Assembly type integrated fire-fighting smoke exhaust fan room structure

Abstract

The invention relates to an assembly type integrated fire-fighting smoke exhaust fan room structure which comprises a machine room enclosure bulkhead cylinder body which is provided with a bottom plate, a first side wall and a second side wall, the first side wall and the second side wall are connected with the bottom plate and vertically arranged in parallel, and the two ends of the machine room enclosure bulkhead cylinder body in the horizontal direction are provided with a first opening end and a second opening end which are oppositely arranged correspondingly; the end cover side wall is provided with a first end cover and a second end cover which are respectively arranged at the first opening end and the second opening end; smoke suction and exhaust ports are formed in the first end cover and the second end cover and are used for being connected with a ventilation pipeline; the machine room access door is arranged on the first side wall or the second side wall and can be opened and closed; the fan is arranged in an internal space formed by the machine room enclosure bulkhead cylinder body, the first end cover and the second end cover; the machine room enclosure bulkhead cylinder body, the first end cover, the second end cover and the machine room access door are all of a prefabricated concrete structure. The fabricated integrated design is adopted, the cost is low, the self weight is light, fireproof performance is achieved, and the advantages of being stable, reusable, attractive and the like are achieved.

Description

Technical Field

[0001] This application belongs to the technical field of prefabricated buildings and fire smoke exhaust fan rooms, specifically relating to a prefabricated integrated fire smoke exhaust fan room structure. Background Technology

[0002] In recent years, with the iterative updates of standards such as the "Code for Fire Protection Design of Buildings" and the "Technical Standard for Smoke Control Systems in Buildings," dedicated equipment rooms for fire ventilation systems have been explicitly required to ensure the safe evacuation of personnel during a fire. In particular, the "Technical Standard for Distributed Charging Facilities for Electric Vehicles" stipulates that underground parking garages must have fire protection units for every 1000 square meters, resulting in a significant increase in the number of fire ventilation systems. Traditional cast-in-place ventilation rooms occupy a large amount of usable building area. For example, a 40,000-square-meter underground parking garage would require approximately 30 smoke exhaust rooms, each occupying 20-40 square meters, totaling 600-1000 square meters, significantly encroaching on parking space and other functional layouts.

[0003] In existing technologies, traditional cast-in-place machine rooms are difficult to adapt to changes in function and equipment after the main structure is completed, resulting in the need to demolish and rebuild some of the original facilities, causing material waste and construction delays. They also lack spatial flexibility and are difficult to achieve flexible layout in terms of use functions. Summary of the Invention

[0004] Based on the above analysis, the present invention aims to provide a prefabricated integrated fire smoke exhaust fan room structure to solve one or more of the above-mentioned problems existing in the prior art.

[0005] The objective of this invention is achieved as follows: A prefabricated integrated fire-fighting smoke exhaust fan room structure includes: The computer room enclosure cylindrical body has a base plate and a first side wall and a second side wall connected to the base plate and arranged vertically and parallel to each other. The two ends of the computer room enclosure cylindrical body in the horizontal direction have a first opening end and a second opening end arranged opposite to each other. The end cap sidewall has a first end cap and a second end cap, which are respectively located at the first opening end and the second opening end; both the first end cap and the second end cap are provided with smoke intake and exhaust ports, which are used to connect to ventilation ducts. The computer room access door is located on the first or second side wall and can be opened and closed. The fan is located in the internal space formed by the cylinder body of the machine room enclosure and the first and second end covers; The computer room enclosure cylinder, the first end cover, the second end cover, and the computer room maintenance door are all made of precast concrete.

[0006] Furthermore, a connecting structure is provided, and the prefabricated integrated fire smoke exhaust fan room structure is suspended below the structural floor slab through the connecting structure.

[0007] Furthermore, the computer room enclosure cylinder is also equipped with a top plate; the top plate is equipped with multiple first connection holes; the connection structure includes a connecting screw, the top end of the connecting screw is detachably connected to or pre-embedded in the structural floor slab, and the bottom end of the connecting screw can be aligned with and pass through the first connection hole on the top plate, and locked with a nut inside the computer room to realize the mounting of the computer room structure.

[0008] Furthermore, the connecting screw is a first fixing bolt, and multiple first fixing bolts extending downwards are pre-embedded at appropriate positions on the structural floor slab. The first fixing bolts can be aligned with and pass through the first connecting hole on the top plate, and are locked with nuts to realize the mounting of the computer room structure; or, the connecting screw is a hook screw, with a hook part at the top end, and a hook mating part that cooperates with the hook part is pre-embedded on the bottom surface of the structural floor slab. The bottom end of the hook screw can be aligned with and pass through the first connecting hole on the top plate, and is locked with locking nuts to realize the mounting of the computer room structure.

[0009] Furthermore, the enclosure wall of the computer room is a one-piece structure cast using a vertical molding process; or, it is produced using a centrifugal method.

[0010] Furthermore, the first opening end and the second opening end of the computer room enclosure cylinder are both provided with a first groove, and the first end cover and the second end cover are installed and fixed in the first groove. A second recess is provided on the first or second side wall, and the machine room maintenance door is installed in the second recess by a hinge assembly; Furthermore, the hinge assembly includes a hinge pin, a pivot washer, and a cylinder hinge support. The hinge pin and the cylinder hinge support are arranged in pairs and arranged vertically. The embedded part of the hinge pin is embedded in the machine room maintenance door, and the embedded part of the cylinder hinge support is embedded in the side wall where the second groove is provided. The insertion part of the hinge pin can be inserted into the cylinder hinge support and can rotate. A pivot washer is provided between the hinge pin and the cylinder hinge support. Furthermore, both the hinge pin and the cylinder hinge support are provided with two reinforcing metal ribs.

[0011] Furthermore, both the first and second end caps have outwardly protruding smoke intake and exhaust ports, and the ports of the smoke intake and exhaust ports are provided with duct connection flanges, which are used to connect with the flanges of the ventilation ducts.

[0012] Furthermore, the connection end of the duct connection flange is equipped with a reinforcing structure, which includes a second angle steel and a U-shaped tie bar. The U-shaped tie bar is welded to the second angle steel and is embedded in the duct connection flange and the smoke exhaust port to enhance the connection strength between the duct connection flange and the smoke exhaust port. The duct connection flange has a square structure, and the second angle steel is located at the right angle of the duct connection flange. The second angle steel has a through hole, and a connecting bolt is reserved in the through hole. The connecting bolt is used to connect the flange of the ventilation duct. Furthermore, multiple stiffening ribs are provided along the length of the second angle steel. The stiffening ribs are steel plates, which are arranged perpendicular to the length of the second angle steel. Furthermore, the steel plates are 3mm thick and spaced 200mm apart; Furthermore, there are multiple U-shaped tie bars, which are evenly arranged along the length of the second angle steel at a spacing of 200mm. Furthermore, the U-shaped tie bars are made by bending HPB300 steel bars with a diameter of 6mm.

[0013] Furthermore, the top of the first groove is provided with a T-shaped slot, and the bottom of the first groove is provided with a horizontally placed F-shaped slot; the first groove has a vertical groove wall and a horizontal groove wall, with the T-shaped slot on the top vertical groove wall and the F-shaped slot on the bottom horizontal groove wall; the upper ends of the first end cap and the second end cap are provided with T-shaped protrusions that fit the T-shaped slots, and the lower ends of the first end cap and the second end cap are provided with Y-shaped protrusions that fit the horizontally placed F-shaped slots; when the upper surfaces of the first end cap and the second end cap abut against the horizontal groove wall at the top of the first groove, the lowest end of the T-shaped protrusion is higher than the protruding part of the F-shaped slot, and the first end cap and the second end cap can be moved horizontally toward the interior of the computer room until the T-shaped protrusion moves above the T-shaped slot, and then the first end cap and the second end cap fall down, the T-shaped protrusion can be inserted into the T-shaped slot, and the Y-shaped protrusion can be inserted into the horizontally placed F-shaped slot.

[0014] Furthermore, the top of the first groove is provided with a T-shaped opening, and the bottom of the first groove is provided with a wedge-shaped groove; the top of the first groove has a vertical groove wall and a horizontal groove wall, and the T-shaped opening is provided on the vertical groove wall at the top; the upper ends of the first end cap and the second end cap are provided with T-shaped protrusions that fit the T-shaped opening, and the lower ends of the first end cap and the second end cap are provided with wedge-shaped ends that fit the wedge-shaped groove, and the wedge-shaped ends have wedge-shaped inclined surfaces; when the upper surfaces of the first end cap and the second end cap abut against the horizontal groove wall at the top of the first groove, the lowest end of the T-shaped protrusion is higher than the outer groove opening of the wedge-shaped groove, and the first end cap and the second end cap can be moved horizontally toward the inside of the machine room, the T-shaped protrusion can be inserted into the T-shaped opening, and the wedge-shaped end can be inserted into the wedge-shaped groove.

[0015] Furthermore, the slope angle of the wedge-shaped groove is θ, where θ = 8.53°.

[0016] Furthermore, the fan is suspended in the machine room by an anti-seismic bracket, which includes a spring, a metal adapter, a first vertical metal rod, a support plate, and a second vertical metal rod. The metal adapter is hollow and has a top wall and a bottom wall. The top wall has a first through hole, and the bottom wall has a second through hole. The first vertical metal rod passes through the first through hole and can move along its centerline. The top of the first metal rod is fixedly connected to the top of the machine room or to the structural floor slab, and the bottom of the first metal rod is fixedly connected to the center of the support plate. The spring is sleeved on the first metal rod, with its top abutting against the top wall and its bottom abutting against the support plate. The top of the second vertical metal rod passes through the second through hole and is fixedly connected to the bottom wall using a nut. The bottom of the second vertical metal rod is connected to the fan's casing. The axes of the first and second vertical metal rods are collinear.

[0017] Furthermore, the internal space of the computer room structure is equipped with an internal smoke exhaust pipe, with the two ends of the internal smoke exhaust pipe connected to the smoke intake and exhaust port on the first end cover and the smoke intake and exhaust port on the second end cover, respectively. The fan is located on the internal smoke exhaust duct, which is also equipped with a cooling mechanism.

[0018] Compared with existing technologies, the prefabricated integrated fire exhaust fan room structure provided by this invention offers a solution to the problem of low utilization efficiency of underground garages due to the large building area occupied by fire ventilation equipment rooms. At the same time, it is adaptable to flexible adjustments in terms of usage functions. It adopts a prefabricated integrated design, which is low in cost, lightweight, fire-resistant, and has multiple advantages such as stability, reusability, and aesthetics. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the prefabricated integrated fire smoke exhaust fan room structure provided by the present invention Figure 1 ; Figure 2 A schematic diagram showing the disassembly of the end cover wall and the open state of the machine room maintenance door of the prefabricated integrated fire smoke exhaust fan room structure provided by the present invention. Figure 3 Schematic diagram of the structure of the computer room enclosure cylinder provided by the present invention Figure 1 ; Figure 4 Schematic diagram of the structure of the computer room enclosure cylinder provided by the present invention Figure 2 ; Figure 5 A schematic diagram of the structure of the end cap side wall with a smoke extraction port provided by the present invention; Figure 6 A schematic diagram of the structure of the exhaust port on the end cap side wall of the present invention, which is provided with a duct connection flange; Figure 7 for Figure 6 Enlarged view of region B in the middle; Figure 8 This is a partial structural schematic diagram of the duct connection flange provided by the present invention; Figure 9 This is a schematic diagram of the hinge assembly provided by the present invention; Figure 10 A schematic diagram of the hook screw provided by the present invention; Figure 11 Schematic diagrams of the four connection structures provided by the present invention; Figure 12 A schematic diagram of the connection structure provided by the present invention using a prefabricated composite plate; Figure 13 A schematic diagram of the connection structure provided by the present invention, which adopts a horizontal rib set on the top plate; Figure 14 A schematic diagram of the connection structure provided by the present invention, which adopts a rib-shaped reinforcement on the top surface of the side wall; Figure 15 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 1 ; Figure 16 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 2 ; Figure 17 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 3 ; Figure 18 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 4 ; Figure 19 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 5 ; Figure 20 The model of the prefabricated integrated fire smoke exhaust fan room structure and ventilation duct provided by the present invention Figure 6 ; Figure 21 A schematic diagram of the connection between the end cap sidewall and the machine room enclosure cylinder provided by the present invention; Figure 22A schematic diagram of another connection structure provided by the present invention; Figure 23 A schematic diagram showing the connection between the end cap sidewall and the machine room enclosure cylinder provided by the present invention, which uses a pin locking mechanism; Figure 24 Schematic diagram of the prefabricated integrated fire smoke exhaust fan room structure provided by the present invention Figure 2 ; Figure 25 A schematic diagram of a fireproof aerogel strip installed between the computer room access door and the main structure of the computer room, as provided by the present invention; Figure 26 A schematic diagram of the first connection structure between the end cap sidewall and the machine room enclosure cylinder provided by the present invention; Figure 27 This is a schematic diagram of a second connection structure between the end cap sidewall and the machine room enclosure cylinder provided by the present invention. Figure 28 for Figure 27 A partial structural diagram of the second type of connection structure; Figure 29 A schematic diagram of the structure of the fan provided by the present invention, which is installed inside the machine room structure by means of a seismic support; Figure 30 This is a schematic diagram of the structure of the seismic bracing provided by the present invention; Figure 31 A cross-sectional view of the prefabricated integrated fire smoke exhaust fan room structure with cooling function provided by the present invention. Figure 1 ; Figure 32 A cross-sectional view of the prefabricated integrated fire smoke exhaust fan room structure with cooling function provided by the present invention. Figure 2 .

[0021] Figure label: 100. Computer room structure; 200. Structural floor slab; 300. Ventilation duct; 400. Corrugated pipe; 1. Machine room enclosure cylinder; 11. First side wall; 111. Second groove; 12. Second side wall; 13. First opening end; 131. First groove; 1311. T-shaped groove; 1312. F-shaped groove; 1313. Wedge-shaped groove; 14. Second opening end; 15. Base plate; 151. Drain outlet; 16. Top plate; 1601. First connecting hole; 17. Fireproof aerogel strip; 18. Embedded buckle; 2. End cap sidewall; 21. First end cap; 211. T-shaped protrusion; 212. Y-shaped protrusion; 213. Wedge-shaped end; 22. Second end cap; 23. Smoke intake / exhaust port; 231. Duct connection flange; 2311. Second angle steel; 2312. U-shaped tie bar; 2313. Connecting bolt; 2314. Stiffening rib; 24. Arrow-shaped pin; 25. Expansion bolt; 3. Machine room maintenance door; 31. Hinge assembly; 311. Hinge pin; 312. Shaft washer; 313. Cylinder hinge support; 314. Reinforcing metal rib; 4. Fan; 41. Cover; 42. Seismic brace; 421. Spring; 422. Metal adapter; 423. First vertical metal rod; 424. Support plate; 425. Second vertical metal rod; 43. Motor; 44. Internal circulation fan impeller; 45. Guide hole; 5. Connection structure; 51. Hook screw; 511. Hook part; 512. Locking nut; 52. Precast composite slab; 53. U-shaped hoop; 54. Rib; 541. Horizontal rib; 55. Stud; 56. First steel plate; 57. Second steel plate; 58. First angle steel; 6. SiO2 aerogel layer; 7. Electrical Warehouse; 8. Internal smoke exhaust duct; 81. Smoke exhaust duct; 82. Flexible connecting pipe; 9. Sprinkler system; 91. Sprinkler pipe; 92. Drain pipe; 93. Sprinkler head. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. It should be noted that, unless otherwise specified, the implementation methods and features in the implementation methods in this disclosure can be combined, separated, interchanged, and / or rearranged. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0024] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0025] Example 1 A specific embodiment of the present invention discloses a prefabricated integrated fire smoke exhaust fan room structure, hereinafter referred to as "fan room structure 100". Precast concrete is used as the main structure of fan room structure 100, as well as the external cladding material of fan room structure 100, and as the fireproof material of fan room structure 100, so as to achieve the integration of building structure, decoration and function.

[0026] like Figures 1 to 32 As shown, the prefabricated integrated fire exhaust fan room structure includes a fan room enclosure cylinder 1, end cap side walls 2, a fan room inspection door 3, and a fan 4 installed inside the fan room. The end cap side walls 2 include a first end cap 21 and a second end cap 22. The fan room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the fan room inspection door 3 are all made of precast concrete. The fan room enclosure cylinder 1 has a base plate 15 and a first side wall 11 and a second side wall 12 connected to the base plate 15 and arranged vertically parallel to each other. The two ends of the fan room enclosure cylinder 1 in the horizontal direction respectively have a first side wall 11 and a second side wall 12 arranged opposite to each other. Opening end 13 and second opening end 14; first end cover 21 and second end cover 22 are respectively provided on the first opening end 13 and the second opening end 14; both the first end cover 21 and the second end cover 22 are provided with smoke inlet and exhaust outlet 23, which are used to connect with the ventilation duct 300, one of the smoke inlet and exhaust outlet 23 is a smoke inlet and the other smoke inlet and exhaust outlet 23 is a smoke outlet; the machine room maintenance door 3 is provided on the first side wall 11 or the second side wall 12, and can be opened and closed; the fan 4 is provided in the internal space formed by the machine room enclosure cylinder 1 and the first end cover 21 and the second end cover 22.

[0027] In this embodiment, the prefabricated integrated fire smoke exhaust fan room structure can be divided into suspended type and ground type, which are used for underground garage and roof fire ventilation equipment, respectively.

[0028] The following explanation uses a prefabricated integrated fire smoke exhaust fan room structure with hoisting as an example: The computer room structure 100 is connected to the structural floor slab 200 via connecting structure 5 and is suspended below the structural floor slab 200. The specific structural design of connecting structure 5 is related to the structure of the computer room enclosure cylinder 1, specifically whether the computer room enclosure cylinder 1 includes a top plate 16, and includes the following possibilities: In the first case, the computer room enclosure cylinder 1 is also provided with a top plate 16, and the top plate 16 is provided with multiple first connection holes 1601; the connection structure 5 in this case includes a connecting screw, the top end of the connecting screw is detachably connected to or pre-embedded in the structural floor slab 200, and the bottom end of the connecting screw can be aligned with and pass through the first connection hole 1601 on the top plate 16, and locked with a nut inside the computer room to realize the mounting of the computer room structure 100.

[0029] Specifically, the connecting screw is the first fixing bolt. Multiple first fixing bolts extending downwards are pre-embedded at appropriate positions on the structural floor slab 200. These first fixing bolts can be aligned with and pass through the first connecting hole 1601 on the top plate 16, and are locked in place using nuts, thus achieving the mounting of the machine room structure 100; or, see [link to other documentation]. Figure 10 The connecting screw is a hook screw 51, with a hook portion 511 at its top. A hook mating portion that mates with the hook portion 511 is pre-embedded on the bottom surface of the structural floor slab 200. The bottom end of the hook screw 51 can be aligned with and pass through the first connecting hole 1601 on the top plate 16, and is locked using a locking nut 512 to achieve the mounting of the machine room structure 100. Optionally, the first fixing bolt can be a one-way bolt to prevent loosening. Correspondingly, the lower threaded section of the hook screw 51 can also adopt a one-way bolt thread structure.

[0030] In the second scenario, the connecting structure 5 includes a precast composite slab 52, which serves as the top slab 16 of the machine room enclosure cylinder 1. The precast composite slab 52 has truss reinforcement bars, which are cast integrally with the structural floor slab 200. In other words, the top slab 16 of the machine room includes the bottom slab portion of the composite floor slab, which is integrally fabricated with the machine room structure. At the construction site, the precast composite slab 52 on top of the machine room structure directly serves as the bottom formwork of the structural floor slab 200, becoming part of the structural floor slab 200. After the precast composite slab 52 is poured into the structural floor slab 200, a single slab bears the load. The truss reinforcement bars ensure a strong bond between the precast bottom slab and the precast composite slab 52, allowing the top slab 16 of the machine room to participate in the structural load-bearing process.

[0031] In the third scenario, the top opening of the computer room enclosure cylinder 1 is provided, and the top solid surfaces of the computer room enclosure cylinder 1, the first end cap 21, and the second end cap 22 constitute the connection end face; the connection structure 5 includes a pre-embedded connector, which is pre-embedded in the computer room enclosure cylinder 1, the first end cap 21, and the second end cap 22, and protrudes upward from the connection end face; the part of the pre-embedded connector protruding from the connection end face becomes an integral structure with the concrete structural floor slab 200 when the concrete structural floor slab 200 is poured.

[0032] For example, the pre-embedded connectors include one or more of the following: U-shaped hoop 53, spur bar 54, and stud 55, see [reference]. Figure 11 The U-shaped hoop 53 has its closed U-shaped end facing upwards; the exposed portion of the reinforcing bar 54 is bent outwards at a 90° angle; or, two rows of reinforcing bars 54 are used to form a hoop, with one row bent inwards at a 90° angle and the other row bent outwards at a 90° angle. The exposed portions of the U-shaped hoop 53 and the reinforcing bar 54 meet the anchorage length requirements. Taking the setting of the reinforcing bar 54 as an example, the construction process is as follows: During the formwork support process at the construction site, the machine room structure is first positioned, and then formwork needs to be erected to cover the opening at the top of the machine room. Structural concrete slabs are poured on the erected formwork, and the reinforcing bars 54 of the machine room side walls are anchored into the structural floor slab 200 for a secure connection.

[0033] The fourth case, such as Figure 22 As shown, the connecting structure 5 includes a first steel plate 56, a second steel plate 57, and a first angle steel 58. The first steel plate 56 is provided on the top outer wall surface of the machine room enclosure cylinder 1, the first end cap 21, and the second end cap 22. A second steel plate 57 is pre-embedded at a corresponding position on the bottom surface of the structural floor slab 200. The two vertical steel planes of the first angle steel 58 are welded to the first steel plate 56 and the second steel plate 57 respectively to achieve the fixed suspension of the machine room structure 100. In this case, this connecting structure 5 can be used regardless of whether the machine room enclosure cylinder 1 has a top plate 16.

[0034] In the fifth scenario, the machine room enclosure cylinder 1 has a top slab 16, which is a section of the structural slab. The top slab 16 and the machine room enclosure cylinder 1 are integrally manufactured. Horizontal reinforcing bars 541 are pre-reserved on the sides of the top slab 16, and these horizontal reinforcing bars 541 are cast integrally with the surrounding structural floor slabs 200. Before the surrounding structural floor slabs 200 are poured on the construction site, the machine room structure is first positioned, and it is connected to the surrounding floor slab structure through the horizontal reinforcing bars 541 on the sides. The top slab 16 of the machine room participates in the load-bearing capacity of the entire structural floor slab 200.

[0035] In this embodiment, the equipment room enclosure cylindrical body 1 is an integral structure cast using a vertical molding process; alternatively, it can be produced using a centrifugal method. For example, the equipment room enclosure cylindrical body 1 adopts a cylindrical cuboid structure with planar dimensions of 2550mm*2750mm and a height of 1250mm, achieving a highly integrated and compressed space while accommodating different types of fan configurations. Furthermore, multiple equipment room enclosure cylindrical bodies 1 can be connected in series to form modular groups for use by multiple fan units.

[0036] In this embodiment, the computer room maintenance door 3 is a double door. The two maintenance doors, the maintenance door and the computer room enclosure cylinder 1, and the computer room enclosure cylinder 1 and its two side first end caps 21 and second end caps 22 all employ an inlaid structure with no through seams. For example, the first opening end 13 and the second opening end 14 of the computer room enclosure cylinder 1 are each provided with a first recess 131, and the first end cap 21 and the second end cap 22 are installed and fixed within the first recess 131. The first side wall 11 or the second side wall 12 is provided with a second recess 111, and the computer room maintenance door 3 is rotatably installed within the second recess 111 via a hinge assembly 31.

[0037] In this embodiment, the hinge assembly 31 can both bear a large load and enable the machine room maintenance door 3 to rotate and open / close. Specifically, see... Figure 9 The hinge assembly 31 includes a hinge pin 311, a pivot washer 312, and a cylinder hinge support 313. All three components are made of metal. The hinge pin 311 and the cylinder hinge support 313 are arranged in pairs, one above the other. The embedded portion of the hinge pin 311 is embedded in the machine room maintenance door 3, and the embedded portion of the cylinder hinge support 313 is embedded in the side wall where the second groove 111 is located. The insertion portion of the hinge pin 311 can be inserted into the cylinder hinge support 313 and can rotate. A pivot washer 312 is provided between the hinge pin 311 and the cylinder hinge support 313. Furthermore, to improve the load-bearing strength of the hinge assembly 31, both the hinge pin 311 and the cylinder hinge support 313 are provided with two reinforcing metal ribs 314. In other words, two hinge pins 311 are pre-embedded in the machine room access door 3, one above the other, and are used in conjunction with the hinge supports also pre-embedded in the machine room enclosure cylinder 1. Both the hinge pins 311 and the cylinder hinge supports 313 are provided with two reinforcing metal ribs 314, which are located on both sides to increase the connection contact surface and increase the moment of inertia of the structural section, thus ensuring structural strength. A pivot washer 312 is provided between the hinge pins 311 and the cylinder hinge supports 313 to reduce the friction generated by the rotation of the access door under gravity load, allowing the access door to be opened quickly and easily even if it has not been opened for a long time and there is metal oxidation.

[0038] Since the maintenance door 3 of the computer room needs to be opened for each maintenance, it needs to be easy to open and still achieve a fireproof sealing effect when closed. This can be achieved by installing a fireproof sealing aerogel strip 17 on the contact surface between the maintenance door and the main body of the computer room structure 100. Specifically, such as Figure 25 As shown, at least one fire-resistant aerogel strip 17 is provided between the groove wall of the second groove 111 and the inner wall of the computer room access door 3. By providing a fire-resistant aerogel strip between the computer room access door 3 and the main structure of the computer room, it is effectively prevented that smoke from the outside can enter the computer room through the gap between the computer room access door 3 and the main structure of the computer room in the event of a fire. Preferably, there are two fire-resistant aerogel strips 17, one on the groove wall of the second groove 111 and one on the inner wall of the computer room access door 3, and the fire-resistant aerogel strips 17 are made of SiO2 aerogel material.

[0039] In this embodiment, both the first end cap 21 and the second end cap 22 have outwardly protruding smoke inlets 23, and the port of the smoke inlet 23 is provided with a duct connection flange 231, which is used to connect with the flange of the ventilation duct 300.

[0040] To enhance the strength of the duct connection flange 231, a reinforcing structure is provided at the connection end of the duct connection flange 231, such as... Figures 6 to 8 As shown, the reinforcing structure includes a second angle steel 2311 and a U-shaped tie bar 2312. The U-shaped tie bar 2312 is welded to the second angle steel 2311 and is embedded in the duct connection flange 231 and the smoke exhaust port 23 to enhance the connection strength between the duct connection flange 231 and the smoke exhaust port 23. The duct connection flange 231 has a square structure, and the second angle steel 2311 is located at the right angle of the duct connection flange 231. The two right-angled outer planes of the second angle steel 2311 are basically coplanar with the two right-angled planes of the duct connection flange 231. The second angle steel 2311 has a through hole, and a connecting bolt 2313 is reserved in the through hole. The connecting bolt 2313 is used to connect the flange of the ventilation duct 300.

[0041] Furthermore, a plurality of stiffening ribs 2314 are provided along the length direction of the second angle steel 2311. The stiffening ribs 2314 are steel plates, which are arranged perpendicular to the length direction of the second angle steel 2311. Preferably, the thickness of the steel plates is 3mm and the spacing is 200mm.

[0042] Furthermore, there are multiple U-shaped tie bars 2312, which are evenly arranged along the length of the second angle steel 2311 at a spacing of 200mm; preferably, the U-shaped tie bars 2312 are made of HPB300 steel bars with a diameter of 6mm bent.

[0043] Furthermore, a corrugated pipe 400 is connected between the smoke intake / exhaust port 23 on the end cover side wall 2 and the ventilation duct 300. Both ends of the corrugated pipe 400 are connected to the duct at the smoke intake / exhaust port 23 and the flange of the ventilation duct 300, respectively. Because the corrugated pipe 400 has a certain degree of expansion and contraction, it can allow for a certain distance of movement at the connection point under special circumstances such as earthquakes or strong vibrations, preventing breakage at the connection point due to rigidity, thereby ensuring the normal operation of the computer room.

[0044] In this embodiment, the first end cap 21 and the second end cap 22 are installed on the first open end 13 and the second open end 14 of the computer room enclosure cylinder 1 by field assembly. In order to facilitate installation and reduce the use of fixing accessories, protrusions / grooves are provided at the groove positions of the computer room enclosure cylinder 1 and at the edge positions of the end caps. The cooperation of the protrusions and grooves forms a self-locking structure, thereby realizing the fixation of the position of the two end caps after installation.

[0045] Figure 26 A self-locking structure is shown: the top of the first groove 131 is provided with a T-shaped slot 1311, and the bottom of the first groove 131 is provided with a horizontally placed F-shaped slot 1312; the first groove 131 has a vertical groove wall and a horizontal groove wall, the T-shaped slot 1311 is provided on the vertical groove wall at the top, and the F-shaped slot 1312 is provided on the horizontal groove wall at the bottom; the upper ends of the first end cap 21 and the second end cap 22 are provided with T-shaped protrusions 211 that are adapted to the T-shaped slots 1311, and the lower ends of the first end cap 21 and the second end cap 22 are provided with protrusions 211 that are adapted to the horizontally placed F-shaped slots 1312. The Y-shaped protrusion 212 is adapted; when the upper surfaces of the first end cap 21 and the second end cap 22 abut against the horizontal groove wall at the top of the first groove 131, the lowest end of the T-shaped protrusion 211 is higher than the protruding part of the F-shaped groove 1312. The first end cap 21 and the second end cap 22 can be moved horizontally towards the inside of the computer room until the T-shaped protrusion 211 moves above the T-shaped groove 1311. Then, the first end cap 21 and the second end cap 22 fall down, the T-shaped protrusion 211 can be inserted into the T-shaped groove 1311, and the Y-shaped protrusion 212 can be inserted into the horizontally placed F-shaped groove 1312. Install the first end cover 21 and the second end cover 22 in sequence. For example, when installing the first end cover 21, first lift the first end cover 21 as a whole. The upper surface of the first end cover 21 abuts against the horizontal groove wall of the first cylinder of the computer room enclosure cylinder 1. Move it horizontally from the outside to the inside of the computer room enclosure cylinder 1 until the T-shaped protrusion 211 of the first end cover 21 moves horizontally to the top of the T-shaped slot 1311 of the computer room enclosure cylinder 1. Then slowly lower the first end cover 21. Under gravity, the Y-shaped protrusion 212 of the first end cover 21 is inserted into the F-shaped slot 1312 of the computer room enclosure cylinder 1. The upper and lower ends of the first end cover 21 are completely closed, and the installation of the first end cover 21 is completed.

[0046] Figures 27 to 28Another self-locking structure is shown: the top of the first groove 131 is provided with a T-shaped slot 1311, and the bottom of the first groove 131 is provided with a wedge-shaped groove 1313; the top of the first groove 131 has a vertical groove wall and a horizontal groove wall, and the T-shaped slot 1311 is provided on the vertical groove wall at the top; optionally, the wedge-shaped groove 1313 can be provided on the horizontal groove wall at the bottom; the upper ends of the first end cap 21 and the second end cap 22 are provided with T-shaped protrusions 211 that are adapted to the T-shaped slot 1311, and the lower ends of the first end cap 21 and the second end cap 22 are provided with wedge-shaped grooves 1313 that are adapted to the wedge-shaped grooves 1313. The wedge-shaped end 213 has a wedge-shaped inclined surface. When the upper surfaces of the first end cap 21 and the second end cap 22 abut against the horizontal groove wall at the top of the first groove 131, the lowest end of the T-shaped protrusion 211 is higher than the outer opening of the wedge-shaped groove 1313. The first end cap 21 and the second end cap 22 can be moved towards the interior of the machine room until the T-shaped protrusion 211 moves above the T-shaped groove 1311. Then, the first end cap 21 and the second end cap 22 fall down, and the T-shaped protrusion 211 can be inserted into the T-shaped groove 1311, and the wedge-shaped end 213 can be inserted into the wedge-shaped groove 1313. Preferably, the inclined surface angle of the wedge-shaped groove 1313 is θ, where θ = 8.53°. In other words, wedge-shaped ramps are provided at the lower ends of the machine room enclosure cylinder 1 and the two end caps. The slope of the wedge-shaped ramps is 8.53°. Under this slope, the end caps will form a self-locking mechanism and will not slide relative to each other. To facilitate the installation of the end caps by workers, the following installation method can also be adopted: For example, place the machine room enclosure cylinder 1 on the ground, with the base plate 15 on the ground. When installing the first end cap 21, lift the first end cap 21 so that its lower end is close to the wedge-shaped groove 1313 at the lower end of the machine room enclosure cylinder 1, and push it horizontally into the machine room enclosure cylinder 1. When pushing, there is no need to lift the whole thing. Under the action of gravity, the wedge-shaped end 213 falls into the wedge-shaped groove 1313. The falling height of the wedge-shaped end 213 is the falling height of the T-shaped slot 1311. This installation method only requires a small amount of force to easily push the wedge-shaped groove 1313, forming a self-locking mechanism, and also has a certain limiting function.

[0047] To further lock the first end cap 21 and the second end cap 22, arrow-shaped pins 24 are provided at the positions where the first end cap 21 and the second end cap 22 are embedded in the first groove 131. Simultaneously, a pre-embedded buckle 18 is provided on the inner wall surface of the machine room enclosure cylinder 1 to engage with the arrow-shaped pins 24. (See [reference]). Figure 23 Optionally, the embedded buckle 18 can be a unidirectional deformable metal embedded buckle 18. Further, a sealing strip is provided at the connection between the machine room enclosure cylinder 1 and the end cover.

[0048] In one alternative embodiment, the first end cap 21 and the second end cap 22 are connected to the open ends of the machine room enclosure cylinder 1 using a mortise and tenon joint structure; bolts can be used to help lock the mortise and tenon joint connection. Alternatively, the first end cap 21 and the second end cap 22 are directly connected to the machine room enclosure cylinder 1 using expansion bolts 25, such as... Figure 21 As shown.

[0049] Traditional computer room enclosure structures typically consist of a steel frame combined with metal / color steel / concrete blocks, where decoration and structure are often considered separately, requiring additional fire protection measures. Ultra-high performance concrete (UHPC), however, possesses high strength, high durability, and strong plasticity (decorative properties), and also exhibits a certain degree of fire resistance. Therefore, in this embodiment, the computer room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the computer room access door 3 can all be prefabricated using UHPC material. This results in a thin, lightweight structure without any additional framework. The computer room structure utilizes the UHPC shell, simultaneously providing enclosure, decoration, structural load-bearing, and some fire protection functions.

[0050] UHPC itself has a certain degree of fire resistance, better than ordinary concrete, but it conducts heat quickly, and its strength decreases at high temperatures. Therefore, to further improve its fire resistance, see [reference needed]. Figure 24 A SiO2 aerogel layer 6 is provided on the inner walls of the computer room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the computer room access door 3, forming a composite structure to achieve a fire resistance requirement of at least 2 hours. In this embodiment, the computer room structure 100 utilizes a UHPC shell as a robust substrate and external protective layer, with the aerogel layer located internally. This effectively blocks heat transfer to the structural core, protecting internal equipment and maintaining structural integrity in case of fire. Furthermore, by placing the SiO2 aerogel layer 6 on the inner wall of the computer room, the aerogel layer is less susceptible to mechanical damage, which is superior to external bonding or sandwich structures. This embodiment utilizes the structural strength and initial fire barrier effect of UHPC, combined with the superior thermal insulation performance of the SiO2 aerogel layer 6, to achieve a fire resistance effect of "1+1>2".

[0051] When preparing the components such as the room enclosure cylinder 1, the first end cap 21, the second end cap 22, and the room inspection door 3, the SiO2 aerogel layer 6 is directly laid on one side of the inner wall of the room corresponding to each component; or, after the overall assembly of the room structure 100 is completed on site, the SiO2 aerogel layer 6 is laid on the inner wall of the room.

[0052] The computer room structure provided in this embodiment is prefabricated using ultra-high performance concrete (UHPC) material for its main structure. At the same time, a SiO2 aerogel layer is set on the inner wall of the computer room. By utilizing the structural strength and initial fire barrier function of UHPC, combined with the super thermal insulation performance of aerogel, a fire protection effect of "1+1>2" is formed. It can effectively block the heat transfer to the core of the structure, protect the internal equipment and maintain the integrity of the structure under fire, and achieve the fire protection requirement of at least 2 hours.

[0053] In this embodiment, see Figures 31 to 32 The computer room structure 100 has an internal smoke exhaust pipe 8. The two ends of the internal smoke exhaust pipe 8 are respectively connected to the smoke intake and exhaust port 23 on the first end cover 21 and the smoke intake and exhaust port 23 on the second end cover 22. The fan 4 is installed on the internal smoke exhaust pipe 8, and the internal smoke exhaust pipe 8 is also equipped with a cooling mechanism.

[0054] Specifically, the internal smoke exhaust pipe 8 includes two sections of smoke exhaust duct 81. The fan 4 is located inside the cover 41. The cover 41 has an air inlet and an air outlet. The air inlet and the air outlet are respectively connected to the smoke suction and exhaust port 23 on the first end cover 21 and the smoke suction and exhaust port 23 on the second end cover 22 through a section of smoke exhaust duct 81.

[0055] Furthermore, the internal smoke exhaust duct 8 also includes two flexible connecting pipes 82. The air inlet and air outlet of the hood 41 are respectively connected to the smoke exhaust ducts 81 on both sides through a flexible connecting pipe 82. The use of flexible connections can reduce noise.

[0056] In this embodiment, one or more of the following cooling mechanisms are provided on the internal smoke exhaust pipe 8: The first type of cooling mechanism includes a motor cooling system configured to dissipate heat and cool the motor 43 of the fan 4. Specifically, the motor cooling system is located at the rear end of the motor 43 of the fan 4. The motor cooling system uses an internal circulation fan impeller 44. The motor housing of the motor 43 has a guide pipe that communicates with the outside. Specifically, the motor housing has a guide hole 45, which is connected to the guide pipe (not shown in the figure). The bottom plate 15 of the machine room enclosure cylinder 1 has a through hole, and the guide pipe extends out of the through hole on the bottom plate 15 and communicates with the outside. In this way, airflow exchange between the inside of the motor housing and the outside is achieved through the guide pipe. When the fan 4 is running, fluid exchange with the outside is achieved through the guide pipe communicating with the motor housing, thereby achieving forced ventilation cooling of the fan motor 43. By setting up a motor cooling system with an internal circulation fan impeller 44 at the rear end of the motor 43 of the fan 4, the fan 4 operates and the motor 43 is cooled by forced ventilation through the guide hole 45, ensuring that the motor 43 can work for a long time and improving the service life of the fan.

[0057] The second type of cooling mechanism includes a water spray system 9, which rapidly cools the flue gas entering the internal exhaust pipe 8, especially the flue gas entering the fan 4. The water spray system 9 has a spray pipe 91 and a drain pipe 92. The inlet end of the spray pipe 91 is connected to a water source, and the outlet end of the spray pipe 91 is equipped with multiple nozzles 93. The bottom of the internal exhaust pipe 8 is equipped with a drain outlet, which is located at the bottom of the fan 4's cover 41. A drain drain is installed at the drain outlet. The bottom plate 15 of the machine room enclosure cylinder 1 is equipped with a drain outlet 151. The two ends of the drain pipe 92 are connected to the drain outlet and the drain outlet 151, respectively. The drain outlet 151 is connected to the building drainage pipe 92 through an external water pipe.

[0058] In one alternative embodiment, the nozzles 93 are arranged inside the shroud 41 of the fan 4, and multiple nozzles 93 can spray water toward the fan from different directions; and / or, the nozzles 93 are arranged in the upstream exhaust duct 81 of the fan. Here, upstream refers to the relative position in the direction of flue gas flow; the direction facing the flue gas is upstream, and the direction away from the flue gas after it flows is downstream, that is, the area between the nozzles 93 and the smoke inlet on the end cover wall 2.

[0059] A water spray system 9 is used to cool the flue gas entering the exhaust pipe 8 inside the machine room. The spray water pipe 91 has a diameter of DN32 and is made of plastic-lined steel pipe. The water pressure of the spray water pipe 91 is not less than 0.1MPa. The nozzle end of the spray water pipe 91 uses a closed-type temperature-sensing nozzle 93 with an operating temperature of 68℃. The flow rate of a single nozzle 93 is 2 L / s, and four nozzles 93 can be installed. A DN50 drain is installed at the bottom of the fan shroud 41, which is connected to the building drainage pipe 92 via a quick connector to lead to the drainage point. The water spray system 9 can reduce the flue gas temperature to 70℃, ensuring long-term operation of the fan. For example, reducing the flue gas temperature from 280℃ to 70℃ with an air volume of 36000m³ / h... 3 Based on the calculation of the / h fan, the required heat dissipation for flue gas is 2545 kW. Taking a cooling nozzle 93 with a single flow rate of 2 L / s and a total of 4 nozzles 93 as an example, without considering the latent heat of vaporization, it can provide 2675 kW of heat absorption, which can meet the flue gas cooling requirements and ensure the long-term operation of the fan; by spraying water to cool down, the temperature inside the machine room can be kept below 70℃, which can meet the long-term reliable operation of the electrical compartment 7.

[0060] In this embodiment, as Figure 29 As shown, the fan 4 is suspended in the machine room by the anti-vibration bracket 42. The anti-vibration bracket 42 is configured to reduce vibration and ensure that the fan maintains stable operation under special conditions such as earthquakes or strong vibrations.

[0061] Specifically, see Figure 30The seismic bracing 42 includes a spring 421, a metal adapter 422, a first vertical metal rod 423, a support plate 424, and a second vertical metal rod 425. The metal adapter 422 is hollow and has a top wall and a bottom wall. The top wall has a first through hole, and the bottom wall has a second through hole. The first vertical metal rod 423 passes through the first through hole and can move along the centerline of the first through hole. The top of the first metal rod is fixedly connected to the top plate 16 of the machine room or to the structural floor slab 200. The first metal rod is fixedly connected to the center of the support plate 424. The spring 421 is sleeved on the first metal rod, with the top end of the spring 421 abutting against the top wall and the bottom end of the spring 421 abutting against the support plate 424. The top end of the second vertical metal rod 425 passes through the second through hole and is fixedly connected to the bottom wall by a nut. The bottom end of the second vertical metal rod 425 is connected to the cover 41 of the fan 4. The axes of the first vertical metal rod 423 and the second vertical metal rod 425 are collinear.

[0062] In one alternative embodiment, the machine room enclosure cylinder 1, the first end cap 21, and the second end cap 22 can all be made of 120mm thick ultra-high performance UHPC concrete. By setting a SiO2 aerogel layer 6 on the inner wall surface, its fire resistance limit is not less than 2 hours. The concrete outer wall has the characteristics of high strength, high toughness, and the same lifespan as the main structure.

[0063] In one alternative embodiment, the computer room maintenance door 3 is a fire door of F2 level or above, or it can be made of ultra-high performance UHPC concrete, and the inner wall surface is provided with a SiO2 aerogel layer 6.

[0064] In one alternative embodiment, the two ends of the machine room structure 100 perpendicular to the flue gas flow direction can be set to an arc shape or a circle shape, that is, the right angle is changed to an arc structure to effectively save space; in addition, a 600mm wide maintenance passage is left on both sides of the fan in the machine room structure 100 for daily inspection and maintenance.

[0065] In this embodiment, the prefabricated integrated fire smoke exhaust fan room structure is also provided with an electrical compartment 7, which is arranged in the space between the inner wall of the fan room enclosure cylinder 1 and the outer wall of the internal smoke exhaust pipe 8.

[0066] In one alternative embodiment, a fire detection system is installed in the computer room, including a smoke detector. The smoke detector detects fire alarm signals in the computer room. A fire alarm telephone is installed in the computer room, and the fire signal is connected to the automatic fire alarm system in the building.

[0067] In one alternative embodiment, the computer room is equipped with a lighting system, which includes lighting fixtures and lighting switch to meet the requirements of normal lighting and backup lighting in the computer room. The power supply is provided by the fire emergency lighting in the fire compartment of the building.

[0068] In one alternative embodiment, the prefabricated integrated fire smoke exhaust fan room structure is also equipped with a power distribution system. The fan power distribution circuit interface is reserved in the fan room and connected to the smoke exhaust fan control box in the fire compartment inside the building to provide power to the fan.

[0069] Compared with the prior art, the prefabricated integrated fire smoke exhaust fan room structure provided in this embodiment can achieve the following beneficial effects: 1. The fire ventilation equipment room, constructed using precast concrete components, provides a new structural form and approach to improve the utilization efficiency of underground parking garages. It solves the problems of the difficulty in flexibly arranging fully cast-in-place fire exhaust equipment rooms and the large amount of building area they occupy. The equipment room structure of this invention can be hoisted above the parking spaces in the underground parking lot while maintaining a clear height of not less than 2200mm. It does not occupy building area or change the original function, and has very considerable economic benefits.

[0070] 2. The various parts of the computer room structure adopt a prefabricated component system and prefabrication assembly technology to achieve factory standardization, industrialization, and integrated use functions. This not only ensures production quality and has strong structural stability, but also allows for customization of different appearance structures and integrated decorative functions, which greatly improves the quality and efficiency of the construction process.

[0071] 3. The application of the prefabricated integrated fire smoke exhaust fan room structure of this invention does not affect the progress of other main construction processes. It can be installed and set up at any stage. If the plan is changed, it can greatly save economic costs, improve construction efficiency, and accelerate the overall construction progress. Implementing this invention not only reduces the operating and renovation costs of buildings, but also puts the concept of "green, healthy, and intelligent" livability into practice from the very core of the building, truly supporting the continuous evolution and development of "good houses" and "good communities" in the coming decades.

[0072] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A prefabricated integrated fire-fighting smoke exhaust fan room structure, characterized in that, include: The computer room enclosure cylinder (1) has a base plate (15) and a first side wall (11) and a second side wall (12) connected to the base plate (15) and arranged vertically and parallel to each other. The two ends of the computer room enclosure cylinder (1) in the horizontal direction have a first opening end (13) and a second opening end (14) arranged opposite to each other. The end cap sidewall (2) has a first end cap (21) and a second end cap (22), which are respectively provided at the first opening end (13) and the second opening end (14); the first end cap (21) and the second end cap (22) are each provided with a smoke inlet (23), which is used to connect to the ventilation duct (300); The machine room maintenance door (3) is located on the first side wall (11) or the second side wall (12) and can be opened and closed; The fan (4) is located in the internal space formed by the cylinder body (1) of the machine room enclosure and the first end cover (21) and the second end cover (22); Among them, the machine room enclosure cylinder (1), the first end cover (21), the second end cover (22), and the machine room maintenance door (3) are all made of precast concrete structure.

2. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 1, characterized in that, It is also provided with a connecting structure (5), through which the prefabricated integrated fire smoke exhaust fan room structure is suspended below the structural floor slab (200).

3. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 2, characterized in that, The machine room enclosure cylinder (1) is also provided with a top plate (16); The top plate (16) is provided with a plurality of first connection holes (1601); the connection structure (5) includes a connecting screw, the top end of the connecting screw is detachably connected to or pre-embedded in the structural floor slab (200), and the bottom end of the connecting screw can be aligned with and pass through the first connection hole (1601) on the top plate (16), and locked with a nut inside the computer room to realize the mounting of the computer room structure.

4. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 3, characterized in that, The connecting screw is the first fixing bolt. Multiple first fixing bolts extending downward are pre-embedded at corresponding positions on the structural floor slab (200). The first fixing bolts can be aligned with and pass through the first connecting hole (1601) on the top plate (16). They are locked with nuts to realize the mounting of the machine room structure. or, The connecting screw is a hook screw (51). The top of the hook screw (51) is provided with a hook part (511). A hook mating part that cooperates with the hook part (511) is pre-embedded on the bottom surface of the structural floor slab (200). The bottom end of the hook screw (51) can be aligned with and pass through the first connecting hole (1601) on the top plate (16). It is locked with a locking nut (512) to realize the mounting of the machine room structure.

5. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 1, characterized in that, The machine room enclosure cylinder (1) is an integral structure cast by vertical molding process; or, it is produced by centrifugal method.

6. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 1, characterized in that, The first opening end (13) and the second opening end (14) of the machine room enclosure cylinder (1) are both provided with a first groove (131), and the first end cap (21) and the second end cap (22) are installed and fixed in the first groove (131); A second recess (111) is provided on the first side wall (11) or the second side wall (12), and the machine room maintenance door (3) is rotatably installed in the second recess (111) through the hinge assembly (31); Preferably, the hinge assembly (31) includes a hinge pin (311), a pivot washer (312), and a cylinder hinge support (313). The hinge pin (311) and the cylinder hinge support (313) are arranged in pairs and arranged vertically. The embedded part of the hinge pin (311) is embedded in the machine room maintenance door (3), and the embedded part of the cylinder hinge support (313) is embedded in the side wall where the second groove (111) is provided. The insertion part of the hinge pin (311) can be inserted into the cylinder hinge support (313) and can rotate. A pivot washer (312) is provided between the hinge pin (311) and the cylinder hinge support (313). Preferably, both the hinge pin (311) and the cylinder hinge support (313) are provided with two reinforcing metal ribs (314).

7. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 1, characterized in that, Both the first end cap (21) and the second end cap (22) have outwardly protruding smoke inlets (23), and the smoke inlets (23) have duct connection flanges (231) at their ports. The duct connection flanges (231) are used to connect with the flanges of the ventilation duct (300).

8. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 7, characterized in that, The connection end of the duct connection flange (231) is provided with a reinforcing structure, which includes a second angle steel (2311) and a U-shaped tie bar (2312). The U-shaped tie bar (2312) is welded to the second angle steel (2311), and the U-shaped tie bar (2312) is embedded in the duct connection flange (231) and the smoke inlet (23) to enhance the connection strength of the duct connection flange (231) and the smoke inlet (23). The duct connection flange (231) is a square structure, and the second angle steel (2311) is located at the right angle of the duct connection flange (231). The second angle steel (2311) is provided with a through hole, and a connecting bolt (2313) is reserved in the through hole. The connecting bolt (2313) is used to connect the flange of the ventilation duct (300). Preferably, a plurality of stiffening ribs (2314) are provided along the length direction of the second angle steel (2311), and the stiffening ribs (2314) are steel plates arranged perpendicular to the length direction of the second angle steel (2311); Preferably, there are multiple U-shaped tie bars (2312), and the multiple U-shaped tie bars (2312) are evenly arranged along the length direction of the second angle steel (2311) at a spacing of 200mm.

9. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 6, characterized in that, The first groove (131) has a T-shaped groove (1311) at the top and a horizontal F-shaped groove (1312) at the bottom; the first groove (131) has a vertical groove wall and a horizontal groove wall, the T-shaped groove (1311) is located on the vertical groove wall at the top and the F-shaped groove (1312) is located on the horizontal groove wall at the bottom; The upper ends of the first end cap (21) and the second end cap (22) are provided with T-shaped protrusions (211) that are adapted to the T-shaped slot (1311), and the lower ends of the first end cap (21) and the second end cap (22) are provided with Y-shaped protrusions (212) that are adapted to the horizontal F-shaped slot (1312). When the upper surfaces of the first end cap (21) and the second end cap (22) abut against the horizontal groove wall at the top of the first groove (131), the lowest end of the T-shaped protrusion (211) is higher than the protruding part of the F-shaped groove (1312). The first end cap (21) and the second end cap (22) can move horizontally toward the inside of the computer room until the T-shaped protrusion (211) moves above the T-shaped groove (1311). Then, the first end cap (21) and the second end cap (22) fall down, the T-shaped protrusion (211) can be inserted into the T-shaped groove (1311), and the Y-shaped protrusion (212) can be inserted into the horizontally placed F-shaped groove (1312).

10. The prefabricated integrated fire-fighting smoke exhaust fan room structure according to claim 6, characterized in that, The top of the first groove (131) is provided with a T-shaped groove (1311), and the bottom of the first groove (131) is provided with a wedge-shaped groove (1313); the top of the first groove (131) has a vertical groove wall and a horizontal groove wall, and the T-shaped groove (1311) is provided on the vertical groove wall at the top. The upper ends of the first end cap (21) and the second end cap (22) are provided with a T-shaped protrusion (211) that matches the T-shaped slot (1311), and the lower ends of the first end cap (21) and the second end cap (22) are provided with a wedge-shaped end (213) that matches the wedge-shaped groove (1313), and the wedge-shaped end (213) has a wedge-shaped inclined surface; When the upper surfaces of the first end cap (21) and the second end cap (22) abut against the horizontal groove wall at the top of the first groove (131), the lowest end of the T-shaped protrusion (211) is higher than the outer groove opening of the wedge-shaped groove (1313). The first end cap (21) and the second end cap (22) can be moved horizontally towards the inside of the machine room, the T-shaped protrusion (211) can be inserted into the T-shaped groove (1311), and the wedge-shaped end (213) can be inserted into the wedge-shaped groove (1313).

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