Wind power plant energy storage device
By designing heat transfer components and airflow circulation components in the wind farm energy storage device, the problem of insufficient heat dissipation of energy storage equipment is solved, effective heat dissipation and protection are achieved, battery life is extended, and emergency fire extinguishing functions are provided.
Patent Information
- Application Number
- CN202421946938.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The existing wind farm energy storage equipment has limited heat dissipation effect, which affects the normal operation of the power supply and lacks effective protection and emergency fire extinguishing measures.
A wind farm energy storage device is designed, including a heat transfer component and an airflow circulation component. By covering the energy storage battery pack and forming an airflow path inside, effective heat dissipation is achieved, and a dry powder fire extinguishing agent container is installed inside the energy storage box to extinguish the fire in an emergency.
It improves the heat dissipation effect of energy storage batteries, prevents mechanical damage, extends service life, and effectively reduces losses in the event of a fire.
Smart Images
Figure CN223092937U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy storage devices, and particularly relates to a wind farm energy storage device. Background Art
[0002] Wind farm energy storage means that after converting wind energy into electric energy, the electric energy is stored in an energy storage device. The energy storage device can be different types of devices such as batteries, compressed air energy storage, flow batteries, and supercapacitors.
[0003] The role of wind farm energy storage is to solve the problem of the volatility of wind power generation. Since wind power generation is affected by wind speed and wind direction, its power output will also fluctuate, and this kind of fluctuation will affect the stability of power supply. By storing electric energy, the excess electric energy can be stored when the wind power generation output is excessive, so as to be released when the wind power generation output is insufficient, thereby maintaining the stability of power supply.
[0004] At present, the existing small-scale energy storage devices in wind farms are usually box-type, and energy storage battery packs are placed inside. During the working process, certain heat will be generated, so heat dissipation is required to keep the operating temperature within the normal range. And the energy storage devices in the prior art generally achieve heat dissipation through heat dissipation ports in cooperation with heat dissipation fans. This heat dissipation method has limited heat dissipation effect on the energy storage battery pack, thereby affecting the normal operation of the power supply.
[0005] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is the closest prior art. Summary of the Utility Model
[0006] The purpose of the utility model is to solve the above deficiencies and provide a wind farm energy storage device.
[0007] To solve the above technical problems, the utility model adopts the following technical scheme: A wind farm energy storage device, including an energy storage battery pack arranged inside an energy storage box and composed of a plurality of energy storage batteries. Airflow inlets and outlets are oppositely arranged on both sides of the energy storage box. The device further includes:
[0008] A heat transfer component, which is covered outside the energy storage battery pack and is used to take away the heat on the surface of the energy storage battery;
[0009] An airflow circulation component, including support frames arranged on the left and right sides of the energy storage battery pack, and a fan arranged at the end of one of the support frames, which is used to form an air circulation path inside the energy storage box.
[0010] Furthermore, the heat transfer component includes a top plate arranged on the top of the energy storage battery pack, a through opening is arranged on the top plate corresponding to the top of each energy storage battery formed on the energy storage battery pack, airflow structure plates are arranged on the top plate and at intervals on the circumference of the energy storage battery pack, a tangent plate tangent to the energy storage battery is arranged at the air inlet end of the airflow structure plate, and an airflow guide port 1 for extracting heat from the surface of the energy storage battery is arranged on the tangent plate.
[0011] Furthermore, the intersection area of the adjacent airflow structure plates is provided with an airflow guide port 2 for conducting heat away.
[0012] Furthermore, ventilation units for forming an airflow passage are arranged on both sides of the exterior of the support frame, and the ventilation unit includes a mesh plate 1 and a mesh plate 2 slidably arranged on the mesh plate 1.
[0013] Furthermore, a support portion of the mesh plate 2 placed on an end block of one side of the mesh plate is provided with a screw rod and a guide rod, a motor is provided on the top of the screw rod, and evenly distributed air flow openings are provided on both the mesh plate 1 and the mesh plate 2.
[0014] Furthermore, an operating handle for pulling and pulling is provided at the outer side end of the mesh plate 1.
[0015] Furthermore, the airflow circulation component also includes a plurality of airflow cavities evenly arranged at the bottom of the energy storage box, and heat dissipation fins for heat conduction are evenly arranged outside the plurality of airflow cavities.
[0016] Furthermore, an end cover is provided on the top of the energy storage box, a receiving groove for storing dry powder fire extinguishing agent is provided on the end cover, and a closed plywood is provided on the receiving groove.
[0017] Furthermore, a plurality of semicircular convex pieces are arranged on the plywood; the semicircular convex pieces are used to support the weight of the dry powder fire extinguishing agent and are easily melted by heat.
[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model can not only separate and protect the individual energy storage batteries constituting the energy storage battery pack through the heat transfer component provided, thereby preventing adjacently distributed energy storage batteries from being damaged due to external force squeezing, but also can independently take away the heat on the surface of the individual energy storage batteries, thereby ensuring the good application performance of the energy storage battery pack composed of multiple energy storage batteries; and through the airflow circulation component provided, it can form an airflow path in a good state, and establish an internal circulation path under the condition of closing the external circulation path, thereby maintaining a good heat dissipation effect inside the energy storage box; and through the provided accommodating groove, the independently separated energy storage batteries can be subjected to emergency fire extinguishing treatment, thereby reducing the expansion of losses. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation on the present utility model. In the drawings:
[0020] Figure 1 It is a three-dimensional structural diagram of a perspective of the whole of an embodiment of the present utility model;
[0021] Figure 2 It is a three-dimensional structural diagram of a perspective of an energy storage box of an embodiment of the present utility model;
[0022] Figure 3 It is a three-dimensional structural diagram of another perspective of an energy storage box of an embodiment of the present utility model;
[0023] Figure 4 is Figure 3 the enlarged structural diagram at A in
[0024] Figure 5 It is a schematic plane structural diagram of a perspective of a heat transfer component of an embodiment of the present utility model;
[0025] Figure 6 is Figure 5 the enlarged structural diagram at B in
[0026] Figure 7 It is a schematic bottom surface structural diagram of an energy storage box of an embodiment of the present utility model;
[0027] Figure 8 It is a schematic bottom surface sectional structural diagram of an energy storage box of an embodiment of the present utility model;
[0028] Figure 9 It is a schematic bottom surface structural diagram of an end cover of an embodiment of the present utility model.
[0029] In the figure: 1. Energy storage box; 2. Energy storage battery pack; 3. Heat transfer component; 31. Top plate; 32. Through opening; 33. Air flow structure plate; 331. Tangent plate; 332. Air flow guide port one; 333. Air flow guide port two; 4. Air flow circulation component; 41. Support frame; 42. Fan; 43. Ventilation unit; 431. Mesh plate one; 432. Mesh plate two; 433. Lead screw; 434. Guide rod; 435. Air flow through opening; 436. Operating handle; 44. Air flow through cavity; 441. Heat dissipation fins; 5. Air flow inlet; 6. Air flow outlet; 7. End cover; 8. Accommodating groove; 81. Composite plate; 82. Semi-circular convex piece. Detailed implementation manners
[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0032] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, "a plurality" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0033] As Figures 1-9 shown, a wind farm energy storage device of the present utility model includes an energy storage battery pack 2 disposed inside an energy storage box 1 and composed of a plurality of energy storage batteries. Airflow inlets 5 and airflow outlets 6 are oppositely arranged on both sides of the energy storage box 1. It further includes:
[0034] a heat transfer component 3, which is disposed to cover the outside of the energy storage battery pack 2 and is used to take away the heat on the surface of the energy storage battery;
[0035] The airflow circulation assembly 4 includes support frames 41 arranged on the left and right sides of the energy storage battery group 2, and a fan 42 arranged at the end of one side support frame 41, which is used to form an airflow passage inside the energy storage box 1. In this design, the airflow circulation assembly 4 designed on both sides of the energy storage battery group 2 and the energy storage battery group 2 separated and covered outside the energy storage battery group 2 and inside the energy storage box 1 can effectively prevent the extrusion of the single energy storage battery formed on the energy storage battery group 2 while transferring heat, thereby avoiding mechanical damage to the surface of the energy storage battery formed on the energy storage battery group 2 due to external force extrusion, and improving the service life of the energy storage battery.
[0036] It should be noted that the energy storage box 1 of this embodiment and the energy storage battery group 2 designed inside the energy storage box 1 are used for storing electricity in wind farm area applications. In addition, the energy storage box 1 of this embodiment is provided with a plurality of energy storage stations for wind farm energy storage and the connection method adopts cable connection.
[0037] In one embodiment, the heat transfer assembly 3 includes a top plate 31 disposed on the top of the energy storage battery group 2, and a through hole 32 is disposed on the top plate 31 corresponding to each energy storage battery formed on the energy storage battery group 2. Airflow structure plates 33 are disposed on the top plate 31 and at intervals on the circumference of the energy storage battery group 2, and a tangent plate 331 tangent to the energy storage battery is disposed on the air inlet end of the airflow structure plate 33. In this design, the airflow structure plate 33 is fixed to the bottom of the energy storage box 1 by a method including but not limited to welding, and the airflow structure plate 33 is as follows Figure 5 As shown in the figure, sheet metal processing is performed, wherein each ring formed on the airflow structure plate 33 will be sequentially mounted on the outside of the corresponding single energy storage battery, and the tangent plate 331 integrally formed on the airflow structure plate 33 will be tangent to the single energy storage battery, so as to form a smooth air guide surface, so that the heat attached to the outer surface of the single energy storage battery will be transferred under the flow of airflow.
[0038] Preferably, the tangent plate 331 is provided with an airflow guide 332 for conducting heat from the surface of the energy storage battery. This design avoids airflow accumulation around the periphery of a single energy storage battery.
[0039] In one embodiment, the intersection area of the adjacent airflow structure plates 33 is provided with an airflow guide port 2 333 for conducting heat. Figure 5 The second airflow guide port 333 machined by turning can establish a good airflow passage on the entire airflow structure plate 33 .
[0040] In one embodiment, ventilation units 43 for forming air flow passages are provided on both outer sides of the support frame 41. The ventilation unit 43 includes a first mesh plate 431 and a second mesh plate 432 slidably disposed on the first mesh plate 431. With this design, by vertically sliding and combining the second mesh plate 432 in the groove machined by turning on one side area of the first mesh plate 431, the relative height change of the second mesh plate 432 on the surface of the first mesh plate 431 can be adjusted.
[0041] In one embodiment, a lead screw 433 and a guide rod 434 are provided on the support portion of the second mesh plate 432 placed on the side end block of the first mesh plate 431. A motor is provided at the top of the lead screw 433. Air flow openings 435 are evenly distributed on both the first mesh plate 431 and the second mesh plate 432. With this design, through the first mesh plate 431 longitudinally pulled and installed on both outer sides of the support frame 41 and inside the energy storage box 1, and the second mesh plate 432 vertically movably installed in the groove machined by turning on one side area of the first mesh plate 431, and the support portion of the second mesh plate 432 placed in the groove machined by turning on the side end block of the first mesh plate 431 successively adopts the lead screw 433 connected by screw rotation and the guide rod 434 connected by sliding guidance. When the motor fixed by the coupling at the top of the lead screw 433 is started, the lead screw 433 rotates, driving the second mesh plate 432 connected by screw fit to move vertically under the limitation of the guide rod 434, achieving the effect of adjusting the dislocation of the air flow openings 435 machined on the first mesh plate 431 and the second mesh plate 432. This not only meets the adjustment of the air volume size but also can close the external circulation air flow passage in rainy weather outdoors to prevent rainwater from entering the interior of the energy storage box 1, improving the protection effect on the energy storage device.
[0042] It should be noted that the moving range of the second mesh plate 432 on the surface of the first mesh plate 431 is below the height of the air flow openings 435.
[0043] In one embodiment, an operating handle 436 for pulling and moving is provided at the outer side end of the first mesh plate 431. With this design, through the operating handle 436 welded at the outer side end of the first mesh plate 431 and the groove machined on the front panel of the energy storage box 1 for fitting and embedding the operating handle 436, the ventilation unit 43 can be pushed in and also pulled out, facilitating the regular cleaning and maintenance of the ventilation unit 43.
[0044] In one embodiment, the air flow circulation assembly 4 further includes a plurality of air flow cavities 44 evenly provided at the bottom of the energy storage box 1. With this design, through the plurality of air flow cavities 44 reserved by turning and machining at the bottom of the energy storage box 1, the spaces separated on both sides of the energy storage box 1 can be communicated under the action of the air flow cavities 44. Cooperating with the fan 42, an internal circulation air flow passage is formed inside the energy storage box 1.
[0045] Preferably, heat dissipation fins 441 for heat conduction are uniformly arranged outside the plurality of air flow cavities 44. With this design, several heat dissipation fins 441 with the same spacing are welded outside the plurality of air flow cavities 44 to expand the heat dissipation area and play a heat dissipation role.
[0046] It should be noted that the heat dissipation fins 441 are distributed at equal column pitches, while the air flow cavities 44 are distributed at equal row pitches.
[0047] In one embodiment, an end cover 7 is provided on the top of the energy storage box 1. A receiving groove 8 for storing dry powder fire extinguishing agent is provided on the end cover 7, and a closing plywood 81 is provided on the receiving groove 8. With this design, through the end cover 7 hinged to the energy storage box 1 and the receiving groove 8 machined on the end cover 7 for storing dry powder fire extinguishing agent, dry powder fire extinguishing agent for emergency fire extinguishing treatment can be stored.
[0048] It should be noted that the dry powder fire extinguishing agent stored in the receiving groove 8 can be ammonium phosphate, which can effectively isolate oxygen and prevent the spread of fire.
[0049] In one embodiment, several semi-circular convex pieces 82 are provided on the plywood 81; the semi-circular convex pieces 82 are used to support the weight of the dry powder fire extinguishing agent and are easy to heat and melt. With this design, through the plywood 81 embedded and spliced on the end face of the receiving groove 8 facing the energy storage battery pack 2 and the semi-circular convex pieces 82 pasted in the opening machined on the plywood 81, corresponding fire extinguishing treatment can be carried out on a single energy storage battery formed on the energy storage battery pack 2, avoiding the increase of fire and reducing certain economic losses.
[0050] It should be noted that the semi-circular convex pieces 82 can be made of polypropylene film, and the position and number of the semi-circular convex pieces 82 correspond one-to-one with the energy storage batteries formed on the energy storage battery pack 2.
[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.
Claims
1. A wind farm energy storage device, comprising an energy storage battery pack (2) arranged inside an energy storage box (1) and composed of a plurality of energy storage batteries. Air flow inlets (5) and air flow outlets (6) are oppositely arranged on both sides of the energy storage box (1). It is characterized in that: It further includes: A heat transfer component (3), which is disposed to cover the outside of the energy storage battery pack (2) and is used to take away the heat on the surface of the energy storage battery; An air flow circulation component (4), which includes support frames (41) disposed on the left and right sides of the energy storage battery pack (2), and a fan (42) disposed at the end of one of the support frames (41) and is used to form an air flow passage inside the energy storage box (1).
2. The energy storage device for a wind farm according to claim 1, wherein: The heat transfer component (3) includes a top plate (31) disposed on the top of the energy storage battery pack (2). A through hole (32) is provided on the top plate (31) corresponding to each energy storage battery formed on the energy storage battery pack (2). Air flow structure plates (33) are spacedly disposed on the top plate (31) and on the peripheral surface of the energy storage battery pack (2). A tangent plate (331) tangent to the energy storage battery is provided at the air inlet end of the air flow structure plate (33). An air flow guide port one (332) for guiding the heat on the surface of the energy storage battery out is provided on the tangent plate (331).
3. The energy storage device for a wind farm according to claim 2, characterized in that: An air flow guide port two (333) for guiding out heat is provided at the intersection area of adjacent air flow structure plates (33).
4. A wind farm energy storage device according to claim 1, characterized in that: Ventilation units (43) for forming an air flow passage are disposed on both outer sides of the support frame (41). The ventilation unit (43) includes a mesh plate one (431) and a mesh plate two (432) slidably disposed on the mesh plate one (431).
5. The energy storage device for a wind farm according to claim 4, wherein: A lead screw (433) and a guide rod (434) are provided at the support part of the end block on the side of the mesh plate one (431) of the mesh plate two (432). A motor is provided at the top of the lead screw (433). Air flow through holes (435) are uniformly provided on both the mesh plate one (431) and the mesh plate two (432).
6. The energy storage device for a wind farm according to claim 4, characterized in that: An operation handle (436) for pulling and moving is provided at the outer side end of the mesh plate one (431).
7. A wind farm energy storage device according to claim 4, characterized in that: The air flow circulation component (4) further includes a plurality of air flow cavities (44) uniformly disposed at the bottom of the energy storage box (1). Heat dissipation fins (441) for heat conduction are uniformly disposed outside the plurality of air flow cavities (44).
8. A wind farm energy storage device according to claim 1, characterized in that: An end cover (7) is provided at the top of the energy storage box (1). A receiving groove (8) for storing dry powder fire extinguishing agent is provided on the end cover (7). A closing plate (81) is provided on the receiving groove (8).
9. A wind farm energy storage device according to claim 8, characterized in that: A plurality of semi-circular convex pieces (82) are provided on the closing plate (81); the semi-circular convex pieces (82) are used to support the weight of the dry powder fire extinguishing agent and are easily heated and melted.