Electric control box for wind power distributed generation of intelligent power grid

Abstract

The utility model discloses an intelligent power grid wind power distributed power generation electric control box, comprising an electric control box body and an assembly rack, the assembly rack is arranged in the box body, a certain gap is left between the assembly rack and the side wall of the box body, the assembly rack is used for installing various electrical control devices, the assembly rack is provided with a temperature sensor, and the temperature sensor is connected with the assembly rack. The top of the box body is provided with a pumping and discharging type heat dissipation mechanism, the bottom of the box body is provided with a liquid cooling heat exchange mechanism, and according to the utility model, air in an external environment can be sucked in, cooled and then injected into the box body, so that heat dissipation is carried out by utilizing low-temperature airflow, and the cooling and heat exchange efficiency is further enhanced; in addition, a main air pipe and a vertical pipe in the air distribution component are arranged in a distributed mode, comprehensive air sweeping cooling can be conducted on the inner space of the box body, the air distribution pipe and a gooseneck pipe are arranged, the gooseneck pipe can be arranged in a bent mode at will, the position of an air outlet can be flexibly adjusted, and air is supplied to the portion where electrical control devices are installed densely in a concentrated mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to power generation equipment technical field, concretely is a kind of electric cabinet for intelligent power grid wind power distributed generation. BACKGROUND

[0002] At present, the grid connection of most distributed generation in China adopts the direct grid connection of "as soon as possible", which reduces the investment cost, but has a greater impact on the power grid, especially when large-scale photovoltaic power stations are connected to the power grid, which will cause the voltage of the local power grid to fluctuate greatly with the change of sunlight, affecting the safe operation of the power grid and the power quality. The Chinese utility model patent with application number "CN201620178538.6" discloses a distributed generation grid connection optimization system based on intelligent power grid, which integrates various functional modules and switch components, not only alleviates the periodical peak-valley imbalance of the power grid, avoids the impact of photovoltaic power generation on the power grid, improves the income of distributed generation, and maximizes the application of solar and wind power energy. However, the integration of too many electrical control modules in the electric cabinet inevitably requires higher requirements for the heat dissipation performance of the electric cabinet. When the existing electric cabinet heat dissipation device dissipates the heat generated by the internal electronic components during operation, it mostly absorbs the heat inside the cabinet into the top of the cabinet and then discharges it. Since there is a lack of mechanism for quickly dissipating heat at the location where the electronic components are concentrated, the heat dissipation efficiency is not good, which affects the stability and service life of the electronic components. In view of this, the above problems are studied in depth, and the present case is generated. CONTENT OF THE UTILITY MODEL

[0003] In view of the deficiencies of the prior art, the utility model provides an electric cabinet for intelligent power grid wind power distributed generation, which solves the problems raised in the background art.

[0004] To achieve the above purpose, the utility model realizes the following technical scheme: an electric cabinet for intelligent power grid wind power distributed generation, comprising an electric cabinet body and an assembly frame, the assembly frame is arranged in the cabinet and has a certain gap between the cabinet side wall, the assembly frame is used for installing various electrical control devices, a temperature sensor is installed on the assembly frame, an exhaust type heat dissipation mechanism is arranged on the top of the cabinet, a liquid cooling heat exchange mechanism is arranged at the bottom of the cabinet, a booster fan is arranged at the side of the cabinet, the inlet end of the booster fan is communicated with the liquid cooling heat exchange mechanism, and the outlet end extends into the cabinet and is communicated with the air distribution member.

[0005] The air distribution component includes a main air duct, a riser, a distribution duct, a gooseneck pipe, and a regulating valve. The main air duct is located at the lower part of the assembly frame and is arranged in a U-shape. The risers are respectively installed on the main air duct and are arranged in a vertical direction. The riser has an air outlet on its side wall, which faces one side of the assembly frame. The distribution duct is installed on the side wall of the riser. One end of the gooseneck pipe is connected to the distribution duct, and the other end faces the location where the electrical control devices are concentrated. The regulating valve is installed on the distribution duct.

[0006] The aforementioned liquid-cooled heat exchange mechanism includes a heat exchange chamber, a coolant storage tank, a semiconductor refrigeration chip, and a circulating liquid guiding component. The heat exchange chamber is located at the bottom of the chamber and one end is connected to the air inlet of the booster fan. An air inlet is provided on one side of the heat exchange chamber. The coolant storage tank is located outside the heat exchange chamber and a rectangular notch is provided on the side wall of the coolant storage tank. The semiconductor refrigeration chip is installed at the rectangular notch and its cooling surface is located inside the coolant storage tank. One end of the circulating liquid guiding component is connected to the coolant storage tank, and the other end extends into the heat exchange chamber.

[0007] The aforementioned circulating liquid guiding component includes a circulating pump, a spiral heat exchange tube, and a baffle. The inlet end of the circulating pump is connected to the coolant storage tank. The spiral heat exchange tube is installed in the heat exchange chamber and one end is connected to the outlet end of the circulating pump. The other end of the spiral heat exchange tube is connected to the coolant storage tank. The baffle is arranged in the heat exchange chamber along an inclined direction and is staggered with the spiral heat exchange tube.

[0008] The aforementioned exhaust-type heat dissipation mechanism includes an air collector shroud, an exhaust duct, and an axial flow fan. The air collector shroud is located on the top of the housing, the exhaust duct is installed at the upper opening of the air collector shroud, and the axial flow fan is mounted on the exhaust duct.

[0009] The air inlet of the heat exchange chamber is equipped with a dust removal and filtration component.

[0010] The aforementioned dust removal and filtration components include an air inlet plate, a filter cotton mesh, and a grid cover. The air inlet plate is located at the air inlet of the heat exchange chamber, the filter cotton mesh is attached to the outside of the air inlet plate, and the grid cover is fastened to the outside of the filter cotton mesh and fixed to the side wall of the heat exchange chamber.

[0011] The utility model provides an electric cabinet for intelligent power grid wind power distributed generation, it has the following beneficial effects: the electric cabinet for intelligent power grid wind power distributed generation improves the existing electric cabinet body, sets up the assembly frame in the body, installs all kinds of electrical control devices in the assembly frame, and the assembly frame is set up with the certain gap between the body side wall, which can effectively guarantee the gas flow in the body, improve the heat dissipation cooling effect; the bottom of the body is provided with liquid cooling heat exchange mechanism and booster fan and the cooperation of air distribution component, which can suck the air in the external environment and inject into the body after cooling, thereby using low-temperature airflow for heat dissipation, further enhancing the cooling and heat exchange efficiency; in addition, the main air pipe and the vertical pipe in the air distribution component are distributedly arranged, which can comprehensively cool the internal space of the body, and the air distribution pipe and the goose neck pipe are arranged, the goose neck pipe can be arbitrarily bent and arranged, which can realize flexible adjustment of the air outlet position, and the heat dissipation air volume of the part where the electrical control devices are densely installed is concentratedly supplied, thereby effectively guaranteeing the heat dissipation cooling effect and improving the use stability and service life of the electronic components. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view cross section structure schematic drawing of the electric cabinet for intelligent power grid wind power distributed generation.

[0013] Figure 2 It is a top view cross section structure schematic drawing of the body.

[0014] Figure 3 It is a top view cross section structure schematic drawing of the liquid cooling heat exchange mechanism.

[0015] Figure 4 It is the a position enlarged structure schematic drawing of the utility model Figure 1 .

[0016] Figure 5 It is the b position enlarged structure schematic drawing of the utility model Figure 1 .

[0017] In the drawing: 1, body; 2, assembly frame; 3, temperature sensor; 4, booster fan; 5, main air pipe; 6, vertical pipe; 7, air distribution pipe; 8, goose neck pipe; 9, regulating valve; 10, heat exchange bin; 11, cooling liquid storage tank; 12, semiconductor refrigerating sheet; 13, circulating pump; 14, spiral heat exchange pipe; 15, air collecting cover; 16, air duct; 17, axial flow fan; 18, air hole plate; 19, filter cotton net; 20, grid net cover. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] Embodiment: combined with the description of the drawings Figures 1-5 It can be known that the application specifically designs an electric control box for intelligent power grid wind power distributed power generation, the assembly frame 2 is arranged in the box body 1 and a certain gap is left between the assembly frame 2 and the side wall of the box body 1, the assembly frame 2 is used for mounting various electrical control devices, the temperature sensor 3 is mounted on the assembly frame 2, the box body 1 is provided with an exhaust type heat dissipation mechanism at the top, the box body 1 is provided with a liquid cooling heat exchange mechanism at the bottom, the box body 1 is provided with a booster fan 4 at the side, the air inlet end of the booster fan 4 is communicated with the liquid cooling heat exchange mechanism, the air outlet end extends into the box body 1 and is communicated with the air distribution component; the air distribution component includes a main air pipe 5, a vertical pipe 6, an air distribution pipe 7, a goose neck pipe 8 and an adjusting valve 9, the main air pipe 5 is arranged at the lower part of the assembly frame 2 and is arranged in a mouth-shaped type, the vertical pipe 6 is arranged on the main air pipe 5 and is arranged in a vertical direction, the side wall of the vertical pipe 6 is provided with an air outlet hole, the air outlet hole is opposite to one side of the assembly frame 2, the air distribution pipe 7 is mounted on the side wall of the vertical pipe 6, the goose neck pipe 8 is communicated with the air distribution pipe 7 at one end and is opposite to the concentrated position of the electrical control device at the other end, and the adjusting valve 9 is mounted on the air distribution pipe 7. The existing electric control box box body 1 is improved, the assembly frame 2 is arranged in the box body 1, various electrical control devices in the intelligent power grid wind power distributed power generation system are mounted on the assembly frame 2, a certain gap is left between the assembly frame 2 and the side wall of the box body 1, the gas flow in the box body 1 can be effectively ensured to be smooth, and the heat dissipation and cooling effect is improved; the liquid cooling heat exchange mechanism is arranged at the bottom of the box body 1 and cooperates with the booster fan 4 and the air distribution component, air in the external environment can be sucked in, cooled and injected into the box body 1, so that the low-temperature airflow is used for heat dissipation, and the cooling and heat exchange efficiency is further enhanced; in addition, the main air pipe 5 and the vertical pipe 6 in the air distribution component are arranged in a distributed manner, the internal space of the box body 1 can be fully cooled by air sweeping, the air distribution pipe 7 and the goose neck pipe 8 are arranged, the goose neck pipe 8 can be arranged in an arbitrary bending manner, the position of the air outlet can be flexibly adjusted, the heat dissipation air volume of the part where the electrical control devices are densely mounted can be concentratedly supplied, so that the heat dissipation and cooling effect is effectively ensured, and the use stability and service life of the electronic elements are improved.

[0020] In the specific implementation process, as a preferred setting, the liquid cooling heat exchange mechanism includes a heat exchange bin 10, a cooling liquid storage tank 11, a semiconductor refrigeration piece 12, and a circulating liquid guide member. The heat exchange bin 10 is arranged at the lower part of the box body 1 and is in communication with the air inlet end of the booster fan 4 at one end. An air inlet is formed on one side of the heat exchange bin 10. The cooling liquid storage tank 11 is arranged outside the heat exchange bin 10. A rectangular notch is formed on the side wall of the cooling liquid storage tank 11. The semiconductor refrigeration piece 12 is installed at the position of the rectangular notch and the refrigeration surface is located inside the cooling liquid storage tank 11. One end of the circulating liquid guide member is in communication with the cooling liquid storage tank 11 and the other end extends into the heat exchange bin 10. The circulating liquid guide member includes a circulating pump 13, a spiral heat exchange pipe 14, and a baffle. The liquid inlet end of the circulating pump 13 is in communication with the cooling liquid storage tank 11. The spiral heat exchange pipe 14 is arranged in the heat exchange bin 10 and one end thereof is in communication with the liquid outlet end of the circulating pump 13. The other end of the spiral heat exchange pipe 14 is in communication with the cooling liquid storage tank 11. The baffle is arranged in the heat exchange bin 10 in an inclined direction and is staggered with the spiral heat exchange pipe 14. In use, the semiconductor refrigeration piece 12 on the side wall of the cooling liquid storage tank 11 is started to cool the cooling liquid in the cooling liquid storage tank 11 by the semiconductor refrigeration piece 12. The circulating pump 13 is started to draw the low-temperature cooling liquid in the cooling liquid storage tank 11 and further inject it into the spiral heat exchange pipe 14 in the heat exchange bin 10 to form a low-temperature zone in the heat exchange bin 10. The booster fan 4 is started to use the air pressure to suck the external air into the heat exchange bin 10 through the air inlet position. After the air is cooled in the heat exchange bin 10, it is injected into the air distribution member by the booster fan 4 and the cold air is blown to the electrical control devices in the box body 1 to improve the cooling speed. The arrangement of the spiral heat exchange pipe 14 can effectively increase the heat exchange contact area and improve the heat exchange efficiency of the air and the coolant. The arrangement of the baffle can further prolong the residence time of the air in the heat exchange bin 10 to make the heat exchange more sufficient.

[0021] In the specific implementation process, as a preferred setting, the liquid cooling heat exchange mechanism includes a heat exchange bin 10, a cooling liquid storage tank 11, a semiconductor refrigeration piece 12, and a circulating liquid guide member. The heat exchange bin 10 is arranged at the lower part of the box body 1 and is in communication with the air inlet end of the booster fan 4 at one end. An air inlet is formed on one side of the heat exchange bin 10. The cooling liquid storage tank 11 is arranged outside the heat exchange bin 10. A rectangular notch is formed on the side wall of the cooling liquid storage tank 11. The semiconductor refrigeration piece 12 is installed at the position of the rectangular notch and the refrigeration surface is located inside the cooling liquid storage tank 11. One end of the circulating liquid guide member is in communication with the cooling liquid storage tank 11 and the other end extends into the heat exchange bin 10. The circulating liquid guide member includes a circulating pump 13, a spiral heat exchange pipe 14, and a baffle. The liquid inlet end of the circulating pump 13 is in communication with the cooling liquid storage tank 11. The spiral heat exchange pipe 14 is arranged in the heat exchange bin 10 and one end thereof is in communication with the liquid outlet end of the circulating pump 13. The other end of the spiral heat exchange pipe 14 is in communication with the cooling liquid storage tank 11. The baffle is arranged in the heat exchange bin 10 in an inclined direction and is staggered with the spiral heat exchange pipe 14. In use, the semiconductor refrigeration piece 12 on the side wall of the cooling liquid storage tank 11 is started to cool the cooling liquid in the cooling liquid storage tank 11 by the semiconductor refrigeration piece 12. The circulating pump 13 is started to draw the low-temperature cooling liquid in the cooling liquid storage tank 11 and further inject it into the spiral heat exchange pipe 14 in the heat exchange bin 10 to form a low-temperature zone in the heat exchange bin 10. The booster fan 4 is started to use the air pressure to suck the external air into the heat exchange bin 10 through the air inlet position. After the air is cooled in the heat exchange bin 10, it is injected into the air distribution member by the booster fan 4 and the cold air is blown to the electrical control devices in the box body 1 to improve the cooling speed. The arrangement of the spiral heat exchange pipe 14 can effectively increase the heat exchange contact area and improve the heat exchange efficiency of the air and the coolant. The arrangement of the baffle can further prolong the residence time of the air in the heat exchange bin 10 to make the heat exchange more sufficient.

[0022] In the specific implementation process, as a preferred configuration, a dust removal and filtration component is provided at the air inlet of the heat exchange chamber 10. The dust removal and filtration component includes an air inlet plate 18, a filter cotton mesh 19, and a grid cover 20. The air inlet plate 18 is located at the air inlet of the heat exchange chamber 10, the filter cotton mesh 19 is attached to the outside of the air inlet plate 18, and the grid cover 20 is fastened to the outside of the filter cotton mesh 19 and fixed to the side wall of the heat exchange chamber 10. The grid cover 20 and the filter cotton mesh 19 are used to filter and intercept the intake air, thereby improving the cleanliness of the cooling air and preventing external dust particles from entering the chamber 1 through the air inlet. The grid cover 20 is a detachable structure, which is convenient for cleaning and replacement.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart grid wind power distributed power generation electric control box, comprising an electric control box body and an assembly frame, characterized in that, The assembly frame is arranged in the box and is provided with a gap between the assembly frame and the side wall of the box, the assembly frame is used for installing various electrical control devices, a temperature sensor is installed on the assembly frame, an exhaust type heat dissipation mechanism is arranged on the top of the box, a liquid cooling heat exchange mechanism is arranged on the bottom of the box, and a booster fan is arranged on the side of the box, the air inlet end of the booster fan is communicated with the liquid cooling heat exchange mechanism, and the air outlet end of the booster fan extends into the box and is communicated with the air distribution member; The air distribution member comprises a main air pipe, a vertical pipe, an air distribution pipe, a goose neck pipe and an adjusting valve, the main air pipe is arranged at the lower part of the assembly frame and is arranged in a mouth-shaped form, the vertical pipes are arranged on the main air pipe respectively and are arranged in a vertical direction, air outlet holes are formed in the side wall of the vertical pipe, the air outlet holes are opposite to one side of the assembly frame, the air distribution pipe is installed on the side wall of the vertical pipe, one end of the goose neck pipe is communicated with the air distribution pipe, and the other end of the goose neck pipe is opposite to the concentrated position of the electrical control device, and the adjusting valve is installed on the air distribution pipe.

2. The electric control box for smart grid wind power distributed generation according to claim 1, characterized in that, The liquid cooling heat exchange mechanism comprises a heat exchange bin, a cooling liquid storage tank, a semiconductor refrigeration sheet and a circulating liquid guide member, the heat exchange bin is arranged at the lower part of the box and is communicated with the air inlet end of the booster fan at one end, an air inlet is formed in one side of the heat exchange bin, the cooling liquid storage tank is arranged outside the heat exchange bin, a rectangular notch is formed in the side wall of the cooling liquid storage tank, the semiconductor refrigeration sheet is installed at the position of the rectangular notch and the refrigeration surface is located inside the cooling liquid storage tank, one end of the circulating liquid guide member is communicated with the cooling liquid storage tank, and the other end of the circulating liquid guide member extends into the heat exchange bin.

3. The electric control box for smart grid wind power distributed generation according to claim 2, characterized in that, The circulating liquid guide member comprises a circulating pump, a spiral heat exchange pipe and a baffle, the liquid inlet end of the circulating pump is communicated with the cooling liquid storage tank, the spiral heat exchange pipe is arranged in the heat exchange bin and is communicated with the liquid outlet end of the circulating pump at one end, the other end of the spiral heat exchange pipe is communicated with the cooling liquid storage tank, and the baffle is arranged in the heat exchange bin in an inclined direction and is arranged alternately with the spiral heat exchange pipe.

4. The electric control box for smart grid wind power distributed generation according to claim 1, characterized in that, The exhaust type heat dissipation mechanism comprises a wind collecting cover, an air guide pipe and an axial flow fan, the wind collecting cover is arranged on the top of the box, the air guide pipe is installed on the opening position on the upper end of the wind collecting cover, and the axial flow fan is arranged on the air guide pipe.

5. The electric control box for smart grid wind power distributed generation according to claim 2, characterized in that, The air inlet position of the heat exchange bin is provided with a dust removal and filtration member.

6. The electric control box for smart grid wind power distributed generation according to claim 5, characterized in that, The dust removal and filtration member comprises an air inlet hole plate, a filter cotton net and a grid net cover, the air inlet hole plate is arranged at the air inlet position of the heat exchange bin, the filter cotton net is attached to the outside of the air inlet hole plate, and the grid net cover is buckled to the outside of the filter cotton net and is fixed with the side wall of the heat exchange bin.

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