CN102519083B - Central heating control system and method - Google Patents
Central heating control system and method Download PDFInfo
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- CN102519083B CN102519083B CN201110425538.3A CN201110425538A CN102519083B CN 102519083 B CN102519083 B CN 102519083B CN 201110425538 A CN201110425538 A CN 201110425538A CN 102519083 B CN102519083 B CN 102519083B
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Abstract
The invention relates to a heating control system, in particular to a central heating control system, which can be adjusted by users and administered by leaders. Heat supply is controllable. By the aid of the central heating control system, adjustment and control of a heat supply end and a user end can be realized simultaneously, energy conservation can be realized to the greatest extent, and heating efficiency is improved to the greatest extent. Compared with the prior art, the central heating control system has the advantages that relation between individual requirements of users and management need on central heating can be balanced, heating comfort of the users is met, and purposes of metering and energy conservation are achieved.
Description
Technical field
The present invention relates to the hot measurements and temperature control system of a kind of water heating type central heating, central heating control system and the method for specifically a kind ofly can realize that user is adjustable, heat supply is controlled, leader can pipe.
Background technology
Traditional heat metering is with energy-conservation.First, heat metering does not often almost have a direct correlation with energy-conservation.So-called metering is energy-conservation, is only by measuring this means, and reminding user will be by the charge of heat consumption numeral, and wish is spent less, just needs few by heat.By this pattern impel consumer conscious, be often again the aperture with the most original manual tune valve mode control valve, sheerly a kind of " behavior " energy saver mode.Secondly,, at heat supply end, user oneself can not regulate or do periodically to set and regulate indoor temperature at random, can not realize independence and regulate and control energy-conservation object; On the other hand, can not, by telecommunication and control technology, user's house lead in flow be regulated and controled for heat unit, to carry out mandatory energy-conservation object.In addition, can not go further regulation and control, revise the operational factor of thermal substation according to comprehensive conditions such as the monitoring to terminal temperature difference physochlaina infudibularis numerical value, regulation and control and analyses for heat unit, not realize energy-conservation under total system.In addition, China's central heating temperature is 18 ± 2 degrees Celsius, but because current monitoring means accuracy, reliability are low, in the time that user's temperature is not up to standard, power & light company is difficult to monitor in real time related data, can not adjust heating network in time, also aggravate user and supplied the imbalance between supply and demand between heat unit.
Traditional energy-saving temperature-control mode, roughly has constant temperature control valve mode, common electric temperature control ball valve mode, paraffin electric heating temperature flow valve mode.Facts have proved, there are problems in these valves: first, the valve anthority of these valves is less, and the control characteristic distortion factor of valve is larger, when valve opening hour, flow has approached maximum, does not reach the object of " adjusting ".Secondly, do not reach by the difference demand of heat period and remove automatically to regulate this energy-saving effect of heat, intelligent low.Meanwhile, the weakness that spool water hole is thin, have high-drag, is unfavorable for improving heating quality.As design improperly, often bring the situation that available pressure is inadequate.In addition, in practical application, it is very high again that district system reaches 30% the user probability in complete shut-down state, considerably beyond the standard of system water conservancy equalization point 15%.Therefore, adopting the control valve of standard-sized sheet, complete shut-down is definitely risky for system, and the hot meterage bringing is inequitable, is also easy to cause supply and demand dispute and social contradications.
Summary of the invention
The present invention is directed to management and the unscientific problem of control mode that prior art exists, propose a kind of more scientific more effective central heating control system and method, make user independently regulate and control indoor temperature according to individual demand; Can carry out the thin user of awareness of saving energy mandatory energy-conservation for heat unit simultaneously; In addition, can, according to the collection to terminal temperature difference dsc data and analysis, further carry out the correction of operational factor to the relevant device of thermal substation for heat unit, thereby effectively improve heat supply efficiency, reduction energy consumption and heating cost.
The present invention can reach by following measures:
A kind of central heating control system, this system comprises user side, control centre and heat supply end, wherein user side is the terminal temperature difference in heating system, heat supply end comprises thermal source and heat exchange station, it is characterized in that control centre and user side set up two-way communication, control centre and heat supply end are set up two-way communication.
Described user side comprises indoor thermostat, valve positioner, flow control valve, calorimeter, data concentrator, wherein indoor thermostat is connected through wireless communication module with valve positioner, the flow control valve being arranged on hot duct is connected with valve positioner through data wire, and valve positioner is connected with data concentrator through data wire respectively with the calorimeter being arranged on hot duct.
Described control centre comprises hardware server, PC and for realizing the master system to whole system control and management, described control centre passes through GPRS or 3G wireless network by hardware server, data concentrator through data converter and user side is set up two-way communication, this communication channel is designated as channel 1, control centre is by GPRS or 3G network, set up two-way communication with the data concentrator of heat supply middle-end and head end respectively through data converter, communication channel is designated as respectively channel 2, channel 3
Described heat supply end comprises circulating net and secondary cycle net, wherein in a circulating net, is provided with electric control valve, climate compensator, is provided with frequency converter, circulating pump, motor, valve in secondary cycle net.Climate compensator is connected with electric control valve, frequency converter is connected with circulating pump, the output of motor is connected with valve, and valve installation is on the outside hot duct of heating end, and control centre is connected to realize the control of control centre to heating end with frequency converter and the motor of heating end.
In the present invention, between indoor thermostat and valve positioner, communicate by letter through wireless radiofrequency network (433MHz), in the present invention indoor thermostat by " function ", " setting ", " thermometric ", " programming ' a four functional form button; adjusting knob; power switch button; LCD display and control circuit board composition; its effect is for realizing the random adjusting of user oneself to room temperature or the setting of periodicity room temperature able to programme, and with the information communication of control centre; Control circuit board is provided with RF wireless communication module; Functional form button, adjusting knob, power switch button, LCD display are connected with control circuit board respectively, and indoor thermostat is regulation and control and the display unit of user side in temperature control system.
In the present invention, valve positioner is made up of protective casing and control circuit board, is that the control assembly of user side receives the decode for realizing the instruction of being assigned by indoor thermostat and control centre; Wherein control circuit board is provided with RF wireless communication module, decoding circuit, drive circuit and function of the MCU unit, and the connection of each functional unit completes by the printed wiring of PBC plate.
In the present invention, flow control valve, for adjust flux size, is the execution unit in temperature control system.It is made up of parts such as stepper motor, star-like spool, valve body and annexes, wherein star-like spool is made up of the upper and lower two round ceramic sheets that respectively carry two symmetrical fan-shaped water holes, two polishing potsherds with holes are pasted while relatively rotating, and the size of its water hole will be along with change; The matrix draw-in groove that stepper motor bearing connecting rod is provided with spool upper slice is that movable insertion is connected; On the potsherd edge of lower spool, be provided with symmetrical two convex snibs, this convex snib is fixed on spool in valve body, and be connected corresponding with valve interior wall Baltimore groove.Valve body is similar to traditional filter, and import/export direction is identified by " arrow ".Flow control valve is arranged on the water return pipeline of user side, has return valve function, thereby has the feature of safety water.Be embodied in: in the time that user discharges water from water return pipeline, " check-valves ", under " negative pressure " effect, will close the behavior of stopping to discharge water from water return pipeline automatically.As user discharges water from inlet channel, be arranged on inlet channel and must will count charge by calorimeter.Like this, for " heat exchange station " Energy Conservation has supplied a support link.
In the present invention, calorimeter is arranged on the inlet channel of user side, it is the metering unit of temperature control system, be used for gathering the information such as heat, inflow temperature, return water temperature, the temperature difference, cumulative flow value, and these gathered information be sent on the server of control centre for subsequent use through data concentrator.
Control centre described in the present invention is provided with master system, master system refers to for realizing the software to whole system control and management, comprising functional programs unit such as essential information, data analysis, hear rate analysis, water conservancy equilibrium analysis, the management of checking meter, payment management, Service Management, hot station administration, thermal source management, alarming and managing and group financial statements.
In a word, this method of utilizing said system to realize central heating metering and Energy Saving Control, is characterized in that: first, it can realize the autonomous room temperature regulation and control of user side; Secondly, it can realize the regulation and control of control centre to user side; Wherein, control centre to the regulation and control priority of user side higher than user from master regulation.Be embodied in: when control centre is during to user side design temperature higher limit, user side can only carry out the autonomous temperature adjusting in scope under this setting value.Again, it can realize the regulation and control of control centre to heat supply end (thermal substation).
The present invention also provides a kind of central heating control method, it is characterized in that by the regulation and control to user side from master regulation, control centre and the control centre of user side, the regulation and control of heat supply end being formed, wherein control centre to the regulation and control priority of user side the priority from master regulation higher than user side, concrete implementation step is as follows:
Described user side comprises the following steps from master regulation:
Steps A: first select control methods, comprise the instantaneous regulation and control of randomness and two kinds of modes of periodicity able to programme setting regulation and control;
Step B: input regulation and control instruction; In the time that user selects random instantaneous regulation and control, user, by operation indoor thermostat adjusting knob, writes required regulation and control data command; In the time that user selects periodicity able to programme to set control methods, user is by operation indoor thermostat functional form button and adjusting knob, writes required by the periodicity instruction of different periods.Indoor thermostat is sent to valve positioner by regulation and control instruction by wireless radiofrequency network (433MHz) transmission means;
Step C: the set signal RF receiver regulation and control instruction that receives and decode under single-chip microcomputer effect in valve positioner, then according to decoded result Driving Stepping Motor, and then control the aperture size of flow control valve, thereby the regulation and control of completing user end to self room temperature.
Described control centre comprises the following steps the regulation and control of user side:
Steps A: obtain user side heating information; Control centre is by GPRS or 3G network, through data converter, the information such as the room temperature of heat, inflow temperature, return water temperature, the temperature difference, integrated flux and the indoor thermostat record that the calorimeter that is arranged on user side is gathered are sent on the server of control centre, to obtain each user's hear rate relevant information;
Step B: the master system of control centre carries out automatic classification, statistics, calculating, analysis and processing to institute's obtaining information, then, according to management expectancy, is weighted, and finally draws needed regulation and control parameter value;
Step C: regulation and control parameter channel 1 is sent to valve positioner by the master system of control centre, valve positioner under inner single-chip microcomputer effect by these instructions of reception, decoding and computing, then, remove Driving Stepping Motor with operation result, to control the aperture of flow control valve, thereby complete the regulation and control of control centre to terminal temperature difference house lead in flow
Described control centre comprises the regulation and control to a circulating net and the regulation and control to secondary cycle net to the regulation and control of heat supply end, wherein according to the parameter of user side by control centre to the regulation and control of secondary cycle net, setup control order, frequency converter, motor in Long-distance Control secondary cycle net, and then the duty of the circulating pump that is connected with frequency converter of change, the valve that is connected with motor realizes; To realize by controlling an electric control valve in circulating net to the control of a circulating net
In a word, first the present invention realizes the regulation and control to user side, secondly realize the heat supply end regulation and control of (comprising middle-end and head end), farthest realize energy-conservation and raising heat supply efficiency, compared with prior art, it can balance user's request and central heating managerial demand between relation, both met user's heating comfort level and heat metering, reached again heating system energy-conservation and improve the object for heat unit service quality.Thereby heat metering and the energy-saving control management system of " heat supply end---heat supply middle-end---heat supply head end " comprehensive regulation and control are formed.
accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is structural representations of valve positioner in the present invention.
Accompanying drawing 3 is structural representations of indoor thermostat in the present invention.
Accompanying drawing 4 is structural representations of heat supply end in the present invention.
Reference numeral: indoor thermostat 1, valve positioner 2, flow control valve 3, calorimeter 4, data concentrator 5, data converter 6, master system 7, frequency converter 8, circulating pump 9, motor 10, valve 11, single-chip microcomputer 12, control circuit board 13, stepper motor 14, wireless communication module 15, functional form button 16, LCD display 17, adjusting knob 18, power switch button 19, remote-transmission module 20, electric control valve 21, climate compensator 22, valve controling circuit plate 23, plate type heat exchanger 24.
the specific embodiment:
Below in conjunction with accompanying drawing, the present invention will be further described.
A kind of central heating control system as shown in Figure 1, this system comprises user side, control centre and heat supply end, wherein user side is the terminal temperature difference in heating system, heat supply end comprises thermal source and heat exchange station, it is characterized in that control centre and user side set up two-way communication, control centre and heat supply end are set up two-way communication
Described user side comprises indoor thermostat 1, valve positioner 2, flow control valve 3, calorimeter 4, data concentrator 5, wherein indoor thermostat 1 is connected through wireless communication module 15 with valve positioner 2, the flow control valve 3 being arranged on hot duct is connected with valve positioner 2 through data wire, valve positioner 2 is connected with data concentrator 5 through data wire respectively with the calorimeter 4 being arranged on hot duct
Described control centre comprises hardware server, PC and for realizing the master system 7 to whole system control and management, described control centre is by GPRS or 3G network mode, set up two-way communication through data converter 6 and the data concentrator 5 of user side, this communication channel is designated as channel 1, control centre sets up two-way communication with the data concentrator 5 of heat supply middle-end and head end by GPRS or 3G network respectively through data converter 6, communication channel is designated as respectively channel 2, channel 3
As shown in Figure 4, described heat supply end comprises circulating net and secondary cycle net, between circulating net and secondary cycle net, be provided with plate type heat exchanger 24, wherein in a circulating net, be provided with electric control valve 21, climate compensator 22, in secondary cycle net, be provided with frequency converter 8, circulating pump 9, motor 10, valve 11, climate compensator 22 is connected with electric control valve 21, frequency converter 8 is connected with circulating pump 9, the output of motor 10 is connected with valve 11, valve 11 is arranged on the outside hot duct of heating end, control centre is connected to realize the control of control centre to heating end with frequency converter 8 and the motor 10 of heating end, specifically frequency converter 8 is controlled the circulating pump 9 of secondary side, circulating pump 9 moves according to preset pressure or flow changing curve, make two penultimate flows reach a desirable design and operation flow, the electric control valve 21 arranging at primary side, its function is mainly to control the flow of primary side, it is according to being that control command according to the hot situation of the use of secondary side and coupled climate compensator 22 regulates the flow in circulating net one time, wherein climate compensator 22 is the variation according to climatic environment, regulate automatically the electric control valve of primary side, the variation of the flow that the variation that makes its flow reach the thermic load producing due to Changes in weather causes.
In the present invention, between indoor thermostat 1 and valve positioner 2, communicate by letter through wireless radiofrequency network (433MHz) as shown in Figure 1, as shown in Figure 3 in the present invention indoor thermostat 1 by " function ", " setting ", " thermometric ", " programming ' a four functional form button 16; adjusting knob 18; power switch button 19; LCD display 17 and control circuit board 13 form; its effect is for realizing the random adjusting of user oneself to room temperature or the setting of periodicity room temperature able to programme, and with the information communication of control centre; Control circuit board 13 is provided with Radio-Frequency Wireless Communication module 15; Functional form button 16, adjusting knob 18, power switch button 19, LCD display 17 are connected with control circuit board 13 respectively, and indoor thermostat 1 is regulation and control and the display unit of user side in temperature control system.
In the present invention, valve positioner 2 is made up of protective casing and valve controling circuit plate 23 as shown in Figure 2, is that the control assembly of user side receives the decode for realizing the instruction of being assigned by indoor thermostat 1 and control centre; Wherein valve controling circuit plate 23 is provided with Radio-Frequency Wireless Communication module 15, decoding circuit, drive circuit, remote-transmission module 20 and single-chip microcomputer 12, the connection of each functional unit completes by the printed wiring of PBC plate, and valve positioner 2 is controlled the aperture size of flow control valve 3.
In the present invention, flow control valve 3 is for adjust flux size, it is the execution unit in temperature control system, it is made up of parts such as stepper motor 14, star-like spool, valve body and annexes, wherein star-like spool is made up of the upper and lower two round ceramic sheets that respectively carry two symmetrical fan-shaped water holes, two polishing potsherds with holes are pasted while relatively rotating, and the size of its water hole will be along with change; The matrix draw-in groove that stepper motor 14 bearing connecting rods are provided with spool upper slice is that movable insertion is connected; On the potsherd edge of lower spool, be provided with symmetrical two convex snibs, this convex snib is fixed on spool in valve body, and be connected corresponding with valve interior wall Baltimore groove.Valve body is similar to traditional filter, and import/export direction is identified by " arrow ".
In use, in the present invention, calorimeter 4 is arranged on the inlet channel of user side, it is the metering unit of temperature control system, be used for gathering the information such as heat, inflow temperature, return water temperature, the temperature difference, cumulative flow value, and these gathered information be sent on the server of control centre for subsequent use through data concentrator 5.
Control centre described in the present invention is provided with master system 7, master system 7 refers to for realizing the software to whole system control and management, comprising functional programs unit such as essential information, data analysis, hear rate analysis, water conservancy equilibrium analysis, the management of checking meter, payment management, Service Management, hot station administration, thermal source management, alarming and managing and group financial statements.
In a word, this method of utilizing said system to realize central heating metering and Energy Saving Control, is characterized in that: first, it can realize the autonomous room temperature regulation and control of user side; Secondly, it can realize the regulation and control of control centre to user side; Wherein, control centre to the regulation and control priority of user side higher than user from master regulation, be embodied in: when control centre is during to user side design temperature higher limit, user side can only carry out the autonomous temperature adjusting in scope under this setting value, secondly, it can realize the regulation and control of control centre to heat supply end (thermal substation).
The present invention also provides a kind of central heating control method, it is characterized in that by the regulation and control to user side from master regulation, control centre and the control centre of user side, the regulation and control of heat supply end being formed, wherein control centre to the regulation and control priority of user side the priority from master regulation higher than user side, concrete implementation step is as follows:
Described user side comprises the following steps from master regulation:
Steps A: first select control methods, comprise the instantaneous regulation and control of randomness and two kinds of modes of periodicity able to programme setting regulation and control;
Step B: input regulation and control instruction; In the time that user selects random instantaneous regulation and control, user, by the adjusting knob 18 of operation indoor thermostat 1, writes required regulation and control data command; In the time that user selects periodicity able to programme to set control methods, user is by functional form button 16 and the adjusting knob 18 of operation indoor thermostat 1, write requiredly by the periodicity instruction of different periods, indoor thermostat 1 is sent to valve positioner 2 by regulation and control instruction by wireless radiofrequency network (433MHz) transmission means;
Step C: the interior set signal RF receiver of valve positioner 2 regulation and control instruction that receives and decode under single-chip microcomputer 12 effect, then according to decoded result Driving Stepping Motor 14, and then control the aperture size of flow control valve 3, thereby the regulation and control of completing user end to self room temperature
Described control centre comprises the following steps the regulation and control of user side:
Steps A: obtain user side heating information; Control centre is by GPRS or 3G network, through data converter 6, the information such as the room temperature that heat, inflow temperature, return water temperature, the temperature difference, integrated flux and the indoor thermostat 1 that the calorimeter 4 that is arranged on user side is gathered records are sent on the server of control centre, to obtain each user's hear rate relevant information; Step B: the master system 7 of control centre carries out automatic classification, statistics, calculating, analysis and processing to institute's obtaining information, is then weighted and draws needed regulation and control parameter value according to management expectancy; Step C: regulation and control parameter channel 1 is sent to valve positioner 2 by the master system 7 of control centre, valve positioner 2 under 12 effects of inner single-chip microcomputer by these instructions of reception, decoding and computing, then, remove Driving Stepping Motor 14 with operation result, to control the size of flow control valve 3 apertures, thereby complete the regulation and control of control centre to terminal temperature difference house lead in flow.
Described control centre comprises the control to a circulating net and the control to secondary cycle net to the regulation and control of heat supply end, wherein according to the parameter of user side by control centre to the control of secondary cycle net, setup control order, frequency converter in Long-distance Control secondary cycle net, and then the duty of the circulating pump 9 that is connected with frequency converter 8 of change realizes; Be to realize by controlling an electric control valve 21 in circulating net to the control of a circulating net, in specific implementation process, can realize by following measures:
Steps A: the heat relevant information of obtaining user side and heat station; The indoor temperature information that heat, inflow temperature, return water temperature, the temperature difference, integrated flux and the indoor thermostat 1 that the calorimeter 4 that is arranged on user side is gathered records, by data converter 6, data concentrator 5 " channel 1 ", be sent on the server of control centre for subsequent use through GPRS or 3G network; Meanwhile, by the relevant caloric information of heat exchange station in heat supply end through GPRS or 3G network by data converter, data concentrator " channel 2 ", be sent on the server of control centre for subsequent use; Step B: the master system 7 of control centre, to obtained information, under management software unit effect, machine automatically calculates, analyzes and processing etc. as calculated, thus the control instruction of drawing; Step C: the master system 7 of control centre, by drawn control instruction, pass through data converter 6, data concentrator 5 " channel 2 " through GPRS or 3G network, control the frequency converter 8 of heat supply middle-end heat exchange station, regulation and control circulating pump 9 moves, and then realizes the regulation and control to output uninterrupted; Go on the other hand to control the aperture size of an electric control valve in circulating net, thereby realize the control to heat supply end.
In a word, first the present invention realizes the regulation and control to user side, secondly realize the heat supply end regulation and control of (comprising middle-end and head end), farthest realize energy-conservation and raising heat supply efficiency, compared with prior art, it can balance user's request and central heating managerial demand between relation, both met user's heating comfort level and heat metering, reached again heating system energy-conservation and improve the object for heat unit service quality.Thereby heat metering and the energy-saving control management system of " heat supply end---heat supply middle-end---heat supply head end " comprehensive regulation and control are formed.
Claims (1)
1. a central heating control method, it is characterized in that by the regulation and control to user side from master regulation, control centre and the control centre of user side, the regulation and control of heat supply end being formed, wherein control centre to the regulation and control priority of user side the priority from master regulation higher than user side, concrete implementation step is as follows:
Described user side comprises the following steps from master regulation:
Steps A: first select control methods, comprise the instantaneous regulation and control of randomness and two kinds of modes of periodicity able to programme setting regulation and control;
Step B: input regulation and control instruction; In the time that user selects random instantaneous regulation and control, user, by operation indoor thermostat adjusting knob, writes required regulation and control data command; In the time that user selects periodicity able to programme to set control methods, user is by operation indoor thermostat functional form button and adjusting knob, write requiredly by the periodicity instruction of different periods, the wireless radiofrequency Internet Transmission mode that indoor thermostat is 433MHz by regulation and control instruction by bandwidth of operation is sent to valve positioner;
Step C: the set signal RF receiver regulation and control instruction that receives and decode under single-chip microcomputer effect in valve positioner, then according to decoded result Driving Stepping Motor, and then control the aperture size of flow control valve, thereby the regulation and control of completing user end to self room temperature;
Control centre comprises the following steps the regulation and control of user side:
Steps A: obtain user side heating information; Control centre is by GPRS or 3G network, through data converter, the room temperature information of heat, inflow temperature, return water temperature, the temperature difference, integrated flux and the indoor thermostat record that the calorimeter that is arranged on user side is gathered is sent on the server of control centre, to obtain each user's hear rate relevant information;
Step B: the master system of control centre carries out automatic classification, statistics, calculating, analysis and processing to institute's obtaining information, then, according to management expectancy, is weighted, and finally draws needed regulation and control parameter value;
Step C: regulation and control parameter channel 1 is sent to valve positioner by the master system of control centre, valve positioner under inner single-chip microcomputer effect by these instructions of reception, decoding and computing, then, remove Driving Stepping Motor with operation result, to control the size of Flow-rate adjustment valve opening, thereby complete the regulation and control of control centre to terminal temperature difference house lead in flow
Described control centre comprises the regulation and control to a circulating net and the regulation and control to secondary cycle net to the regulation and control of heat supply end, wherein according to the parameter of user side by control centre to the control of secondary cycle net, setup control order, frequency converter, motor in Long-distance Control secondary cycle net, and then the duty of the circulating pump that is connected with frequency converter of change, the valve that is connected with motor realizes; To realize by controlling an electric control valve in circulating net to the control of a circulating net.
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| CN201110425538.3A CN102519083B (en) | 2011-12-19 | 2011-12-19 | Central heating control system and method |
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| CN201110425538.3A CN102519083B (en) | 2011-12-19 | 2011-12-19 | Central heating control system and method |
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| DE3310214A1 (en) * | 1983-03-21 | 1984-09-27 | Loewe Pumpenfabrik GmbH, 2120 Lüneburg | Control system for heating installations and the like |
| GB2389187A (en) * | 2002-05-09 | 2003-12-03 | Gledhill Water Storage | Monitoring and analysing the functioning of a water heating system |
| CN200955811Y (en) * | 2006-09-22 | 2007-10-03 | 朱杰 | Metering and monitoring device for centralized heating system |
| CN201892880U (en) * | 2010-11-26 | 2011-07-06 | 东方电子集团有限公司 | Heat metering and energy-saving control device for heat supply system |
| CN202066092U (en) * | 2011-04-02 | 2011-12-07 | 尹海炎 | Flow-self-adaptive hot water heating and heat-exchange unit |
| CN202350191U (en) * | 2011-12-19 | 2012-07-25 | 威海米特智能仪表有限公司 | Concentrated heating control device |
-
2011
- 2011-12-19 CN CN201110425538.3A patent/CN102519083B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3310214A1 (en) * | 1983-03-21 | 1984-09-27 | Loewe Pumpenfabrik GmbH, 2120 Lüneburg | Control system for heating installations and the like |
| GB2389187A (en) * | 2002-05-09 | 2003-12-03 | Gledhill Water Storage | Monitoring and analysing the functioning of a water heating system |
| CN200955811Y (en) * | 2006-09-22 | 2007-10-03 | 朱杰 | Metering and monitoring device for centralized heating system |
| CN201892880U (en) * | 2010-11-26 | 2011-07-06 | 东方电子集团有限公司 | Heat metering and energy-saving control device for heat supply system |
| CN202066092U (en) * | 2011-04-02 | 2011-12-07 | 尹海炎 | Flow-self-adaptive hot water heating and heat-exchange unit |
| CN202350191U (en) * | 2011-12-19 | 2012-07-25 | 威海米特智能仪表有限公司 | Concentrated heating control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102519083A (en) | 2012-06-27 |
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