CN205783315U - A kind of central heating temperature automatic adjustment system - Google Patents

A kind of central heating temperature automatic adjustment system Download PDF

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Publication number
CN205783315U
CN205783315U CN201620474807.3U CN201620474807U CN205783315U CN 205783315 U CN205783315 U CN 205783315U CN 201620474807 U CN201620474807 U CN 201620474807U CN 205783315 U CN205783315 U CN 205783315U
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CN
China
Prior art keywords
temperature
sensor
programmable controller
controller plc
water flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620474807.3U
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Chinese (zh)
Inventor
魏宇
德国利
王秀珍
蔡文慧
周国胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRANDE-TEK FLOW CONTROL Co Ltd
Hebei Benefit Energy Saving Technology Co Ltd
Original Assignee
GRANDE-TEK FLOW CONTROL Co Ltd
Hebei Benefit Energy Saving Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GRANDE-TEK FLOW CONTROL Co Ltd, Hebei Benefit Energy Saving Technology Co Ltd filed Critical GRANDE-TEK FLOW CONTROL Co Ltd
Priority to CN201620474807.3U priority Critical patent/CN205783315U/en
Application granted granted Critical
Publication of CN205783315U publication Critical patent/CN205783315U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of central heating temperature automatic adjustment system, including programmable controller PLC;Also include atmosphere temperature transducer, recirculated water high temperature side temperature sensor, recirculated water low temperature side temperature sensor, circulating water flow quantity sensor, atmosphere temperature transducer, inflow temperature sensor, return water temperature sensor and circulating water flow quantity sensor input I/O port with the analog signals of programmable controller PLC respectively and are connected, also include the indoor temperature transmitter for measuring pipe network terminal temperature difference room temperature, indoor temperature transmitter inputs I/O port by wireless communication module with the analog signals of programmable controller PLC and is connected, the analog signals output I/O port of programmable controller PLC is connected with the control signal input of circulating water flow adjustable valve or the control signal input of circulating water flow variable frequency pump.This utility model has the features such as heating quality height, energy-saving and environmental protection.

Description

A kind of central heating temperature automatic adjustment system
Technical field
This utility model relates to a kind of central heating temperature automatic adjustment system.
Background technology
nullDue to the mode of heating pipe network commonly used heating installation series connection in old cell set,Therefore,The regulation of room temperature is played a leading role by the heat supply of recirculated water,Owing to heating pipe network volume is bigger,Pipeline is longer,Cause power system capacity delayed relatively big (i.e. room temperature is longer for the recirculated water regulated quantity response time),Therefore cannot be designed to room temperature as controlled variable,Circulating water flow is that the single closed-loop regulating system handling variable is to realize precisely regulation,At present,It is typically based on the required thermic load up to standard of the resident family's temperature corresponding to each heating branch road,Substantially determine that each branch road recirculated water necessary flow is certain certain value,Then the mode using regulation pipe network balance makes the recirculated water of each heating branch road reach this flow value,This regulative mode can only make user reach substantially to heat requirement,When atmospheric temperature and circulating water temperature change,The circulating water flow of each heating branch road is also to maintain constant,This adjustment will be broken,Make indoor temperature on the low side or higher,Thus reduce heating quality,Increase unnecessary energy resource consumption simultaneously,Atmospheric environment is affected,Owing to north of china in winter haze is mainly derived from the coal burning that heating produces,Therefore the impact that environment is caused by this problem more can not be ignored.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of central heating temperature automatic adjustment system, it have heating temperature be automatically adjusted, heating quality height, the feature such as energy-saving and environmental protection.
For solving above-mentioned technical problem, technical solution adopted in the utility model is:
A kind of central heating temperature automatic adjustment system, including programmable controller PLC;nullAlso include the atmosphere temperature transducer for measuring atmospheric temperature、For measuring the recirculated water high temperature side temperature sensor of recirculated water inflow temperature、For measuring the recirculated water low temperature side temperature sensor of recirculated water return water temperature、For measuring the circulating water flow quantity sensor of heating pipe network recirculated water flow of inlet water,Atmosphere temperature transducer、Inflow temperature sensor、Return water temperature sensor and circulating water flow quantity sensor input I/O port with the analog signals of programmable controller PLC respectively and are connected,Also include the indoor temperature transmitter for measuring pipe network terminal temperature difference room temperature,Indoor temperature transmitter inputs I/O port by wireless communication module with the analog signals of programmable controller PLC and is connected,The analog signals output I/O port of programmable controller PLC is connected with the control signal input of circulating water flow adjustable valve or the control signal input of circulating water flow variable frequency pump.
This utility model further improvement is that:
Programmable controller PLC links with host computer, and host computer is provided with the configuration monitoring software for being managed programmable controller PLC.
Circulating water flow flow characteristics of regulating valve is linear type.
Atmosphere temperature transducer, inflow temperature sensor, indoor temperature transmitter and return water temperature sensor are PT100 platinum resistance integrative temperature transmitter.
Circulating water flow quantity sensor is vortex flow sensors.
Indoor temperature transmitter is multiple.
Use and have the beneficial effects that produced by technique scheme:
This utility model is by carrying out earnest analytical study to the various interference parameters affecting room temperature, systematically consider that it disturbs rule, according to energy balance principle, redefine the equilibrium relation of central heating temperature automatic adjustment system, overcome and cannot pass through traditional control method (closed-loop regulating system with room temperature as controlled variable) and carry out, because power system capacity is delayed relatively big, the drawback that room temperature automatically controls, achieve central heating temperature automatic adjustment function, achieve load regulation, manipulation variable is improved to recirculated water heat by circulating water flow, overcome recirculated water because of temperature, the multiple interference that pressure oscillation causes, improve the regulation quality of robot control system(RCS), avoid unnecessary energy resource consumption, improve the quality of life of heating housing estate resident, it is high that this utility model has heating quality, energy-conservation, the features such as environmental protection.
Accompanying drawing explanation
Fig. 1 is electrical block diagram of the present utility model;
Fig. 2 is control principle block diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is further elaborated.
From the embodiment shown in Fig. 1-2, the present embodiment includes programmable controller PLC;nullAlso include the atmosphere temperature transducer for measuring atmospheric temperature、For measuring the recirculated water high temperature side temperature sensor of recirculated water inflow temperature、For measuring the recirculated water low temperature side temperature sensor of recirculated water return water temperature、For measuring the circulating water flow quantity sensor of heating pipe network recirculated water flow of inlet water,Atmosphere temperature transducer、Inflow temperature sensor、Return water temperature sensor and circulating water flow quantity sensor input I/O port with the analog signals of programmable controller PLC respectively and are connected,Also include the indoor temperature transmitter for measuring pipe network terminal temperature difference room temperature,Indoor temperature transmitter inputs I/O port by wireless communication module with the analog signals of programmable controller PLC and is connected,The analog signals output I/O port of programmable controller PLC and the control signal input of circulating water flow adjustable valve.
Programmable controller PLC links with host computer, and host computer is provided with the configuration monitoring software for being managed programmable controller PLC.
Circulating water flow flow characteristics of regulating valve is linear type.
Atmosphere temperature transducer, inflow temperature sensor, indoor temperature transmitter and return water temperature sensor are PT100 platinum resistance integrative temperature transmitter.
Circulating water flow quantity sensor is vortex flow sensors.
Indoor temperature transmitter is two.
Operation principle:
nullProgrammable controller PLC is by the recirculated water inflow temperature value gathered in scanning input image register region and recirculated water return water temperature value and circulating water flow value,The heat that recirculated water is exported is calculated to heating user by formula Q=CM (t2-t1),The meansigma methods of indoor temperature is calculated by the multiple indoor temperature signals gathered,Relatively accurately to react indoor temperature,Preferable house temperature (setting value at room temperature) is preset in programmable controller PLC,Under equal conditions (i.e. careat is constant,Heat insulation wall is constant、Outside atmosphere is temperature-resistant),Its indoor and outdoor is identical due to the heat conductivity that the temperature difference causes,Therefore,By (meansigma methods of setting value at room temperature-indoor temperature) × constant coefficient,Can draw and reach the setting value at room temperature institute positively related semaphore of calorific requirement (wherein Changshu coefficient can draw in test) with indoor,Using this semaphore as the set-point (instead of the system purely retarded problem caused as controlled variable in Traditional control theory by room temperature) of the pid control module of programmable controller PLC,Recirculated water to the heating caloric value that exported of user as the process variable of the pid control module of programmable controller PLC,The deviation of process variable with set-point is passed through PID(ratio、Integration、Differential) computing generation control signal,Owing to outside atmosphere temperature is change,Temperature is the lowest,It is the biggest that indoor reach setting value at room temperature institute calorific requirement,Therefore by atmospheric temperature × constant coefficient (obtaining in an experiment),In control signal, circulating water flow regulation valve events is controlled as compensating Signal averaging,So that recirculated water exports institute's calorific requirement,So that heating installation reaches dynamic equilibrium with indoor to outdoor distributed heat to indoor institute heating load,So that indoor temperature reaches ideal set value.
Because the heating pipe network laying condition of each community is different, so above two constant coefficient is the most different, need to be adjusted in actual motion, when carrying out parameter adjustment, first using as compensate signal atmospheric temperature × constant coefficient setting value be zero, i.e. in the case of not compensating signal, adjust (when atmospheric temperature is a certain fixed value) and reach the constant coefficient in the setting value at room temperature institute positively related semaphore of calorific requirement with indoor, it is allowed to reach caloric value needed for setting value at room temperature for indoor, adjust the constant coefficient compensated in signal the most again, the interference making regulation signal cause atmospheric temperature change compensates, to reach accurate, control the purpose of indoor temperature in time.

Claims (6)

1. a central heating temperature automatic adjustment system, it is characterised in that: include programmable controller PLC;nullAlso include the atmosphere temperature transducer for measuring atmospheric temperature、For measuring the recirculated water high temperature side temperature sensor of recirculated water inflow temperature、For measuring the recirculated water low temperature side temperature sensor of recirculated water return water temperature、For measuring the circulating water flow quantity sensor of heating pipe network recirculated water flow of inlet water,Described atmosphere temperature transducer、Inflow temperature sensor、Return water temperature sensor and circulating water flow quantity sensor input I/O port with the analog signals of programmable controller PLC respectively and are connected,Also include the indoor temperature transmitter for measuring pipe network terminal temperature difference room temperature,Described indoor temperature transmitter inputs I/O port by wireless communication module with the analog signals of programmable controller PLC and is connected,The analog signals output I/O port of described programmable controller PLC is connected with the control signal input of circulating water flow adjustable valve or the control signal input of circulating water flow variable frequency pump.
A kind of central heating temperature automatic adjustment system the most according to claim 1, it is characterized in that: described programmable controller PLC links with host computer, described host computer is provided with the configuration monitoring software for being managed programmable controller PLC.
A kind of central heating temperature automatic adjustment system the most according to claim 1, it is characterised in that: described circulating water flow flow characteristics of regulating valve is linear type.
A kind of central heating temperature automatic adjustment system the most according to claim 1, it is characterised in that: described atmosphere temperature transducer, inflow temperature sensor, indoor temperature transmitter and return water temperature sensor are PT100 platinum resistance integrative temperature transmitter.
A kind of central heating temperature automatic adjustment system the most according to claim 1, it is characterised in that: circulating water flow quantity sensor is vortex flow sensors.
A kind of central heating temperature automatic adjustment system the most according to claim 1, it is characterised in that: described indoor temperature transmitter is multiple.
CN201620474807.3U 2016-05-24 2016-05-24 A kind of central heating temperature automatic adjustment system Expired - Fee Related CN205783315U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620474807.3U CN205783315U (en) 2016-05-24 2016-05-24 A kind of central heating temperature automatic adjustment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620474807.3U CN205783315U (en) 2016-05-24 2016-05-24 A kind of central heating temperature automatic adjustment system

Publications (1)

Publication Number Publication Date
CN205783315U true CN205783315U (en) 2016-12-07

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Family Applications (1)

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CN201620474807.3U Expired - Fee Related CN205783315U (en) 2016-05-24 2016-05-24 A kind of central heating temperature automatic adjustment system

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106927519A (en) * 2017-03-21 2017-07-07 北京小米移动软件有限公司 Automatic process for preparing water and device and intelligent water purifier
CN107192003A (en) * 2017-05-24 2017-09-22 青岛海尔空调器有限总公司 method and device for heating regulation
CN112963898A (en) * 2021-03-24 2021-06-15 瑞纳智能设备股份有限公司 Room temperature measuring method and room temperature measuring system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106927519A (en) * 2017-03-21 2017-07-07 北京小米移动软件有限公司 Automatic process for preparing water and device and intelligent water purifier
CN106927519B (en) * 2017-03-21 2021-01-22 北京小米移动软件有限公司 Automatic water production method and device and intelligent water purifier
CN107192003A (en) * 2017-05-24 2017-09-22 青岛海尔空调器有限总公司 method and device for heating regulation
CN112963898A (en) * 2021-03-24 2021-06-15 瑞纳智能设备股份有限公司 Room temperature measuring method and room temperature measuring system

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161207

Termination date: 20180524