CN108521094B - Prefabricated cabin transformer substation with automatic temperature adjusting function and temperature control method thereof - Google Patents
Prefabricated cabin transformer substation with automatic temperature adjusting function and temperature control method thereof Download PDFInfo
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- CN108521094B CN108521094B CN201810394057.2A CN201810394057A CN108521094B CN 108521094 B CN108521094 B CN 108521094B CN 201810394057 A CN201810394057 A CN 201810394057A CN 108521094 B CN108521094 B CN 108521094B
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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
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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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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Abstract
The invention discloses a prefabricated cabin transformer substation with an automatic temperature regulation function and a temperature control method thereof, wherein the prefabricated cabin transformer substation comprises a prefabricated cabin, a phase change heat accumulator is arranged in the prefabricated cabin, the prefabricated cabin transformer substation also comprises a heat dissipation and ventilation assembly, the heat dissipation and ventilation assembly comprises an air duct and a heat collection plate, the front surface of the air duct is a transparent plate, the upper part of the air duct is provided with an air outlet, the lower part of the air duct is provided with an air inlet, the heat collection plate is positioned in the air duct, the upper part of the prefabricated cabin is provided with a first ventilation opening communicated with the air duct, the lower part of the prefabricated cabin is provided with a second ventilation opening communicated with the air duct, the prefabricated cabin is also provided with an auxiliary air opening, and the air; and a temperature controller linked with the electric control air valves is arranged in the prefabricated cabin. The installation cost and the operation energy consumption of the prefabricated cabin transformer substation are reduced, and the heat dissipation performance is improved.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a prefabricated cabin transformer substation with an automatic temperature adjusting function and a temperature control method thereof.
Background
At present, with the increasingly tense urban land, prefabricated cabin substations with compact structures and small volumes are widely used. The prefabricated cabin is generally formed by splicing steel plates on a supporting frame, the electrical equipment in the prefabricated cabin substation is intensively placed in the prefabricated cabin, and the temperature in the prefabricated cabin has great influence on the operation of the electrical equipment. Chinese patent No. 201511010966.4 discloses a prefabricated cabin type substation and a heat dissipation control method, in which a through air duct is formed in a foundation at the bottom of a prefabricated cabin, and heat dissipation is achieved by using a height difference and a temperature difference between the foundation and the outside. However, digging the through air duct in the foundation takes time and labor, which increases installation cost, is limited by the depth of the through air duct, has limited heat dissipation capability, and requires auxiliary heat dissipation or heating by installing heating and ventilation equipment. The invention aims to solve the technical problem of how to design a prefabricated cabin transformer substation technology which is low in installation cost and good in heat dissipation performance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the prefabricated cabin transformer substation with the automatic temperature adjusting function and the temperature control method thereof are provided, so that the installation cost and the operation energy consumption of the prefabricated cabin transformer substation are reduced, and the heat radiation performance is improved.
The invention provides a prefabricated cabin transformer substation with an automatic temperature adjusting function, which comprises a prefabricated cabin, wherein a phase change heat accumulator is arranged in the prefabricated cabin, the prefabricated cabin transformer substation also comprises a heat dissipation and ventilation assembly, the heat dissipation and ventilation assembly comprises an air duct and a heat collection plate, the front surface of the air duct is a transparent plate, the upper part of the air duct is provided with an air outlet, the lower part of the air duct is provided with an air inlet, the heat collection plate is positioned in the air duct, the upper part of the prefabricated cabin is provided with a first ventilation opening communicated with the air duct, the lower part of the prefabricated cabin is provided with a second ventilation opening communicated with the air duct, the prefabricated cabin is also provided with an auxiliary air opening, and the air outlet, the air inlet, the first ventilation opening, the second ventilation opening and the auxiliary air opening are respectively provided with an; and a temperature controller linked with the electric control air valves is arranged in the prefabricated cabin.
Furthermore, the phase change material is filled in the phase change heat accumulator, and a plurality of radiating fins are arranged on the surface of the phase change heat accumulator.
Furthermore, the upper part and the lower part of the air duct are respectively provided with a connecting air pipe, and the first ventilation opening and the second ventilation opening are connected with the corresponding connecting air pipes.
Furthermore, the heat collecting plate is a solar panel, and a storage battery for storing electric energy generated by the solar panel is further arranged in the prefabricated cabin.
Further, the prefabricated cabin is also provided with an electric heater for heating by using the electric energy of the storage battery; and/or the prefabricated cabin is also provided with a fan which is used for operating by utilizing the electric energy of the storage battery, and the fan is arranged on the auxiliary air opening.
Further, the prefabricated cabin comprises a frame and a composite wall plate arranged on the frame; the composite wallboard comprises an outer skin, an inner skin and a heat-insulation core plate, wherein a frame is arranged around the heat-insulation core plate, and the heat-insulation core plate and the frame are arranged between the outer skin and the inner skin; the outer skin and the inner skin are glass fiber reinforced plastic plates or carbon fiber plates.
Furthermore, an outer buckle cover is arranged on the frame, a clamping groove is formed in the frame, clamping jaws are arranged on the outer buckle cover, and the clamping jaws are clamped in the corresponding clamping grooves.
Furthermore, the edges of the outer skin and the inner skin are arranged to be chamfer structures, and two side parts of the outer buckle cover correspondingly cover the chamfer structures.
Furthermore, a slot is formed in the outer buckle cover, a sealing wool top is arranged in the slot, and the sealing wool top is located in a gap between the composite wall plate and the frame; and a sealing strip is also arranged between the edge of the composite wall plate and the frame.
The invention also provides a temperature control method of the prefabricated cabin transformer substation with the automatic temperature adjustment function, which comprises the following steps:
when the temperature controller detects that the temperature value in the prefabricated cabin is lower than a set value T0, the electric control air valves on the first ventilation opening and the second ventilation opening are opened, the electric control air valves of the air outlet, the air inlet and the auxiliary air opening are closed, and the phase change heat accumulator releases heat;
when the temperature controller detects that the temperature value in the prefabricated cabin is higher than a set value T0, the electric control air valves on the second ventilation opening, the air outlet and the auxiliary air opening are opened, the electric control air valves on the first ventilation opening and the air inlet are closed, and the phase change heat accumulator absorbs heat;
when the temperature controller detects that the temperature value in the prefabricated cabin is equal to a set value T0, the electric control air valves on the air inlet and the air outlet are opened, the first air vent, the second air vent, the auxiliary air vent and the electric control air valves are closed, and the phase change heat accumulator maintains the current situation.
Compared with the prior art, the invention has the advantages and positive effects that: the heat dissipation and ventilation assembly is configured on the prefabricated cabin, the heat collection plates in the air duct of the heat dissipation and ventilation assembly can heat air in the air duct, the air flowing out of the air duct can drive the air in the prefabricated cabin to continuously flow into the air duct by utilizing the principle of hot air upward flow, the air in the prefabricated cabin can be heated by utilizing the air duct according to the temperature condition in the prefabricated cabin, or negative pressure is formed in the prefabricated cabin by utilizing the air duct, so that the outside cold air enters the prefabricated cabin to be cooled, the equipment for reducing the heating and ventilation equipment is provided, meanwhile, the heating and ventilation energy consumption cost of the prefabricated cabin and the equipment after-sale maintenance cost in the future are reduced, the installation cost of a transformer substation of the prefabricated cabin is reduced, and the heat dissipation performance is improved. In addition, the phase change heat accumulator in the prefabricated cabin can release or absorb heat according to the temperature in the prefabricated cabin under the condition of no illumination, so that the temperature in the prefabricated cabin can be further adjusted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a prefabricated cabin substation of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a partial cross-sectional view of a prefabricated cabin in an embodiment of a prefabricated cabin substation of the present invention;
FIG. 4 is a schematic structural diagram of a composite wall panel in an embodiment of a prefabricated cabin substation according to the present invention;
fig. 5 is a sectional view taken along line B-B in fig. 4.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 5, the prefabricated cabin substation of the present embodiment includes a prefabricated cabin 1, and the prefabricated cabin 1 is used for installing various electrical devices therein, wherein the specific configuration manner of the electrical devices is not limited herein. In order to meet the requirement of adjusting the internal temperature of the prefabricated cabin 1, the prefabricated cabin 1 is further provided with a heat dissipation and ventilation assembly 2 which is in independent structure modular design, the heat dissipation and ventilation assembly 2 comprises an air duct 21 and a heat collection plate 22, the front surface of the air duct 21 is a transparent plate 210, the upper part of the air duct 21 is provided with an air outlet 211, the lower part of the air duct 21 is provided with an air inlet 212, the heat collection plate 22 is located in the air duct 21, the upper part of the prefabricated cabin 1 is provided with a first ventilation opening 102 communicated with the air duct 21, the lower part of the prefabricated cabin 1 is provided with a second ventilation opening 103 communicated with the air duct 21, the prefabricated cabin 1 is further provided with an auxiliary ventilation opening 101, and the air outlet 211, the air inlet 212, the first ventilation opening 102, the second ventilation opening 103 and the auxiliary ventilation opening 101; and a temperature controller (not marked) linked with the electric control air valves is arranged in the prefabricated cabin 1. Specifically, the prefabricated cabin 1 is provided with the modular heat dissipation and ventilation assembly 2, and the heat dissipation and ventilation assembly 2 is assembled on the prefabricated cabin 1 on site, and then is installed on the prefabricated cabin 1, so that modular split type transportation can be realized, and the transportation cost is reduced. In the practical use process, under the condition of sufficient sunlight, the heat collecting plate 22 in the air duct 21 absorbs the sunlight energy to generate heat so as to heat the air in the air duct 21, so that the temperature in the prefabricated cabin 1 can be adjusted by utilizing the principle that the hot air rises, specifically, according to the temperature signal detected by the temperature controller in the prefabricated cabin 1, when the temperature controller detects that the temperature value in the prefabricated cabin 1 is lower than the set value T0, the electrically controlled air valves on the first ventilation opening 102 and the second ventilation opening 103 are opened, and the air outlet 211, the air inlet 212 and the electrically controlled air valve of the auxiliary air opening 101 are closed, at this time, as the temperature in the prefabricated cabin 1 is lower than the set value, an air circulation flow path is formed between the inner space of the prefabricated cabin 1 and the air duct 21, the air in the prefabricated cabin 1 enters the air duct 21 from the second ventilation opening 103, and the air in the air duct 21 enters the prefabricated cabin 1 from the first ventilation, in this way, the air flowing into the air duct 21 from the prefabricated cabin 1 can be heated by the heat collecting plate 22, and the internal space of the prefabricated cabin 1 is internally circulated through the air duct 21 to increase the temperature in the prefabricated cabin 1; and when the temperature controller detects that the temperature value in the prefabricated cabin 1 is higher than a set value T0, the electrically controlled air valves on the second air vent 103, the air outlet 211 and the auxiliary air vent 101 are opened, and the electrically controlled air valves on the first air vent 102 and the air inlet 212 are closed, at this time, since the temperature in the prefabricated cabin 1 is higher than the set value, outside cold air needs to be introduced into the prefabricated cabin 1, the outside cold air enters the prefabricated cabin 1 from the auxiliary air opening 101, and the air in the prefabricated cabin 1 enters the air duct 21 from the second ventilation opening 103, is heated by the heat collecting plate 22 and then is discharged from the ventilation opening 211, the air in the air duct 21 is heated by the heat collecting plate 22 and then is discharged from the ventilation opening 211, the air in the prefabricated cabin 1 is sucked into the air duct 21, so that negative pressure is formed in the prefabricated cabin 1, and outside cold air enters the prefabricated cabin 1 from the auxiliary air opening 101 to automatically dissipate heat and cool the interior of the prefabricated cabin 1; and when the temperature controller detects that the temperature value in the prefabricated cabin 1 is equal to a set value T0, the electric control air valves on the air inlet 212 and the air outlet 211 are opened, and the electric control air valves of the first ventilation opening 102, the second ventilation opening 103 and the auxiliary air opening 101 are closed, specifically, when the temperature in the prefabricated cabin 1 meets the set value requirement, the air duct 21 and the outside can automatically perform air circulation by opening the air inlet 212 and the air outlet 211 without influencing the temperature in the prefabricated cabin 1. Preferably, in order to facilitate on-site quick assembly of the cooling and ventilating assembly 2 on the prefabricated cabin 1, the upper portion and the lower portion of the air duct 21 are respectively provided with a connecting air duct 20, the first ventilation opening 102 and the second ventilation opening 103 are connected with the corresponding connecting air duct 20, specifically, after the air duct 21 is installed on the side wall of the prefabricated cabin 1 facing the sun, the air duct 21 is connected with the first ventilation opening 102 and the second ventilation opening 103 of the prefabricated cabin 1 through the connecting air duct 20, wherein the connecting air duct 20 may be configured with a support frame (not shown), and the support frame is used for fixedly installing the connecting air duct 20 on one hand and also used for supporting and installing the air duct 21 on the other hand.
Further, heat insulating layers (not shown) are disposed on the back and both sides of the air duct 21, and the transparent plate 210 is a hollow heat insulating glass plate. Specifically, the air duct 21 adopts a heat insulation structure design, which can ensure that the air in the air duct 21 is rapidly heated by the heat collecting plate 22 to form a stronger flowing air flow, so as to improve the air flowing efficiency. Wherein, the air outlet 211 and the air inlet 212 are respectively provided with a rain cover to prevent rain water from entering the air duct 21 in rainy days to damage the heat collecting plate 22. Preferably, in order to more effectively improve the utilization rate of solar energy and reduce the energy consumption of operation, the heat collecting plate 22 is a solar cell panel, and a storage battery for storing electric energy generated by the solar cell panel is further arranged in the prefabricated cabin 1, specifically, the heat collecting plate 22 is a solar cell panel, which can play a role of heating air in the air duct 21 on one hand and can also generate electricity by using solar energy on the other hand, and the generated electric energy is stored in the storage battery and is used by a related electric control air valve; in order to adjust the temperature in the prefabricated cabin 1 more efficiently, the prefabricated cabin 1 is further provided with an electric heater for heating by using the electric energy of the storage battery; and/or, prefabricated cabin 1 still is provided with the fan that is used for utilizing the electric energy of battery to carry out the operation, the fan sets up on supplementary wind gap 101, and is specific, under the high temperature of external world or microthermal condition, only utilizes wind channel 21 to carry out the circulated air and flows, and the time that consumes is longer in the process of adjusting the temperature is to, the effect of adjusting the temperature in wind channel 21 will descend night, and at this moment, supplies power through the battery for electric heater or fan, alright further adjust the temperature in prefabricated cabin 1, and specific accommodation process is: when the temperature controller detects that the temperature value in the prefabricated cabin 1 is lower than a set value T0, the fan is powered off, the electric heater is powered on to heat, and the electric heater is used for assisting in heating air in the prefabricated cabin 1 to rapidly heat; when the temperature controller detects that the temperature value in the prefabricated cabin 1 is higher than a set value T0, the electric heater is powered off, the fan is powered on to operate, the electric control air valves on the second air vent, the air outlet 211 and the auxiliary air vent 101 are opened, the electric control air valves on the first air vent and the air inlet 212 are closed, and the fan can increase the exchange speed of the outside air and the air in the prefabricated cabin 1 so as to realize rapid cooling; and when the temperature controller detects that the temperature value in the prefabricated cabin is equal to a set value T0, the electric heater and the fan are powered off.
Furthermore, in order to effectively meet the requirement of adjusting the temperature in the prefabricated cabin 1 at night, a phase change heat accumulator 3 is configured in the prefabricated cabin 1, specifically, a phase change material in the phase change heat accumulator 3 can automatically absorb or release heat according to the requirement, and the temperature value of the phase change material adopted by the phase change heat accumulator 3, which changes phase, is also set to be T0, so that when the temperature controller detects that the temperature value in the prefabricated cabin 1 is lower than a set value T0, the phase change heat accumulator 3 releases heat to increase the temperature in the prefabricated cabin 1; when the temperature controller detects that the temperature value in the prefabricated cabin 1 is higher than a set value T0, the phase change heat accumulator 3 absorbs heat to reduce the temperature in the prefabricated cabin 1; when the temperature controller detects that the temperature value in the prefabricated cabin 1 is equal to a set value T0, the phase change heat accumulator 3 maintains the current state. The phase-change heat accumulator 3 is filled with a phase-change material, and in order to increase the heat exchange area, the surface of the phase-change heat accumulator 3 is provided with a plurality of radiating fins, and the radiating fins can increase the heat exchange area between the phase-change heat accumulator 3 and the air in the prefabricated cabin 1, so as to improve the temperature regulation efficiency. In addition, the phase change heat accumulator 3 can be mounted on the inner wall of the prefabricated cabin 1 in a suspension manner.
The heat dissipation and ventilation assembly is configured on the prefabricated cabin, the heat collection plates in the air duct of the heat dissipation and ventilation assembly can heat air in the air duct, the air flowing out of the air duct can drive the air in the prefabricated cabin to continuously flow into the air duct by utilizing the principle of hot air upward flow, the air in the prefabricated cabin can be heated by utilizing the air duct according to the temperature condition in the prefabricated cabin, or negative pressure is formed in the prefabricated cabin by utilizing the air duct, so that the outside cold air enters the prefabricated cabin to be cooled, the equipment for reducing the heating and ventilation equipment is provided, meanwhile, the heating and ventilation energy consumption cost of the prefabricated cabin and the equipment after-sale maintenance cost in the future are reduced, the installation cost of a transformer substation of the prefabricated cabin is reduced, and the heat dissipation performance is improved.
Based on the above technical solution, optionally, the prefabricated cabin substation of this embodiment is further improved with respect to the wall plate of the prefabricated cabin 1, specifically, the prefabricated cabin 1 includes a frame 11 and a composite wall plate 12 arranged on the frame 11; the composite wall plate 12 comprises an outer skin 121, an inner skin 122 and a heat-insulating core plate 123, wherein a frame 124 is arranged around the heat-insulating core plate 123, and the heat-insulating core plate 123 and the frame 124 are arranged between the outer skin 121 and the inner skin 122. Specifically, the outer skin 121 and the inner skin 122 are both supported by non-metal plates, for example: the outer skin 121 and the inner skin 122 are made of glass fiber reinforced plastic plates or carbon fiber plates, so that the outer skin 121 and the inner skin 122 are ensured to have enough structural strength and keep lower heat conductivity coefficient, meanwhile, because metal plates are not adopted and corrosion-resistant non-metal plates are adopted to make the skins, paint spraying is not needed in the early stage of processing, and corrosion-resistant maintenance is avoided in the later stage, so that the corrosion-resistant problem of the wall plate for the prefabricated cabin 1 is effectively solved, the wall plate can be applied to various severe environments without rusting, meanwhile, due to the change of materials, the weight of the wall plate is effectively reduced, the production, transportation and installation efficiencies of the wall plate are improved, and meanwhile, the costs of transportation, hoisting and site infrastructure of the prefabricated cabin 1 are greatly reduced; the heat-insulating core board 123 has good heat-insulating performance, and the heat-insulating core board 123 is covered by the outer skin 121 and the inner skin 122 in front and at the back so as to ensure the use reliability of the composite wall board 12. The composite wall panel is characterized in that an outer cover 125 is arranged on the frame 124, specifically, the outer cover 125 is clamped on the frame 124, a clamping groove (not marked) is arranged on the frame 124, a clamping jaw (not marked) is arranged on the outer cover 125, the clamping jaw is clamped in the corresponding clamping groove to clamp the outer cover 125 on the frame 124 to complete assembly, preferably, in order to improve the use reliability of the composite wall panel 12, the edges of the outer skin 121 and the inner skin 122 are arranged to be chamfer structures, two side portions of the outer cover 125 correspondingly cover the chamfer structures, specifically, two sides of the outer cover 125 form a bent structure to be attached to the chamfer structure at the edge of the skin, and the outer cover 125 presses the chamfer structure of the skin to the inner side to prevent the skin from being warped. In addition, two sides of the frame 124 are provided with a flange structure 1241, and the frame 124 wraps the periphery of the heat-insulating core board 123 through the flange structures 1241; the inner skin 122 and the corresponding flanging structure 1241 are respectively provided with coaxially arranged avoiding holes (not marked), nuts 127 are arranged in the two coaxially arranged avoiding holes, specifically, when the composite wall panel 12 is mounted on the frame 11, bolts pass through the frame 11 to connect the nuts 127 so as to realize the connection between the composite wall panel 12 and the frame 11, preferably, in order to realize the bolt-free connection outside and facilitate the later maintenance, the bolts 111 of the composite wall panel 12 are mounted from the inner side of the prefabricated cabin 1, the inner side of the frame 11 is also provided with a detachable decorative panel 13, the decorative panel 13 is also mounted on the frame 11 from the inner side of the prefabricated cabin 1 through self-tapping screws 14, likewise, the decorative panel 13 covers the bolts 111, when the composite wall panel 12 needs to be maintained and replaced in the later period, the decorative panel 13 at the corresponding position is detached, so that the composite wall panel 12 can be detached from the interior of the prefabricated cabin 1, the new composite wall panel 12 is then replaced from the outside and the new composite wall panel 12 is secured from the interior of the prefabricated cabin 1. Further, in order to further improve the heat insulation capability and reduce the formation of a thermal bridge between the composite wall panel 12 and the frame 11, an insertion groove is formed in the external buckle cover 125, a sealing strip 126 is arranged in the insertion groove, specifically, the sealing strip 126 is located in a gap between the composite wall panel 12 and the frame 11, and the sealing strip 126 can seal the gap between the composite wall panel 12 and the frame 11 on one hand and can effectively isolate the heat transfer between the composite wall panel 12 and the frame 11 on the other hand; and a sealing strip 15 is arranged between the inner side edge of the composite wall plate 12 and the frame 11, and the sealing strip 15 can be used for sealing and connecting the composite wall plate 12 and the frame 11 on one hand and effectively blocking a thermal bridge formed between the inner side of the composite wall plate 12 and the frame 11 on the other hand. The specific assembly method for the composite wall panel 12 is as follows: the frame 124 is installed on the periphery of the heat-insulating core board 123, then the front surface and the rear surface of the heat-insulating core board 123 and the flanging structure 1241 are respectively coated with glue, the outer skin 121 and the inner skin 122 are correspondingly bonded on the front surface and the rear surface of the heat-insulating core board 123, the outer buckle cover 125 is clamped on the frame 124, the composite wall board 12 can be assembled, the composite wall board 12 is assembled by adopting gluing and clamping, and the assembling efficiency is improved.
The composite wallboard is arranged on the frame in a mode of matching the skin with the heat-insulation core board to form the prefabricated cabin, the skin is made of non-metal materials, paint spraying and corrosion preventing treatment are not needed in the processing process, meanwhile, the operation and maintenance cost of the prefabricated cabin in the corrosion preventing later stage is greatly reduced, the protection grade of the prefabricated cabin is improved, and the manufacturing cost is reduced; and the heat-insulating core plate between the skins has good heat-insulating performance, so that the heat-insulating effect of the prefabricated cabin is better, and the stable operation of internal electrical equipment is ensured.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A prefabricated cabin transformer substation with an automatic temperature adjusting function comprises a prefabricated cabin and is characterized in that a phase change heat accumulator is arranged in the prefabricated cabin, the prefabricated cabin transformer substation further comprises a heat dissipation and ventilation assembly which is in modular design and has an independent structure, the heat dissipation and ventilation assembly comprises an air duct and a heat collection plate, the front side of the air duct is a transparent plate, the upper portion of the air duct is provided with an air outlet, the lower portion of the air duct is provided with an air inlet, the heat collection plate is located in the air duct, the upper portion of the prefabricated cabin is provided with a first ventilation opening communicated with the air duct, the lower portion of the prefabricated cabin is provided with a second ventilation opening communicated with the air duct, the prefabricated cabin is further provided with an auxiliary air opening, and the air outlet, the air inlet, the first ventilation opening, the second ventilation opening and the auxiliary; a temperature controller linked with the electric control air valves is arranged in the prefabricated cabin, the heat collecting plate is a solar cell panel, a storage battery used for storing electric energy generated by the solar cell panel is also arranged in the prefabricated cabin, and the solar cell panel is used for generating electricity by utilizing solar energy and heating air in the air duct;
the phase-change heat accumulator is internally filled with a phase-change material, a plurality of radiating fins are arranged on the surface of the phase-change heat accumulator, and the temperature value of the phase-change material subjected to phase change is T0;
when the temperature controller detects that the temperature value in the prefabricated cabin is lower than a set value T0, the electric control air valves on the first ventilation opening and the second ventilation opening are opened, the electric control air valves on the air outlet, the air inlet and the auxiliary air opening are closed, and the phase change heat accumulator releases heat;
when the temperature controller detects that the temperature value in the prefabricated cabin is higher than a set value T0, the electric control air valves on the second ventilation opening, the air outlet and the auxiliary ventilation opening are opened, the electric control air valves on the first ventilation opening and the air inlet are closed, and the phase change heat accumulator absorbs heat;
and when the temperature controller detects that the temperature value in the prefabricated cabin is equal to a set value T0, opening the electric control air valves on the air inlet and the air outlet, closing the electric control air valves of the first air vent, the second air vent and the auxiliary air vent, and maintaining the current situation of the phase change heat accumulator.
2. The prefabricated cabin substation with the automatic temperature adjusting function according to claim 1, wherein connecting air pipes are respectively arranged at the upper part and the lower part of the air duct, and the first ventilation opening and the second ventilation opening are connected with the corresponding connecting air pipes.
3. The prefabricated cabin substation with the automatic temperature regulation function according to claim 1, characterized in that the prefabricated cabin is further provided with an electric heater for heating by electric energy of the storage battery; and/or the prefabricated cabin is also provided with a fan which is used for operating by utilizing the electric energy of the storage battery, and the fan is arranged on the auxiliary air opening.
4. The prefabricated cabin substation with the automatic temperature regulating function according to claim 1, wherein the prefabricated cabin comprises a frame and a composite wall plate arranged on the frame; the composite wallboard comprises an outer skin, an inner skin and a heat-insulation core board, wherein a frame is arranged around the heat-insulation core board, and the heat-insulation core board and the frame are arranged between the outer skin and the inner skin.
5. The prefabricated cabin substation with the automatic temperature regulating function according to claim 4, characterized in that an external buckle cover is arranged on the frame.
6. The prefabricated cabin substation with the automatic temperature regulation function according to claim 5, wherein the edges of the outer skin and the inner skin are arranged to be chamfer structures, and two side portions of the outer buckle cover correspondingly cover the chamfer structures.
7. The prefabricated cabin substation with the automatic temperature regulation function according to claim 5, wherein a slot is formed in the outer buckle cover, a sealing wool top is arranged in the slot, and the sealing wool top is located in a gap between the composite wall plate and the frame; and a sealing strip is also arranged between the edge of the composite wall plate and the frame.
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| CN201810394057.2A CN108521094B (en) | 2018-04-27 | 2018-04-27 | Prefabricated cabin transformer substation with automatic temperature adjusting function and temperature control method thereof |
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| CN201810394057.2A CN108521094B (en) | 2018-04-27 | 2018-04-27 | Prefabricated cabin transformer substation with automatic temperature adjusting function and temperature control method thereof |
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| CN108521094B true CN108521094B (en) | 2020-12-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324352B (en) * | 2008-07-11 | 2011-05-18 | 重庆大学 | Solar energy storage ventilated heating system |
| CN104317330A (en) * | 2014-05-28 | 2015-01-28 | 许继电气股份有限公司 | Prefabricated cabin, and temperature control system and temperature control method thereof |
| CN102700628B (en) * | 2012-06-27 | 2015-03-25 | 郑州红宇专用汽车有限责任公司 | Heat preservation car panel with glass fiber reinforced plastic framework structure for foaming refrigerator car |
| CN206805322U (en) * | 2017-03-31 | 2017-12-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Prefabricated cabin temperature control system |
-
2018
- 2018-04-27 CN CN201810394057.2A patent/CN108521094B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324352B (en) * | 2008-07-11 | 2011-05-18 | 重庆大学 | Solar energy storage ventilated heating system |
| CN102700628B (en) * | 2012-06-27 | 2015-03-25 | 郑州红宇专用汽车有限责任公司 | Heat preservation car panel with glass fiber reinforced plastic framework structure for foaming refrigerator car |
| CN104317330A (en) * | 2014-05-28 | 2015-01-28 | 许继电气股份有限公司 | Prefabricated cabin, and temperature control system and temperature control method thereof |
| CN206805322U (en) * | 2017-03-31 | 2017-12-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Prefabricated cabin temperature control system |
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| CN108521094A (en) | 2018-09-11 |
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