CN104612949B - Adopt the energy-saving water pump of VFC - Google Patents

Abstract

A kind of energy-saving water pump that adopts VFC, the motor that comprises the pump housing and be connected with the pump housing, one casing is installed on the shell of the described pump housing, in described casing, be provided with a frequency converter, described frequency converter is connected with motor, and external voltage enters motor by frequency converter, regulates external voltage by frequency converter, and then change the operating current of motor, adapt to external voltage and change; Described frequency converter is by being electrically connected between high frequency cable and motor, and described high frequency cable comprises coated insulation layer and is positioned at the inner wire of coated insulation layer. Structural design advantages of simple of the present invention, adopts frequency conversion control technique, adapts to the working environment of rural area voltage instability, can effectively protect motor, extends water pump and adapts to the time limit.

Description

Adopt the energy-saving water pump of VFC

Technical field

The invention belongs to pump technology field, relate in particular to the energy-saving water pump that adopts VFC.

Background technology

Water is the root of human survival, and water is agriculture lifeblood. China be people many, less, lack of water,The country of frequent natural calamity. Agricultural irrigation water accounts for the more than 80% of national water total amount, and China WaterTotal resources accounts for 7% of global total amount, and water resource is 1/4th of world's per capita share per capita, quiltThe United Nations classifies one of 13 lack of water countries as. China with 7% water in the world maintain 22% population production andLife. In 517 cities, the whole nation, have more than 300 urban water shortage, China is again a large agricultural country, agricultureIndustry is water rich and influential family, annual agricultural irrigation water amount approximately 3500 billion cubic meters, and due to water resource deficiency, IThe annual area suffered from drought of state's agricultural reaches hundred million mu of 2-3, and grain reduces approximately 2.5 hundred million kilograms, and industrial output value reduces 1200Hundred million yuan. Along with China's economy develops rapidly, water resources problems is day by day serious.

Jet pump is to utilize the transformation of fluid flow energy to reach the object of conveying, utilizes it can conveying liquidBody, also can carry gas. According to working fluid used, be generally divided into steam jet pump and water stream injection pumpTwo classes, jet pump simple structure, easy to use. Water stream injection pump is divided into again Ordinary Centrifugal Pumps and Self-sucking sprayPenetrate pump, Ordinary Centrifugal Pumps, if suck liquid level under impeller, should pour water when startup in advance, very inconvenient.For water in pump, suction line import need to fill bottom valve, and when pump work, bottom valve causes very large waterpowerLoss. Self-priming injection pump does not need to pour water exactly before startup, through short-time running, by pump itselfEffect, can drink up water, drops into and normally works.

Water pump of the prior art only has a kind of operating current, cannot adapt to the ground, rural area of voltage less stableDistrict, has reduced actual operating efficiency.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of and forms simply, the employing that operating cost is lowThe energy-saving water pump of VFC.

Technical problem to be solved by this invention realizes by the following technical solutions:

Adopt an energy-saving water pump for VFC, the motor that comprises the pump housing and be connected with the pump housing, described inOne casing is installed on the shell of the pump housing, in described casing, is provided with a frequency converter, described frequency converter and electricityMachine connects, and external voltage enters motor by frequency converter, regulates external voltage by frequency converter, and then comesChange the operating current of motor, adapt to external voltage and change; Described frequency converter is by high frequency cable and motorBetween electrical connection, described high frequency cable comprises coated insulation layer and is positioned at the inner wire of coated insulation layer,Described coated insulation layer is to be extruded and formed by the component preparation of following parts by weight: 100 parts of epoxy resin, receiveRice 5 parts, carborundum, 10 parts of nano aluminium oxides, 2 parts, curing agent, 3 parts of shrinking agents, 4 parts of linear polyethylenes,5 parts of nitrogen-containing organic compounds, 10 parts, glass fibre, 5 parts of sepiolite cashmeres, 2 parts of modified kaolins, carbon fiber10 parts, 5 parts, 3 parts of siloxanes, 1 part of emulsifying agent and amino resins;

Above-mentioned modified kaolin is to be made up of the component of following parts by weight: 20 parts of calcined kaolins, graphite2 parts, alkene, 2 parts of quartz sands, 2 parts of citric acids, 2 parts of fisetins, 5 parts of tealeaves alkaloids, calcium lignosulfonate0.5 part, 0.5 part of lignocellulosic, 0.5 part of rosin soap; Its preparation method is as follows:

1) by calcined kaolin and quartz sand taking absolute ethyl alcohol as decentralized medium, the wherein matter of material and ethanolAmount is than being 1:15, ultrasonic dispersion 1 hour on supersonic cleaning machine;

2) material through ultrasonic dispersion is put into nylon ball grinder, then add Graphene, fisetin, woodQuality sulfoacid calcium, lignocellulosic and rosin soap, taking agate ball as abrading-ball, ball material mass ratio is 7:1,Be under the condition of 150 revs/min at rotating speed, continuous ball milling 4 hours;

3) powder complete ball milling is poured in powder dish together with agate abrading-ball, at 80 DEG C, is dried,The powder of drying is sieved, take out agate abrading-ball, grind, until without larger reunion, so far,The preparation of mixed powder is complete;

4) by step 3) in mixed material mix with citric acid, tealeaves alkaloid, at 50-70 DEG CLow-temperature bake 2-3 hour under environment,, takes out lower than 20% to moisture, is ground into powder.

The invention has the beneficial effects as follows: structural design advantages of simple of the present invention, adopt frequency conversion control technique,Adapt to the working environment of rural area voltage instability, can effectively protect motor, extend water pump and adapt to the time limit.

Brief description of the drawings

Fig. 1 is outline drawing of the present invention.

Detailed description of the invention:

For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understandSeparate, below in conjunction with concrete diagram, further set forth the present invention.

As shown in Figure 1, a kind of energy-saving water pump that adopts VFC, comprises the pump housing 1 and is connected with the pump housing 1Motor 2, a casing 3 is installed on the shell of the pump housing 1, in casing 3, be provided with a frequency converter (in figure notIndicate), frequency converter is connected with motor 2, and external voltage enters motor 2 by frequency converter, passes through frequency converterRegulate external voltage, and then change the operating current of motor 2, adapt to external voltage and change; Frequency converter is logicalCross between high frequency cable and motor and be electrically connected, described high frequency cable comprises coated insulation layer and is positioned at absolutely coatedInner wire in edge layer, described coated insulation layer is to be extruded and formed by the component preparation of following parts by weight:100 parts of epoxy resin, 5 parts of nanometer silicon carbides, 10 parts of nano aluminium oxides, 2 parts, curing agent, shrinking agent 3Part, 4 parts of linear polyethylenes, 5 parts of nitrogen-containing organic compounds, 10 parts, glass fibre, 5 parts of sepiolite cashmeres, change10 parts, 2 parts of kaolin of property, 5 parts, carbon fiber, 3 parts of siloxanes, 1 part of emulsifying agent and amino resins;

Above-mentioned modified kaolin is to be made up of the component of following parts by weight: 20 parts of calcined kaolins, graphite2 parts, alkene, 2 parts of quartz sands, 2 parts of citric acids, 2 parts of fisetins, 5 parts of tealeaves alkaloids, calcium lignosulfonate0.5 part, 0.5 part of lignocellulosic, 0.5 part of rosin soap; Its preparation method is as follows:

1) by calcined kaolin and quartz sand taking absolute ethyl alcohol as decentralized medium, the wherein matter of material and ethanolAmount is than being 1:15, ultrasonic dispersion 1 hour on supersonic cleaning machine;

2) material through ultrasonic dispersion is put into nylon ball grinder, then add Graphene, fisetin, woodQuality sulfoacid calcium, lignocellulosic and rosin soap, taking agate ball as abrading-ball, ball material mass ratio is 7:1,Be under the condition of 150 revs/min at rotating speed, continuous ball milling 4 hours;

3) powder complete ball milling is poured in powder dish together with agate abrading-ball, at 80 DEG C, is dried,The powder of drying is sieved, take out agate abrading-ball, grind, until without larger reunion, so far,The preparation of mixed powder is complete;

4) by step 3) in mixed material mix with citric acid, tealeaves alkaloid, at 50-70 DEG CLow-temperature bake 2-3 hour under environment,, takes out lower than 20% to moisture, is ground into powder.

More than show and described general principle of the present invention and principal character and advantage of the present invention. One's own professionThe technical staff of industry should understand, and the present invention is not restricted to the described embodiments, above-described embodiment and explanationThat in book, describes just illustrates principle of the present invention, without departing from the spirit and scope of the present invention,The present invention also has various changes and modifications, and these changes and improvements all fall into claimed model of the present inventionIn enclosing. The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (1)

1. adopt an energy-saving water pump for VFC, the motor that comprises the pump housing and be connected with the pump housing, instituteState on the shell of the pump housing casing be installed, in described casing, be provided with a frequency converter, described frequency converter withMotor connects, and external voltage enters motor by frequency converter, regulates external voltage by frequency converter, and thenChange the operating current of motor, adapt to external voltage and change; Described frequency converter is by high frequency cable and electricityBetween machine, be electrically connected, it is characterized in that, described high frequency cable comprises coated insulation layer and is positioned at coated insulationInner wire in layer, described coated insulation layer is to be extruded and formed by the component preparation of following parts by weight: ring100 parts of epoxy resins, 5 parts of nanometer silicon carbides, 10 parts of nano aluminium oxides, 2 parts, curing agent, 3 parts of shrinking agents,4 parts of linear polyethylenes, 5 parts of nitrogen-containing organic compounds, 10 parts, glass fibre, 5 parts of sepiolite cashmeres, modification are high10 parts, 2 parts, ridge soil, 5 parts, carbon fiber, 3 parts of siloxanes, 1 part of emulsifying agent and amino resins;

Above-mentioned modified kaolin is to be made up of the component of following parts by weight: 20 parts of calcined kaolins, graphite2 parts, alkene, 2 parts of quartz sands, 2 parts of citric acids, 2 parts of fisetins, 5 parts of tealeaves alkaloids, calcium lignosulfonate0.5 part, 0.5 part of lignocellulosic, 0.5 part of rosin soap;

The preparation method of above-mentioned modified kaolin is as follows:

1) by calcined kaolin and quartz sand taking absolute ethyl alcohol as decentralized medium, the wherein matter of material and ethanolAmount is than being 1:15, ultrasonic dispersion 1 hour on supersonic cleaning machine;

2) material through ultrasonic dispersion is put into nylon ball grinder, then add Graphene, fisetin, woodQuality sulfoacid calcium, lignocellulosic and rosin soap, taking agate ball as abrading-ball, ball material mass ratio is 7:1,Be under the condition of 150 revs/min at rotating speed, continuous ball milling 4 hours;

3) powder complete ball milling is poured in powder dish together with agate abrading-ball, at 80 DEG C, is dried,The powder of drying is sieved, take out agate abrading-ball, grind, until without larger reunion, so far,The preparation of mixed powder is complete;

4) by step 3) in mixed material mix with citric acid, tealeaves alkaloid, at 50-70 DEG CLow-temperature bake 2-3 hour under environment,, takes out lower than 20% to moisture, is ground into powder.