Installation technology of air pipe penetrating through protection area
By pre-making hole reservation tools in the protection area, the problems of low efficiency of air duct installation and unsatisfactory protection effect in the protection area are solved, and efficient and low-cost air duct installation and high-quality protection effect are achieved.
Patent Information
- Application Number
- CN202511105688.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2025-09-12
AI Technical Summary
In the existing technology, the installation efficiency of air ducts passing through the protection area is low and the protection effect is not ideal. Especially in the protection area of the hospital, the construction is difficult and there is a risk of substandard quality.
Using hole reservation tools, a tubular structure composed of precast concrete blocks and lead plates is prefabricated to pass through the protective wall. When installing the air duct, only the junction needs to be sealed to avoid opening holes later and using lead sheets for sealing.
It improves installation efficiency, ensures protection effect, reduces workload, improves construction quality and appearance, and has low cost and simple structure.
Smart Images

Figure CN120625832A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of installing air ducts passing through a radiation protection area of a hospital, and in particular to an installation process of air ducts passing through a radiation protection area. Background Art
[0002] Hospital projects have a large number of protective areas. The walls of these protective areas are thick and difficult to open holes in the later stages. At the same time, radiation protection projects are special professions and must be inspected and accepted by professional testing units. If the quality is unqualified, it will not only have a serious impact on the health of medical staff, but also cause harm to patients and the general public.
[0003] Since hospital protective rooms require a lot of ventilation, there are a large number of air ducts in the protective area. The air ducts need to pass through the protective wall when they are installed. However, most of the existing installations of air ducts passing through the protective area are done by drilling holes in the protective wall at a later stage. After the pipes are installed, they are sealed with lead sheets on all sides. This not only requires a lot of work and has low installation efficiency, but also because the holes are irregular, the protective effect after sealing is not ideal. Summary of the Invention
[0004] In order to solve the above technical problems, the present invention provides an installation process for an air duct passing through a protection zone, which has high installation efficiency, good protection effect, and can improve the quality of the entity.
[0005] To achieve this technical purpose, the present invention adopts the following scheme: A process for installing an air duct passing through a protected area includes the following steps: 1. Make tools for hole reservation; 2. Main construction: Build the prepared hole reservation tools at the installation location of the air duct; 3. Air duct installation: Pass the air duct through the hole reserved tool, and use lead to seal the junction of the air duct and the hole reserved tool.
[0006] Furthermore, the hole reservation tool is a tubular structure, and the hole reservation tool is made of a precast concrete block and a lead plate. The lead plate is arranged on the inner wall of the precast concrete block and extends out of the precast concrete block.
[0007] Furthermore, the preparation method of the hole reservation tool is: according to the design requirements, a concrete precast block mold for the air duct to pass through is made, and the thickness of the mold is the same as the thickness of the masonry wall in the protection area; after the mold customization is completed, the inner surface is coated with a release agent, concrete is poured, vibrated to compact it, and watered for maintenance; after the strength reaches the standard, the inside of the concrete precast block is wrapped with a lead plate, and lead plates are reserved at both ends and stored uniformly for use.
[0008] Furthermore, when making the reserved tools for the opening, the concrete poured when casting the prefabricated concrete blocks is of the same type as the concrete used during the construction of the main body of the protection area.
[0009] Furthermore, when the lead plate is wrapped inside the precast concrete block, it is reinforced with glue to ensure the wrapping effect.
[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention prefabricates the hole-reserving tool and installs it simultaneously with the main construction phase, eliminating the need for subsequent wall drilling and reducing workload. The hole-reserving tool is protected by lead sheeting, significantly improving efficiency and protective effectiveness during subsequent duct installation. The hole-reserving tool boasts a simple structure, is easy to manufacture, and is low-cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 Schematic diagram of a hole reservation tool in an embodiment of the present invention; Figure 2 A top view of a hole reservation tool according to an embodiment of the present invention; Figure 3 This is a main view of a hole reservation tool in an embodiment of the present invention; Figure 4 This is a schematic diagram of the completion of air duct installation in an embodiment of the present invention.
[0012] Marked in the figure: 1. Hole reservation tools; 2. Lead plate; 3. Air duct; 4. Lead sheet. DETAILED DESCRIPTION
[0013] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific embodiments, but the present invention is not limited thereto.
[0014] See also Figures 1 to 4 The present invention provides a process for installing an air duct passing through a protection zone, comprising the following steps: 1. Make a hole reservation tool 1; the hole reservation tool 1 is a tubular structure, and the hole reservation tool 1 is made of a prefabricated concrete block and a lead plate 2. The lead plate 2 is set on the inner wall of the prefabricated concrete block and extends out of the prefabricated concrete block.
[0015] The preparation method for the hole reservation tool 1 is as follows: During the main construction period, a precast concrete block mold with the same specifications as the air duct 3 is made using a template according to the HVAC design drawings. The mold thickness matches the thickness of the masonry wall in the protection area, and the mold size is determined according to the designed dimensions of the air duct 3 to facilitate the passage of the air duct 3 later. After the mold is customized, a release agent is applied to the inner surface, and concrete is poured with the same concrete type as used in the main construction of the protection area. The concrete is vibrated and compacted, and then watered for curing. After the strength reaches the required level, the interior of the precast concrete block is wrapped with lead plates 2, leaving lead plates 2 at both ends and stored for future use. The hole reservation tool 1 is installed simultaneously with the masonry of the protection area wall.
[0016] In a specific embodiment, when the lead plate 2 is wrapped inside the prefabricated concrete block, it is reinforced with glue to ensure the wrapping effect.
[0017] In a specific embodiment, when the concrete precast block is wrapped with the lead plate 2, the lead plate 2 is reserved along the direction of the pipe passing through, and the length of the reserved lead plate 2 is 200 mm. After the air duct 3 is installed, the reserved lead plate 2 is used to wrap the air duct 3 for radiation protection, thereby further improving the protection effect.
[0018] 2. Main construction: Build the prepared hole reservation tool 1 at the installation position of the air duct 3; 3. Installation of the air duct 3: Pass the air duct 3 through the hole reserved tool 1, and use lead sheet 4 to seal the junction of the air duct 3 and the hole reserved tool 1.
[0019] Compared with the prior art, the present invention has the following characteristics: ① Using the hole pre-reservation tool 1, you avoid drilling holes in the wall later, reducing workload and ensuring a neat, visually appealing hole. Because the precast concrete blocks are pre-protected with lead sheeting 2, after installing the air duct 3, only three-centimeter-wide lead sheeting 4 is required to seal the intersection of the pre-reserved lead sheet 2 and the air duct 3. This increases installation efficiency and significantly improves protection.
[0020] ② The hole reservation tool 1 has a simple structure, is easy to manufacture and has low cost.
[0021] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art may make changes and modifications to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered to be within the scope of protection of the present invention.
Claims
1. A process for installing an air duct passing through a protection zone, characterized in that: The following steps are involved:
1. Make a hole reservation tool (1); 2. Main construction: Build the prepared hole reservation tool (1) at the installation location of the air duct (3); 3. Installation of the air duct (3): Pass the air duct (3) through the hole reservation tool (1), and use lead sheet (4) to seal the junction between the air duct (3) and the hole reservation tool (1).
2. The installation process of the air duct passing through the protection zone according to claim 1 is characterized in that: The hole reservation tool (1) is a tubular structure. The hole reservation tool (1) is made of a concrete prefabricated block and a lead plate (2). The lead plate (2) is arranged on the inner wall of the concrete prefabricated block and extends out of the concrete prefabricated block.
3. The installation process of the air duct passing through the protection zone according to claim 2, characterized in that: The preparation method of the hole reservation tool (1) is as follows: according to the design requirements, a concrete prefabricated block mold for the air duct (3) to pass through is made, and the thickness of the mold is the same as the thickness of the masonry wall in the protection area; after the mold is customized, a release agent is applied to the inner surface, concrete is poured, vibrated and compacted, and watered for maintenance; after the strength reaches the standard, the inside of the concrete prefabricated block is wrapped with a lead plate (2), and the lead plates (2) are reserved at both ends and stored uniformly for use.
4. The installation process of the air duct passing through the protection zone according to claim 3 is characterized in that: When making the hole reservation tool (1), the concrete poured when pouring the concrete prefabricated block is the same as the concrete type when constructing the main body of the protection area.
5. The installation process of the air duct passing through the protection zone according to claim 3, characterized in that: When the lead plate (2) is wrapped inside the concrete prefabricated block, it is reinforced with glue to ensure the wrapping effect.