CN112714591A - U-shaped water-cooling circulating device for high-power electric locomotive converter - Google Patents
U-shaped water-cooling circulating device for high-power electric locomotive converter Download PDFInfo
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- CN112714591A CN112714591A CN202011513747.9A CN202011513747A CN112714591A CN 112714591 A CN112714591 A CN 112714591A CN 202011513747 A CN202011513747 A CN 202011513747A CN 112714591 A CN112714591 A CN 112714591A
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- water
- cooling
- pipeline
- shaped
- converter
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The invention discloses a U-shaped water-cooling circulating device for a high-power electric locomotive converter and a cooling system applying the device, and relates to the field of cooling systems of converters. The U-shaped water-cooling circulating device comprises a U-shaped stainless steel pipe, flanges are fixedly connected to two ends of the U-shaped stainless steel pipe, a liquid inlet port and a liquid outlet port are respectively arranged on the two ends of the U-shaped stainless steel pipe, the bottom surface of a pipe body of the U-shaped stainless steel pipe is connected with the two-piece type flow tooth mouth ball valve through a communicating pipe and a quick connector, and the lower portion of the two-piece type flow tooth mouth ball valve is connected with the stainless steel pipe. The cooling system comprises a plurality of groups of circulating water cooling pipeline structures, each group of circulating water cooling pipeline structures is responsible for circulating heat dissipation of a power module of one shaft converter, each group of circulating water cooling pipeline structures comprises a U-shaped water cooling circulating device, and the cooling system also comprises a water pump, a plurality of water cooling pipelines, a liquid outlet pipeline and an expansion water tank. The invention solves the problems of the injection and the drainage of the cooling liquid and the heat dissipation of the operation of the converter monomer, also solves the problem of the communicated contact which is communicated in the cooling system, and has very flexible installation structure.
Description
Technical Field
The invention relates to the field of cooling systems of converters, in particular to a U-shaped water-cooling circulating device for a high-power electric locomotive converter.
Background
The converter is a very important component in a rail transit electric transmission system, and the cooling system is also an important part of the converter besides an electric element, a power element and a control unit. The cooling system mainly solves the heat dissipation problem of the power element of the converter, so that the stable work of the converter is guaranteed, and the working efficiency of the converter is improved.
A cooling circulation system is formed by an internal cooling system and an external cooling tower of a general converter, when the converter is separated from the cooling tower, and the converter runs independently, effective water-cooling circulation of cooling liquid in a water-cooling system of the converter is required to be carried out, so that the converter is ensured to cool and dissipate heat of a power module when in work, and the power module is prevented from being damaged due to overhigh temperature. The water-cooling circulation device for the converter has the function of forming a flow circulation channel of cooling liquid, and the connection by using a pipeline is the simplest and easiest way at present. The existing pipeline design mostly adopts the connection of a hose and a corrugated pipe, so that a water cooling system forms flow circulation. However, there are some drawbacks to using a hose and bellows connection: (1) the hose connection is limited by conditions of environment temperature, service life, vibration, small pressure bearing and the like; (2) moreover, this is a simple coolant flow channel, and the ideal state cannot be achieved due to space position limitations. Therefore, the water cooling circulation device of the converter needs to be improved to meet the normal operation of the interior of the converter during independent operation.
Disclosure of Invention
The invention provides a U-shaped water-cooling circulating device for a high-power electric locomotive converter, aiming at solving the problem that the converter and a cooling tower work normally when separated and operated independently.
The invention is realized by the following technical scheme: the U-shaped water-cooling circulating device for the high-power electric locomotive converter comprises a U-shaped stainless steel pipe, wherein flanges, a liquid inlet port and a liquid outlet port are fixedly connected to two ends of the U-shaped stainless steel pipe respectively, the bottom surface of a pipe body of the U-shaped stainless steel pipe is connected with a two-piece type flow tooth mouth ball valve through a communicating pipe and a quick connector, and the lower portion of the two-piece type flow tooth mouth ball valve is connected with the stainless steel pipe.
The invention is mainly invented aiming at the cooling of the electric locomotive converter during the independent operation, the assembly is a cooling system, a U-shaped water-cooling circulating device is applied in the cooling system, and a single U-shaped water-cooling circulating device corresponds to each group of circulating water-cooling pipeline structures. The U-shaped water-cooling circulating device mainly comprises a U-shaped stainless steel pipe, wherein flanges are fixedly connected to two ends of the upper part of the U-shaped water-cooling circulating device and are used for being connected with an external pipeline and used for feeding liquid and discharging liquid; this overall structure provides the circulation passageway of coolant liquid, and the equipment of being convenient for has solved the injection of coolant liquid in the cooling device simultaneously, has excreted the problem, has realized the connection of communicating pipe among the cooling device. The U-shaped water-cooling circulating device is specifically operated as follows: the upper end of the U-shaped stainless steel pipe is connected with an external pipeline for liquid inlet and outlet, circulation is achieved, and if liquid needs to be discharged, the two-piece type tap hole ball valve is opened, so that the liquid is discharged from the stainless steel pipe.
A cooling system of a high-power electric locomotive converter applying the U-shaped water-cooling circulating device comprises a plurality of groups of circulating water-cooling pipeline structures, wherein each group of circulating water-cooling pipeline structures comprises a U-shaped water-cooling circulating device, a liquid inlet port at the upper part of the U-shaped water-cooling circulating device is connected with a liquid outlet of a water pump through a water-cooling pipeline I, a liquid outlet port is connected with a water-cooling pipeline II through a liquid outlet pipeline, the water-cooling pipeline II is connected with a water-cooling pipeline III through a plurality of water connecting plates, the water-cooling pipeline III is connected with a liquid inlet of the water pump through a pipeline, the water-cooling pipeline II is positioned on the upper side of the water-cooling pipeline III, the water-cooling pipeline; the left side one end of water-cooling pipeline II is passed through water tank pipeline I and is connected with expansion tank, expansion tank still is equipped with another water tank pipeline II, water tank pipeline II is located water-cooling pipeline II's right side one end, and draws forth from water-cooling pipeline III's right side one end, is connected with expansion tank again through water-cooling pipeline II's right side one end.
A cooling system of a high-power electric locomotive converter using the U-shaped water-cooling circulating device comprises a plurality of groups of circulating water-cooling pipeline structures, wherein each group of circulating water-cooling pipeline structures is responsible for circulating heat dissipation of a power module of an axis converter, so that each group of circulating water-cooling pipeline structures is applied with one U-shaped water-cooling circulating device, a liquid inlet port at the upper part of the U-shaped water-cooling circulating device is connected with a liquid outlet of a water pump through a water-cooling pipeline I, a liquid outlet port is connected with a water-cooling pipeline II through a liquid outlet pipeline, cooling liquid enters the U-shaped water-cooling circulating device from the liquid inlet port and then is injected into the water-cooling pipeline II from the liquid outlet port, the water-cooling pipeline II is connected with a water-cooling pipeline III through a plurality of water connecting plates, the water-cooling pipeline II is communicated with the water-cooling pipeline III, circulation of the cooling liquid, therefore, the cooling liquid enters the water pump, the water pump rotates the cooling liquid to the liquid outlet, and the liquid outlet is connected with the liquid inlet port of the U-shaped water-cooling circulating device, so that the circulating cooling is realized; in the whole circulating water cooling pipeline structure, an expansion water tank is also arranged, and the expansion water tank plays the following roles: 1) a change in absorbent capacity; 2) maintaining a minimum reserve of cooling fluid at the minimum temperature of the expansion tank; 3) the water level can be displayed on the visual glass. This water tank plays a buffering effect for the coolant liquid, if the coolant liquid temperature risees, appears the inflation, and then liquid level in the water tank rises, and the coolant liquid passes through expansion tank buffer to make it can not spill over from the cooling line. Expansion tank has two water tank pipeline, and this pipeline is more thin a little usually, because water cooling pipeline II is located the III upsides of water cooling pipeline, and water cooling pipeline II sets up side by side with water cooling pipeline III is parallel, and both ends align, so water tank pipeline I is connected with the left side one end of water cooling pipeline II, and the right side one end of water cooling pipeline III is got into again to the right side one end of II process water cooling pipeline of another water tank pipeline. The cooling system comprises a plurality of groups of circulating water cooling pipeline structures, and the circulating working processes are the same, so the cooling system specifically operates as follows: cooling liquid enters from a water pump, the water pump starts to run, a two-piece type tap hole ball valve under a U-shaped water-cooling circulating device is locked, the cooling liquid enters a U-shaped stainless steel pipe from a liquid inlet port of the U-shaped water-cooling circulating device through a water cooling pipeline I, then enters a liquid outlet pipeline from a liquid outlet port, and then enters a water cooling pipeline II from the liquid outlet pipeline, the cooling liquid and the water cooling pipeline II are in a communicated state due to the fact that a plurality of water connecting plates are connected between the water cooling pipeline II and the water cooling pipeline III, the cooling liquid enters a water cooling pipeline III from the water cooling pipeline II and then returns to the water pump, the cooling liquid is driven by power of the water pump, the cooling circulation heat dissipation of the whole cooling system is achieved, if the temperature of the cooling liquid is high, expansion occurs, the cooling liquid enters an expansion water tank from; when the cooling is finished or the cooling liquid needs to be replaced, the two-piece type flow tooth mouth ball valve can be opened, and the cooling liquid is discharged from the stainless steel pipe.
Compared with the prior art, the invention has the following beneficial effects: the U-shaped water-cooling circulating device for the high-power electric locomotive converter and the cooling system applying the device solve the problems of injection and drainage of cooling liquid and heat dissipation of single operation of the converter, are convenient and easy to implement in injection and drainage modes, do not damage any connection, are high in tightness, simultaneously solve the problem of connection points which are communicated in the cooling system, do not need a cooling tower when in single operation, and are very flexible in installation structure.
Drawings
Fig. 1 is a schematic front view of the U-shaped water-cooling circulation device of the present invention.
Fig. 2 is a schematic side view of the U-shaped water-cooling circulation device of the present invention.
Fig. 3 is a schematic top view of the U-shaped water-cooling circulation device of the present invention.
Fig. 4 is a schematic connection diagram of a cooling system of a converter of a high-power electric locomotive applying a U-shaped water-cooling circulation device according to the present invention.
Fig. 5 is a schematic diagram of the overall structure of the cooling system of the converter of the high-power electric locomotive applying the U-shaped water-cooling circulation device of the invention.
The figures are labeled as follows: 1-flange, 2-U-shaped stainless steel pipe, 3-quick coupling, 4-two-piece type flow tooth mouth ball valve, 5-stainless steel pipe, 6-water cooling pipeline I, 7-water pump, 8-liquid outlet pipeline, 9-water cooling pipeline II, 10-water connecting plate, 11-water cooling pipeline III, 12-water tank pipeline I, 13-expansion water tank and 14-water tank pipeline II.
Detailed Description
The present invention is further illustrated by the following specific examples.
A U-shaped water-cooling circulation device for a high-power electric locomotive converter is shown in figures 1-3: including the nonrust steel pipe 2 of U-shaped, fixedly connected with flange 1 on two ends of the nonrust steel pipe 2 of U-shaped, be the feed liquor port respectively and go out the liquid port, the pipe shaft bottom surface of the nonrust steel pipe 2 of U-shaped flows the tooth mouth ball valve 4 with two formula through communicating pipe and quick-operation joint 3 and is connected, the nonrust steel pipe 5 of 4 sub-unit connections of tooth mouth ball valve is flowed to two formula.
In this embodiment, the two-piece tap hole ball valve 4 and the stainless steel pipe 5 are a liquid discharge part.
The embodiment also provides a cooling system of the high-power electric locomotive converter applying the U-shaped water-cooling circulating device, which comprises a plurality of groups of circulating water-cooling pipeline structures, wherein each group of circulating water-cooling pipeline structures comprises a U-shaped water-cooling circulating device, a liquid inlet port at the upper part of the U-shaped water-cooling circulating device is connected with a liquid outlet of a water pump 7 through a water-cooling pipeline I6, a liquid outlet port is connected with a water-cooling pipeline II 9 through a liquid outlet pipeline 8, the water-cooling pipeline II 9 is connected with a water-cooling pipeline III 11 through a plurality of water connecting plates 10, the water-cooling pipeline III 11 is connected with a liquid inlet of the water pump 7 through a pipeline, the water-cooling pipeline II 9 is positioned at the upper side of the water-cooling pipeline III 11, the water-cooling pipeline; left side one end of water-cooling pipeline II 9 is passed through water tank pipeline I12 and is connected with expansion tank 13, expansion tank 13 still is equipped with another water tank pipeline II 14, water tank pipeline II 14 is located water-cooling pipeline II 9's right side one end, and draws forth from water-cooling pipeline III 11's right side one end, is connected with expansion tank 13 again through water-cooling pipeline II 9's right side one end.
In this embodiment, valves are arranged on the liquid inlet and the liquid outlet of the upper part of the U-shaped water-cooling circulation device; the two-piece type tap hole ball valve 4 and the stainless steel pipe 5 at the lower part of the U-shaped water-cooling circulating device are liquid discharge ports; the number of the circulating water cooling pipeline structures is determined according to the number of the power modules of the shaft converter, namely the number of the circulating water cooling structures is equal to the number of the power modules of the shaft converter; each group of circulating water cooling pipeline structures is responsible for circulating heat dissipation of a power module of one shaft converter; there are 3 water connecting plates 10.
The cooling system of this embodiment is applied to on a high-power electric locomotive converter cabinet, and this cooling system includes two sets of circulation water-cooling pipeline structures, and this embodiment is the specific operation: cooling liquid enters from a water pump 7, the water pump 7 starts to run, a two-piece type sprue ball valve 4 below the U-shaped water-cooling circulating device is locked, the cooling liquid enters into a U-shaped stainless steel pipe 2 from a liquid inlet port of the U-shaped water-cooling circulating device through a water cooling pipeline I6, then enters a liquid outlet pipeline 8 from a liquid outlet port, enters a water cooling pipeline II 9 from a liquid outlet pipe 8, because a plurality of water connecting plates 10 are connected between the water cooling pipeline II 9 and the water cooling pipeline III 11, therefore, the cooling liquid and the water cooling pipeline are also in a communicated state, the cooling liquid enters the water cooling pipeline III 11 from the water cooling pipeline II 9, the cooling liquid returns to the water pump 7 and is driven by the power of the water pump 7 to cool, circulate and radiate the whole cooling system, if the temperature of the cooling liquid is high and the cooling liquid expands, the cooling liquid can enter the expansion water tank 13 from the water tank pipeline I12 and the water tank pipeline II 14 for buffering, and the liquid level in the water tank rises, so that the purpose of preventing the cooling liquid from overflowing from the cooling pipeline is achieved; when the cooling is finished or the cooling liquid needs to be replaced, the two-piece type flow tooth mouth ball valve 4 can be opened, and the cooling liquid is discharged from the stainless steel pipe 5.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.
Claims (8)
1. The utility model provides a U-shaped water-cooling circulating device for high-power electric locomotive converter which characterized in that: including stainless steel pipe (2) of U-shaped, fixedly connected with flange (1), be the feed liquor port respectively and go out the liquid port on two ends of stainless steel pipe (2) of U-shaped, the pipe shaft bottom surface of the stainless steel pipe of U-shaped (2) is connected with two piece formula stream tooth mouth ball valves (4) through communicating pipe and quick-operation joint (3), two piece formula stream tooth mouth ball valve (4) sub-unit connection stainless steel pipe (5).
2. The U-shaped water-cooling circulation device for the high-power electric locomotive converter according to claim 1, characterized in that: the two-piece type tap hole ball valve (4) and the stainless steel pipe (5) are drainage positions.
3. A cooling system of a converter of a high-power electric locomotive using the U-shaped water-cooling circulation device of claim 1, wherein: the water cooling system comprises a plurality of groups of circulating water cooling pipeline structures, wherein each group of circulating water cooling pipeline structures comprises a U-shaped water cooling circulating device, a liquid inlet port on the upper part of the U-shaped water cooling circulating device is connected with a liquid outlet of a water pump (7) through a water cooling pipeline I (6), and a liquid outlet port is connected with a water cooling pipeline II (9) through a liquid outlet pipeline (8), the water cooling pipeline II (9) is connected with a water cooling pipeline III (11) through a plurality of water connecting plates (10), the water cooling pipeline III (11) is connected with a liquid inlet of the water pump (7) through a pipeline, the water cooling pipeline II (9) is positioned on the upper side of the water cooling pipeline III (11), the water cooling pipeline II (9) and the water cooling pipeline III (11) are arranged in parallel and; the left side one end of water-cooling pipeline II (9) is passed through water tank pipeline I (12) and is connected with expansion tank (13), expansion tank (13) still are equipped with another water tank pipeline II (14), water tank pipeline II (14) are located the right side one end of water-cooling pipeline II (9), and draw forth from the right side one end of water-cooling pipeline III (11), are connected with expansion tank (13) again through the right side one end of water-cooling pipeline II (9).
4. The cooling system of the converter of the high power electric locomotive of the U-shaped water cooling circulation device as claimed in claim 3, wherein: and valves are arranged on the liquid inlet port and the liquid outlet port at the upper part of the U-shaped water-cooling circulating device.
5. The cooling system of the converter of the high power electric locomotive of the U-shaped water cooling circulation device as claimed in claim 3, wherein: the two-piece type flow tooth mouth ball valve (4) at the lower part of the U-shaped water cooling circulation device and the stainless steel pipe (5) are liquid discharge ports.
6. The cooling system of the converter of the high power electric locomotive of the U-shaped water cooling circulation device as claimed in claim 3, wherein: the number of the circulating water cooling pipeline structures is determined according to the number of the power modules of the shaft converter, namely the number of the circulating water cooling structures is equal to the number of the power modules of the shaft converter.
7. The cooling system of the converter of the high power electric locomotive of the U-shaped water cooling circulation device as claimed in claim 6, wherein: and each group of circulating water cooling pipeline structures is responsible for circulating heat dissipation of the power module of one shaft converter.
8. The cooling system of the converter of the high power electric locomotive of the U-shaped water cooling circulation device as claimed in claim 3, wherein: the number of the water connecting plates (10) is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011513747.9A CN112714591A (en) | 2020-12-21 | 2020-12-21 | U-shaped water-cooling circulating device for high-power electric locomotive converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011513747.9A CN112714591A (en) | 2020-12-21 | 2020-12-21 | U-shaped water-cooling circulating device for high-power electric locomotive converter |
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| CN112714591A true CN112714591A (en) | 2021-04-27 |
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| CN202011513747.9A Pending CN112714591A (en) | 2020-12-21 | 2020-12-21 | U-shaped water-cooling circulating device for high-power electric locomotive converter |
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Application publication date: 20210427 |
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