CN101071952A

CN101071952A - Mining explosion-proof inverse charging equipment

Info

Publication number: CN101071952A
Application number: CNA2006100100274A
Authority: CN
Inventors: 刘峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-11
Filing date: 2006-05-11
Publication date: 2007-11-14

Abstract

One kind mineral explosion suppression inversion charging device used in the coal mine mine which include explosive gas atmosphere. Its electrical principle block diagram was showed by the attached figure. This invention has substituted for the traditional rectification transformer and the flat wave reactor with the high efficiency inversion. At present, it is more universal to use the 220V, 380V voltage rank high efficiency inversion in the industry, but to 660V power regarding in coal mine, the application of high efficiency inversion has many essential questions to be solved. The most essential question is the low cost and high performance. If does not count the cost, then this kind of inversion is also to be designed, but relatively to original traditional equipment, it is extremely difficult to not only reduce the cost but also improve the performance. But this invention has just solved this difficult problem, it has guaranteed the low cost and the high performance from the technology. This invention characteristic lies in: the high efficiency battery charger manufactured by high frequency contravariant technology was parked in explosion prevention shell, thus the mineral explosion suppression inversion charging device which conformed to the coal mine explosion prevention electric appliance standard was realized.

Description

Mining explosion-proof inverse charging equipment

One, application

The invention belongs to explosion-proof electric apparatus field under the coal mine.

Two, purposes

Mining explosion-proof inverse charging equipment is applicable to the occasion that contains explosive gas mixture under the coal mine, is the high-power special equipment for the electric haulage locomotive charge in batteries.

Three, existing product situation

At present, the like product that use the China's coal-mine down-hole all is the exploitation seventies in 20th century, and its volume is quite heavy, technology falls behind, and has not only wasted a large amount of steel and non-ferrous metal but also has wasted many energy, returning the transportation of going into the well and installing and bring difficulty.Huge volume also makes the construction area of down-hole charging chamber strengthen, mine cost cost up, and this present situation is the needs of incompatibility construction of modern mine.For many years, many specialized factories and scientific research institutions all are being engaged in the research that improves this equipment, but all do not obtain critical progress.

Four, characteristics of the present invention

Charging device of the present invention adopts state-of-the-art Semiconductor Converting Technology in the world today, broken through heavy technical barrier, solved the rectifying component problem of withstand voltage under the special voltage grade and other key issue under coal mine, made this equipment compare characteristics with existing equipment with highly significant:

1, volume weight significantly reduces.Existing equipment weight reaches 1900 kilograms by the different maximums of model, and minimum also has 800 kilograms.Neoteric charging device maximum also have only 150 kilograms, volume also reduces naturally significantly;

2, save a large amount of non-ferrous metals.New equipment has adopted advanced high-frequency inversion technology, has cancelled the rectifier transformer on the old equipment, has saved a large amount of copper cash and silicon steel sheet.Explosion-proof casing also dwindles greatly, has saved great deal of steel, and its cost is reduced, and has the very strong market competitiveness;

3, go into the well transportation and installation have been made things convenient for.Because dwindling greatly of volume solved coal miner transports large equipment in decades to the down-hole difficulty;

4, reduced energy consumption.The old relatively equipment of the energy consumption of new equipment approximately reduces by 20%;

5, the volume low capacity is big.Though the new equipment volume dwindles greatly, capacity does not really reduce.Electric locomotive to all size under the coal mine is all chargeable;

Five, principle brief introduction

The present invention is made of explosion-proof casing, three-phase rectifier, inverter, hf rectifier, controller and protective circuit, and principle as shown in Figure 1.The 660v three-phase alternating voltage becomes direct current after the high power contravariant device becomes high frequency through three phase rectifier under the coal mine, becomes the charging of direct current accumulators group by hf rectifier again.

And the similar charging device that uses under the present coal mine mainly is made of explosion-proof casing, rectifier transformer, rectifier, smoothing reactor etc.Principle as shown in Figure 2.Its shortcoming is that volume is big, energy consumption is high, the cost height.

The present invention has overcome the defective of traditional same category of device, rectifier transformer (300 kilograms of silicon steel sheets bulky, that involve great expense have been cancelled, 200 kilograms of copper cash) and smoothing reactor (50 kilograms of silicon steel sheets, 30 kilograms of copper cash), greatly dwindled the weight and volume of equipment, refreshed the China's coal-mine down-hole and used traditional " stupid, big, black, thick " equipment history of nearly four more than ten years.

Six, feature

The present invention has replaced traditional rectifier transformer and smoothing reactor with the high power contravariant device.And now under coal mine, what the high power contravariant device of other industrial 220v, 380v and other electric pressure used on the ground is all very general, but under coal mine the electric pressure of 660v power supply the application of its high power contravariant device to also have many key issues to have to be solved.The problem of most critical is low-cost.If disregard cost, the also fine design of then this inverter, to improve performance again just very difficult but will original relatively legacy equipment should reduce cost.And the present invention has solved this difficult problem exactly, has guaranteed low-cost, high-performance technically.To sum up, the invention is characterized in: will place explosion-proof casing by the high-power charger of high-frequency inversion technology manufacturing, thereby realize meeting the mining explosion-proof inverse charging equipment of explosion-proof electric apparatus standard under the coal mine.

Seven, description of drawings

Accompanying drawing 1 is an electrical principle block diagram of the present invention, is made of explosion-proof casing (not drawing among the figure), three-phase rectifier, inverter, hf rectifier, controller and protective circuit.

The 660v three-phase alternating voltage becomes high frequency through the high power contravariant device again under the coal mine after three phase rectifier becomes direct current, becomes the charging of direct current accumulators group by hf rectifier.

Accompanying drawing 2 is traditional flame-proof mine charging device electrical principle block diagrams, by formations such as explosion-proof casing (not drawing among the figure), rectifier transformer, silicon controlled rectifier, smoothing reactors.

The 660v three-phase alternating voltage becomes direct current by silicon controlled rectifier control under the coal mine after the three-phase rectifier transformer transformation, charges through smoothing reactor accumulators group.

Claims

A kind of mining explosion-proof inverse charging equipment that is used for containing under the coal mine explosive gas atmosphere.This equipment is made of explosion-proof casing, three-phase rectifier, inverter, hf rectifier, controller and protective circuit.It is characterized in that: will place explosion-proof casing by the high-power charger of high-frequency inversion technology manufacturing, thereby realize meeting the mining explosion-proof inverse charging equipment of explosion-proof electric apparatus standard under the coal mine.