A type of energy storage battery rack

Abstract

This invention provides an energy storage battery rack on which a water fire suppression system is installed. The water fire suppression system includes a water fire suppression interface and water fire suppression pipes. One end of the water fire suppression pipes passes through a first reinforcing beam and connects to the water fire suppression interface, which is used to connect to a fire truck. The other end of the water fire suppression pipes passes through a second reinforcing beam and is distributed in a second installation area. This invention places the water fire suppression interface on the first reinforcing beam, utilizing the high strength characteristics of the first reinforcing beam to bear the pipe stress, avoiding the need for a separate support structure and avoiding the occupation of internal space. The water fire suppression pipes are laid at the bottom of the battery rack to avoid cross-arrangement, freeing up usable space in the first and second installation areas, increasing layout density, and making the structural design more compact.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage battery technology, and specifically relates to an energy storage battery rack. Background Technology

[0002] Water-based fire suppression systems are primarily used for continuous cooling after an open flame from a lithium battery has been extinguished, preventing thermal runaway and reignition.

[0003] Existing containerized energy storage systems are typically equipped with water-based fire suppression systems to meet safety regulations, with internal space utilization becoming a core design consideration. However, traditional water-based fire suppression system layouts have significant drawbacks: for example, fire suppression pipes are laid directly inside electrical or battery compartments, occupying already limited space for core equipment, leading to a crowded equipment layout and maintenance difficulties; the cross-layout of pipelines and fire suppression pipes within electrical / battery compartments may interfere with cooling air ducts, increasing safety hazards; and increasing the size of the container to accommodate fire suppression pipes leads to higher transportation costs, violating the compact principle of modular design. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this utility model provides an energy storage battery rack, in which the water fire-fighting interface is located on the first reinforcing beam. The high strength of the first reinforcing beam is used to bear the stress of the pipes, avoiding the need for a separate support structure and avoiding the occupation of internal space. The water fire-fighting pipes are laid at the bottom of the battery rack to avoid cross-arrangement, freeing up usable space in the first and second installation areas, increasing the layout density, and making the structural design more compact.

[0005] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0006] This utility model provides an energy storage battery rack, on which a water fire-fighting system is installed;

[0007] The battery rack includes a mounting plate, a bottom plate and a top plate arranged opposite to each other, and a first end plate and a second end plate arranged opposite to each other. A set of opposite sides on the mounting plate are respectively connected to the bottom plate and the top plate, and another set of opposite sides on the mounting plate are respectively connected to the first end plate and the second end plate.

[0008] The mounting plate is divided into at least one first mounting area for mounting electrical modules and one second mounting area for placing battery modules along the direction from the first end plate to the second end plate, and a partition is provided between the first mounting area and the second mounting area.

[0009] A first reinforcing beam is provided between the first end plate and the bottom plate, and a second reinforcing beam is provided between the partition plate and the bottom plate;

[0010] The water fire protection system includes a water fire protection interface and a water fire protection pipe. One end of the water fire protection pipe passes through the first reinforcing beam and is connected to the water fire protection interface. The water fire protection interface is used to connect to a fire truck. The other end of the water fire protection pipe passes through the second reinforcing beam and is distributed in the second installation area.

[0011] In some implementations, a first cover plate is provided between the first reinforcing beam and the second reinforcing beam to cover the water fire-fighting pipeline, thereby achieving a concealed design of the water fire-fighting pipeline, improving aesthetics and protection, and physically isolating the water fire-fighting pipeline from the electrical module to avoid adverse effects caused by cross-arrangement.

[0012] In some implementations, rock wool is filled between the first cover plate and the bottom plate to provide thermal insulation.

[0013] In some implementations, the water fire-fighting pipeline includes a first straight pipe section, a first double-connector, and a second straight pipe section. The two ends of the first double-connector are respectively connected to the first straight pipe section and the second straight pipe section, and the first straight pipe section is perpendicular to the second straight pipe section.

[0014] The first straight pipe section is located within the first installation area, and the second straight pipe section is located within the second installation area.

[0015] In some implementations, a clamping plate is provided between the second mounting area and the base plate, and the clamping plate has a clearance position for allowing the second straight pipe portion to pass through.

[0016] In some implementations, a second cover plate is provided at the clearance position to cover the first double-connector, thereby achieving a concealed design of the first double-connector, improving aesthetics and protection, while physically isolating the water fire-fighting pipes and battery modules to avoid adverse effects caused by cross-arrangement.

[0017] In some implementations, rock wool is filled between the clamping plate and the base plate.

[0018] In some implementations, the second mounting area is divided into several sub-mounting areas along the direction from the first end plate to the second end plate;

[0019] The water fire-fighting pipeline also includes a connecting pipe section and a third straight pipe section distributed in several of the sub-installation areas, wherein the third straight pipe section is connected to the second straight pipe section through the connecting pipe section;

[0020] The third straight pipe section is equipped with several water spray nozzles to facilitate continuous cooling of the battery module after the open flame is extinguished, preventing thermal runaway and reignition.

[0021] In some implementations, the water fire-fighting pipeline also includes several fixed supports;

[0022] Several of the aforementioned fixing brackets are used to fix the third straight pipe section to the mounting plate or the top plate, thereby improving the installation stability of the third straight pipe section and thus enhancing the overall stability.

[0023] In some implementations, the connecting pipe section includes at least straight pipe components, double-connector components, and tee-connector components, enabling flexible layout of water fire-fighting pipelines.

[0024] In summary, this utility model has at least the following advantages:

[0025] 1. The present invention provides an energy storage battery rack in which the water fire-fighting interface is set on the first reinforcing beam. The high strength characteristics of the first reinforcing beam are used to bear the stress of the pipeline, avoiding the need for a separate support structure. The external design of the water fire-fighting interface facilitates quick docking with fire trucks and avoids occupying internal space. The concealed passage of the water fire-fighting pipeline is achieved by pre-embedding channels or openings inside the first and second reinforcing beams, improving aesthetics and protection.

[0026] 2. The energy storage battery rack provided by this utility model lays water fire-fighting pipes at the bottom of the battery rack, avoiding cross-arrangement, freeing up usable space in the first and second installation areas, increasing layout density, and making the structural design more compact; it physically isolates the water fire-fighting pipes from electrical modules and battery modules, avoiding interference with heat dissipation ducts, reducing the risk of fire spread, and the space between the clamping plate and the bottom plate, and between the first cover plate and the bottom plate, has the advantages of anti-collision and dust prevention, improving the durability of the water fire-fighting pipes.

[0027] 3. The energy storage battery rack provided by this utility model adopts a segmented splicing design, which allows for maintenance by partially disassembling the water fire-fighting pipeline without the need for complete dismantling, thus facilitating maintenance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an energy storage battery rack provided in Embodiment 1 of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of an energy storage battery rack provided in Embodiment 2 of this utility model;

[0030] Figure 3 for Figure 2 Enlarged view of section A;

[0031] Figure 4 This is a front view of an energy storage battery rack provided in Embodiment 3 of this utility model;

[0032] Figure 5This is a structural schematic diagram of the water fire-fighting system provided in Embodiment 3 of this utility model;

[0033] Marked in the image:

[0034] 100. Battery rack; 110. Mounting plate; 111. First mounting area; 112. Second mounting area; 1121. Sub-mounting area; 120. Base plate; 130. Top plate; 140. First end plate; 150. Second end plate; 160. Partition plate;

[0035] 200. Water fire protection system; 210. Water fire protection interface; 220. Water fire protection pipe; 221. First straight pipe section; 222. First tee joint; 223. Second straight pipe section; 230. Connecting pipe section; 231. Straight pipe component; 232. Tee joint component; 233. Tee joint component; 240. Third straight pipe section; 241. Water sprinkler head; 250. Fixed bracket;

[0036] 300. First reinforcing beam;

[0037] 400. Second reinforcing beam;

[0038] 500. First cover plate;

[0039] 600. Plywood;

[0040] 700, Second cover plate. Detailed Implementation

[0041] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0042] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0045] Example 1:

[0046] Please see Figure 1 An energy storage battery rack is used for the installation of an energy storage system. To ensure that the energy storage system meets safety standards, a water fire suppression system 200 is installed on the battery rack. The water fire suppression system 200 is mainly used for continuous cooling after the open flame of the lithium battery is extinguished to prevent thermal runaway and reignition.

[0047] The battery rack 100 includes a mounting plate 110, a bottom plate 120 and a top plate 130 disposed opposite to each other, and a first end plate 140 and a second end plate 150 disposed opposite to each other. A set of opposite sides on the mounting plate 110 are respectively connected to the bottom plate 120 and the top plate 130, and another set of opposite sides on the mounting plate 110 are respectively connected to the first end plate 140 and the second end plate 150.

[0048] For example, the mounting plate 110 is a quadrilateral plate, including two sets of oppositely arranged sides. One set of opposite sides is connected to the bottom plate 120 and the top plate 130 respectively, and the other set of opposite sides is connected to the first end plate 140 and the second end plate 150 respectively. That is, the mounting plate 110 surrounds the bottom plate 120, the top plate 130, the first end plate 140 and the second end plate 150.

[0049] The mounting plate 110 is divided into at least one first mounting area 111 for mounting electrical modules and one second mounting area 112 for placing battery modules along the direction from the first end plate 140 to the second end plate 150. A partition 160 is provided between the first mounting area 111 and the second mounting area 112.

[0050] Understandably, the first mounting area 111 is provided with components for limiting the installation of electrical modules. Similarly, the second mounting area 112 is provided with components for limiting the installation of battery modules. Since electrical modules usually need to interact with the outside world, in this embodiment, the first mounting area 111 is designed to be close to one end of the first end plate 140, so that some electrical modules installed in the first mounting area 111 can be exposed outside the first end plate 140, which facilitates interaction with the outside world.

[0051] A first reinforcing beam 300 is provided between the first end plate 140 and the bottom plate 120, and a second reinforcing beam 400 is provided between the partition plate 160 and the bottom plate 120. The first reinforcing beam 300 and the second reinforcing beam 400 can improve the load-bearing stress of the battery rack, ensure its installation stability, and thus ensure the stability of the product in use.

[0052] Specifically, the first reinforcing beam 300 is connected between the lower end of the first end plate 140 and the upper end of the bottom plate 120, and the second reinforcing beam 400 is connected between the lower end of the partition plate 160 and the upper end of the bottom plate 120. It can be seen that the partition plate 160 is located between the first end plate 140 and the second end plate 150. In order to further improve the load-bearing stress of the battery rack, a third reinforcing beam can be provided between the lower end of the second end plate 150 and the upper end of the bottom plate 120, or multiple reinforcing beams can be evenly spaced between the lower end of the mounting plate 110 and the upper end of the bottom plate 120 along the direction from the first end plate 140 to the second end plate 150.

[0053] The water fire protection system 200 includes a water fire protection interface 210 and a water fire protection pipe 220. One end of the water fire protection pipe 220 passes through the first reinforcing beam 300 and is connected to the water fire protection interface 210. The water fire protection interface 210 is used to connect to a fire truck. The other end of the water fire protection pipe 220 passes through the second reinforcing beam 400 and is distributed in the second installation area 112.

[0054] Specifically, channels or openings are pre-embedded inside the first reinforcing beam 300 and the second reinforcing beam 400 to allow the water fire-fighting pipe 220 to pass through concealedly. One end of the water fire-fighting pipe 220 passes through the first reinforcing beam 300 and connects to the water fire-fighting interface 210. Here, the water fire-fighting interface 210 is also set on the first reinforcing beam 300, and its interface part for connecting with the fire truck is exposed on the first reinforcing beam 300. This design allows the water fire-fighting interface 210 to be quickly connected to the fire truck when needed, while also avoiding occupying internal space or setting up a separate support structure. The other end of the water fire-fighting pipe 220 passes through the second reinforcing beam 400 and is distributed in the second installation area 112. It is known that the second reinforcing beam 400 is located between the lower end of the partition plate 160 and the upper end of the base plate 120, that is, at the bottom of the battery rack. This is equivalent to placing the water fire-fighting pipe 220 at the bottom of the battery rack to avoid cross-arrangement, while freeing up the available space of the first installation area 111 and the second installation area 112, increasing the layout density, and making the structural design more compact.

[0055] In some embodiments, a first cover plate 500 is provided between the first reinforcing beam 300 and the second reinforcing beam 400 to cover the water fire-fighting pipe 220. By covering the water fire-fighting pipe 220 with the first cover plate 500, the water fire-fighting pipe 220 is concealed, improving aesthetics and protection. At the same time, the water fire-fighting pipe 220 is physically isolated from the electrical module to avoid adverse effects caused by cross-arrangement.

[0056] During installation, one end of the water fire-fighting pipe 220 is placed in the first reinforcing beam 300 and connected to the water fire-fighting interface 210. The other end of the water fire-fighting pipe 220 passes through the second reinforcing beam 400 and is distributed in the second installation area 112. Then, the first cover plate 500 is placed between the first reinforcing beam 300 and the second reinforcing beam 400 to cover and isolate the water fire-fighting pipe 220.

[0057] In some embodiments, rock wool is filled between the first cover plate 500 and the bottom plate 120, and the rock wool can be used to provide thermal insulation.

[0058] Energy storage batteries continuously generate heat during charging and discharging, especially during high-power charging and discharging. If heat accumulates or local overheating occurs, it may lead to battery performance degradation or even thermal runaway. Filling the space between the first cover plate 500 and the bottom plate 120 with rock wool can effectively block heat transfer through efficient insulation. In addition, in outdoor environments or environments with large temperature differences, rock wool can serve as an insulation layer for the battery compartment, reducing the impact of the external ambient temperature on the battery's operating temperature, helping the battery maintain its optimal operating range, and improving energy storage efficiency and stability.

[0059] Example 2:

[0060] This embodiment makes further structural optimizations based on Embodiment 1. Please refer to... Figure 1 Based on the above Figure 2 and Figure 3 .

[0061] In this embodiment, the water fire-fighting pipeline 220 includes a first straight pipe section 221, a first double-connector 222, and a second straight pipe section 223. The two ends of the first double-connector 222 are respectively connected to the first straight pipe section 221 and the second straight pipe section 223. The first straight pipe section 221 is perpendicular to the second straight pipe section 223. The first straight pipe section 221 is located in the first installation area 111, and the second straight pipe section 223 is located in the second installation area 112.

[0062] The first straight pipe section 221 is installed in the first installation area 111 for easy connection to the water fire protection interface 210. The second straight pipe section 223 is located in the second installation area 112 to facilitate continuous cooling of the battery module in the second installation area 112 when needed. In this embodiment, the connection between the first straight pipe section 221 and the second straight pipe section 223 is established by means of the first double-connector 222, so that the first straight pipe section 221 and the second straight pipe section 223 are installed in different directions. For example, the first straight pipe section 221 is distributed laterally, and the second straight pipe section 223 is distributed longitudinally.

[0063] In some embodiments, a clamping plate 600 is provided between the second mounting area 112 and the base plate 120, and the clamping plate 600 has a clearance position for allowing the second straight pipe portion 223 to pass through.

[0064] Furthermore, a second cover plate 700 is provided at the clearance position to cover the first double-connector 222, thereby achieving a concealed design of the first double-connector 222, improving aesthetics and protection, while physically isolating the water fire pipe 220 from the battery module to avoid adverse effects caused by cross-arrangement.

[0065] During installation, one end of the first straight pipe section 221 is placed in the first reinforcing beam 300 and connected to the water fire interface 210. The other end of the first straight pipe section 221 passes through the second reinforcing beam 400 and is connected to the first double-connector 222. The other end of the first double-connector 222 is connected to the second straight pipe section 223. Then, the first cover plate 500 is placed between the first reinforcing beam 300 and the second reinforcing beam 400 to cover and isolate the first straight pipe section 221. The second cover plate 700 is placed at the clearance position to cover the first double-connector 222.

[0066] In some embodiments, rock wool is filled between the sandwich panel 600 and the base plate 120 to provide thermal insulation.

[0067] Energy storage batteries continuously generate heat during charging and discharging, especially during high-power charging and discharging. If heat accumulates or localized overheating occurs, it may lead to battery performance degradation or even thermal runaway. Filling the space between the 600-inch interlayer plate and the 120-inch base plate with rock wool can effectively block heat transfer through efficient insulation. In addition, in outdoor environments or environments with large temperature differences, rock wool can serve as an insulation layer for the battery compartment, reducing the impact of ambient temperature on the battery's operating temperature, helping the battery maintain its optimal operating range, and improving energy storage efficiency and stability.

[0068] This embodiment provides an energy storage battery rack that, by setting a first cover plate 500, a second cover plate 700, and a clamping plate 600, physically isolates the water fire-fighting pipe 220 from the electrical module and battery module, avoiding interference with the heat dissipation duct and reducing the risk of fire spread. Furthermore, the space between the clamping plate 600 and the base plate 120, and between the first cover plate 500 and the base plate 120, has the advantages of anti-collision and dustproof, improving the durability of the water fire-fighting pipe 220.

[0069] Example 3:

[0070] This embodiment makes further structural optimizations based on embodiment 2. Please refer to... Figures 1-3 Based on the above Figure 4 and Figure 5 .

[0071] In this embodiment, the second installation area 112 is divided into several sub-installation areas 1121 along the direction from the first end plate 140 to the second end plate 150; the water fire-fighting pipe 220 also includes a connecting pipe portion 230 and a third straight pipe portion 240 distributed in the several sub-installation areas 1121. The third straight pipe portion 240 is connected to the second straight pipe portion 223 through the connecting pipe portion 230; the third straight pipe portion 240 is provided with several water spray nozzles 241, which facilitates continuous cooling of the battery module after the open flame is extinguished, and prevents thermal runaway reignition.

[0072] For example, the second installation area 112 is divided into 6 sub-installation areas 1121. Each of the 6 sub-installation areas 1121 is provided with a limiting structure for limiting the installation of the battery module. The third straight pipe section 240 extends along the direction from the first end plate 140 to the second end plate 150 and is distributed in each sub-installation area 1121. In some scenarios, the number of water spray nozzles 241 on the third straight pipe section 240 can be set to be the same as the number of sub-installation areas 1121, so that each water spray nozzle 241 can perform spraying operation corresponding to each sub-installation area 1121.

[0073] It should be noted that this embodiment does not limit the number of sub-installation areas 1121 and water spray nozzles 241, which can be adjusted according to actual needs. Furthermore, it does not limit the correspondence between sub-installation areas 1121 and water spray nozzles 241, which can be one sub-installation area 1121 corresponding to two water spray nozzles 241.

[0074] In some embodiments, the water fire-fighting pipeline 220 also includes a plurality of fixed supports 250; the plurality of fixed supports 250 are used to fix the third straight pipe section 240 to the mounting plate 110 or the top plate 130, thereby improving the installation stability of the third straight pipe section 240 and improving the overall stability.

[0075] Since the third straight pipe section 240 has a certain length, in order to improve the installation stability of the third straight pipe section 240, a fixing bracket 250 is provided to fix the third straight pipe section 240 to the mounting plate 110 or the top plate 130.

[0076] In some embodiments, the connecting pipe section 230 includes at least a straight pipe component 231, a two-way connector component 232, and a three-way connector component 233, enabling flexible layout of the water fire-fighting pipe 220.

[0077] For example, the connecting pipe section 230 includes four straight pipe components 231, four double-connector components 232, and one tee connector component 233. Adjacent straight pipe components 231 are connected by double-connector components 232. A tee connector component 233 is provided at the straight pipe component 231 connected to the third straight pipe section 240, so that the water flow can quickly reach both ends of the third straight pipe section 240 after passing through the tee connector component 233, thus achieving a rapid spraying effect.

[0078] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. An energy storage battery rack characterized by, A water fire suppression system (200) is installed on the battery rack (100). The battery rack (100) includes a mounting plate (110), a bottom plate (120) and a top plate (130) arranged opposite to each other, and a first end plate (140) and a second end plate (150) arranged opposite to each other. A set of opposite sides on the mounting plate (110) are respectively connected to the bottom plate (120) and the top plate (130), and another set of opposite sides on the mounting plate (110) are respectively connected to the first end plate (140) and the second end plate (150). The mounting plate (110) is divided into at least one first mounting area (111) for mounting electrical modules and one second mounting area (112) for placing battery modules along the direction from the first end plate (140) to the second end plate (150). A partition (160) is provided between the first mounting area (111) and the second mounting area (112). A first reinforcing beam (300) is provided between the first end plate (140) and the bottom plate (120), and a second reinforcing beam (400) is provided between the partition plate (160) and the bottom plate (120). The water fire protection system (200) includes a water fire protection interface (210) and a water fire protection pipe (220). One end of the water fire protection pipe (220) passes through the first reinforcing beam (300) and is connected to the water fire protection interface (210). The water fire protection interface (210) is used to connect to a fire truck. The other end of the water fire protection pipe (220) passes through the second reinforcing beam (400) and is distributed in the second installation area (112).

2. The energy storage battery rack of claim 1, wherein, A first cover plate (500) for covering the water fire-fighting pipe (220) is provided between the first reinforcing beam (300) and the second reinforcing beam (400).

3. The energy storage battery rack of claim 2, wherein, Rock wool is filled between the first cover plate (500) and the bottom plate (120).

4. The energy storage battery rack of claim 1, wherein, The water fire-fighting pipeline (220) includes a first straight pipe section (221), a first double-connector (222), and a second straight pipe section (223). The two ends of the first double-connector (222) are respectively connected to the first straight pipe section (221) and the second straight pipe section (223). The first straight pipe section (221) is perpendicular to the second straight pipe section (223). The first straight pipe section (221) is located in the first installation area (111), and the second straight pipe section (223) is located in the second installation area (112).

5. The energy storage battery rack of claim 4, wherein, A clamping plate (600) is provided between the second installation area (112) and the base plate (120), and the clamping plate (600) has a clearance position for avoiding the passage of the second straight pipe section (223).

6. The energy storage battery rack of claim 5, wherein, A second cover plate (700) is provided at the clearance position to cover the first double-through connector (222).

7. The energy storage battery rack of claim 5, wherein, Rock wool is filled between the clamping plate (600) and the base plate (120).

8. The energy storage battery rack of claim 4, wherein, The second mounting area (112) is divided into several sub-mounting areas (1121) along the direction from the first end plate (140) to the second end plate (150). The water fire-fighting pipeline (220) also includes a connecting pipeline section (230) and a third straight pipe section (240) distributed in several of the sub-installation areas (1121), wherein the third straight pipe section (240) is connected to the second straight pipe section (223) through the connecting pipeline section (230). The third straight pipe section (240) is provided with several water spray nozzles (241).

9. The energy storage battery rack according to claim 8, characterized in that, The water fire-fighting pipeline (220) also includes several fixed supports (250); Several of the aforementioned fixing brackets (250) are used to fix the third straight tube portion (240) to the mounting plate (110) or the top plate (130).

10. The energy storage battery rack of claim 8, wherein, The connecting pipe section (230) includes at least a straight pipe component (231), a two-way connector component (232), and a three-way connector component (233).

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