CN209447653U - A kind of dry-type rectifier transformer cooling structure - Google Patents

Abstract

A kind of dry-type rectifier transformer cooling structure, including shell, water circulating pump, copper pipe, iron core, low-voltage coil and low-voltage coil, setting is cored in shell, the outside of iron core successively winds low-voltage coil, low-voltage coil and copper pipe, low-voltage coil and copper pipe are wound around iron core according to preset distance and the number of turns, high-tension coil is provided on the outside of low-voltage coil and copper pipe, insulation division is provided between copper pipe and high-tension coil, insulation division is closely crimped by high-tension coil, the side of shell is provided with water circulating pump, water circulating pump is provided with liquid feed valve and liquid valve, the inlet and liquid outlet of water circulating pump pass through pipeline respectively and the two-port of copper pipe connects, coolant liquid is marked in copper pipe and pipeline, the groove of fixed pipeline is provided on the outside of shell, the notch edge of groove is provided with the buckle that can fasten pipeline, the utility model, by transformation The copper pipe added between device iron core winding is marked with the coolant liquid of pure water, can be directly quickly cooling by winding, reduces coil temperature in time.

Description

A kind of dry-type rectifier transformer cooling structure

Technical field

The utility model relates to high-pressure frequency-conversion field, more particularly, to a kind of dry-type rectifier transformer.

Background technique

The capacity of transformer is related with calorific value, transformer designed for one, if in the bad environment that radiates Work, if it is 1000KVA, if enhancing heat-sinking capability, it is likely that work is in 1250KVA.The heating part of high-voltage frequency converter Part is mainly two parts: first is that rectifier transformer, second is that power component, the winding coil fever of transformer is main heat source, At present other than air is cooling, there are also water-cooling pattern is used, have it is some by the way that waterway pipe is arranged in shell, by equipment entirety It cools, but often in heat, since whole equipment shell shines upon temperature with regard to relatively high, water route is in cabinet Entire circulating cooling effect is not obvious enough, and the overheat for easily causing rectifier transformer is even overloaded and damaged, and winding coil It may be destroyed with the insulation system of winding coil, reduce insulation service life, it is therefore desirable to which a kind of technology is able to solve The cooling problem of dry-type rectifier transformer.

Summary of the invention

The utility model provides a kind of dry-type rectifier transformer cooling structure, and transformer winding can cool down rapidly, protects Hold normal operation；The technical solution of the utility model are as follows:

A kind of dry-type rectifier transformer cooling structure, including shell, water circulating pump, copper pipe, iron core, low-voltage coil and low pressure Coil, the interior setting of the shell is cored, and the outside of the iron core successively winds low-voltage coil, high-tension coil and copper pipe, described Low-voltage coil and copper pipe are wound around iron core according to preset distance and the number of turns, are provided on the outside of the low-voltage coil and copper pipe High-tension coil, high-tension coil are fastened according to pre-determined distance and the number of turns around iron core, are provided between copper pipe and high-tension coil Insulation division, insulation division are closely crimped by high-tension coil, and the side of the shell is provided with water circulating pump, the feed liquor of water circulating pump Mouthful and liquid outlet be respectively arranged with liquid feed valve and liquid valve, liquid feed valve and liquid valve are connected separately with pipeline, water circulating pump into Liquid mouth and liquid outlet pass through pipeline respectively and the two-port of copper pipe connects, and are marked with coolant liquid, pipeline and feed liquor in copper pipe and pipeline Valve is fixedly connected with liquid valve by flange, and the groove of fixed pipeline, the notch edge of groove are provided on the outside of the shell It is provided with the buckle that can fasten pipeline, pipeline vibration can be reduced by being provided on the outside of the pipeline of the inner walls top and bottom end Dynamic rubber strip, pipeline are fixed with shell by rubber strip and bolt presses.

The insulation division includes insulation board and square ring, and insulation board, the outside of insulation board are provided on the outside of the copper pipe It is provided with square ring, square ring includes vertical portion and the bending part for capableing of Insulating A High-Voltage coil both ends magnetic field.

The iron core includes the first iron core, the second iron core and third iron core, is additionally provided with casing, casing packet on the shell First sleeve and the second casing are included, the outer lead of low-voltage coil and the connecting terminal of first sleeve connect, and the outer of high-tension coil draws Line is connect with the connecting terminal of the second casing, the lead of the low-voltage coil of the first iron core and high-tension coil respectively with the second iron core It is integral with the lead crimping of the low-voltage coil and high-tension coil of third iron core.

Smear the thermal conductivity silica gel with insulating effect in the outside of the copper pipe.

The liquid feed valve and liquid valve are four-way control valve.

Compared with prior art, a kind of dry-type rectifier transformer cooling structure of the utility model, by transformer core winding Between add the copper pipe of water filling, can be directly quickly cooling by running winding, being different from will be in entire transformer shell body All cooling more can be improved winding cooling velocity, improve winding service life, even if in the environment of heat, by infusing in time Winding temperature can quickly be reduced by entering the lower pure water of temperature, for setting pipeline increase devise place pipeline groove with And the buckle on groove, fixation pipeline that can be more steady reduce vibration that may be present between pipeline and transformer, reduce because The vibration of pipeline and increased noise.

Detailed description of the invention

The utility model is described in further detail below in conjunction with attached drawing.

Attached drawing 1 is the structural schematic diagram of the utility model.

Attached drawing 2 is the coil the schematic diagram of the section structure of the utility model.

In attached drawing, 1, shell, 2, water circulating pump, 3, valve, 4, pipeline, 41, copper pipe, 5, iron core, 6, low-voltage coil, 7, height Crimping circle, 8, first sleeve, the 9, second casing, 10, insulation division.

Specific embodiment

In order to enable those skilled in the art to better understand the technical solutions of the present invention, 1, attached drawing with reference to the accompanying drawing 2 and specific embodiment the utility model is further described.

As shown in Figure 1 and Figure 2, a kind of dry-type rectifier transformer cooling structure, including shell 1, water circulating pump 2, copper Pipe 41, iron core 5, low-voltage coil 6, low-voltage coil 7, the interior setting cored 5 of the shell 1, the outside of the iron core 5 is successively wound Low-voltage coil 6, low-voltage coil 7 and copper pipe 41, the low-voltage coil 6 and copper pipe 41 are around iron core 5 according to preset distance and the number of turns Winding, the outside of the low-voltage coil 6 and copper pipe 41 are provided with high-tension coil 7, high-tension coil 7 around iron core according to pre-determined distance and The number of turns winding, is provided with insulation division 10 between copper pipe 41 and high-tension coil 7, the side of the shell 1 is provided with water circulating pump 2, The inlet and outlet of water circulating pump 2 pass through pipeline 4 respectively and connect with the two-port of copper pipe 41, and pure water is injected in copper pipe 41, Pipeline 4 is fixedly connected with liquid feed valve and liquid valve by flange, and the groove 42 of fixed pipeline 4 is provided on the outside of the shell, The notch edge of groove 42 is provided with the buckle that can fasten pipeline 4,4 outside of pipeline on the 1 inner wall top of shell and bottom end It is provided with the rubber strip that can reduce pipeline vibration, pipeline 4 is fixed with shell 1 by rubber strip and bolt presses, low-voltage coil 6 It is transmitted with the heat generated in the operation of low-voltage coil 7 by the heat of adjacent copper pipe 41, bad cooling is followed by the pure water in copper pipe, it can Fast cooling directly is carried out to transformer winding, improves transformer Cooling speed, pipeline is fixed in groove 42, transformer fortune The vibration that pipeline vacantly generates is reduced when row generates vibration, to generate noise or influence the shell rugged performance of transformer.

Further, the insulation division 10 includes insulation board and square ring, and the outside of the copper pipe 41 is provided with insulation board, absolutely Square ring is provided on the outside of listrium, square ring includes the bending part at vertical portion and both ends, and the outside and both ends of the vertical portion of square ring are curved High-tension coil 7 is set as between folding part.

Further, the iron core 5 includes the first iron core, the second iron core and third iron core, is also covered on the shell 1 Pipe, casing includes first sleeve 8 and the second casing 9, and the outer lead of low-voltage coil 6 is connect with the connecting terminal of first sleeve 8, high The outer lead of crimping circle 7 is connect with the connecting terminal of the second casing 9, and the low-voltage coil 6 of the first iron core and the interior of high-tension coil 7 draw Line crimps integrally with the lead of the low-voltage coil 6 and high-tension coil 7 of the second iron core and third iron core respectively.

Further, thermal conductivity silica gel, heat-conducting silica gel sheet heat conduction non-conducting, by thermally conductive are smeared in the outside of the copper pipe 41 The electrical isolation of silica gel, the operation for a long time of copper pipe 41 does not influence the magnetic field of winding, and heat conductive silica gel heating conduction is fabulous, can be quick By winding heat transfer to the water inside copper pipe 41 and copper pipe 41.

Further, the liquid feed valve and liquid valve are four-way control valve.

A kind of dry-type rectifier transformer cooling structure of the utility model will add the copper of water filling between transformer core winding Pipe, can be directly quickly cooling by running winding, and being different from all to cool down in entire transformer shell body can more mention High winding cooling velocity improves winding service life, even if in the environment of heat, by injecting the lower pure water of temperature in time Winding temperature can be quickly reduced, the pipeline increase for setting devises the buckle on the groove and groove of placing pipeline, Fixation pipeline that can be more steady reduces vibration that may be present between pipeline and transformer, reduces and increases because of the vibration of pipeline The noise added.

Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model It encloses.

Claims (6)

1. a kind of dry-type rectifier transformer cooling structure, including it is shell (1), water circulating pump (2), copper pipe (41), iron core (5), low Crimping circle (6) and high-tension coil (7), it is characterised in that cored (5) are set in the shell (1), the outside of the iron core (5) Low-voltage coil (6), high-tension coil (7) and copper pipe (41), the low-voltage coil (6) and copper pipe (41) is successively wound to press around iron core It is wound according to preset distance and the number of turns, is provided with high-tension coil (7), high pressure on the outside of the low-voltage coil (6) and copper pipe (41) Coil (7) is fastened around iron core according to pre-determined distance and the number of turns, is provided with insulation between copper pipe (41) and high-tension coil (7) Portion (10), insulation division (10) are closely crimped by high-tension coil (7), and the side of the shell (1) is provided with water circulating pump (2), The inlet and liquid outlet of water circulating pump (2) are respectively arranged with liquid feed valve (3) and liquid valve, liquid feed valve (3) and liquid valve difference It is connected with pipeline, the inlet and liquid outlet of water circulating pump (2) pass through pipeline (4) respectively and connect with the two-port of copper pipe (41), It is injected with coolant liquid in copper pipe (41) and pipeline (4), pipeline (4) is fixedly connected with liquid feed valve and liquid valve by flange, described The groove (42) of fixed pipeline (4) is provided on the outside of shell, the notch edge of groove (42), which is provided with, can fasten pipeline (4) Buckle, be provided with the rubber strip that can reduce pipeline vibration on the outside of the pipeline (4) of shell (1) the inner wall top and bottom end, Pipeline (4) is fixed with shell (1) by rubber strip and bolt presses.

2. a kind of dry-type rectifier transformer cooling structure according to claim 1, which is characterized in that the groove (42) is also Setting is respectively arranged with liquid feed valve (3) and liquid valve, the structure of expansion mouth inside expansion mouth described in two there are two expansion mouth It is matched with liquid feed valve (3) and liquid valve.

3. a kind of dry-type rectifier transformer cooling structure according to claim 1, which is characterized in that the insulation division (10) include insulation board and square ring, be provided with insulation board on the outside of the copper pipe (41), square ring, angle are provided on the outside of insulation board Ring includes vertical portion and the bending part for capableing of Insulating A High-Voltage coil (7) both ends magnetic field.

4. a kind of dry-type rectifier transformer cooling structure according to claim 1, which is characterized in that iron core (5) packet Include the first iron core, the second iron core and third iron core, be additionally provided with casing on the shell (1), casing include first sleeve (8) and The outer lead of second casing (9), low-voltage coil (6) is connect with the connecting terminal of first sleeve (8), outer the drawing of high-tension coil (7) Line is connect with the connecting terminal of the second casing (9), the low-voltage coil (6) of the first iron core and the lead difference of high-tension coil (7) It is crimped integrally with the lead of the low-voltage coil (6) and high-tension coil (7) of the second iron core and third iron core.

5. a kind of dry-type rectifier transformer cooling structure according to claim 1, which is characterized in that the copper pipe (41) The thermal conductivity silica gel with insulating effect is smeared in outside, and the coolant liquid injected in the pipeline (4) and copper pipe (41) is pure water.

6. a kind of dry-type rectifier transformer cooling structure according to claim 1, which is characterized in that the liquid feed valve (3) It is four-way control valve with liquid valve.