Cooling type assembled fire ventilation fan room structure

Abstract

The application relates to a cooling type assembled fire-fighting ventilation fan room structure, which comprises a room wall cylinder body and a fan. The room wall cylinder body is provided with a bottom plate, a first side wall and a second side wall arranged vertically and in parallel. The room wall cylinder body is provided with a first open end and a second open end at two ends in the horizontal direction. The first open end and the second open end are respectively provided with a first end cover and a second end cover. The first end cover and the second end cover are both provided with smoke suction and exhaust ports used for being connected with ventilation pipelines. An internal smoke exhaust pipeline is arranged in the internal space. The two ends of the internal smoke exhaust pipeline are respectively connected with the smoke suction and exhaust ports on the first end cover and the second end cover. The fan is arranged on the internal smoke exhaust pipeline. The internal smoke exhaust pipeline is further provided with a cooling mechanism. The application improves the operation efficiency of the fire-fighting fan, prolongs the service life of the fire-fighting fan, effectively saves the area of the fan room and provides higher quality use requirements.

Description

Technical Field

[0001] This application belongs to the technical field of prefabricated buildings and fire exhaust fan rooms, specifically relating to a cooling type prefabricated fire ventilation 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.

[0004] With the rapid development of building industrialization and intelligent manufacturing, the application of prefabricated ventilation rooms has been promoted. With its advantages of efficient construction, controllable quality and compact space, it is highly favored in large public buildings and industrial buildings.

[0005] However, existing prefabricated computer rooms still face the following shortcomings in practice: 1. The equipment exhibits significant vibration and noise during operation, which not only restricts the full performance of the system but also affects the green quality of the building and the user experience.

[0006] 2. Existing prefabricated computer rooms do not have additional cooling measures. In the event of a fire, the high temperature of the smoke drawn in will adversely affect the normal operation of the fans. In fact, the high temperature may even damage the fans, causing them to fail and compromising the reliability of the computer room. Utility Model Content

[0007] Based on the above analysis, the present invention aims to provide a cooling-type prefabricated fire ventilation room structure to solve one or more of the above-mentioned problems existing in the prior art.

[0008] The purpose of this utility model is achieved as follows: A cooling-type prefabricated fire ventilation room structure includes a room enclosure cylinder and a fan. The room enclosure cylinder has a bottom plate, a first side wall and a second side wall arranged vertically in parallel, and a first open end and a second open end at the two ends in the horizontal direction, respectively. A first end cover and a second end cover are installed on the first open end and the second open end, respectively. Both the first end cover and the second end cover are provided with smoke intake and exhaust ports, which are used to connect to ventilation ducts. The machine room enclosure 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 ports on the first end cover and the second end cover, respectively. The fan is located on the internal smoke exhaust pipe, which is also equipped with a cooling mechanism.

[0009] Furthermore, it also includes a computer room maintenance door, which is located on the first or second side wall; wherein, 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 or ultra-high performance concrete.

[0010] Furthermore, the internal smoke exhaust duct includes two sections of smoke exhaust duct, the fan is located inside the hood, the hood has an air inlet and an air outlet, the air inlet and the air outlet are respectively 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 through a section of smoke exhaust duct.

[0011] Furthermore, the internal smoke exhaust duct also includes two flexible connecting pipes. The air inlet and outlet of the hood are respectively connected to the smoke exhaust ducts on both sides through a flexible connecting pipe.

[0012] Furthermore, natural ventilation openings are provided on the side walls of the computer room enclosure for normal ventilation. Above the natural ventilation openings are air vent baffles, which are positioned above the natural ventilation openings via shape memory alloy springs. When a fire occurs and the computer room temperature reaches 70°C, the shape memory alloy springs melt and the air vent baffles fall down, closing the natural ventilation openings.

[0013] Furthermore, the cooling mechanism includes a motor cooling system configured to dissipate heat and cool the motor of the fan; the motor cooling system is located at the rear end of the motor of the fan, the motor cooling system adopts an internal circulation fan impeller, and the motor housing of the motor is provided with a guide pipe that communicates with the outside. When the fan is running, fluid exchange with the outside is carried out through the guide pipe to achieve forced ventilation cooling of the motor.

[0014] Furthermore, the cooling mechanism includes a water spray system, which has spray pipes and drain pipes. The inlet end of the spray pipe is connected to a water source, and the outlet end of the spray pipe is equipped with multiple nozzles. The bottom of the internal smoke exhaust pipe is equipped with a drain outlet, which is fitted with a floor drain. The bottom plate of the machine room enclosure cylinder is equipped with a drain outlet. The two ends of the drain pipe are connected to the drain outlet and the drain outlet, respectively. The drain outlet is connected to the building drainage pipe through an external water pipe.

[0015] Furthermore, the nozzles are arranged inside the shroud, and multiple nozzles can spray water toward the fan from different directions; and / or, the nozzles are arranged in the exhaust duct upstream of the fan.

[0016] Furthermore, the drain outlet is located at the bottom of the fan's casing.

[0017] Furthermore, an electrical compartment is also provided, which is located in the space between the inner wall of the machine room enclosure and the outer wall of the internal exhaust pipe.

[0018] Compared with the prior art, the cooling-type prefabricated fire ventilation room structure provided by this utility model can achieve at least one of the following beneficial effects: 1. The computer room is equipped with air, water and electricity interfaces that meet fire protection requirements. Multiple cooling methods are used in the computer room to improve the operating efficiency of the fire-fighting fans and increase their service life. This can effectively save computer room space and provide higher quality usage. Moreover, the operation is characterized by low vibration, low noise and safety and reliability, which can provide higher quality usage.

[0019] 2. It can be installed on the roof, occupying less than 2.2m of height in the computer room, thus not affecting the computer room area; it can also be hoisted under the ceiling of a tall space, without occupying ground space, or placed on the ground in corners or other ineffective gray spaces.

[0020] 3. 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

[0021] 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.

[0022] Figure 1 Schematic diagram of the cross-sectional structure of the prefabricated fire ventilation room with cooling function provided by this utility model. Figure 1 ; Figure 2 Schematic diagram of the cross-sectional structure of the prefabricated fire ventilation room with cooling function provided by this utility model. Figure 2 ; Figure 3 Structural diagram of the cooling-type prefabricated fire ventilation room structure provided by this utility model Figure 1 ; Figure 4A schematic diagram showing the disassembly of the end cover wall and the open state of the maintenance door of the cooling prefabricated fire ventilation room structure provided by this utility model. Figure 5 Schematic diagram of the structure of the computer room enclosure cylinder provided by this utility model Figure 1 ; Figure 6 Schematic diagram of the structure of the computer room enclosure cylinder provided by this utility model Figure 2 ; Figure 7 A schematic diagram of the structure of the end cap side wall with a smoke extraction port provided by this utility model; Figure 8 A schematic diagram of the hinge assembly provided by this utility model; Figure 9 A schematic diagram of the structure of the hook screw provided by this utility model; Figure 10 Structural diagrams of the four connection structures provided by this utility model; Figure 11 A schematic diagram of the connection structure provided by this utility model using a prefabricated composite plate; Figure 12 A schematic diagram of the connection structure provided by this utility model, which adopts a horizontal rib set on the top plate; Figure 13 A schematic diagram of the connection structure provided by this utility model, which adopts a rib-shaped reinforcement on the top surface of the side wall; Figure 14 A model diagram of the ventilation ducts connecting the cooling prefabricated fire ventilation room structure provided by this utility model; Figure 15 Structural diagram of the cooling-type prefabricated fire ventilation room structure provided by this utility model Figure 2 ; Figure 16 A schematic diagram of the structure of the computer room maintenance door and the main structure of the computer room provided by this utility model, showing the installation of a sealing and fireproof aerogel strip between them. Figure 17 A schematic diagram of the structure of the fan provided by this utility model, which is installed inside the machine room structure by an anti-seismic support; Figure 18 A schematic diagram of the structure of the seismic bracing provided by this utility model.

[0023] Figure label: 100. Computer room structure; 200. Structural floor slab; 300. Ventilation ducts; 1. Machine room enclosure cylinder; 11. First side wall; 111. Second groove; 12. Second side wall; 13. First opening end; 131. First 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; 19. Natural ventilation opening; 2. End cap sidewall; 21. First end cap; 22. Second end cap; 23. Smoke intake / exhaust port; 231. Duct connection flange; 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; 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; 10. Electrical Warehouse. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Example 1 A specific embodiment of this utility model discloses a cooling-type prefabricated fire ventilation room structure, hereinafter referred to as "room structure 100". Precast concrete or ultra-high performance concrete is used as the main structure of the room structure 100, and also as the external cladding material of the room structure 100; it also serves as the fireproof material of the room structure 100, achieving the integration of building structure, decoration and function.

[0028] like Figures 1 to 7 , Figures 11 to 14 As shown, the prefabricated fire ventilation room structure for cooling includes a room enclosure cylinder 1, end cap side walls 2, a room inspection door 3, and a fan 4 installed inside the room. The end cap side walls 2 include a first end cap 21 and a second end cap 22. The 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 in parallel. The two ends of the room enclosure cylinder 1 in the horizontal direction have a first open end 13 and a second open end 14 arranged opposite to each other. The first end cap 21... The first end cap 21 and the second end cap 22 are respectively provided at the first opening end 13 and the second opening end 14; both the first end cap 21 and the second end cap 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 cap 21 and the second end cap 22.

[0029] See Figures 1 to 2 The internal space of the computer room structure 100 is also equipped with 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.

[0030] 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.

[0031] 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.

[0032] In this embodiment, a natural ventilation opening 19 is provided on the cylindrical wall 1 of the computer room for normal ventilation. Specifically, a natural ventilation opening 19 is provided on the side wall of the cylindrical wall 1 for normal ventilation of the computer room. A vent baffle is provided above the natural ventilation opening 19. The vent baffle is positioned above the natural ventilation opening 19 by a shape memory alloy spring. When a fire occurs and the temperature of the computer room reaches 70°C, the shape memory alloy spring melts, the vent baffle falls and closes the natural ventilation opening 19. Preferably, the vent baffle is made of ultra-high performance concrete, and the inner wall is lined with a SiO2 aerogel layer 6.

[0033] 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.

[0034] For example, the fan has an air volume of 36,000 m³ / h. 3 / h, fan air pressure 500pa, motor power 7.5kW, fan efficiency 0.7, motor efficiency 0.85, motor heat dissipation The impeller of the internal circulation fan is selected for an air volume of 800m³ / h. 3 / h, considering a 5℃ temperature difference, a cooling effect of 1.35kW is achieved, which can force ventilation to cool the motor and meet the motor's heat dissipation requirements. The internal circulation fan impeller is linked to the fan's start-stop control to ensure the motor's reliable operation for extended periods.

[0035] 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.

[0036] 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.

[0037] 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 10.

[0038] In this embodiment, as Figure 17As 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.

[0039] Specifically, see Figure 18 The 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] In this embodiment, the cooling type prefabricated fire ventilation room structure is also provided with an electrical compartment 10, which is arranged in the space between the inner wall of the room enclosure cylinder 1 and the outer wall of the internal smoke exhaust pipe 8.

[0044] 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.

[0045] 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.

[0046] In one alternative embodiment, the cooling prefabricated fire ventilation room structure is also equipped with a power distribution system. The room has a reserved fan power distribution circuit interface, which is connected to the smoke exhaust fan control box in the fire compartment inside the building to provide power to the fan.

[0047] In this embodiment, the machine room enclosure cylinder 1, the first end cover 21, the second end cover 22, and the machine room inspection door 3 are all made of precast concrete structures, or precast using ultra-high performance concrete (UHPC) material. For further improvement of fire resistance, see [reference needed]. Figure 15 A SiO2 aerogel layer 6 can be provided on the inner wall surfaces of the computer room enclosure cylinder 1, the first end cover 21, the second end cover 22, and the computer room maintenance door 3 to form a composite structure and achieve a fire resistance requirement of at least 2 hours.

[0048] In this embodiment, the computer room structure 100 can be divided into suspended type and ground type, used for underground parking garages and rooftop fire ventilation equipment, respectively. The suspended type computer room structure will be used as an example for explanation: 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.

[0049] 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 9The 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.

[0050] 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.

[0051] 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.

[0052] 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 10 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.

[0053] In the fourth scenario, the connection 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, thus achieving the fixed suspension of the machine room structure 100. In this case, this connection structure 5 can be used regardless of whether the machine room enclosure cylinder 1 has a top plate 16.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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 8The 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.

[0058] 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 16 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.

[0059] 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.

[0060] 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.

[0061] Compared with the prior art, the cooling-type prefabricated fire ventilation room structure provided in this embodiment can achieve the following beneficial effects: 1. The computer room is equipped with air, water and electricity interfaces that meet fire protection requirements. Multiple cooling methods are used in the computer room to improve the operating efficiency of the fire-fighting fans and increase their service life. This can effectively save computer room space and provide higher quality usage. Moreover, the operation is characterized by low vibration, low noise and safety and reliability, which can provide higher quality usage.

[0062] 2. It can be installed on the roof, occupying less than 2.2m of height in the computer room, thus not affecting the computer room area; it can also be hoisted under the ceiling of a tall space, without occupying ground space, or placed on the ground in corners or other ineffective gray spaces.

[0063] 3. It adopts a prefabricated integrated design, which is low in cost, lightweight, fire resistant, and has multiple advantages such as stability, reusability and aesthetics.

[0064] 4. The main structure of the computer room is prefabricated using ultra-high performance concrete (UHPC) material. 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.

[0065] 5. The application of this utility model's computer room structure does not affect the progress of other main construction processes. Installation and setup can be carried out in any process. If the plan is changed, it can greatly save economic costs, improve construction efficiency, and accelerate the overall construction progress. It not only reduces the operating and renovation costs of the building, but also puts the concept of "green, healthy, and smart" livability into practice from the building's core, truly supporting the continuous evolution and development of "good houses" and "good communities" in the coming decades.

[0066] 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 fire ventilation room structure for cooling, characterized in that, The equipment includes a machine room enclosure cylinder (1) and a fan (4). The machine room enclosure cylinder (1) has a base plate (15), a first side wall (11) and a second side wall (12) arranged in parallel vertical directions. The machine room enclosure cylinder (1) has a first open end (13) and a second open end (14) at its two ends in the horizontal direction. The first open end (13) and the second open end (14) are respectively equipped with a first end cap (21) and a second end cap (22). The first end cap (21) and the second end cap (22) are both provided with smoke inlet (23). The smoke inlet (23) is used to connect to the ventilation duct (300). The machine room enclosure cylinder (1) is provided with an internal smoke exhaust pipe (8), and 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 provided with a cooling mechanism.

2. The prefabricated fire ventilation room structure for cooling as described in claim 1, characterized in that, It also includes a computer room maintenance door (3), which is located on the first side wall (11) or the second side wall (12); 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 or ultra-high performance concrete.

3. The prefabricated cooling ventilation room structure according to claim 1, characterized in that, The internal smoke exhaust pipe (8) includes two sections of smoke exhaust duct (81). The fan (4) is located inside the hood (41). The hood (41) has an air inlet and an air outlet. The air inlet and the air outlet are respectively connected to the smoke inlet (23) on the first end cover (21) and the smoke inlet (23) on the second end cover (22) through a section of smoke exhaust duct (81).

4. The prefabricated cooling ventilation room structure according to claim 3, characterized in that, The internal smoke exhaust pipe (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 pipes (81) on both sides through a flexible connecting pipe (82).

5. The prefabricated cooling ventilation room structure according to claim 1, characterized in that, The side wall of the computer room enclosure cylinder (1) is provided with a natural ventilation opening (19) for normal ventilation of the computer room. A vent baffle is provided above the natural ventilation opening (19). The vent baffle is located above the natural ventilation opening (19) by a memory alloy spring. When a fire occurs and the temperature of the computer room reaches 70°C, the memory alloy spring melts and the vent baffle falls down and closes the natural ventilation opening (19).

6. The prefabricated cooling ventilation room structure according to claim 1, characterized in that, The cooling mechanism includes a motor cooling system configured to dissipate heat and cool the motor (43) of the fan; The fan (4) has a motor cooling system at the rear end of the motor (43). The motor cooling system uses an internal circulation fan impeller (44). The motor housing of the motor (43) is provided with a guide pipe that communicates with the outside. When the fan (4) is running, it exchanges fluid with the outside through the guide pipe to achieve forced ventilation cooling of the motor (43).

7. The prefabricated cooling ventilation room structure according to claim 3, characterized in that, The cooling mechanism includes a water spray system (9), which 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 provided with multiple nozzles (93). The bottom of the internal exhaust pipe (8) is provided with a drain outlet, and a drain drain is installed at the drain outlet. The bottom plate (15) of the machine room enclosure cylinder (1) is provided with a drain outlet (151). The two ends of the drain pipe (92) are respectively connected to the drain outlet and the drain outlet (151). The drain outlet (151) is connected to the building drainage pipe (92) through an external water pipe.

8. The prefabricated cooling ventilation room structure according to claim 7, characterized in that, The nozzles (93) are arranged inside the shroud (41), and multiple nozzles (93) can spray water toward the fan (4) from different directions; And / or, the nozzle (93) is arranged in the upstream exhaust duct (81) of the fan.

9. The prefabricated cooling ventilation room structure according to claim 7, characterized in that, The drain outlet is located at the bottom of the cover (41) of the fan (4).

10. The prefabricated cooling ventilation room structure according to claim 1, characterized in that, An electrical compartment (10) is also provided, which is located in the space between the inner wall of the machine room enclosure cylinder (1) and the outer wall of the internal exhaust pipe (8).

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