CN109519361B - A controller for one-use and one-standby star-delta fire water pump - Google Patents
A controller for one-use and one-standby star-delta fire water pump Download PDFInfo
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- CN109519361B CN109519361B CN201810680438.7A CN201810680438A CN109519361B CN 109519361 B CN109519361 B CN 109519361B CN 201810680438 A CN201810680438 A CN 201810680438A CN 109519361 B CN109519361 B CN 109519361B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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Abstract
本发明公开了一种一用一备星三角消防水泵的控制器，包括控制器电路、第一电流检测信号调理电路、第一电流检测保护电路、第二电流检测信号调理电路、第二电流检测保护电路、电压检测信号调理电路、电压检测保护电路、外部信号输入隔离电路、按键电路、继电器输出电路、显示电路、指示灯电路、蜂鸣器电路及控制面板，第一电流检测信号调理电路与第一电流检测保护电路连接，第二电流检测信号调理电路与第二电流检测保护电路连接，第一电流检测保护电路、第二电流检测保护电流、电压检测保护电路、外部信号输入隔离电路、按键电路、继电器输出电路、显示电路、指示灯电路、蜂鸣器电路及控制面板分别与控制器电路连接。
The invention discloses a controller for a star-delta fire water pump with one use and one backup, which includes a controller circuit, a first current detection signal conditioning circuit, a first current detection protection circuit, a second current detection signal conditioning circuit, and a second current detection circuit. Protection circuit, voltage detection signal conditioning circuit, voltage detection protection circuit, external signal input isolation circuit, button circuit, relay output circuit, display circuit, indicator light circuit, buzzer circuit and control panel, the first current detection signal conditioning circuit and The first current detection protection circuit is connected, the second current detection signal conditioning circuit is connected with the second current detection protection circuit, the first current detection protection circuit, the second current detection protection current, the voltage detection protection circuit, the external signal input isolation circuit, and the button The circuit, relay output circuit, display circuit, indicator circuit, buzzer circuit and control panel are respectively connected to the controller circuit.
Description
技术领域Technical field
本发明涉及消防水泵控制器领域，尤其涉及一种一用一备星三角消防水泵的控制器。The present invention relates to the field of fire water pump controllers, and in particular to a controller for a star-delta fire water pump that is used and prepared.
背景技术Background technique
传统的消防水泵的运作模式一般都是单一采用手动控制操作或单一自动控制操作，其运作模式选择十分单一，功能也十分单一，不能根据水位高、低情况智能化选择运作模式，也不能根据水位的变化情况轮投操作，更不具有故障指示、声光报警的功能，造成消防水泵工作过程耗电量大，安全性能差，智能化、自动化程度低。因此，针对目前消防水泵存在上述技术问题的不足，本申请人研发一种两台消防水泵互为备用，具有手动控制或自动控制的模式选择功能，当操作者采用手动控制操作时可通过按钮控制两台消防水泵设备的起停，并设有轮投工作的功能，可起动任何一台消防水泵，当工作泵出现故障时，备用泵延时自动投入工作，当水泵水池水位低时会自动停泵，起有缺水保护功能，同时将故障信号及起停信号反馈至消防中心外控模块，并有声光报警启示，使用方便、快捷、实用、简单，安全性强，智能化、自动化程度高的一种消防水泵一用一备控制电路确属必要。The operation mode of traditional fire water pumps is generally a single manual control operation or a single automatic control operation. The operation mode selection is very single, and the function is also very single. The operation mode cannot be intelligently selected according to the high or low water level, nor can it be selected based on the water level. It does not have the functions of fault indication and audible and visual alarms, resulting in high power consumption during the working process of the fire water pump, poor safety performance, and low degree of intelligence and automation. Therefore, in view of the shortcomings of the above-mentioned technical problems of current fire water pumps, the applicant has developed a kind of two fire water pumps that are mutually backup, with a mode selection function of manual control or automatic control. When the operator adopts manual control operation, it can be controlled by buttons. It can start and stop two fire water pump equipment and has the function of rotating work. It can start any fire water pump. When the working pump fails, the backup pump will automatically put into work after a delay. When the water level in the water pump pool is low, it will automatically stop. The pump has a water shortage protection function. At the same time, it feeds back fault signals and start and stop signals to the external control module of the fire center, and has audible and visual alarms. It is easy to use, fast, practical, simple, safe, intelligent and automated. It is indeed necessary to have a high-quality fire water pump with one control circuit and one backup circuit.
发明内容Contents of the invention
为了解决上述问题，本发明提出一种一用一备星三角消防水泵的控制器，其特征在于，包括控制器电路、第一电流检测信号调理电路、第一电流检测保护电路、第二电流检测信号调理电路、第二电流检测保护电路、电压检测信号调理电路、电压检测保护电路、外部信号输入隔离电路、按键电路、继电器输出电路、显示电路、指示灯电路、蜂鸣器电路及控制面板；In order to solve the above problems, the present invention proposes a controller for a star-delta fire water pump with one use and one backup, which is characterized in that it includes a controller circuit, a first current detection signal conditioning circuit, a first current detection protection circuit, a second current detection circuit Signal conditioning circuit, second current detection protection circuit, voltage detection signal conditioning circuit, voltage detection protection circuit, external signal input isolation circuit, button circuit, relay output circuit, display circuit, indicator light circuit, buzzer circuit and control panel;
所述第一电流检测信号调理电路及第二电流检测信号调理电路的输入端用于连接电流互感器，所述第一电流检测信号调理电路的输出端经过所述第一电流检测保护电路连接所述控制器电路的第一信号输入端口，所述第二电流检测信号调理电路的输出端经过所述第二电流检测保护电路连接所述控制器电路的第一信号输入端口；The input terminals of the first current detection signal conditioning circuit and the second current detection signal conditioning circuit are used to connect current transformers, and the output terminal of the first current detection signal conditioning circuit is connected to the first current detection signal conditioning circuit through the first current detection protection circuit. The first signal input port of the controller circuit, the output end of the second current detection signal conditioning circuit is connected to the first signal input port of the controller circuit through the second current detection protection circuit;
所述电压检测信号调理电路的输入端用于连接三相交流电压的输入端，所述电压检测信号调理电路的输出端经过所述电压检测保护电路连接所述控制器电路的第二信号输入端口；The input end of the voltage detection signal conditioning circuit is used to connect the input end of the three-phase AC voltage, and the output end of the voltage detection signal conditioning circuit is connected to the second signal input port of the controller circuit through the voltage detection protection circuit. ;
所述外部信号经过所述外部信号输入隔离电路连接所述控制器电路的第三信号输入端口；The external signal is connected to the third signal input port of the controller circuit through the external signal input isolation circuit;
所述控制面板上设置有按键，所述控制面板上的按键经过所述按键电路连接所述控制器电路的第四信号输入端口；The control panel is provided with buttons, and the buttons on the control panel are connected to the fourth signal input port of the controller circuit through the button circuit;
所述控制器的第一信号输出端口连接所述继电器输出电路，所述继电器输出电路包括第一继电器控制电路、第二继电器控制电路、第三继电器控制电路、第四继电器控制电路、第五继电器控制电路及第六继电器控制电路，所述第一继电器控制电路用于控制主电机三角形状态信号输出，所述第二继电器控制电路用于控制备用电机三角形状态信号输出，所述第三继电器控制电路用于控制主电机过载工作状态信号输出，所述第四继电器控制电路用于控制备用电机过载工作状态信号输出，所述第五继电器控制电路用于控制主电机星形状态信号输出，所述第六继电器控制电路用于控制备用电机星形状态信号输出，所述第五继电器控制电路用于控制主电机三角形状态信号输出；The first signal output port of the controller is connected to the relay output circuit, which includes a first relay control circuit, a second relay control circuit, a third relay control circuit, a fourth relay control circuit, and a fifth relay. Control circuit and sixth relay control circuit, the first relay control circuit is used to control the triangle status signal output of the main motor, the second relay control circuit is used to control the triangle status signal output of the backup motor, and the third relay control circuit The fourth relay control circuit is used to control the overload working status signal output of the main motor. The fourth relay control circuit is used to control the overload working status signal output of the backup motor. The fifth relay control circuit is used to control the star status signal output of the main motor. The third relay control circuit is used to control the star status signal output of the main motor. The six relay control circuits are used to control the star state signal output of the backup motor, and the fifth relay control circuit is used to control the delta state signal output of the main motor;
所述继电器输出电路的输出端连接所述控制器电路的第五信号输入端口；The output end of the relay output circuit is connected to the fifth signal input port of the controller circuit;
所述控制器的第二信号输出端口连接所述显示电路；The second signal output port of the controller is connected to the display circuit;
所述控制器的第三信号输出端口连接所述蜂鸣器电路。The third signal output port of the controller is connected to the buzzer circuit.
进一步的，所述第一电流检测信号调理电路及第二电流检测信号调理电路用于将所述电流互感器采集的信号转化为电压信号，所述电流检测保护电路用于对该转化后的电压信号进行钳位。Further, the first current detection signal conditioning circuit and the second current detection signal conditioning circuit are used to convert the signal collected by the current transformer into a voltage signal, and the current detection protection circuit is used to convert the converted voltage The signal is clamped.
进一步的，所述电压检测信号调理电路用于将输入的三相交流电压降压并转化为能够用于检测的电压信号，所述电压检测保护电路用于对该转化后的电压信号进行钳位。Further, the voltage detection signal conditioning circuit is used to step down the input three-phase AC voltage and convert it into a voltage signal that can be used for detection, and the voltage detection protection circuit is used to clamp the converted voltage signal. .
进一步的，所述外部信号包括：第一远程脉冲启动信号、第二远程脉冲启动信号、第一远程脉冲停止信号、第二远程脉冲停止信号、第一持续启停有源信号、第二持续启停有源信号、第一持续启停无源信号、第二持续启停无源信号、主电机过载检测信号、备用电机过载检测信号、主电机运行检测、备用电机运行检测、第一防火阀检测信号、第二防火阀检测信号、消防栓信号及缺水信号，所述外部信号输入隔离电路包括光耦，用于对外部信号的输入进行隔离。Further, the external signals include: a first remote pulse start signal, a second remote pulse start signal, a first remote pulse stop signal, a second remote pulse stop signal, a first continuous start and stop active signal, a second continuous start signal. Stop active signal, first continuous start and stop passive signal, second continuous start and stop passive signal, main motor overload detection signal, backup motor overload detection signal, main motor operation detection, backup motor operation detection, first fire damper detection signal, the second fire valve detection signal, the fire hydrant signal and the water shortage signal. The external signal input isolation circuit includes an optocoupler for isolating the input of external signals.
进一步的，所述控制面板上的按键包括：消音键、手动键、自动键、主电机高速启动键、主电机停机键、备用电机高速启动键及备用电机停机键。Further, the keys on the control panel include: silence key, manual key, automatic key, main motor high-speed start key, main motor stop key, backup motor high-speed start key and backup motor stop key.
进一步的，所述继电器输出电路还包括第七继电器控制电路、第八继电器控制电路、第九继电器控制电路及第十继电器控制电路，所述第七继电器控制电路用于控制第一消防联动信号输出，所述第八继电器控制电路用于控制第二消防联动信号输出，所述第九继电器控制电路用于控制手动/自动信号输出，所述第十继电器控制电路用于控制电源故障信号输出。Further, the relay output circuit also includes a seventh relay control circuit, an eighth relay control circuit, a ninth relay control circuit and a tenth relay control circuit. The seventh relay control circuit is used to control the first fire linkage signal output. , the eighth relay control circuit is used to control the output of the second fire linkage signal, the ninth relay control circuit is used to control the manual/automatic signal output, and the tenth relay control circuit is used to control the power failure signal output.
进一步的，所述显示电路包括数码管显示电路和指示灯电路，所述数码管显示电路用于显示运行状态、操作提示以及电流和电压的检测数值，所述指示灯电路包括电源正常指示灯、电源故障指示灯、手动指示灯、自动指示灯、第一联动指示灯、第二联动指示灯、主电机低速运行指示灯、备用电机低速运行指示灯、主电机高速运行指示灯、备用电机高速运行指示灯、主电机过载指示灯、备用电机过载指示灯，主电机停止指示灯及备用电机停止指示灯。Further, the display circuit includes a digital tube display circuit and an indicator light circuit. The digital tube display circuit is used to display operating status, operation prompts, and detection values of current and voltage. The indicator light circuit includes a power normal indicator light, Power failure indicator light, manual indicator light, automatic indicator light, first linkage indicator light, second linkage indicator light, main motor low speed operation indicator light, backup motor low speed operation indicator light, main motor high speed operation indicator light, backup motor high speed operation indicator light Indicator light, main motor overload indicator light, backup motor overload indicator light, main motor stop indicator light and backup motor stop indicator light.
进一步的，所述第一电流检测信号调理电路、所述第二电流检测信号调理电路、所述第一电流检测保护电路、所述第二电流检测保护电路、所述电压检测信号调理电路、所述电压检测保护电路、所述外部信号输入隔离电路和所述继电器输出电路设置于主电路板，所述控制器电路、按键电路、显示电路、指示灯电路、蜂鸣器电路设置于显示电路板，所述主电路板与所述显示电路板通过插针连接。Further, the first current detection signal conditioning circuit, the second current detection signal conditioning circuit, the first current detection protection circuit, the second current detection protection circuit, the voltage detection signal conditioning circuit, the The voltage detection protection circuit, the external signal input isolation circuit and the relay output circuit are arranged on the main circuit board, and the controller circuit, key circuit, display circuit, indicator light circuit and buzzer circuit are arranged on the display circuit board. , the main circuit board and the display circuit board are connected through pins.
进一步的，所述电流互感器传感信号、所述三相交流电压的输入端信号和所述外部信号通过外部输入信号端子输入到所述主电路板。Further, the current transformer sensing signal, the input signal of the three-phase AC voltage and the external signal are input to the main circuit board through an external input signal terminal.
本发明的有益效果在于：The beneficial effects of the present invention are:
（1）采用小型化设计，控制精度高，多功能，完全执行（GB16806-2006）标准，简单实用，安装方便，完全取代传统继电器控制方式，在很大程序上提高了组装效率，节约人工、线材箱体壳架等成本。(1) It adopts miniaturized design, high control precision, multi-function, fully implements the (GB16806-2006) standard, is simple and practical, and is easy to install. It completely replaces the traditional relay control method, greatly improves the assembly efficiency, saves labor and Cost of wire box, frame, etc.
（2）实时滚动检测受控设备的三相交流电压和三相交流电流，具有过压、欠压、错相、缺相和过载的声光报警和保护功能，具有电源故障无源反馈输出及受控设备过载反馈输出，可有效检测电源故障，及时提醒相关人员进行处理，能够有效保障消防水泵安全运行。(2) Real-time rolling detection of the three-phase AC voltage and three-phase AC current of the controlled equipment, with sound and light alarm and protection functions for overvoltage, undervoltage, wrong phase, phase loss and overload, and passive feedback output for power failure and The overload feedback output of the controlled equipment can effectively detect power failure and promptly remind relevant personnel to deal with it, which can effectively ensure the safe operation of fire pumps.
（3）实时对消防水泵受控设备进行自动、手动、远程启停控制，能够提供消防远程、就地有源DC24V直流电源持续启停控制，消防远程有源DC24V直流电源脉冲启停控制，消防远程无源信号启停控制；并具有消防联动反馈输出，启动、停止无源信号反馈输出；双电机控制设置能够满足和适应多种消防设备联动控制的需求。(3) Real-time automatic, manual, and remote start-stop control of fire water pump controlled equipment, which can provide continuous start-stop control of fire-fighting remote and local active DC24V DC power supply, fire-fighting remote active DC24V DC power supply pulse start-stop control, fire protection Remote passive signal start and stop control; and has fire linkage feedback output, start and stop passive signal feedback output; dual motor control settings can meet and adapt to the needs of a variety of fire equipment linkage control.
附图说明Description of the drawings
图1是本发明提出的一种一用一备星三角消防水泵的控制器的结构示意图；Figure 1 is a schematic structural diagram of a controller for a star-delta fire pump proposed by the present invention;
图2是本发明提出的一种一用一备星三角消防水泵的控制器的第一电流检测信号调理电路或第一电流检测信号调理电路的结构示意图；Figure 2 is a schematic structural diagram of a first current detection signal conditioning circuit or a first current detection signal conditioning circuit of a controller for a star-delta fire water pump with one use and one backup proposed by the present invention;
图3是本发明提出的一种一用一备星三角消防水泵的控制器的电流检测保护电路的结构示意图；Figure 3 is a schematic structural diagram of a current detection protection circuit of a controller for a star-delta fire water pump with one use and one backup proposed by the present invention;
图4是本发明提出的一种一用一备星三角消防水泵的控制器的信号输入隔离电路的结构图；Figure 4 is a structural diagram of a signal input isolation circuit of a controller for a star-delta fire water pump with one use and one backup proposed by the present invention;
图5是本发明提出的一种一用一备星三角消防水泵的控制器的第一继电器控制器电路或第二继电器控制电路的结构示意图；Figure 5 is a schematic structural diagram of a first relay controller circuit or a second relay control circuit of a controller for a star-delta fire water pump proposed by the present invention;
图6是本发明提出的一种一用一备星三角消防水泵的控制器的第三继电器控制电路至第六继电器控制电路中任意一项的结构示意图；Figure 6 is a schematic structural diagram of any one of the third relay control circuit to the sixth relay control circuit of a controller for a star-delta fire water pump proposed by the present invention;
图7是本发明提出的一种一用一备星三角消防水泵的控制器的控制面板示意图。Figure 7 is a schematic diagram of the control panel of a controller for a star-delta fire water pump proposed by the present invention.
具体实施方式Detailed ways
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图说明本发明的具体实施方式。In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described with reference to the accompanying drawings.
如图1所示的一种一用一备星三角消防水泵的控制器，其特征在于，包括控制器电路、第一电流检测信号调理电路、第一电流检测保护电路、第二电流检测信号调理电路、第二电流检测保护电路、电压检测信号调理电路、电压检测保护电路、外部信号输入隔离电路、按键电路、继电器输出电路、显示电路、指示灯电路、蜂鸣器电路及控制面板；A controller for a star-delta fire pump with one use and one backup as shown in Figure 1, which is characterized in that it includes a controller circuit, a first current detection signal conditioning circuit, a first current detection protection circuit, and a second current detection signal conditioning circuit. Circuit, second current detection protection circuit, voltage detection signal conditioning circuit, voltage detection protection circuit, external signal input isolation circuit, button circuit, relay output circuit, display circuit, indicator light circuit, buzzer circuit and control panel;
所述第一电流检测信号调理电路及第二电流检测信号调理电路的输入端用于连接电流互感器，所述第一电流检测信号调理电路的输出端经过所述第一电流检测保护电路连接所述控制器电路的第一信号输入端口，所述第二电流检测信号调理电路的输出端经过所述第二电流检测保护电路连接所述控制器电路的第一信号输入端口；The input terminals of the first current detection signal conditioning circuit and the second current detection signal conditioning circuit are used to connect current transformers, and the output terminal of the first current detection signal conditioning circuit is connected to the first current detection signal conditioning circuit through the first current detection protection circuit. The first signal input port of the controller circuit, the output end of the second current detection signal conditioning circuit is connected to the first signal input port of the controller circuit through the second current detection protection circuit;
所述电压检测信号调理电路的输入端用于连接三相交流电压的输入端，所述电压检测信号调理电路的输出端经过所述电压检测保护电路连接所述控制器电路的第二信号输入端口；The input end of the voltage detection signal conditioning circuit is used to connect the input end of the three-phase AC voltage, and the output end of the voltage detection signal conditioning circuit is connected to the second signal input port of the controller circuit through the voltage detection protection circuit. ;
所述外部信号经过所述外部信号输入隔离电路连接所述控制器电路的第三信号输入端口；The external signal is connected to the third signal input port of the controller circuit through the external signal input isolation circuit;
所述控制面板上设置有按键，所述控制面板上的按键经过所述按键电路连接所述控制器电路的第四信号输入端口；The control panel is provided with buttons, and the buttons on the control panel are connected to the fourth signal input port of the controller circuit through the button circuit;
所述控制器的第一信号输出端口连接所述继电器输出电路，所述继电器输出电路包括第一继电器控制电路、第二继电器控制电路、第三继电器控制电路、第四继电器控制电路、第五继电器控制电路及第六继电器控制电路，所述第一继电器控制电路用于控制主电机三角形状态信号输出，所述第二继电器控制电路用于控制备用电机三角形状态信号输出，所述第三继电器控制电路用于控制主电机过载工作状态信号输出，所述第四继电器控制电路用于控制备用电机过载工作状态信号输出，所述第五继电器控制电路用于控制主电机星形状态信号输出，所述第六继电器控制电路用于控制备用电机星形状态信号输出，所述第五继电器控制电路用于控制主电机三角形状态信号输出；The first signal output port of the controller is connected to the relay output circuit, which includes a first relay control circuit, a second relay control circuit, a third relay control circuit, a fourth relay control circuit, and a fifth relay. Control circuit and sixth relay control circuit, the first relay control circuit is used to control the triangle status signal output of the main motor, the second relay control circuit is used to control the triangle status signal output of the backup motor, and the third relay control circuit The fourth relay control circuit is used to control the overload working status signal output of the main motor. The fourth relay control circuit is used to control the overload working status signal output of the backup motor. The fifth relay control circuit is used to control the star status signal output of the main motor. The third relay control circuit is used to control the star status signal output of the main motor. The six relay control circuits are used to control the star state signal output of the backup motor, and the fifth relay control circuit is used to control the delta state signal output of the main motor;
所述继电器输出电路的输出端连接所述控制器电路的第五信号输入端口；The output end of the relay output circuit is connected to the fifth signal input port of the controller circuit;
所述控制器的第二信号输出端口连接所述显示电路；The second signal output port of the controller is connected to the display circuit;
所述控制器的第三信号输出端口连接所述蜂鸣器电路。The third signal output port of the controller is connected to the buzzer circuit.
进一步的，所述第一电流检测信号调理电路及第二电流检测信号调理电路用于将所述电流互感器采集的信号转化为电压信号，对该转化后的电压信号进行钳位，电流互感器共设置6个，分别安装于两路三相交流输入线路的每一相处，用于检测两路三相交流输入线路各相的电流。Further, the first current detection signal conditioning circuit and the second current detection signal conditioning circuit are used to convert the signal collected by the current transformer into a voltage signal, and clamp the converted voltage signal. The current transformer There are 6 in total, installed at each phase of the two three-phase AC input lines, for detecting the current of each phase of the two three-phase AC input lines.
第一电流检测信号调理电路、第二电流检测信号调理电路的结构如图2所示，包括第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第五电阻R5、第一电容C1、第二电容C2和第一运算放大器U1,电流互感器通过插槽接入并连接于第一电阻R1两端，第一电阻R1的第一端连接第二电阻R2的第一端，第一电阻R1的第二端连接第三电阻R3的第一端，第二电阻R2的第二端分别连接第一电容C1的第一端、第四电阻R4的第一端和第一运算放大器U1的正输入端，第一电容C1的第二端和第四电阻R4的第二端连接于参照电压Vref，第三电阻R3的第二端分别连接第二电容C2的第一端、第五电阻R5的第一端和第一运算放大器U1的负输入端，第二电容C2的第二端和第五电阻R5的第二端连接于第一运算放大器U1的输出端并作为电流检测信号调理电路的输出端。The structures of the first current detection signal conditioning circuit and the second current detection signal conditioning circuit are shown in Figure 2, including a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, A capacitor C1, a second capacitor C2 and a first operational amplifier U1. The current transformer is connected through the slot and connected to both ends of the first resistor R1. The first end of the first resistor R1 is connected to the first end of the second resistor R2. , the second end of the first resistor R1 is connected to the first end of the third resistor R3, the second end of the second resistor R2 is respectively connected to the first end of the first capacitor C1, the first end of the fourth resistor R4 and the first operation The positive input terminal of the amplifier U1, the second terminal of the first capacitor C1 and the second terminal of the fourth resistor R4 are connected to the reference voltage Vref, and the second terminal of the third resistor R3 is connected to the first terminal and the second terminal of the second capacitor C2 respectively. The first end of the five resistor R5 and the negative input end of the first operational amplifier U1, the second end of the second capacitor C2 and the second end of the fifth resistor R5 are connected to the output end of the first operational amplifier U1 and serve as a current detection signal. The output of the conditioning circuit.
电压检测信号调理电路的输入端连接三相交流电源输入，电压检测信号调理电路的输出端经过电压检测保护电路连接控制器电路的第二信号输入端口。The input end of the voltage detection signal conditioning circuit is connected to the three-phase AC power input, and the output end of the voltage detection signal conditioning circuit is connected to the second signal input port of the controller circuit through the voltage detection protection circuit.
电压检测信号调理电路用于将输入的三相交流电压降压并转化为能够用于检测的电压信号。电压检测信号调理电路如图3所示，包括第六电阻R6、第七电阻R7、第八电阻R8、第九电阻R9、第十电阻R10、第十一电阻R11、第十二电阻R12、第十三电阻R113、第十四电阻R14、第十五电阻R15、第十六电阻R16、第三电容C3、第四电容C4、第二运算放大器U2，三相交流电源的A、B或C相连接由第六电阻R6、第七电阻R7、第八电阻R8和第九电阻R9的串联线路再连接于第十四电阻R14的第一端，三相交流电源的N相连接由第十电阻R10、第十一电阻R11、第十二电阻R12、第十三电阻R113的构成的串联线路再连接于第第十五电阻R15的第一端，第十四电阻R14的第二端分别连接第三电容C3的第一端、第十六电阻R16的第一端和第二运算放大器U2的正输入端，第三电容C3的第二端和第十六电阻R16的第二端连接于参照电压Vref，第十五电阻R15的第二端分别连接第四电容C4的第一端、第十六电阻R16的第一端和第二运算放大器U2的负输入端，第四电容C4的第二端和第十六电阻R16的第二端连接于第二运算放大器U2的输出端并作为电压检测信号调理电路的输出端。The voltage detection signal conditioning circuit is used to step down the input three-phase AC voltage and convert it into a voltage signal that can be used for detection. The voltage detection signal conditioning circuit is shown in Figure 3, including the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the Thirteenth resistor R113, fourteenth resistor R14, fifteenth resistor R15, sixteenth resistor R16, third capacitor C3, fourth capacitor C4, second operational amplifier U2, A, B or C phase of three-phase AC power supply The series line connected by the sixth resistor R6, the seventh resistor R7, the eighth resistor R8 and the ninth resistor R9 is then connected to the first end of the fourteenth resistor R14. The N phase of the three-phase AC power supply is connected by the tenth resistor R10. , the series circuit composed of the eleventh resistor R11, the twelfth resistor R12, and the thirteenth resistor R113 is connected to the first end of the fifteenth resistor R15, and the second end of the fourteenth resistor R14 is connected to the third end respectively. The first terminal of the capacitor C3, the first terminal of the sixteenth resistor R16 and the positive input terminal of the second operational amplifier U2, the second terminal of the third capacitor C3 and the second terminal of the sixteenth resistor R16 are connected to the reference voltage Vref , the second end of the fifteenth resistor R15 is respectively connected to the first end of the fourth capacitor C4, the first end of the sixteenth resistor R16 and the negative input end of the second operational amplifier U2, the second end of the fourth capacitor C4 and The second end of the sixteenth resistor R16 is connected to the output end of the second operational amplifier U2 and serves as the output end of the voltage detection signal conditioning circuit.
第一电流检测保护电路、第二电流检测保护电路用于对该转化后的电压信号进行钳位，结构如图2所示，包括第十七电阻R17、第五电容C5和双二极管U3，双二极管U3包含第一二极管和第二二极管，第一二极管的正极作为双二极管U3的第一端，第二二极管的负极作为二极管U3的第二端，第一二极管的负极和第二二极管的正极连接作为双二极管U3的第三端；电流检测信号调理电路或电压检测信号调理电路的输出端连接第十七电阻R17的第一端，第十七电阻R17的第二端连接第五电容C5的第一端和双二极管U3的第三端作为电流检测保护电路或电压检测保护电路的输出端，第五电容C5的第二端和双二极管U3的第一端均接地，双二极管U3的第二端连接+3.3V直流电源。The first current detection protection circuit and the second current detection protection circuit are used to clamp the converted voltage signal. The structure is shown in Figure 2, including the seventeenth resistor R17, the fifth capacitor C5 and the double diode U3. Diode U3 includes a first diode and a second diode. The anode of the first diode serves as the first terminal of the double diode U3. The cathode of the second diode serves as the second terminal of the diode U3. The first diode The cathode of the tube and the anode of the second diode are connected as the third end of the dual diode U3; the output end of the current detection signal conditioning circuit or the voltage detection signal conditioning circuit is connected to the first end of the seventeenth resistor R17, and the seventeenth resistor The second end of R17 is connected to the first end of the fifth capacitor C5 and the third end of the double diode U3 as the output end of the current detection protection circuit or the voltage detection protection circuit. The second end of the fifth capacitor C5 and the third end of the double diode U3 One end is connected to ground, and the second end of dual diode U3 is connected to the +3.3V DC power supply.
外部信号经过外部信号输入隔离电路连接控制器电路的第三信号输入端口。外部信号包括：第一远程脉冲启动信号、第二远程脉冲启动信号、第一远程脉冲停止信号、第二远程脉冲停止信号、第一持续启停有源信号、第二持续启停有源信号、第一持续启停无源信号、第二持续启停无源信号、主电机过载检测信号、备用电机过载检测信号、主电机运行检测、备用电机运行检测、第一防火阀检测信号、第二防火阀检测信号、消防栓信号及缺水信号，所述外部信号输入隔离电路包括光耦，用于对外部信号的输入进行隔离。The external signal is connected to the third signal input port of the controller circuit through the external signal input isolation circuit. The external signals include: the first remote pulse start signal, the second remote pulse start signal, the first remote pulse stop signal, the second remote pulse stop signal, the first continuous start and stop active signal, the second continuous start and stop active signal, The first continuous start and stop passive signal, the second continuous start and stop passive signal, the main motor overload detection signal, the backup motor overload detection signal, the main motor operation detection, the backup motor operation detection, the first fire damper detection signal, the second fire protection Valve detection signal, fire hydrant signal and water shortage signal, the external signal input isolation circuit includes an optocoupler for isolating the input of external signals.
第一远程脉冲启动信号、第二远程脉冲启动信号、第一远程脉冲停止信号、第二远程脉冲停止信号来自控制柜以外的信号，由DC24V有源电压组成，点动启动，点动停止，由外部的两只按钮发出。The first remote pulse start signal, the second remote pulse start signal, the first remote pulse stop signal, and the second remote pulse stop signal come from signals outside the control cabinet. They are composed of DC24V active voltage. They are jog start and jog stop. The two outer buttons are issued.
第一持续启停无源信号、第二持续启停无源信号来自控制柜以外的自动控制信号，接通控制器启动回路时，水泵运行，断开信号则水泵停止。The first continuous start-stop passive signal and the second continuous start-stop passive signal come from automatic control signals outside the control cabinet. When the controller starts the loop, the water pump runs, and when the signal is disconnected, the water pump stops.
第一持续启停有源信号、第二持续启停有源信号来自消防中心的DC24V直流信号，在消防中用于强制启动。The first continuous start-stop active signal and the second continuous start-stop active signal come from the DC24V DC signal of the fire protection center and are used for forced start in firefighting.
主电机过载检测信号、备用电机过载检测信号来自水泵供电回路中控制过载信号输出的继电器，如果该继电器过载，控制过载信号输出的继电器的辅助常闭触点变成常开触点，向控制器发出电机过载检测信号。The main motor overload detection signal and the backup motor overload detection signal come from the relay that controls the overload signal output in the water pump power supply circuit. If the relay is overloaded, the auxiliary normally closed contact of the relay that controls the overload signal output becomes a normally open contact and reports to the controller. Sends a motor overload detection signal.
主电机运行检测、备用电机运行检测来自水泵供电回路中的交流接触器，交流接触器辅助触头初始状态是常开触点，交流接触器工作后变为常闭触点，通过交流接触器辅助触头向控制器发出电机运行检测信号。如果在运行过程中，交流接触器自动释放则视为故障，控制器检测到自动释放的交流接触器发出停机指示命令并报警。The main motor operation detection and the backup motor operation detection come from the AC contactor in the water pump power supply circuit. The initial state of the AC contactor auxiliary contact is a normally open contact. After the AC contactor works, it becomes a normally closed contact. It is assisted by the AC contactor. The contacts send a motor operation detection signal to the controller. If the AC contactor automatically releases during operation, it is considered a fault. The controller detects the automatically released AC contactor and issues a shutdown instruction command and alarms.
第一防火阀检测信号、第二防火阀检测信号为消防水泵工作的必要信号，控制器检测到防火阀未接入，会报警，控制器在任意状态都不能通过手动或自动信号启动水泵。The first fire damper detection signal and the second fire damper detection signal are necessary signals for the operation of the fire pump. If the controller detects that the fire damper is not connected, it will alarm. The controller cannot start the water pump through manual or automatic signals in any state.
信号输入隔离电路用于对外部信号的输入进行隔离，结构如图5所示，包括第十八电阻R18、第十九电阻R19和光耦U4，光耦U4内的发光器件正极作为光耦U4的第一端，光耦U4内的发光器件负极作为光耦U4的第二端，光耦U4内的接收器件输出端作为光耦U4的第四端，光耦U4内的接收器件输入端作为光耦U4的第三端，外部信号从第十九电阻R19的第一端输入，第十九电阻R19的第二端连接光耦U4的第一端，光耦U4的第二端连接外部信号地线，光耦U4的第三端连接本控制器地线，光耦U4的第三端连接第十八电阻R18第一端并作为外部信号输入隔离电路的输出端，第十八电阻R18的第二端连接+5V直流电源。The signal input isolation circuit is used to isolate the input of external signals. The structure is shown in Figure 5. It includes the eighteenth resistor R18, the nineteenth resistor R19 and the optocoupler U4. The anode of the light-emitting device in the optocoupler U4 serves as the At the first end, the cathode of the light-emitting device in the optocoupler U4 serves as the second end of the optocoupler U4, the output end of the receiving device in the optocoupler U4 serves as the fourth end of the optocoupler U4, and the input end of the receiving device in the optocoupler U4 serves as the optical The third end of the optical coupler U4, the external signal is input from the first end of the nineteenth resistor R19, the second end of the nineteenth resistor R19 is connected to the first end of the optocoupler U4, and the second end of the optocoupler U4 is connected to the external signal ground. line, the third end of the optocoupler U4 is connected to the ground wire of the controller, the third end of the optocoupler U4 is connected to the first end of the eighteenth resistor R18 and serves as the output end of the external signal input isolation circuit, and the third end of the eighteenth resistor R18 Connect both ends to the +5V DC power supply.
控制器的第一信号输出端口连接所述继电器输出电路，所述继电器输出电路包括第一继电器控制电路、第二继电器控制电路、第三继电器控制电路、第四继电器控制电路、第五继电器控制电路及第六继电器控制电路，所述第一继电器控制电路用于控制主电机过载工作状态信号输出，所述第二继电器控制电路用于控制备用电机过载工作状态信号输出，所述第三继电器控制电路用于控制主电机星形状态信号输出，所述第四电机用于控制备用电机星形状态信号输出，所述第五继电器控制电路用于控制主电机三角形状态信号输出，所述第六继电器控制电路用于控制备用电机三角形状态信号输出；The first signal output port of the controller is connected to the relay output circuit, which includes a first relay control circuit, a second relay control circuit, a third relay control circuit, a fourth relay control circuit, and a fifth relay control circuit. And a sixth relay control circuit, the first relay control circuit is used to control the overload working status signal output of the main motor, the second relay control circuit is used to control the overload working status signal output of the backup motor, and the third relay control circuit It is used to control the star state signal output of the main motor, the fourth motor is used to control the star state signal output of the backup motor, the fifth relay control circuit is used to control the delta state signal output of the main motor, and the sixth relay controls The circuit is used to control the triangle status signal output of the backup motor;
继电器输出电路还包括第七继电器控制电路、第八继电器控制电路、第九继电器控制电路及第十继电器控制电路，所述第七继电器控制电路用于控制第一消防联动信号输出，所述第八继电器控制电路用于控制第二消防联动信号输出，所述第九继电器控制电路用于控制手动/自动信号输出，所述第十继电器控制电路用于控制电源故障信号输出。The relay output circuit also includes a seventh relay control circuit, an eighth relay control circuit, a ninth relay control circuit and a tenth relay control circuit. The seventh relay control circuit is used to control the first fire linkage signal output, and the eighth relay control circuit is used to control the output of the first fire linkage signal. The relay control circuit is used to control the output of the second fire linkage signal, the ninth relay control circuit is used to control the manual/automatic signal output, and the tenth relay control circuit is used to control the power failure signal output.
如图5所示的第一继电器控制器电路或第二继电器控制电路的结构示意图，包括第二十电阻R123、第二十一电阻R126、第一三极管、第三二极管和双刀双掷继电器，第二十电阻R123的第一端和双刀双掷继电器的信号输入端与控制器的第一信号输出端口连接，第二十一电阻R126的第一端和第一三极管的基极分别与第二十电阻R123的第二端连接，第二十一电阻R126的第二端和第一三极管的发射极与外部信号地线连接，第三二极管的正极和双刀双掷继电器的第一端与第一三极管的集电极连接，第三二极管的负极和双刀双掷继电器的第二端与+5V直流电源连接，双刀双掷继电器的第一组继电器的辅助触头用于驱动外接接触器，第二组继电器的无源触点接口用于外接消防水泵。The structural diagram of the first relay controller circuit or the second relay control circuit shown in Figure 5 includes a twentieth resistor R123, a twenty-first resistor R126, a first transistor, a third diode and a double pole. Double-throw relay, the first end of the twentieth resistor R123 and the signal input end of the double-pole double-throw relay are connected to the first signal output port of the controller, the first end of the twenty-first resistor R126 and the first triode The base is connected to the second end of the twentieth resistor R123 respectively, the second end of the twenty-first resistor R126 and the emitter of the first transistor are connected to the external signal ground wire, the anode of the third diode and The first end of the double-pole double-throw relay is connected to the collector of the first transistor, the cathode of the third diode and the second end of the double-pole double-throw relay are connected to the +5V DC power supply, the The auxiliary contacts of the first group of relays are used to drive external contactors, and the passive contact interfaces of the second group of relays are used to connect to external fire water pumps.
如图6所示的第三继电器控制电路至第六继电器控制电路中任意一项的结构示意图，包括第二十二电阻、第二十三电阻、第二三极管、第四二极管和单刀双掷继电器，第二十二电阻的第一端和单刀双掷继电器的常开引脚分别与控制器的第一信号输出端口连接，第二十三电阻的第一端和第二三极管的基极分别与第二十二电阻的第二端连接，第二十三电阻的第二端和第二三极管的发射极分别与外部信号地线连接，单刀单掷继电器的第一端和第四二极管的阳极分别与第二三极管的集电极连接，单刀单掷继电器的第二端和第四二极管的阴极分别与+5V直流电源连接，单刀双掷继电器的控制信号输出端通过外部输出信号端外接外部接触器或电机。The structural diagram of any one of the third relay control circuit to the sixth relay control circuit shown in Figure 6 includes a twenty-second resistor, a twenty-third resistor, a second transistor, a fourth diode and The single-pole double-throw relay, the first end of the twenty-second resistor and the normally open pin of the single-pole double-throw relay are respectively connected to the first signal output port of the controller, and the first end and the second three-pole of the twenty-third resistor The base of the tube is connected to the second end of the twenty-second resistor respectively, the second end of the twenty-third resistor and the emitter of the second transistor are respectively connected to the external signal ground wire, and the first terminal of the single-pole single-throw relay The terminal and the anode of the fourth diode are respectively connected to the collector of the second transistor. The second terminal of the SPDT relay and the cathode of the fourth diode are respectively connected to the +5V DC power supply. The SPDT relay's The control signal output terminal is connected to an external contactor or motor through the external output signal terminal.
控制面板上的按键包括：消音键、手动键、自动键、主电机高速启动键、主电机停机键、备用电机高速启动键及备用电机停机键The buttons on the control panel include: silence button, manual button, automatic button, main motor high-speed start button, main motor stop button, backup motor high-speed start button and backup motor stop button.
显示电路包括数码管显示电路和指示灯电路，所述数码管显示电路用于显示运行状态、操作提示以及电流和电压的检测数值，所述指示灯电路包括电源正常指示灯、电源故障指示灯、手动指示灯、自动指示灯、第一联动指示灯、第二联动指示灯、主电机低速运行指示灯、备用电机低速运行指示灯、主电机高速运行指示灯、备用电机高速运行指示灯、主电机过载指示灯、备用电机过载指示灯，主电机停止指示灯及备用电机停止指示灯。The display circuit includes a digital tube display circuit and an indicator light circuit. The digital tube display circuit is used to display operating status, operation prompts, and current and voltage detection values. The indicator light circuit includes a power normal indicator light, a power failure indicator light, Manual indicator light, automatic indicator light, first linkage indicator light, second linkage indicator light, main motor low speed operation indicator light, backup motor low speed operation indicator light, main motor high speed operation indicator light, backup motor high speed operation indicator light, main motor Overload indicator light, backup motor overload indicator light, main motor stop indicator light and backup motor stop indicator light.
第一电流检测信号调理电路、所述第二电流检测信号调理电路、所述第一电流检测保护电路、所述第二电流检测保护电路、所述电压检测信号调理电路、所述电压检测保护电路、所述外部信号输入隔离电路和所述继电器输出电路设置于主电路板，所述控制器电路、按键电路、显示电路、指示灯电路、蜂鸣器电路设置于显示电路板，所述主电路板与所述显示电路板通过插针连接。The first current detection signal conditioning circuit, the second current detection signal conditioning circuit, the first current detection protection circuit, the second current detection protection circuit, the voltage detection signal conditioning circuit, and the voltage detection protection circuit , the external signal input isolation circuit and the relay output circuit are provided on the main circuit board, the controller circuit, key circuit, display circuit, indicator light circuit, and buzzer circuit are provided on the display circuit board, and the main circuit The board is connected to the display circuit board through pins.
电流互感器传感信号、所述三相交流电压的输入端信号和所述外部信号通过外部输入信号端子输入到所述主电路板。The current transformer sensing signal, the input signal of the three-phase AC voltage and the external signal are input to the main circuit board through an external input signal terminal.
需要说明的是，对于前述的各个方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某一些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和单元并不一定是本申请所必须的。It should be noted that for the sake of simple description, each of the foregoing method embodiments is expressed as a series of action combinations. However, those skilled in the art should know that this application is not limited by the described action sequence. Because according to this application, certain steps can be carried out in other orders or at the same time. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily necessary for this application.
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。In the above embodiments, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的程序可存储于计算机可读取存储介质中，该程序在执行时，可包括如上述各方法的实施例的流程。其中，所述的存储介质可为磁碟、光盘、ROM、RAM等。Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The program can be stored in a computer-readable storage medium, and the program can be stored in a computer-readable storage medium. When executed, the process may include the processes of the above method embodiments. Wherein, the storage medium may be a magnetic disk, optical disk, ROM, RAM, etc.
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。What is disclosed above is only the preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.
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