Prefabricated transformer substation
By designing a spiral coiled radiator and breathing membrane on a pre-installed substation, combined with induction air plate and blower pressure plate, the heat exchange uneven caused by air partition is solved, and a more efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202411418371.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-01-10
AI Technical Summary
Due to the compact space and poor internal air flow, pre-installed substations have uneven heat exchange, and they cannot effectively utilize external natural energy for heat dissipation.
A pre-installed substation consisting of a spiral coiled radiator and a breathing membrane was designed. Through the coordination of the induction air plate and the blower pressure plate, the radiator gap and breathing membrane are adaptively adjusted, and the air is accelerated by wind power to break the air. Partition to improve heat exchange efficiency.
Under the action of wind, the gap between the radiator is rapidly increased to promote the discharge of hot air, and the gap is maintained when the wind stops to ensure heat dissipation. The breathing effect of the breathing membrane accelerates the flow of air, breaks the air partition, improves heat exchange efficiency and enhances self-protection effect .
Smart Images
Figure CN119297793A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of transformer substations, in particular to a prefabricated transformer substation. Background Art
[0002] A prefabricated substation, also known as a prefabricated substation or a box-type substation, is a substation that is pre-designed, manufactured, tested and installed in one or more boxes. It has the following characteristics: High integration: The prefabricated substation integrates high-voltage switchgear, transformers, low-voltage distribution equipment, relay protection devices, automation control systems, etc. in one or more boxes; Fast installation: Since the prefabricated substation is pre-assembled, it can be quickly installed on site, greatly shortening the construction period; Small footprint: Compared with traditional substations, prefabricated substations are compact in design and occupy a small area, making them suitable for use in cities and areas with limited space; Mobility: Some types of prefabricated substations can be designed to be movable, which is convenient for temporary or emergency use. They are widely used in residential areas, commercial areas, industrial areas, mines, oil fields, wind power generation and solar power generation.
[0003] Convenience and small space are the advantages of prefabricated substations, but there are also disadvantages. Small space means that the internal electrical components are arranged more compactly, and space is more limited, which requires higher basic requirements such as heat dissipation and dust prevention. Although traditional substations are large in size, they can be equipped with some high-efficiency heat dissipation systems to meet the working needs of the substation. However, prefabricated substations, which are characterized by convenience and small space, are obviously not suitable for the auxiliary installation of a more complete and large heat dissipation system. Therefore, how to use natural energy to fully cool them and maintain their stable operation is the direction that the industry is striving for and working towards. Based on the above, we analyzed the natural heat dissipation efficiency of prefabricated substations using natural energy. When heat is dissipated through internal and external gas exchange in a closed space, the air intake and air output per unit time are actually highly consistent. Simply put, the amount of external gas entering the closed space is the same as the amount of internal gas discharged. If the internal gas cannot be discharged in a timely and equal manner, then even if the external air pressure or wind force is strong, a partition will be formed in the closed space, resulting in poor heat exchange efficiency (similar to pouring water into a teacup, the water is easily blocked by a tea sieve with dense mesh, and may even be unable to fall. In fact, it is not the tea sieve that blocks the water, but the gas inside the teacup cannot get out, forming an air partition). Existing outdoor closed facilities such as substations generally face the above problem. Even though the outside temperature is very low, the wind speed is very fast, and the box body is also equipped with corresponding air inlets and outlets, the temperature inside the substation is still very high and can only be assisted by some electrical equipment to dissipate heat. In fact, this is because the poor gas flow in the box forms an air partition, which prevents the gas outside the box from effectively entering.
[0004] In view of the above problems, the present invention needs to make an innovative design based on the original prefabricated substation, aiming to solve the problem of uneven internal and external heat exchange caused by the air partition mentioned above. Summary of the Invention
[0005] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a prefabricated substation to solve the problem of uneven internal and external heat exchange caused by air partitions proposed in the above background technology.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a prefabricated substation, comprising a substation box, a heat dissipation frame stacked on the hot air concentration area above the substation box, and spirally coiled radiators evenly distributed on both sides of the heat dissipation frame, and an inner baffle that can move horizontally with the spiral expansion and contraction of the radiator is provided inside the radiator, and breathing membranes that can produce a breathing effect by horizontally reciprocating with the inner baffle are symmetrically provided at the center of the other two sides of the heat dissipation frame.
[0007] Preferably, a central push rod is fixed to the spiral center end of the radiator, and the central push rod is fixedly connected to the inner baffle.
[0008] Preferably, fixing rods with ends fixed to the inner wall of the heat dissipation frame are symmetrically passed through both sides of the inner baffle, and a return spring is wrapped around the outer wall of the fixing rod, one end of the return spring is welded to the inner wall of the heat dissipation frame, and the other end of the return spring is fixed to the side wall of the inner baffle.
[0009] Preferably, connecting rods are symmetrically fixed on both sides of the inner baffle, and the side walls of the heat dissipation frame are penetrated by sliding rails matching the connecting rods, and the ends of the connecting rods pass through the sliding rails and are fixedly connected to induction air plates perpendicular to the outer side walls of the heat dissipation frame.
[0010] Preferably, a connecting plate is fixed between the two induction air plates symmetrically arranged on the sides of the heat dissipation frame, tooth blocks are evenly distributed on the inner side of the middle section of the connecting plate, and the inner side of the tooth block is meshed with a gear installed on the outer wall of the heat dissipation frame.
[0011] Preferably, guide rods fixed to the outer wall of the heat dissipation frame are symmetrically provided on both sides of the gear, and the lower end of the slide rod is slidably provided on the outer wall of the guide rod, and the upper end of the slide rod is fixed with a blast pressure plate whose inner side is meshed with the gear.
[0012] Preferably, the two symmetrical blast pressure plates on both sides of the gear are horizontally corresponding to the breathing membranes on the sides of the heat dissipation frame, and the breathing membranes are made of elastic material.
[0013] Compared with the prior art, the present invention has the following beneficial effects: In a short period of time, the wind will only blow towards the substation box from one direction. When the wind blows from one of the four sides of the substation box, it will first be sensed by the spiral radiator evenly distributed on the windward side. At the same time, the induction wind plates on both sides will also sense it synchronously. Under the action of wind, the induction wind plates on both sides will carry the shared inner baffles on the inner side to move inward. Similarly, the inner baffles on the opposite side will move in the same direction under the action of the induction wind plates on both sides. The inner baffle on the windward side will pull the radiator on the windward side inward through several center rods. After being pulled and under the support of wind, the spiral center end of the radiator forms a trumpet shape concave toward the inside of the box, which rapidly increases the spiral gap. At this time, the wind can quickly enter the box through the larger spiral gap. At the same time, the inner baffle on the leeward side will push the radiator on the leeward side outward through the center rod, so that the central end of the spiral of the radiator forms a trumpet shape that bulges outward, and the spiral gap increases rapidly. At this time, the hot air inside the box can be discharged through the larger spiral gap on the leeward side. When there is wind, the spiral gap of the radiator on the inlet and outlet will adaptively increase to improve the heat exchange efficiency. When the wind stops, the spiral gap of the radiator on the inlet and outlet is relatively small but not completely closed to ensure normal heat dissipation. At the same time, the spirally coiled radiator design can prevent external debris from directly invading the box, and has a high self-protection effect. Simply relying on the change in the size of the above-mentioned air inlet and outlet has not solved the air partition problem raised in the background technology. Therefore, the present invention has made additional improvements at the same time. When the induction air plates on both sides of the box body move synchronously against the wind, they will synchronously drive the middle connecting plate used to connect the two induction air plates to move horizontally. The connecting plate moving unidirectionally with the wind will synchronously drive the gear to rotate adaptively through the tooth block in the middle section, and when the gear rotates, it will produce an effect of pushing one side forward and pulling the other side backward on the blast pressure plates on both sides, so that one of the blast pressure plates quickly approaches the corresponding breathing membrane and quickly impacts the breathing membrane, causing the breathing membranes on both sides to quickly shrink into the box and compress the upper space in the box to a certain extent. At this time, the induction air plates are moving This indicates that the radiators on the windward and leeward sides are in an open state with a large gap. In addition, it should be noted that the wind does not always blow in one direction, nor does it blow continuously in one direction. Therefore, when the wind stops or weakens in that direction, the corresponding induction wind plate, connecting plate and blower pressure plate will quickly reset and release the squeeze on the breathing membrane, thereby using the start and stop of the wind to make the breathing membrane produce a breathing effect. On the one hand, the spatial compression of the breathing membrane on both sides is used to force the hot air in the box to be discharged from the radiator on the leeward side. On the other hand, the breathing membrane with a breathing effect will accelerate the air flow in the upper part of the box to break the air partition in the box, so that the hot air in the upper part of the box can be quickly discharged through the airflow of the inlet and outlet. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the first stereogram of the present invention; Figure 2This is a second stereoscopic view of the present invention; Figure 3 It is a schematic diagram of the front view structure of the present invention; Figure 4 This is a first stereoscopic diagram of four heat dissipation frames of the present invention stacked in an offset manner; Figure 5 A second three-dimensional diagram of four heat dissipation frames of the present invention stacked in an offset manner; Figure 6 A three-dimensional diagram of a structure related to the breathing effect of the present invention; Figure 7 For the present invention Figure 4 A in the middle is an enlarged structural diagram; Figure 8 For the present invention Figure 5 Enlarged structural diagram at point B in the middle.
[0015] In the figure: 1. Substation box; 2. Heat dissipation frame; 21. Slide rail; 3. Radiator; 31. Center support rod; 32. Inner baffle; 33. Connecting rod; 34. Fixed rod; 35. Return spring; 4. Induction wind plate; 41. Connecting plate; 5. Breathing membrane; 51. Gear; 52. Guide rod; 53. Slide rod; 54. Blower pressure plate. DETAILED DESCRIPTION
[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0017] See also Figure 1-8 The present invention provides a technical solution: a prefabricated substation, including a substation box 1, a heat dissipation frame 2 is stacked in the hot air concentration area above the substation box 1, and spirally coiled radiators 3 are evenly distributed on both sides of the heat dissipation frame 2, and an inner baffle 32 is provided inside the radiator 3, which can move horizontally with the spiral expansion and contraction of the radiator 3, and a breathing membrane 5 is symmetrically provided at the center of the other two sides of the heat dissipation frame 2, which can reciprocate horizontally with the inner baffle 32 to produce a breathing effect.
[0018] A central push rod 31 is fixed to the spiral center end of the radiator 3 , and the central push rod 31 is fixedly connected to the inner baffle 32 .
[0019] The inner baffle 32 is symmetrically penetrated by fixing rods 34 whose ends are fixed to the inner wall of the heat dissipation frame 2, and the outer wall of the fixing rods 34 is wrapped with a return spring 35. One end of the return spring 35 is welded to the inner wall of the heat dissipation frame 2, and the other end of the return spring 35 is fixed to the side wall of the inner baffle 32.
[0020] Connecting rods 33 are symmetrically fixed on both sides of the inner baffle 32, and the side walls of the heat dissipation frame 2 are penetrated by a slide rail 21 matching the connecting rod 33, and the end of the connecting rod 33 passes through the slide rail 21 and is fixedly connected to an induction wind plate 4 perpendicular to the outer wall of the heat dissipation frame 2.
[0021] A connecting plate 41 is fixed between the two induction air plates 4 symmetrically arranged on the sides of the heat dissipation frame 2 . Gear blocks are evenly distributed on the inner side of the middle section of the connecting plate 41 , and the inner side of the gear blocks is meshed with a gear 51 installed on the outer wall of the heat dissipation frame 2 .
[0022] Guide rods 52 fixed to the outer wall of the heat dissipation frame 2 are symmetrically arranged on both sides of the gear 51, and the lower end of the slide rod 53 is slidably arranged on the outer wall of the guide rod 52, and the upper end of the slide rod 53 is fixed with a blast pressure plate 54 whose inner side is meshed with the gear 51.
[0023] The two symmetrical air blowing pressure plates 54 on both sides of the gear 51 are horizontally corresponding to the breathing membrane 5 on the side of the heat dissipation frame 2, and the breathing membrane 5 is made of elastic material.
[0024] Working principle: When using this prefabricated substation, Figure 1 、 Figure 2 and Figure 3 The figure shows a schematic diagram of four heat dissipation frames 2 combined on a transformer substation box 1. The heat generated by the transformer substation box 1 during continuous operation will be concentrated in the upper part of the box. Therefore, the heat dissipation part in the present invention is also arranged in the upper part of the box where the heat is more concentrated.
[0025] Normally, in a short period of time, the wind will only blow towards the substation box 1 from one direction. When the wind blows from one direction of the four sides of the substation box 1, it will first be sensed by the spiral radiator 3 evenly distributed on the windward side, and at the same time, the induction wind plates 4 on both sides will also sense it synchronously. Under the action of the wind, the induction wind plates 4 on both sides will carry the common inner baffle 32 on the inner side to move inward. Similarly, the inner baffle 32 on the opposite side will move in the same direction under the action of the induction wind plates 4 on both sides, and the inner baffle 32 on the windward side will pull the radiator 3 on the windward side inward through a number of center rods 31. After being subjected to the pulling force and under the support of the wind, the spiral center end of the radiator 3 forms a trumpet shape concave toward the inside of the box, so that the spiral gap increases rapidly. At this time, the wind can quickly enter the box through the larger spiral gap. At the same time, the inner baffle 32 on the leeward side will push the radiator 3 on the leeward side outward through the center push rod 31, so that the spiral center end of the radiator 3 forms a trumpet shape protruding outward, and the spiral gap increases rapidly. At this time, the hot air inside the box can be discharged through the larger spiral gap on the leeward side. When there is wind, the spiral gap of the radiator 3 on the inlet and outlet will adaptively increase to improve the heat exchange efficiency. When the wind stops, the spiral gap of the radiator 3 on the inlet and outlet is relatively small but not completely closed to ensure normal heat dissipation. At the same time, the design of the spirally coiled radiator 3 can prevent external debris from directly invading the box, and has a high self-protection effect. The air separation problem mentioned in the background art cannot be solved by simply changing the size of the air inlet and outlet. Therefore, the present invention has made additional improvements. When the induction air plates 4 on both sides of the box body move synchronously against the wind, they will synchronously drive the connecting plate 41 in the middle for connecting the two induction air plates 4 to move horizontally. Figure 5 and Figure 6 As shown, the connecting plate 41 moving in one direction downwind will synchronously drive the gear 51 to rotate adaptively through the tooth block in the middle section, and when the gear 51 rotates, it will produce an effect of pushing forward on one side and pulling backward on the other side on the blast pressure plates 54 on both sides, so that one of the blast pressure plates 54 quickly approaches the corresponding breathing membrane 5 and quickly impacts the breathing membrane 5, so that the breathing membranes 5 on both sides quickly shrink into the box and compress the upper space in the box to a certain extent. At this time, the induction plate 4 is moving, indicating that the radiators 3 on the windward and leeward sides are in an open state with a large gap. In addition, it should be noted that the wind does not always blow towards The wind blows in one direction, but it does not blow in one direction continuously. Therefore, when the wind stops or weakens in that direction, the corresponding induction wind plate 4, connecting plate 41 and blowing pressure plate 54 will quickly reset and release the squeeze on the breathing membrane 5, thereby utilizing the start and stop of the wind to make the breathing membrane 5 produce a breathing effect. On the one hand, the spatial compression of the breathing membrane 5 on both sides is utilized to force the hot air in the box to be discharged from the radiator 3 on the leeward side. On the other hand, the breathing membrane 5 with a breathing effect will accelerate the flow of air in the upper part of the box to break the air partition in the box, so that the hot air in the upper part of the box can be quickly discharged through the wind flow of the inlet and outlet.
[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A prefabricated substation, comprising a substation box (1), characterized in that: A heat dissipation frame (2) is stacked in the hot air concentration area above the transformer substation box (1), and spirally coiled heat sinks (3) are evenly distributed on both sides of the heat dissipation frame (2), and an inner baffle (32) that can move horizontally with the spiral expansion and contraction of the heat sink (3) is arranged inside the heat sink (3), and a breathing membrane (5) that can reciprocate horizontally with the inner baffle (32) to produce a breathing effect is symmetrically arranged at the center of the other two sides of the heat dissipation frame (2).
2. A prefabricated substation according to claim 1, characterized in that: A central stopper (31) is fixed to the spiral central end of the radiator (3), and the central stopper (31) is fixedly connected to the inner baffle (32).
3. A prefabricated substation according to claim 2, characterized in that: Fixed rods (34) whose ends are fixed to the inner wall of the heat dissipation frame (2) are symmetrically passed through both sides of the inner baffle plate (32), and a return spring (35) is wound around the outer wall of the fixed rod (34), one end of the return spring (35) is welded to the inner wall of the heat dissipation frame (2), and the other end of the return spring (35) is fixed to the side wall of the inner baffle plate (32).
4. A prefabricated substation according to claim 2, characterized in that: Connecting rods (33) are symmetrically fixed on both sides of the inner baffle plate (32), and a slide rail (21) matching the connecting rod (33) is provided through the side wall of the heat dissipation frame (2), and the end of the connecting rod (33) passes through the slide rail (21) and is fixedly connected to an induction air plate (4) perpendicular to the outer side wall of the heat dissipation frame (2).
5. A prefabricated substation according to claim 4, characterized in that: A connecting plate (41) is fixed between the two induction air plates (4) symmetrically arranged on the sides of the heat dissipation frame (2), tooth blocks are evenly distributed on the inner side of the middle section of the connecting plate (41), and the inner side of the tooth block is meshedly connected with a gear (51) mounted on the outer wall of the heat dissipation frame (2).
6. A prefabricated substation according to claim 5, characterized in that: Guide rods (52) fixed to the outer wall of the heat dissipation frame (2) are symmetrically arranged on both sides of the gear (51), and the lower end of a slide rod (53) is slidably arranged on the outer wall of the guide rod (52), and an air blast pressure plate (54) is fixed to the upper end of the slide rod (53), the inner side of which is meshed with the gear (51).
7. A prefabricated substation according to claim 6, characterized in that: The two symmetrical air blowing pressure plates (54) on both sides of the gear (51) correspond horizontally to the breathing membrane (5) on the side of the heat dissipation frame (2), and the breathing membrane (5) is made of elastic material.