CN116075114A - High-voltage frequency converter with water cooling structure and working method thereof - Google Patents
High-voltage frequency converter with water cooling structure and working method thereof Download PDFInfo
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- CN116075114A CN116075114A CN202210669952.7A CN202210669952A CN116075114A CN 116075114 A CN116075114 A CN 116075114A CN 202210669952 A CN202210669952 A CN 202210669952A CN 116075114 A CN116075114 A CN 116075114A
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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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
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- Microelectronics & Electronic Packaging (AREA)
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- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of high-voltage frequency converters, in particular to a high-voltage frequency converter with a water cooling structure and a working method thereof, wherein the high-voltage frequency converter internally comprises a water cooling device, and the water cooling device comprises a water inlet pipe, a water outlet pipe, a water cooling plate, a water circulation device and a cleaning device; by arranging the transverse pipe, the electromagnetic valve, the vertical pipe and the piston, the opened electromagnetic valve is suddenly closed, water flow can generate a water hammer effect in the transverse pipe, and dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect; after the constant water flow smoothly flows, when the dirt moves above the vertical pipe, the suspended dirt falls onto the upper surface of the piston under the action of gravity; compared with the prior cleaning ball or chemical agent for cleaning dirt in the pipe, the cleaning ball or chemical agent reduces the residual dirt in the pipe or the corrosion caused to the inner wall of the pipe, improves the smoothness of water in the whole water cooling process, and improves the heat dissipation effect in the high-voltage frequency converter.
Description
Technical Field
The invention belongs to the technical field of high-voltage frequency converters, and particularly relates to a high-voltage frequency converter with a water cooling structure and a working method thereof.
Background
The high-voltage frequency converter is an electric energy control device which is used for connecting an inductance device in series or connecting an inductance unit in series in a box body to form an on-off function so as to convert a power frequency power supply of the frequency converter into another frequency power supply; in the working process of the high-voltage frequency converter, the internal loss of the high-voltage frequency converter causes the phenomenon of heating in the high-voltage frequency converter, and the failure rate of the high-voltage frequency converter is increased along with the increase of temperature, so that the reliability and the stability of the high-voltage frequency converter are affected, the service life of the high-voltage frequency converter is also affected, and therefore, the water cooling structure of the high-voltage frequency converter is born;
for the high-voltage variable-frequency water cooling structure in the prior art, the general working process is as follows: the power unit device in the high-voltage frequency converter is arranged on a water cooling plate, the water cooling plate is connected with a water-water heat exchanger outside the box body through a water inlet pipe and a water outlet pipe, cold water in the water-water heat exchanger enters the water cooling plate through the water inlet pipe, heat generated by the power unit device is transferred to the cold water through the water cooling plate to enable the cold water to be changed into hot water, the hot water is cooled through a cooler in the water-water heat exchanger, the hot water is changed into cold water, and the cold water enters the water cooling plate through the water inlet pipe to form water circulation;
however, when the high-voltage variable-frequency water cooling structure is actually operated, water is heated to generate steam, so that the water is continuously concentrated, harmful impurities originally contained in the water are concentrated in a pipe to form dirt, smoothness of the water in the whole water cooling process is affected, and heat dissipation effect of the inside of the high-voltage variable-frequency converter is affected.
Based on the above, the invention designs a high-voltage frequency converter with a water cooling structure and a working method thereof, so as to solve the technical problems.
Disclosure of Invention
In order to overcome the defects, the invention provides a high-voltage frequency converter with a water cooling structure and a working method thereof, and solves the problems that in the water cooling process, water in a pipeline is heated and concentrated, impurities in the water are separated out of dirt in the pipeline, so that the smoothness of the water in the whole water cooling process is affected, and the heat dissipation in the high-voltage frequency converter is affected.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a high-voltage frequency converter with a water cooling structure, which internally comprises a water cooling device, wherein the water cooling device comprises a water inlet pipe, a water outlet pipe, a water cooling plate, a water circulation device and a cleaning device, the surface of the water cooling plate is connected with a power unit element in a threaded manner, the water inlet pipe is connected with a water inlet of the water cooling plate in a threaded manner, the water outlet pipe is connected with a water outlet of the water cooling plate in a threaded manner, one sides of the water inlet pipe and the water outlet pipe, which are far away from the water cooling plate, are fixedly connected with the water circulation device, the water circulation device is used for supplying water and reducing the temperature of the water, the cleaning device is connected with the water outlet pipe in a threaded manner, and the cleaning device comprises:
the electromagnetic valve is in threaded connection with the water outlet pipe and is positioned at one side of the water outlet pipe, which is close to the water circulation device;
the transverse pipe is in threaded connection with the electromagnetic valve and is positioned at one side of the water outlet pipe, which is close to the water cooling plate;
the filter plate is fixedly connected inside the transverse pipe and is positioned at one side of the transverse pipe, which is close to the electromagnetic valve;
the vertical pipes are fixedly connected with the transverse pipes and are positioned at the bottom of the filter plate;
the sealing cover is positioned at the bottom of the vertical pipe and is in threaded connection with the outer side of the vertical pipe;
the piston is in sliding and sealing connection in the vertical pipe, and the bottom of the piston is fixedly connected with the upper surface of the sealing cover through a first return spring;
and the controller is used for controlling the operation of parts in the high-voltage frequency converter.
Preferably, the inner caliber of the transverse tube is the same as that of the water outlet tube, the wall thickness of the transverse tube is larger than that of the water outlet tube, and the transverse tube and the water outlet tube are made of the same material.
Preferably, the filter plates are obliquely arranged in the transverse tube, and the surface area covered by the filter plates is larger than the caliber surface area of the pipeline.
Preferably, one side of the filter plate, which is close to the electromagnetic valve, is fixedly connected with the inner wall of the transverse tube through a second return spring, and the second return spring is uniformly distributed between the filter plate and the inner wall of the transverse tube.
Preferably, the first return spring and the second return spring are made of a rigid material, and the rigid material is 65 manganese steel.
Preferably, the inside of the vertical pipe is fixedly connected with a guide block, the guide block is positioned on one side of the vertical pipe away from the sealing cover, and the upper surface of the guide block is communicated with the bottom of the filter plate.
Preferably, the upper surface and the bottom surface of the guide block are inclined toward the central axis of the guide block, and the projection length of the upper surface and the bottom surface of the guide block is the same.
Preferably, the upper surface of the piston is fixedly connected with a fixing rod, one side, far away from the piston, of the fixing rod is fixedly connected with a blocking plate, and the blocking plate is conical in shape.
Preferably, the inner wall of the bottom of the blocking plate is inclined towards the central shaft of the fixing rod, the inner wall of the bottom of the blocking plate is provided with a collecting groove, and the collecting groove is a circular notch.
The working method of the high-voltage frequency converter with the water cooling structure is suitable for the high-voltage frequency converter with the water cooling structure, and comprises the following steps of;
s1: firstly, a controller controls a water pump to start, so that water circularly rotates among a water inlet pipe, a water cooling plate, a water outlet pipe and a water-water heat exchanger, and when the water passes through the water cooling plate, the water carries heat of a power unit element and flows to the water-water heat exchanger in the water outlet pipe;
s2: then after a period of time, the controller controls the electromagnetic valve to be closed, water can generate pressure on the electromagnetic valve and the pipe wall, and the subsequent water generates shock waves in the pipe under the action of inertia, and dirt on the pipe wall is separated from the pipe wall under the action of the shock waves;
s3: then after the horizontal steady flow, the water moves to the filter plate with suspended dirt, the filter plate blocks the movement of the dirt, and when the dirt moves to the upper part of the vertical pipe, the dirt suspended in the water falls to the upper surface of the piston under the action of gravity;
s4: finally, when the piston is stopped, water in the water outlet pipe and the water inlet pipe is discharged, and the rotary sealing cover is separated from the bottom of the vertical pipe, so that the sealing cover drives the piston to be separated from the inside of the vertical pipe through the first reset spring, dirt on the surface of the piston is cleaned, and after the cleaning of the piston is finished, the piston is inserted into the vertical pipe and the sealing cover is installed at the bottom of the vertical pipe.
The beneficial effects of the invention are as follows:
1. according to the high-voltage frequency converter with the water cooling structure and the working method thereof, the transverse pipe, the electromagnetic valve, the vertical pipe and the piston are arranged, the opened electromagnetic valve is suddenly closed, water flow can generate a water hammer effect in the transverse pipe, and dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect; after the constant water flow smoothly flows, when the dirt moves above the vertical pipe, the suspended dirt falls onto the upper surface of the piston under the action of gravity; compared with the prior cleaning ball or chemical agent for cleaning dirt in the pipe, the cleaning ball or chemical agent reduces the residual dirt in the pipe or the corrosion caused to the inner wall of the pipe, improves the smoothness of water in the whole water cooling process, and improves the heat dissipation effect in the high-voltage frequency converter.
2. According to the high-voltage frequency converter with the water cooling structure and the working method thereof, the blocking plate, the fixed rod and the collecting tank are arranged, so that when water flows in the vertical pipe, dirt can be prevented from flying upwards by the aid of the included angle formed between the fixed rod and the blocking plate, dirt in the water can be collected by the included angle part and the collecting tank, and after the working is finished, the piston can conveniently drive the dirt to move out of the vertical pipe through the included angle part and the collecting tank, and therefore accumulation of the dirt in the horizontal pipe is reduced, and the phenomenon that the smoothness of the water in the horizontal pipe and the water outlet pipe is affected is caused.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a process flow diagram of the intelligent building block production process of the invention;
FIG. 2 is a perspective view of a water cooling device in the intelligent building block production system of the present invention;
FIG. 3 is a cross-sectional view of a water cooling device in the intelligent building block production system of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a sectional view of a vertical tube of a water cooling device in the intelligent building block production system of the invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at B;
FIG. 7 is a schematic view of a related structure of the blocking plate in FIG. 5;
in the figure: 1. a water inlet pipe; 2. a water outlet pipe; 3. a water cooling plate; 4. a water circulation device; 5. an electromagnetic valve; 51. a second return spring; 6. a transverse tube; 61. a filter plate; 62. a standpipe; 621. a guide block; 63. a cover; 631. a first return spring; 64. a piston; 641. a fixed rod; 642. a blocking plate; 643. a collection tank.
Detailed Description
The embodiment of the invention solves the problems that in the existing water cooling process, water in a pipeline is heated and concentrated, impurities in the water are separated out of dirt in the pipeline, so that the smoothness of the water in the whole water cooling process is affected, and the heat dissipation in the high-voltage frequency converter is affected;
the technical scheme in the embodiment of the invention aims to solve the technical problems, and the overall thought is as follows:
by arranging the transverse pipe 6, the electromagnetic valve 5, the vertical pipe 62 and the piston 64, firstly, the controller controls the electromagnetic valve 5 to be closed, when the electromagnetic valve 5 is opened and suddenly closed, water flow can generate pressure on the electromagnetic valve 5 and the pipe wall, and the subsequent water flow generates shock waves in the pipe under the action of inertia, so that the water forms a water hammer effect in the transverse pipe 6 just like a hammer is knocked, dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect; secondly, after the water flow smoothly flows, the water flow drives the suspended dirt to move towards the filter plate 61, the filter plate 61 blocks the dirt from moving, and when the dirt moves above the vertical pipe 62, the dirt suspended in the water flow falls onto the upper surface of the piston 64 under the action of gravity; after the work is finished, the sealing cover 63 is rotated, so that the sealing cover 63 drives the piston 64 to be separated from the vertical pipe 62 through the first reset spring 631, and dirt on the surface of the piston 64 is cleaned; compared with the prior cleaning ball or chemical agent for cleaning dirt in the pipe, the cleaning ball or chemical agent reduces the residual dirt in the pipe or the corrosion caused to the inner wall of the pipe, improves the smoothness of water in the whole water cooling process, and improves the heat dissipation effect in the high-voltage frequency converter.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 7, the high-voltage frequency converter with a water cooling structure according to the present invention includes a water cooling device inside, the water cooling device includes a water inlet pipe 1, a water outlet pipe 2, a water cooling plate 3, a water circulation device 4 and a cleaning device, the surface of the water cooling plate 3 is screwed with a power unit, the water inlet pipe 1 is screwed with a water inlet of the water cooling plate 3, the water outlet pipe 2 is screwed with a water outlet of the water cooling plate 3, one sides of the water inlet pipe 1 and the water outlet pipe 2 far away from the water cooling plate 3 are both fixedly connected with the water circulation device 4, the water circulation device 4 is used for supplying water and reducing the temperature of water, the cleaning device is screwed with the water outlet pipe 2, and the cleaning device includes:
the electromagnetic valve 5 is in threaded connection with the water outlet pipe 2 and is positioned at one side of the water outlet pipe 2 close to the water circulation device 4;
the transverse pipe 6 is in threaded connection with the electromagnetic valve 5 and is positioned at one side of the water outlet pipe 2 close to the water cooling plate 3;
the filter plates 61 are fixedly connected inside the transverse pipes 6 and are positioned on one side of the transverse pipes 6 close to the electromagnetic valves 5;
the vertical pipes 62 are fixedly connected with the transverse pipes 6, and are positioned at the bottom of the filter plates 61;
the sealing cover 63 is positioned at the bottom of the vertical pipe 62 and is in threaded connection with the outer side of the vertical pipe 62;
the piston 64 is in sliding and sealing connection in the vertical pipe 62, and the bottom of the piston 64 is fixedly connected with the upper surface of the sealing cover 63 through a return spring 631;
the controller controls the operation of parts inside the high-voltage frequency converter;
in the prior art, a water circulation device 4 is arranged outside a high-voltage frequency converter, a water pump, a water tank and a water-water heat exchanger are arranged inside the water circulation device 4, a water cooling plate 3 is detachably connected in the high-voltage frequency converter, a power unit element is arranged on the water cooling plate 3 through a nut, a water outlet pipe 2 and a water inlet pipe 1 are respectively in threaded connection with a water inlet and a water outlet of the water cooling plate 3, and one sides of the water outlet pipe 2 and the water inlet pipe 1, which are far away from the water cooling plate 3, are communicated with the water-water heat exchanger;
when the high-voltage frequency converter works, the controller controls the water pump to start, so that the water pump drives cold water in the water tank to flow into the water cooling plate 3 through the water inlet pipe 1, heat of the power unit element is transferred to the cold water through the water cooling plate 3, the cold water carries heat to flow into the water outlet pipe 2 and flows into the water-water heat exchanger along the water outlet pipe 2, in the process, the cold water absorbs heat to become hot water, and the water-water heat exchanger discharges heat in the hot water to the outside, so that the hot water is changed into cold water and is transported into the water tank, and the water has a circulating effect in the whole water cooling process;
however, the water is heated to generate steam, so that the water is continuously concentrated, and harmful impurities originally contained in the water are concentrated in the pipe to form dirt, and because the heating intensity of each part in the pipe is different, the concentration degree of certain local water is higher, one end of the water outlet pipe 2 is close to the water-water heat exchanger, the other end is close to the water cooling plate 3, the water cooling plate 3 absorbs heat, a cold source is arranged in the water-water heat exchanger, and therefore, the temperature of the inner part of the water outlet pipe 2 is higher than the temperature of the inner part of the water outlet pipe 3, dirt is easy to generate in the water outlet pipe 2, the smoothness of the water in the whole water cooling process is influenced, and the heat dissipation effect in the high-voltage frequency converter is influenced; in the prior art, dirt in a pipe is cleaned by a physical or chemical method, the cleaning ball of the physical method is difficult to remove the stubborn dirt in the pipe, and the chemical agent of the chemical method can cause corrosion phenomenon on the inner wall of the pipe;
in the invention, an electromagnetic valve 5 is arranged on a water outlet pipe 2, the electromagnetic valve 5 is positioned at the position of the water outlet pipe 2 close to a water circulation device 4, and one side port of the electromagnetic valve 5 close to the water circulation device 4 is in threaded connection with the water outlet pipe 2, so that the electromagnetic valve 5 is in detachable connection with the water outlet pipe 2, one side port of the electromagnetic valve 5 far away from the water circulation device 4 is in threaded connection with a transverse pipe 6, and one side port of the transverse pipe 6 close to a water cooling plate 3 is in threaded connection with the water outlet pipe 2, so that the transverse pipe 6 and the electromagnetic valve 5 are positioned between the water cooling plate 3 and the water circulation device 4, and the transverse pipe 6, the electromagnetic valve 5 and the water outlet pipe 2 are in detachable connection, a filter plate 61 is fixedly connected inside the transverse pipe 6, a vertical pipe 62 is arranged at the bottom of the filter plate 61, the upper port of the vertical pipe 62 is fixedly connected with the bottom of the transverse pipe 6, the inside of the vertical pipe 62 is communicated with the inside of the transverse pipe 6, a cover 63 is positioned at the bottom of the transverse pipe 62 and is in threaded connection with the outside of the vertical pipe 62, the inside of the vertical pipe 62 is in sliding sealing connection with a piston 64, and the piston 64 and the inside of the vertical pipe 62 is fixedly connected with the cover 63 through a reset spring 631;
when the water-cooling device works, the controller controls the water pump to start, so that water circularly rotates among the water inlet pipe 1, the water cooling plate 3, the water outlet pipe 2 and the water-water heat exchanger, the water cooling plate 3 is fixedly connected with the power unit element, when the water passes through the water cooling plate 3, the water flows into the water-water heat exchanger in the water outlet pipe 2 with the heat of the power unit element, in the process, the water in the water outlet pipe 2 generates water vapor due to heating, and harmful impurities in the water are concentrated, so that dirt is formed on the pipe wall;
in order to remove dirt on the pipe wall, firstly, the controller controls the electromagnetic valve 5 to be closed, when the electromagnetic valve 5 is opened and suddenly closed, water flow can generate pressure on the electromagnetic valve 5 and the pipe wall, the speed of the water flow can reach the maximum under the action of inertia of the subsequent water flow, and the water flow generates shock waves in the pipe, like a hammer is knocked, so that the water forms a water hammer effect in the transverse pipe 6, dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect, and the controller controls the electromagnetic valve 5 to be closed after a period of time, and the dirt just formed is not high in adhesion strength with the pipe wall, so that the shock waves are convenient for separating the dirt on the pipe wall;
meanwhile, in order to slow down the impact of the water hammer effect on the pipe wall, the electromagnetic valve 5 and the filter plate 61, when rapid water flow rushes to the filter plate 61, part of the water flow flows into the vertical pipe 62, the water flow can press the piston 64 to slide in the vertical pipe 62, so that the first return spring 631 is changed from a relaxed state to a compressed state, and the impact wave of the water flow is buffered in the vertical pipe 62 through the piston 64 and the first return spring 631, so that the flowing speed of the water flow in the vertical pipe 62 is slowed down;
secondly, after the water flow stably flows, the water flow drives suspended dirt to move to the filter plate 61, the filter plate 61 blocks the dirt from moving, when the dirt moves to the upper part of the vertical pipe 62, the dirt suspended in the water flow drops to the upper surface of the piston 64 under the action of gravity, when the high-pressure frequency converter is stopped, the water in the water outlet pipe 2 and the water inlet pipe 1 is discharged, the sealing cover 63 is rotated, the sealing cover 63 is separated from the bottom of the vertical pipe 62, the sealing cover 63 drives the piston 64 to be separated from the inside of the vertical pipe 62 through the first reset spring 631, then the dirt on the surface of the piston 64 is cleaned, after the piston 64 is cleaned, the piston 64 is inserted into the vertical pipe 62, and the sealing cover 63 is installed at the bottom of the vertical pipe 62, so that the whole water cooling process runs completely again;
according to the invention, the transverse pipe 6, the electromagnetic valve 5, the vertical pipe 62 and the piston 64 are arranged, the electromagnetic valve 5 is controlled by the controller to be closed firstly, when the electromagnetic valve 5 is opened and is closed suddenly, water flow can generate pressure on the electromagnetic valve 5 and the pipe wall, and the subsequent water flow generates shock waves in the pipe under the action of inertia, so that the water forms a water hammer effect in the transverse pipe 6 just like a hammer is knocked, and dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect; secondly, after the water flow smoothly flows, the water flow drives the suspended dirt to move towards the filter plate 61, the filter plate 61 blocks the dirt from moving, and when the dirt moves above the vertical pipe 62, the dirt suspended in the water flow falls onto the upper surface of the piston 64 under the action of gravity; after the work is finished, the sealing cover 63 is rotated, so that the sealing cover 63 drives the piston 64 to be separated from the vertical pipe 62 through the first reset spring 631, and dirt on the surface of the piston 64 is cleaned; compared with the prior cleaning ball or chemical agent for cleaning dirt in the pipe, the cleaning ball or chemical agent reduces the residual dirt in the pipe or the corrosion caused to the inner wall of the pipe, improves the smoothness of water in the whole water cooling process, and improves the heat dissipation effect in the high-voltage frequency converter.
As an embodiment of the present invention, as shown in fig. 3, the inner diameter of the transverse tube 6 is the same as the diameter of the water outlet tube 2, the wall thickness of the transverse tube 6 is greater than the wall thickness of the water outlet tube 2, the transverse tube 6 and the water outlet tube 2 are made of the same material, and the material is stainless steel;
as shown in fig. 3 and fig. 5, the filter plates 61 are obliquely arranged in the transverse tube 6, the filter plates 61 consist of filter screens and circular ring plates, and the surface area covered by the filter plates 61 is larger than the caliber surface area of the pipeline;
as shown in fig. 5 and as shown in fig. 6, one side of the filter plate 61, which is close to the electromagnetic valve 5, is fixedly connected with the inner wall of the transverse tube 6 through a second return spring 51, the second return spring 51 is uniformly distributed between the filter plate 61 and the inner wall of the transverse tube 6, and the second return spring 51 is used for relieving impact force caused by water flow;
as shown in fig. 5 and as shown in fig. 6, the first return spring 631 and the second return spring 51 are made of a rigid material, the rigid material is 65 manganese steel, and the 65 manganese steel has the characteristics of corrosion resistance, high toughness, high temperature resistance and the like;
in the invention, the inner caliber of the transverse pipe 6 is the same as that of the water outlet pipe 2 so as to ensure that the flow flux of water is the same when the water flows through the water outlet pipe 2 and the transverse pipe 6, and the water hammer effect in the pipeline is stronger when the water is closer to the electromagnetic valve 5, so that on one hand, the strength of the water hammer is relieved from the source through the vertical pipe 62, the piston 64 and the first return spring 631, the damage of shock waves to the pipeline is reduced, on the other hand, the wall thickness of the transverse pipe 6 is set to be larger than that of the water outlet pipe 2, and the wall thickness of the transverse pipe 6 is increased so as to increase the strength of the transverse pipe 6, and the two ends of the transverse pipe 6 are in threaded connection with the electromagnetic valve 5 and the water outlet pipe 2, so that after the water hammer is used for a long time, the replacement of the new transverse pipe 6 is convenient;
meanwhile, the filter plate 61 is obliquely arranged in the transverse tube 6, the filter plate 61 consists of a filter screen and a circular ring plate, the filter screen is fixedly connected with the circular ring plate, the inclined filter screen surface area is larger than the caliber area of a pipeline, the circular ring plate is fixedly connected with the inner wall of the transverse tube 6 through a second return spring 51, the filter plate 61 moves in the transverse tube 6 through the elasticity of the second return spring 51, when water flow impacts the filter screen, the filter plate 61 moves in the transverse tube 6 through the elasticity of the second return spring 51, so that the impact force caused by the water flow is relieved, the second return spring 51 drives the filter plate 61 to vibrate, dirt on the filter plate 61 is released, the condition that the dirt accumulates on the filter plate 61 is reduced, and when the water flow stably flows, the inclined filter plate 61 is favorable for accelerating the dirt to drop into the vertical tube 62 under the action of gravity; and the first return spring 631 and the second return spring 51 are made of a rigid material, such as a 65 manganese steel material, and have the characteristics of corrosion resistance, high toughness, high temperature resistance and the like, so that the service lives of the first return spring 631 and the second return spring 51 are prolonged.
As an embodiment of the present invention, as shown in fig. 4 and fig. 5, a guiding block 621 is fixedly connected to the inside of the standpipe 62, and the guiding block 621 is located at one side of the standpipe 62 away from the cover 63, and the upper surface of the guiding block 621 is communicated with the bottom of the filter plate 61, and the guiding block 621 is used for guiding dirt to flow into the standpipe 62;
as shown in fig. 5, the upper surface and the bottom surface of the guide block 621 are inclined toward the central axis of the guide block 621, and the projection length of the upper surface and the bottom surface of the guide block 621 is the same;
as shown in fig. 4 and fig. 5, the upper surface of the piston 64 is fixedly connected with a fixing rod 641, one side of the fixing rod 641 away from the piston 64 is fixedly connected with a blocking plate 642, the blocking plate 642 is conical, and the conical shape can reduce the impact force of water on the blocking plate 642;
as shown in fig. 7, the inner wall of the bottom of the blocking plate 642 is inclined toward the central axis of the fixed rod 641, and a collecting groove 643 is formed on the inner wall of the bottom of the blocking plate 642, and the collecting groove 643 is a circular notch, which is used for improving the dirt collecting capability of the collecting groove 643;
in the invention, the guide block 621 is fixedly connected to the connection part of the vertical pipe 62 and the transverse pipe 6, the upper surface and the bottom surface of the guide block 621 incline towards the central axis of the guide block 621, when dirt flows from the transverse pipe 6 to the vertical pipe 62, the dirt quickly flows into the vertical pipe 62 along the inclined upper surface of the guide block 621 under the action of gravity, and the inclined bottom surface of the guide block 621 can prevent the dirt from flowing back into the transverse pipe 6 from the vertical pipe 62; and fixed rod 641 is fixedly connected to the upper surface of piston 64, the top end of fixed rod 641 is fixedly connected with baffle plate 642, and baffle plate 642 is conical in shape, so that water flow moves downwards along the surface of baffle plate 642, the impact force of water on the surface of baffle plate 642 is reduced, the inner wall of the bottom of baffle plate 642 inclines towards the central axis of fixed rod 641, an included angle is formed between the bottom of baffle plate 642 and fixed rod 641, when water flows in vertical pipe 62, the included angle part is used for collecting dirt in water, the dirt collecting capacity of piston 64 is improved, the dirt flying in vertical pipe 62 is reduced, and collecting groove 643 is formed in the inner wall of baffle plate 642, so that dirt in water stays in collecting groove 643, after working is finished, piston 64 moves out from vertical pipe 62 to the outside through fixed rod 641, baffle plate 642 and collecting groove 643, and the dirt collecting effect of piston 64 is further improved.
The working method of the high-voltage frequency converter with the water cooling structure is suitable for the high-voltage frequency converter with the water cooling structure, and comprises the following steps of;
s1: firstly, a controller controls a water pump to start, so that water circularly rotates among a water inlet pipe 1, a water cooling plate 3, a water outlet pipe 2 and a water-water heat exchanger, and when the water passes through the water cooling plate 3, the water carries heat of a power unit element and flows into the water-water heat exchanger in the water outlet pipe 2;
s2: then after a period of time, the controller controls the electromagnetic valve 5 to be closed, water can generate pressure on the electromagnetic valve 5 and the pipe wall, and the subsequent water generates shock waves in the pipe under the action of inertia, and dirt on the pipe wall is separated from the pipe wall under the action of the shock waves;
s3: then after the horizontal steady flow, the water moves with the suspended dirt towards the filter plate 61, and the filter plate 61 blocks the movement of the dirt, and when the dirt moves above the standpipe 62, the dirt suspended in the water falls to the upper surface of the piston 64 under the action of gravity;
s4: finally, when the water outlet pipe 2 and the water inlet pipe 1 are stopped, the water in the water outlet pipe 2 and the water inlet pipe 1 is discharged, and the sealing cover 63 is separated from the bottom of the vertical pipe 62, so that the sealing cover 63 drives the piston 64 to be separated from the inside of the vertical pipe 62 through the first return spring 631, dirt on the surface of the piston 64 is cleaned, after the cleaning of the piston 64 is finished, the piston 64 is inserted into the vertical pipe 62, and the sealing cover 63 is installed at the bottom of the vertical pipe 62.
The specific working procedure is as follows:
initially, a port on one side of the electromagnetic valve 5 close to the water circulation device 4 is in threaded connection with the water outlet pipe 2, a port on one side of the electromagnetic valve 5 far away from the water circulation device 4 is in threaded connection with the transverse pipe 6, and a port on one side of the transverse pipe 6 close to the water cooling plate 3 is in threaded connection with the water outlet pipe 2, so that the transverse pipe 6, the electromagnetic valve 5 and the water outlet pipe 2 are all in detachable connection, and the electromagnetic valve 5 and the transverse pipe 6 can be replaced;
when the water-cooling device works, the controller controls the water pump to start, so that water circularly rotates among the water inlet pipe 1, the water cooling plate 3, the water outlet pipe 2 and the water-water heat exchanger, the water cooling plate 3 is fixedly connected with the power unit element, when the water passes through the water cooling plate 3, the water flows into the water-water heat exchanger in the water outlet pipe 2 with the heat of the power unit element, in the process, the water in the water outlet pipe 2 generates water vapor due to heating, and harmful impurities in the water are concentrated, so that dirt is formed on the pipe wall; firstly, the controller controls the electromagnetic valve 5 to be closed, when the electromagnetic valve 5 is opened and suddenly closed, water flow can generate pressure on the electromagnetic valve 5 and the pipe wall, the speed of the subsequent water flow can reach the maximum under the action of inertia, and the water flow generates shock waves in the pipe just like a hammer is knocked, so that water forms a water hammer effect in the transverse pipe 6, dirt on the pipe wall is separated from the pipe wall under the action of the water hammer effect; secondly, after the water flow smoothly flows, the water flow drives the suspended dirt to move towards the filter plate 61, the filter plate 61 blocks the dirt from moving, and when the dirt moves above the vertical pipe 62, the dirt suspended in the water flow falls onto the upper surface of the piston 64 under the action of gravity, so that the fixed rod 641, the blocking plate 642 and the collecting groove 643 on the surface of the piston 64 collect the dirt;
after the end, when the high-voltage frequency converter is shut down, the water in the water outlet pipe 2 and the water inlet pipe 1 is discharged, and the sealing cover 63 is rotated to separate the sealing cover 63 from the bottom of the vertical pipe 62, so that the sealing cover 63 drives the piston 64 to separate from the inside of the vertical pipe 62 through the first return spring 631, dirt on the surface of the piston 64 is cleaned, after the cleaning of the piston 64 is finished, the piston 64 is inserted into the vertical pipe 62, and the sealing cover 63 is installed at the bottom of the vertical pipe 62, so that the whole water cooling process runs completely again.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a high-voltage inverter with water cooling structure, this high-voltage inverter is inside to include water cooling plant, water cooling plant includes inlet tube (1), outlet pipe (2), water cooling board (3), water circulating device (4) and cleaning device, water cooling board (3) surface threaded connection has power unit, inlet tube (1) and water cooling board (3) water inlet threaded connection, and outlet pipe (2) and water cooling board (3) delivery port threaded connection, and one side that water cooling board (3) were kept away from to inlet tube (1) and outlet pipe (2) all links firmly with water circulating device (4), water circulating device (4) are used for supplying water and reducing the effect of water temperature, a serial communication port, cleaning device and outlet pipe (2) threaded connection, cleaning device includes:
the electromagnetic valve (5) is in threaded connection with the water outlet pipe (2) and is positioned at one side of the water outlet pipe (2) close to the water circulation device (4);
the transverse pipe (6) is in threaded connection with the electromagnetic valve (5) and is positioned at one side of the water outlet pipe (2) close to the water cooling plate (3);
the filter plates (61) are fixedly connected inside the transverse pipes (6) and are positioned on one side, close to the electromagnetic valve (5), of the transverse pipes (6);
the vertical pipe (62) is fixedly connected with the transverse pipe (6) and is positioned at the bottom of the filter plate (61);
the sealing cover (63) is positioned at the bottom of the vertical pipe (62) and is in threaded connection with the outer side of the vertical pipe (62);
the piston (64) is in sliding and sealing connection in the vertical pipe (62), and the bottom of the piston (64) is fixedly connected with the upper surface of the sealing cover (63) through a return spring (631);
and the controller is used for controlling the operation of parts in the high-voltage frequency converter.
2. The high-voltage frequency converter with water cooling structure according to claim 1, wherein: the inner caliber of the transverse pipe (6) is the same as the caliber of the water outlet pipe (2), and the wall thickness of the transverse pipe (6) is larger than that of the water outlet pipe (2).
3. The high-voltage frequency converter with water cooling structure according to claim 2, wherein: the filter plates (61) are obliquely arranged inside the transverse tube (6).
4. A high voltage inverter with water cooling structure according to claim 3, wherein: one side of the filter plate (61) close to the electromagnetic valve (5) is fixedly connected with the inner wall of the transverse tube (6) through a second return spring (51).
5. The high-voltage inverter with water cooling structure according to claim 4, wherein: and the first return spring (631) and the second return spring (51) are made of rigid materials.
6. The high-voltage frequency converter with water cooling structure according to claim 1, wherein: the inside of the vertical pipe (62) is fixedly connected with a guide block (621), and the guide block (621) is positioned at one side of the vertical pipe (62) far away from the sealing cover (63).
7. The high-voltage inverter with water cooling structure according to claim 6, wherein: the upper surface and the bottom surface of the guide block (621) are inclined toward the central axis of the guide block (621).
8. The high-voltage inverter with water cooling structure according to claim 7, wherein: the upper surface of the piston (64) is fixedly connected with a fixing rod (641), and one side, far away from the piston (64), of the fixing rod (641) is fixedly connected with a blocking plate (642).
9. The high-voltage inverter with water cooling structure according to claim 8, wherein: the inner wall of the bottom of the blocking plate (642) inclines towards the central axis direction of the fixed rod (641), and a collecting groove (643) is formed in the inner wall of the blocking plate (642).
10. A working method of a high-voltage frequency converter with a water cooling structure is characterized by comprising the following steps of: the method is applicable to the high-voltage frequency converter with the water cooling structure as claimed in any one of the claims 1-9, and comprises the following steps:
s1: firstly, a controller controls a water pump to start, so that water circularly rotates among a water inlet pipe (1), a water cooling plate (3), a water outlet pipe (2) and a water-water heat exchanger, and when the water passes through the water cooling plate (3), the water carries heat of a power unit element and flows into the water-water heat exchanger in the water outlet pipe (2);
s2: then after a period of time, the controller controls the electromagnetic valve (5) to be closed, water can generate pressure on the electromagnetic valve (5) and the pipe wall, and the subsequent water generates shock waves in the pipe under the action of inertia, and dirt on the pipe wall is separated from the pipe wall under the action of the shock waves;
s3: then after the horizontal steady flow, the water moves with the suspended dirt to the filter plate (61), the filter plate (61) blocks the dirt from moving, and when the dirt moves above the vertical pipe (62), the dirt suspended in the water falls to the upper surface of the piston (64) under the action of gravity;
s4: finally, when the water dispenser is stopped, water in the water outlet pipe (2) and the water inlet pipe (1) is discharged, and the rotary sealing cover (63) is separated from the bottom of the vertical pipe (62), so that the sealing cover (63) drives the piston (64) to be separated from the inside of the vertical pipe (62) through a return spring (631), dirt on the surface of the piston (64) is cleaned, after the piston (64) is cleaned, the piston (64) is inserted into the vertical pipe (62), and the sealing cover (63) is installed at the bottom of the vertical pipe (62).
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