Energy storage tank with built-in octagonal water distributor

Abstract

The invention discloses an energy storage tank with a built-in octagonal water distributor, and relates to the technical field of energy storage equipment. Comprising an energy storage tank body, a water distribution structure arranged in the energy storage tank body and a fixing structure used for fixing the water distribution structure. The water distribution structure comprises a plurality of main water distribution pipes which are distributed in an octagonal manner, a water inlet pipe and a first water distribution branch pipe which are communicated with the main water distribution pipes, and a second water distribution branch pipe communicated with the first water distribution branch pipe. The first water distribution branch pipes and the second water distribution branch pipes form a forked water distribution path, and the joints are of forked inclined non-right-angle structures, so that the problem that energy loss is easily generated by water flow impact in a traditional right-angle water distribution pipeline is solved, and the situation that the flow velocity of water flow attenuates too fast due to energy loss is avoided; it is ensured that the far-end water distribution area can still obtain water flow with the enough flow speed, and water distribution uniformity is maintained; meanwhile, the water flow backflow phenomenon caused by impact can be avoided, and backflow water flow and forward water flow are prevented from interfering with each other to damage the stability of a flow field.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment technology, specifically to an energy storage tank with a built-in octagonal water distributor. Background Technology

[0002] Energy storage tanks, as key equipment in energy storage systems, are mainly used to store energy media such as hot and cold water, and molten salt. Energy storage and release are achieved through temperature changes or state transitions of the media, and they are widely used in fields such as air conditioning energy storage and solar thermal power generation. Water distributors, as core functional components within the energy storage tank, must uniformly transport the externally input medium into the tank or uniformly discharge the medium from within the tank during charging or releasing energy. This ensures a stable temperature field within the tank, preventing a decrease in energy storage capacity due to excessively high or low local temperatures, and minimizing energy loss during medium flow, thus ensuring the overall efficient operation of the energy storage system.

[0003] However, existing energy storage tanks equipped with octagonal water distributors still have many shortcomings in practical applications: Firstly, the eight branches of some octagonal water distributors are mostly single-stage straight pipe designs. The gaps between adjacent branches are easily formed due to the non-overlapping water distribution ranges, resulting in water distribution blind zones in the energy storage tank. The medium in the blind zone cannot exchange heat with the flowing medium in time, causing uneven temperature distribution in the tank and affecting energy storage efficiency. Secondly, some octagonal water distributors use right-angle turning structures for their branches. When the medium flows through the turning point, it is easy to generate direct impact, which not only causes a lot of energy loss, but may also cause medium backflow, interfere with the normal flow field, and cause the medium velocity of the far-end branch to decay too quickly, further aggravating the uneven water distribution. Therefore, an energy storage tank with a built-in octagonal water distributor is proposed to solve this problem. Summary of the Invention

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an energy storage tank with a built-in octagonal water distributor, which solves the problems mentioned in the background section.

[0005] Technical solution To achieve the above objectives, the present invention is implemented through the following technical solution: an energy storage tank with a built-in octagonal water distributor, comprising: an energy storage tank body, a water distribution structure disposed inside the energy storage tank body, and a fixing structure for fixing the water distribution structure; The water distribution structure includes multiple main water distribution pipes, an inlet pipe connected to the main water distribution pipes, a first water distribution branch pipe, and a second water distribution branch pipe connected to the first water distribution branch pipe. An arc-shaped water distribution pipe is fixed on the main water distribution pipe, and the arc-shaped water distribution pipes on adjacent main water distribution pipes are close to each other. The main water distribution pipe has an inclined non-right-angle structure. A flow regulating pipe is provided at the connection between the main water distribution pipe and the first water distribution branch pipe. A dispersion structure for dispersing water flow is provided at the connection between the first water distribution branch pipe and the second water distribution branch pipe.

[0006] Preferably, the flow regulating pipe has a funnel-shaped structure, and its outlet gradually narrows along the water flow direction.

[0007] Preferably, the dispersion structure includes a front dispersion hood and a rear dispersion hood, the front dispersion hood being provided with a front dispersion screen and the rear dispersion hood being provided with a rear dispersion screen, the front dispersion screen and the rear dispersion screen corresponding to each other.

[0008] Preferably, the front dispersion hood has a front dispersion groove, and the rear dispersion hood has a rear dispersion groove.

[0009] Preferably, the front dispersion cover and the rear dispersion cover are connected by a positioning post and a track groove, and the track groove is provided with an elastic piece for limiting the position.

[0010] Preferably, the main water distribution pipe includes an inclined section and a horizontal section, with the inclined section and the horizontal section smoothly transitioning to form a non-right-angle structure.

[0011] Preferably, the fixing structure includes a fixing column, a fixing ring sleeved on the fixing column, and a reinforcing rib, wherein the fixing ring is connected to the main water distribution pipe.

[0012] Preferably, the two ends of the reinforcing rib are connected to the fixing ring and the fixing column respectively, and are evenly distributed along the circumference of the fixing ring.

[0013] Preferably, the energy storage tank body has a lid hinged to the top, a transparent observation window on the side wall, and a support column fixed to the bottom.

[0014] Beneficial effects The present invention has the following beneficial effects: (1) The energy storage tank with a built-in octagonal water distributor has a water distribution structure in which multiple main water distribution pipes distributed in an octagonal shape form a branched water distribution path with the first water distribution branch pipe and the second water distribution branch pipe. This can greatly expand the water distribution coverage area and allow water to be evenly delivered to different areas inside the energy storage tank. This solves the problem that traditional water distributors rely on single-stage pipes and have limited water distribution coverage area. It avoids the occurrence of local water distribution blind spots in the energy storage tank and prevents the medium temperature in the blind spot from being too different from other areas, thus affecting the overall energy storage efficiency of the energy storage tank.

[0015] (2) The energy storage tank with built-in octagonal water distributor forms a bifurcated water distribution path by the first water distribution branch pipe and the second water distribution branch pipe, and the connection is a bifurcated inclined non-right angle structure. This solves the problem of energy loss caused by water flow impact in traditional right angle water distribution pipes, avoids the water flow velocity decaying too fast due to energy loss, ensures that the water distribution area at the far end can still obtain water flow with sufficient velocity, and maintains water distribution uniformity. At the same time, it can also avoid the backflow phenomenon caused by impact, and prevent the backflow water flow from interfering with the forward water flow and destroying the flow field stability.

[0016] (3) This energy storage tank with a built-in octagonal water distributor solves the problem of traditional water distributors directly distributing water through a single-stage pipe outlet and the water flow easily forming a concentrated jet state by setting a dispersion structure. It avoids the concentrated jet impacting the medium layer inside the energy storage tank, prevents the temperature stratification damage caused by the disturbance of the medium layer, maintains the energy storage capacity of the energy storage tank, solves the problem of water flow blockage or incomplete dispersion that easily occurs when relying solely on screen dispersion, avoids the accumulation of some water flow due to the inability to pass through the screen, prevents the sudden surge of accumulated water flow that causes a sudden increase in local flow velocity, further ensures that the water flow enters the subsequent pipeline at a stable flow velocity, and improves the uniformity of water distribution.

[0017] (4) In this type of energy storage tank with a built-in octagonal water distributor, the front and rear dispersion covers are connected by a positioning column and a track groove. An elastic plate is provided at the track groove for limiting the position. During installation, it is only necessary to push the rear dispersion cover to make the positioning column slide along the track groove. After the elastic plate is deformed by force, the positioning is completed. During disassembly, pushing in the opposite direction will make the elastic plate deform again and disengage from the limiting position. This design solves the problem of traditional dispersion structures relying on fasteners such as bolts and the cumbersome disassembly and assembly process. It avoids the increase in downtime of the energy storage tank due to excessive disassembly and assembly time during maintenance, improves equipment maintenance efficiency, and reduces the impact of maintenance process on the continuous operation of the energy storage system.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an energy storage tank with a built-in octagonal water distributor according to the present invention; Figure 2 This is a schematic diagram of the water distribution structure in a built-in octagonal water distributor according to the present invention; Figure 3 This is a partially cross-sectional enlarged structural diagram of the combination of the dispersion structure and the water distribution structure in a built-in octagonal water distributor of the present invention. Figure 4 This is an exploded view of the dispersion structure in a built-in octagonal water distributor of the present invention; Figure 5 This is a schematic diagram of the front dispersion cover of a built-in octagonal water distributor according to the present invention from a first-view perspective. Figure 6 This is a schematic diagram of the front dispersion cover of a built-in octagonal water distributor from a second perspective of the present invention. Figure 7 This is a schematic diagram of the front and rear dispersion covers in a built-in octagonal water distributor according to the present invention; Figure 8 This is a partially enlarged structural diagram of the rear dispersion cover in a built-in octagonal water distributor according to the present invention.

[0020] In the diagram: 1. Energy storage tank body; 2. Tank cover; 3. Water distribution structure; 301. Water inlet pipe; 302. Main water distribution pipe; 303. First water distribution branch pipe; 304. Arc-shaped water distribution pipe; 305. Second water distribution branch pipe; 4. Fixing structure; 401. Fixing column; 402. Fixing ring; 403. Reinforcing rib; 5. Flow regulating pipe; 6. Dispersion structure; 601. Front dispersion cover; 602. Front dispersion screen; 603. Front dispersion trough; 604. Positioning column; 605. Rear dispersion cover; 606. Connecting ring; 607. Rear dispersion trough; 608. Rear dispersion screen; 609. Track groove; 610. Elastic sheet. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides a technical solution: an energy storage tank with a built-in octagonal water distributor, such as... Figures 1-8 As shown, it includes: an energy storage tank body 1, a water distribution structure 3 located inside the energy storage tank body 1, and a fixing structure 4 for fixing the water distribution structure 3. The water distribution structure 3 is also provided with a flow regulating pipe 5 and a dispersing structure 6 for dispersing the water flow, and the flow regulating pipe 5 and the dispersing structure 6 cooperate with each other. The water distribution structure 3 includes multiple main water distribution pipes 302 connected to the inlet pipe 301. One end of the inlet pipe 301 penetrates the bottom of the energy storage tank body 1, and a central water distribution head is fixed on the inlet pipe 301. The main water distribution pipes 302 are connected to the central water distribution head. One end of each of the multiple main water distribution pipes 302 is fixed with a first water distribution branch pipe 303 and an arc-shaped water distribution pipe 304. One end of the first water distribution branch pipe 303 is fixed with a second water distribution branch pipe 305. The flow regulating pipe 5 and the dispersion structure 6 are respectively set at the connection between the main water distribution pipe 302 and the first water distribution branch pipe 303, and the first water distribution branch pipe 303 and the second water distribution branch pipe 305. The main water distribution pipe 302, the first water distribution branch pipe 303 and the second water distribution branch pipe 305 are all connected by a multi-port pipe joint with a branch. The pipes in the entire water distribution structure 3 are all provided with upward-facing water outlet holes. The dispersion structure 6 includes a front dispersion cover 601 for initial dispersion of the water flow and a rear dispersion cover 605 for secondary dispersion of the water flow.

[0023] Both the main water distribution pipe 302 and the second water distribution branch pipe 305 have a bifurcated structure and are inclined. The main water distribution pipe 302 includes an inclined section and a horizontal section, which form a non-right-angle structure with an angle of 30 to 45 degrees. This structure is used to disperse and guide the direct water flow, avoiding energy loss and backflow caused by the water flow directly impacting the pipe wall that suddenly changes direction. The arc-shaped water distribution pipes 304 on the two adjacent main water distribution pipes 302 are close to each other. The radius of curvature of the arc-shaped water distribution pipes 304 matches the inner diameter of the energy storage tank body 1, and is between 1.5 meters and 2 meters. The two close arc-shaped water distribution pipes 304 can fill the water distribution gap between the two adjacent main water distribution pipes 302, resulting in a more uniform water distribution effect.

[0024] The fixing structure 4 includes a fixing column 401 fixed in the middle of multiple main water pipes 302, and a fixing ring 402 is fixed on the fixing column 401. The fixing ring 402 is fixedly connected to the inclined sections of several main water pipes 302. The reinforcing rib 403 is fixedly connected to the fixing column 401 through the fixing ring 402. The reinforcing rib 403 is made of stainless steel and has a triangular cross section. After being fixed by the main water pipes 302, the swaying amplitude of the main water pipes 302 under the impact of water flow can be controlled within 2 mm, resulting in better stability. At the same time, the connection of the reinforcing rib 403 further enhances the fixing effect, increasing the impact resistance of the overall structure by 30%.

[0025] The flow regulating pipe 5 has a funnel structure with a gradually decreasing outlet diameter, which increases the flow velocity of water transported over long distances and prevents uneven water distribution caused by a slow water flow.

[0026] One end of the front dispersion cover 601 has a concave structure, and a front dispersion screen 602 is fixed in the middle of the concave structure. The aperture of the front dispersion screen 602 is 3 mm. The front dispersion screen 602 corresponds to the outlet of the flow regulating pipe 5. The front dispersion cover 601 is also provided with a front dispersion groove 603. The width of the front dispersion groove 603 is 8 mm to 10 mm. After the water at the outlet is accelerated, it will first come into contact with the front dispersion screen 602. Some of the water is dispersed through the front dispersion screen 602. Since the aperture of the front dispersion screen 602 is small, it will block some water. The water that does not pass through will be dispersed through the front dispersion groove 603 and enter the space between the front dispersion cover 601 and the rear dispersion cover 605. One end of the rear dispersion hood 605 is a protruding structure, and a rear dispersion screen 608 is fixed in the middle of the protruding structure. The aperture of the rear dispersion screen 608 is 6 mm. The rear dispersion screen 608 corresponds to the front dispersion screen 602, and a rear dispersion groove 607 is opened on the rear dispersion hood 605. The width of the rear dispersion groove 607 is the same as that of the front dispersion groove 603. The water between the front dispersion hood 601 and the rear dispersion hood 605 will be dispersed again by the rear dispersion screen 608 and the rear dispersion groove 607. The water flow coverage range is expanded to 2 to 3 times that of the original jet. The flow velocity fluctuation is controlled within ±0.2 m / s. It flows into the subsequent section of the pipe evenly and stably, which can avoid uneven water distribution caused by excessive water flow. A positioning post 604 with a diameter of 5 mm is fixed to the inner wall of the front dispersion cover 601. A docking ring 606 with a diameter of 5 mm is fixed to one end of the rear dispersion cover 605. A track groove 609 with a width of 5.2 mm to 5.5 mm is formed on the docking ring 606 to cooperate with the positioning post 604. The positioning post 604 slides along the track groove 609 to connect the front dispersion cover 601 and the rear dispersion cover 605. At the same time, a positioning post is also fixed at the corner of the last track of the track groove 609. The elastic sheet 610 is made of spring steel or nitrile rubber with a thickness of 0.5 mm. It deforms under force and rebounds after the force is released. When the rear dispersion cover 605 slides to this position, it will resist the elastic sheet 610, causing it to deform and enter the final sliding track. After the elastic sheet 610 loses its resistance, it will rebound, thereby limiting the rear dispersion cover 605 that has entered the final sliding track and preventing it from falling off. The entire installation or disassembly process can be completed within 3 minutes, making the operation simpler and more convenient.

[0027] The top of the energy storage tank body 1 is hinged with a tank cover 2 for sealing. A rubber sealing ring is provided at the connection between the tank cover 2 and the energy storage tank body 1. A transparent observation window is also provided on the side wall of the energy storage tank body 1. The observation window is made of polycarbonate plate with a thickness of 10 mm. Support columns are fixed around the bottom of the energy storage tank body 1. The support columns are 30 cm to 40 cm high, made of carbon steel and with anti-corrosion treatment on the surface.

[0028] Working principle: The external hot and cold water flows first enter the water distribution structure 3 through the inlet pipe 301, which runs through the bottom of the energy storage tank body 1. The inlet pipe 301 evenly distributes the water flow into the main water distribution pipe 302. The main water distribution pipe 302 adopts a non-right-angle structure with the inclined section and the horizontal section forming an angle of 30 to 45 degrees. This structure can guide the water flow along the inclined direction, avoiding energy loss and backflow caused by the water flow directly impacting the pipe wall. At the same time, the fixing column 401, fixing ring 402, and reinforcing rib 403 in the fixing structure 4 work together to stably fix the main water distribution pipe 302 and prevent shaking caused by water flow impact.

[0029] When the water flows in the main water distribution pipe 302 to the connection with the first water distribution branch pipe 303, it first passes through the flow regulating pipe 5. The flow regulating pipe 5 is a funnel structure with an inlet of 40 mm and an outlet of 25 mm. By gradually reducing the diameter, the water flow velocity is increased from 0.8 m / s to 1.2 m / s, ensuring that the water flow can still maintain a sufficient flow velocity after entering the long-distance first water distribution branch pipe 303, and avoiding uneven water distribution caused by flow velocity decay.

[0030] The accelerated water flow enters the dispersion structure 6 and first contacts the front dispersion screen 602 in the middle of the front dispersion hood 601. The 3 mm aperture front dispersion screen 602 initially disperses the water flow, with some water passing through the screen holes. The water that does not pass through is diverted through the front dispersion groove 603 on the front dispersion hood 601 to the gap between the front dispersion hood 601 and the rear dispersion hood 605. Subsequently, the water flow in the gap comes into contact with the rear dispersion screen 608 on the rear dispersion hood 605. The 6 mm aperture rear dispersion screen 608, in conjunction with the rear dispersion groove 607, performs secondary dispersion on the water flow, further expanding the water flow coverage area and controlling the flow velocity fluctuation within ±0.2 m / s, ensuring that the water flow enters the second water distribution branch pipe 305 evenly and stably.

[0031] During the process of water flowing into the energy storage tank body 1 through the second water distribution branch pipe 305, the arc-shaped water distribution pipes 304 on the adjacent main water distribution pipes 302 move closer to each other, filling the water distribution gaps between the adjacent main water distribution pipes 302, achieving water distribution coverage of more than 95% of the internal cross-section of the energy storage tank body 1. At the same time, the operator can observe the internal water distribution through the transparent observation window on the side wall of the energy storage tank body 1, the rubber sealing ring on the tank cover 2 ensures the sealing performance of the energy storage tank body 1, and the support column at the bottom provides stable support for the entire device.

[0032] When maintenance is required on the dispersion structure 6, the rear dispersion cover 605 can be pushed so that the track groove 609 on the docking ring 606 slides along the positioning post 604 on the inner wall of the front dispersion cover 601. The elastic piece 610 at the corner of the track groove 609 deforms under force, allowing the rear dispersion cover 605 to detach. After maintenance is completed, the reverse operation can be performed to achieve quick installation. The whole process requires no additional tools and is easy to operate.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An energy storage tank with a built-in octagonal water distributor, characterized in that, include: Energy storage tank body (1), water distribution structure (3) provided inside the energy storage tank body (1), and fixing structure (4) for fixing the water distribution structure (3). The water distribution structure (3) includes multiple main water distribution pipes (302), an inlet pipe (301) connected to the main water distribution pipes (302), a first water distribution branch pipe (303), and a second water distribution branch pipe (305) connected to the first water distribution branch pipe (303). An arc-shaped water distribution pipe (304) is fixed on the main water distribution pipe (302), and the arc-shaped water distribution pipes (304) on adjacent main water distribution pipes (302) are close to each other. The main water distribution pipe (302) is an inclined non-right angle structure. A flow regulating pipe (5) is provided at the connection between the main water distribution pipe (302) and the first water distribution branch pipe (303). A dispersion structure (6) for dispersing water flow is provided at the connection between the first water distribution branch pipe (303) and the second water distribution branch pipe (305).

2. The energy storage tank with a built-in octagonal water distributor according to claim 1, characterized in that: The flow regulating pipe (5) has a funnel-shaped structure, and its outlet gradually narrows along the water flow direction.

3. The energy storage tank with a built-in octagonal water distributor according to claim 1, characterized in that: The dispersion structure (6) includes a front dispersion hood (601) and a rear dispersion hood (605). The front dispersion hood (601) is provided with a front dispersion screen (602), and the rear dispersion hood (605) is provided with a rear dispersion screen (608). The front dispersion screen (602) and the rear dispersion screen (608) correspond to each other.

4. The energy storage tank with a built-in octagonal water distributor according to claim 3, characterized in that: The front dispersion hood (601) has a front dispersion groove (603), and the rear dispersion hood (605) has a rear dispersion groove (607).

5. The energy storage tank with a built-in octagonal water distributor according to claim 3, characterized in that: The front dispersion cover (601) and the rear dispersion cover (605) are connected by a positioning post (604) and a track groove (609), and an elastic piece (610) for limiting is provided at the track groove (609).

6. The energy storage tank with a built-in octagonal water distributor according to claim 1, characterized in that: The main water distribution pipe (302) includes an inclined section and a horizontal section, with the inclined section and the horizontal section smoothly transitioning to form a non-right-angle structure.

7. The energy storage tank with a built-in octagonal water distributor according to claim 1, characterized in that: The fixed structure (4) includes a fixed column (401), a fixed ring (402) sleeved on the fixed column (401) and a reinforcing rib (403), and the fixed ring (402) is connected to the main water distribution pipe (302).

8. The energy storage tank with a built-in octagonal water distributor according to claim 7, characterized in that: The reinforcing rib (403) is connected to the fixing ring (402) and the fixing column (401) at both ends, and is evenly distributed along the circumference of the fixing ring (402).

9. The energy storage tank with a built-in octagonal water distributor according to claim 1, characterized in that: The energy storage tank body (1) is hinged to the top of the tank cover (2), and the side wall of the energy storage tank body (1) is provided with a transparent observation window, and the bottom of the energy storage tank body (1) is fixed with a support column.

Images