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Energy-saving type water pump controlled in variable-frequency mode

A frequency conversion control, energy-saving technology, applied in the direction of pump control, liquid variable capacity machinery, machine/engine, etc., can solve the problems of unable to adapt to voltage, reduce work efficiency, unstable rural areas, etc., and achieve simple and reasonable structural design , extend the adaptation life, and protect the motor

Inactive Publication Date: 2015-05-13
界首市友谊水泵厂
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AI Technical Summary

Problems solved by technology

[0004] The water pump in the prior art has only one working current, which cannot adapt to the rural areas where the voltage is not stable, which reduces the actual working efficiency

Method used

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  • Energy-saving type water pump controlled in variable-frequency mode

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0016] Such as figure 1 As shown, an energy-saving water pump controlled by frequency conversion includes a pump body 1 and a motor 2 connected to the pump body 1. A casing 3 is installed on the casing of the pump body 1, and a frequency converter is arranged in the casing 3 (Fig. Not marked in ), the frequency converter is connected to the motor 2, the external voltage enters the motor 2 through the frequency converter, and the external voltage is adjusted through the frequency converter, and then the working current of the motor 2 is changed to adapt to the external voltage change; the frequency converter is connected to the motor through a high-frequency cable The high-frequency cable includes a coating insulation layer and an inner conductor...

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Abstract

An energy-saving type water pump controlled in a variable-frequency mode comprises a pump body and a motor connected with the pump body. A box body is installed on a shell of the pump body. A frequency converter is arranged in the box body and connected with the motor. External voltage enters the motor through the frequency converter and is regulated through the frequency converter, and therefore the work current of the motor is changed to adapt to the changes of the external voltage. The frequency converter is electrically connected with the motor through a high-frequency cable. The high-frequency cable comprises a wrapping insulating layer and an inner conductor located in the wrapping insulating layer. The energy-saving type water pump is simple and reasonable in structural design, the variable-frequency control technology is adopted, the energy-saving type water pump is suitable for voltage-unstable working environments in rural areas, the motor can be effectively protected, and the service life of the water pump is prolonged.

Description

technical field [0001] The invention belongs to the technical field of water pumps, in particular to energy-saving water pumps controlled by frequency conversion. Background technique [0002] Water is the root of human existence, and water is the lifeblood of agriculture. my country is a country with many people, little land, water shortage and frequent natural disasters. Agricultural irrigation water accounts for more than 80% of the country's total water use, while China's total water resources account for about 7% of the global total, and the per capita water resources are only a quarter of the world's average level. one of the countries. China needs to use 7% of the world's water to maintain the production and life of 22% of the population. Among the 517 cities in the country, more than 300 cities lack water. my country is also a large agricultural country, and agriculture is a large water user. The annual agricultural irrigation water consumption is about 350 billio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 段兆友
Owner 界首市友谊水泵厂
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