the number of operation according to the change of the flow rate. However, in the above state, since there is no difference in the number of the water heater or the boiler in the state of ownership with the water heater or the boiler in the large flow state, the operation number does not change immediately even if the total flow amount changes. Immediately upon change in the flow rate, the operation number of the water heater or boiler does not react and changes slowly. This is equivalent to operating a relatively large number of boilers or water heaters over the entire flow rate. As a result, the operation efficiency of the boiler or the water heater is lowered.

Patent Document 1: Korean Patent Laid-Open No. 10-2012-0110405

Patent Document 2. Japanese Patent Laid-Open No. 10-2012-0076092

SUMMARY OF THE INVENTION The present invention has been devised to solve the problems of the prior art as described above, and it is an object of the present invention to provide a system and method for transmitting water supply flow rate information to a master system and calculating a water supply flow rate of each slave device in a master system, And a control system of the hot water generation module.

Another object of the present invention is to provide a control method of a hot water generating module for determining the number of boilers or water heaters according to the total flow rate and selecting the number of boilers or water heaters as flow rate information according to the total flow rate.

The above objects are achieved according to the present invention by a slave device; A slave system for determining the flow rate of the slave devices, inputting the flow rate to the controller, and transmitting the determination information to the master system; A flow rate determination and calculation unit for determining and calculating the total flow rate of the slave devices, an operation logger determination unit for determining the number of slave devices to be operated according to the calculated flow rate, and a control unit for transmitting a control command to the slave devices A master system; and a hot water generator module control system including a master system.

Further, according to the embodiment of the present invention, the slave system transmits the feed water flow rate information to the master system through the communication unit.

In addition, according to the embodiment of the present invention, the slave system determines each feed water flow rate information at predetermined period intervals by the flow rate determination unit and transmits it to the master system, and the master system calculates the information of each feed water flow rate through the control unit Thereby determining the total feed water flow rate.

In addition, according to the embodiment of the present invention, the master system can perform the cascade control by determining the feed flow rate of each slave device, determining the total flow rate, and then determining the number of slave devices corresponding to the total flow rate.

In another aspect of the present invention, there is provided a slave system including a first step of transmitting flow rate information in a slave system of a slave device; Receiving the flow rate information transmitted from the slave system in the master system of the master device; 3) checking flow rate information transmitted from the slave device received from the step 2; A fourth step of calculating and determining the total feed water flow rate through the flow rate information confirmed in step 3; And 5) controlling the slave devices by determining the number of operations relative to the total feed water flow rate according to the determination result in the step 4).

According to an embodiment of the present invention, the slave system may further include receiving cascade control information from the master system and controlling operation of the slave device according to the cascade control information.

According to an embodiment of the present invention, the slave device or the master device may further include a step of starting the combustion when a flow rate exceeding the operation quantity is detected, respectively.

Further, according to the embodiment of the present invention, in the fourth step, the slave device which has started the combustion sends the feed water flow rate information to the master device, the master device calculates the flow rate of the master device and the flow rate transmitted from each slave device, And confirming the water supply flow rate.

In the present invention, the feed water flow rate information of the hot water generating module is transmitted to the master system, and in the master system, the feed flow rate of each of the slave devices is calculated to determine the total flow rate and burns the total flow rate by operating the boiler or the water heater corresponding to the total flow rate, Thereby preventing deterioration of thermal efficiency due to heat consumption or the like.

According to the present invention, the number of boilers or water heaters is determined according to the total flow rate, and the operation amount of the boiler or the water heater is selectively operated by the flow information according to the total flow rate, thereby reducing the operation cost of the fuel and electricity.

1 is a control system block diagram of a hot water generation module according to an embodiment of the present invention;
2 is a block diagram of a master system according to an embodiment of the present invention.
3 is a block diagram of a slave system according to an embodiment of the present invention;
4 is a block diagram of a cascade control system of a master slave system according to an embodiment of the present invention.
5 is a flow chart of cascade control in a master system according to an embodiment of the present invention;
6 is a flowchart of cascade control in a slave system according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of a hot water generation module control system according to an embodiment of the present invention.

As shown in FIG. 1, the hot water generating module 100 includes a plurality of boilers or water heaters 110, 1,2,3, 4,5... The respective boilers or water heaters 110 correspond to master or slave devices and are configured as master slave systems and controlled by cascade control by mutual communication. To this end, each boiler or water heater 110 may be connected via a communication line 120. The communication line 120 may be a wired or wireless communication network.

The boiler or water heaters 110 are grouped to communicate with one another via a communication line 120 or the like to form a hot water generating module 100. In addition, each boiler or water heater 110 is arranged in groups to form a hot water generating module 100, which is configured as a master slave system and controlled by cascade control.

Accordingly, one or more of each boiler or water heater 110 may be a master device, and the remainder may be a slave device constituting a slave processor. The master system 200 is constituted by a master device and the slave system 300 is constituted by a slave device.

Here, the 'hot water generation module' may mean a state in which a plurality of boilers or water heaters are arranged in the master slave system. The 'master device' may be a boiler or a water heater in which the main computer (master system) is located in the hot water generating module. The 'slave device' may be a boiler or a water heater in which a slave system (slave system) is installed except for the master computer in the hot water generating module.

2 is a master system block diagram of a hot water generation module according to an embodiment of the present invention.

1 and 2, the control system of the hot water generating module may include a communication line 120 connecting the boiler or the water heater 110 constituting the hot water generating module 100. The communication line 120 is meant to include both wired and wireless communication.

And a master system 200 for registering the boiler or the water heater 110 as a slave ID.

The boiler or water heaters 110 are registered as slave devices by the master system 200 and are arranged to be interfaced with the master system 200 with respective unique IDs assigned thereto.

2, the master system 200 includes a communication unit 210 for communicating with the slave system 300, a total flow rate calculator 220 for calculating the total flow rate of the slave devices by communicating with slave processors of the slave devices, An operation algorism determination unit 260 for determining the number of slaves to be operated, a communication unit 210 for communicating with a slave system dependent processor, a combustion instruction for the combustion unit 250, And a control unit 230 for executing the logarithmic determination. The master system 200 may include a flow rate determination device 270 and a flow rate determination unit 280 for determining a flow rate determined from the flow rate determination device 270. The flow rate determination device 270 may include a sensor for checking and detecting the flow rate and sending a detection signal, but is not limited thereto.

3 is a slave system block diagram of a hot water generation module according to an embodiment of the present invention.

The slave system 300 is installed in a slave device such as a boiler or a water heater and communicates with the master system 200 through the communication unit 310. The slave system 300 determines the flow rate of the slave devices and inputs the flow rate to the control unit 320, (200) to the communication. The control unit 320 of the slave system 300 controls the combustion unit 300 of the slave device and determines the flow rate determined by the flow rate determination apparatus 340 through the flow rate determination unit 350. The flow rate determination device 340 may include, but is not limited to, a sensor for checking and detecting the flow rate and sending a detection signal.

In addition, the master system 200 determines the total flow rate by calculating the supply flow rate transmitted through the slave system 300 of each of the slave devices, determines the number of slave devices corresponding to the total flow rate, .

The slave system 300 determines the supply water flow rate information at predetermined intervals by the flow rate determination unit 350 and transmits the information to the master system 200. The master system 200 receives the total supply flow rate information from the total flow meter unit 220, And the flow rate information of the master device is calculated to determine the total supply flow rate of the slave devices.

FIG. 4 is a block diagram of a control system block of a hot water generating module according to an embodiment of the present invention, and is an example of a control system of a hot water generating module for cascade-controlling slave devices through a master system.

4, a slave device (boiler or water heater) communicating with the master system 200 continuously communicates with the master system 200 through the slave system 300 to determine the water supply flow rate of the water heater or the boiler, And calculates and determines the number of slave devices operating at the optimum efficiency. Accordingly, by controlling the total flow rate of the slave devices and determining the number of operations required for the operation, the cascade control that increases or decreases the number of operations of the boiler or the water heater is controlled to perform efficient operation.

As shown in FIG. 4, the control of the hot water generation module by the master slave system includes a first step of transmitting the flow rate information in the slave system 300 of the slave device and a second step of transmitting the flow rate information transmitted from the slave system 300 to the master system 200 to the master system 200 through the flow rate information confirmed through the third and third steps of confirming the transmission flow rate information of the slave device received from the second stage and the second stage in the master system 200. [ And the slave devices are controlled by the master system 200 by determining the number of operations relative to the total feed water flow rate in accordance with the result of the determination in the fourth and fourth steps.

Also, the slave system 300 receives the cascade control information from the master system 200, and can control the operation of the slave device according to the cascade control information.

Further, the slave device or the master device can be controlled so as to start the combustion when the flow rate of the flow rate is greater than the operating rate, respectively.

Also, the slave system 300 of the slave device, which has started the combustion, transmits the feed water flow rate information to the master system 200 of the master device, and the master system 200 of the master device transmits the flow rate of the master device to each slave device And calculating a flow rate to identify the total feedwater flow rate.

The control of the hot water generation module according to the embodiment of the present invention will be described in detail with reference to FIG. 4 to FIG.

5 is a flowchart of cascade control in the master system according to the embodiment of the present invention.

Referring to FIG. 5, the control of the master system 200 stops the operation of the master device when it is determined that the flow rate is not more than the operating quantity (S210). Otherwise, if the flow rate of the operation quantity or more is detected, the operation is permitted (S230), and the flow rate information of the current master device is confirmed (S240).

The flow rate information of each slave device transmitted from each slave system 300 is checked continuously (S250), and the total supply flow rate is calculated and determined based on the flow rate information transmitted from each of the slave devices (S260 ).

If it is not necessary to change the number of operations, the flow returns to the beginning to inquire whether the flow rate exceeding the operation quantity is detected (S210). If it is necessary to change the operation number, the operation number is changed according to the cascade control of the master system (S280).

Thereafter, the change of the operation number is transmitted to the slave system through the communication unit of the master system, and controls to operate the slave devices or stop the operation according to the transmission information.

6 is a flowchart of cascade control in a slave system according to an embodiment of the present invention.

Referring to FIG. 6, the control of the slave system 200 stops the operation of its own slave device when the flow rate is not detected more than the operating quantity (S310), depending on whether the flow rate is larger than the operating quantity (S310). Alternatively, when the flow rate of the operation quantity or more is detected, the operation of the own slave device is permitted (S330).

Continuously, the flow rate information of the slave device is transmitted to the master system 200 through the communication unit of the slave system (S340). The flow rate information of the slave device thus transmitted is converted from the master system 200 to the cascade control signal, and the converted information is received through the slave system 300 (S350).

In response to the cascade control signal, the slave system 300 checks whether or not the corresponding slave device is operating (S360), and performs a process of detecting whether the flow rate exceeds the operating quantity periodically or repeatedly during operation.

Then, whether the operation is performed can be controlled by the cascade control information transmitted to the slave system through the communication unit of the master system.

As shown in FIGS. 4 to 6, a hot-water generating module in which a boiler or a water heater is disposed in a group is configured as a master-slave system, a total flow rate of the slave devices is determined in the master system, The number of actuators is determined and controlled according to the flow rate variation.

All the slave devices connected to the master system 200 in the cascade control continuously transmit the respective feed water flow rate information to the master system 200 at intervals of a predetermined period through the slave system 300, And calculates the total feed water flow rate (Y).

The combustion is started when the flow quantity exceeding the operating quantity is detected in the master system 200 or the slave system 300 which has been checking the flow rate. At this time, the slave device, which has started the combustion, transmits the sensed supply water flow rate information to the master system 200. In the master system 200, the flow rate of the master device of the master system 200 is compared with the flow rate of the master device 200 transmitted from each slave system 300 Calculate the flow rate of the slave devices and check the total feed flow (Y). At this time, when the flow rate reaching the efficient operation of each of the master and slave equipments is (X), the calculation formula of the operation number N can be as follows.

For example,

Y: Total water flow rate

X: Flow rate required for efficient operation

N: When operating number,

Y / X = N.

If there is a remainder of N, N = N + 1 can be established. If N does not have a remainder, N = N can be determined. The N value may vary according to the flow rate determination period and time, and may be determined by other methods. Therefore, the N value is not limited to the embodiments of the present invention.

On the other hand, if the operation state of the present operation boiler or the water heater after the operation in the master system 200 can be efficiently operated, the number of the current operation boiler or the water heater can be maintained, and the number of the current operation boiler and the optimum operation number N ), The number of operating boilers or water heaters can be increased or decreased in accordance with the cascade control of the master system 200.

For example, if the flow rate (X) that can operate the most efficiently, ie, the flow value at which the boiler or water heater can operate at the maximum calorie value is 15L, if the total flow rate is 150L, 10 units are operated and 151L , It is possible to control the operation of 16 units beyond the maximum operating range of 15 units.

The slave system 300 communicating with the master system 200 in the cascade control of the master slave system continuously transmits the feed rate information to the master system 200 and the master system 200 determines the total flow rate Y So as to continuously determine the operation number N close to the optimum efficiency and thereby increase or decrease the number of operation boilers or water heaters so as to burn the necessary number of logs.

The cascade control in the master slave system according to the present invention determines the sum of the current flow rate transmitted from the slave system which is a slave processor of each slave device in the master system so as to determine the operation number of the boiler or the water heater according to the total flow rate, Can be operated. It controls the number of operation selectively compared with the existing control method, and by this, it secures an appropriate heat quantity to increase the thermal efficiency and reduce the operation cost of the fuel and electric power.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of illustration, .

100: hot water generating module 110: boiler or water heater
120: communication line 200: master system
210.310: communication unit 220: total flow rate calculation unit
230.320: Control section 250.330:
260: Operation Algebra Determination Unit 270.340: Flow Rate Determination Apparatus
280.350:

Claims (8)

Slave devices; A slave system for determining the flow rate of the slave device, inputting the flow rate to the controller, and transmitting the determination information to the master system; And a control unit for transmitting a control command to the slave devices. The control unit controls the flow rate of the slave devices based on the flow rate of the slave devices, And a control system for the hot water generation module. The method according to claim 1,
Wherein the slave system transmits the water supply flow rate information to the master system via the communication unit. The method according to claim 1,
The slave system determines the supply water flow rate information at a predetermined cycle through a flow rate determination unit and transmits the information to the master system. The master system calculates a water supply flow rate by calculating information on each water supply flow rate through the control unit, Of the control system. The method according to claim 1,
Wherein the control unit of the master system calculates the supply flow rate of each slave device to determine the total flow rate and then determines the number of slave devices corresponding to the total flow rate to perform the cascade control. A first step of transmitting flow rate information in a slave system of a slave device; Receiving the flow rate information transmitted from the slave system in the master system of the master device; A step 3 of confirming transmission flow rate information of a slave device received from the step 2; A fourth step of calculating and determining the total feed water flow rate through the flow rate information confirmed in step 3; And 5) controlling the slave devices by determining the number of operations relative to the total feed water flow rate in accordance with the determination result in the step 4). 6. The method of claim 5,
Wherein the slave system receives the cascade control information from the master system and controls the operation of the slave device according to the cascade control information. 6. The method of claim 5,
Wherein the slave device or the master device starts combustion when a flow rate exceeding the operation quantity is detected, respectively. 6. The method of claim 5,
In the step 4, the slave device that has started the combustion sends the feed water flow rate information to the master device. In the master device, the flow rate of the master device and the flow rate transmitted from each slave device are calculated to check the total feed water flow rate Control method of the hot water generation module.
KR1020150092833A 2015-06-30 2015-06-30 Method and system of warm water creation module the control KR20170002907A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101961566B1 (en) * 2017-10-31 2019-03-25 린나이코리아 주식회사 Optimal operation number of a hot water cascade system
KR20210067791A (en) * 2019-11-29 2021-06-08 린나이코리아 주식회사 Method for operating flux of hot water passing through proportion valve of hot water side

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120076092A (en) 2010-12-29 2012-07-09 주식회사 경동나비엔 Cascade system and control method of the cascade system and a heating boiler comprising the cascade system
KR20120110405A (en) 2011-03-29 2012-10-10 주식회사 경동나비엔 Controller for cascade system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120076092A (en) 2010-12-29 2012-07-09 주식회사 경동나비엔 Cascade system and control method of the cascade system and a heating boiler comprising the cascade system
KR20120110405A (en) 2011-03-29 2012-10-10 주식회사 경동나비엔 Controller for cascade system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101961566B1 (en) * 2017-10-31 2019-03-25 린나이코리아 주식회사 Optimal operation number of a hot water cascade system
KR20210067791A (en) * 2019-11-29 2021-06-08 린나이코리아 주식회사 Method for operating flux of hot water passing through proportion valve of hot water side

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