A high-rack spraying system and a construction method thereof

Abstract

The present application relates to the field of building construction, particularly to a high shelf internal spraying system and a construction method thereof, comprising a design module, a pre-processing module, a support pre-assembly module and a spraying pipeline installation module; a floor support is connected with the ground according to the characteristics of the shelf and the transportation track of goods, a spraying main pipe is installed overhead with the ground through the floor support, a vertical pipe support and a branch pipe support are fixed on the 2-side shelf column structure, the vertical pipe support is connected with a spraying vertical pipe, the branch pipe support is connected with a spraying branch pipe, the spraying main pipe introduces a water source, the spraying vertical pipe is vertically connected with the spraying main pipe, the water source is introduced to each layer of the shelf, the spraying branch pipe of each layer is horizontally connected with the spraying vertical pipe, the water source is introduced to the top of each grid of each layer of the shelf, a fire-fighting nozzle connected with the spraying branch pipe is arranged above each grid of the shelf, and the fire-fighting nozzle is opened after reaching a preset temperature.

Description

Technical Field

[0001] This invention relates to the field of building construction, and in particular to a spray system for tall shelving and its construction method. Background Technology

[0002] In recent years, with the rapid development of my country's social economy and urban construction, cargo storage methods have become increasingly efficient and advanced. To meet the high efficiency requirements of modern cargo storage, large-scale intelligent storage warehouses often adopt tall, integrated intelligent storage racks, which offer particularly significant cargo storage benefits. These warehouses feature a compact rack layout, with most single-row racks reaching heights of 22 to 35 meters and lengths of 95 to 142 meters. To ensure the fire safety of goods within these tall racks, a sprinkler system is installed above each compartment to guarantee cargo safety and effectively prevent the spread of fire.

[0003] Traditional rack sprinkler systems require the racks to be installed before construction can begin. However, the racks themselves obstruct the flow of traffic, limiting the use of climbing and transport machinery. Therefore, traditional rack sprinkler installation requires manual labor, resulting in high labor demands, long working hours, and significant safety risks. This leads to extremely low construction efficiency for fire sprinkler systems within the racks. Furthermore, the main sprinkler pipes for a single row of racks typically use one or two sets of DN150 galvanized steel pipes. To avoid impacting the transport and storage of goods, current technology places these main sprinkler pipes at the top of the racks, achieving an installation height of 24 to 37 meters. These main sprinkler pipes are suspended from the roof steel structure. Due to the large number and weight of the main pipes, the load on the roof structure is substantial, and the extremely high installation height makes pipe construction extremely difficult, leading to challenges in subsequent inspection and maintenance. Summary of the Invention

[0004] The purpose of this invention is to address the problems of traditional rack-mounted sprinkler system installation, which requires manual handling, involves a large workforce, long working hours, and poses significant safety risks. This results in extremely low construction efficiency for the internal fire sprinkler system. Furthermore, the main sprinkler pipes are suspended from the roof steel structure, placing a heavy load on the roof structure due to the large number and weight of the pipes. The excessive pipe installation height also makes construction extremely difficult and subsequent maintenance challenging. This invention provides a sprinkler system and its construction method for tall racks, where the main sprinkler pipes are installed suspended above the ground within the rack. Using detailed installation drawings provided by the rack manufacturer, the system avoids obstructing transport routes and storage space. After confirmation from multiple parties, this solution does not affect the rack and storage functions and meets fire safety regulations.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] Firstly, a spray system for tall shelving includes:

[0007] Design module: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe, a sprinkler riser, and a sprinkler branch pipe. The support includes a ground support, a riser support, and a branch pipe support. Determine the number of sections and the length of each section of the sprinkler pipe, as well as the installation positions of the sprinkler pipe, the support, and the fire sprinkler head, based on the characteristics of the shelving and the cargo transportation trajectory.

[0008] Pre-processing module: Completes construction according to the number of sections and length of each section of the spray pipe;

[0009] Pre-assembly module for supports: During the assembly of the rack on the ground, the upright supports and the branch supports are installed on the rack structure according to the installation positions determined by the design module. The support installation is completed before each rack section is hoisted into place.

[0010] Sprinkler pipe installation module: The main sprinkler pipe and the ground support are installed after the rack is hoisted into place; the sprinkler riser is installed after the rack is hoisted into place and finely adjusted and tightened; the sprinkler branch pipe is installed after the sprinkler riser is installed.

[0011] The floor-mounted support is connected to the ground according to the characteristics of the shelving and the cargo transportation trajectory. The main sprinkler pipe is installed above the ground through the floor-mounted support. The upright support and branch support are fixed on the upright structure of the shelving on both sides. The upright support is connected to the sprinkler upright, and the branch support is connected to the sprinkler branch pipe. The main sprinkler pipe introduces a water source. The sprinkler upright is vertically connected to the main sprinkler pipe, leading the water source to each shelf. The sprinkler branch pipe on each shelf is horizontally connected to the sprinkler upright, leading the water source to each shelf cell on each shelf. A fire sprinkler head connected to the sprinkler branch pipe is installed above each shelf cell. The fire sprinkler head turns on after reaching a preset temperature.

[0012] Preferably, the upright support and the branch support are fixed to the upright structure of the two-sided rack using angle steel brackets and connected to the spray upright and the spray branch. The length and number of each section of the spray upright inside the rack are determined according to the number of rack layers. The spray branch is installed at the bottom of the top structural beam of each rack layer. The branch support is installed at the middle elevation of each rack layer. The plane of the branch support is within the width of the rack upright. The support form meets the structural stress requirements of the rack and does not collide with the rack structure or the transportation and storage of goods.

[0013] Preferably, the sprinkler pipe installation module further includes a sprinkler main pipe installation submodule, a sprinkler riser installation submodule, and a shelf sprinkler branch pipe installation submodule;

[0014] The main sprinkler pipe installation submodule reserves the interface for the sprinkler riser according to the design module. The main sprinkler pipe is prefabricated in the processing plant, transported to the site, and installed on the ground. Specifically, the ground support is installed by a group of 2 people and the main sprinkler pipe is installed by a group of 4 people.

[0015] The sprinkler riser installation submodule is installed after the sprinkler main pipe installation submodule has installed the sprinkler main pipe. The sprinkler riser is installed from bottom to top. Specifically, pulleys are installed on the columns or roof steel structure at the top of the sprinkler riser, and traction ropes are hung on them. An electric hoist is installed on the ground. After the sprinkler riser is pre-assembled in the processing yard, it is transported to the site and lifted to the installation position by the electric hoist along the column. The sprinkler riser interface is connected and fixed to the riser bracket on the shelf. Then the installation of the next section of the sprinkler riser begins until the installation is completed.

[0016] The sprinkler branch pipe installation submodule is performed after the sprinkler riser installation submodule has installed the sprinkler riser. The sprinkler branch pipe is installed from top to bottom. Specifically, pulleys are installed on the column or roof steel structure at the top of the sprinkler riser, and a traction rope is attached. An electric hoist is installed on the ground to pull the pre-assembled sprinkler branch pipe to the installation point. Before pulling, the fire sprinkler head and heat collection cover are installed. Then, the electric hoist is used to lift the sprinkler branch pipe to the installation position along the column. The sprinkler branch pipe interface is connected and fixed to the branch pipe bracket on the shelf. Then, the installation of the next section of the sprinkler branch pipe begins.

[0017] Preferably, the ground support includes ground support legs and multiple support rods. The multiple support rods are horizontally connected to the ground support legs. One main sprinkler pipe is placed on the horizontal surface of one support rod. The support rod has pipe clamp holes on both sides of the placement position of the main sprinkler pipe. Fixing clamps or threads are used to bind the main sprinkler pipe to the support rod through the pipe clamp holes. The multiple support rods are staggered, and the overlapping part of any two support rods in the vertical direction does not exceed half the length of the support rod.

[0018] Preferably, the riser support and the branch support include a shelf support leg and a support rod. The support rod is horizontally connected to the shelf support leg. The shelf support leg is provided with bolt holes, through which the riser support and the branch support are connected to the shelf. The spray riser is placed vertically and contacts the side of the support rod. The support rod is provided with pipe clamp holes on both sides of the horizontal direction where the spray riser is placed. Fixing clamps or threads are used to bind the spray riser to the support rod through the pipe clamp holes. The spray branch is placed horizontally on the top surface of the support rod. The support rod is provided with pipe clamp holes on both sides of the horizontal direction where the spray branch is placed. Fixing clamps or threads are used to bind the spray branch to the support rod through the pipe clamp holes.

[0019] Preferably, the heat collection hood is disposed between the fire sprinkler head and the sprinkler branch pipe. The fire sprinkler head is also connected to a water collection hood, which is disposed below the fire sprinkler head. The water collection hood can reflect the water sprayed from the fire sprinkler head onto the heat collection hood, and the heat collection hood then sprays the water outwards. The heat collection hood is connected to the sprinkler branch pipe by several first connecting ropes. When one of the first connecting ropes breaks, the heat collection hood can be connected to the sprinkler branch pipe by the other first connecting ropes. When multiple or all of the first connecting ropes break, the heat collection hood can be connected to the sprinkler branch pipe by second connecting ropes. The first connecting ropes break before reaching the preset temperature reached by the fire sprinkler head. The second connecting ropes are made of flame-retardant material.

[0020] Preferably, each shelf has two fire sprinklers, including a first sprinkler and a second sprinkler. The preset temperature of the first sprinkler is higher than that of the second sprinkler, and the water output of the first sprinkler is greater than that of the second sprinkler. The water output of the second sprinkler is in the form of a mist.

[0021] Preferably, each fire sprinkler is assigned a unique number, and when one of the fire sprinklers is turned on, the preset temperature of all adjacent fire sprinklers in the spatial direction is controlled to decrease.

[0022] Preferably, it also includes a periodic detection module, which includes a detection nozzle and a heating module. The length of the spray branch pipe at the end away from the spray riser extends beyond the shelf, and a detection nozzle and the heating module are installed in the part that extends beyond the shelf.

[0023] The heating module heats the fire sprinkler head periodically according to a preset time. The detection sprinkler head is turned on when it reaches the preset temperature to detect whether water is flowing out and the water pressure data. After cooling down, the detection sprinkler head is turned off and the detection data is uploaded.

[0024] Secondly, a construction method for a spray system inside a tall shelving unit includes the following steps:

[0025] Step S1: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe, sprinkler risers, and sprinkler branch pipes. The support includes floor supports, riser supports, and branch pipe supports. Based on the characteristics of the shelving and the cargo transport trajectory, determine the number of sprinkler pipe segments and the length of each segment, as well as the installation positions of the sprinkler pipes, supports, and fire sprinklers. The floor supports are connected to the ground according to the shelving characteristics and cargo transport trajectory. The main sprinkler pipe is installed above ground via the floor supports. The riser supports... The frame and branch pipe supports are fixed on the upright structure of the two side shelves. The upright pipe supports are connected to the sprinkler upright pipes, and the branch pipe supports are connected to the sprinkler branch pipes. The sprinkler main pipe introduces water source. The sprinkler upright pipes are vertically connected to the sprinkler main pipes to lead the water source to each shelf. The sprinkler branch pipes on each shelf are horizontally connected to the sprinkler upright pipes to lead the water source to the top of each shelf on each shelf. A fire sprinkler head connected to the sprinkler branch pipe is installed on the top of each shelf. The fire sprinkler head is turned on after reaching the preset temperature.

[0026] Step S2: Complete the construction according to the number of sections and the length of each section of the sprinkler pipe;

[0027] Step S3: During the assembly of the rack on the ground, install the upright support and the branch support onto the rack structure according to the installation positions determined in Step S1. Complete the support installation before each section of the rack is hoisted into place.

[0028] Step S4: The main spray pipe and the ground support are installed after the rack is hoisted into place. The spray riser is installed after the rack is hoisted into place and finely adjusted and tightened. The spray branch pipe is installed after the spray riser is installed.

[0029] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0030] 1. After optimizing the layout of the supports and sprinkler pipes, a fully prefabricated and pre-assembled construction process is adopted, followed by transportation to the site for installation. The high pre-assembly rate greatly improves the overall construction quality and efficiency of the rack sprinkler system. The rack construction adopts a ground-based segmented assembly and overall hoisting method. Through detailed design, the supports are installed before the ground racks are hoisted into place, reducing personnel working at heights and lowering construction efficiency and safety risks. Furthermore, all supports and pipes are prefabricated through detailed design, allowing for precise control of material cutting, reducing material waste, increasing the utilization rate of miscellaneous materials, saving resources, and reducing on-site processing labor, noise, and solid waste pollution. The main sprinkler pipes are optimized from being installed at the bottom of the racks instead of the top or roof, greatly ensuring the safety of the main pipes. Construction is extremely convenient and fast, operation and maintenance are convenient, and the need for machinery is reduced.

[0031] 2. The support frame uses angle steel brackets fixed to the uprights of the two side shelves. Sprayer branch pipes are installed at the bottom of the top structural beams of each shelf level. The support frame is installed at the mid-level of each shelf's goods, with its plane within the width of the shelf uprights. The support frame design meets the structural load-bearing requirements of the shelf and does not collide with the shelf structure or the transport and storage of goods. Considering the hole conditions in the uprights and the need to adjust for errors during later pipe installation, the bolt holes connecting the support frame to the shelf are lengthened. The sprayer branch pipes inside the shelf are installed horizontally, with spray nozzles installed at the top of each shelf's goods. The horizontal branch pipes are installed within the height range of the horizontal structural components of each shelf level, and the top of the largest diameter horizontal branch pipe does not exceed the horizontal structural components of the shelf. The support frame uses angle steel brackets fixed to the uprights of the two side shelves. For spray nozzle branch pipes that need to extend to the center of the goods, the support frame is fixed to the horizontal structural components of the shelf using stainless steel cable ties. Considering the need to adjust for errors during later pipe installation, the bolt holes connecting the support frame to the shelf are lengthened.

[0032] 3. The floor support is equipped with multiple support rods, and each support rod can hold one of the main spray pipes. A group of shelves can be divided into areas using multiple main spray pipes. For example, the spray pipes of the high-area shelves are connected to one main spray pipe, and the spray pipes of the low-area shelves are connected to another main spray pipe. At the same time, if the main spray pipes are installed in the same vertical direction, the spray pipes connected to the lower-level main spray pipes need to bend around the upper-level main spray pipes. Therefore, in this embodiment, the multiple support rods are staggered so that the spray pipes connected to the lower-level main spray pipes can also be installed vertically, avoiding the large and unstable water pressure at the bend of the spray pipe caused by bending installation. At the same time, the staggered installation of the support rods requires more matching ground support legs, making the connection between the entire floor support and the ground more stable.

[0033] 4. A water collection hood is also installed below the fire sprinkler head. After the water is collected by the fire sprinkler head, it sprays the water outwards towards the heat collection hood. The heat collection hood can disperse the water flow to all sides of the hood. The heat collection hood plays a role in heat collection before the fire sprinkler head sprays water. After the fire sprinkler head sprays water, the heat collection function is no longer needed. At this time, it also acts as a water flow dispersion plate, increasing the spray surface and the fire extinguishing range. Furthermore, when a fire occurs, the ignition point, the size of the fire, or the direction of fire development is usually not directly below the fire sprinkler head. In this case, if more water can be sprayed towards the ignition point, the size of the fire, or the direction of fire development, the fire extinguishing effect will be better. Therefore, in this embodiment, the heat collection hood is connected to the sprinkler branch pipe through the first connecting rope. The first connecting rope has a low melting point and breaks when a predetermined temperature is reached. If the temperature of the fire sprinkler is lower than the preset temperature of the fire extinguisher, then when a fire occurs, the first connecting rope closest to the fire will break first before reaching the preset temperature of the fire sprinkler, causing the heat collection plate to tilt in the direction of the fire. At this time, when the fire sprinkler reaches the preset temperature and starts spraying water, more water will be sprayed in the tilt direction of the heat collection plate, so that the fire point, the larger fire, or the direction of fire development will receive more fire extinguishing resources. When the fire is large, when most or all of the first connecting ropes break, the heat collection cover is then connected to the sprinkler branch pipe through the second connecting rope, and the tilt angle of the heat collection plate gradually decreases. When the fire is large and the fire spreads over a large area, the water flow usually no longer needs to tilt in a certain direction, and can evenly extinguish the fire over a large area. The second connecting rope is made of flame-retardant material, so that the heat collection cover can still disperse the water flow after the first connecting rope breaks. Furthermore, the edge of the heat collection hood is provided with baffles. When no external force is applied, the baffles remain vertically downward due to their own weight. The baffles can prevent the water diverted through the heat collection plate from being too wide, which could lead to poor fire extinguishing effect. More importantly, when part of the first connecting rope breaks and the heat collection plate tilts, the end of the heat collection plate away from the fire will rise. The water flow in this area will get an initial direction of oblique upward, and the water flow will spray a longer distance in the horizontal direction, even beyond the fire range. Therefore, with the setting of the baffles, when the water is sprayed, it is blocked by the baffles and sprays too much in the vertical direction, avoiding the water flow from spraying too far in the horizontal direction and thus failing to play a fire extinguishing role.

[0034] 5. Each shelf is equipped with a first sprinkler head and a second sprinkler head. The second sprinkler head at the shelf where a fire occurs has an alarm function. It alarms and sprays water mist to cool the area in the early stages of a fire or when the temperature is high, thus providing initial temperature control. The alarm notifies staff to check. If the fire is extinguished or the temperature drops, the first sprinkler head does not need to be turned on again to avoid damage to the items on the shelf from the large water flow. However, if the fire develops and the temperature continues to rise, the first sprinkler head will be turned on again. Simultaneously, if the fire spreads to nearby shelves, the second sprinkler head above those nearby shelves will ignite earlier to spray water, pre-cooling their area and reducing the spread of the fire. Alternatively, through a control system... The system assigns a unique number to each fire sprinkler. When a fire breaks out and one of the fire sprinklers begins spraying water, the control system sets the preset temperature of adjacent fire sprinklers in the up, down, left, right, front, and back directions as the center. When the fire starts to spread in a certain direction, the temperature of the fire sprinklers in that direction rises, and they begin spraying water earlier than the initial preset temperature to try to control the fire area at its initial position. When a fire sprinkler in that direction starts spraying water earlier than the initial preset temperature, the control system sets the preset temperature of adjacent fire sprinklers in that direction as the center and also lowers the preset temperature of the fire sprinklers in that direction through the control system.

[0035] 6. A periodic detection module is installed. Like the fire sprinkler head, the detection sprinkler head activates after reaching a preset temperature. It also records whether water is flowing from the sprinkler head and the water pressure data. Since the sprinkler system is a fire safety measure and may not be used for many years, various factors may cause the sprinkler pipes to run dry or have insufficient water pressure. This could result in insufficient water for fire suppression when water is urgently needed. Therefore, a detection sprinkler head and a heating module are installed on the portion of the sprinkler branch pipe extending beyond the shelf from the end of the sprinkler riser. The heating module periodically heats the fire sprinkler head according to a preset time. The detection sprinkler head activates when it reaches the preset temperature to detect whether water is flowing and the water pressure data. It deactivates after cooling down. The system records the spray nozzles and uploads the detection data. For the detection nozzles located further away from the sprinkler riser and extending beyond the shelf, the main sprinkler pipe, the lower-level sprinkler riser, and the same-level sprinkler branch pipe must be unobstructed for water to flow. Therefore, if the highest detection nozzle is flowing normally, it indicates that the main sprinkler pipe, sprinkler riser, and the highest-level sprinkler branch pipe within this shelf are unobstructed. The temperature trigger switches of each detection nozzle on each level are checked for proper function. Water pressure data is uploaded to the system to check if the water pressure on each level is sufficient. Furthermore, the water pressure data from the highest to the lowest level should gradually increase. If the system shows that the water pressure data for each level does not increase gradually, it needs to be checked. Additionally, the detection nozzles are numbered. When a detection nozzle sprays water, the preset temperature of the adjacent fire sprinkler head is checked to see if it decreases, verifying that the system is operating normally. Attached Figure Description

[0036] Figure 1 This is a flowchart illustrating a spray system for tall shelving and its construction method.

[0037] Figure 2 This is a structural diagram of the shelving, main spray pipes, and spray risers.

[0038] Figure 3 This is a structural diagram of the shelving and spray pipes;

[0039] Figure 4 This is a schematic diagram of one type of floor stand structure;

[0040] Figure 5 This is a schematic diagram of another structure for a floor stand;

[0041] Figure 6 This is a schematic diagram of the side structure of the riser support;

[0042] Figure 7 This is a side sectional view of the branch pipe support;

[0043] Figure 8 This is a schematic diagram of the structure of the heat collection cover and the water collection cover.

[0044] Markings in the diagram: 1-Shelf, 21-Main sprinkler pipe, 22-Sprinkler riser, 23-Sprinkler branch pipe, 31-Ground support, 32-Riser support, 33-Branch support, 34-Support rod, 35-Shelf support leg, 36-Ground support leg, 41-Pipe clamp hole, 42-Clamp, 5-Fire sprinkler head, 6-Heat collector cover, 7-Water collection cover, 81-First connecting rope, 82-Second connecting rope, 9-Baffle. Detailed Implementation

[0045] The present invention will now be described in detail with reference to the accompanying drawings.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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.

[0047] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0048] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this invention, it should be noted that the terms "upper," "lower," 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, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] Firstly, a spray system inside a tall shelving unit, see [reference] Figure 1 As shown, it includes:

[0052] Design module: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe 21, a sprinkler riser 22 and a sprinkler branch pipe 23. The support includes a ground support 31, a riser support 32 and a branch support 33. Determine the number of segments and the length of each segment of the sprinkler pipe, as well as the installation positions of the sprinkler pipe, the support and the fire sprinkler head 5, based on the characteristics of the shelf 1 and the cargo transportation trajectory.

[0053] Pre-processing module: Completes construction according to the number of sections and length of each section of the spray pipe;

[0054] Pre-assembly module of the support frame: When assembling the rack 1 on the ground, the upright support 32 and the branch support 33 are installed on the rack 1 structure according to the installation position determined by the design module. The support frame installation is completed before each section of rack 1 is hoisted into place.

[0055] Sprinkler pipe installation module: The main sprinkler pipe 21 and the ground support 31 are installed after the rack 1 is hoisted into place. The sprinkler riser 22 is installed after the rack 1 is hoisted into place and finely adjusted and tightened. The sprinkler branch pipe 23 is installed after the sprinkler riser 22 is installed.

[0056] The floor support 31 is connected to the ground according to the characteristics of the shelf 1 and the cargo transportation trajectory. The main sprinkler pipe 21 is installed above the ground through the floor support 31. The upright pipe support 32 and the branch pipe support 33 are fixed on the upright structure of the two side shelves 1. The upright pipe support 32 is connected to the sprinkler upright pipe 22, and the branch pipe support 33 is connected to the sprinkler branch pipe 23. The main sprinkler pipe 21 introduces a water source. The sprinkler upright pipe 22 is vertically connected to the main sprinkler pipe 21 to lead the water source to each shelf 1. The sprinkler branch pipe 23 of each shelf is horizontally connected to the sprinkler upright pipe 22 to lead the water source to each shelf 1 on each shelf. A fire sprinkler head 5 connected to the sprinkler branch pipe 23 is installed above each shelf 1. The fire sprinkler head 5 is turned on after reaching the preset temperature.

[0057] It should be noted that the fire sprinkler head 5 is a type of sprinkler head that automatically activates under heat within a predetermined temperature range, or is activated by control equipment according to a fire signal, and sprays water to extinguish fires according to the designed spray pattern and flow rate. It is part of the sprinkler system. The sprinkler pipe is the sprinkler water system installed inside the rack 1. Before the installation of the sprinkler system on rack 1, the product form of rack 1 and the design drawings of the sprinkler system have been determined. First, the design drawings and relevant specifications should be thoroughly understood, and the scope and content of the detailed design should be analyzed in conjunction with the site conditions. The detailed design of the sprinkler system on rack 1 mainly involves refining and clarifying the installation details of the sprinkler system based on the characteristics of rack 1, the location of the sprinkler pipe and sprinkler head. The main sprinkler pipe 21 of rack 1 for a single row of rack 1 uses one or more sets of DN150 galvanized steel pipes. In the conventional scheme, to avoid affecting the transportation and storage of rack 1 and goods, the main sprinkler pipe 21 of rack 1 is arranged at the top of rack 1, and the installation height is usually more than 24m. The main sprinkler pipe 21 of shelf 1 should be suspended and installed on the roof steel structure. Due to the large number and weight of the main pipes, the roof structure is under heavy load, and the pipe installation height is extremely high, making construction very difficult and subsequent maintenance challenging. Based on these characteristics, and considering the structural form of shelf 1 and the material transport trajectory, the main sprinkler pipe 21 of shelf 1 is adjusted to be installed close to the ground inside shelf 1, using the aforementioned floor supports 31 for elevated installation. This is done according to the installation details provided by the shelf 1 manufacturer, avoiding transport routes and storage space. After confirmation from multiple parties, it is determined that this does not affect the shelf 1 or its storage function and meets fire safety regulations. The sprinkler riser 22 and the sprinkler branch pipes 23 are mainly designed based on the structural form of shelf 1, refining the installation of the sprinkler pipes and supports, and taking into account the segmented assembly and hoisting characteristics of shelf 1. Through the detailed analysis of the spray riser 22 and the spray branch pipe 23 in the early stage, several types of spray pipe installation were determined, and detailed drawings of the installation of each type of pipe and the support for the pipes installed on the rack 1 were determined; see [link to relevant documentation]. Figure 2 and Figure 3 As shown, BIM tools were used to create a model based on the detailed design content. 3D visualization technology was used to compare and analyze the original and detailed designs. After confirmation of the design by the designer, the client, and the racking manufacturer, the detailed drawings of the main pipelines were finalized. For the risers inside racking 1, the length of each straight pipe section needed to be determined based on the number of racking 1 layers. Combined with the standard pipe entry length, the pipe cutting length was determined to avoid excessive waste from short pipes and to reduce the number of joints in the straight pipe sections.

[0058] In this embodiment, the supports and spray pipes are optimized and prefabricated, and then transported to the site for installation. This high prefabrication rate significantly improves the overall construction quality and efficiency of the rack 1 spray system. The rack 1 is constructed using a ground-level segmented assembly and overall hoisting method. Through detailed design, the supports are installed before the rack 1 is hoisted into place, reducing high-altitude work and lowering construction efficiency and safety risks. Furthermore, all supports and pipes are prefabricated through detailed design, allowing for precise control of material cutting, reducing material waste, increasing the utilization rate of miscellaneous materials, saving resources, and reducing on-site processing labor, noise, and solid waste pollution. The main spray pipe 21 is optimized from the top or roof of rack 1 to be installed at the bottom inside rack 1, greatly ensuring the safety of the main pipe. Construction is extremely convenient and fast, operation and maintenance are easy, and the need for machinery is reduced. (See [link]). Figure 5 As shown.

[0059] As a preferred technical solution of this application, the upright support 32 and the branch support 33 are fixed to the upright structure of the two side shelves 1 using angle steel brackets, and are connected to the spray upright 22 and the spray branch 23. The length and number of each segment of the spray upright 22 inside the shelf 1 are determined according to the number of layers of the shelf 1. The spray branch 23 is set at the bottom of the top structural beam of each shelf 1. The branch support 33 is installed at the middle elevation of each shelf 1. The plane of the branch support 33 is within the width range of the upright of the shelf 1. The form of the support meets the structural stress requirements of the shelf 1 and has no collision or conflict with the structure of the shelf 1 and the transportation and storage of goods.

[0060] In this embodiment, the support frame is fixed to the upright structure of the two side shelves 1 using angle steel brackets. A spray branch pipe 23 is installed at the bottom of the top structural beam of each shelf 1. The support frame is installed at the middle elevation of each layer of goods, and its plane is within the width of the shelf 1 uprights. The support frame design meets the structural load-bearing requirements of the shelf 1 and does not collide with the shelf 1 structure or the transport and storage of goods. Simultaneously, considering the hole conditions of the uprights and shelf 1, and taking into account the error control during later pipe installation, the bolt holes connecting the support frame and shelf 1 are lengthened. The upright support 32 is as follows... Figure 6 As shown; the spray branch pipes 23 inside shelf 1 are horizontally installed, with spray nozzles installed at the top of each layer of goods. The horizontal branch pipes are installed within the height range of the horizontal structural members of each layer of shelf 1, and the top of the largest diameter horizontal branch pipe does not exceed the horizontal structural member of shelf 1. The supports are fixed to the uprights of shelf 1 on both sides using angle steel brackets. For spray nozzle branch pipes that need to extend to the center of the goods, the supports are fixed to the horizontal structural members of shelf 1 using stainless steel cable ties. Considering the need to adjust and control errors during later pipe installation, the bolt holes connecting the supports to shelf 1 are lengthened. The branch pipe supports 33 are as follows... Figure 7 As shown.

[0061] As a preferred technical solution of this application, the spray pipe installation module further includes a spray main pipe 21 installation sub-module, a spray riser pipe 22 installation sub-module, and a shelf 1 spray branch pipe 23 installation sub-module;

[0062] The spray main pipe 21 installation sub-module reserves the interface of the spray riser 22 according to the design module. The spray main pipe 21 is prefabricated in the processing plant, transported to the site, and installed on the ground. Specifically, the ground support 31 is installed by a group of 2 people and the spray main pipe 21 is installed by a group of 4 people.

[0063] The spray riser 22 installation submodule is installed after the spray main pipe 21 installation submodule has installed the spray main pipe 21. The spray riser 22 is installed from bottom to top. Specifically, pulleys are installed on the column or roof steel structure at the top of the spray riser 22 and a traction rope is attached. An electric hoist is installed on the ground. After the spray riser 22 is pre-assembled in the processing yard, it is transported to the site and lifted to the installation position by the electric hoist along the column. The interface position of the spray riser 22 is connected on the shelf 1 and fixed on the riser bracket 32. Then the installation of the next section of the spray riser 22 begins until the installation is completed.

[0064] The sprinkler branch pipe 23 installation submodule is installed after the sprinkler riser pipe 22 installation submodule has installed the sprinkler riser pipe 22. The sprinkler branch pipe 23 is installed from top to bottom. Specifically, pulleys are installed on the column or roof steel structure at the top of the sprinkler riser pipe 22 and a traction rope is attached. An electric hoist is installed on the ground to pull the pre-assembled sprinkler branch pipe 23 to the installation point. Before pulling, the fire sprinkler head 5 and the heat collection cover 6 are installed. Then, the electric hoist is used to lift the pipe up the column to the installation position. The sprinkler branch pipe 23 is connected and fixed to the branch pipe bracket 33 at the interface position on the shelf 1. Then, the installation of the next section of the sprinkler branch pipe 23 begins.

[0065] As a preferred technical solution of this application, the ground support 31 includes ground support legs 36 and multiple support rods 34. The multiple support rods 34 are horizontally connected to the ground support legs 36. One main sprinkler pipe 21 is placed on the horizontal surface of one support rod 34. The support rod 34 is provided with pipe clamp holes 41 on both sides of the horizontal direction where the main sprinkler pipe 21 is placed. Fixing clamps 42 or threads are used to bind the main sprinkler pipe to the support rod 34 through the pipe clamp holes 41. The multiple support rods 34 are staggered, and the overlapping part of any two support rods 34 in the vertical direction does not exceed half the length of the support rod 34.

[0066] In this embodiment, the floor support 31 is equipped with multiple support rods 34, and each support rod 34 can hold one of the main spray pipes 21. A group of shelves 1 can be divided into areas using multiple main spray pipes 21. For example, the spray risers 22 of the high-area shelves 1 are connected to one main spray pipe 21, and the spray risers 22 of the low-area shelves 1 are connected to another main spray pipe 21. Furthermore, if the main spray pipes 21 are installed in the same vertical direction, the lower shelves... Since the sprinkler riser 22 connected to the main sprinkler pipe 21 needs to bend around the upper sprinkler pipe 21, in this embodiment, multiple support rods 34 are placed in a staggered manner so that the sprinkler riser 22 connected to the lower sprinkler pipe 21 can also be installed vertically. This avoids the large and unstable water pressure at the bend of the sprinkler riser 22 caused by bending installation. At the same time, the staggered installation of the support rods 34 requires more matching ground support legs 36, making the connection between the entire ground support 31 and the ground more stable.

[0067] As a preferred technical solution of this application, the riser support 32 and the branch support 33 include a shelf 1 support leg 35 and a support rod 34. The support rod 34 is horizontally connected to the shelf 1 support leg 35. The shelf 1 support leg 35 is provided with bolt holes, through which the riser support 32 and the branch support 33 are connected to the shelf 1. The spray riser 22 is placed vertically and contacts the side of the support rod 34. The support rod 34 is provided with pipe clamp holes 41 on both sides of the horizontal direction where the spray riser 22 is placed. Fixing clamps 42 or threads are used to bind the spray riser 22 to the support rod 34 through the pipe clamp holes 41. See Figure 6 As shown; the spray branch pipe 23 is horizontally placed on the top surface of the support rod 34. The support rod 34 has pipe clamp holes 41 on both sides of the horizontal direction where the spray branch pipe 23 is placed. The fixing clamps 42 or threads are used to bind the spray branch pipe to the support rod 34 through the pipe clamp holes 41. See Figure 3 As shown.

[0068] As a preferred technical solution in this application, see [link to application]. Figure 8As shown, the heat collection hood 6 is disposed between the fire sprinkler head 5 and the spray branch pipe 23. The fire sprinkler head 5 is also connected to a water collection hood 7, which is disposed below the fire sprinkler head 5. The water collection hood 7 can reflect the water sprayed from the fire sprinkler head 5 onto the heat collection hood 6, and the heat collection hood 6 then sprays the water outwards. The heat collection hood 6 is connected to the spray branch pipe 23 by several first connecting ropes 81. When one of the first connecting ropes 81 breaks, the heat collection hood 6 can be connected to the spray branch pipe 23 by the other first connecting ropes 81. When multiple or all of the first connecting ropes 81 break, the heat collection hood 6 can be connected to the spray branch pipe 23 by second connecting ropes 82. The first connecting ropes 81 break before reaching the preset temperature reached by the fire sprinkler head 5. The second connecting ropes 82 are made of flame-retardant material. Furthermore, a baffle is provided on the edge of the heat collection cover 6. The baffle is movably connected to the heat collection cover 6 via a rotating shaft, and the baffle remains vertically downward under the action of gravity.

[0069] It should be noted that the heat collection cover 6 is used in conjunction with the fire sprinkler head 5. When a fire occurs, the heat generated by the burning items rises, but there may still be a distance between the rising direction and the fire sprinkler head 5. At this time, the time for the fire sprinkler head 5 to reach the preset opening temperature will be extended, and it will not meet the requirements. Therefore, the heat collection cover 6 is installed above the sprinkler head. When the heat rises, the heat collection cover 6 can absorb the heat that appears over a relatively larger area.

[0070] In this embodiment, a water collection shroud 7 is also provided below the fire sprinkler head 5. After the water collection shroud 7 receives the water sprayed from the fire sprinkler head 5, the water is sprayed out towards the heat collection shroud 6. The heat collection shroud 6 can disperse the water flow to the surrounding area of ​​the shroud. The heat collection shroud 6 plays a role in heat collection before the fire sprinkler head 5 sprays water. After the fire sprinkler head 5 sprays water, the heat collection function is no longer needed. At this time, it also acts as a water flow dispersion plate, increasing the spray surface and the fire extinguishing range. Furthermore, when a fire occurs, the ignition point, the size of the fire, or the direction of fire development is usually not directly below the fire sprinkler head 5. In this case, if more water can be sprayed towards the ignition point, the size of the fire, or the direction of fire development, the fire extinguishing effect will be better. Therefore, in this embodiment, the heat collection shroud 6 is connected to the sprinkler branch pipe 23 through the first connecting rope 81. The first connecting rope 81 has a low melting point and breaks when a predetermined temperature is reached. If the melting point is lower than the preset temperature of the fire sprinkler head 5, then when a fire occurs, the first connecting rope 81 closest to the fire will break first before reaching the preset temperature of the fire sprinkler head 5, causing the heat collection plate to tilt in the direction of the fire. At this time, when the fire sprinkler head 5 reaches the preset temperature and starts spraying water, more water will spray out in the tilt direction of the heat collection plate, so that the ignition point, the larger fire, or the direction of fire development will receive more fire extinguishing resources. When the fire is large, when most or all of the first connecting ropes 81 break, the heat collection cover 6 is then connected to the sprinkler branch pipe 23 through the second connecting rope 82, and the tilt angle of the heat collection plate gradually decreases. When the fire is large and the fire spreads over a large area, the water flow usually no longer needs to tilt in a certain direction to extinguish the fire evenly over a large area. The second connecting rope 82 is made of flame-retardant material, so that the heat collection cover 6 can still disperse the water flow after the first connecting rope 81 breaks. Furthermore, the edge of the heat collection hood 6 is provided with baffles 9. When no external force is applied, the baffles 9 remain vertically downward due to their own weight. The baffles 9 can prevent the water diverted through the heat collection plate from being too wide, which could lead to poor fire extinguishing effect. More importantly, when part of the first connecting rope 81 breaks and the heat collection plate tilts, the end of the heat collection plate away from the fire will rise. The water flow in this area will get an initial direction of oblique upward, and the water flow will spray a longer distance in the horizontal direction, even beyond the fire range. Therefore, with the setting of the baffles 9, when the water is sprayed out, it is blocked by the baffles 9 and sprays too much in the vertical direction, which prevents the water flow from spraying too far in the horizontal direction and thus failing to play a fire extinguishing role.

[0071] As a preferred technical solution of this application, each shelf 1 is provided with two fire sprinklers 5, including a first sprinkler and a second sprinkler. The preset temperature of the first sprinkler is higher than that of the second sprinkler, and the water output of the first sprinkler is greater than that of the second sprinkler. The water output of the second sprinkler is in the form of a mist. As a preferred technical solution of this application, each fire sprinkler 5 is assigned a unique number. When one of the fire sprinklers 5 is turned on, the preset temperature of all adjacent fire sprinklers 5 in the spatial direction is controlled to decrease.

[0072] It should be noted that there are various types of fire sprinkler heads 5. Among them, there are disposable sprinkler heads that burst when a certain temperature is reached to open and release water. Common temperatures include orange 57°C, red 68°C, yellow 79°C, green 93°C, blue 141°C, purple 182°C, and black 227°C. In this embodiment, the first sprinkler head can use red 68°C, and the second sprinkler head can use orange 57°C. For multiple uses, the temperature for opening the sprinkler head can be preset by setting the control device.

[0073] In this embodiment, a first sprinkler and a second sprinkler are installed above each shelf 1. The second sprinkler at the shelf 1 where a fire occurs has an alarm function. It alarms and sprays water mist to cool the area in the early stages of a fire or when the temperature is high, thus providing initial temperature control. The alarm notifies staff to check. If the fire is extinguished or the temperature drops, the first sprinkler does not need to be turned on again to avoid damage to the items on the shelf 1 from the large water flow. When the fire develops and the temperature continues to rise, the first sprinkler is turned on again. Simultaneously, if the fire spreads to nearby shelves 1, the second sprinkler above the nearby shelves 1 will ignite earlier and begin spraying water to pre-cool their area and reduce the spread of the fire. In another embodiment, a control system... The fire sprinklers 5 are numbered, and each fire sprinkler 5 has a unique number. When a fire occurs and one of the fire sprinklers 5 starts spraying water, the control system uses the spraying fire sprinkler 5 as the center and lowers the preset temperature of the adjacent fire sprinklers 5 in the up, down, left, right, front, and back directions. Using the adjacent fire sprinklers 5 as the center, when the fire shows a tendency to spread and the temperature rises in a certain adjacent direction, the fire sprinklers 5 in that direction start spraying water earlier than the initial preset temperature, trying to control the fire area at the initial position. When the fire sprinklers 5 in that direction start spraying water earlier, the control system uses the spraying fire sprinkler 5 as the center and lowers the preset temperature of the fire sprinklers 5 adjacent to the fire sprinkler 5 in that direction in advance through the control system.

[0074] As a preferred technical solution of this application, it also includes a periodic detection module, which includes a detection nozzle and a heating module. The length of the spray branch pipe 23, which is away from the end of the spray riser 22, extends beyond the shelf 1. A detection nozzle and a heating module are installed in the part that extends beyond the shelf 1.

[0075] The heating module heats the fire sprinkler head 5 periodically according to a preset time. The detection sprinkler head is turned on when it reaches the preset temperature to detect whether water is flowing out and the water pressure data. After cooling down, the detection sprinkler head is turned off and the detection data is uploaded.

[0076] In this embodiment, a periodic detection module is provided. The detection sprinkler, like the fire sprinkler 5, activates after reaching a preset temperature. It also records whether water is flowing from the sprinkler and the water pressure data. Since the sprinkler system is a fire-fighting facility and serves as a safety measure in case of fire, it is highly likely to remain unused for many years. During periods of disuse, various factors may lead to a lack of water or insufficient water pressure in the sprinkler pipes, resulting in insufficient water for fire suppression when water is urgently needed. Therefore, the length of the sprinkler branch pipe 23, located away from the sprinkler riser 22, extends beyond the shelf 1. A detection sprinkler and a heating module are installed on the portion extending beyond the shelf 1. The heating module periodically heats the fire sprinkler 5 according to a preset time. The detection sprinkler activates when it reaches the preset temperature to detect whether water is flowing and the water pressure data. After cooling down, the detection sprinkler is turned off. The system uploads test data. For the test nozzles extending beyond the shelf 1 at the end furthest from the sprinkler riser 22 to discharge water, the main sprinkler pipe 21, the lower-level sprinkler riser 22, and the same-level sprinkler branch pipe 23 must be unobstructed. Therefore, if the highest test nozzle discharges water normally, it indicates that the main sprinkler pipe 21, the sprinkler riser 22, and the highest-level sprinkler branch pipe 23 within this shelf 1 are unobstructed. The temperature trigger switch of each test nozzle on each level is checked for proper function. The water pressure data is uploaded to the system to check if the water pressure on each level is sufficient. Furthermore, the water pressure data from the highest to the lowest level should gradually increase. If the system shows that the water pressure data for each level does not increase gradually, an inspection is required. Additionally, the test nozzles are numbered. When a test nozzle sprays water, the preset temperature of the adjacent fire sprinkler 5 is checked to verify if the system is operating normally.

[0077] Secondly, a construction method for a sprinkler system inside a tall shelving unit includes the following steps:

[0078] Step S1: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe 21, a sprinkler riser 22, and a sprinkler branch pipe 23. The support includes a ground support 31, a riser support 32, and a branch support 33. Determine the number of sections and the length of each section of the sprinkler pipe, as well as the installation positions of the sprinkler pipe, the support, and the fire sprinkler head 5, based on the characteristics of the shelf 1 and the cargo transportation trajectory. The ground support 31 is connected to the ground according to the characteristics of the shelf 1 and the cargo transportation trajectory. The main sprinkler pipe 21 is installed above the ground through the ground support 31. The riser support 32 and... The branch pipe support 33 is fixed on the upright structure of the two side shelves 1. The upright pipe support 32 is connected to the spray upright pipe 22. The branch pipe support 33 is connected to the spray branch pipe 23. The spray main pipe 21 introduces water source. The spray upright pipe 22 is vertically connected to the spray main pipe 21 to lead the water source to each shelf 1. The spray branch pipe 23 of each shelf is horizontally connected to the spray upright pipe 22 to lead the water source to the top of each shelf 1 on each shelf. A fire sprinkler 5 connected to the spray branch pipe 23 is installed on the top of each shelf 1. The fire sprinkler 5 is turned on after reaching the preset temperature.

[0079] Step S2: Complete the construction according to the number of sections and the length of each section of the sprinkler pipe;

[0080] Step S3: When assembling the rack 1 on the ground, install the upright support 32 and the branch support 33 onto the rack 1 structure according to the installation position determined in step S1, and complete the support installation before each section of rack 1 is hoisted into place.

[0081] Step S4: The main spray pipe 21 and the ground support 31 are installed after the rack 1 is hoisted into place. The spray riser 22 is installed after the rack 1 is hoisted into place and finely adjusted and tightened. The spray branch pipe 23 is installed after the spray riser 22 is installed.

[0082] This specific solution takes the Wuliangye finished product packaging and intelligent warehousing and distribution integrated project's nine intelligent warehouses as an example. In the steel structure workshop, a single-row rack 1 reaches a height of 22 meters and a length of 140 meters. The sprinkler system installed within rack 1 is extensive, involving numerous high-altitude operations, and there are no suitable conditions for using lifting vehicles or other machinery for pipework construction within rack 1. By optimizing the layout of the sprinkler system's pipe network, prefabricating, and pre-assembling, the amount of on-site work and high-altitude work is reduced. This improves the system installation process, reduces machinery rental costs and construction costs, and achieves the project's high-quality planning and design requirements, resulting in relatively optimal installation results and contributing to the overall project's excellence. Through comparative analysis, the direct benefits are as follows:

[0083]

[0084] In summary, comparing the two construction schemes, the above construction method is expected to save 712,500 yuan in machinery rental fees and 675,000 yuan in labor costs for the nine intelligent warehouses. Therefore, this method, through optimizing the layout of the spray system's piping, prefabrication, and pre-assembly, reduces on-site and high-altitude work, thereby streamlining the system installation process, reducing machinery rental costs and overall construction costs. This achieves the desired project optimization planning and design requirements, resulting in optimal installation results. It has broad applicability and significant potential for wider adoption.

[0085] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A spray system for tall shelving, characterized in that, include: Design module: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe, a sprinkler riser, and a sprinkler branch pipe. The support includes a ground support, a riser support, and a branch pipe support. Determine the number of sections and the length of each section of the sprinkler pipe, as well as the installation positions of the sprinkler pipe, the support, and the fire sprinkler head, based on the characteristics of the shelving and the cargo transportation trajectory. Pre-processing module: Completes construction according to the number of sections and length of each section of the spray pipe; Pre-assembly module for supports: During the assembly of the rack on the ground, the upright supports and the branch supports are installed on the rack structure according to the installation positions determined by the design module. The support installation is completed before each rack section is hoisted into place. Sprinkler pipe installation module: The main sprinkler pipe and the ground support are installed after the rack is hoisted into place; the sprinkler riser is installed after the rack is hoisted into place and finely adjusted and tightened; the sprinkler branch pipe is installed after the sprinkler riser is installed. The floor-mounted support is connected to the ground according to the characteristics of the shelving and the cargo transportation trajectory. The main sprinkler pipe is installed above the ground through the floor-mounted support. The upright support and branch support are fixed on the upright structure of the shelving on both sides. The upright support is connected to the sprinkler upright, and the branch support is connected to the sprinkler branch pipe. The main sprinkler pipe introduces a water source. The sprinkler upright is vertically connected to the main sprinkler pipe, leading the water source to each shelf. The sprinkler branch pipe on each shelf is horizontally connected to the sprinkler upright, leading the water source to each shelf cell on each shelf. A fire sprinkler head connected to the sprinkler branch pipe is installed above each shelf cell. The fire sprinkler head turns on after reaching a preset temperature.

2. The spray system inside a tall shelving unit according to claim 1, characterized in that, The upright support and the branch support are fixed to the upright structure of the two sides of the rack using angle steel brackets, and are connected to the spray upright and the spray branch. The length and number of each section of the spray upright inside the rack are determined according to the number of rack layers. The spray branch is installed at the bottom of the top structural beam of each rack layer. The branch support is installed at the middle elevation of each rack layer. The plane of the branch support is within the width of the rack upright. The support form meets the structural stress requirements of the rack and does not collide or conflict with the rack structure or the transportation and storage of goods.

3. The spray system inside a tall shelving unit according to claim 2, characterized in that, The spray pipe installation module also includes a spray main pipe installation sub-module, a spray riser installation sub-module, and a shelf spray branch pipe installation sub-module; The sprinkler main pipe installation submodule reserves the interface of the sprinkler riser according to the design module. The sprinkler main pipe is prefabricated by cutting materials in the processing plant and transported to the site for ground installation. Specifically, the ground support is installed by a group of 2 people and the sprinkler main pipe is installed by a group of 4 people. The sprinkler riser installation submodule is installed after the sprinkler main pipe installation submodule has installed the sprinkler main pipe. The sprinkler riser is installed from bottom to top. Specifically, pulleys are installed on the columns or roof steel structure at the top of the sprinkler riser, and traction ropes are hung on them. An electric hoist is installed on the ground. After the sprinkler riser is pre-assembled in the processing yard, it is transported to the site and lifted to the installation position by the electric hoist along the column. The sprinkler riser interface is connected and fixed to the riser bracket on the shelf. Then the installation of the next section of the sprinkler riser begins until the installation is completed. The sprinkler branch pipe installation submodule is performed after the sprinkler riser installation submodule has installed the sprinkler riser. The sprinkler branch pipe is installed from top to bottom. Specifically, pulleys are installed on the column or roof steel structure at the top of the sprinkler riser, and a traction rope is attached. An electric hoist is installed on the ground to pull the pre-assembled sprinkler branch pipe to the installation point. Before pulling, the fire sprinkler head and heat collection cover are installed. Then, the electric hoist is used to lift the sprinkler branch pipe to the installation position along the column. The sprinkler branch pipe interface is connected and fixed to the branch pipe bracket on the shelf. Then, the installation of the next section of the sprinkler branch pipe begins.

4. The spray system inside a tall shelving unit according to claim 3, characterized in that, The ground support includes ground support legs and multiple support rods. The multiple support rods are horizontally connected to the ground support legs. One main sprinkler pipe is placed on the horizontal surface of one of the support rods. The support rods have pipe clamp holes on both sides of the horizontal direction where the main sprinkler pipe is placed. Fixing clamps or threads are used to bind the main sprinkler pipe to the support rods through the pipe clamp holes. The multiple support rods are staggered, and the overlapping part of any two support rods in the vertical direction does not exceed half the length of the support rod.

5. A spray system for tall shelving as described in claim 4, characterized in that, The riser support and the branch support include shelf support legs and support rods. The support rods are horizontally connected to the shelf support legs. Bolt holes are provided on the shelf support legs, through which the riser support and the branch support are connected to the shelf. The spray riser is placed vertically and contacts the side of the support rod. The support rod has pipe clamp holes on both sides of the horizontal direction where the spray riser is placed. Fixing clamps or threads are used to bind the spray riser to the support rod through the pipe clamp holes. The spray branch is placed horizontally on the top surface of the support rod. The support rod has pipe clamp holes on both sides of the horizontal direction where the spray branch is placed. Fixing clamps or threads are used to bind the spray branch to the support rod through the pipe clamp holes.

6. A spray system for tall shelving as described in any one of claims 3-5, characterized in that, The heat collection hood is disposed between the fire sprinkler head and the sprinkler branch pipe. The fire sprinkler head is also connected to a water collection hood, which is disposed below the fire sprinkler head. The water collection hood can reflect the water sprayed by the fire sprinkler head onto the heat collection hood, and the heat collection hood then sprays the water outwards. The heat collection hood is connected to the sprinkler branch pipe by several first connecting ropes. When one of the first connecting ropes breaks, the heat collection hood can be connected to the sprinkler branch pipe by the other first connecting ropes. When multiple or all of the first connecting ropes break, the heat collection hood can be connected to the sprinkler branch pipe by second connecting ropes. The first connecting ropes break before reaching the preset temperature reached by the fire sprinkler head. The second connecting ropes are made of flame-retardant material.

7. A spray system for tall shelving as described in claim 6, characterized in that, Each shelf has two fire sprinklers, including a first sprinkler and a second sprinkler. The preset temperature of the first sprinkler is higher than that of the second sprinkler, and the water output of the first sprinkler is greater than that of the second sprinkler. The water output of the second sprinkler is in the form of a mist.

8. A spray system for tall shelving as described in claim 6, characterized in that, Each fire sprinkler is assigned a unique number. When one of the fire sprinklers is turned on, the preset temperature of all adjacent fire sprinklers in the spatial direction is reduced.

9. A spray system for tall shelving as described in claim 8, characterized in that, It also includes a periodic detection module, which includes a detection nozzle and a heating module. The length of the spray branch pipe at the end away from the spray riser extends beyond the shelf, and a detection nozzle and a heating module are installed on the part that extends beyond the shelf. The heating module heats the fire sprinkler head periodically according to a preset time. The detection sprinkler head is turned on when it reaches the preset temperature to detect whether water is flowing out and the water pressure data. After cooling down, the detection sprinkler head is turned off and the detection data is uploaded.

10. A construction method for a spray system inside a tall shelving unit, characterized in that, Includes the following steps: Step S1: Determine the type of sprinkler pipe and the type of support. The sprinkler pipe includes a main sprinkler pipe, sprinkler risers, and sprinkler branch pipes. The support includes floor supports, riser supports, and branch pipe supports. Based on the characteristics of the shelving and the cargo transport trajectory, determine the number of sprinkler pipe segments and the length of each segment, as well as the installation positions of the sprinkler pipes, supports, and fire sprinklers. The floor supports are connected to the ground according to the shelving characteristics and cargo transport trajectory. The main sprinkler pipe is installed above ground via the floor supports. The riser supports... The frame and branch pipe supports are fixed on the upright structure of the two side shelves. The upright pipe supports are connected to the sprinkler upright pipes, and the branch pipe supports are connected to the sprinkler branch pipes. The sprinkler main pipe introduces water source. The sprinkler upright pipes are vertically connected to the sprinkler main pipes to lead the water source to each shelf. The sprinkler branch pipes on each shelf are horizontally connected to the sprinkler upright pipes to lead the water source to the top of each shelf on each shelf. A fire sprinkler head connected to the sprinkler branch pipe is installed on the top of each shelf. The fire sprinkler head is turned on after reaching the preset temperature. Step S2: Complete the construction according to the number of sections and the length of each section of the sprinkler pipe; Step S3: During the assembly of the rack on the ground, install the upright support and the branch support onto the rack structure according to the installation positions determined in Step S1. Complete the support installation before each section of the rack is hoisted into place. Step S4: The main spray pipe and the ground support are installed after the rack is hoisted into place. The spray riser is installed after the rack is hoisted into place and finely adjusted and tightened. The spray branch pipe is installed after the spray riser is installed.

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