WO2022121074A1 - 供热温度曲线和水力平衡调节的数字化模拟系统及方法 - Google Patents

供热温度曲线和水力平衡调节的数字化模拟系统及方法 Download PDF

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Publication number
WO2022121074A1
WO2022121074A1 PCT/CN2021/070447 CN2021070447W WO2022121074A1 WO 2022121074 A1 WO2022121074 A1 WO 2022121074A1 CN 2021070447 W CN2021070447 W CN 2021070447W WO 2022121074 A1 WO2022121074 A1 WO 2022121074A1
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Prior art keywords
simulation unit
heat
water tank
unit
heating
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PCT/CN2021/070447
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English (en)
French (fr)
Inventor
梁雪
赵志强
逄海澄
张济武
王明星
王恒
栾圣辉
张海波
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青岛新奥能源有限公司
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Publication of WO2022121074A1 publication Critical patent/WO2022121074A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009Arrangement or mounting of control or safety devices for water heating systems for central heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/32Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Definitions

  • the invention relates to the technical field of heating test simulation, in particular to a digital simulation system and method for heating temperature curve and hydraulic balance adjustment.
  • the setting of the heating operation curve is based on empirical values. It has not been tested by tests and actual operation, and there is no iteration of data optimization. It is impossible to accurately achieve the same heating effect in different environments. There are still cases where the indoor heating temperature is high when the outdoor temperature is high or the weather is good, and the indoor heating temperature is low when the outdoor temperature is low or the weather is bad; at the same time, there is no hydraulic balance for the heating system. A platform that can be operated in a simulated manner cannot concretize and digitize the hydraulic balance. The actual adjustment process lacks operability and reproducibility. There are still cases where intermediate users open windows to dissipate heat, and the temperature of users on the top floor of side houses does not meet the standard. In order to improve this situation For the problems of no energy saving and poor heating experience, it is necessary to provide a simulation system to simulate it, so as to better determine the heating curve and adjust the hydraulic balance.
  • the hydraulic balance is standardized and digitally set through experiments, and finally the energy saving and consumption reduction of heating and the complementary heating of multiple heat sources are realized.
  • the invention provides a heating temperature curve and hydraulic power
  • the digital analog system and method for balance adjustment, the specific technical solutions are as follows.
  • a digital simulation system for heating temperature curve and hydraulic balance adjustment including a heat source simulation unit, a heat exchange simulation unit, a user simulation unit and a control unit
  • the heat source simulation unit includes a solar heat collector, a gas water heater and a heat preservation water tank.
  • the heat collecting device and the gas water heater are arranged side by side, the hot water pipe collects the hot water and is stored in the heat preservation water tank, and the heat preservation water tank is connected with the heat exchange simulation unit; It is connected to the pipeline downstream of the circulating pump, the plate heat exchanger is used to supply water through the circulating pump, and the plate heat exchanger is connected to the user simulation unit.
  • the user simulation unit includes a single-tube series circulation device, a double-tube series A floor heating device and a radiator floor heating mixing device; the control unit respectively controls the heat source simulation unit, the heat exchange simulation unit, and the user simulation unit to work, and receives analysis and monitoring signals.
  • the single-tube series circulation device, the double-tube series cycle device, the household device, the floor heating device and the radiator floor heating mixing device are arranged in parallel on the heat supply pipeline of the heat exchange simulation unit.
  • the heat exchange simulation units are arranged indoors, and a plurality of temperature sensor measurement points are arranged indoors; and a plurality of temperature sensor measurement points are arranged outdoors, and the temperature sensor measurement points transmit monitoring information to the control unit.
  • the heat source simulation unit, the heat exchange simulation unit and the user simulation unit are all equipped with a flow meter at the end of the pipeline, and the flow meter transmits monitoring information to the control unit; pressure gauges are provided upstream and downstream of the balance valve.
  • the heat source simulation unit is also equipped with a high-level water tank and a softened water treatment unit, the softened water treatment unit is connected with the high-level water tank, and the high-level water tank is respectively connected with the solar heat collector and the gas water heater; the gas water heater is also connected with the gas system. ; Both the high water tank and the water tank of the softened water treatment unit are provided with a water level controller.
  • control unit also includes a display screen and an operation console, and the control unit adjusts the heating parameters and records the corresponding temperature changes.
  • a digital simulation method for a heating temperature curve using the above-mentioned digital simulation system for a heating temperature curve and hydraulic balance adjustment, the steps include:
  • A5. Determine the heating temperature curve according to the working parameters and temperature parameters.
  • the softened water in the heat source simulation unit is preheated by the solar heat collection device, and then heated to the set temperature by the gas water heater, and then enters the heat preservation water tank; the heat preservation water tank sends the hot water to the heat exchange simulation unit to adjust the temperature of the water supply. .
  • a digital simulation method for hydraulic balance adjustment using the above-mentioned digital simulation system for heating temperature curve and hydraulic balance adjustment, the steps include:
  • the softened water in the heat source simulation unit is preheated by the solar heat collection device, and then heated to the set temperature by the gas water heater, and then enters the heat preservation water tank; the heat preservation water tank sends the hot water to the heat exchange simulation unit to adjust the temperature of the water supply. .
  • the invention provides a digital simulation system and method for adjusting the heating temperature curve and hydraulic balance, which has the beneficial effects that the system can simulate the heating temperature operation in real scene, determine the heating temperature curve, and make corrections according to the outdoor temperature;
  • the system can also simulate the water supply temperature parameters under different occupancy rates, different outdoor temperatures, and different weather environments.
  • the actual heating parameters can be determined, providing a basis for the staff to adjust the heating parameters; the heating system also It has a high degree of visualization, the temperature of each heating area is balanced, and the unbalanced heat loss is reduced; a large amount of data can be obtained through multiple adjustments, and the heating parameters can be corrected by using the big data system; the use of solar heating settings reduces system operating costs
  • the system and method also have the advantages of visualization, digitization and standardization.
  • Fig. 1 is the schematic diagram of the digital simulation system of heating temperature curve and hydraulic balance adjustment
  • Fig. 2 is the indoor layout plan view of the digital simulation system
  • Fig. 3 is the piping arrangement diagram of the heat source simulation unit and the heat exchange simulation unit;
  • Fig. 4 is the piping layout of the simulated primary side water supply
  • Fig. 5 is the piping arrangement diagram of the simulated water supply tank
  • the specific implementation of the digital simulation system and method for adjusting the heating temperature curve and hydraulic balance provided by the present invention is as follows.
  • a digital simulation system for heating temperature curve and hydraulic balance adjustment comprising a heat source simulation unit 1 , a heat exchange simulation unit 2 , a user simulation unit 3 and a control unit 4 .
  • the simulation system introduces the unit operation data into the background data platform, collects outdoor temperature and weather conditions data for big data analysis, and realizes the test function of the system, so as to obtain the optimization of the heating operation curve data and the digitization of the hydraulic balance adjustment method. In the case of experience, energy saving and consumption reduction of heating are realized.
  • the heat source simulation unit 1 is used to provide a heat source, which includes a solar heat collector 15, a gas water heater 9 and a thermal insulation water tank 10.
  • the solar thermal collector and the gas water heater are arranged side by side.
  • the hot water pipes collect hot water and are stored in the thermal insulation water tank.
  • the heat preservation water tank is also connected to the primary side water supply pipe 17 and the primary side return water pipe 18 .
  • the heat exchange simulation unit realizes heat exchange and supplies heat to the user simulation unit. It includes a plate heat exchanger 11, a make-up pump and a circulation pump.
  • the make-up pump is connected to the pipeline downstream of the circulation pump.
  • the heat exchanger 11 is connected with the user simulation unit; the plate heat exchanger is also connected with the secondary side water supply 19 and the secondary side return water 20 respectively.
  • the user simulation unit 3 simulates the heating demand of an actual user, which includes a single-tube series circulation device, a double-tube series cycle device, a household device, a floor heating device 12 and a radiator floor heating mixing device.
  • the control unit 4 controls the work of each unit, records monitoring parameters and adjustment parameters, controls the work of the heat source simulation unit, the heat exchange simulation unit and the user simulation unit respectively, and receives analysis and monitoring signals.
  • the single-tube series circulation device, the double-tube series cycle device, the household device, the floor heating device and the radiator floor heating mixing device are arranged in parallel on the heat supply pipeline of the heat exchange simulation unit.
  • the single-pipe series circulation device simulates the heating mode of single-pipe series heating;
  • the double-pipe series circulation system simulates the double-pipe series circulation heating mode, the household system simulates the household heating mode, and the floor heating system simulates the floor heating heating mode.
  • the radiator floor heating hybrid device simulates the hybrid heating mode in which the radiator and floor heating are heated at the same time.
  • the heat exchange simulation units are all arranged indoors, and there are several measuring points of temperature sensors in the room. There are multiple temperature sensor measuring points outside, and the temperature sensor measuring points transmit monitoring information to the control unit. The average of each measuring point can be taken as the actual monitoring value to realize the monitoring of the measuring point arrangement area.
  • the heat source simulation unit, the heat exchange simulation unit and the user simulation unit are all equipped with a flow meter at the end of the pipeline, and the flow meter transmits the monitoring information to the control unit; pressure gauges are arranged upstream and downstream of the balance valve.
  • the heat source simulation unit is also equipped with a high-level water tank and a softened water treatment unit.
  • the softened water treatment unit is connected to the high-level water tank 16, and the high-level water tank is respectively connected to the solar heat collector and the gas water heater.
  • the gas water heater is also connected with the gas system; both the high water tank 16 and the water tank of the softened water treatment unit 13 are provided with water level controllers.
  • the control unit 4 also includes a display screen and an operation console, and the control unit adjusts the heating parameters and records the corresponding temperature.
  • the display screen and operating table, as well as the podium, seat, display cabinet and screen can be arranged indoors for easy observation; among them, various operating valves can be placed on the display cabinet, and the display cabinet can be placed on the seat once, which is convenient for explanation.
  • a digital simulation method for a heating temperature curve using the above-mentioned digital simulation system for a heating temperature curve and hydraulic balance adjustment, the steps include:
  • the temperature range of the primary side water supply temperature is 90 ⁇ 94°C; when the outdoor temperature is -6 ⁇ -1°C, the primary side water supply temperature range is 85 ⁇ 89°C; when When the outdoor temperature is 0 ⁇ 5°C, the temperature range of the primary side water supply temperature is 80 ⁇ 84°C; when the outdoor temperature is 6 ⁇ 11°C, the primary side water supply temperature range is 77 ⁇ 79°C; when the outdoor temperature is 12 ⁇ 16°C When the temperature is °C, the range of the primary side water supply temperature is 74 ⁇ 76°C.
  • A3. Adjust by time period and record the adjustment working parameters and indoor temperature parameters.
  • A5. Determine the heating temperature curve according to the working parameters and temperature parameters.
  • the softened water in the heat source simulation unit is preheated by the solar collector, then heated to the set temperature by the gas water heater, and then enters the heat preservation water tank.
  • the heat preservation water tank sends hot water to the heat exchange simulation unit to adjust the temperature of the water supply.
  • the solar heat collection device absorbs solar heat to supplement heat supply during the day, and at night the system water passes through the solar heat collection device to achieve antifreeze effect, realizing multi-energy complementary heat supply.
  • the electric regulating valve of the primary network is adjusted to meet the demand of the water supply temperature of the secondary network.
  • the curve supports the setting of outdoor temperature parameters of no less than eight points, and the temperature setting curve of the secondary network water supply can be adjusted according to the site conditions.
  • the temperature setting curve of the secondary network water supply can be shifted up or down according to the effective daily plan to meet the adjustment requirements of the secondary network water supply temperature in different time periods.
  • a digital simulation method for hydraulic balance adjustment using the above-mentioned digital simulation system for heating temperature curve and hydraulic balance adjustment, the steps include:
  • the softened water in the heat source simulation unit is preheated by the solar collector, then heated to the set temperature by the gas water heater, and then enters the heat preservation water tank.
  • the heat preservation water tank sends hot water to the heat exchange simulation unit to adjust the temperature of the water supply.
  • the solar heat collection device absorbs solar heat to supplement heat supply during the day, and at night the system water passes through the solar heat collection device to achieve antifreeze effect, realizing multi-energy complementary heat supply.
  • Hydraulic balance is to increase the resistance of the near pipe network to make it equal to the resistance of the far pipe network.
  • the way to increase the resistance is realized by the manual balance valve in the system, and whether to achieve hydraulic balance is realized by the flowmeters at each end of the system, and finally adjusted to the same weighted average of the flowmeters. During this process, the difference between the pressure gauges before and after the balance valve is the required increase in local resistance.
  • the beneficial effect of the digital simulation system and method is that the system can simulate the heating temperature operation in real scenes, determine the heating temperature curve, and make corrections according to the outdoor temperature; in addition, the system can also simulate different occupancy rates, different outdoor temperatures, different The temperature parameters of the water supply in the weather environment can be determined according to the simulation data, and the actual heating parameters can be determined, which provides a basis for the staff to adjust the heating parameters; the heating system also has a high degree of visualization, and the temperature of each heating area is balanced, reducing the inconvenience.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
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  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

一种供热温度曲线和水力平衡调节的数字化模拟系统及方法,该系统包括热源模拟单元、换热模拟单元和用户模拟单元,热源模拟单元包括太阳能集热装置、燃气热水器和保温水箱,换热模拟单元包括板式换热器、补水泵和循环泵,用户模拟单元包括单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置,热源模拟单元的保温水箱供水模拟一次网,并通过电动调节阀调整供水,换热模拟单元模拟二次网供水,根据室外温度调整二次侧和用户的供水温度,并通过室内温度传感器的反馈调节,确定供热曲线,通过手动平衡阀实现水力平衡调节。

Description

供热温度曲线和水力平衡调节的数字化模拟系统及方法 技术领域
本发明涉及供热测试模拟技术领域,尤其是一种供热温度曲线和水力平衡调节的数字化模拟系统及方法。
背景技术
近几年随着环保要求的提高,北方地区冬季清洁取暖逐步得到发展,面对综合能源供热这样的新事物、新业态,需要参与其中的工作人员尽快的、系统的掌握其运行原理、工艺流程,积累经验、互相分享、共同进步。所以在清洁能源供热上,为满足节能降耗同时保证供热效果,在实际供热运行中应用了供热运行曲线及闭式系统下各用户间的水力平衡调节。
目前,供热运行曲线的设定,都是经验值设定,没有经过试验和实际运行的检验,没有形成数据寻优的迭代,无法准确地在不同环境下达到相同供热效果,实际供热中依然会出现室外温度高或天气情况良好的时候室内供热温度反而高,室外温度低或天气情况差的时候室内供热温度反而低的情况;同时,对于供热系统的水力平衡,没有一个可模拟操作的平台,无法将水力平衡具体化、数据化,实际调节过程中缺乏可操作性、可复制性,依然出现中间用户开窗散热、边户顶楼用户温度不达标情况,为了改善这种不节能、供热体验差的问题,需要提供模拟系统对其进行模拟,从而更好的确定供热曲线,并调节水力平衡。
技术解决方案
为了解决供热系统参数调节的技术问题,通过实验对水力平衡进行标准化、数字化设定,最终实现供热的节能降耗、多热源互补供热,本发明提供了一种供热温度曲线和水力平衡调节的数字化模拟系统及方法,具体的技术方案如下。
一种供热温度曲线和水力平衡调节的数字化模拟系统,包括热源模拟单元、换热模拟单元、用户模拟单元和控制单元,所述热源模拟单元包括太阳能集热装置、燃气热水器和保温水箱,太阳能集热装置和燃气热水器并列布置,热水管汇集热水收纳在保温水箱内,保温水箱和换热模拟单元相连;所述换热模拟单元包括板式换热器、补水泵和循环泵,补水泵和循环泵下游的管道相连,板式换热器利用通过循环泵供水,板式换热器与用户模拟单元相连,所述用户模拟单元包括单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置;所述控制单元分别控制热源模拟单元、换热模拟单元、用户模拟单元工作,并接收分析监测信号。
优选的是,单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置并联布置在换热模拟单元的供热管路上。
优选的是,换热模拟单元均配置在室内,室内设置有多个温度传感器测点;室外设置有多个温度传感器测点,温度传感器测点将监测信息传输至控制单元。
优选的是,热源模拟单元、换热模拟单元和用户模拟单元中在管道末端均配置有流量计,流量计将监测信息传输至控制单元;在平衡阀的上游和下游均设置有压力表。
还优选的是,热源模拟单元还配置有高位水箱和软化水处理单元,软化水处理单元与高位水箱相连,高位水箱分别与太阳能集热装置和燃气热水器相连;所述燃气热水器还与燃气系统相连;高水水箱和软化水处理单元的水箱内均设置有水位控制器。
进一步优选的是,控制单元还包括显示屏和操作台,控制单元调节供热参数并记录相应的温度变化
一种供热温度曲线的数字化模拟方法,利用上述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
A1.确定二次网供热温度曲线;
A2.根据室外温度传感器的监测,调整热源模拟单元的电动调节阀,模拟二次网温度调节;
A3.分时段并调节,记录调节工作参数和室内温度参数;
A4.多次调节热源模拟单元和换热模拟单元的工作参数,记录室内温度参数;
A5.根据工作参数和温度参数确定供热温度曲线。
进一步优选的是,热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱;保温水箱将热水送至换热模拟单元,进行供水温度调节。
一种水力平衡调节的数字化模拟方法,利用上述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
B1.调整热源模拟单元和换热模拟单元中近端管网上的平衡阀;
B2.确定平衡阀上游和下游上分别设置的压力表读数;
B3.根据压力表读数,调节至管网远端的流量相同。
进一步优选的是,热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱;保温水箱将热水送至换热模拟单元,进行供水温度调节。
有益效果
本发明提供的一种供热温度曲线和水力平衡调节的数字化模拟系统及方法,其有益效果是,该系统能够实景模拟供热温度运行,确定供热温度曲线,并根据室外温度进行修正;另外该系统还可以模拟不同的入住率、不同室外温度、不同天气环境下的供水温度参数,根据模拟数据可以确定实际的供热参数,为工作人员调整供热参数提供了依据;该供热系统还具有可视化程度高,各个供热区域温度平衡,降低了不平衡的热损失;通过多次调节可以获得大量的数据,利用大数据系统可以修正供热参数;利用太阳能供热设置降低了系统运行成本;另外该系统及方法还具有可视化、数字化、标准化等优点。
附图说明
图1是供热温度曲线和水力平衡调节的数字化模拟系统的示意图;
图2是数字化模拟系统的室内布置片平面图;
图3是热源模拟单元和换热模拟单元的管路布置图;
图4是模拟一次侧供水的管路布置图
图5是模拟补水箱的管路布置图;
图中:1-热源模拟单元,2-换热模拟单元,3-用户模拟单元,4-控制单元 ,5-讲台,6-座椅,7-展示柜,8-屏幕,9-燃气热水器,10-保温水箱,11-板式换热器,12-地暖装置,13-软化水处理单元,14-补水泵;15-太阳能集热装置,16-高位水箱,17-一次侧供水管,18-一次侧回水管;19-二次侧供水,20-二次侧回水。
本发明的实施方式
结合图1至图5所示,对本发明提供的一种供热温度曲线和水力平衡调节的数字化模拟系统及方法的具体实施方式如下。
一种供热温度曲线和水力平衡调节的数字化模拟系统,包括热源模拟单元1、换热模拟单元2、用户模拟单元3和控制单元4。该模拟系统将机组运行数据引入后台数据平台,采集室外温度、天气状况数据进行大数据分析,实现系统的试验功能,以求得供热运行曲线数据优化、水力平衡调节方法数字化,在提高供热体验的情况下,实现供热节能降耗。
热源模拟单元1用于提供热源,其包括太阳能集热装置15、燃气热水器9和保温水箱10,太阳能集热装置和燃气热水器并列布置,热水管汇集热水收纳在保温水箱内,保温水箱10和换热模拟单元相连,保温水箱还与一次侧供水管17和一次侧回水管18相连。换热模拟单元实现换热并向用户模拟单元供热,其包括板式换热器11、补水泵和循环泵,补水泵和循环泵下游的管道相连,板式换热器利用通过循环泵供水,板式换热器11与用户模拟单元相连;板式换热器还分别与二次侧供水19和二次侧回水相连20。用户模拟单元3模拟实际用户的供热需求,其包括单管串联循环装置、双管串联循环装置、分户装置、地暖装置12和暖气片地暖混合装置。控制单元4控制各个单元的工作,并记录监测参数和调整参数,分别控制热源模拟单元、换热模拟单元、用户模拟单元工作,并接收分析监测信号。
单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置并联布置在换热模拟单元的供热管路上。其中单管串联循环装置模拟单管串联供热的供热方式;双管串联循环系统模拟双管串联的循环供热模式,分户系统模拟分户供热的模式,地暖系统模拟地暖供热的模式,暖气片地暖混合装置模拟暖气片和地暖同时供热的混合供热模式。换热模拟单元均配置在室内,室内设置有多个温度传感器的测点。室外设置有多个温度传感器的测点,温度传感器测点将监测信息传输至控制单元。各个测点可以取平均数作为实际的监测值,实现对测点布置区域的监测。
热源模拟单元、换热模拟单元和用户模拟单元中在管道末端均配置有流量计,流量计将监测信息传输至控制单元;在平衡阀的上游和下游均设置有压力表。热源模拟单元还配置有高位水箱和软化水处理单元,软化水处理单元与高位水箱16相连,高位水箱分别与太阳能集热装置和燃气热水器相连。燃气热水器还与燃气系统相连;高水水箱16和软化水处理单元13的水箱内均设置有水位控制器。
控制单元4还包括显示屏和操作台,控制单元调节供热参数并记录相应的温度。其中显示屏和操作台,以及讲台、座椅、展示柜和屏幕均可以布置在室内,方便观察;其中展示柜上可以放置各类操作阀,展示柜安放在座椅的一次,方便讲解。
一种供热温度曲线的数字化模拟方法,利用上述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
A1.确定二次网供热温度曲线。
A2.根据室外温度传感器的监测,调整热源模拟单元的电动调节阀,模拟二次网温度调节。其中当室外温度在-12~-7℃时,一次侧供水温度的区间为90~94℃;当室外温度在-6~-1℃时,一次侧供水温度的区间为85~89℃;当室外温度在0~5℃时,一次侧供水温度的区间为80~84℃;当室外温度在6~11℃时,一次侧供水温度的区间为77~79℃;当室外温度在12~16℃时,一次侧供水温度的区间为74~76℃。
A3.分时段并调节,记录调节工作参数和室内温度参数。
A4.多次调节热源模拟单元和换热模拟单元的工作参数,记录室内温度参数。
A5.根据工作参数和温度参数确定供热温度曲线。
热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱。保温水箱将热水送至换热模拟单元,进行供水温度调节。太阳能集热装置在白天吸取太阳能热量补充供热,夜间系统水经太阳能集热装置达到防冻效果,实现多能互补供热。
根据室外平均温度补偿所确定的二次网供水温度设定曲线,进行一次网电动调节阀的调节,从而满足二次网供水温度的需求。曲线支持不少于八点的室外温度参数设定,二次网供水温度设定曲线可以根据现场情况进行调整。二次网供水温度设定曲线能够根据日计划有效时向上或向下平移,以满足在不同时段对二次网供水温度的调节需求。室外设置温度检测传感器,将室外温度取至控制单元,根据预设供热运行曲线,进行二次侧及用户供水温度调整;室内设置室内温度传感器,将室内温度取至系统,方便查验实际供热温度超标或者过低情况。根据室内温度调整运行曲线的供水温度。进过反复模拟,确定实际供热曲线。
一种水力平衡调节的数字化模拟方法,利用上述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
B1.调整热源模拟单元和换热模拟单元中近端管网上的平衡阀;
B2.确定平衡阀上游和下游上分别设置的压力表读数;
B3.根据压力表读数,调节至管网远端的流量相同。
热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱。保温水箱将热水送至换热模拟单元,进行供水温度调节。太阳能集热装置在白天吸取太阳能热量补充供热,夜间系统水经太阳能集热装置达到防冻效果,实现多能互补供热。
在管道系统中,由于距离远近的不同,管网到达用户端的敷设长度就不同,因此就有了不同的阻力,近端相对于远端的阻力就小。水力平衡即通过给近端管网增加阻力,使之与远端管网阻力达到相同。增加阻力的方式通过系统内的手动平衡阀实现,而是否达到水力平衡,通过系统各个末端的流量计实现,最后调整至流量计的加权平均值相等。在此过程中,平衡阀前后压力表差值即为局部阻力所需增加值。
该数字化模拟系统及方法的有益效果是,该系统能够实景模拟供热温度运行,确定供热温度曲线,并根据室外温度进行修正;另外该系统还可以模拟不同的入住率、不同室外温度、不同天气环境下的供水温度参数,根据模拟数据可以确定实际的供热参数,为工作人员调整供热参数提供了依据;该供热系统还具有可视化程度高,各个供热区域温度平衡,降低了不平衡的热损失;通过多次调节可以获得大量的数据,利用大数据系统可以修正供热参数;利用太阳能供热设置降低了系统运行成本;另外该系统及方法还具有可视化、数字化、标准化等优点。
当然,上述说明并非是对本发明的限制,本发明也并不仅限于上述举例,本技术领域的技术人员在本发明的实质范围内所做出的变化、改型、添加或替换,也应属于本发明的保护范围。

Claims (10)

  1. 一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,包括热源模拟单元、换热模拟单元、用户模拟单元和控制单元,所述热源模拟单元包括太阳能集热装置、燃气热水器和保温水箱,太阳能集热装置和燃气热水器并列布置,热水管汇集热水收纳在保温水箱内,保温水箱和换热模拟单元相连;所述换热模拟单元包括板式换热器、补水泵和循环泵,补水泵和循环泵下游的管道相连,板式换热器利用通过循环泵供水,板式换热器与用户模拟单元相连,所述用户模拟单元包括单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置;所述控制单元分别控制热源模拟单元、换热模拟单元、用户模拟单元工作,并接收分析监测信号。
  2. 根据权利要求1所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,所述单管串联循环装置、双管串联循环装置、分户装置、地暖装置和暖气片地暖混合装置并联布置在换热模拟单元的供热管路上。
  3. 根据权利要求2所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,所述换热模拟单元均配置在室内,室内设置有多个温度传感器测点;室外设置有多个温度传感器测点,温度传感器测点将监测信息传输至控制单元。
  4. 根据权利要求1所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,所述热源模拟单元、换热模拟单元和用户模拟单元中在管道末端均配置有流量计,流量计将监测信息传输至控制单元;在平衡阀的上游和下游均设置有压力表。
  5. 根据权利要求1所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,所述热源模拟单元还配置有高位水箱和软化水处理单元,软化水处理单元与高位水箱相连,高位水箱分别与太阳能集热装置和燃气热水器相连;所述燃气热水器还与燃气系统相连;高水水箱和软化水处理单元的水箱内均设置有水位控制器。
  6. 根据权利要求1所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,其特征在于,所述控制单元还包括显示屏和操作台,控制单元调节供热参数并记录温度的变化。
  7. 一种供热温度曲线的数字化模拟方法,其特征在于,利用权利要求1至6任一项所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
    A1.确定二次网供热温度曲线;
    A2.根据室外温度传感器的监测,调整热源模拟单元的电动调节阀,模拟二次网温度调节;
    A3.分时段并调节,记录调节工作参数和室内温度参数;
    A4.多次调节热源模拟单元和换热模拟单元的工作参数,记录室内温度参数;
    A5.根据工作参数和温度参数确定供热温度曲线。
  8. 根据权利要求7所述的一种供热温度曲线的数字化模拟方法,其特征在于,所述热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱;保温水箱将热水送至换热模拟单元,进行供水温度调节。
  9. 一种水力平衡调节的数字化模拟方法,其特征在于,利用权利要求1至6任一项所述的一种供热温度曲线和水力平衡调节的数字化模拟系统,步骤包括:
    B1.调整热源模拟单元和换热模拟单元中近端管网上的平衡阀;
    B2.确定平衡阀上游和下游上分别设置的压力表读数;
    B3.根据压力表读数,调节至管网远端的流量相同。
  10. 根据权利要求9所述的一种水力平衡调节的数字化模拟方法,其特征在于,所述热源模拟单元中软化水经过太阳能集热装置预热后,再由燃气热水器加热至设定温度,进入保温水箱;保温水箱将热水送至换热模拟单元,进行供水温度调节。
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