CN103629414B - A kind of heating network system intelligent flow adjusting controller and its regulation method - Google Patents
A kind of heating network system intelligent flow adjusting controller and its regulation method Download PDFInfo
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- CN103629414B CN103629414B CN201310705430.9A CN201310705430A CN103629414B CN 103629414 B CN103629414 B CN 103629414B CN 201310705430 A CN201310705430 A CN 201310705430A CN 103629414 B CN103629414 B CN 103629414B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0091—For recording or indicating the functioning of a valve in combination with test equipment by measuring fluid parameters
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Flow Control (AREA)
Abstract
The present invention relates to a kind of heating network system intelligent flow adjusting controllers and regulation method.Its structure composition includes controller CPU, RS232 interface, RS485 interface, DS18B20 sensor interface, 16 tunnel A D interfaces, 4-20mA output interface, keyboard, LCD is shown, GPRS network interface, power switch, voltage stabilizing chip, differential pressure pickup, temperature sensor and electric control valve, controller is powered using 9-16V DC power supply, pipeline project amount signal is acquired by 16 tunnel A D interfaces, in conjunction with keyboard, control parameter is set, control 4-20mA output interface output control signal, drive pipeline electric control valve, method is regulated and controled using PID, realize Automatic Control flow, it is connected by GPRS network interface with internet, realize remote monitoring and control.The present invention is adjusted relative to conventional pipelines flow has intelligence degree height, it can be achieved that accurately controlling pipeline flow.
Description
Technical field
The present invention relates to a kind of intelligent controller adjusted for heating system pipeline flow and its control methods, are used for
Heating system pipe network full-automatic water dynamic balance is adjusted.
Background technique
In heating system, hydraulic equilibrium adjusting be it is essential, hydraulic equilibrium adjust essence be by adjust pipeline
On hydraulic balance adjusting valve realize pipeline flow adjusting.Hydraulic balance adjusting valve is divided into manual modulation valve and motorized adjustment
Valve, manual modulation valve need worker to adjust using spanner, and electric control valve is controlled using 4-20mA current signal.Electric adjustable
Valve is saved relative to manual modulation valve, advantage is exactly that electricity can be used to be adjusted, and worker is adjusting pipeline using electric control valve
When flow is adjusted, since the aperture and pipeline flow of electric control valve are not linear relationships, this just needs worker constantly to change
Valve opening value, until pipeline flow value is equal or close to setting flow value, this mode is time-consuming and laborious, and needs worker
It debugs at the scene.Hydraulic balance adjusting valve is typically mounted at the consumer heat inlet of Lou Dong, and space is more narrow, and worker is being adjusted
When, it is very inconvenient.Hydraulically balanced adjusting is the water supply loop flow adjusting for a heating system, a heating system
It is dispersed with multiple regulating valves in circuit, when adjusting one of valve, the changes in flow rate in other circuits can be caused, so scene is adjusted
When examination, multiple workers are needed, is debugged, thus substantially increases human cost.So traditional hydraulic equilibrium tune
Section, not only consumes time-consuming and laborious, and control accuracy is low, therefore needs a kind of controller, can automatically control electricity according to setting flow value
Dynamic to adjust valve events, to adjust pipeline flow, while controller has remote control function, the institute in this way on whole system circuit
Some controllers are connected on host computer by Internet, are debugged by professional is unified, can be greatly promoted working efficiency
And control accuracy.
Summary of the invention
In order to overcome the defect of above-mentioned traditional background technique, the object of the present invention is to provide a kind of heating network system intelligence
Flow adjusting controller and its regulation method.
To achieve the goals above, the technical solution of the invention patent:
Pipeline flow intelligence adjusting controller includes the controller CPU for realizing operation control；For detecting digital temperature
Spend the interface of sensor DS18B20；For detecting 16 tunnel A D interfaces of pipeline spot sensor；For controlling pipeline valve aperture
4-20mA output interface；For the keyboard of control parameter to be arranged；LCD for real-time display operation information is shown；For even
Connect the GPRS network interface of Internet network；RS233 and RS485 interface for directly being communicated with host computer or slave computer,
And support standard Modbus communication protocol；Power switch for Switching Power Supply；Pressure stabilizing core for multiregion supply voltage
Piece.
Pipeline flow intelligence adjusting controller realizes that pipeline flow is adjusted there are three types of mode, respectively manual mode, automatic
The control principle of mode, distance control mode, three kinds of control models is as follows:
Pipeline flow intelligence adjusting controller manual mode principle: by specific keyboard, entering manual mode,
By keyboard to set up valve types and flow target value, controller CPU passes through the corresponding valve opening-stream of valve types of selection
Curve is measured, valve opening target value, the corresponding valve opening of valve types-control electricity that controller CPU passes through selection are calculated
Signal curve is flowed, the corresponding control current signal target value of valve opening target value is calculated, controller CPU drives 4-20mA defeated
Outgoing interface output control signal, control valve are acted to target aperture, realize pipeline flow control.
Pipeline flow intelligence adjusting controller automatic mode principle: the sensor of pipeline field is detected by 16 tunnel A D interfaces
Signal, the specially pressure of supply water of pipeline and pressure of return water signal enter automatic mode by keyboard, and setting selects used
Valve types, pid control algorithm parameter, flow target value.Controller CPU passes through pressure of supply water, the difference of pressure of return water and valve
Doorway diameter calculates pipeline present flow rate value according to flow rate calculation formula, and controller CPU is calculated according to pid control algorithm
Valve opening target value, controller CPU pass through the corresponding valve opening of valve types-control current signal curve of selection, meter
The corresponding control current signal target value of valve opening target value is calculated, controller CPU drives the output control of 4-20mA output interface
Signal processed, control valve are acted to valve opening target value, and controller CPU compares present flow rate value and setting flow value, if
Error range within the set range, then stops adjusting, it is on the contrary then continue adjust pipeline valve, until current pipeline flow value with set
The error for determining pipeline flow value meets the error range of setting.
Pipeline flow intelligence adjusting controller distance control mode principle: long-range control mould is entered by button operation
Formula, pipeline flow intelligent controller are connected to Internet network by GPRS network interface, realize long-range host computer and control
The communication of device.The signals such as collected pipeline pressure, temperature, valve aperture, setup parameter value are transmitted on long-range by controller
Position machine is shown, sends setting flow value by long-range host computer, controller is according to the setting flow value, to automatically control mould
The adjusting of formula realization pipeline flow.
Pipeline flow intelligence adjusting controller regulates and controls method:
1) it is input in controller according to the specific aperture of electric control valve-flow kv characterisitic parameter, according to the reality of acquisition
Border pressure calculates corresponding flow under the aperture-pressure difference, and calculation formula is as follows:
Corresponding flow Qv under different opening difference pressure difference
In formula, flow under Kv-100kpa, m3/ h；
Actual pressure differential before and after Δ P- valve, kpa；
ΔP0Pressure difference=100kpa before and after valve；
ρ0The density that mark condition is lauched, kg/m3；
The density that ρ-actual condition is lauched, kg/m3。
2) actual flow being calculated and setting flow value comparison are controlled to adjust into electric adjustable according to pid control algorithm
Valve opening is saved, realizes the adjusting to flow, control process is referring to shown in attached drawing 2.
Detailed description of the invention
Fig. 1 is adjusting controller composition figure；
Fig. 2 is that controller regulates and controls method flow diagram.
Specific embodiment
Intelligent flow adjusting controller, including controller CPU (1), RS232 interface (2), RS485 interface (3), DS18B20
Sensor interface (4), 16 tunnel A D interfaces (5), 4-20mA output interface (6), keyboard (7), LCD show (8), GPRS network interface
(9), power switch (10), voltage stabilizing chip (11), by the DC power supply of 6-16V range and power switch (10), by field pipes
Pressure of supply water sensor, pressure of return water sensor on road, pipeline valve feedback signal are linked into 16 tunnel A D interfaces, by leading
4-20mA output interface is connected by line with pipeline valve control interface, by conducting wire by the DS18B20 temperature sensing of pipeline field
Device is linked into controller DS18B20 sensor interface.
Power switch (10) are pressed, display picture is entered, LCD shows (8) welcome screen, while by lower keyboard (7)
KEY_UP key and KEY_RIGHT key, enter control model selection picture, pressed by KEY_UP key or KEY_DOWN
Key, circulation selection control model after selecting control model, press KEY-RIGHT key and enter corresponding selection mode setting
Picture, then by KEY_UP or KEY_DOWN key selection setting parameter type, setting parameter type selects after determining, passes through
KEY_RIGHT key and KEY_LEFT key are configured the setting parameter of selection, after the completion of parameter setting, press simultaneously
Key KEY_UP key and KEY_LEFT key, jump to upper level picture, and parameter setting can automatically save.
Claims (9)
1. a kind of heating network system intelligent flow adjusting controller, it is characterised in that controller is by controller CPU (1), RS232
Interface (2), RS485 interface (3), DS18B20 sensor interface (4), 16 tunnel A D interfaces (5), 4-20mA output interface (6), key
Disk (7), LCD show (8), GPRS network interface (9), power switch (10), voltage stabilizing chip (11), differential pressure pickup (12), temperature
Spend sensor (13) and electric control valve (14) composition；Controller CPU (1) side respectively with the RS232 interface (2),
The RS485 interface (3), the DS18B20 sensor interface (4), 16 tunnel A D interface (5) and 4-20mA output connect
Mouth (6) connection, 16 tunnel A D interface (5) are connect with the differential pressure pickup (12) and the temperature sensor (13) respectively,
The 4-20mA output interface (6) connect with the electric control valve (14)；Controller CPU (1) other side respectively with institute
State keyboard (7), the LCD shows that (8), the GPRS network interface (9) and the power switch (10) connection, the power supply are opened
Pass is connect with the voltage stabilizing chip；Pipeline electric control valve front and back pressure parameter is acquired by 16 tunnel A D interfaces (5), use is specific
Pressure difference-flow control algorithm, in conjunction with keyboard (7) operate, be arranged control algolithm, pass through 4-20mA output interface (6) control pipe
Road adjusts valve events, realizes flow automatic regulation, the specific pressure difference-flow control algorithm are as follows:
In formula, flow under Kv-100kpa, m3/h；
Actual pressure differential before and after Δ P- valve, kpa；
ΔP0Pressure difference=100kpa before and after valve；
ρ0The density that mark condition is lauched, kg/m3；
The density that ρ-actual condition is lauched, kg/m3。
2. intelligent flow adjusting controller according to claim 1, it is characterised in that due to using voltage stabilizing chip (11), make
Controller can flexibly be powered using 9-16V range interior power.
3. intelligent flow adjusting controller according to claim 1, it is characterised in that have RS232 interface (2), RS485 to connect
Mouthful (3) are connected when being communicated with other computers or controller with RS232 interface or RS485 interface, support standard
Modbus communication protocol.
4. intelligent flow adjusting controller according to claim 1, it is characterised in that have DS18B20 sensor interface (4),
2 DS18B20 sensor interfaces can be connected simultaneously, and controller being capable of automatic identification and reading each DS18B20 biography
Sensor ID and measurement numerical value.
5. intelligent flow adjusting controller according to claim 1, it is characterised in that have keyboard (7), keyboard is by 5 keys
Composition is RESET key, KEY_UP key, KEY_DOWN key, KEY_LEFT key, KEY_RIGHT key, design respectively
Independent key and combination button set-up mode.
6. intelligent flow adjusting controller according to claim 1, it is characterised in that have 16 tunnel A D interfaces (5), Ke Yitong
When 16 road 4-20mA standard current signal of circle collection, in conjunction with keyboard, the conversion of current signal to project amount signal is set, can be with
It is shown in LCD and shows acquisition signal corresponding project amount in 16 tunnels in (8) in real time.
7. intelligent flow adjusting controller according to claim 1, it is characterised in that by GPRS network interface (9), in conjunction with
Keyboard (7) setting connection Internet network parameter, realizes long-range monitoring and setting controller.
8. intelligent flow adjusting controller according to claim 1, it is characterised in that controller has 3 kinds of control models, point
Not Wei MANUAL CONTROL mode, automatic control mode, distance control mode, different control models, by key combination selection and
Setting.
9. a kind of heating network system intelligent flow regulates and controls method, which is characterized in that the regulation method includes:
It is input in controller according to motorized adjustment valve opening-flow kv characterisitic parameter, according to the actual pressure of acquisition, calculates
Corresponding flow under the aperture-pressure difference, calculation formula are as follows: corresponding flow Qv under different opening difference pressure difference
In formula, flow under Kv-100kpa, m3/h；
Actual pressure differential before and after Δ P- valve, kpa；
ΔP0Pressure difference=100kpa before and after valve；
ρ0The density that mark condition is lauched, kg/m3；
The density that ρ-actual condition is lauched, kg/m3；
The actual flow being calculated and setting flow value comparison are controlled to adjust electric control valve and opened according to pid control algorithm
Degree realizes the adjusting to flow.
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| CN201310705430.9A CN103629414B (en) | 2013-12-20 | 2013-12-20 | A kind of heating network system intelligent flow adjusting controller and its regulation method |
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| CN201310705430.9A CN103629414B (en) | 2013-12-20 | 2013-12-20 | A kind of heating network system intelligent flow adjusting controller and its regulation method |
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| Publication Number | Publication Date |
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| CN103629414A CN103629414A (en) | 2014-03-12 |
| CN103629414B true CN103629414B (en) | 2019-01-08 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106066656A (en) * | 2016-08-16 | 2016-11-02 | 河南柴油机重工有限责任公司 | The temperature control set for adjusting of a kind of heat exchange station automatic control system and method |
| CN106123110A (en) * | 2016-08-16 | 2016-11-16 | 河南柴油机重工有限责任公司 | A kind of heat exchange station automatic control system and method |
| RU2679472C1 (en) * | 2017-11-15 | 2019-02-11 | Общество с ограниченной ответственностью "Точный Тепло Учет" | Method of measuring difference liquid and gaseous media flow rate and device for implementation thereof (options) |
| CN110260389B (en) * | 2019-05-17 | 2021-08-13 | 北京太伟宜居装饰工程有限公司 | Overhead floor heating system |
| CN110308748A (en) * | 2019-06-17 | 2019-10-08 | 常州大学 | A kind of Intelligent controller for valve and control method based on STM32 |
| CN111720875A (en) * | 2019-10-28 | 2020-09-29 | 北京德利恒科技发展有限公司 | Experimental device for hydraulic balance adjustment and data application based on centralized heat supply pipe network |
| CN113805477B (en) * | 2020-06-12 | 2024-05-28 | 中国石油天然气股份有限公司 | PID setting method and device for oil and gas pipeline pressure regulating equipment |
| CN112728192B (en) * | 2021-01-04 | 2023-03-14 | 上海一诺仪表有限公司 | Valve control method, control device, control equipment and computer equipment |
| CN113572264B (en) * | 2021-07-26 | 2024-02-27 | 济南迈克阀门科技有限公司 | Intelligent controller of pipe network system with power supply and remote regulation and control functions |
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| CN103629414A (en) | 2014-03-12 |
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Address after: 100021 6th Floor, Building 18, Huawei North Lane, Chaoyang District, Beijing Patentee after: Jinfang Energy Group Co.,Ltd. Address before: 100021 6th Floor, Building 18, Huawei North Lane, Chaoyang District, Beijing Patentee before: BEIJING KINGFORE HVAC ENERGY SAVING TECHNOLOGY Co.,Ltd. |
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