WO2018036411A1 - 电动给水泵分系统及其构成的电动给水泵系统 - Google Patents

电动给水泵分系统及其构成的电动给水泵系统 Download PDF

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WO2018036411A1
WO2018036411A1 PCT/CN2017/097587 CN2017097587W WO2018036411A1 WO 2018036411 A1 WO2018036411 A1 WO 2018036411A1 CN 2017097587 W CN2017097587 W CN 2017097587W WO 2018036411 A1 WO2018036411 A1 WO 2018036411A1
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motor
water pump
coupling
pump
electric
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French (fr)
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俞朝富
刘亚辉
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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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • 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

Definitions

  • the invention relates to an electric feed water pump sub-system and an electric feed water pump system thereof.
  • the boiler system uses the structure of the electric feed water pump to supply the boiler with the fixed design of the electric motor plus hydraulic coupler and the feed pump and the pre-pump.
  • the design structure of the pump determines that the overall operating efficiency of the electric feed pump system is low and the power consumption is large, which makes the power plant consumes a large proportion of power while generating electricity, and the control is difficult.
  • the feed pump system is started, it will cause harm and impact to the safety of the electricity in the factory.
  • the large wear of the motor will cause frequent failures and affect safe power generation.
  • the capacity of the electric feed pump system of the generator set is 3X 35% capacity
  • the electric feed pump system does not have the function of the spare safety pump, which is extremely large. Harmful to the production operation of the entire power plant. The same problem exists in the same 3X50% capacity configuration.
  • an object of the present invention to provide an electric water pump sub-system and an electric water pump system thereof.
  • Electric water pump sub-system including frequency converter, feed water pump, electric motor, gear box, front pump;
  • the frequency converter is connected to the electric motor via a cable; the electric motor is connected to the front pump through a coupling; the electric motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling.
  • the present invention also includes connecting to the frequency converter through a cable and a control cable, and for controlling the electric motor
  • the water pump subsystem and the integrated control and power system that provide power and signals to the electric feed pump subsystem.
  • Electric feed pump sub-system including frequency converter, feed water pump, electric motor, gear box, front pump, independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling; the independent motor is separately connected to the front pump through the coupling connection.
  • control and power supply system for connecting the frequency converter and the independent motor through the cable and the control cable, and for controlling the electric water pump sub-system and providing power and signals for the electric water pump sub-system.
  • the electric water pump system includes three sub-systems; the first sub-system includes a frequency converter, a feed water pump, an electric motor, a gear box, and a front pump; the frequency converter is connected to the electric motor through a cable; the electric motor passes through the coupling and the front a pump connection; the motor is also coupled to the gearbox via a coupling; the gearbox is also coupled to the feed water pump via a coupling;
  • the second sub-system includes a frequency converter, a feed water pump, an electric motor, a gear box, a front pump; the frequency converter is connected to the electric motor through a cable; the electric motor is connected to the front pump through a coupling; the electric motor also passes through the coupling
  • the gear unit is connected to the gear box; the gear box is also connected to the feed water pump through the coupling;
  • the third sub-system includes an electric motor, a fluid coupling, a feed water pump, and a front pump; the electric motor is connected to the hydraulic coupler through a coupling; the hydraulic coupler is connected to the feed water pump through a coupling; The motor is also connected to the front pump via a coupling.
  • the present invention also includes an integrated control and power supply system for controlling the electric water pump system and providing power and signals to the electric water pump system;
  • the integrated control and power supply system is connected to the frequency converters of the first subsystem and the second subsystem through cables and control cables; the control system also passes through the cable and the cable and the hydraulic coupler of the third subsystem and the electric system Machine connection.
  • Electric feed pump system including three sub-systems
  • the first subsystem includes a frequency converter, a feed water pump, an electric motor, a gear box, a front pump, and an independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling; the independent motor is separately connected to the front pump through the coupling connection;
  • the second subsystem includes a frequency converter, a feed water pump, an electric motor, a gear box, a front pump, and an independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling; the independent motor is separately connected to the front pump through the coupling connection;
  • the third sub-system includes an electric motor, a fluid coupling, a feed water pump, and a front pump; the electric motor is connected to the hydraulic coupler through a coupling; the hydraulic coupler is connected to the feed water pump through a coupling; The motor is also connected to the front pump via a coupling.
  • control and power supply system for controlling the electric water pump system and providing power and control signals for the electric water pump system
  • the integrated control and power supply system is coupled to the frequency converter and the independent motor of the first subsystem and the second subsystem by cables and control cables; the control system also passes through the fluid coupling of the cable and the cable and the third subsystem Connected to the motor.
  • the present invention has the following advantages and beneficial effects:
  • the invention not only greatly improves the work efficiency, but also directly reduces the self-energy consumption during the work, greatly reduces the harm and destructiveness of the power supply system of the power plant when the motor is started, and directly reduces the daily maintenance and maintenance costs. expenditure.
  • FIG. 1 is a block diagram of a system of the first embodiment of the present invention.
  • FIG. 2 is a system block diagram of the second embodiment of the present invention.
  • Figure 3 is a block diagram of the system of the present invention - the third embodiment.
  • FIG. 4 is a block diagram of a system according to a fourth embodiment of the present invention.
  • FIG. 5 is a comparison diagram of the efficiency curve of the combination of the frequency converter and the gear box according to the present invention and the efficiency curve of the hydraulic coupler in the prior art.
  • the electric feed water pump sub-system comprises an inverter, a feed water pump, an electric motor, a gear box and a front pump; the electric motor is respectively connected with a frequency converter, a gear box and a front pump; the feed water pump Connected to the gearbox.
  • the present invention also includes an integrated control and power supply system that is coupled to the frequency converter via a cable and that is used to control the electric water pump sub-system and to provide power and signals to the electric water pump sub-system.
  • the integrated control and power supply system are used to analyze and calculate the current water supply demand value and convert it into a control command, and then distribute it to each electric water pump sub-system, and provide work power, reasonable command electric
  • the pumping system is divided into a working mode and the best and safest way to control.
  • the frequency converter is connected to the motor through a cable for controlling output power to the motor; the motor is coupled to the gearbox through a coupling for outputting power to the gearbox;
  • the gearbox is coupled to the feedwater pump via a coupling for conducting torque to the feed pump;
  • the motor is coupled to the pre-pump via a coupling for conducting torque to the front a pump;
  • the front pump is pumped to the feed water pump by pressurizing the deaerated water provided by the deaerator under the driving of the motor.
  • the feed water pump again pressurizes the deaerated water and delivers it to the boiler.
  • the embodiment not only greatly improves the work efficiency, but also directly reduces the self-energy consumption during the work, greatly reduces the harm and destructiveness of the power supply system of the power plant when the motor is started, and directly reduces the daily maintenance and maintenance costs. Expenditure.
  • Embodiment 1 includes an inverter, a feed water pump, an electric motor, a gear box, a front pump, and an independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling; the independent motor is separately connected to the front pump through the coupling connection;
  • It also includes an integrated control and power system for connecting the inverter and the independent motor through cables and control cables, and for controlling the electric feed pump subsystem and providing power and signals to the electric feed pump subsystem.
  • a separate independent motor is separately connected to the independent front pump to obtain torque power.
  • the separately driven front pump retains the water supply pipe to supply water to the feed water pump.
  • the electric feed pump system includes three sub-systems
  • the first sub-system includes a frequency converter, a feed water pump, an electric motor, a gear box, and a front pump; the electric motor is respectively connected to the frequency converter, the gear box and the front pump; the feed water pump is connected to the gear box;
  • the second sub-system includes a frequency converter, a feed water pump, an electric motor, a gear box, and a front pump; the electric motor is respectively connected to the frequency converter, the gear box and the front pump; the feed water pump is connected to the gear box;
  • the third sub-system includes an electric motor, a fluid coupling, a feed water pump, and a front pump; the feed water pump, the hydraulic coupler, the electric motor, and the front pump are sequentially connected through a coupling.
  • the present invention also includes for controlling an electric water pump system and providing an electric water pump system Integrated control and power system for power and control signals;
  • the integrated control and power system is coupled to the frequency converters of the first subsystem and the second subsystem via a cable; the control system is also coupled to the fluid coupler and motor of the third subsystem via cables and control cables.
  • the parameters of the boiler system are collected in daily production, the current water supply demand value is comprehensively analyzed and calculated, and converted into a control command, which is reasonably distributed to each sub-system, and the work power is provided, and the three sub-systems are reasonably commanded. Different work conditions to achieve the best work mode and the safest way to control.
  • the integrated control and power system is connected to the frequency converter through a power cable and a control cable to realize power supply and control output.
  • the frequency converter is coupled to the motor via a cable for controlling output power to the motor;
  • the motor is coupled to the gearbox via a coupling for outputting power to the gearbox;
  • the gearbox Connecting to the feed water pump through a coupling for conducting torque to the feed pump;
  • the electric motor is coupled to the pre-pump through a coupling for transmitting torque to the pre-pump;
  • the pre-pump pump pressurizes the deaerated water provided by the deaerator to the feed pump under the drive of the motor, and the feed pump pressurizes the deoxidized water again and delivers it to the boiler.
  • the specific structure of the third subsystem is as follows: the integrated control and power system is connected to the motor by a control cable and a power cable; the motor is connected to the fluid coupler through a coupling for Torque output to the fluid coupling; the fluid coupling is coupled to the feed pump through a coupling for transmitting torque to the feed pump; the motor is coupled to the front through the coupling a pump connection for transmitting torque to the pre-pump; the pre-pump is pumped to the feed water pump by pressurizing the deaerated water provided by the deaerator, and the feed pump pressurizes the deaerated water again. Transfer to the boiler.
  • the integrated control and power supply system is coupled to the fluid coupling in the third subsystem by a control cable and a power cable to control the size of the position of the scoop tube inside the fluid coupling to achieve the hydraulic force The standby state of the coupler and various work states.
  • the invention provides power supply and output signal work to the three electric feed water pump sub-systems in the boiler system by using the integrated control and power supply system to achieve the highest efficiency work, in particular, the integrated control and power supply system can directly control the first
  • the respective inverters in the one-point system and the second subsystem drive the motor, and the motor drives the feed water pump through the gearbox to realize the new structure of the electric water pump system, completely replacing the traditional "hydraulic coupler" transmission mode, and improves
  • the operating efficiency and safety factor of the unit greatly reduce the daily maintenance and maintenance costs and reduce energy consumption.
  • the third subsystem retains the traditional "hydraulic coupler" transmission shift mode, it functions as a backup system throughout the boiler system.
  • the whole system is under daily control, under the control of integrated control and power system.
  • the third subsystem is only used as a backup state and emergency use.
  • the three electric water pump sub-systems are collectively controlled by the integrated control and the power supply system, thereby effectively providing the safety and controllability of the entire feed pump system, and combining the first sub-system and The second subsystem uses a frequency converter to drive the motor and drive the feed pump through the gearbox to work efficiently.
  • This centralized control mode improves safety and efficiency compared to prior art decentralized control of a single independent electric feed pump system, improving the control capability and level of the boiler system.
  • the "hydraulic coupler" transmission shifting mode in the traditional old structure is completely replaced, which not only greatly improves the work efficiency, but also directly reduces the energy consumption of the work itself. It greatly reduces the hazard and destructiveness of the power supply system of the power plant when starting the motor, and directly reduces the expenses for daily maintenance and maintenance costs.
  • the difference between this embodiment and Embodiment 3 is that it includes three sub-systems;
  • the first sub-system includes a frequency converter, a feed water pump, an electric motor, a gear box, a front pump, and an independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling Connecting the gear box to the feed water pump through a coupling; the independent motor is separately connected to the front pump through the coupling;
  • the second subsystem includes a frequency converter, a feed water pump, an electric motor, a gear box, a front pump, and an independent motor;
  • the frequency converter is connected to the motor through a cable; the motor is also connected to the gear box through a coupling; the gear box is also connected to the feed water pump through a coupling; the independent motor passes through the coupling and the front separate pump connection;
  • the third sub-system includes an electric motor, a fluid coupling, a feed water pump, and a front pump; the electric motor is connected to the hydraulic coupler through a coupling; the hydraulic coupler is connected to the feed water pump through a coupling; The motor is also connected to the front pump through a coupling;
  • control and power systems for controlling the electric water pump system and providing power and control signals to the electric water pump system;
  • the integrated control and power supply system is coupled to the frequency converter and the independent motor of the first subsystem and the second subsystem via a cable; the control system is also coupled to the fluid coupling and motor of the third subsystem via a cable.
  • a separate independent motor is separately connected to the independent front pump to obtain torque power.
  • the separately driven front pump retains the water supply pipe to supply water to the feed water pump.
  • the present invention can be preferably implemented in accordance with the above embodiments. It should be noted that, based on the above structural design, in order to solve the same technical problem, even if some substantial changes or retouchings are made on the present invention, the essence of the technical solution adopted is still the same as the present invention. Therefore, it should also be within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Multiple Motors (AREA)
  • Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

一种电动给水泵分系统，包括变频器、给水泵、电动机、齿轮箱、前置泵；所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接。由电动给水泵分系统构成的电动给水泵系统。该电动给水泵系统不但做工效率大大提高，而且直接降低了做工时的自身能量消耗，减少了启动电机时对电厂本身电力供应系统的危害性和破坏性，同时直接减少了日常检修和维护成本的支出。

Description

电动给水泵分系统及其构成的电动给水泵系统 技术领域
本发明涉及一种电动给水泵分系统及其构成的电动给水泵系统。
背景技术
目前，凡是在火力发电厂的核心设备：锅炉系统中采用电动给水泵的结构来给锅炉供水的均采用电动机加液力耦合器加给水泵及前置泵的固定设计方案，这种旧的给水泵设计结构决定了该种电动给水泵系统运行后的整体运行效率较低，消耗的电力较大，使得火电厂在发电的同时自身消耗的电力比例值较大，且控制难度较大，整个电动给水泵系统启动时对本厂内的用电安全造成危害和影响，电动机磨损较大造成故障率频发，影响安全发电。尤其在发电机组的电动给水泵系统容量配置为3X 35％容量时在发电机组高负荷发电运行时(机组75％以上发电负荷做工时)电动给水泵系统不具备备用安全泵的功能，极大的危害了整个电厂的生产运行。同样的在3X50％容量的配置下也存在同样问题。
发明内容
为了改善上述问题，本发明的目的在于提供一种电动给水泵分系统及其构成的电动给水泵系统。
为了实现上述目的，本发明采用的技术方案如下：
电动给水泵分系统，包括变频器、给水泵、电动机、齿轮箱、前置泵；
所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接。
进一步地，本发明还包括通过电缆和控缆与变频器连接，且用于控制电动 给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统。
电动给水泵分系统，包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接。
进一步地，还包括通过电缆和控缆分别与变频器和独立电动机连接，且用于控制电动给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统。
电动给水泵系统，包括三个分系统；第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；
第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；
第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述电动机通过联轴器与液力耦合器连接；所述液力耦合器通过联轴器与给水泵连接；所述电动机还通过联轴器与前置泵连接。
进一步地，本发明还包括用于控制电动给水泵系统和为电动给水泵系统提供电源和信号的综合控制和电源系统；
所述综合控制和电源系统通过电缆和控缆与第一分系统和第二分系统的变频器连接；所述控制系统还通过电缆和控缆与第三分系统的液力耦合器和电动 机连接。
电动给水泵系统，包括三个分系统；
第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述电动机通过联轴器与液力耦合器连接；所述液力耦合器通过联轴器与给水泵连接；所述电动机还通过联轴器与前置泵连接。
进一步地，还包括用于控制电动给水泵系统和为电动给水泵系统提供电源和控制信号的综合控制和电源系统；
所述综合控制和电源系统通过电缆和控缆与第一分系统和第二分系统的变频器和独立电动机连接；所述控制系统还通过电缆和控缆与第三分系统的液力耦合器和电动机连接。
本发明与现有技术相比，具有以下优点及有益效果：
本发明不但做工效率大大提高，而且直接降低了做工时的自身能量消耗，极大的减少了启动电机时对电厂本身电力供应系统的危害性和破坏性，同时直接减少了日常检修和维护成本的支出。
附图说明
图1为本发明-实施例1的系统框图。
图2为本发明-实施例2的系统框图。
图3为本发明-实施例3的系统框图。
图4为本发明-实施例4的系统框图。
图5为本发明中变频器和齿轮箱相结合后效率曲线与现有技术中液力耦合器效率曲线的对比图。
具体实施方式
下面结合附图和实施例对本发明作进一步说明，本发明的实施方式包括但不限于下列实施例。
实施例1
如图1、5所示，电动给水泵分系统，包括变频器、给水泵、电动机、齿轮箱、前置泵；所述电动机分别与变频器、齿轮箱、前置泵相连；所述给水泵与齿轮箱相连。
具体地，本发明还包括通过电缆与变频器连接，且用于控制电动给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统。本实施例通过综合控制和电源系统以锅炉系统运行的参数，综合分析和计算当前的供水需求数值并转化成控制指令后分配到每个电动给水泵分系统，并提供做工电源，合理的指挥电动给水泵分系统的做工模式和最佳最安全的控制方式。
具体地，所述变频器通过电缆与所述电动机连接用于控制输出电力至所述电动机做工；所述电动机通过联轴器与所述齿轮箱连接用于将动力输出至所述齿轮箱；所述齿轮箱通过联轴器与所述给水泵连接用于将扭矩传导至所述给水泵做工；所述电动机通过联轴器再与所述前置泵连接用于将扭矩传导至所述前置泵；所述前置泵在电动机驱动下将除氧器提供的除氧水加压后输送到给水泵， 给水泵再次将除氧水加压后输送至锅炉。
本实施例不但做工效率大大提高，而且直接降低了做工时的自身能量消耗，极大的减少了启动电机时对电厂本身电力供应系统的危害性和破坏性，同时直接减少了日常检修和维护成本的支出。
实施例2
如图2所示，本实施例与实施例1的区别在于，包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
还包括通过电缆和控缆分别与变频器和独立电动机连接，且用于控制电动给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统
通过该设置，增加了一台独立电动机与独立后的前置泵单独建立连接而获得扭矩的动力，此种单独拖动的前置泵保留了输水管道向给水泵供应水源。
实施例3
如图3、5所示，电动给水泵系统，包括三个分系统；
第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述电动机分别与变频器、齿轮箱、前置泵相连；所述给水泵与齿轮箱相连；
第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述电动机分别与变频器、齿轮箱、前置泵相连；所述给水泵与齿轮箱相连；
第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述给水泵、液力耦合器、电动机、前置泵均通过联轴器依次相连。
具体地，本发明还包括用于控制电动给水泵系统和为电动给水泵系统提供 电源和控制信号的综合控制和电源系统；
所述综合控制和电源系统通过电缆与第一分系统和第二分系统的变频器连接；所述控制系统还通过电缆和控缆与第三分系统的液力耦合器和电动机连接。
本实施例通过在日常生产中采集锅炉系统的参数，综合分析和计算当前的供水需求数值并转化成控制指令后合理分配给每个分系统中去，并提供做工电源，合理指挥三个分系统的不同做工状态来达到最佳的做工模式和最安全的控制方式。
具体地，第一分系统和第二系统的结构相同：所述综合控制和电源系统通过动力电缆和控制电缆与所述变频器连接实现电源提供和控制输出。所述变频器通过电缆与所述电动机连接用于控制输出电力至所述电动机做工；所述电动机通过联轴器与所述齿轮箱连接用于将动力输出至所述齿轮箱；所述齿轮箱通过联轴器与所述给水泵连接用于将扭矩传导至所述给水泵做工；所述电动机通过联轴器再与所述前置泵连接用于将扭矩传导至所述前置泵；所述前置泵在电动机驱动下将除氧器提供的除氧水加压后输送到给水泵，给水泵再次将除氧水加压后输送至锅炉。
第三分系统的具体结构如下：所述综合控制和电源系统通过控制电缆和动力电缆与所述的电动机连接来实现做工；所述电动机通过联轴器与所述液力耦合器连接用于将扭矩输出至所述液力耦合器；所述液力耦合器通过联轴器与所述给水泵连接用于将扭矩传导至所述给水泵；所述电动机通过联轴器再与所述前置泵连接用于将扭矩传导至所述前置泵；所述前置泵在电动机驱动下将除氧器提供的除氧水加压后输送到给水泵，给水泵再次将除氧水加压后输送至锅炉。所述综合控制和电源系统通过控制电缆和动力电缆与第三分系统中的液力耦合器连接以实现控制所述液力耦合器内部的勺管位置开度的大小以实现所述液力 耦合器的备用状态和各种做工状态。
本发明通过采用综合控制和电源系统分别向锅炉系统内三个电动给水泵分系统来提供电源和输出信号做工，以实现最高效率的做工，特别是所述综合控制和电源系统可以直接来控制第一分系统和第二分系统中各自的变频器并驱动电动机，电动机通过齿轮箱驱动给水泵来实现电动给水泵系统的新结构，完全替代了传统的“液力耦合器”传动模式，提高了机组的运行效率和安全系数，大大降低了日常检修和维护成本，降低了能耗。
所述第三分系统虽然保留传统的“液力耦合器”的传动变速模式，但是在整个锅炉系统中起到备用系统的功能，全系统在日常做工中，在综合控制和电源系统的控制下，第三分系统只是作为备用状态和紧急使用。
值得说明的是，本实施例通过综合控制和电源系统集中对三个电动给水泵分系统进行做工控制，有效的提供了整个给水泵系统的安全性和可控性，并且结合第一分系统和第二分系统，采用变频器来驱动电动机并通过齿轮箱驱动给水泵高效做工。这种集中控制的模式相比现有技术的分散控制单个独立的电动给水泵系统提高了安全性和效率，提高了锅炉系统的控制能力和水平。在第一分系统和第二分系统中完全更换了传统的旧结构里面的“液力耦合器”这一传动变速方式，不但做工效率大大地提高，而且直接降低了做功时的自身耗能量，极大地减少了启动电机时对电厂本身电力供应系统的危害性和破坏性，同时直接减少了日常检修和维护成本的支出。
实施例4
如图4所示，本实施例与实施例3的区别在于，包括三个分系统；第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连 接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前单独置泵连接；
第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述电动机通过联轴器与液力耦合器连接；所述液力耦合器通过联轴器与给水泵连接；所述电动机还通过联轴器与前置泵连接；
还包括用于控制电动给水泵系统和为电动给水泵系统提供电源和控制信号的综合控制和电源系统；
所述综合控制和电源系统通过电缆与第一分系统和第二分系统的变频器和独立电动机连接；所述控制系统还通过电缆与第三分系统的液力耦合器和电动机连接。
通过该设置，增加了一台独立电动机与独立后的前置泵单独建立连接而获得扭矩的动力，此种单独拖动的前置泵保留了输水管道向给水泵供应水源。
按照上述实施例，便可很好地实现本发明。值得说明的是，基于上述结构设计的前提下，为解决同样的技术问题，即使在本发明上做出的一些无实质性的改动或润色，所采用的技术方案的实质仍然与本发明一样，故其也应当在本发明的保护范围内。

Claims (8)

  1. 电动给水泵分系统，其特征在于，包括变频器、给水泵、电动机、齿轮箱、前置泵；
    所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接。
  2. 根据权利要求1所述的电动给水泵分系统，其特征在于，还包括通过电缆和控缆与变频器连接，且用于控制电动给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统。
  3. 电动给水泵分系统，其特征在于，包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
    所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接。
  4. 根据权利要求3所述的电动给水泵分系统，其特征在于，还包括通过电缆和控缆分别与变频器和独立电动机连接，且用于控制电动给水泵分系统和为电动给水泵分系统提供电源和信号的综合控制和电源系统。
  5. 电动给水泵系统，其特征在于，包括三个分系统；
    第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；
    第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵；所述变频器通过电缆与电动机连接；所述电动机通过联轴器与前置泵连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；
    第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述电动机通过联轴器与液力耦合器连接；所述液力耦合器通过联轴器与给水泵连接；所述电动机还通过联轴器与前置泵连接。
  6. 根据权利要求5所述的电动给水泵系统，其特征在于，还包括用于控制电动给水泵系统和为电动给水泵系统提供电源和控制信号的综合控制和电源系统；
    所述综合控制和电源系统通过电缆和控缆与第一分系统和第二分系统的变频器连接；所述控制系统还通过电缆和控缆与第三分系统的液力耦合器和电动机连接。
  7. 电动给水泵系统，其特征在于，包括三个分系统；
    第一分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
    所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
    第二分系统包括变频器、给水泵、电动机、齿轮箱、前置泵、独立电动机；
    所述变频器通过电缆与电动机连接；所述电动机还通过联轴器与齿轮箱连接；所述齿轮箱还通过联轴器与给水泵连接；所述独立电动机通过联轴器与前置泵单独连接；
    第三分系统包括电动机、液力耦合器、给水泵、前置泵；所述电动机通过联轴器与液力耦合器连接；所述液力耦合器通过联轴器与给水泵连接；所述电动机还通过联轴器与前置泵连接。
  8. 根据权利要求7所述的电动给水泵系统，其特征在于，还包括用于控制电动给水泵系统和为电动给水泵系统提供电源和控制信号的综合控制和电源系 统；
    所述综合控制和电源系统通过电缆和控缆与第一分系统和第二分系统的变频器和独立电动机连接；所述控制系统还通过电缆和控缆与第三分系统的液力耦合器和电动机连接。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113431639A (zh) * 2021-07-28 2021-09-24 华能秦煤瑞金发电有限责任公司 一种新型给水泵调速装置及方法
CN116163938A (zh) * 2023-01-30 2023-05-26 神华神东电力有限责任公司 给水泵运行切换方法、装置、系统及存储介质

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106150964A (zh) * 2016-08-25 2016-11-23 俞朝富 电动给水泵分系统及其构成的电动给水泵系统
CN108019344B (zh) * 2017-12-04 2020-06-12 广西电网有限责任公司电力科学研究院 一种电动给水泵组效率测试方法
CN108716462B (zh) * 2018-04-13 2020-07-28 广东核电合营有限公司 一种用于核电给水泵组的速度保持装置及系统
CN111794935A (zh) * 2020-08-13 2020-10-20 刘亚辉 汽动给水泵系统拆分成小汽轮机发电系统和全变频电动给水泵系统的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405612A (zh) * 2014-11-14 2015-03-11 神华集团有限责任公司 锅炉及其给水泵系统
CN105114939A (zh) * 2015-04-29 2015-12-02 大唐桂冠合山发电有限公司 一种用于火电厂锅炉的给水调节系统
CN205117755U (zh) * 2015-11-18 2016-03-30 亿海天成(北京)科技有限公司 一种火电厂电动给水泵变频节能系统
CN205383051U (zh) * 2015-12-30 2016-07-13 俞朝富 火电厂电动给水泵系统
CN106150964A (zh) * 2016-08-25 2016-11-23 俞朝富 电动给水泵分系统及其构成的电动给水泵系统
CN205977582U (zh) * 2016-08-25 2017-02-22 俞朝富 电动给水泵分系统及其构成的电动给水泵系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8540493B2 (en) * 2003-12-08 2013-09-24 Sta-Rite Industries, Llc Pump control system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405612A (zh) * 2014-11-14 2015-03-11 神华集团有限责任公司 锅炉及其给水泵系统
CN105114939A (zh) * 2015-04-29 2015-12-02 大唐桂冠合山发电有限公司 一种用于火电厂锅炉的给水调节系统
CN205117755U (zh) * 2015-11-18 2016-03-30 亿海天成(北京)科技有限公司 一种火电厂电动给水泵变频节能系统
CN205383051U (zh) * 2015-12-30 2016-07-13 俞朝富 火电厂电动给水泵系统
CN106150964A (zh) * 2016-08-25 2016-11-23 俞朝富 电动给水泵分系统及其构成的电动给水泵系统
CN205977582U (zh) * 2016-08-25 2017-02-22 俞朝富 电动给水泵分系统及其构成的电动给水泵系统

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113431639A (zh) * 2021-07-28 2021-09-24 华能秦煤瑞金发电有限责任公司 一种新型给水泵调速装置及方法
CN113431639B (zh) * 2021-07-28 2023-09-29 华能秦煤瑞金发电有限责任公司 一种给水泵调速装置及方法
CN116163938A (zh) * 2023-01-30 2023-05-26 神华神东电力有限责任公司 给水泵运行切换方法、装置、系统及存储介质

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