CN103453620B - Air conditioning system and method based on energy efficiency evaluation and optimization of control - Google Patents

Air conditioning system and method based on energy efficiency evaluation and optimization of control Download PDF

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CN103453620B
CN103453620B CN201310360737.XA CN201310360737A CN103453620B CN 103453620 B CN103453620 B CN 103453620B CN 201310360737 A CN201310360737 A CN 201310360737A CN 103453620 B CN103453620 B CN 103453620B
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system
water
chilled water
air
coefficient
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CN103453620A (en
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任世琛
王小华
许丹丹
方飞龙
麻剑锋
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杭州展德软件技术有限公司
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Abstract

本发明涉及空调系统能效测评与控制领域,旨在提供一种基于能效测评与优化控制的空调系统及其方法。 The present invention relates to an air conditioning system energy efficiency evaluation and control field, it aims to provide an air conditioning system and a method based on energy efficiency evaluation and optimization control. 该系统的新风温度传感器、回风温度传感器、回风湿度传感器、送风流量传感器、供水温度传感器通过机柜的输入端连接至PLC,PLC通过输出端连接至空调机组风机的电机、电子式动态流量平衡阀、新风阀和回风阀。 Fresh air temperature sensor of the system, the return air temperature sensor, return air humidity sensor, an air supply flow rate sensor, the water temperature sensor is connected to the PLC via the input terminals of the cabinet, the PLC is connected to the air-conditioning unit blower via an output terminal of the motor, the electronic dynamic flow balancing valve, the new valve, and the return air valve. 本发明在冷冻水系统以及空调末端安装智慧阀门,将冷冻水供水温度、冷冻水供水压力、室外温度和末端开关信号作为输入输出点;将各信号和流量作为智慧阀门MODBUS的通讯点,根据测评方法计算出各个系统的能效系数,然后在控制装置中进行优化分析,改变智能控制数据,使得系统的能效大幅度提高,从而达到节能降耗的效果。 The present invention is mounted in the chilled water systems and air-conditioning terminal wisdom valve, the chilled water supply temperature, chilled water supply pressure, outdoor temperature and the end of the switching signal as an input and output points; each of the signals and the flow rate as a wisdom valve MODBUS communication point, according to the evaluation the method of calculating the coefficient of performance of each system, and to optimize the analysis in the control device, the intelligent control of changing data, so that the energy efficiency of the system greatly improved, so as to achieve energy saving.

Description

基于能效测评与优化控制的空调系统及其方法 Air conditioning system and method based on energy efficiency evaluation and optimization of control

技术领域 FIELD

[0001] 本发明涉及空调系统能效测评与控制领域。 [0001] The present invention relates to an air conditioning system energy efficiency evaluation and control. 更具体地说,本发明涉及基于能效测评与优化控制的空调系统及其方法。 More particularly, the present invention relates to an air conditioning system and a method based on energy efficiency evaluation and optimization control.

背景技术 Background technique

[0002] 中央空调是现代建筑的主要能耗部分。 [0002] Central air-conditioning energy consumption is a major part of modern architecture. 据统计,中央空调的用电量占各类大厦总用电量的70%以上,而中央空调设备97%的时间在70%负荷以下波动运行,实际空调负荷平均只有设备能力的50%左右,因而出现了"大马拉小车"的现象,造成巨大浪费。 According to statistics, more than 70% of the total central air conditioning electricity consumption accounts for all types of building, and central air-conditioning equipment 97% of the time at 70% load fluctuations runs below the actual air conditioning load on average only about 50% of the capacity of the device, so it had a "big horse car" phenomenon, causing a huge waste. 而且在空调运行期间,各个电机都长期固定在工频状态下全速运行,循环水的流量则是通过节流阀和旁通阀来调节,难以实现水流量与制冷量的实时匹配,造成水系统长期处于"大流量、小温差"的高能耗运行状态,并使制冷机组的COP下降。 And during air conditioning operation, each of the motors are run at full speed long-term fixed frequency state, the circulating water flow rate is adjusted through a throttle valve and the bypass valve, the water flow is difficult to achieve real-time to match the cooling capacity, resulting in water systems long-term "big flow, small temperature difference," the high-energy running state, and the COP of the refrigeration unit drops. 所以需要对传统的中央空调进行节能控制以降低能耗,提升能效系数。 Therefore, the need for traditional energy-saving control of central air conditioning to reduce energy consumption, improve energy efficiency coefficient. 在能源问题日益突出的今天,对空调领域的节能降耗有着重要的意义。 In energy issues have become increasingly prominent today, has important implications for the field of energy-saving air-conditioning.

发明内容 SUMMARY

[0003] 本发明要解决的技术问题是,克服现有技术中的不足,提供一种基于能效测评与优化控制的空调系统及其方法。 [0003] The present invention is to solve the technical problem, overcoming the disadvantages of the prior art, to provide an energy-efficient air-based system and method of evaluation and optimal control.

[0004] 为解决技术问题,本发明的解决方案是: [0004] To solve the technical problem, the solution of the invention is:

[0005] 提供一种基于能效测评与优化控制的空调系统,包括装有PLC、输入端和输出端的机柜,该装置还包括: [0005] provide an air conditioning system energy efficiency evaluation and optimization-based control, including with PLC, an input terminal and an output terminal of the cabinet, the apparatus further comprising:

[0006] 在新风管上装有新风温度传感器和新风阀;在回风管上装有回风温度传感器、回风湿度传感器和回风阀;在送风管上装有送风流量传感器;主风管中设过滤器、表冷/加热器和空调机组风机;表冷/加热器的供水管上装有供水温度传感器,回水管上装有电子式动态平衡流量调节阀;所述新风温度传感器、回风温度传感器、回风湿度传感器、送风流量传感器、供水温度传感器通过机柜的输入端连接至PLC,PLC通过输出端连接至空调机组风机的电机、电子式动态流量平衡阀、新风阀和回风阀; [0006] equipped in a new fresh air duct temperature sensor and the new air valve; on the back with a return duct air temperature sensor, a humidity sensor, and return air return damper; blowing with the air supply tube flow sensor; a main duct the set filter, cooler / heater and air conditioning unit fan; water temperature sensor with the water supply pipe cooler / heater, fitted with a flow regulating valve electronic homeostasis return pipe; the fresh air temperature sensor, a return air temperature sensor, return air humidity sensor, supply air flow rate sensor, the water temperature sensor is connected to the cabinet through the input terminal PLC, PLC unit is connected to the air conditioner fan motor, an electronic balancing dynamic flow via the output terminal, new damper valve, and back;

[0007] 在冷冻水供水管和冷冻水回水管之间安装N组风机盘管,风机盘管与冷冻水回水管之间设电动二通阀;在冷冻水回水管末端设智慧阀门;在冷冻水供水管上安装温度传感器和压力传感器,室外安装温度传感器,各温度传感器和压力传感器及风机盘管开关信号经电缆由机柜的输入端连接至PLC,PLC通过信号线经输出端和输入端一并与所述智慧阀门相连。 [0007] installed between the chilled water supply and chilled water return pipe fan coil group N, fan coil with chilled water back in the water between the electric valves; return pipe end valve disposed in the chilled water wisdom; in a freeze- mounted on the water supply pipe temperature sensor and a pressure sensor, an outdoor temperature sensor installation, each temperature sensor and pressure sensor and the fan coil switch signal from the input terminal is connected via a cable to the cabinet PLC, PLC via the signal line via an input terminal and an output terminal wisdom and connected to the valve.

[0008] 本发明中,所述机柜中还装有:继电器、电源、电源插座、变压器、空气断路开关、显示屏和通讯接口;其中,电源、电源插座、空气断路开关、变压器依次连接,变压器接至机柜内部的各设备以实现供电;PLC分别与通讯接口和显示屏相连。 [0008] In the present invention, the cabinet further provided with: a relay, power, power outlet, transformer, air circuit breakers, display and communication interfaces; wherein the sequentially connected, power, power outlet, the air circuit breaker, a transformer each device connected to the interior of the enclosure to achieve power; connected to the PLC communication interface and the display, respectively.

[0009] 本发明进一步提供了应用于前所述空调系统的能效测评方法,包括对冷水机组、 输配系统、末端系统和水动力系统的能效系数进行计算;具体为: [0009] The present invention further provides a method of evaluation of the energy efficiency of the air conditioning system is applied to the front, including the coefficient of performance chillers, transmission and distribution system, the end system and hydrodynamic systems are calculated; specifically:

[0010] (1)冷水机组的能效系数计算 [0010] (1) chiller energy efficiency coefficient calculation

[0011] 冷水机组的能效系数是指冷水机组的制冷量仏以及消耗的总功率N1比值,其计算公式如下: [0011] chiller energy efficiency factor is the amount of refrigeration chiller Fo N1 and the total power consumption ratio, which is calculated as follows:

Figure CN103453620BD00051

[0013] 式中:C0P_1 :冷水机组的能效系数;Q1:制冷量,冷水机组输出的制冷量,kw ;N1:冷水机组的总输入功率,kw ; P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg · K); GD:冷冻水流量,m 3/h ; △ TD:冷冻水供回水温差,K ; [0013] wherein: C0P_1: chiller coefficient of performance; Q1: cooling capacity, cooling capacity chiller output, kw; N1: total input power chillers, kw; P: frozen water density, kg / m3; CP : frozen water is specific heat at constant pressure, X / (kg · K); GD: chilled water flow, m 3 / h; △ TD: chilled water supply and return water temperature, K;

[0014] 其中Ν1=Νη+Ν12+Ν 13, N11为冷水机组消耗的电功率;N 12为冷冻水栗系统消耗的电功率,包括1次栗与2次栗以及变频器;N13为冷却水栗系统消耗的电功率,包括冷却水栗和冷却塔风机以及变频器; [0014] wherein Ν1 = Νη + Ν12 + Ν 13, electric power N11 is chillers consumed; N 12 into electrical power chilled water Li consumed by the system, comprising a secondary Li and the secondary Li and the inverter; N13 cooling water chestnut system electric power consumption, and includes a cooling water chestnut and cooling tower fan drive;

[0015] (2)输配系统的能效系数计算 [0015] The coefficient of performance (2) Calculation of Transmission and Distribution System

[0016] 在系统运行期间,由测量得到的冷冻水栗循环水系统输出的制冷量Q2与其消耗的总功率N2就可以得到输配系统的能效系数,其计算公式如下: [0016] During system operation, the total power measured by the N2 cooling capacity of the circulating water system chilled water chestnut its output Q2 consumption coefficient of performance can be obtained in the transmission and distribution system, which is calculated as follows:

Figure CN103453620BD00052

[0018] 式中:C0P_2 :输配系统的能效系数;Q2:冷冻水栗循环水系统输出的制冷量,kw ; N2:冷冻水栗循环水系统消耗的总功率,kw;P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,JAkg · K) ;GD:冷冻水流量,m 3/h ; Δ TD:冷冻水供回水温差,K ; [0018] wherein: C0P_2: coefficient of performance distribution system; Q2: cooling capacity chilled water chestnut circulating water system output, kw; N2: total power chilled water chestnut circulating water system consumption, kw; P: Chilled water density , kg / m3; CP: frozen water specific heat capacity, JAkg · K); GD: chilled water flow, m 3 / h; Δ TD: chilled water supply and return water temperature, K;

[0019] (3)末端系统的能效系数计算 Coefficient of performance [0019] (3) end of the system is calculated

[0020] 在系统运行期间,通过测量末端设备消化的制冷量%与消耗的功率N3,就可以计算出末端系统的能效系数,其计算公式如下: [0020] During system operation, the amount of cooling power N3 digested by measuring the consumption of terminal equipment%, we can calculate the energy efficiency coefficients end of the system, which is calculated as follows:

Figure CN103453620BD00053

[0022] 式中:C0P_3 :末端系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N3:末端系统设备消耗的总功率,kw,P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg · K); GD:冷冻水流量,m 3/h ;△ Td:冷冻水供回水温差,K ; [0022] wherein: C0P_3: coefficient of performance end of the system; Q3: refrigeration terminal system equipment digestion, kw; N3: total power end of the system consumed by the device, kw, P: chilled water density, kg / m3; CP: specific heat capacity of the chilled water, X / (kg · K); GD: chilled water flow, m 3 / h; △ Td: chilled water supply and return water temperature, K;

[0023] 其中:Ν3=ΣΝ3-1; [0023] wherein: Ν3 = ΣΝ3-1;

[0024] N3-J-N3i-Qdp+N3i-FAN; [0024] N3-J-N3i-Qdp + N3i-FAN;

[0025] N31 水动力=水流量X (末端水压差+阀门水压差); [0025] N31 hydrodynamic water flow = X (end of the valve water pressure + water pressure difference);

[0026] N3ifan:风动力=风机输入功率; [0026] N3ifan: wind turbine power = input power;

[0027] i是指第i个末端设备; [0027] i refers to the i-th terminal devices;

[0028] (4)水动力系统的能效系数计算 Coefficient of performance [0028] (4) Calculation of hydrodynamic system

[0029] 在系统运行期间,通过测量出来的循环水的体积流量及扬程得到水动力系统的能效系数,其计算公式如下: [0029] During system operation, power system to obtain a water volume flow measured by the circulating water and the lift coefficient of performance, which is calculated as follows:

Figure CN103453620BD00054

[0031] 式中:C0P_3W :水动力系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N' 3:管网消耗的功率,kw ; P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg ·Κ) ;GD:冷冻水流量,m3/h ; Δ TD:冷冻水供回水温差,K ;Q :循环水的体积流量,m 3/h ; Δ P :循环水的扬程, m ; [0031] wherein: C0P_3W: coefficient of performance hydrodynamic system; Q3: refrigeration terminal system equipment digestion, kw; N '3: network power consumed, kw; P: frozen water density, kg / m3; CP : specific heat capacity of the chilled water, X / (kg · Κ); GD: chilled water flow, m3 / h; Δ TD: chilled water supply and return water temperature, K; Q: the volume flow rate of the circulating water, m 3 / h ; Δ P: circulating water head, m;

[0032] (5)整个系统的能效系数计算 [0032] (5) the overall system energy efficiency coefficient calculation

[0033] 由末端设备消化的制冷量,以及冷水机组、末端设备消耗的功率,计算出整个系统的能效系数,其计算公式如下: [0033] The cooling capacity digested by the terminal equipment, chillers and power, consumed by the terminal equipment, to calculate the coefficient of performance of the entire system, which is calculated as follows:

Figure CN103453620BD00061

[0035] 式中:C0P_S :整个系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N 1:冷水机组的总输入功率,kw ;N3:末端系统设备消耗的总功率,kw ; [0035] wherein: C0P_S: coefficient of performance of the entire system; Q3: refrigeration terminal system equipment digestion, kw; N 1: the total input power chillers, kw; N3: total power end of the system consumed by the device, kw;

[0036] (6)用户通过计算获得整个空调系统及各子系统的能效系数,以此获得对空调系统运行能效的评测结果。 [0036] (6) the user access to the entire air-conditioning system by calculating the coefficient of performance and various subsystems in order to obtain the evaluation results of the air conditioning system energy efficiency.

[0037] 通过测量系统运行参数,应用以上方法就可以得到整个空调系统及子系统的能效系数,使用户能更清楚的了解系统的运行情况。 [0037] By measuring operating parameters of the system, the above method can be applied to obtain coefficient of performance of the entire air conditioning systems and subsystems, so that users can more clearly understand the operation of the system.

[0038] 与现有技术相比,本发明的有益效果在于: [0038] Compared with the prior art, the beneficial effects of the present invention:

[0039] 本发明的控制方法为在冷冻水系统以及空调末端安装智慧阀门,同时在水系统中安装温度传感器,室外也需安装温度传感器,将冷冻水供水温度、冷冻水供水压力、室外温度和末端开关信号作为输入输出点;将冷冻水回水温度、阀前压力、阀后压力、压差、执行器开度、输入开度控制信号和流量作为智慧阀门MODBUS的通讯点,根据测评方法计算出各个系统的能效系数,然后在控制装置中进行优化分析,改变水栗的频率,风机的转速以及阀门的开度等智能控制,使得系统的能效大幅度提高,从而达到节能降耗的效果。 [0039] The control method of the present invention is installed in the chilled water systems and air-conditioning terminal wisdom valve while mounting the temperature sensor in the water system, the outdoor also need to install a temperature sensor, the chilled water supply temperature, chilled water supply pressure, outdoor temperature and switch signal input terminal as an output point; after chilled water return temperature, before the pressure valve, the pressure valve, the differential pressure, the opening degree of the actuator, and a control signal input flow opening of the valve as MODBUS communications intelligence point, calculated according to the evaluation method the coefficient of performance of each system, and to optimize the analysis in the control device, change the frequency of water chestnut, fan speed and valve opening intelligent control, so that the system energy efficiency greatly improved, so as to achieve energy saving.

附图说明 BRIEF DESCRIPTION

[0040] 图1是本发明中空调系统的机柜结构示意图; [0040] FIG. 1 is a schematic diagram of the air conditioning system cabinet structure according to the present invention;

[0041] 图2是空调机组实施控制结构示意图; [0041] FIG. 2 is a schematic embodiment of a control structure of air conditioning unit;

[0042] 图3是冷冻水供回水管示意图。 [0042] FIG. 3 is a schematic view of chilled water supply and return pipe.

[0043] 图1中:1PLC,2显示屏,3继电器,4电源,5电源插座,6变压器,7空气断路开关, 8通讯接口,9输出端,10输入端; [0043] FIG. 1: 1PLC, 2 screen, the relay 3, the power supply 4, outlet 5, the transformer 6, the air circuit breaker 7, communication interface 8, 9 an output terminal, 10 an input terminal;

[0044] 图2中:11回风温度传感器,12回风湿度传感器,13混合段,14过滤段,15表冷段, 16加热段,17加湿段,18风机,19送风流量传感器,20加湿控制,21供水温度传感器,22智电子式动态平衡流量调节阀,23报警器,24新风温度传感器,25新风管,26新风阀,27回风管,28回风阀,29送风管,300过滤器,301表冷/加热器,302空调机组风机; In [0044] FIG. 2: 11 return air temperature sensor, return air humidity sensor 12, the mixing section 13, filter section 14, 15 coolers section, heating section 16, humidification section 17, the fan 18, air supply flow sensor 19, 20 humidification control, the water temperature sensor 21, 22 Chi electronic homeostasis flow regulating valve, alarm 23, temperature sensor 24 fresh air, fresh air duct 25, the new air valve 26, return duct 27, return damper 28, the blower duct 29 , 300 filter 301 cooler / heater, air conditioning unit fan 302;

[0045] 图3中:31智慧阀门,32温度传感器,33电动二通阀,34风机盘管。 [0045] FIG. 3: wisdom valve 31, temperature sensor 32, an electric two-way valve 33, fan coil 34.

具体实施方式 Detailed ways

[0046] 参照附图,对本发明进行详细说明。 [0046] Referring to the drawings, the present invention will be described in detail.

[0047] 如图2、3所示,基于能效测评与优化控制的空调系统,包括机柜,机柜中装有PLCl (可编程逻辑控制器)、显示屏2、继电器3、电源4、电源插座5、变压器6、空气断路开关7、通讯接口8、输出端9和输入端10 ;其中,电源4、电源插座5、空气断路开关7、变压器6依次连接,变压器6接至机柜内部的各设备以实现供电;PLCl分别与通讯接口8和显示屏2相连。 [0047] 2 and 3, the air conditioning system energy efficiency evaluation and optimization-based control, including the cabinet, the cabinet containing PLCL (programmable logic controller), display 2, the relay 3, power source 4, outlet 5 , the transformer 6, the air circuit breaker 7, communication interface 8, an output terminal 9 and the input terminal 10; wherein the power supply 4, outlet 5, the air circuit breaker 7, the transformer 6 are connected in sequence, each device connected to the interior of the enclosure of the transformer 6 achieve power; PLCL 8 are connected with the communication interface and the display 2.

[0048] 该装置还包括空调机组实施控制结构以及冷冻水供回水管: [0048] The apparatus further includes a control structure and the air conditioning unit embodiment chilled water supply and return pipe:

[0049] 在新风管25上装有新风温度传感器24和新风阀26 ;在回风管27上装有回风温度传感器11、回风湿度传感器12和回风阀28 ;在送风管29上装有送风流量传感器19 ;主风管中设过滤器300、表冷/加热器301和空调机组风机302 ;表冷/加热器301的供水管上装有供水温度传感器21,回水管上装有电子式动态平衡流量调节阀22 ;所述新风温度传感器24、回风温度传感器11、回风湿度传感器12、送风流量传感器19、供水温度传感器21通过机柜的输入端连接至PLC1,PLCl通过输出端连接至空调机组风机302的电机、电子式动态流量平衡阀22、新风阀26和回风阀28。 [0049] In the new fresh air duct with a temperature sensor 24 and 26 on the new air valve 25; the return duct 11 with the return air temperature sensor 27, humidity sensor 12 and the return air return damper 28; 29 fitted on the blowpipe blowing a flow sensor 19; the filter is provided in the main air duct 300, cooler / heater 301 and the fan 302 air conditioning unit; water temperature sensor 21 is equipped on the water supply pipe cooler / heater 301, equipped with electronic dynamic return pipe balance flow regulating valve 22; the fresh air temperature sensor 24, return air temperature sensor 11, return air humidity sensor 12, air flow sensor 19, water temperature sensor 21 is connected to the cabinet through an input terminal PLC1, through an output terminal connected to the PLCL air conditioning unit fan motor 302, the electronic dynamic flow balance valve 22, the new air valve 26 and return air valve 28.

[0050] 在冷冻水供水管和冷冻水回水管之间安装N组风机盘管,风机盘管与冷冻水回水管之间设电动二通阀33 ;在冷冻水回水管末端设智慧阀门31 ;在冷冻水供水管上安装温度传感器32和压力传感器Pl、P2、P3,室外安装温度传感器,各温度传感器和压力传感器及风机盘管开关信号经电缆由机柜的输入端连接至PLC1,PLCl通过信号线经输出端9和输入端10 -并与所述智慧阀门31相连。 [0050] In the chilled water supply and chilled water return pipe mounted between the N sets of fan coil, fan coil with chilled water back to the two-way valve 33 is provided between the electric water; end of the return pipe 31 provided in the chilled water valves wisdom; mounting the temperature sensor 32 and a pressure sensor Pl on the chilled water supply pipe, P2, P3, the outdoor temperature sensor is mounted, the temperature sensors and pressure sensors and fan coil switch signal from the input terminal is connected via a cable to the cabinet PLC1, PLCl by a signal line via the input terminal and the output terminal 9 10 - wisdom and connected to the valve 31.

[0051] 所述电子式动态平衡流量调节阀22、智慧阀门31均为集嵌入式软件、传感技术、 智能控制器、调节阀与执行机构为一体的装置。 [0051] The electronic homeostasis flow regulating valve 22, valve 31 are set intelligence embedded software, sensing technology, the intelligent controller, and the actuator control valve as one of the means. 通过它们可以调节冷冻水的流量,同时机组的运行情况由PLCl内嵌的分散控制系统进行控制,根据负荷变化来相应的改变机组频率以及开启台数,将机组运行能效作为优化目标值,通过优化控制,使得机组的能效最佳。 May be adjusted by their chilled water flow, while the operation unit is controlled by a distributed control system PLCl embedded, according to a load change in a corresponding change in the unit frequency and turning the number, the unit operation energy efficiency as the optimization target value by optimizing the control , so that the best energy efficiency of the unit. 电子式动态平衡流量调节阀22、智慧阀门31智慧阀门均已有成熟产品,例如杭州哲达科技股份有限公司生产的ZIPC46系列的电子式动态平衡流量调节阀、ZIPC46-EM能量感知型智能调节阀。 Electronic homeostasis flow control valve 22, the valve 31 Wisdom Wisdom valves have a mature product, such as Hangzhou Zhe Da Technology Co., Ltd. production ZIPC46 series of electronic dynamic equilibrium flow control valve, ZIPC46-EM energy-aware intelligent control valve . 因其具体技术内容不是本实用新型的重点,故不再赘述。 Its specific technical content is not the focus of this new practical, it will not be repeated.

[0052] 本发明中,应用于空调系统的能效测评方法,包括对冷水机组、输配系统、末端系统和水动力系统的能效系数进行计算;具体为: [0052] In the present invention, it applied to an air conditioning system energy efficiency evaluation method comprising chiller energy efficiency coefficient, transmission and distribution system, the end system and hydrodynamic systems are calculated; specifically:

[0053] ( 1)冷水机组的能效系数计算 [0053] (1) chiller energy efficiency coefficient calculation

[0054] 冷水机组的能效系数是指冷水机组的制冷量仏以及消耗的总功率N1比值,其计算公式如下: [0054] chiller energy efficiency factor is the amount of refrigeration chiller Fo N1 and the total power consumption ratio, which is calculated as follows:

Figure CN103453620BD00071

[0056] 式中:C0P_1 :冷水机组的能效系数;Q1:制冷量,冷水机组输出的制冷量,kw ;N 1:冷水机组的总输入功率,kw ; P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg · K); GD:冷冻水流量,m 3/h ;△ Td:冷冻水供回水温差,K ; [0056] wherein: C0P_1: chiller coefficient of performance; Q1: cooling capacity, cooling capacity chiller output, kw; N 1: the total input power chillers, kw; P: frozen water density, kg / m3; CP: frozen water is specific heat at constant pressure, X / (kg · K); GD: chilled water flow, m 3 / h; △ Td: chilled water supply and return water temperature, K;

[0057] 其中N1=Nn+N12+N 13, N11为冷水机组消耗的电功率;N 12为冷冻水栗系统消耗的电功率,包括1次栗与2次栗以及变频器;N13为冷却水栗系统消耗的电功率,包括冷却水栗和冷却塔风机以及变频器; [0057] where N1 = Nn + N12 + N 13, electric power N11 is chillers consumed; N 12 into electrical power chilled water Li consumed by the system, comprising a secondary Li and the secondary Li and the inverter; N13 cooling water chestnut system electric power consumption, and includes a cooling water chestnut and cooling tower fan drive;

[0058] (2)输配系统的能效系数计算 [0058] The coefficient of performance (2) Calculation of Transmission and Distribution System

[0059] 在系统运行期间,由测量得到的冷冻水栗循环水系统输出的制冷量Q2与其消耗的总功率N2就可以得到输配系统的能效系数,其计算公式如下: CN 103453620 B ^ ΗΠ Τ> 5/5 贞 [0059] During system operation, the total power N2 cooling capacity by the measured chilled water chestnut circulating water system output Q2 with its consumption can be obtained coefficient of performance distribution system, which is calculated as follows: CN 103453620 B ^ ΗΠ Τ > 5/5 Zhen

Figure CN103453620BD00081

[0061] 式中:C0P_2 :输配系统的能效系数;Q2:冷冻水栗循环水系统输出的制冷量,kw ; N2:冷冻水栗循环水系统消耗的总功率,kw;P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,JAkg · K) ;GD:冷冻水流量,m 3/h ; Δ TD:冷冻水供回水温差,K ; [0061] wherein: C0P_2: coefficient of performance distribution system; Q2: cooling capacity chilled water chestnut circulating water system output, kw; N2: total power chilled water chestnut circulating water system consumption, kw; P: Chilled water density , kg / m3; CP: frozen water specific heat capacity, JAkg · K); GD: chilled water flow, m 3 / h; Δ TD: chilled water supply and return water temperature, K;

[0062] (3)末端系统的能效系数计算 Coefficient of performance [0062] (3) end of the system is calculated

[0063] 在系统运行期间,通过测量末端设备消化的制冷量Q3与消耗的功率N3,就可以计算出末端系统的能效系数,其计算公式如下: [0063] During system operation, the terminal device by measuring the power consumed N3 cooling capacity Q3 digested, can calculate the end of the system coefficient of performance, which is calculated as follows:

Figure CN103453620BD00082

[0065] 式中:C0P_3 :末端系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N3:末端系统设备消耗的总功率,kw,P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg · K); GD:冷冻水流量,m 3/h ;△ Td:冷冻水供回水温差,K ; [0065] wherein: C0P_3: coefficient of performance end of the system; Q3: refrigeration terminal system equipment digestion, kw; N3: total power end of the system consumed by the device, kw, P: chilled water density, kg / m3; CP: specific heat capacity of the chilled water, X / (kg · K); GD: chilled water flow, m 3 / h; △ Td: chilled water supply and return water temperature, K;

[0066] 其中:Ν3=ΣΝ3-1; [0066] wherein: Ν3 = ΣΝ3-1;

[0067] N3-「N3i-QdP+N3i-FAN; [0067] N3- "N3i-QdP + N3i-FAN;

[0068] N31 水动力=水流量X (末端水压差+阀门水压差); [0068] N31 hydrodynamic water flow = X (end of the valve water pressure + water pressure difference);

[0069] N3ifan:风动力=风机输入功率; [0069] N3ifan: wind turbine power = input power;

[0070] i是指第i个末端设备; [0070] i refers to the i-th terminal devices;

[0071] (4)水动力系统的能效系数计算 Coefficient of performance [0071] (4) Calculation of hydrodynamic system

[0072] 在系统运行期间,通过测量出来的循环水的体积流量及扬程得到水动力系统的能效系数,其计算公式如下: [0072] During system operation, power system to obtain a water volume flow measured by the circulating water and the lift coefficient of performance, which is calculated as follows:

Figure CN103453620BD00083

[0074] 式中:C0P_3W :水动力系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N' 3:管网消耗的功率,kw ; P :冷冻水密度,kg/m3;CP:冷冻水的定压比热容,X/(kg ·Κ) ;GD:冷冻水流量,m3/h ; Δ TD:冷冻水供回水温差,K ;Q :循环水的体积流量,m 3/h ; Δ P :循环水的扬程, m ; [0074] wherein: C0P_3W: coefficient of performance hydrodynamic system; Q3: refrigeration terminal system equipment digestion, kw; N '3: network power consumed, kw; P: frozen water density, kg / m3; CP : specific heat capacity of the chilled water, X / (kg · Κ); GD: chilled water flow, m3 / h; Δ TD: chilled water supply and return water temperature, K; Q: the volume flow rate of the circulating water, m 3 / h ; Δ P: circulating water head, m;

[0075] (5)整个系统的能效系数计算 [0075] (5) the overall system energy efficiency coefficient calculation

[0076] 由末端设备消化的制冷量,以及冷水机组、末端设备消耗的功率,计算出整个系统的能效系数,其计算公式如下: [0076] The cooling capacity digested by the terminal equipment, chillers and power, consumed by the terminal equipment, to calculate the coefficient of performance of the entire system, which is calculated as follows:

Figure CN103453620BD00084

[0078] 式中:C0P_S :整个系统的能效系数;Q3:末端系统设备消化的制冷量,kw ;N 1:冷水机组的总输入功率,kw ;N3:末端系统设备消耗的总功率,kw ; [0078] wherein: C0P_S: coefficient of performance of the entire system; Q3: refrigeration terminal system equipment digestion, kw; N 1: the total input power chillers, kw; N3: total power end of the system consumed by the device, kw;

[0079] (6)用户通过计算获得整个空调系统及各子系统的能效系数,以此获得对空调系统运行能效的评测结果,使用户能更清楚的了解系统的运行情况。 [0079] (6) the user access to the entire air-conditioning system by calculating the coefficient of performance and each subsystem, the evaluation results obtained in this air conditioning system for energy efficiency, so that users can more clearly understand the operation of the system.

Claims (2)

1. 基于能效测评与优化控制的空调系统,包括装有PLC、输入端和输出端的机柜,其特征在于,该系统还包括: 在新风管上装有新风温度传感器和新风阀;在回风管上装有回风温度传感器、回风湿度传感器和回风阀;在送风管上装有送风流量传感器;主风管中设过滤器、表冷/加热器和空调机组风机;表冷/加热器的供水管上装有供水温度传感器,回水管上装有电子式动态平衡流量调节阀;所述新风温度传感器、回风温度传感器、回风湿度传感器、送风流量传感器、供水温度传感器通过机柜的输入端连接至PLC,PLC通过输出端连接至空调机组风机的电机、电子式动态平衡流量调节阀、新风阀和回风阀; 在冷冻水供水管和冷冻水回水管之间安装N组风机盘管,风机盘管与冷冻水回水管之间设电动二通阀;在冷冻水回水管末端设智慧阀门;在冷冻水供水管上 1. Based on the energy efficiency of the air conditioning system evaluation and optimization of control, including with PLC, an input terminal and an output terminal of the cabinet, characterized in that the system further comprises: containing the new air temperature sensor and the new air valve in the fresh air duct; in the return duct on which a return air temperature sensor, a humidity sensor, and return air return damper; blowing with the air supply tube flow sensor; a main duct is provided in a filter, cooler / heater and air conditioning unit blower; cooler / heater the water supply pipe fitted with a temperature sensor, with a flow regulating valve electronic homeostasis return pipe; the fresh air temperature sensor, a return air temperature sensor, a humidity sensor return air, supply air flow sensor, a water temperature sensor through an input terminal enclosure is connected to the PLC, PLC unit is connected to the air conditioner fan motor through an output terminal, an electronic flow control valve homeostasis, new damper valve, and back; N group mounted fan coil pipe between the chilled water supply and chilled water return pipe, fan coil with chilled water back in the water between the electric valves; return pipe end valve disposed in the chilled water wisdom; on the chilled water supply pipe 装温度传感器和压力传感器,室外安装温度传感器,各温度传感器和压力传感器及风机盘管开关信号经电缆由机柜的输入端连接至PLC,PLC通过信号线经输出端和输入端一并与所述智慧阀门相连; 所述机柜中还装有:继电器、电源、电源插座、变压器、空气断路开关、显示屏和通讯接口;其中,电源、电源插座、空气断路开关、变压器依次连接,变压器接至机柜内部的各设备以实现供电;PLC分别与通讯接口和显示屏相连。 Means the temperature and pressure sensors, an outdoor temperature sensor installation, each temperature sensor and pressure sensor and the fan coil switch signal from the input terminal is connected via a cable to the cabinet PLC, PLC collectively via the signal line via the output terminal and the input terminal wise connected to the valve; said cabinet further containing: relays, power, power outlet, transformer, air circuit breakers, display and communication interfaces; wherein the power supply, power outlet, the air circuit breaker, in turn connected to the transformer, the transformer connected to the enclosure each of the power devices internal to achieve; connected to the PLC communication interface and the display, respectively.
2. -种应用于权利要求1所述空调系统的能效测评方法,其特征在于,包括对冷水机组、输配系统、末端系统和水动力系统的能效系数进行计算;具体为: (1) 冷水机组的能效系数计算冷水机组的能效系数是指冷水机组的制冷量Q1以及消耗的总功率N1比值,其计算公式如下: 2. - the energy efficiency evaluation method applied to a kind of air conditioning system as claimed in claim, characterized in that the coefficient of performance including chillers, transmission and distribution system, the end system and hydrodynamic systems are calculated; specifically: (1) cold water energy efficiency coefficient calculation unit chiller energy efficiency factor is the cooling capacity of the chiller N1 Q1 and the ratio of total power consumption, which is calculated as follows:
Figure CN103453620BC00021
式中:C0P_1 :冷水机组的能效系数;Q1:制冷量,冷水机组输出的制冷量,kw;N1:冷水机组的总输入功率,kw;P:冷冻水密度,kg/m3;CP:冷冻水的定压比热容,JAkg•K);GD:冷冻水流量,m3/h;ATD:冷冻水供回水温差,K; 其中N1 =Nn+N12+N13,N11为冷水机组消耗的电功率;N12为冷冻水栗系统消耗的电功率, 包括1次栗与2次栗以及变频器;N13为冷却水栗系统消耗的电功率,包括冷却水栗和冷却塔风机以及变频器; (2) 输配系统的能效系数计算在系统运行期间,由测量得到的冷冻水栗循环水系统输出的制冷量92与其消耗的总功率N2就可以得到输配系统的能效系数,其计算公式如下: Wherein: C0P_1: chiller coefficient of performance; Q1: cooling capacity, cooling capacity chiller output, kw; N1: total input power chillers, kw; P: frozen water density, kg / m3; CP: Chilled water the specific heat capacity, JAkg • K); GD: chilled water flow, m3 / h; ATD: chilled water supply and return water temperature, K; where N1 = Nn + N12 + N13, the electric power N11 is chillers consumed; N12 is power chilled water Li consumed by the system, comprising a secondary Li and the secondary Li and the inverter; power N13 consumption of cooling water chestnut system comprises a cooling water chestnut and cooling tower fan and inverter; energy efficiency (2) Transmission and distribution system coefficient calculation during system operation, the total power measured by the N2 cooling capacity chilled water chestnut circulating water system 92 outputs its consumption can be obtained coefficient of performance of the distribution system, which is calculated as follows:
Figure CN103453620BC00022
式中:C0P_2 :输配系统的能效系数;Q2:冷冻水栗循环水系统输出的制冷量,kw;N2:冷冻水栗循环水系统消耗的总功率,kw;P:冷冻水密度,kg/m3;CP:冷冻水的定压比热容,J/ (kg•K) ;Gd:冷冻水流量,m3/h;ATd:冷冻水供回水温差,K; (3) 末端系统的能效系数计算在系统运行期间,通过测量末端设备消耗的制冷量Q3与消耗的功率N3,就可以计算出末端系统的能效系数,其计算公式如下: Wherein: C0P_2: coefficient of performance distribution system; Q2: cooling capacity chilled water chestnut circulating water system output, kw; N2: total power chilled water chestnut circulating water system consumption, kw; P: frozen water density, kg / m3; CP: frozen water specific heat capacity, J / (kg • K); Gd: chilled water flow, m3 / h; ATd: chilled water supply and return water temperature, K; coefficient of performance (3) end of the system calculates the during system operation, power consumed N3 Q3 cooling capacity by measuring the consumption of terminal equipment, it is possible to calculate the coefficient of performance end of the system, which is calculated as follows:
Figure CN103453620BC00031
式中:C0P_3 :末端系统的能效系数;Q3:末端系统设备消耗的制冷量,kw;N3:末端系统设备消耗的总功率,kw,P:冷冻水密度,kg/m3;CP:冷冻水的定压比热容,JAkg•K);GD:冷冻水流量,m3/h;ATD:冷冻水供回水温差,K; 其中:N3= 2 N31; N3-i - N 3i_QdP+N3i_FAN; N3l_QdP:水动力=水流量X(末端水压差+阀门水压差); N3ifan:风动力=风机输入功率; i是指第i个末端设备; (4) 水动力系统的能效系数计算在系统运行期间,通过测量出来的循环水的体积流量及扬程得到水动力系统的能效系数,其计算公式如下: Wherein: C0P_3: end of the system coefficient of performance; Q3: refrigeration end of the system consumed by the device, kw; N3: total power end of the system consumed by the device, kw, P: chilled water density, kg / m3; CP: frozen water specific heat capacity, JAkg • K); GD: chilled water flow, m3 / h; ATD: chilled water supply and return water temperature, K; where: N3 = 2 N31; N3-i - N 3i_QdP + N3i_FAN; N3l_QdP: hydrodynamic water flow = X (end of the valve water pressure + water pressure); N3ifan: wind turbine power = input power; i refers to the i-th terminal device; (4) coefficient of performance calculated hydrodynamic system during system operation, by measuring the volume flow and head out of the circulating water system to give hydrodynamic energy efficiency coefficient, which is calculated as follows:
Figure CN103453620BC00032
式中:C0P_3W:水动力系统的能效系数;Q3:末端系统设备消耗的制冷量,kw;N'3:管网消耗的功率,kw,P:冷冻水密度,kg/m3;CP:冷冻水的定压比热容,JAkg•K);GD:冷冻水流量,m3/h;ATD:冷冻水供回水温差,K ;Q:循环水的体积流量,m 3/h;AP:循环水的扬程,m ; (5) 整个系统的能效系数计算由末端设备消耗的制冷量,以及冷水机组、末端设备消耗的功率,计算出整个系统的能效系数,其计算公式如下: Wherein: C0P_3W: coefficient of performance of the hydrodynamic system; Q3: refrigeration system terminal devices consume, kw; N'3: network power consumption, kw, P: chilled water density, kg / m3; CP: Chilled water the specific heat capacity, JAkg • K); GD: chilled water flow, m3 / h; ATD: chilled water supply and return water temperature, K; Q: the volume flow rate of the circulating water, m 3 / h; AP: circulating water head , m; (5) the overall system energy efficiency coefficient calculation amount consumed by the end of the cooling device, and a power chillers, terminal equipment consumes, the energy efficiency coefficient is calculated of the whole system, is calculated as follows:
Figure CN103453620BC00033
式中:COP_S:整个系统的能效系数;Q3:末端系统设备消耗的制冷量,kw;N1:冷水机组的总输入功率,kw ;N3:末端系统设备消耗的总功率,kw ; (6) 用户通过计算获得整个空调系统及各子系统的能效系数,以此获得对空调系统运行能效的评测结果。 Wherein: COP_S: coefficient of performance of the entire system; Q3: refrigeration end of the system consumed by the device, kw; N1: total input power chillers, kw; N3: total power end of the system consumed by the device, kw; (6) User and each coefficient of performance obtained by calculation subsystem entire air conditioning system, in order to obtain the evaluation results of the air conditioning system energy efficiency.
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