Special fire-resistant heat-insulation smoke outlet air collecting box for clean room

Abstract

The utility model discloses a fire-resistant heat-insulation smoke outlet air collecting box special for a clean room, and belongs to the technical field of clean room assemblies. Comprising a box body, an air pipe nozzle, an outer cover plate and a filter plate unit, the box body comprises a metal inner layer and a metal outer layer, and a fireproof heat insulation sandwich layer is filled between the metal inner layer and the metal outer layer; the front end of the box body is hollow; a smoke outlet is formed in the rear end of the box body; one end of the air pipe nozzle is butted with the smoke outlet, and the other end of the air pipe nozzle is connected with the smoke exhaust air pipe; the air pipe nozzle is fixed outside the box body through a bolt; the outer cover plate comprises a frame plate body, and a limiting frame is integrally formed on the outer edge of a frame groove of the frame plate body. The four ends of the outer cover plate are provided with angle seats outside the limiting frame; a guide rail body is embedded between every two adjacent angle seats, and the angle seats and the guide rail bodies are fastened through bolts. According to the fire-resistant heat-insulation smoke outlet air collecting box special for the clean room, the smoke outlet and the air exhaust pipe of the clean room can be rapidly installed, the air exhaust efficiency is high, and noise can be lowered.

Description

Technical Field

[0001] This utility model specifically relates to a fire-resistant and heat-insulating smoke exhaust air collection box for cleanrooms, belonging to the field of cleanroom component technology. Background Technology

[0002] A cleanroom is a space within a specific area where airflow circulation removes pollutants such as airborne particles, harmful gases, and bacteria. Currently, the most commonly used air purification and filtration equipment in cleanrooms is the FFU (Fan Filter Unit), which is a combination of a fan and a filter. The FFU is typically installed at the air supply terminal of the cleanroom, supplying fresh air into the cleanroom and exhausting the air from the cleanroom using an exhaust system. Existing exhaust systems connect the exhaust vent to the exhaust fan via an exhaust duct. For example, Chinese Patent Publication No. CN107652793B discloses an exhaust or smoke exhaust duct for cleanrooms and its manufacturing method. A liquid coating that can initially dry at room temperature or low temperature is applied to the inside of a prefabricated metal duct. After the coating has initially dried, it is baked at a temperature not exceeding 250°C to completely dry the coating, resulting in the finished product. This exhaust duct structure has good fire resistance, but the installation of the exhaust duct and exhaust vent is cumbersome, the connection point is prone to air leakage, and the exhaust noise is relatively high. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a fire-resistant and heat-insulating smoke exhaust vent collection box specifically designed for cleanrooms. This box enables standardized installation of cleanroom smoke exhaust vents and exhaust pipes, resulting in high exhaust efficiency and reduced noise during exhaust.

[0004] This utility model discloses a fire-resistant and heat-insulating smoke exhaust collection box for cleanrooms, comprising:

[0005] The enclosure comprises an inner metal layer and an outer metal layer, with a fire-resistant and heat-insulating sandwich layer filling the space between them. The front end of the enclosure is hollow, and a smoke exhaust port is provided at the rear end. By collecting and exhausting smoke through the enclosure, the smoke collection surface of the cleanroom can be expanded. When smoke enters the enclosure, it is first buffered. Because the enclosure is composed of an inner metal layer and an outer metal layer with a fire-resistant and heat-insulating sandwich layer filling the space between them, high-temperature smoke can be isolated from the heat, preventing heat transfer to the ceiling. The enclosure has strong overall high-temperature resistance and fire resistance.

[0006] The duct nozzle has one end connected to the smoke exhaust port and the other end connected to the smoke exhaust duct. The duct nozzle is fixed to the outside of the housing with bolts. When the smoke enters the housing and is buffered, it is suctioned through the smoke exhaust duct. The smoke inside the housing is discharged through the duct nozzle and enters the smoke exhaust duct. The duct nozzle can match the smoke exhaust duct and the smoke exhaust port.

[0007] The outer cover plate includes a frame plate body, which is integrally formed into a limiting frame on the outer edge of the frame groove; corner seats are provided at the four ends of the outer cover plate outside the limiting frame; guide rails are fitted between adjacent corner seats, and the corner seats and guide rails are fastened together by bolts; the corner seats and guide rails form a surrounding frame, which is fitted into the outer edge of the front end of the box body;

[0008] A filter plate unit, comprising a filter plate body fitted inside a limiting frame, a fitting frame fixed on the filter plate body, and an array of filter holes formed inside the fitting frame on the filter plate body; the fitting frame is fitted into the inner edge of the front end of the housing.

[0009] The guide rail is suspended and fixed to the ceiling of the clean room.

[0010] The outer cover and filter plate unit work together to encapsulate the hollow end of the box. The fitting frame of the filter plate unit is embedded in the inside of the air box, and the filter plate body can seal and press the hollow side of the air box. The flue gas in the clean room can only enter the box after being filtered through the filter array. The limiting frame of the outer cover can align the filter plate body and abut the filter plate body against the end of the box. The guide rail body can be fixed to the corner seat with bolts, so that each side of the outer cover is equipped with a guide rail body, and the two ends of the guide rail body are provided with fitting slots. The guide rail body facilitates the installation of the fire-resistant and heat-insulated smoke exhaust air collection box itself and the hoisting of the fire-resistant and heat-insulated smoke exhaust air collection box. During hoisting, hoisting parts are installed on the guide rail body and fixed to the ceiling through the hoisting parts, so that the fire-resistant and heat-insulated smoke exhaust air collection box can be tightly installed with the ceiling.

[0011] Furthermore, a pull plate is movably fitted onto the guide rail, and the rear end of the pull plate engages with the rear end of the housing; a pressure plate is movably fitted onto the guide rail, and an adjustment hole is provided at the end of the pressure plate away from the guide rail. A pressure foot passes through the inner side of the adjustment hole, and a limit nut is screwed onto the pressure foot; a spring body is sleeved on the bottom surface of the pressure foot and the pressure plate; during installation, the pull plate is embedded inside the guide rail, and the top of the pull plate engages with the housing, so that the outer cover and the housing are engaged as one unit. Then, the housing is embedded into the ceiling. Then, the top surface of the outer cover plate is brought into contact with the bottom surface of the ceiling. Next, a spring body is fitted onto the pressure foot, and the pressure foot is inserted into the adjustment hole and the limit nut is screwed on. Then, the pressure plate is movably engaged onto the guide rail. Pull the pressure foot to compress the spring body and slide the pressure plate to the set position. At this time, release the pressure foot. Due to the action of the spring body, the bottom of the pressure foot abuts against the top surface of the ceiling, so that the outer cover plate is sealed and fitted to the bottom surface of the ceiling. The construction efficiency is high, and after installation, the sealing performance around the smoke exhaust port can be guaranteed.

[0012] Furthermore, the corner bracket is integrally formed with the outer cover plate, or is fixed to the outer cover plate by bolts.

[0013] Furthermore, the duct nozzle includes a metal inner layer and a metal outer layer, with a fire-resistant and heat-insulating sandwich layer filling the space between the metal inner layer and the metal outer layer; the overall structure of the duct nozzle is consistent with the structure of the housing, and both have fire-resistant and heat-insulating properties.

[0014] Furthermore, the inner and outer metal layers are made of color steel plate, galvanized plate, or aluminum plate; the fire-resistant and heat-insulating sandwich layer is made of perlite silicon crystal fire-resistant and heat-insulating board, fireproof board, or rock wool and fiberglass wool; the inner and outer metal layers have good fire resistance, and the space between the inner and outer metal layers is filled with perlite silicon crystal fire-resistant and heat-insulating board, fireproof board, or rock wool and fiberglass wool; the overall weight is light and has a good heat insulation effect.

[0015] Furthermore, both ends of the duct nozzle are flange structures; the two ends of the duct nozzle can be directly installed onto the smoke exhaust duct and the housing through the flanges.

[0016] Furthermore, the top surface of the housing is pressed against the ceiling, the duct nozzle is embedded from the smoke exhaust port of the ceiling, and a hanger rod is movably installed inside the guide rail body. The hanger rod is fixed to the ceiling by bolts. The housing can be hoisted onto the ceiling by the hanger rod, and the ceiling and the top surface of the housing can be tightly fitted. After installation, the sealing performance of the smoke exhaust port can be guaranteed. After the duct nozzle and the smoke exhaust duct are installed through flanges, the duct nozzle is embedded into the inside of the ceiling. Then, the hanger rod is inserted from the end of the guide rail body, and the top of the hanger rod is fixed to the keel of the ceiling by bolts. The construction efficiency is high, and the sealing performance around the smoke exhaust port can be guaranteed after installation.

[0017] Compared with existing technologies, the fire-resistant and heat-insulating smoke exhaust vent collection box for cleanrooms of this utility model can be directly integrated into the ceiling of the cleanroom through the structure of the box body and air duct nozzles, serving as a smoke exhaust collection vent. The overall size is compatible with the mounting slot of the FFU. The box body and FFU suspended on the cleanroom ceiling are similar in size and appearance, making the cleanroom ceiling aesthetically pleasing. After installation, the box body or outer cover fits tightly against the ceiling, effectively improving sealing and smoke exhaust efficiency. It avoids low smoke exhaust efficiency caused by air leakage. It can also reduce wind noise through the buffer of the box body. It can be matched with air duct nozzles that are compatible with the diameter of the smoke exhaust duct. The whole is assembled using modular standard parts, improving work efficiency and reducing the installation cycle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the box body of this utility model.

[0019] Figure 2 This is a schematic diagram of the housing and duct nozzle installation structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the installation structure of the housing, air duct nozzle, and outer cover of this utility model.

[0021] Figure 4 This is a schematic diagram of the outer cover structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the filter plate unit structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the installation structure of the outer cover plate and filter plate unit of this utility model.

[0024] Figure 7 This is a schematic diagram of an installation embodiment of the fire-resistant and heat-insulating smoke exhaust air collection box of this utility model.

[0025] Figure 8 This is a schematic diagram of the installation embodiment of the presser foot, limit nut, and spring body of this utility model.

[0026] Figure 9 This is a schematic diagram of another installation embodiment of the fire-resistant and heat-insulating smoke exhaust air collection box of this utility model.

[0027] Reference numerals in the attached drawings: 1. Box body, 2. Inner metal layer, 3. Outer metal layer, 4. Fire-resistant and heat-insulating sandwich layer, 5. Smoke exhaust outlet, 6. Air duct nozzle, 7. Frame plate body, 8. Limiting frame, 9. Corner seat, 10. Guide rail body, 11. Filter plate body, 12. Fitting frame, 13. Filter hole array, 14. Pull plate, 15. Pressure plate, 16. Pressure foot, 17. Limiting nut, 18. Spring body, 19. Hanging rod. Detailed Implementation

[0028] Example 1:

[0029] like Figures 1 to 6 The fire-resistant and heat-insulated smoke exhaust air collection box shown is for cleanroom use and includes:

[0030] The enclosure 1 includes an inner metal layer 2 and an outer metal layer 3, with a fire-resistant and heat-insulating sandwich layer 4 filling the space between the inner metal layer 2 and the outer metal layer 3. The front end of the enclosure 1 is hollow, and a smoke exhaust port 5 is provided at the rear end of the enclosure 1. By collecting and exhausting smoke through the enclosure 1, the smoke collection surface of the clean room can be expanded. When the smoke enters the enclosure 1, it is first buffered. Since the enclosure 1 is composed of an inner metal layer 2 and an outer metal layer 3 with a fire-resistant and heat-insulating sandwich layer 4 filling the space between them, when high-temperature smoke enters the enclosure 1, it can be isolated at high temperatures to prevent heat from being transferred to the ceiling. The overall high-temperature resistance and fire resistance are strong.

[0031] The duct nozzle 6 has one end connected to the smoke exhaust port 5 and the other end connected to the smoke exhaust duct. The duct nozzle 6 is fixed to the outside of the housing 1 by bolts. When the smoke enters the housing 1 and is buffered, it is suctioned through the smoke exhaust duct. The smoke in the housing 1 is discharged through the duct nozzle 6 and enters the smoke exhaust duct. The duct nozzle 6 can match the smoke exhaust duct and the smoke exhaust port 5.

[0032] The outer cover plate includes a frame plate body 7, which is integrally formed with a limiting frame 8 on the outer edge of the frame groove; corner seats 9 are provided at the four ends of the outer cover plate outside the limiting frame 8; guide rails 10 are fitted between adjacent corner seats 9, and the corner seats 9 and guide rails 10 are fastened together by bolts; the enclosing frame formed by the corner seats 9 and guide rails 10 is fitted with the outer edge of the front end of the box body 1;

[0033] The filter plate unit includes a filter plate body 11 fitted inside the limiting frame 8, a fitting frame 12 fixed on the filter plate body 11, and a filter hole array 13 opened inside the fitting frame 12 on the filter plate body 11; the fitting frame 12 is fitted with the inner edge of the front end of the box body 1.

[0034] The guide rail 10 is fixed to the ceiling of the clean room.

[0035] The outer cover and filter plate unit work together to encapsulate the hollow end of the housing 1. The fitting frame 12 of the filter plate unit is embedded into the inner side of the housing 1, and the filter plate body 11 can seal and press the hollow side of the housing 1. The flue gas in the clean room can only enter the housing 1 after being filtered through the filter array 13. The limiting frame 8 of the outer cover can align the filter plate body 11 and abut the filter plate body 11 against the end of the housing 1. The guide rail body 10 can be fixed to the corner seat 9 by bolts, so that each side of the outer cover is equipped with a guide rail body 10, and the two ends of the guide rail body 10 are provided with fitting slots. The guide rail body 10 facilitates the installation of the fire-resistant and heat-insulating smoke exhaust port air collection box itself and the hoisting of the fire-resistant and heat-insulating smoke exhaust port air collection box. During hoisting, the hoisting parts are installed on the guide rail body 10 and fixed to the ceiling by the hoisting parts, so that the fire-resistant and heat-insulating smoke exhaust port air collection box can be tightly installed with the ceiling.

[0036] Example 2:

[0037] like Figure 7 and Figure 8 The fire-resistant and heat-insulating smoke exhaust air collection box for cleanrooms shown has a pull plate 14 movably fitted onto the guide rail body 10, with the rear end of the pull plate 14 engaging with the rear end of the box body 1; a pressure plate 15 is movably fitted onto the guide rail body 10, with an adjustment hole at the end of the pressure plate 15 away from the guide rail body 10, and a pressure foot 16 passing through the inner side of the adjustment hole, with a limit nut 17 screwed onto the pressure foot 16; a spring body 18 is sleeved on the bottom surface of the pressure foot 16 and the pressure plate 15.

[0038] During installation, a pull plate 14 is embedded inside the guide rail body 10, and the top of the pull plate 14 is engaged with the housing 1, so that the outer cover and the housing 1 are engaged as one unit. Then, the housing 1 is embedded into the ceiling, and the top surface of the outer cover abuts against the bottom surface of the ceiling. Next, a spring body 18 is fitted onto the pressure foot 16, and the pressure foot 16 is embedded into the adjustment hole and the limit nut 17 is screwed on. Then, the pressure plate 15 is movably engaged onto the guide rail body 10; and the pressure foot 16 is pulled to compress the spring body 18, and the pressure plate 15 is slid to the set position. At this time, the pressure foot 16 is released. Due to the action of the spring body 18, the bottom of the pressure foot 16 abuts against the top surface of the ceiling, so that the outer cover is sealed and fitted to the bottom surface of the ceiling. The construction efficiency is high, and after installation, the sealing performance around the smoke exhaust port 5 can be guaranteed.

[0039] The corner bracket 9 is integrally formed with the outer cover plate, or is fixed to the outer cover plate by bolts.

[0040] The duct nozzle 6 includes a metal inner layer 2 and a metal outer layer 3, with a fire-resistant and heat-insulating sandwich layer 4 filling the space between the metal inner layer 2 and the metal outer layer 3; the overall structure of the duct nozzle 6 is consistent with the structure of the housing 1, and both have fire-resistant and heat-insulating properties.

[0041] The inner metal layer 2 and the outer metal layer 3 are made of color steel plate, galvanized plate or aluminum plate; the fire-resistant and heat-insulating sandwich layer 4 is made of beaded silicon crystal fire-resistant and heat-insulating board, fireproof board or rock wool and fiberglass wool; the inner metal layer 2 and the outer metal layer 3 have good fire resistance, and the space between the inner metal layer 2 and the outer metal layer 3 is filled with beaded silicon crystal fire-resistant and heat-insulating board, fireproof board or rock wool and fiberglass wool; the overall weight is light and has a good heat insulation effect.

[0042] Both ends of the duct nozzle 6 are flange structures; both ends of the duct nozzle 6 can be directly installed onto the smoke exhaust duct and the housing 1 through the flanges.

[0043] Example 3:

[0044] like Figure 9 The fire-resistant and heat-insulating smoke exhaust vent air collection box shown is for cleanroom use. The top surface of the box body 1 is pressed against the ceiling, and the air duct nozzle 6 is embedded from the smoke exhaust vent 5 in the ceiling. A hanger rod 19 is movably installed inside the guide rail body 10, and the hanger rod 19 is fixed to the ceiling by bolts. The hanger rod 19 can be used to suspend the box body 1 onto the ceiling, ensuring a tight fit between the ceiling and the top surface of the box body 1. After installation, it can ensure the sealing performance of the smoke exhaust vent 5. After the air duct nozzle 6 and the smoke exhaust duct are installed through a flange, the air duct nozzle 6 is embedded into the inside of the ceiling. Then, the hanger rod 19 is inserted from the end of the guide rail body 10, and the top of the hanger rod 19 is fixed to the keel of the ceiling by bolts. The construction efficiency is high, and after installation, it can ensure the sealing performance around the smoke exhaust vent 5.

[0045] This utility model discloses a fire-resistant and heat-insulating smoke exhaust vent collection box specifically for cleanrooms. It provides a solution for the installation and connection of cleanroom smoke exhaust vents and exhaust pipes, achieving standardized connection between cleanroom smoke exhaust vents and exhaust pipes. The connection box (box body 1) has an outer diameter of 1170*1170*400mm, and an air duct nozzle 6 is added to the rear end of the connection box. The length of the air duct nozzle 6 is 100mm, and the width and height of the air duct nozzle 6 can be adjusted according to the diameter of the exhaust pipe. The outer diameter of the connection box matches the size of the cleanroom FFU, and it can be directly integrated into the cleanroom ceiling. The overall structure is aesthetically pleasing and can ensure airtightness.

[0046] The above embodiments are merely preferred embodiments of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model are included within the scope of the present utility model.

Claims

1. A clean room dedicated fire rated insulated exhaust port plenum characterized by: include: The enclosure comprises an inner metal layer and an outer metal layer, with a fire-resistant and heat-insulating sandwich layer filling the space between the inner and outer metal layers; the front end of the enclosure is hollow. A smoke exhaust port is provided at the rear end of the enclosure; The duct nozzle has one end connected to the smoke exhaust port and the other end connected to the smoke exhaust duct; the duct nozzle is fixed to the outside of the housing by bolts. The outer cover plate includes a frame plate body, which is integrally formed into a limiting frame on the outer edge of the frame groove; corner seats are provided at the four ends of the outer cover plate outside the limiting frame; guide rails are fitted between adjacent corner seats, and the corner seats and guide rails are fastened together by bolts; the corner seats and guide rails form a surrounding frame, which is fitted into the outer edge of the front end of the box body; A filter plate unit, comprising a filter plate body fitted inside a limiting frame, a fitting frame fixed on the filter plate body, and an array of filter holes formed inside the fitting frame on the filter plate body; the fitting frame is fitted into the inner edge of the front end of the housing. The guide rail is suspended and fixed to the ceiling of the clean room.

2. The fire rated, insulated, cleanroom dedicated exhaust hood plenum box of claim 1, wherein: A pull plate is movably fitted onto the guide rail body, and the rear end of the pull plate engages with the rear end of the housing body; a pressure plate is movably fitted onto the guide rail body, and an adjustment hole is provided at the end of the pressure plate away from the guide rail body. A pressure foot passes through the inner side of the adjustment hole, and a limit nut is screwed onto the pressure foot; a spring body is sleeved on the bottom surface of the pressure foot and the pressure plate.

3. The fire-resistant and heat-insulating smoke exhaust collection box for cleanrooms according to claim 1, characterized in that: The corner bracket is integrally formed with the outer cover plate, or is fixed to the outer cover plate by bolts.

4. The fire-resistant and heat-insulating smoke exhaust collection box for cleanrooms according to claim 1, characterized in that: The duct nozzle includes an inner metal layer and an outer metal layer, with a fire-resistant and heat-insulating sandwich layer filling the space between the inner and outer metal layers.

5. The fire rated, insulated, cleanroom dedicated exhaust hood plenum of claim 1 or 4, wherein: The inner and outer metal layers are made of color steel plate, galvanized plate or aluminum plate; the fire-resistant and heat-insulating sandwich layer is made of beaded silicon crystal fire-resistant and heat-insulating board, fireproof board or rock wool fiberglass wool.

6. The fire-resistant and heat-insulating smoke exhaust collection box for cleanrooms according to claim 1, characterized in that: Both ends of the duct nozzle are flange structures.

7. The fire rated, cleanroom dedicated exhaust hood plenum box of claim 1, wherein: The top surface of the housing is pressed against the ceiling, the duct nozzle is embedded from the smoke exhaust port of the ceiling, and a hanging rod is movably installed in the guide rail body. The hanging rod is fixed to the ceiling by bolts.

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