CN102878611B - Heating pipe network fine regulation system and method - Google Patents
Heating pipe network fine regulation system and method Download PDFInfo
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Abstract
The invention relates to a heating pipe network fine regulation system and method. The system includes a first-stage pipe network, a plurality of second-stage pipe networks, a plurality of third-stage inhabitant pipe networks and a monitoring server, wherein the first-stage pipe network and the plurality of second-stage pipe networks are connected respectively through a plurality of first-stage heat exchangers in a mutual heat exchange manner; the second-stage pipe networks and the third-stage inhabitant pipe networks are connected respectively through second-stage heat exchangers in a mutual heat exchange manner; and the monitoring server is connected with the first-stage pipe network, the second-stage pipe networks and the third-stage inhabitant pipe networks. Compared with the traditional heat supply system, the system provided by the invention solves the problem of impact of thermal inertia as well as sharp temperature increase and drop of the heat supply system on safe and stable operation of the heat supply system, and the problem of lost connection of weather compensation actual measurement transmission; and a water-water heat exchanger is additionally mounted between a second-stage network system and a third-stage household heat supply system to avoid the accident caused by water shortage of heat supply equipment of heat users, the household heat supply system adopts a small-sized variable frequency circulating pump, so that heat users can adjust and control independently as per self heat requirements, and household metering is realized in deed.
Description
Technical field
The invention belongs to field, urban heating network, the particularly meticulous regulating system of a kind of heating network and method, this system is separated the heating system in secondary network system and hot user family, has solved the serious water loss problem of secondary network system; This system is secondary network system stability of flow not only, is conducive to the safe operation of hydraulically balanced adjusting and heat exchange station equipment, and hot user can, according to the heat demand of using of oneself, from master regulation, really realize household metering.
Background technology
Along with the development of city size, concentrated supply of heating in the city area constantly increases.During " 12 ", northeast, North China, the resident's heating of big city, the Northwest adopt basic implementation central heating regenerative resource except having ready conditions, back pressure type thermoelectricity or central heating transformation are suited measures to local conditions to develop in small and medium-sized cities, improve the proportion of cogeneration of heat and power in central heating.Heat supply network is automatically-monitored is the inexorable trend of central heating industry development, and is to realize the key that automation is controlled to the correct Prediction of temperature.Current, heating system adopts weather compensation technology, real temperature when data source is weather station, and there is following shortcoming in which:
1. the circulatory system of central heating has hysteresis quality (thermal inertia), causes lagging behind building heat demand curve for heating curve, has so just reduced house environmental amenity, wastes a large amount of heats simultaneously;
2. weather transient temperature is poly-falls or poly-liter can cause heating system paralysis, affects the stable operation of heat supply network, has potential safety hazard;
3. there is lost line in the transmission of weather temperature signal, and cause heating curve and actual Architecture Curve are not inconsistent, and have affected resident's heating comfort, cause Residents to report for repairment, complain to the higher authorities about an injustice and request fair settlement.
During " 12 ", the heat metering transformation of 500,000,000 square meter heating areas will be carried out by Beijing.According to current central heating system, heat metering because behavior energy saving can cause the variation of two net flows, and then causes two net system waterpower unbalance after installing and using, and can cause like this waste of large energy and the reduction of hot user's architectural environment comfort level.
Summary of the invention
In order to address the above problem, the invention provides the technical scheme of the meticulous regulating system of a kind of heating network and method, this scheme is separated the heating system in secondary network system and hot user family, has solved the serious water loss problem of secondary network system; This system is secondary network system stability of flow not only, is conducive to the safe operation of hydraulically balanced adjusting and heat exchange station equipment, and hot user can, according to the heat demand of using of oneself, from master regulation, really realize household metering.
Technical scheme of the present invention is:
The meticulous regulating system of a kind of heating network, comprise first-level pipeline network, a plurality of secondary network and a plurality of San Ji resident family's pipe network and monitoring server, between described first-level pipeline network and a plurality of secondary network by a plurality of one-level water-water heat exchangers respectively mutual heat exchange connect, between secondary network and a plurality of San Ji resident family pipe network by a plurality of secondary water-water heat exchangers respectively mutual heat exchange connect, monitoring server connects respectively first-level pipeline network, a plurality of secondary network and a plurality of San Ji resident family pipe network; Wherein,
Described first-level pipeline network comprises boiler, one-level circulating pump, one-level small pump, one-level water supply tank, a plurality of force (forcing) pump, a pipe string of described a plurality of one-level water-water heat exchangers of described one-level circulating pump and parallel connection is connected in boiler circulating water line, wherein, the delivery port of one-level circulating pump connects boiler circulating water pipe water inlet pipe, the water inlet of one-level circulating pump connects the once delivery port of pipe of one-level water-water heat exchanger, a plurality of force (forcing) pumps are serially connected in respectively boiler discharging tube to a plurality of one-level water-water heat exchangers once between the water inlet of pipe, described one-level water supply tank is connected to the water inlet of one-level circulating pump by one-level small pump, balance pipe of cross-over connection between described one-level circulating pump water inlet and boiler delivery port,
Described a plurality of secondary network comprises respectively secondary circulating pump, secondary small pump and secondary water supply tank, described secondary circulating pump and one-level water-water heat exchanger secondary pipe string are connected in the circulating water line of secondary network, secondary water supply tank is connected with the water inlet of secondary circulating pump by secondary small pump, the delivery port of secondary small pump is connected to the water inlet of one-level water-water heat exchanger secondary pipe, once managing in the circulating water line that is serially connected in secondary network parallel with one another of a plurality of secondary water-water heat exchangers, wherein, secondary water-water heat exchanger is the delivery port of the water inlet connection one-level water-water heat exchanger secondary pipe of pipe once, secondary water-water heat exchanger is the water inlet of the delivery port connection secondary circulating pump of pipe once,
Described a plurality of San Ji resident family pipe network comprises respectively resident family's heat exchanger and three grades of circulating pumps, described resident family heat exchanger is mutually connected in series by pipeline and is connected with the secondary pipeline of secondary water-water heat exchanger with three grades of circulating pumps, described one-level water-water heat exchanger once the water inlet of pipe and the delivery port of one-level water-water heat exchanger secondary pipe be respectively arranged with temperature sensor, temperature sensor signal is passed to monitoring server.
Scheme is further, described one-level circulating pump, three grades of circulating pumps are respectively frequency modulation control circulating pumps, described secondary circulating pump is power frequency circulating pump, the end of registering one's residence of described secondary network is provided with heat metering device, in heat metering device, be provided with wireless receiver, described San Ji resident family network collocation has temperature controller, in temperature controller, be provided with wireless launcher, the FM signal of temperature controller is connected with three grades of frequency modulation control circulating pumps, FM signal is connected with heat metering device by wireless launcher, heat metering device by data-signal by network delivery to monitoring server.
Scheme further, is provided with valve on described balance pipe.
The meticulous control method of heating network: described method is the control method that the meticulous regulating system of a kind of heating network based on above-mentioned realizes, comprises and sets up the Calculating Temperature Variation model step of a prediction and control the stable step of first-level pipeline network according to Calculating Temperature Variation model;
The described Calculating Temperature Variation model step of setting up a prediction is: obtain the weather data of next day, according to formula
simulate the temperature changing trend of a day, wherein, Ts is the transient temperature of different time points, and Tg is maximum temperature in a day, and Td is minimum temperature in a day, and α is the coefficient of different weather, different time points;
Describedly according to Calculating Temperature Variation model, control the stable step of first-level pipeline network and be: the inlet temperature of once pipe of the one-level water-water heat exchanger of different time points is set according to the Calculating Temperature Variation model of prediction, according to inlet temperature, stablizes boiler operatiopn.
Further, described different weather refers to cloudy day, fine day and snowy day to scheme, and described different time points refers to 0 to 23 integral point.
Further, the value range of described α is 0 to 0.5 to scheme.
The invention has the beneficial effects as follows, compare with traditional heating system, one-level net system of the present invention is according to the temperature changing trend of temperature model prediction, amount adjusting and matter by circulating hot water regulate, realize the uniformity for heating curve and building heat demand curve, solved poly-the liter or the poly-disconnection falling the impact of heating system safe and stable operation and the transmission of weather compensation observed temperature of thermal inertia problem, temperature of heating system; Between secondary network system and three grades of individual household heat supply systems, install water-water heat exchanger additional, and adopt constant flow, matter to regulate, advantage is the accident that secondary network system run all right has avoided the dehydration due to hot user's heating equipment to cause, skyscraper is district heating no longer, meanwhile, installing heat metering additional causes the problem of secondary network changes in flow rate to be resolved; Individual household heat supply system adopts small-sized variable-frequency circulating pump, hot user can according to oneself with heat demand from master regulation, really realize household metering.
Below in conjunction with drawings and Examples, invention is described in detail.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is the Changes in weather curve synoptic diagram of some day of the present invention.
The specific embodiment
Embodiment 1;
The meticulous regulating system embodiment of a kind of heating network, referring to Fig. 1, described system comprises first-level pipeline network 1, a plurality of secondary network 2 and a plurality of San Ji resident family's pipe network 3 and monitoring server (not shown), between described first-level pipeline network and a plurality of secondary network by a plurality of one-level water-water heat exchangers 4 respectively mutual heat exchange connect, between secondary network and a plurality of San Ji resident family pipe network by a plurality of secondary water-water heat exchangers 5 respectively mutual heat exchange connect, monitoring server connects respectively first-level pipeline network, a plurality of secondary network and a plurality of San Ji resident family pipe network; Wherein,
Described first-level pipeline network comprises boiler 1-1, one-level circulating pump 1-2, one-level small pump 1-3, one-level water supply tank 1-4, a plurality of force (forcing) pump 1-5, the once pipe 4-1 of described a plurality of one-level water-water heat exchangers of described one-level circulating pump and parallel connection is serially connected in boiler circulating water line, wherein, the delivery port of one-level circulating pump connects boiler circulating water pipe water inlet pipe, the water inlet of one-level circulating pump connects the once delivery port of pipe of one-level water-water heat exchanger, a plurality of force (forcing) pumps are serially connected in respectively boiler discharging tube to a plurality of one-level water-water heat exchangers once between the water inlet of pipe, described one-level water supply tank is connected to the water inlet of one-level circulating pump by one-level small pump, the balance pipe 1-6 of a stable boiler hot-water flow of cross-over connection between described one-level circulating pump water inlet and boiler delivery port,
Described a plurality of secondary network comprises respectively secondary circulating pump 2-1, secondary small pump 2-2 and secondary water supply tank 2-3, described secondary circulating pump and one-level water-water heat exchanger secondary pipe 4-2 are serially connected in the circulating water line of secondary network, secondary water supply tank is connected with the water inlet of secondary circulating pump by secondary small pump, the delivery port of secondary small pump is connected to the water inlet of one-level water-water heat exchanger secondary pipe, once managing in the 5-1 circulating water line that is serially connected in secondary network parallel with one another of a plurality of secondary water-water heat exchangers, wherein, secondary water-water heat exchanger is the delivery port of the water inlet connection one-level water-water heat exchanger secondary pipe of pipe once, secondary water-water heat exchanger is the water inlet of the delivery port connection secondary circulating pump of pipe once,
Described a plurality of San Ji resident family pipe network comprises respectively the heat exchanger 3-1 of resident family and three grades of circulating pump 3-2, described resident family heat exchanger is mutually connected in series by pipeline and is connected with the secondary pipeline 5-2 of secondary water-water heat exchanger with three grades of circulating pumps, described one-level water-water heat exchanger once the water inlet of pipe and the delivery port of one-level water-water heat exchanger secondary pipe be respectively arranged with temperature sensor 1-7 and 2-4, temperature sensor signal is passed to monitoring server.
In above-described embodiment, first-level pipeline network is arranged in boiler room, its water circulation system is opened by one-level water-water heat exchanger and secondary network lattice, has avoided the impact that goes wrong first-level pipeline network is caused due to secondary pipe network water route, has guaranteed the stability of boiler operatiopn.
In embodiment, secondary network is not the circulatory system of direct house lead in traditional sense, but be divided into some heat supply blocks one of them for hot-zone, the water circulation system of this secondary network is also an independently system, Er Sanji resident family pipe network is to be connected in secondary network by a plurality of secondary water-water heat exchangers, San Ji resident family pipe network and secondary network are separate pipe networks, solved in the past resident family's pipe network and born heating pipe network high pressure and easily go wrong, once go wrong as repaiied not in time the whole heat supply of impact.
In embodiment, in order to realize described one-level circulating pump, the Digital Control of three grades of circulating pumps, described one-level circulating pump, three grades of circulating pumps are respectively frequency modulation control circulating pumps, the power frequency circulating pump that described secondary circulating pump is civil power, so secondary circulation is constant flow circulation.
In embodiment, the heat of using for rational metering user, the end of registering one's residence of described secondary network is provided with heat metering device 2-5, in heat metering device, be provided with wireless receiver, described San Ji resident family network collocation has temperature controller 3-3, temperature controller can gather indoor temperature, can to the requirement of indoor temperature, regulate according to resident family the running frequency of three grades of circulating pumps, three grades of circulating pump frequencies or electric current are as the foundation of heat sharing, in temperature controller, be provided with wireless launcher, the FM signal of temperature controller is connected with three grades of frequency modulation control circulating pumps, FM signal is connected with heat metering device by wireless launcher, heat metering device by data-signal by network delivery to monitoring server.This kind of structure can be shared unit total amount of heat the reasonability that has guaranteed that user's heat calculates according to the flow of each household.
In embodiment, because force (forcing) pump can constantly be adjusted according to the needs of user's temperature, the one-level water-water heat exchanger once quantity of circulating water of pipe can constantly change, therefore, steady in order to guarantee boiler operatiopn, balance pipe of cross-over connection between described one-level circulating pump water inlet and boiler delivery port, and on described balance pipe, be provided with valve 1-8.
Embodiment 2;
The meticulous control method embodiment of a kind of heating network: described method is the control method that the meticulous regulating system of a kind of heating network based on embodiment 1 realizes, comprise first-level pipeline network 1, a plurality of secondary networks 2 and a plurality of San Ji resident family's pipe network 3 and monitoring server (not shown), between described first-level pipeline network and a plurality of secondary network by a plurality of one-level water-water heat exchangers 4 respectively mutual heat exchange connect, between secondary network and a plurality of San Ji resident family pipe network by a plurality of secondary water-water heat exchangers 5 respectively mutual heat exchange connect, monitoring server connects respectively first-level pipeline network, a plurality of secondary networks and a plurality of San Ji resident family pipe network, wherein,
Described first-level pipeline network comprises boiler 1-1, one-level circulating pump 1-2, one-level small pump 1-3, one-level water supply tank 1-4, a plurality of force (forcing) pump 1-5, the once pipe 4-1 of described a plurality of one-level water-water heat exchangers of described one-level circulating pump and parallel connection is serially connected in boiler circulating water line, wherein, the delivery port of one-level circulating pump connects boiler circulating water pipe water inlet pipe, the water inlet of one-level circulating pump connects the once delivery port of pipe of one-level water-water heat exchanger, a plurality of force (forcing) pumps are serially connected in respectively boiler discharging tube to a plurality of one-level water-water heat exchangers once between the water inlet of pipe, described one-level water supply tank is connected to the water inlet of one-level circulating pump by one-level small pump, the balance pipe 1-6 of a stable boiler hot-water flow of cross-over connection between described one-level circulating pump water inlet and boiler delivery port,
Described a plurality of secondary network comprises respectively secondary circulating pump 2-1, secondary small pump 2-2 and secondary water supply tank 2-3, described secondary circulating pump and one-level water-water heat exchanger secondary pipe 4-2 are serially connected in the circulating water line of secondary network, secondary water supply tank is connected with the water inlet of secondary circulating pump by secondary small pump, the delivery port of secondary small pump is connected to the water inlet of one-level water-water heat exchanger secondary pipe, once managing in the 5-1 circulating water line that is serially connected in secondary network parallel with one another of a plurality of secondary water-water heat exchangers, wherein, secondary water-water heat exchanger is the delivery port of the water inlet connection one-level water-water heat exchanger secondary pipe of pipe once, secondary water-water heat exchanger is the water inlet of the delivery port connection secondary circulating pump of pipe once,
Described a plurality of San Ji resident family pipe network comprises respectively the heat exchanger 3-1 of resident family and three grades of circulating pump 3-2, described resident family heat exchanger is mutually connected in series by pipeline and is connected with the secondary pipeline 5-2 of secondary water-water heat exchanger with three grades of circulating pumps, described one-level water-water heat exchanger once the water inlet of pipe and the delivery port of one-level water-water heat exchanger secondary pipe be respectively arranged with temperature sensor 1-7 and 2-4, temperature sensor signal is passed to monitoring server; Described control method comprises to be set up the Calculating Temperature Variation model step of a prediction and controls the stable step of first-level pipeline network according to Calculating Temperature Variation model;
The described Calculating Temperature Variation model step of setting up a prediction is: obtain the weather data of next day, according to formula
simulate the temperature changing trend of a day, wherein, Ts is the transient temperature of different time points in a day, and Tg is maximum temperature in a day, and Td is minimum temperature in a day, and α is the coefficient of different weather, different time points;
Describedly according to Calculating Temperature Variation model, control the stable step of first-level pipeline network and be: the inlet temperature of once pipe of the one-level water-water heat exchanger of next day different time points is set according to the Calculating Temperature Variation model of prediction, according to inlet temperature, stablizes boiler operatiopn.
In embodiment, described different weather refers to cloudy day, fine day and snowy day, and described different time points refers to 0 to 23 integral point.
In embodiment, the value range of described α is 0 to 0.5.
Fig. 2 has illustrated to calculate by above-mentioned formula on February 5th, 2012 relation curve of the temperature and time that the temperature a of each integral point simulates, Mathematical Modeling is embedded in the monitoring server of heat supply network automation control system, has realized the stabilizing energy-saving operation of heating system.
In embodiment, obtain the weather data of next day, it is the weather data of the second day that obtains by weather forecast, adopt the control of this kind of mode, avoided the asynchronous control method that then traditional control network regulates from control centre's Real-time Obtaining temperature, temperature controlled the lagging that asynchronous control method is brought causes system to control paralysis if there is temperature transmission abnormality simultaneously.And the operation that adopts the present embodiment method can stablize primary network station, facts have proved reliable, efficiency is high.
Claims (6)
1. the meticulous regulating system of heating network, comprise first-level pipeline network, it is characterized in that, described system also comprises a plurality of secondary networks and a plurality of San Ji resident family's pipe network and monitoring server, between described first-level pipeline network and a plurality of secondary network by a plurality of one-level water-water heat exchangers respectively mutual heat exchange connect, between secondary network and a plurality of San Ji resident family pipe network by a plurality of secondary water-water heat exchangers respectively mutual heat exchange connect, monitoring server connects respectively first-level pipeline network, a plurality of secondary network and a plurality of San Ji resident family pipe network; Wherein,
Described first-level pipeline network comprises boiler, one-level circulating pump, one-level small pump, one-level water supply tank, a plurality of force (forcing) pump, a pipe string of described a plurality of one-level water-water heat exchangers of described one-level circulating pump and parallel connection is connected in boiler circulating water line, wherein, the delivery port of one-level circulating pump connects boiler circulating water pipe water inlet pipe, the water inlet of one-level circulating pump connects the once delivery port of pipe of one-level water-water heat exchanger, a plurality of force (forcing) pumps are serially connected in respectively boiler discharging tube to a plurality of one-level water-water heat exchangers once between the water inlet of pipe, described one-level water supply tank is connected to the water inlet of one-level circulating pump by one-level small pump, balance pipe of cross-over connection between described one-level circulating pump water inlet and boiler delivery port,
Described a plurality of secondary network comprises respectively secondary circulating pump, secondary small pump and secondary water supply tank, described secondary circulating pump and one-level water-water heat exchanger secondary pipe string are connected in the circulating water line of secondary network, secondary water supply tank is connected with the water inlet of secondary circulating pump by secondary small pump, the delivery port of secondary small pump is connected to the water inlet of one-level water-water heat exchanger secondary pipe, once managing in the circulating water line that is serially connected in secondary network parallel with one another of a plurality of secondary water-water heat exchangers, wherein, secondary water-water heat exchanger is the delivery port of the water inlet connection one-level water-water heat exchanger secondary pipe of pipe once, secondary water-water heat exchanger is the water inlet of the delivery port connection secondary circulating pump of pipe once,
Described a plurality of San Ji resident family pipe network comprises respectively resident family's heat exchanger and three grades of circulating pumps, described resident family heat exchanger is mutually connected in series by pipeline and is connected with the secondary pipeline of secondary water-water heat exchanger with three grades of circulating pumps, described one-level water-water heat exchanger once the water inlet of pipe and the delivery port of one-level water-water heat exchanger secondary pipe be respectively arranged with temperature sensor, temperature sensor signal is passed to monitoring server.
2. the meticulous regulating system of heating network according to claim 1, it is characterized in that, described one-level circulating pump, three grades of circulating pumps are respectively frequency modulation control circulating pumps, described secondary circulating pump is power frequency circulating pump, the end of registering one's residence of described secondary network is provided with heat metering device, in heat metering device, be provided with wireless receiver, described San Ji resident family network collocation has temperature controller, in temperature controller, be provided with wireless launcher, the FM signal of temperature controller is connected with three grades of frequency modulation control circulating pumps, FM signal is connected with heat metering device by wireless launcher, heat metering device by data-signal by network delivery to monitoring server.
3. the meticulous regulating system of heating network according to claim 1, is characterized in that, on described balance pipe, is provided with valve.
4. the meticulous control method of heating network: described method is the control method of realizing based on the meticulous regulating system of heating network claimed in claim 1, it is characterized in that, described method comprises to be set up the Calculating Temperature Variation model step of a prediction and controls the stable step of first-level pipeline network according to Calculating Temperature Variation model;
The described Calculating Temperature Variation model step of setting up a prediction is: obtain the weather data of next day, according to formula
simulate the temperature changing trend of a day, wherein, Ts is the transient temperature of different time points, and Tg is maximum temperature in a day, and Td is minimum temperature in a day, and α is the coefficient of different weather, different time points;
Describedly according to Calculating Temperature Variation model, control the stable step of first-level pipeline network and be: the inlet temperature of once pipe of the one-level water-water heat exchanger of different time points is set according to the Calculating Temperature Variation model of prediction, according to inlet temperature, stablizes boiler operatiopn.
5. the meticulous control method of heating network according to claim 4, is characterized in that, described different weather refers to cloudy day, fine day and snowy day, and described different time points refers to 0 to 23 integral point.
6. the meticulous control method of heating network according to claim 4, is characterized in that, the value range of described α is 0 to 0.5.
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| CN104728898A (en) * | 2015-03-12 | 2015-06-24 | 朱海龙 | Heat supply pipe network heat pump adjusting system |
| CN104990134B (en) * | 2015-07-23 | 2018-06-01 | 广东艾科技术股份有限公司 | Variable-flow and the central heating system of household metering and hydraulic equilibrium adjusting method |
| CN105222286A (en) * | 2015-11-10 | 2016-01-06 | 苏州海而仕信息科技有限公司 | The constant-temperature control method of water-cooled central air-conditioning |
| CN105805906B (en) * | 2016-04-28 | 2022-05-20 | 深圳市海吉源科技有限公司 | Multi-stage pump long-distance conveying system of centralized cooling and heating plant |
| CN108800266A (en) * | 2018-03-30 | 2018-11-13 | 河南三张节能环保工程有限公司 | A kind of ground source heating system suitable for high-rise building |
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| CN2878988Y (en) * | 2005-12-23 | 2007-03-14 | 李玫 | Household combined heat exchanger |
| CN201177315Y (en) * | 2008-02-19 | 2009-01-07 | 沈阳市金鑫冷暖设备制造安装有限公司 | High and low area, high and low temperature mixed water heat supply straight-linked heating system |
| LT5778B (en) * | 2010-02-24 | 2011-10-25 | Genadij Pavlovskij | Centralized heat and hot water supply system |
| CN102012065B (en) * | 2010-11-26 | 2012-11-28 | 东方电子集团有限公司 | Heating system heat metering and heat energy-saving control method and special device thereof |
| CN202432602U (en) * | 2012-01-16 | 2012-09-12 | 卓旦春 | Heating medium regulation and control system of heating power station |
| CN202868854U (en) * | 2012-11-05 | 2013-04-10 | 北京大龙供热中心 | Fine control system for heat supply pipe network |
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