Method for cleaning indoor aluminum alloy FFU keel ceiling

Abstract

The invention discloses a method for cleaning an indoor aluminum alloy FFU keel ceiling. The method comprises the steps that construction preparation is conducted, FFU aluminum alloy keel raw materials and accessories needing to be installed are transported to a raised floor in a designated area, the quality of the materials is checked, and a construction scheme is determined; the FFU keels are assembled on the ground, the FFU keels are assembled in a modular mode based on the construction scheme, assembling is conducted according to the modulus of 3 * 3, and connecting bolts are fastened; the FFU keel is installed through a lift truck or a movable scaffold, a suspender and the keel are kept on the same straight line, and the keel is synchronously installed from the middle to the periphery of an installation designated area in a hoisting mode; and finished product protection is conducted, specifically, after FFU ceiling construction is completed, the FFU keel is wrapped with a protection material. Through the measures of ground pre-assembly, modular construction, staged leveling and finished product protection, the problems that traditional construction is low in efficiency, insufficient in precision and difficult to clean are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of clean room construction, and in particular to a method for installing an aluminum alloy FFU keel ceiling in a clean room. Background Art

[0002] Under the background of the rapid growth of the demand for networking and digitization in various industries, the construction of digital factories has become an inevitable trend in the development of the manufacturing industry. Many network technology companies actively invest in building innovative digital factories to conform to this trend. In the construction of digital factories, the construction quality of clean rooms is crucial, and the installation of aluminum alloy FFU keel ceilings is a key link.

[0003] However, the existing installation technologies for aluminum alloy FFU keel ceilings have many limitations. Traditional installation methods are mostly high-altitude operations, with narrow construction spaces and extremely inconvenient operations, resulting in low construction efficiency and extended construction periods. At the same time, high-altitude operations increase the difficulty of fastening the connectors, and it is difficult to ensure the connection reliability, thus affecting the overall stability of the ceiling. In addition, in terms of flatness adjustment, there is a lack of a scientific and systematic method, making it difficult to accurately control the flatness of the ceiling and unable to meet the high-precision requirements of clean rooms. Moreover, since the construction of clean rooms involves many specialties and the construction processes of various specialties intersect frequently, the existing technologies have imperfect finished product protection measures, which are likely to cause damage and pollution to the keel ceiling, seriously affecting the project quality.

[0004] For example, the invention titled "An Assembled Ceiling System and Installation Method" with the publication number CN113356439A discloses an assembled ceiling system. An integrated high-position board is laid flat and hung in the ceiling space, and there is no joint on the side with the decorative effect. The other side of the integrated high-position board is connected by snap-fastening of segmented panels and suspended in the ceiling space by top hangers. A first limit card slot is provided on the other side of the integrated high-position board, and a first snap is provided on the segmented panel for inserting into the limit card slot. When the segmented panel is snap-fastened to the integrated high-position board, the segmented panel and the integrated high-position board enclose an installation slot for installing the top hanger, and the top hanger is inserted and fixed in this installation slot. The integrated panel is suspended from the ceiling by fixing the top hanger to the ceiling keel. At the same time, the vertical board is snap-fastened to the integrated high-position board and the low-position board to form an integral body.

[0005] In summary, researching an aluminum alloy FFU keel ceiling ground assembly technology and construction method in a clean room is one of the important problems that need to be solved currently. Summary of the Invention

[0006] In view of the above problems existing in the prior art, the object of the present invention is to provide a method for installing an aluminum alloy FFU keel ceiling in a clean room, which solves the problems of low traditional construction efficiency, insufficient precision and difficult cleaning through on-ground pre-assembly, modular construction, staged leveling and finished product protection measures.

[0007] To solve the above problems, the present invention adopts the following technical solutions: A method for installing an aluminum alloy FFU keel ceiling in a clean room, comprising the steps of:

[0008] Step 1, construction preparation: Transport the raw materials and accessories of the FFU aluminum alloy keel to be installed onto the raised floor in the designated area, check the material quality, and determine the construction plan;

[0009] Step 2, on-ground assembly of the FFU keel: Assemble the FFU keel in a modular manner based on the construction plan, assemble it according to the module of 3×3, and tighten the connecting bolts;

[0010] Step 3, installation of the FFU keel: Use a lift truck or a mobile scaffold for installation, keep the suspender in a straight line with the keel, and install the keel synchronously from the middle of the designated installation area to the surrounding areas;

[0011] Step 4, finished product protection: After the FFU ceiling construction is completed, use protective materials to wrap the FFU keel.

[0012] The construction preparation includes the steps of:

[0013] (11) Preparation of equipment and materials: Prepare materials such as FFU aluminum alloy keel, zinc alloy joint, jumper, and connector;

[0014] (12) Preparation of construction tools;

[0015] (13) Preparation of construction conditions: Prepare construction drawings and design specifications; Site preparation, ensure that the epoxy coating or color steel plate roof on the upper part of the FFU aluminum alloy keel ceiling area is installed and the roof level is adjusted, determine the elevation reference point, the installation of water pipes, air ducts, cable trays and equipment in the ceiling is completed and the water pipe pressure test and acceptance are completed, conduct a height review of the pipelines, equipment and their supports in the ceiling according to the ceiling design elevation; Compile a construction plan for the FFU aluminum alloy keel ceiling, and conduct written safety and technical disclosures to the construction personnel.

[0016] Coarse leveling is carried out before installing the FFU keel, specifically: Unify the reference line, tighten the connecting bolts before leveling, adjust the verticality of the suspenders, including the suspenders of the comprehensive support and the keel suspenders; Place the instrument at a fixed and vibration-free place, and fix it with a bracket to the structural column;

[0017] First, complete the leveling work of the integrated support, with the flatness within ±5 mm, and then conduct the rough leveling of the keel to make the flatness of the keel reach within ±10 mm.

[0018] After the installation of the FFU keel, conduct fine leveling. Use a laser level to finely adjust the flatness of the keel so that the flatness of the keel reaches within ±5 mm.

[0019] When assembling the FFU keel, the FFU keel is covered with a protective film.

[0020] During the assembly process of the FUU keel, bolt connection is adopted. First, screw the matching bolts to 70% - 80%. After all the bolts of the assembled unit block are initially tightened in the holes, further tighten them in the order from the middle to both sides and from the inside to the outside.

[0021] When assembling a single module of the FFU keel, use cross joints to connect the keels in pairs to form a rectangular single module. The cross joints are fixedly connected to the keels by hexagon socket head cap screws.

[0022] A horizontal adjuster is installed on the keel. The horizontal adjuster is fixedly connected to the keel by T-shaped screws; a tooth bar is provided above the horizontal adjuster, and the tooth bar is fixed by a flange nut.

[0023] A suspension screw is provided on the tooth bar.

[0024] The single-module keels are connected by T-shaped joints; an L-shaped joint is provided at the bending part.

[0025] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0026] 1. This application provides a new assembly method. Different from the traditional high-altitude installation method, this application adopts ground modular assembly on the raised floor and uses a specific 3×3 modulus. This assembly method not only greatly improves the construction operation space and construction efficiency, but also enhances the stability and standardization of the assembly through standardized modulus design. At the same time, attention is paid to the protection of the protective film, reducing the complexity of subsequent cleaning work from the source;

[0027] 2. This application conducts two stages of rough adjustment and fine adjustment, respectively before and after the installation of the FFU. Both stages adopt the scientific method of combining a laser level with a long scale for inspection, and accurately adjust according to the different requirements for flatness in different construction stages. Compared with the relatively single and extensive leveling methods in the prior art, the leveling process of the present invention is more systematic and accurate, and can better meet the strict requirements for the ceiling flatness in the clean room;

[0028] 3. This application fully considers the complex situation of the intersection of various professional construction processes in the clean room, and formulates a comprehensive and detailed finished product protection measure. From the wrapping protection of the keel, to the marking warning and winding film protection of vulnerable areas, to the laying of the pedestrian passage and special person guardianship during the construction on the ceiling, a full - range and multi - level finished product protection system is formed;

[0029] 4. This application can effectively improve the construction efficiency. The floor assembly method provided by this application avoids many inconveniences of high - altitude operations, enables construction workers to operate in a wider and safer environment, greatly shortens the construction time, effectively speeds up the project progress, significantly shortens the construction period, and reduces the construction cost;

[0030] 5. By adopting reasonable assembly moduli, scientific leveling methods, and reliable connection and fastening measures, this application jointly ensures the flatness and stability of the ceiling, improves the construction quality, and provides a strong guarantee for the efficient operation of the clean room;

[0031] 6. By reducing the damage to the protective film, this application greatly reduces the difficulty and workload of subsequent cleaning work, thereby saving cleaning costs and improving economic benefits;

[0032] 7. This application can effectively reduce the risk of finished product damage. Through perfect finished product protection measures, it comprehensively protects the FFU keel ceiling, effectively avoids problems such as scratches, contamination, or collision damage that may occur during the construction of other professions, ensures the quality of the entire project, and reduces the rework cost and construction period delay caused by finished product damage. Brief Description of the Drawings

[0033] Figure 1 It is the construction process flow chart of the FFU ceiling in the embodiment of this application;

[0034] Figure 2 It is the installation schematic diagram of the FFU ceiling in the embodiment of this application;

[0035] Figure 3 It is the three - dimensional schematic diagram of the FFU ceiling system in the embodiment of this application;

[0036] Among them, 1. Keel, 2. FFU, 3. Horizontal adjuster, 4. Suspension screw, 5. Blind plate, 11. Cross joint, 12. Allen screw, 13. T - shaped joint, 14. L - shaped joint, 31. T - shaped screw, 32. Threaded rod, 33. Flange nut. Specific Embodiments

[0037] The technical solutions of the present invention will be further clearly and detailedly described below in combination with the embodiments and the drawings.

[0038] Embodiment

[0039] Please refer to Figure 1 A method for installing the ceiling of the aluminum alloy FFU2 keel 1 in a clean room, comprising the steps of:

[0040] Step 1. Construction preparation

[0041] Preparation of equipment and materials: Prepare materials such as FFU2 aluminum alloy keel 1, zinc alloy joints (including L-shaped joints, T-shaped joints, cross-shaped joints), jumper pieces (including L-shaped jumper pieces, T-shaped jumper pieces, cross-shaped jumper pieces), M12 internal hexagon screws, square regulators, T-shaped screws, flange nuts 33, galvanized wire rods, airtight strips, blind plates 5, etc., and ensure that the packaging of the materials is intact when they enter the site, the appearance is not damaged, the size specifications meet the requirements of relevant specifications, and the materials are complete;

[0042] Preparation of construction tools: Electric tools such as speed-adjustable electric drills, aluminum profile cutting machines, vacuum cleaners, electric wrenches; manual tools such as taps, internal hexagon wrenches, lift trucks, handling trucks, fixed wrenches; measuring tools such as steel tape measures, automatic levels, laser levels, and the measuring equipment must be within the inspection validity period;

[0043] Preparation of construction conditions: Familiarize with the construction drawings and design specifications, and make records of the drawing review; Familiarize with the site, ensure that the epoxy coating or color steel plate roof on the upper part of the FFU2 aluminum alloy keel 1 ceiling area is installed and the roof level is adjusted, determine the elevation reference point, the installation of water pipes, air ducts, cable trays and equipment in the ceiling is completed and the water pipe pressure test and acceptance are completed, and conduct a height review of the pipelines, equipment and their supports in the ceiling according to the ceiling design elevation; Complete the preparation of the self-inspection records of the materials entering the site and the material inspection and approval materials; Compile the construction plan for the FFU2 aluminum alloy keel 1 ceiling, and conduct written safety and technical disclosures to the construction personnel;

[0044] Step 2. Installation of suspenders

[0045] The suspenders adopt M10 galvanized wire rods. When it is possible to measure the floor height in advance, they are cut to size according to the ceiling elevation drawing in combination with the floor height. To ensure that the ceiling can be leveled twice after the FFU2 is installed, the suspenders are divided into two sections and the lower end length is 500mm. Accurately set the ceiling elevation (specifically the lower surface of the FFU2 keel 1) line around the wall, and the laser level or the method of leveling with a water level tube can be used (the elevation 1m line is based on the project handover elevation control line and determined by on-site measurement). Do anti-rust treatment on the cut ends of the suspenders and steel sections used for the ceiling project, and use silver powder enamel for the paint. The layout of the suspenders is constructed according to the drawings. The distance between the suspenders and the end of the FFU2 aluminum alloy keel 1 shall not be greater than 200mm, the suspender spacing is 1200mm, and the length of the suspenders shall not exceed 3m (if the length of the suspenders exceeds 1.5m, set reverse supports; if it exceeds 3m, set secondary steel structures).

[0046] Step 3. Rough leveling

[0047] Unify the reference line and lead it to all structural columns of the factory building through an automatic level. Use the structural column grid to divide the factory building into several small elevation control areas. Calibrate the instrument before use and check it repeatedly during use. The surveyors are fixed and hold certificates to work. Tighten the connecting bolts before leveling, and adjust the verticality of the hanging rods, including the hanging rods of the comprehensive support and the keel 1. Place the instrument at a fixed and vibration-free place and fix it to the structural column with a bracket. First, complete the leveling of the comprehensive support, and the flatness must be within ±5 mm. Then, conduct a rough leveling of the keel 1 to make the flatness of the keel 1 reach within ±10 mm;

[0048] Step 4: Assemble the keel 1 of FFU2 on the ground

[0049] Transport the raw materials of the keel 1 and the connecting accessories to the raised floor within the construction area and assemble them according to the modulus of 3 * 3 (3600 * 3600). Tighten the bolts of the connecting parts to ensure the ground is flat, and reasonably set the tightness of the hexagon socket head bolts. Try to minimize the damage to the protective film of other parts except at the hanging points and connecting parts.

[0050] Step 5: Install the keel 1 of FFU2

[0051] Use a lift truck or mobile scaffolding for installation to ensure that the connecting bolts are firm and reliable and the hanging rods are connected to the keel 1 in a straight line. The hoisting of the keel 1 of FFU2 should be carried out from the inside to the outside and from the middle to the surrounding to reduce construction errors.

[0052] Step 6: Level adjustment of the keel 1 of FFU2;

[0053] After the installation of FFU2, conduct a fine leveling to make the flatness of the keel 1 reach within ±5 mm.

[0054] Step 5: Product protection: After the construction of the FFU2 ceiling is completed, immediately use plastic sheeting to fully wrap the keel 1 of FFU2 to ensure tight wrapping without gaps. For areas that may be subject to collision or scratching, such as the edges and corners of the keel 1, hang eye-catching protection signs and wrap them with stretch film for protection according to the actual situation.

[0055] In some embodiments, when other specialties need to construct on the ceiling of the installed keel 1 of FFU2, lay a dedicated pedestrian passage in advance to ensure the stability and full coverage of the passage. At the same time, arrange a special person on duty to monitor and supervise the operation behavior of the construction personnel. It is strictly prohibited to directly step on the keel 1. Once a potential damage risk is found, stop and handle it in time to ensure that the ceiling of the keel 1 of FFU2 is not damaged during the entire construction process.

[0056] Embodiment 1

[0057] During the construction of a clean room in a digital factory, the ceiling and floor assembly method of the aluminum alloy FFU2 keel 1 of the present application is adopted. The method includes the following steps:

[0058] Step 1: Transport the raw materials and connection accessories to the raised floor in the construction area, and check the material quality to ensure that there is no damage, deformation, etc.

[0059] Step 2: Conduct modular assembly of the aluminum alloy FFU2 keel 1 on the raised floor. When assembling, the bolts of the connecting parts must be tightened to ensure reliable connection, avoid secondary connection, and ensure construction safety. When assembling, it should be noted that except for the hanging points and connecting parts, the protective film at other parts should be damaged as little as possible to reduce the workload and difficulty of future cleaning. The keel 1 is generally assembled in a 3x3 modulus (3600x3600), and it should not be too large. When assembling, attention should be paid to the flatness of the ground, and the tightness of the hexagon socket head bolts during connection should be set reasonably.

[0060] In some preferred embodiments, when assembling the keel 1, first screw the matching bolts to 70% - 80%. After all the bolts of the assembled unit block are initially screwed into the holes, further tighten them in the order from the middle to both sides and from the inside to the outside.

[0061] Step 3: Conduct a rough adjustment of the flatness of the keel 1 to make the flatness of the keel 1 reach within ±10mm. A laser level is required to adjust each hanging point during leveling. When adjusting, you can start from the four sides of the lifting block first to ensure accurate height adjustment around, and a long scale can be used to check the hanging points in the middle.

[0062] Step 4: Conduct the hoisting of the aluminum alloy FFU2 keel 1 ceiling. The hoisting should be carried out synchronously from the center of the factory building to the surroundings to reduce construction errors; after the hoisting is completed, conduct a fine adjustment of the flatness of the keel 1 to make the flatness of the keel 1 reach within ±5mm;

[0063] Step 5: Protect the finished product. Wrap the FFU2 keel 1 with plastic cloth to prevent scratching or contamination. The FFU2 keel 1 is strictly prohibited from being collided with hard objects. Protection signs need to be hung in areas that may be damaged, and protective measures should be taken if necessary. Wrapping film can be used for winding protection.

[0064] In some preferred embodiments, when constructing on the FFU2 keel 1 ceiling that has been installed, lay a separate passage for people flow, and it is strictly prohibited to directly step on the keel 1. If necessary, special personnel can be arranged for on-duty monitoring.

[0065] By adopting the ceiling and floor assembly technology of the aluminum alloy FFU2 keel 1 of the present invention, the construction progress of the clean room in this digital factory has been advanced by 30%, the construction quality has been significantly improved, the cleanliness has reached the design requirements, and good economic and social benefits have been achieved for the enterprise.

[0066] Example 2

[0067] As Figure 2 、 Figure 3 A cleanroom aluminum alloy FFU2 keel 1 ceiling provided, when assembling a single module of the FFU2 keel 1, the keels 1 are connected pairwise by a cross joint 11 to form a rectangular single module. The cross joint 11 is fixedly connected to the keel 1 by an internal hexagonal screw 12, and each single-module keel 1 is connected by a T-shaped joint 13; an L-shaped joint 14 is provided at its bending place and finally connected into a sheet. After installing the FFU22 to the designated position, a blind plate 5 is installed at the position of other keel ceilings; thus forming a keel 1 ceiling.

[0068] A horizontal adjuster 3 is installed on the keel 1. The horizontal adjuster 3 is fixedly connected to the keel 1 by a T-shaped screw 31; a threaded rod 32 is provided above the horizontal adjuster 3, and a suspension screw rod 4 is provided on the threaded rod 32. The threaded rod 32 is fixed by a flange nut 33.

[0069] Finally, it is necessary to point out here that: the above-mentioned are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for ceiling installation of aluminum alloy FFU (2) keel (1) in a clean room, characterized in that, Including the steps: Step 1, Construction preparation: Transport the raw materials and accessories of the FFU (2) aluminum alloy keel (1) to be installed onto the raised floor in the designated area, check the material quality, and determine the construction plan; Step 2, Floor assembly of the FFU (2) keel (1): Assemble the FFU (2) keel (1) modularly based on the construction plan, assemble it according to the modulus of 3×3, and tighten the connecting bolts; Step 3, Installation of the FFU (2) keel (1): Use a lift truck or mobile scaffolding for installation, keep the suspension rod in a straight line with the keel (1), and install the keel (1) synchronously from the middle of the designated installation area to the surrounding; Step 4, Finished product protection: After the FFU (2) ceiling construction is completed, use protective materials to wrap the FFU (2) keel (1).

2. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, The construction preparation includes the steps: (11) Equipment and material preparation: Prepare the FFU (2) aluminum alloy keel (1), zinc alloy joints, jumper pieces, and connecting piece materials; (12) Construction tool preparation; (13) Construction condition preparation: Prepare construction drawings and design specifications; Site preparation, ensure that the epoxy coating or color steel plate roof installation in the upper part of the FFU (2) aluminum alloy keel (1) ceiling area is completed and the roof level adjustment is completed, determine the elevation reference point, the installation of water pipes, air ducts, cable trays, and equipment in the ceiling is completed and the water pipe pressure test and acceptance are completed, conduct a height review of the pipelines, equipment, and their supports in the ceiling according to the ceiling design elevation; Compile the construction plan for the FFU (2) aluminum alloy keel (1) ceiling, and conduct written safety and technical disclosures to the construction personnel.

3. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, Before installing the FFU (2) keel (1), conduct rough leveling, specifically: Unify the reference line, tighten the connecting bolts before leveling, adjust the verticality of the suspension rods, including the suspension rods of the comprehensive support and the keel (1); Place the instrument at a fixed and vibration-free place, and fix it with a bracket to the structural column; First complete the leveling of the comprehensive support, with the flatness within ±5mm, and then conduct rough leveling of the keel (1) to make the flatness of the keel (1) reach within ±10mm.

4. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, After installing the FFU (2) keel (1), conduct fine leveling, and use a laser level to finely adjust the flatness of the keel (1) to make the flatness of the keel (1) reach within ±5mm.

5. A method for installing an aluminum alloy FFU (2) keel ceiling in a clean room according to claim 1, characterized in that When assembling the FFU (2) keel (1), the FFU (2) keel (1) is coated with a protective film.

6. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, During the assembly process of the FUU keel (1), bolt connection is adopted. First, screw the supporting bolts to 70% - 80%, and after all the bolts of the assembled unit block are in place in the holes and initially tightened, further tighten them in the order from the middle to both sides and from the inside to the outside.

7. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, When assembling a single module of the FFU (2) keel (1), use a cross joint (11) to connect the keels (1) pairwise to form a rectangular single module, and the cross joint (11) is fixedly connected to the keel (1) through an internal hexagonal screw (12).

8. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, A horizontal adjuster (3) is installed on the keel (1), and the horizontal adjuster (3) is fixedly connected to the keel (1) through a T-shaped screw (31); a tooth rod (32) is arranged above the horizontal adjuster (3), and the tooth rod (32) is fixed by flange nuts (33).

9. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, A suspension screw rod (4) is arranged on the tooth rod (32).

10. A ceiling method for the aluminum alloy FFU (2) keel (1) in a clean room according to claim 1, characterized in that, The single-module keel (1) is connected through a T-shaped joint (13); an L-shaped joint (14) is arranged at its bending part.

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