CN110242590A - An Intelligent Circulation Pump - Google Patents
An Intelligent Circulation Pump Download PDFInfo
- Publication number
- CN110242590A CN110242590A CN201910652807.6A CN201910652807A CN110242590A CN 110242590 A CN110242590 A CN 110242590A CN 201910652807 A CN201910652807 A CN 201910652807A CN 110242590 A CN110242590 A CN 110242590A
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- pump
- motor
- frequency converter
- pump housing
- controller
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- 238000004891 communication Methods 0.000 claims description 10
- 238000013507 mapping Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/301—Pressure
- F05D2270/3013—Outlet pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
Description
技术领域technical field
本发明涉及离心泵技术领域，特别是涉及一种智能循环泵。The invention relates to the technical field of centrifugal pumps, in particular to an intelligent circulation pump.
背景技术Background technique
离心泵变频调速是目前水泵节能运行的优化方案，在工业和民用领域都得到了广泛的应用。绝大部分的应用中，变频器，控制器和电机是独立的，控制柜体积较大。在循环系统中，一般采用恒压或者恒压差控制，而系统中的阻力随着流量的减小而减小，水泵出口压力可以降低，因此采用恒压或者恒压差控制将导致不必要的能耗。Centrifugal pump frequency conversion speed regulation is the optimal solution for water pump energy-saving operation at present, and it has been widely used in industrial and civil fields. In most applications, the inverter, controller and motor are independent, and the control cabinet is relatively large. In the circulation system, constant pressure or constant pressure difference control is generally used, and the resistance in the system decreases with the decrease of the flow rate, and the outlet pressure of the water pump can be reduced, so the use of constant pressure or constant pressure difference control will lead to unnecessary energy consumption.
发明内容Contents of the invention
本发明所要解决的技术问题是提供一种智能循环泵，降低系统能耗。The technical problem to be solved by the present invention is to provide an intelligent circulation pump to reduce system energy consumption.
本发明解决其技术问题所采用的技术方案是：提供一种智能循环泵，包括电机、变频器、泵体和控制器，所述电机、变频器和控制器集成一体形成电机组件，所述电机组件通过机架置于泵体上，所述泵体内容置有叶轮，所述叶轮与电机的输出轴相连；所述泵体的出口法兰处设置有压力传感器；所述控制器内设置有存储器和数据处理器，所述存储器用于存储泵的预测控制模型，所述数据处理器根据压力传感器的检测到的压力信号与所述存储器中的预测控制模型进行比较，并根据比较结果调节所述变频器的运行参数。The technical solution adopted by the present invention to solve the technical problem is to provide an intelligent circulation pump, including a motor, a frequency converter, a pump body and a controller, the motor, the frequency converter and the controller are integrated to form a motor assembly, and the motor The components are placed on the pump body through the frame, and the impeller is placed in the pump body, and the impeller is connected with the output shaft of the motor; a pressure sensor is installed at the outlet flange of the pump body; a pressure sensor is installed in the controller. A memory and a data processor, the memory is used to store the predictive control model of the pump, the data processor compares the pressure signal detected by the pressure sensor with the predictive control model in the memory, and adjusts the pump according to the comparison result Describe the operating parameters of the inverter.
所述预测控制模型为智能泵的时间、流量和压力的对应关系表。The predictive control model is a correspondence table of time, flow and pressure of the intelligent pump.
所述泵体上设置有入口和出口，所述入口和出口位于同一直线上。The pump body is provided with an inlet and an outlet, and the inlet and outlet are located on the same straight line.
所述叶轮通过螺母与电机的输出轴相连。The impeller is connected with the output shaft of the motor through a nut.
所述机架上设置有用于密封电机的输出轴与机架的机械密封。The frame is provided with a mechanical seal for sealing the output shaft of the motor and the frame.
所述控制器还设置有蓝牙通讯模块、RS485通讯模块和/或以太网通讯模块。The controller is also provided with a Bluetooth communication module, an RS485 communication module and/or an Ethernet communication module.
有益效果Beneficial effect
由于采用了上述的技术方案，本发明与现有技术相比，具有以下的优点和积极效果：本发明的变频器、电机和控制器集成一体，减小了控制柜的体积，系统更加紧凑；另一方面，采用水泵预测控制模型计算水泵运行参数，智能泵出口压力或者压差随着流量的变化而变化，降低了运行能耗，从而降低系统的运行成本。Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: the frequency converter, motor and controller of the present invention are integrated, which reduces the volume of the control cabinet and makes the system more compact; On the other hand, the water pump predictive control model is used to calculate the water pump operating parameters, and the outlet pressure or pressure difference of the intelligent pump changes with the flow rate, which reduces the energy consumption of the operation, thereby reducing the operating cost of the system.
附图说明Description of drawings
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式Detailed ways
下面结合具体实施例，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
本发明的实施方式涉及一种智能循环泵，如图1所示，包括变频器1，电机2，支架3，机械密封4，叶轮5，泵体6，螺母7，轴8、控制器9和压力传感器10。具体地，变频器1，电机2和控制器9集成为一体构成电机组件。轴8为电机轴和泵轴集成一体的结构。叶轮5容置在泵体6内通过螺母7固定在轴8上，泵体6的出口法兰处设置有压力传感器10。机械密封4装配在支架3上密封旋转的轴8与固定的支架3。整个电机组件通过支架3置于泵体6上。其中，所述变频器1用于改变输出电源的频率；所述电机2为变频电机；所述控制器9与压力传感器10相连，根据压力传感器10检测到的压力值控制所述变频器1的运行状态。The embodiment of the present invention relates to an intelligent circulating pump, as shown in Figure 1, including a frequency converter 1, a motor 2, a bracket 3, a mechanical seal 4, an impeller 5, a pump body 6, a nut 7, a shaft 8, a controller 9 and pressure sensor 10. Specifically, the frequency converter 1, the motor 2 and the controller 9 are integrated to form a motor assembly. The shaft 8 is a structure in which the motor shaft and the pump shaft are integrated. The impeller 5 is accommodated in the pump body 6 and fixed on the shaft 8 through the nut 7 , and the outlet flange of the pump body 6 is provided with a pressure sensor 10 . The mechanical seal 4 is assembled on the support 3 to seal the rotating shaft 8 and the fixed support 3 . The entire motor assembly is placed on the pump body 6 through the bracket 3 . Wherein, the frequency converter 1 is used to change the frequency of the output power; the motor 2 is a variable frequency motor; the controller 9 is connected to the pressure sensor 10, and controls the frequency converter 1 according to the pressure value detected by the pressure sensor 10. Operating status.
泵体6上设置了入口和出口，入口和出口在同一直线上。控制器9设置了存储器和数据处理器。存储器中存储了智能泵的预测控制模型，该预测控制模型为智能泵的时间、流量和压力的对应关系表，如此根据智能泵的流量数据可以得到智能泵最佳能耗时的出口处的目标压力值。该预测控制模型可以通过对智能泵运行时的各个参数预先获得。数据处理器根据压力传感器10的反馈信号，将其与预测控制模型中的目标压力值进行比较，根据比较结果确定变频器优化运行参数。循环系统需要的流量一般随着季节的变化，节假日的变化和一天24小时的时刻变化而变化，因此在不同时刻需要的流量都是不一样的，智能泵根据预测控制模型可以得到系统某一时刻需要的流量，数据处理器调用预测控制模型可以由需要的流量确定需要的运行压力，变频器1根据运行的压力和当前压力的关系升高或者降低电机2的转速。同时数据处理器具有自学习功能，可以根据历史数据进行预测控制。控制器设置了丰富的通讯功能，包括蓝牙通讯，RS485通讯，以太网通讯。An inlet and an outlet are arranged on the pump body 6, and the inlet and the outlet are on the same straight line. The controller 9 is provided with a memory and a data processor. The predictive control model of the smart pump is stored in the memory. The predictive control model is the corresponding relationship table of the time, flow and pressure of the smart pump, so that the target at the outlet of the smart pump at the best energy consumption can be obtained according to the flow data of the smart pump. Pressure value. The predictive control model can be pre-obtained through the various parameters of the intelligent pump operation. The data processor compares the feedback signal of the pressure sensor 10 with the target pressure value in the predictive control model, and determines the optimal operating parameters of the frequency converter according to the comparison result. The flow required by the circulation system generally changes with the changes of seasons, holidays and 24 hours a day, so the flow required at different times is different. The intelligent pump can get the system at a certain time according to the predictive control model. The required flow, the data processor calls the predictive control model to determine the required operating pressure from the required flow, and the frequency converter 1 increases or decreases the speed of the motor 2 according to the relationship between the operating pressure and the current pressure. At the same time, the data processor has a self-learning function and can perform predictive control based on historical data. The controller is equipped with rich communication functions, including Bluetooth communication, RS485 communication, and Ethernet communication.
本发明的工作原理如下：根据系统的应用要求，设定智能泵的初始出口压力值，变频器1启动电机2以指定的转速工作，电机2的转子旋转带动轴8旋转，叶轮5随着轴8一起旋转，把动能传递给泵体6中的水，水的势能增加，压力升高。如果压力传感器10反馈的信号大于系统设定的压力值，变频器1降低输出频率，电机2降低转速，如果压力传感器10反馈的信号低于设定的压力值，变频器1升高输出频率，电机2转速升高，直到压力稳定在设定值允许的压差范围内，智能泵稳定运行。当时间发生变化后，系统的需求也发生变化，数据处理器根据预测控制模型可以得到该时间下系统需要的流量，由需要的流量可以确定需要的运行压力，数据处理器根据压力传感器10反馈的信号将其与需要的运行压力进行比较，并根据比较结果调节变频器1，变频器1重新调节电机2的转速，建立新的平衡，由于系统压力随流量的变化而变化，系统需要多少压力补多少，避免了不必要能耗的消耗，降低了系统运行成本。The working principle of the present invention is as follows: according to the application requirements of the system, the initial outlet pressure value of the intelligent pump is set, the frequency converter 1 starts the motor 2 to work at a specified speed, the rotor of the motor 2 rotates to drive the shaft 8 to rotate, and the impeller 5 follows the shaft 8 rotate together, the kinetic energy is transferred to the water in the pump body 6, the potential energy of the water increases, and the pressure rises. If the signal fed back by the pressure sensor 10 is greater than the pressure value set by the system, the inverter 1 reduces the output frequency, and the motor 2 reduces the speed. If the signal fed back by the pressure sensor 10 is lower than the set pressure value, the inverter 1 increases the output frequency. The speed of motor 2 increases until the pressure stabilizes within the allowable differential pressure range of the set value, and the smart pump runs stably. When the time changes, the demand of the system also changes. The data processor can obtain the flow required by the system at this time according to the predictive control model, and the required operating pressure can be determined by the required flow. The data processor can use the feedback from the pressure sensor 10 The signal compares it with the required operating pressure, and adjusts the frequency converter 1 according to the comparison result. The frequency converter 1 readjusts the speed of the motor 2 to establish a new balance. Since the system pressure changes with the flow rate, how much pressure compensation the system needs How much, avoiding unnecessary energy consumption and reducing system operating costs.
本发明的变频器、电机和控制器集成一体，减小了控制柜的体积，系统更加紧凑；另一方面，采用水泵预测控制模型计算水泵运行参数，智能泵出口压力或者压差随着流量的变化而变化，降低了运行能耗，从而降低系统的运行成本。The frequency converter, motor and controller of the present invention are integrated, which reduces the volume of the control cabinet and makes the system more compact; on the other hand, the water pump predictive control model is used to calculate the operating parameters of the water pump, and the outlet pressure or pressure difference of the intelligent pump changes with the flow rate. Changes and changes, reducing the operating energy consumption, thereby reducing the operating cost of the system.
Claims (6)
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| CN201910652807.6A CN110242590A (en) | 2019-07-19 | 2019-07-19 | An Intelligent Circulation Pump |
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| CN201910652807.6A CN110242590A (en) | 2019-07-19 | 2019-07-19 | An Intelligent Circulation Pump |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530834A (en) * | 2021-06-09 | 2021-10-22 | 四机赛瓦石油钻采设备有限公司 | Intelligent integrated centrifugal pump |
| CN114607658A (en) * | 2020-11-25 | 2022-06-10 | 格兰富控股联合股份公司 | Hydraulic system |
| CN115388014A (en) * | 2022-07-12 | 2022-11-25 | 青岛三利智能动力有限公司 | Intelligent double-drive pump with flow detection function and water supply system |
| CN116576124A (en) * | 2023-03-30 | 2023-08-11 | 利欧集团浙江泵业有限公司 | A multi-pump system for renovation of old residential quarters |
| CN117536892A (en) * | 2024-01-09 | 2024-02-09 | 江苏新世界泵业有限公司 | High protection type elbow formula fluorine material axial-flow pump |
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Application publication date: 20190917 |