CN201956967U - Variable-frequency energy storage power saving device of three phase injection molding machine - Google Patents
Variable-frequency energy storage power saving device of three phase injection molding machine Download PDFInfo
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- CN201956967U CN201956967U CN2010205430696U CN201020543069U CN201956967U CN 201956967 U CN201956967 U CN 201956967U CN 2010205430696 U CN2010205430696 U CN 2010205430696U CN 201020543069 U CN201020543069 U CN 201020543069U CN 201956967 U CN201956967 U CN 201956967U
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 58
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- 238000001514 detection method Methods 0.000 claims abstract description 13
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- 238000005265 energy consumption Methods 0.000 description 4
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- Y—GENERAL 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
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Abstract
Description
技术领域technical field
本实用新型涉及三相注塑机变频储能节电设备，属电动机节能控制技术领域，具体涉及一种同时实现调速节能和电网削峰填谷这两种节能方法进行节电的电力控制装置。适用于带有三相交流电动机的注塑机上。The utility model relates to frequency conversion energy storage and power saving equipment for three-phase injection molding machines, which belongs to the technical field of motor energy saving control, in particular to an electric power control device which simultaneously realizes two energy saving methods of speed regulation and energy saving and power grid peak cutting and valley filling. Suitable for injection molding machines with three-phase AC motors.
背景技术Background technique
随着社会的进步、科技的发展，三相交流电动机注塑机已经成为一种随处可见，被大规模使用的常见通用型机电设备。三相交流电动机注塑机的耗电相对全国的电能能耗已经占据了相当的比例。With the progress of society and the development of science and technology, the three-phase AC motor injection molding machine has become a common general-purpose electromechanical equipment that can be seen everywhere and used on a large scale. The power consumption of three-phase AC motor injection molding machines has already accounted for a considerable proportion of the national energy consumption.
21世纪全球能源正日益紧张，中国又是能源消耗大国，节能节电势在必行。In the 21st century, global energy is becoming increasingly tense, and China is a big energy consumer, so it is imperative to save energy.
因此，对注塑机进行节电改造是很有必要的。Therefore, it is necessary to carry out energy-saving transformation on injection molding machines.
目前，有很多场合，三相交流电动机注塑机没有采用节能技术对其进行节能改造，或仅仅只是简单安装了变频器将其速度固定降低到某个值而没有进行动态调节。At present, there are many occasions where the three-phase AC motor injection molding machine does not adopt energy-saving technology for energy-saving transformation, or simply installs a frequency converter to reduce its speed to a fixed value without dynamic adjustment.
实用新型内容Utility model content
本实用新型的目的是克服了上述现有技术中的电能浪费的缺点，提供一种结构简单实用、成本较低、能够全自动运行、节电效果显著的三相注塑机变频储能节电设备。The purpose of this utility model is to overcome the above-mentioned shortcoming of electric energy waste in the prior art, and to provide a three-phase injection molding machine frequency conversion energy storage and power saving device with simple and practical structure, low cost, fully automatic operation and remarkable power saving effect .
为了实现上述实用新型目的采用如下技术方案：Adopt following technical scheme in order to realize above-mentioned utility model purpose:
本实用新型的三相注塑机变频储能节电设备，包括注塑机运行参数检测电路(10)、三相整流电路(20)、充电电路(30)、电池(40)、电池开关(50)、三相逆变器(60)、电容器(70)、控制电路(80)、三相电源接触器(90)。外部电网三相电源接入三相电源接触器(90)的输入端，三相电源接触器(90)的输出端分别与三相整流电路(20)的输入端、充电电路(30)的输入端连接，三相整流电路(20)的输出端分别与电池开关(50)的输入端、三相逆变器(60)输入端相连接，电池开关(50)的输出端分别与充电电路(30)的输出端、电池(40)相连接，三相逆变器(60)的直流端与电容器(70)相连接，控制电路(80)分别与注塑机运行参数检测电路(10)、三相整流电路(20)的控制端、充电电路(30)的控制端、电池开关(50)的控制端、三相逆变器(60)的控制端、三相电源接触器(90)的控制端相连接，三相逆变器(60)的输出端与注塑机交流电动机相连接，注塑机运行参数检测电路(10)和安装于注塑机上的传感器相连接。The frequency conversion energy storage and power saving equipment of the three-phase injection molding machine of the present invention comprises an injection molding machine operating parameter detection circuit (10), a three-phase rectification circuit (20), a charging circuit (30), a battery (40), and a battery switch (50) , a three-phase inverter (60), a capacitor (70), a control circuit (80), and a three-phase power contactor (90). The three-phase power supply of the external grid is connected to the input end of the three-phase power contactor (90), and the output end of the three-phase power contactor (90) is respectively connected to the input end of the three-phase rectification circuit (20) and the input end of the charging circuit (30). The output terminal of the three-phase rectification circuit (20) is connected with the input terminal of the battery switch (50) and the input terminal of the three-phase inverter (60) respectively, and the output terminal of the battery switch (50) is connected with the charging circuit ( 30) is connected to the output terminal of the battery (40), the DC terminal of the three-phase inverter (60) is connected to the capacitor (70), and the control circuit (80) is respectively connected to the injection molding machine operating parameter detection circuit (10), three The control terminal of the phase rectification circuit (20), the control terminal of the charging circuit (30), the control terminal of the battery switch (50), the control terminal of the three-phase inverter (60), and the control of the three-phase power contactor (90) The terminals are connected, the output terminal of the three-phase inverter (60) is connected with the AC motor of the injection molding machine, and the operating parameter detection circuit (10) of the injection molding machine is connected with the sensor installed on the injection molding machine.
采用了该实用新型的三相注塑机变频储能节电设备，可同时实现注塑机的动态调速节能和对电网削峰填谷进行蓄电储能这两种节能方法进行节电。本节电装置应用在未作同类节电改造的注塑机上时，一般可取得20％～90％的节电效果，同时本实用新型的节电器不影响注塑机正常工作使用，安装简便，具备良好的经济效益和社会效益，而且结构简单实用，成本较低，能够全自动运行，节电效果显著。在注塑机节能方面具有广泛的应用前景。The utility model adopts the three-phase injection molding machine frequency conversion energy storage and power saving equipment, which can simultaneously realize the dynamic speed regulation and energy saving of the injection molding machine and the power storage and energy storage for the power grid peak shaving and valley filling to save electricity. When this energy-saving device is applied to an injection molding machine that has not undergone similar energy-saving transformation, it can generally achieve a power-saving effect of 20% to 90%. Good economic and social benefits, simple and practical structure, low cost, fully automatic operation, remarkable power saving effect. It has broad application prospects in the energy saving of injection molding machines.
附图说明Description of drawings
附图为本实用新型的三相注塑机变频储能节电设备的工作原理框图。The accompanying drawing is a block diagram of the working principle of the three-phase injection molding machine frequency conversion energy storage and power saving equipment of the utility model.
具体实施方式Detailed ways
为了能够更清楚地理解本实用新型的技术内容，特举以下实施例详细说明。In order to understand the technical content of the present utility model more clearly, the following examples are given in detail.
参阅附图所示，以应用于一台380V、50HZ、3相、15KW的注塑机为参照，该三相注塑机变频储能节电设备，包括注塑机运行参数检测电路(10)、三相整流电路(20)、充电电路(30)、电池(40)、电池开关(50)、三相逆变器(60)、电容器(70)、控制电路(80)、三相电源接触器(90)。外部电网三相电源接入三相电源接触器(90)的输入端，三相电源接触器(90)的输出端分别与三相整流电路(20)的输入端、充电电路(30)的输入端连接，三相整流电路(20)的输出端分别与电池开关(50)的输入端、三相逆变器(60)输入端相连接，电池开关(50)的输出端分别与充电电路(30)的输出端、电池(40)相连接，三相逆变器(60)的直流端与电容器(70)相连接，控制电路(80)分别与注塑机运行参数检测电路(10)、三相整流电路(20)的控制端、充电电路(30)的控制端、电池开关(50)的控制端、三相逆变器(60)的控制端、三相电源接触器(90)的控制端相连接，三相逆变器(60)的输出端与注塑机交流电动机相连接，注塑机运行参数检测电路(10)和安装于注塑机上的传感器相连接。Referring to the accompanying drawings, taking a 380V, 50HZ, 3-phase, 15KW injection molding machine as a reference, the three-phase injection molding machine frequency conversion energy storage and power saving equipment includes an injection molding machine operating parameter detection circuit (10), a three-phase Rectifier circuit (20), charging circuit (30), battery (40), battery switch (50), three-phase inverter (60), capacitor (70), control circuit (80), three-phase power contactor (90 ). The three-phase power supply of the external grid is connected to the input end of the three-phase power contactor (90), and the output end of the three-phase power contactor (90) is respectively connected to the input end of the three-phase rectification circuit (20) and the input end of the charging circuit (30). The output terminal of the three-phase rectification circuit (20) is connected with the input terminal of the battery switch (50) and the input terminal of the three-phase inverter (60) respectively, and the output terminal of the battery switch (50) is connected with the charging circuit ( 30) is connected to the output terminal of the battery (40), the DC terminal of the three-phase inverter (60) is connected to the capacitor (70), and the control circuit (80) is respectively connected to the injection molding machine operating parameter detection circuit (10), three The control terminal of the phase rectification circuit (20), the control terminal of the charging circuit (30), the control terminal of the battery switch (50), the control terminal of the three-phase inverter (60), and the control of the three-phase power contactor (90) The terminals are connected, the output terminal of the three-phase inverter (60) is connected with the AC motor of the injection molding machine, and the operating parameter detection circuit (10) of the injection molding machine is connected with the sensor installed on the injection molding machine.
同时，该三相注塑机变频储能节电设备中的三相逆变器(60)中所包含的功率器件可以为V型槽MOS场效应管(VMOS)、绝缘栅双极晶体管(IGBT)、集成门极换向晶闸管(IGCT)、智能功率开关器件和驱动电路集成模块(IPM)或智能型功率集成电路(SPIC)。At the same time, the power devices contained in the three-phase inverter (60) in the three-phase injection molding machine frequency conversion energy storage and power saving equipment can be V-groove MOS field effect transistor (VMOS), insulated gate bipolar transistor (IGBT) , Integrated gate commutated thyristor (IGCT), intelligent power switching device and drive circuit integrated module (IPM) or intelligent power integrated circuit (SPIC).
380V50HZ电源经三相电源接触器(90)接入到充电电路(30)和三相整流电路(20)，当电价处于低谷电价时(一般为晚上22点到白天8点)，充电电路(30)投入运行，给电池(40)进行充电，此时电池开关(50)断开。市电通过三相整流电路(20)变成直流电，经三相逆变器(60)将直流电转化为频率可调的交流电，该交流电送入到注塑机，不同的频率对应注塑机不同的速度。控制电路(80)实时接收注塑机运行参数检测电路(10)的反馈信号，经过运算后，将输出转速信号到三相逆变器(60)，三相逆变器(60)输出对应的频率到注塑机电机。注塑机电机速度下降，将导致注塑机能耗大幅下降。The 380V50HZ power supply is connected to the charging circuit (30) and the three-phase rectification circuit (20) through the three-phase power contactor (90). ) into operation, the battery (40) is charged, and now the battery switch (50) is disconnected. The mains power is converted into direct current through the three-phase rectifier circuit (20), and the direct current is converted into frequency-adjustable alternating current through the three-phase inverter (60). The alternating current is sent to the injection molding machine, and different frequencies correspond to different speeds of the injection molding machine. . The control circuit (80) receives the feedback signal of the injection molding machine operating parameter detection circuit (10) in real time, and after calculation, outputs the rotational speed signal to the three-phase inverter (60), and the three-phase inverter (60) outputs the corresponding frequency to the injection molding machine motor. The reduction of the motor speed of the injection molding machine will lead to a significant reduction in the energy consumption of the injection molding machine.
当电价处于高峰电时(一般为白天八点到晚上22点)，充电电路(30)自动断开，由电池(40)通过电池开关(50)给三相逆变器(60)进行直流供电，此时，三相整流电路(20)自动断开，电池(40)提供的直流电经三相逆变器(60)将直流电转化为频率可调的交流电，该交流电送入到注塑机，不同的频率对应注塑机不同的速度。控制电路(80)实时接收注塑机运行参数检测电路(10)的反馈信号，经过运算后，将输出转速信号到三相逆变器(60)，三相逆变器(60)输出对应的频率到注塑机电机。注塑机电机速度下降，将导致注塑机能耗大幅下降。When the electricity price is at peak power (generally from 8 o'clock in the daytime to 22 o'clock in the evening), the charging circuit (30) is automatically disconnected, and the battery (40) supplies DC power to the three-phase inverter (60) through the battery switch (50) , at this time, the three-phase rectification circuit (20) is automatically disconnected, and the direct current provided by the battery (40) is converted into frequency-adjustable alternating current through the three-phase inverter (60), and the alternating current is sent to the injection molding machine. The frequency corresponds to different speeds of the injection molding machine. The control circuit (80) receives the feedback signal of the injection molding machine operating parameter detection circuit (10) in real time, and after calculation, outputs the rotational speed signal to the three-phase inverter (60), and the three-phase inverter (60) outputs the corresponding frequency to the injection molding machine motor. The reduction of the motor speed of the injection molding machine will lead to a significant reduction in the energy consumption of the injection molding machine.
对于这台380V、50HZ、3相、15KW的注塑机来说，电机速度可根据注塑机运行参数检测电路(10)进行调节，能耗可显著降低。同时由于电力低谷电价比高峰电价便宜很多，当处于电力低谷电价时，本实用新型的三相注塑机变频储能节电设备可对电池(40)充电蓄能；当处于电力高峰电价时，本实用新型的三相注塑机变频储能节电设备可从电池(40)中放电以使注塑机正常运作，避开了高峰用电，使实际缴纳的电费大额降低。For this 380V, 50HZ, 3-phase, 15KW injection molding machine, the motor speed can be adjusted according to the injection molding machine operating parameter detection circuit (10), and the energy consumption can be significantly reduced. Simultaneously because the low-valley electricity price of electric power is much cheaper than the high-peak electricity price, when being in the electric power low-valley electric price, the three-phase injection molding machine frequency conversion energy storage power saving equipment of the present utility model can charge and store the battery (40); when being in the electric power peak electric price, this The utility model of three-phase injection molding machine frequency conversion energy storage and power saving equipment can discharge from the battery (40) to make the injection molding machine operate normally, avoid peak power consumption, and greatly reduce the actually paid electricity bill.
采用了该实用新型的三相注塑机变频储能节电设备，可同时实现注塑机的动态调速节能和对电网削峰填谷进行蓄电储能这两种节能方法进行节电。本节电装置应用在未作同类节电改造的注塑机上时，一般可取得20％～90％的节电效果，同时本实用新型的节电器不影响注塑机正常工作使用，安装简便，具备良好的经济效益和社会效益，而且结构简单实用，成本较低，能够全自动运行，节电效果显著。在注塑机节能方面具有广泛的应用前景。The utility model adopts the three-phase injection molding machine frequency conversion energy storage and power saving equipment, which can simultaneously realize the dynamic speed regulation and energy saving of the injection molding machine and the power storage and energy storage for the power grid peak shaving and valley filling to save electricity. When this energy-saving device is applied to an injection molding machine that has not undergone similar energy-saving transformation, it can generally achieve a power-saving effect of 20% to 90%. Good economic and social benefits, simple and practical structure, low cost, fully automatic operation, remarkable power saving effect. It has broad application prospects in the energy saving of injection molding machines.
在此说明书中，本实用新型已参照其特定的实施例作了描述。但是，很显然仍可以作出各种修改和变换而不背离本实用新型的精神和范围。因此，说明书和附图应被认为是说明性的而非限制性的。In this specification, the invention has been described with reference to specific embodiments thereof. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, the specification and drawings are to be regarded as illustrative rather than restrictive.
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| US12179259B2 (en) | 2017-06-19 | 2024-12-31 | Italpressegauss S.P.A. | Die-casting machine with energy saving evaluation |
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| US12179259B2 (en) | 2017-06-19 | 2024-12-31 | Italpressegauss S.P.A. | Die-casting machine with energy saving evaluation |
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Assignee: Shanghai Lanyiang Electronic Technology Co., Ltd. Assignor: Shanghai Elion Electric Technology Co., Ltd. Contract record no.: 2013310000024 Denomination of utility model: Variable frequency energy storage power-saving device for three-phase injection molding machine Granted publication date: 20110831 License type: Exclusive License Record date: 20130327 |
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