Vacuum vertical burying heating pipe
A heating pipe and vacuum insulation technology, applied in the direction of protecting pipes, pipes, rigid pipes, etc. through heat insulation, can solve the problems such as the difficulty of vacuuming directly buried heating pipes, reduce production costs, reduce use costs, and ensure production quality effect
Inactive Publication Date: 2013-02-13
CHINA PINGMEI SHENMA GRP YANGGUANG PROPERTY
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Problems solved by technology
[0005] Therefore, the object of the present invention is to propose a vacuum direct buried heat supply pipe, which solves the problem of difficult vacuuming of the existing direct buried heat supply pipe, ensures the quality of the direct buried heat supply pipe, simplifies the installation process, and effectively reduces the production cost and cost of use
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Embodiment Construction
[0017] In conjunction with accompanying drawing, provide embodiment of the present invention as follows:
[0018] Such as figure 1 As shown: the vacuum direct buried heating pipe described in this embodiment includes a working pipe 1, an outer protective pipe 2, a vacuum insulation layer 3, and a variable-diameter outer protective pipe 4, and the two ends of the outer protective pipe 2 are variable-diameter outer protective pipes 4. The variable-diameter outer protective tube 4 and the outer protective tube 2 can be integrated, or can be arranged separately. The variable-diameter outer protective tube 4 is welded to the end of the outer protective tube 2 and the outer wall of the working tube 1 respectively, thereby forming a closed annular space between the outer wall of the working tube 1 and the inner wall of the outer protective tube 2, and in the closed annular space Insulation material is installed inside and vacuumized to form a vacuum insulation layer 3 . The ...
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The invention relates to a vacuum vertical burying heating pipe which comprises an operation pipe, an outer protecting pipe and a vacuum insulation layer, wherein the two ends of the outer protecting pipe are provided with variable-diameter outer protecting pipes; and the outer protecting pipe is sleeved outside the operation pipe, the variable-diameter outer protecting pipes at the two ends are fixedly connected with the outer wall of the operation pipe, so that a closed annular space is formed between the operation pipe and the outer protecting pipe, and the closed annular space is internally provided with a heat insulating material so as to form a vacuum heat insulating layer through vacuumizing. According to the invention, the two ends of the outer protecting pipe of the vacuum vertical burying heating pipe are designed into the variable-diameter outer protecting pipes, the vacuum vertical burying heating pipe is vacuumized in a factory before construction, and the vacuum vertical burying heating pipe is only needed to joint in construction in a field manner. The labor intensity is greatly reduced, the production efficiency is improved, the production quality of a steel sleeve steel vertical burying heating pipe is guaranteed, and the service cost is reduced; and the pipe diameter of the outer protecting pipe is smaller than that of the outer protecting pipe of the existing steel sleeve steel pipeline, and the manufacturing cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of heat supply pipes, and mainly relates to a vacuum directly buried heat supply pipe. Background technique [0002] At present, the known evacuated directly buried heating pipeline is to make steel-sheathed steel prefabricated insulation pipes (such as image 3 , Figure 4 shown), the vacuuming of the steel-sheathed prefabricated thermal insulation pipe is completed after construction, that is, several steel-sheathed steel prefabricated thermal insulation pipes are connected together in the pipe trench, and the weld 6 of the working pipe 1 is welded first. , the outer protective tube 2 is welded with the outer protective short tube 7, and the outer protective tube is ensured tightness by the outer protective tube weld 9. After the steel-sheathed steel prefabricated insulation pipe is welded and connected in the pipe trench, the insulation layer is evacuated in three sections. Each vacuum section is called ...
Claims
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Login to View More IPC IPC(8): F16L9/02F16L59/065F16L59/18
Inventor 张羡洲吴伟逊高百争
Owner CHINA PINGMEI SHENMA GRP YANGGUANG PROPERTY