CN110829456B - Little electric wire netting reactive compensation cabinet - Google Patents
Little electric wire netting reactive compensation cabinet Download PDFInfo
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- CN110829456B CN110829456B CN201911206632.2A CN201911206632A CN110829456B CN 110829456 B CN110829456 B CN 110829456B CN 201911206632 A CN201911206632 A CN 201911206632A CN 110829456 B CN110829456 B CN 110829456B
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- cabinet body
- air
- filter screen
- air inlet
- inlet pipe
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention belongs to the technical field of electric cabinets, and particularly relates to a micro-grid reactive power compensation cabinet which comprises a cabinet body; the bottom of the cabinet body is provided with a foot support, the side surface of the cabinet body is provided with a cabinet door, and the cabinet door is hermetically connected with the cabinet body after being closed; a pair of air inlet pipes are arranged in the cabinet body, and penetrate through the bottom of the cabinet body to be communicated with the outside atmosphere; the top of the air inlet pipe is communicated with a group of copper air outlet pipes, and the air outlet pipes penetrate through the top of the cabinet body and are communicated with the outside atmosphere; the air inlet pipe is fixedly connected with a fan through a support, and the fan is connected with a power supply through a controller; a first filter screen is fixedly connected in the air inlet pipe at the lower part of the fan; an air plate is hinged to the side wall of the air inlet pipe above the fan, and one end of the air plate penetrates through and extends to the outer side of the air inlet pipe; a travel switch is arranged at the outer side of the air inlet pipe and at the corresponding position above the air plate; when the air speed of the air inlet pipe is reduced, the air plate drives the travel switch to control the fan to rotate reversely when rotating, so that the first filter screen is subjected to back blowing, dust of the first filter screen is cleaned, and the cooling efficiency in the cabinet body is improved.
Description
Technical Field
The invention belongs to the technical field of electric cabinets, and particularly relates to a micro-grid reactive power compensation cabinet.
Background
The micro-grid is a small power generation and distribution system which is composed of a distributed power supply, an energy storage device, an energy conversion device, a load, a monitoring and protecting device and the like.
The micro-grid aims to realize flexible and efficient application of distributed power supplies, solve the problem of grid connection of the distributed power supplies which are large in quantity and various in form, develop and extend the micro-grid, can fully promote large-scale access of the distributed power supplies and renewable energy sources, realize high-reliability supply of various energy source forms of loads, is an effective mode for realizing an active power distribution network, and enables a traditional power grid to be transited to a smart power grid.
Reactive compensation is called reactive power compensation, and is a technology which plays a role in improving the power factor of a power grid in an electric power supply system, reduces the loss of a power supply transformer and a transmission line, improves the power supply efficiency and improves the power supply environment. The reactive power compensation device is in an indispensable and very important place in the power supply system. The compensation device is reasonably selected, so that the loss of the power grid can be reduced to the maximum extent, and the quality of the power grid is improved. Conversely, improper selection or use may cause many factors such as power supply system, voltage fluctuation, harmonic increase, and the like.
Be located and install accurate electrical components in outdoor reactive power compensator cabinet, a lot of heats that the during operation produced, blow in the air through the fan among the prior art to the cabinet body and cool down, but contain a large amount of dusts in the outdoor air, accidents such as the dust gathering causes the short circuit easily on electrical components surface, conflagration, seriously influences electrical components's life, endangers electric wire netting safe operation.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that a precise electric appliance element is installed in an outdoor reactive power compensation cabinet and a lot of heat is generated during working, air is blown into a cabinet body through a fan to cool in the prior art, but outdoor air contains a large amount of dust which is gathered on the surface of the electric appliance element to easily cause accidents such as short circuit, fire and the like, the service life of the electric appliance element is seriously influenced, and the safe operation of a power grid is damaged, the invention provides the micro-grid reactive power compensation cabinet.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a micro-grid reactive power compensation cabinet, which comprises a cabinet body; the bottom of the cabinet body is provided with a foot support, the side surface of the cabinet body is provided with a cabinet door, and the cabinet door is hermetically connected with the cabinet body after being closed; a pair of air inlet pipes are arranged in the cabinet body and penetrate through the bottom of the cabinet body to be communicated with the outside atmosphere; the top of the air inlet pipe is communicated with a group of copper air outlet pipes, and the air outlet pipes penetrate through the top of the cabinet body and then are communicated with the outside atmosphere; the air inlet pipe is fixedly connected with a fan through a support, and the fan is connected with a power supply through a controller; a first filter screen is fixedly connected in the air inlet pipe at the lower part of the fan; an air plate is hinged to the side wall of the air inlet pipe above the fan, and one end of the air plate penetrates through the air inlet pipe and extends to the outer side of the air inlet pipe; a travel switch is arranged on the outer side of the air inlet pipe and corresponds to the position above the air plate, and when one end of the air plate positioned in the air inlet pipe rotates downwards, the travel switch is driven, so that the fan is controlled by the controller to rotate reversely for a period of time, the blockage of the first filter screen is reduced, and the cooling efficiency in the cabinet body is increased; when the cabinet is in work, cold air is sucked from the air inlet pipe through the rotation of the fan and then is discharged from the air outlet pipe, the heat of the cabinet body is transferred to the copper air outlet pipe with better heat conductivity, and then the heat is taken away by the cold air in the air outlet pipe, so that the cooling efficiency in the cabinet body is ensured, and meanwhile, the influence on the normal use of electrical elements caused by a large amount of dust carried when the fan directly blows and dissipates heat in the cabinet body is avoided; when a filter screen is because of the too much dust of long-time filtered air adhesion, the wind speed of air-supply line reduces, and then makes the aerofoil be located the inside one end of air-supply line and rotate downwards, and then drives travel switch, through controller control fan reversal a period to carry out the blowback to a filter screen, clear up the dust that a filter screen gathered, finally increase the ventilation efficiency of air-supply line, increase the internal cooling efficiency of cabinet.
Preferably, a second filter screen is connected in a sliding manner in the air inlet pipe at the lower part of the first filter screen; a limiting ring is arranged at the bottom of the air inlet pipe, and a group of springs are arranged between the limiting ring and the second filter screen; the second filter screen is pushed to slide downwards when the fan blows back, so that the cleaning effect of the first filter screen and the second filter screen is improved, and the cooling efficiency in the cabinet body is further improved; through No. two filter screens of filter screen cooperation, further increase the cleanliness factor that the air-supply line got into the air, guarantee the heat exchange heat dissipation that the tuber pipe is normal, simultaneously when filter screen and No. two filter screens block up, blowback through the fan, make No. two filter screens lapse, and then increase the ventilation clearance of a filter screen and No. two filter screens, avoid filter screen and No. two filter screens to fold the time and reduce the circulation of air hole, and then further increase the clean effect of a filter screen and No. two filter screens, further increase the internal cooling efficiency of cabinet.
Preferably, a group of light pellets are arranged between the first filter screen and the second filter screen, and the light pellets are driven to jump between the first filter screen and the second filter screen when the fan rotates reversely, so that the cooling efficiency in the cabinet body is further improved; after the second filter screen slides downwards under the back blowing effect that the fan passed, the light bobble constantly beats between a filter screen and No. two filter screens under the effect of wind speed, and then increases the vibration of a filter screen and No. two filter screens, increases clean effect, further increases the internal cooling efficiency of cabinet.
Preferably, a bracket is arranged at the connecting part of the bottom of the air outlet pipe and the air inlet pipe; a silk ribbon is arranged in the air outlet pipe, and the bottom of the silk ribbon is fixedly connected with the bracket; the dust deposition of the air outlet pipe is reduced through ribbon waving, and the cooling efficiency in the cabinet body is further increased; the high-speed airflow is generated in the air outlet pipe when the fan rotates, the silk ribbon is driven to continuously float in the air outlet pipe and sweep the inner wall of the air outlet pipe, the dust adhered to the inner wall of the air outlet pipe is reduced, the heat transfer efficiency of the air outlet pipe is further increased, and therefore the cooling efficiency of the cabinet body is further increased.
Preferably, the top of the silk ribbon is provided with a flexible magnetic strip, the periphery of the air outlet pipe is provided with a magnetic ring at a position opposite to the flexible magnetic strip, and the silk ribbon is prevented from falling and knotting through the matching of the flexible magnetic strip and the magnetic ring, so that the cooling efficiency in the cabinet body is further increased; a group of vent holes are uniformly distributed on the circumference of the pipe wall of the air outlet pipe, and one end of each vent hole close to the axis of the air outlet pipe is inclined upwards; a one-way vent valve is arranged in the vent hole; hot air in the cabinet body is sucked through the one-way vent valve and the vent holes, so that the cooling efficiency in the cabinet body is further increased, dust deposition in the cabinet body is reduced, and the normal work of electrical components is ensured; the flexible magnetic strips are matched with the magnetic rings, so that the silk ribbons can be kept in an extended state, the silk ribbons are prevented from being knotted under the action of wind after falling downwards, the ventilation efficiency of the air outlet pipe and the cleaning efficiency of the inner wall of the air outlet pipe are prevented from being influenced, and the cooling efficiency in the cabinet body is further improved; when high-speed airflow flows upwards in the air outlet pipe, negative pressure is formed at one end of the ventilation hole close to the center of the air outlet pipe, and then hot air in the cabinet body is sucked into the air outlet pipe through the single ventilation valve, so that the cooling efficiency of the cabinet body is further increased, and meanwhile, the influence of external dust-containing air entering the cabinet body on the normal operation of electrical elements is reduced.
Preferably, the outer side of the air outlet pipe is fixedly connected with an air cylinder, and a rodless cavity of the air cylinder is filled with ethanol; the top of a piston rod of the cylinder is fixedly connected with a support rod; a inching switch is arranged at the position of the upper part of the cabinet body corresponding to the support rod; a water collecting tank for collecting rainwater is arranged at the top of the cabinet body; a group of cooling holes are formed in the air outlet pipe, and the upper ends of the cooling holes are communicated with the water collecting tank through water inlet pipes; the water inlet pipe is provided with an electromagnetic valve, and the electromagnetic valve is connected with a power supply through a inching switch; the bottom of the cooling hole is communicated to the outside of the cabinet body through a drain pipe; rainwater is introduced into the cooling holes under the driving of the temperature rise of the air cylinder, so that the cooling efficiency in the cabinet body is further improved; when the internal high temperature of cabinet, the ethanol in the cylinder is gasified after being heated, and the piston rod that promotes the cylinder upwards stretches out, and then drives the inching switch and opens the solenoid valve for in the rainwater of collecting in the catch basin gets into the cooling hole through the inlet tube, further increase the temperature that reduces the tuber pipe, and then further increase the internal cooling efficiency of cabinet.
The invention has the following beneficial effects:
1. according to the microgrid reactive compensation cabinet, when the air speed of the air inlet pipe is reduced, one end, located inside the air inlet pipe, of the air plate rotates downwards to drive the travel switch, the controller controls the fan to rotate reversely for a period of time, so that the first filter screen is subjected to back blowing, dust accumulated on the first filter screen is cleaned, the ventilation efficiency of the air inlet pipe is increased finally, and the cooling efficiency in the cabinet body is increased.
2. According to the micro-grid reactive power compensation cabinet, high-speed airflow is generated in the air outlet pipe when the fan rotates, the ribbons are driven to continuously float in the air outlet pipe and sweep over the inner wall of the air outlet pipe, dust adhered to the inner wall of the air outlet pipe is reduced, the heat transfer efficiency of the air outlet pipe is further improved, and therefore the cooling efficiency in the cabinet body is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is an enlarged view of a portion of FIG. 2 at D;
FIG. 7 is a schematic cross-sectional view of an outlet duct of the present invention;
in the figure: the cabinet comprises a cabinet body 1, a foot support 11, a cabinet door 12, an air inlet pipe 13, an air outlet pipe 14, a fan 15, a first filter screen 16, an air plate 17, a travel switch 18, a second filter screen 2, a limiting ring 19, a light ball 21, a support 22, a ribbon 23, a flexible magnetic strip 24, a magnetic ring 25, a vent hole 26, a one-way vent valve 27, an air cylinder 3, a support rod 31, a inching switch 32, a water collecting tank 33, a cooling hole 34, a water inlet pipe 35, an electromagnetic valve 36 and a water outlet pipe 37.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the microgrid reactive power compensation cabinet of the present invention includes a cabinet body 1; the bottom of the cabinet body 1 is provided with a foot support 11, the side surface of the cabinet body 1 is provided with a cabinet door 12, and the cabinet door 12 is hermetically connected with the cabinet body 1 after being closed; a pair of air inlet pipes 13 are arranged in the cabinet body 1, and the air inlet pipes 13 penetrate through the bottom of the cabinet body 1 and are communicated with the outside atmosphere; the top of the air inlet pipe 13 is communicated with a group of copper air outlet pipes 14, and the air outlet pipes 14 penetrate through the top of the cabinet body 1 and then are communicated with the outside atmosphere; the air inlet pipe 13 is fixedly connected with a fan 15 through a support 22, and the fan 15 is connected with a power supply through a controller; a first filter screen 16 is fixedly connected in the air inlet pipe 13 at the lower part of the fan 15; an air plate 17 is hinged to the side wall of the air inlet pipe 13 above the fan 15, and one end of the air plate 17 penetrates through and extends to the outer side of the air inlet pipe 13; a travel switch 18 is arranged on the outer side of the air inlet pipe 13 and at a position corresponding to the upper part of the air plate 17, one end of the air plate 17 positioned in the air inlet pipe 13 rotates downwards to drive the travel switch 18, and then the controller controls the fan 15 to rotate reversely for a period of time, so that the blockage of the first filter screen 16 is reduced, and the cooling efficiency in the cabinet body 1 is increased; when the cooling cabinet works, cold air is sucked from the air inlet pipe 13 through the rotation of the fan 15 and then is discharged from the air outlet pipe 14, heat of the cabinet body 1 is transferred to the copper air outlet pipe 14 with better heat conductivity, and then the heat is taken away by the cold air in the air outlet pipe 14, so that the cooling efficiency in the cabinet body 1 is ensured, and meanwhile, the influence on the normal use of electrical elements caused by a large amount of dust carried when the fan 15 directly blows air to dissipate heat in the cabinet body 1 is avoided; when the first filter screen 16 is adhered with excessive dust due to long-time air filtration, the air speed of the air inlet pipe 13 is reduced, so that one end of the air plate 17, which is positioned inside the air inlet pipe 13, rotates downwards, the travel switch 18 is driven, the fan 15 is controlled by the controller to rotate reversely for a period of time, the first filter screen 16 is subjected to back blowing, the dust accumulated on the first filter screen 16 is cleaned, the ventilation efficiency of the air inlet pipe 13 is increased finally, and the cooling efficiency in the cabinet body 1 is increased.
As an embodiment of the invention, a second filter screen 2 is slidably connected in the air inlet pipe 13 at the lower part of the first filter screen 16; a limiting ring 19 is arranged at the bottom of the air inlet pipe 13, and a group of springs are arranged between the limiting ring 19 and the second filter screen 2; the second filter screen 2 is pushed to slide downwards when the fan 15 performs back blowing, so that the cleaning effect of the first filter screen 16 and the second filter screen 2 is improved, and the cooling efficiency in the cabinet body 1 is further improved; through No. 16 filter screens 2 of filter screen cooperation, further increase the cleanliness factor that air-supply line 13 got into the air, guarantee the heat exchange heat dissipation that tuber pipe 14 is normal, simultaneously when filter screen 16 blocks up with No. two filter screens 2, blowback through fan 15, make No. two filter screens 2 lapse, and then increase filter screen 16 and No. two filter screen 2's ventilation gap, reduce the circulation of air hole when avoiding a filter screen 16 and No. two filter screens 2 to superpose, and then further increase the clean effect of a filter screen 16 and No. two filter screens 2, further increase the cooling efficiency in the cabinet body 1.
As an embodiment of the invention, a group of light pellets 21 is arranged between the first filter screen 16 and the second filter screen 2, and the light pellets 21 are driven to jump between the first filter screen 16 and the second filter screen 2 when the fan 15 rotates reversely, so that the cooling efficiency in the cabinet body 1 is further increased; after the second filter screen 2 slides downwards under the back blowing effect that the fan 15 passed, the light pellet 21 constantly beats between the first filter screen 16 and the second filter screen 2 under the effect of wind speed, and then increases the vibration of the first filter screen 16 and the second filter screen 2, increases clean effect, further increases the cooling efficiency in the cabinet body 1.
As an embodiment of the present invention, a bracket 22 is provided at a connection portion between the bottom of the air outlet pipe 14 and the air inlet pipe 13; a ribbon 23 is arranged in the air outlet pipe 14, and the bottom of the ribbon 23 is fixedly connected with the bracket 22; the ribbon 23 is used for reducing the dust deposition of the air outlet pipe 14, so that the cooling efficiency in the cabinet body 1 is further improved; when the fan 15 rotates, high-speed airflow is generated in the air outlet pipe 14, the ribbon 23 is driven to continuously float in the air outlet pipe 14 and sweep the inner wall of the air outlet pipe 14, dust adhered to the inner wall of the air outlet pipe 14 is reduced, heat transfer efficiency of the air outlet pipe 14 is further improved, and therefore cooling efficiency in the cabinet body 1 is further improved.
As an embodiment of the invention, the top of the ribbon 23 is provided with the flexible magnetic strip 24, the magnetic ring 25 is arranged at the position of the periphery of the air outlet pipe 14 opposite to the flexible magnetic strip 24, and the ribbon 23 is prevented from dropping and knotting through the matching of the flexible magnetic strip 24 and the magnetic ring 25, so that the cooling efficiency in the cabinet body 1 is further increased; a group of vent holes 26 are uniformly distributed on the circumference of the pipe wall of the air outlet pipe 14, and one end of each vent hole 26 close to the axis of the air outlet pipe 14 inclines upwards; a one-way vent valve 27 is arranged in the vent hole 26; hot air in the cabinet body 1 is sucked through the one-way vent valve 27 and the vent hole 26, so that the cooling efficiency in the cabinet body 1 is further increased, dust deposition in the cabinet body 1 is reduced, and the normal work of electrical components is ensured; the flexible magnetic strips 24 are matched with the magnetic rings 25, so that the silk ribbons 23 can be kept in an extended state, the silk ribbons 23 are prevented from being knotted under the action of wind power after falling downwards, the ventilation efficiency of the air outlet pipe 14 and the cleaning efficiency of the inner wall of the air outlet pipe 14 are prevented from being influenced, and the cooling efficiency in the cabinet body 1 is further improved; when high-speed airflow flows upwards in the air outlet pipe 14, negative pressure is formed at one end of the ventilation hole 26 close to the center of the air outlet pipe 14, so that hot air in the cabinet body 1 is sucked into the air outlet pipe 14 through the single ventilation valve, the cooling efficiency of the cabinet body 1 is further increased, and meanwhile, the influence of external dust-containing air entering the cabinet body 1 on the normal operation of electrical elements is reduced.
As an embodiment of the invention, the air outlet pipe 14 is fixedly connected with the air cylinder 3, and a rodless cavity of the air cylinder 3 is filled with ethanol; the top of a piston rod of the cylinder 3 is fixedly connected with a supporting rod 31; a inching switch 32 is arranged at the position, corresponding to the support rod 31, of the upper part of the cabinet body 1; a water collecting tank 33 for collecting rainwater is arranged at the top of the cabinet body 1; a group of cooling holes 34 are formed in the air outlet pipe 14, and the upper ends of the cooling holes 34 are communicated with the water collecting tank 33 through a water inlet pipe 35; the water inlet pipe 35 is provided with an electromagnetic valve 36, and the electromagnetic valve 36 is connected with a power supply through a inching switch 32; the bottom of the cooling hole 34 is communicated to the outside of the cabinet 1 through a drain pipe 37; the temperature of the cylinder 3 is increased to drive the cooling holes 34 to be filled with rainwater, so that the temperature reduction efficiency in the cabinet body 1 is further improved; when the internal high temperature of cabinet 1, the ethanol in the cylinder 3 is gasified after being heated, promotes cylinder 3's piston rod upwards to stretch out, and then drives inching switch 32 and opens solenoid valve 36 for the rainwater of collecting in the catch basin 33 gets into cooling hole 34 through inlet tube 35, further increases the temperature that reduces tuber pipe 14, and then further increases the interior cooling efficiency of the cabinet body 1.
When the cooling cabinet works, cold air is sucked from the air inlet pipe 13 through the rotation of the fan 15 and then is discharged from the air outlet pipe 14, heat of the cabinet body 1 is transferred to the copper air outlet pipe 14 with better heat conductivity, and then the heat is taken away by the cold air in the air outlet pipe 14, so that the cooling efficiency in the cabinet body 1 is ensured, and meanwhile, the influence on the normal use of electrical elements caused by a large amount of dust carried when the fan 15 directly blows air to dissipate heat in the cabinet body 1 is avoided; when the first filter screen 16 is adhered with excessive dust due to long-time air filtration, the air speed of the air inlet pipe 13 is reduced, so that one end of the air plate 17, which is positioned inside the air inlet pipe 13, rotates downwards to drive the travel switch 18, the fan 15 is controlled by the controller to rotate reversely for a period of time, and the first filter screen 16 is subjected to back blowing to clean the dust accumulated on the first filter screen 16, so that the ventilation efficiency of the air inlet pipe 13 is increased, and the cooling efficiency in the cabinet body 1 is increased; the first filter screen 16 is matched with the second filter screen 2, the cleanliness of air entering the air inlet pipe 13 is further improved, normal heat exchange and heat dissipation of the air outlet pipe 14 are guaranteed, meanwhile, when the first filter screen 16 is blocked with the second filter screen 2, the second filter screen 2 slides downwards through back blowing of the fan 15, the ventilation gap between the first filter screen 16 and the second filter screen 2 is further increased, air circulation holes are reduced when the first filter screen 16 and the second filter screen 2 are overlapped, the cleaning effect of the first filter screen 16 and the second filter screen 2 is further improved, and the cooling efficiency in the cabinet body 1 is further improved; when the fan 15 rotates, high-speed airflow is generated in the air outlet pipe 14, the ribbon 23 is driven to continuously float in the air outlet pipe 14 and sweep the inner wall of the air outlet pipe 14, dust adhered to the inner wall of the air outlet pipe 14 is reduced, and the heat transfer efficiency of the air outlet pipe 14 is further increased, so that the cooling efficiency in the cabinet body 1 is further increased; when the fan 15 rotates, high-speed airflow is generated in the air outlet pipe 14, the ribbon 23 is driven to continuously float in the air outlet pipe 14 and sweep the inner wall of the air outlet pipe 14, dust adhered to the inner wall of the air outlet pipe 14 is reduced, and the heat transfer efficiency of the air outlet pipe 14 is further increased, so that the cooling efficiency in the cabinet body 1 is further increased; the flexible magnetic strips 24 are matched with the magnetic rings 25, so that the silk ribbons 23 can be kept in an extended state, the silk ribbons 23 are prevented from being knotted under the action of wind power after falling downwards, the ventilation efficiency of the air outlet pipe 14 and the cleaning efficiency of the inner wall of the air outlet pipe 14 are prevented from being influenced, and the cooling efficiency in the cabinet body 1 is further improved; when high-speed airflow flows upwards in the air outlet pipe 14, negative pressure is formed at one end of the air vent 26 close to the center of the air outlet pipe 14, so that hot air in the cabinet body 1 is sucked into the air outlet pipe 14 through the single vent valve, the cooling efficiency of the cabinet body 1 is further increased, and meanwhile, the phenomenon that external dust-containing air enters the cabinet body 1 to influence the normal operation of electrical elements is reduced; when the internal high temperature of cabinet 1, the ethanol in the cylinder 3 is gasified after being heated, promotes cylinder 3's piston rod upwards to stretch out, and then drives inching switch 32 and opens solenoid valve 36 for the rainwater of collecting in the catch basin 33 gets into cooling hole 34 through inlet tube 35, further increases the temperature that reduces tuber pipe 14, and then further increases the interior cooling efficiency of the cabinet body 1.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The utility model provides a little electric wire netting reactive compensation cabinet which characterized in that: comprises a cabinet body (1); the bottom of the cabinet body (1) is provided with a foot support (11), the side surface of the cabinet body (1) is provided with a cabinet door (12), and the cabinet door (12) is hermetically connected with the cabinet body (1) after being closed; a pair of air inlet pipes (13) are arranged in the cabinet body (1), and the air inlet pipes (13) penetrate through the bottom of the cabinet body (1) and are communicated with the outside atmosphere; the top of the air inlet pipe (13) is communicated with a group of copper air outlet pipes (14), and the air outlet pipes (14) penetrate through the top of the cabinet body (1) and then are communicated with the outside atmosphere; the air inlet pipe (13) is fixedly connected with a fan (15) through a support (22), and the fan (15) is connected with a power supply through a controller; a first filter screen (16) is fixedly connected in the air inlet pipe (13) at the lower part of the fan (15); an air plate (17) is hinged to the side wall of the air inlet pipe (13) above the fan (15), and one end of the air plate (17) penetrates through and extends to the outer side of the air inlet pipe (13); a travel switch (18) is arranged at a position, corresponding to the upper part of the air plate (17), on the outer side of the air inlet pipe (13), the travel switch (18) is driven when one end, located in the air inlet pipe (13), of the air plate (17) rotates downwards, and then the fan (15) is controlled by the controller to rotate reversely for a period of time, so that the blockage of the first filter screen (16) is reduced, and the cooling efficiency in the cabinet body (1) is improved;
a second filter screen (2) is connected in a sliding manner in the air inlet pipe (13) at the lower part of the first filter screen (16); a limiting ring (19) is arranged at the bottom of the air inlet pipe (13), and a group of springs are arranged between the limiting ring (19) and the second filter screen (2); the second filter screen (2) is pushed to slide downwards when the fan (15) performs back blowing, so that the cleaning effect of the first filter screen (16) and the second filter screen (2) is improved, and the cooling efficiency in the cabinet body (1) is further improved;
a group of light small balls (21) are arranged between the first filter screen (16) and the second filter screen (2), and the light small balls (21) are driven to jump between the first filter screen (16) and the second filter screen (2) when the fan (15) rotates reversely, so that the cooling efficiency in the cabinet body (1) is further improved;
a bracket (22) is arranged at the connecting part of the bottom of the air outlet pipe (14) and the air inlet pipe (13); a ribbon (23) is arranged in the air outlet pipe (14), and the bottom of the ribbon (23) is fixedly connected with the bracket (22); the ribbon (23) is floated to reduce the dust deposition of the air outlet pipe (14), so that the cooling efficiency in the cabinet body (1) is further improved;
the top of the ribbon (23) is provided with a flexible magnetic strip (24), the magnetic ring (25) is arranged at the position, opposite to the flexible magnetic strip (24), of the periphery of the air outlet pipe (14), and the ribbon (23) is prevented from falling and knotting through the matching of the flexible magnetic strip (24) and the magnetic ring (25), so that the cooling efficiency in the cabinet body (1) is further increased; a group of vent holes (26) are uniformly distributed on the circumference of the pipe wall of the air outlet pipe (14), and one end of each vent hole (26) close to the axis of the air outlet pipe (14) is inclined upwards; a one-way vent valve (27) is arranged in the vent hole (26); the hot air in the cabinet body (1) is sucked through the one-way ventilation valve (27) matched with the ventilation hole (26), so that the cooling efficiency in the cabinet body (1) is further increased, the dust deposition in the cabinet body (1) is reduced, and the normal work of electrical elements is ensured.
2. The microgrid reactive compensation cabinet of claim 1, characterized in that: the outer side of the air outlet pipe (14) is fixedly connected with an air cylinder (3), and a rodless cavity of the air cylinder (3) is filled with ethanol; the top of a piston rod of the cylinder (3) is fixedly connected with a support rod (31); a inching switch (32) is arranged at the position of the upper part of the cabinet body (1) corresponding to the support rod (31); a water collecting tank (33) for collecting rainwater is arranged at the top of the cabinet body (1); a group of cooling holes (34) are formed in the air outlet pipe (14), and the upper ends of the cooling holes (34) are communicated with the water collecting tank (33) through water inlet pipes (35); the water inlet pipe (35) is provided with an electromagnetic valve (36), and the electromagnetic valve (36) is connected with a power supply through a inching switch (32); the bottom of the cooling hole (34) is communicated to the outside of the cabinet body (1) through a drain pipe (37); the temperature rise of the cylinder (3) drives the cooling holes (34) to be filled with rainwater, so that the cooling efficiency in the cabinet body (1) is further improved.
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| CN201911206632.2A CN110829456B (en) | 2019-11-29 | 2019-11-29 | Little electric wire netting reactive compensation cabinet |
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| CN111555237B (en) * | 2020-05-19 | 2022-04-01 | 湖北鄂电萃宇电器有限公司 | 0.4kV pole low-voltage cable tapping box device and use method thereof |
| CN113466518A (en) * | 2021-05-20 | 2021-10-01 | 李嘉齐 | Multifunctional electric meter for smart power grid |
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Effective date of registration: 20210701 Address after: 276000 muzaosi village, Huangshan Town, Luozhuang District, Linyi City, Shandong Province Applicant after: Linyi Yangao Electric Co.,Ltd. Address before: School of electrical engineering, Tongling University, 1335 Cuihu 4th Road, Tongling City, Anhui Province 244000 Applicant before: Du Qianlong |
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