Auxiliary device for railway logistics warehouse conveying platform spraying system and spraying system

Abstract

The utility model relates to an auxiliary device and spraying system for railway logistics warehouse transmission platform spraying system, the structural column and steel platform are provided in the logistics warehouse, the spraying system includes water supply vertical pipe and many water distribution branch pipes, the pipe diameter of water supply vertical pipe is greater than the pipe diameter of water distribution branch pipe, the auxiliary device includes water distribution subassembly and damping assembly, water distribution subassembly sets up between water supply vertical pipe and many water distribution branch pipes, and the water in water supply vertical pipe is distributed to many water distribution branch pipes, water distribution subassembly and water supply vertical pipe all are fixed on the structural column, water distribution branch pipe is fixed on the steel platform, and damping assembly is connected between water distribution subassembly and each water distribution branch pipe. Compared with prior art, the utility model has the advantages of convenient installation, simple process, small steel consumption, satisfying fire control standard requirements and the like.

Description

Technical Field

[0001] This utility model relates to a fire protection system for a cargo sorting and conveying facility, and more particularly to an auxiliary device and a sprinkler system for a railway logistics warehouse conveying platform. Background Technology

[0002] The cargo sorting and conveying system is a core facility of railway logistics warehouses. Its efficient, precise, and intelligent operation greatly improves the efficiency of railway logistics transportation. The complex sorting and conveying equipment is supported by steel platforms. The supporting buildings for the sorting and conveying system are logistics warehouses, which are large spaces with dense, three-dimensional distribution of flammable materials and extremely high fire loads, posing significant fire risks. When a logistics warehouse is located adjacent to a railway passenger station, a fire will not only cause economic losses but also seriously threaten passenger safety, interfere with or even damage train operation facilities, and have a significant negative social impact. Selecting appropriate and efficient automatic fire extinguishing facilities and strictly designing and installing fire extinguishing systems in accordance with fire protection codes to control the fire in its initial stage is crucial for the fire safety of logistics warehouses.

[0003] In the renovation and upgrading of railway passenger stations and surrounding areas, the fire protection systems of railway passenger station logistics warehouses and express delivery warehouses generally suffer from insufficient load-bearing capacity and limited construction conditions. Existing systems are difficult to balance the economy and feasibility of renovation and upgrading, and there is an urgent need for a fire protection system solution that takes into account safety, greenness and adaptability.

[0004] Automatic sprinkler systems use water as the extinguishing medium and offer advantages such as mature technology, rapid response, strong fire control capabilities, unlimited protected area / volume, simple piping / component and water supply system construction, low cost, and environmental friendliness, making them the preferred choice for automatic fire suppression systems in logistics warehouses. To meet the comprehensive fire control requirements of the three-dimensional transmission system, the automatic sprinkler system adopts a multi-layer design: in addition to installing sprinklers under the warehouse ceiling, sprinklers and water supply pipes are also installed under each layer of steel support platform, thus providing an unobstructed and effective fire-extinguishing water source for all parts of the goods.

[0005] The technical challenge of installing sprinkler heads and water supply pipes under steel platforms is that in projects such as the renovation and upgrading of existing railway logistics warehouses and airport baggage handling facilities, the load-bearing capacity of the steel platform is limited. Technical requirements stipulate that the diameter of a single sprinkler pipe fixed under the platform cannot exceed DN50; that is, pipes with a diameter greater than DN50 cannot use the steel platform as a support point. According to automatic sprinkler system standards, a DN50 branch pipe can only supply water to eight K80 sprinkler heads. Main and branch pipes with diameters from DN65 to DN150 are required to meet the water supply needs of the sprinkler heads installed under the steel platform. For example, a logistics warehouse has a steel platform area of ​​approximately 2000 m². 2 The fire hazard level is medium hazard, level II. The sprinkler heads are arranged in a square with a spacing of no more than 3.0 meters, and there are a total of 255 sprinkler heads. Figure 1As shown, the water supply riser 2 is installed on the structural column 1 of the logistics warehouse. To meet the water supply requirements of the sprinkler heads, the main pipe a1 with a diameter of DN150 and the branch pipe a2 with a diameter of DN65~DN100 are fixed below the steel platform a. The main pipe a1 is connected to the water distribution branch pipe 4. The diameter of the main pipe and the branch pipe exceed the load limit of the steel platform.

[0006] To address this challenge, the available technologies and their limitations are as follows: Existing technology 1: Using a ring or grid-like pipe layout to improve hydraulic balance and reduce pressure loss caused by excessive flow in a single pipe, thereby reducing the diameter of the main pipe, such as an automatic sprinkler fire extinguishing system that uses an indoor fire hydrant ring network for water supply disclosed in Chinese patent CN211705704U.

[0007] Disadvantages: The ring or grid-like pipe layout can only reduce the diameter of part of the DN150 main pipe to DN100, and the pipe diameter still exceeds the load limit of the steel platform; the length of the DN100 ring or grid-like pipe increases, and the total weight of the sprinkler pipes fixed under the steel platform increases; the load-bearing capacity of the steel platform still needs to be increased, and the amount of steel used and the cost of the steel platform increase.

[0008] Existing technology 2: Use lightweight pipes such as thin-walled stainless steel pipes to reduce the total load on the pipes.

[0009] Disadvantages: Thin-walled stainless steel pipes have a higher unit price than commonly used galvanized steel pipes, and special interfaces are required at the connection points with galvanized steel pipes in non-steel platform areas, increasing pipe costs and complicating installation procedures; thin-walled stainless steel pipes are 30% to 50% lighter than commonly used galvanized steel pipes, but some pipes still exceed the load-bearing capacity of the steel platform, requiring increased steel platform load-bearing capacity, thus increasing the amount of steel used and the cost of the steel platform.

[0010] Existing technology 3: Load balancing strategy to increase the rigidity of the cargo platform to support large-diameter spray pipes.

[0011] In the calculation of steel platform structure, the weight of sprinkler pipes is included in the overall load distribution, and the load per unit area is reduced by local reinforcement (such as adding truss support points) or by distributing the pipes.

[0012] Disadvantages: Local reinforcement of the steel platform restricts the placement of nozzles in the later stage, which is not easy to implement in engineering; the amount of steel used and the cost of the steel platform are significantly increased.

[0013] Existing technology 4: Sprinklers are installed below the platform according to the light hazard level, the nozzle spacing is increased, and the pipe diameter is reduced.

[0014] Disadvantages: Does not meet regulatory requirements. It requires FDS fire simulation and CFD fluid dynamics analysis to prove that the system, even after adjusting the number of sprinklers, still meets fire control performance standards. Furthermore, it requires performance-based design validation and obtaining special approval from the fire department for "designs exceeding regulations," a complex process; its fire control and extinguishing capabilities are weaker than the medium-hazard Class II design standard; it cannot reduce all pipe diameters to below DN50, still requiring increased steel platform load-bearing capacity, increasing steel consumption and cost.

[0015] Existing technology 5: Modify the pipe hanger anchoring method. Pipes with a diameter exceeding DN50 are anchored and fixed on the ceiling, columns, or floor slab, with the load applied to the ceiling, columns, or floor slab. Pipes with a diameter of DN50 or less are fixed on steel platform a. Figure 2 As shown, the DN150 sprinkler water supply ring pipe 12 of the logistics warehouse is fixed on the top plate d of the logistics warehouse. The specific fixing method is as follows: (1) A hanger 13 is installed on the top plate d to fix the pipe.

[0016] (2) Support rods 14 are installed on the structural column 1 to support the pipe.

[0017] (3) A steel beam 15 and a steel column 16 are installed on the structural column 1 to support the pipeline.

[0018] (4) Roots are set on the ground e and supports 17 to support the pipe.

[0019] Disadvantages: The hanger penetrates the steel platform, affecting the passage of the conveyor belt; the support rods are prone to conflict with other pipes; it affects the use of the space below; it requires a large amount of steel and is therefore costly; it is difficult to construct; and it cannot solve the impact of the vibration of the cargo platform on the sprinkler pipes. Utility Model Content

[0020] The purpose of this utility model is to overcome the defects of the existing technology and provide an auxiliary device and sprinkler system for the sprinkler system of the railway logistics warehouse transmission platform that is easy to install, simple in process, uses little steel, and meets the requirements of fire protection specifications. It comprehensively considers the load limit of the steel platform and the installation requirements of the automatic sprinkler system, and also considers the impact of conveyor belt vibration on the automatic sprinkler system, thus resolving the contradiction between process requirements and the setting of fire extinguishing facilities.

[0021] The objective of this utility model can be achieved through the following technical solutions: An auxiliary device for a sprinkler system on a railway logistics warehouse transmission platform is disclosed. The logistics warehouse is equipped with structural columns and a steel platform. The sprinkler system includes a water supply riser and multiple water distribution branch pipes. The diameter of the water supply riser is larger than the diameter of the water distribution branch pipes. The auxiliary device includes a water distribution component and a vibration damping component. The water distribution component is located between the water supply riser and the multiple water distribution branch pipes, distributing water from the water supply riser to the multiple water distribution branch pipes. Both the water distribution component and the water supply riser are fixed to the structural columns. The water distribution branch pipes are fixed to the steel platform. The vibration damping component is connected between the water distribution component and each water distribution branch pipe.

[0022] Furthermore, the water supply riser is fixed to the structural column by a first fixing member, and the water distribution assembly is fixed to the structural column by a second fixing member.

[0023] Furthermore, the water distribution assembly includes multiple reducing multi-port pipes, which are connected in sequence.

[0024] Furthermore, each of the aforementioned reducing multi-port pipes is connected in sequence via clamp connectors.

[0025] Furthermore, the reducing multi-port pipe is a hot-dip galvanized steel pipe.

[0026] Furthermore, the reducing multi-way pipe includes a reducing tee pipe and / or a reducing four-way pipe.

[0027] Furthermore, the vibration damping component is a stretchable and deformable metal bellows.

[0028] Furthermore, the metal bellows is a stainless steel bellows.

[0029] Furthermore, the vibration damping assembly is connected to the water distribution assembly and the water distribution branch pipe respectively via flanges.

[0030] This utility model also provides a spray system for a railway logistics warehouse transmission platform, including the auxiliary devices described above.

[0031] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, the water distribution branch pipe and the water distribution component are fixed on the steel platform. The water distribution branch pipe is fixed on the steel platform, the load of the large-diameter pipe is borne by the structural column, the total length of the large-diameter pipe is shortened, and the pipes under the steel platform are all small-diameter pipes, which is convenient for installation. Only the small-diameter water distribution branch pipe is fixed on the steel platform, which does not require increasing the load-bearing capacity of the steel platform, thus saving the amount of steel used and the cost of the steel platform.

[0032] 2. The water distribution component of this utility model is a hot-dip galvanized steel pipe, so the entire pipeline system uses hot-dip galvanized steel pipe. There is no problem of connecting two types of pipes. The pipeline cost is low, economical and easy to install. There is no need to increase the load-bearing capacity of the steel platform, saving the amount of steel used and the cost of the steel platform.

[0033] 3. The use of this utility model makes the subsequent nozzle placement of the sprinkler system more flexible and in line with the actual engineering situation.

[0034] 4. Through the use of this utility model, the sprinkler system meets the requirements of fire protection specifications, the design approval process is simple, the design standard is high, and the fire control and extinguishing capabilities are strong.

[0035] 5. The water distribution component of this utility model is fixed on the structural column, and the vibration damping component is connected between the water distribution component and each water distribution branch pipe. The process is simple, the amount of steel used is small, it avoids conflict with other pipes, and there is no impact on the cargo conveyor belt and the lower space; it effectively solves the problem of damage to the spray pipes caused by the vibration of the cargo platform.

[0036] In summary, this utility model provides an economical, flexible, compliant, simple, and easy-to-construct auxiliary device for the installation of sprinkler systems under cargo steel platforms. It can be used not only in newly built logistics warehouses with three-dimensional sorting and conveying systems, but also in old railways and urban renewal projects. It allows for sprinkler system upgrades without large-scale structural reinforcement, meeting the requirements for fire safety and improved resilience. This utility model can be widely used in similar projects such as airports, railways, and logistics. Attached Figure Description

[0037] Figure 1 This is a diagram showing the arrangement of nozzles under a steel platform in an existing logistics warehouse (the dimensions in the diagram are not related to the technical solution of this utility model). Figure 2 This is a cross-sectional view of the logistics warehouse in existing technology 5; Figure 3 This is a cross-sectional view of the present utility model and the installed logistics warehouse; Figure 4 This is a top view of the installation of this utility model; In the diagram, 1. Structural column, 2. Water supply riser, 3. Water distribution assembly, 4. Water distribution branch pipe, 5. Vibration damping assembly, 6. First fixing component, 7. Second fixing component, 8. Clamp connector, 9. First flange, 10. Second flange, 11. Reducing multi-port pipe, 12. Sprinkler water supply ring pipe, 13. Hanger, 14. Support rod, 15. Steel beam, 16. Steel column, 17. Support, a. Steel platform, b. Pipe fixing component, c. Sprinkler head, d. Top plate, e. Ground. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0039] like Figure 3 and Figure 4As shown, this embodiment provides an auxiliary device for a sprinkler system on a railway logistics warehouse transmission platform. The logistics warehouse includes structural columns 1 and a steel platform a supporting sorting and transmission equipment. The sprinkler system includes a water supply riser 2 and multiple water distribution branch pipes 4. The diameter of the water supply riser 2 is larger than the diameter of the water distribution branch pipes 4. In this application scenario, the structural columns 1 are arranged with a span of 9*9 meters (the column spacing varies in different projects). The water supply risers 2 are flexibly arranged on them. The steel platform space and plan layout are scattered and irregular, with varying elevations. The water supply risers supply water to the sprinkler system under each layer of the steel platform in sections. In this embodiment, the water supply riser 2 is a DN150 riser, distributed downwards along the structural columns 1 and fixed to the structural columns 1. The water distribution branch pipes 4 are DN50 pipes, fixed below the steel platform a by pipe fasteners b, with a load not exceeding the steel platform's limit. Sprinkler heads c are installed on the water distribution branch pipes 4 to provide all-round fire protection for luggage.

[0040] like Figure 3 and Figure 4 As shown, the auxiliary device includes a water distribution component 3 and a vibration damping component 5. The water distribution component 3 is installed between the water supply riser 2 and several water distribution branch pipes 4, distributing the water in the water supply riser 2 to the several water distribution branch pipes 4. Both the water distribution component 3 and the water supply riser 2 are fixed on the structural column 1, and the water distribution branch pipes 4 are fixed on the steel platform a. The vibration damping component 5 is connected between the water distribution component 3 and each water distribution branch pipe 4, and is used to eliminate the impact of the vibration of the steel platform a caused by the operation of the cargo conveyor belt on the spray pipe.

[0041] Furthermore, in one specific embodiment, the water supply riser 2 is fixed to the structural column 1 by the first fixing member 6, and the water distribution assembly 3 is fixed to the structural column 1 by the second fixing member 7. Specifically, both the first fixing member 6 and the second fixing member 7 can be a combination of pipe brackets and pipe clamps.

[0042] Furthermore, in one specific embodiment, the water distribution assembly 3 includes multiple reducing multi-port pipes 11, which are connected sequentially. Specifically, each reducing multi-port pipe 11 is effectively connected sequentially by clamp connectors 8.

[0043] In this embodiment, both the water supply riser and the water distribution branch pipe are made of hot-dip galvanized material. The water distribution branch pipe meets the load requirements of the steel platform a and can be fixed below the steel platform a. The reducing multi-way pipe 11 also uses hot-dip galvanized steel pipe, thus ensuring that the entire pipeline system uses hot-dip galvanized steel pipe uniformly. There is no connection problem between two types of pipes, which has the advantages of low pipeline cost, economy, and easy installation. Specifically, the reducing multi-way pipe 11 includes a DN150*50 tee pipe and / or a DN150*50 four-way pipe.

[0044] Furthermore, in one specific embodiment, the vibration damping component 5 is a stretchable and deformable metal bellows. Specifically, the metal bellows is a stainless steel bellows with a corrugated wall structure. This design allows it to elastically deform in different directions under stress, enabling axial stretching or compression, as well as lateral bending and displacement, making it suitable for various forms of displacement. At the same time, stainless steel itself has good toughness and elasticity, which can support the bellows to return to its original shape after stretching and deforming, while ensuring structural stability and service life during repeated stretching and deforming processes.

[0045] like Figure 4 As shown, the vibration damping component 5 is connected to the water distribution component 3 and the water distribution branch pipe 4 via flanges. The flanges include a first flange 9 that connects the water distribution component 3 and the vibration damping component 5 as a whole, and a second flange 10 that connects the vibration damping component 5 and the water distribution branch pipe 4 as a whole. In this embodiment, both the first flange 9 and the second flange 10 are DN50 flanges.

[0046] The aforementioned auxiliary device comprehensively considers the load limitations of the steel platform and the installation requirements of the automatic sprinkler system, while also taking into account the impact of conveyor belt vibration on the automatic sprinkler system, effectively resolving the contradiction between process requirements and fire extinguishing facility installation. This auxiliary device integrates water distribution and vibration reduction, utilizing DN150 pipes and fittings to distribute water into several pipes of DN50 or less. In this auxiliary device, the water distribution branch pipes, which can be fixed under the steel platform, solve the problem of the steel platform's load limitations. When the cargo conveyor belt operates, it causes vibration in the steel platform and the water distribution branch pipes fixed to it, while the water supply risers and water distribution components fixed to the structural columns do not vibrate accordingly, leading to deformation of rigid pipes, pipe joint detachment, and leakage. This auxiliary device effectively absorbs the pipe deformation caused by vibration through the expandable and deformable metal corrugated pipes installed on each water distribution branch pipe.

[0047] In another embodiment, a spray system for a railway logistics warehouse transport platform is also provided, including the auxiliary devices described above.

[0048] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An auxiliary device for a sprinkler system on a railway logistics warehouse transmission platform, wherein the logistics warehouse is equipped with structural columns and a steel platform, and the sprinkler system includes a water supply riser and multiple water distribution branch pipes, wherein the diameter of the water supply riser is larger than the diameter of the water distribution branch pipes, characterized in that, The auxiliary device includes a water distribution component and a vibration damping component. The water distribution component is installed between the water supply riser and several water distribution branch pipes to distribute the water in the water supply riser to the several water distribution branch pipes. The water distribution component and the water supply riser are both fixed on the structural column. The water distribution branch pipes are fixed on the steel platform. The vibration damping component is connected between the water distribution component and each water distribution branch pipe.

2. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 1, characterized in that, The water supply riser is fixed to the structural column by the first fixing member, and the water distribution assembly is fixed to the structural column by the second fixing member.

3. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 1, characterized in that, The water distribution assembly includes multiple reducing multi-port pipes, which are connected in sequence.

4. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 3, characterized in that, Each of the aforementioned reducing multi-port pipes is connected in sequence via clamp connectors.

5. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 3, characterized in that, The reducing multi-port pipe is a hot-dip galvanized steel pipe.

6. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 3, characterized in that, The reducing multi-way pipe includes reducing tee pipes and / or reducing four-way pipes.

7. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 1, characterized in that, The vibration damping component is a flexible, deformable metal bellows.

8. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 7, characterized in that, The metal corrugated pipe is a stainless steel corrugated pipe.

9. The auxiliary device for the spray system of the railway logistics warehouse transmission platform according to claim 1, characterized in that, The vibration damping components are connected to the water distribution components and water distribution branch pipes via flanges.

10. A spray system for a railway logistics warehouse transfer platform, characterized in that, Includes the auxiliary device as described in any one of claims 1-9.

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