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Drainage device of steel-sleeve steel steam insulation pipe

A technology for thermal insulation pipelines and steel sleeves, which is applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc. It can solve problems such as pipeline corrosion and accumulation, and achieve the advantages of improving strength, simplifying welding process, and improving thermal insulation effect. Effect

Inactive Publication Date: 2010-03-10
刘毅 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the steam condenses into liquid, it will stay on the inner wall of the inner casing. When the pipe has a height difference in the vertical direction, the liquid will relatively accumulate in the recess of the pipe, causing water hammer in steam transportation and corrosion of the pipe.

Method used

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  • Drainage device of steel-sleeve steel steam insulation pipe
  • Drainage device of steel-sleeve steel steam insulation pipe
  • Drainage device of steel-sleeve steel steam insulation pipe

Examples

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Embodiment Construction

[0018] control Figure 1-2 , to illustrate the specific technical solutions of the present invention. In this embodiment, the steel jacketed steel steam insulation pipeline drainage device includes:

[0019] A piece of inner steel pipe (Q235B) with a diameter of 273mm; a piece of outer steel pipe (Q235B) with a diameter of 529mm matched with the inner steel pipe; the insulation material and supporting mechanism between the inner steel pipe and the outer steel pipe; The inner sleeve of the water collection tank in the middle of the steel pipe and directly below it vertically, the upper part of the inner sleeve of the water collection tank is connected with the inner steel pipe through the drain hole at the lower part of the inner steel pipe, the diameter of the drain hole is 8 mm, and the interval is 25 mm, and It is connected with the inner sleeve steel pipe by welding; the jacket of the water collection tank matched with the inner sleeve of the water collection tank; the ins...

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PUM

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Abstract

The invention relates to a drainage device of a steel-sleeve steel steam insulation pipe, which comprises a section of inner sleeve steel pipe, a section of outer sleeve steel pipe, insulation material, a supporting mechanism, a header tank inner sleeve, an outlet entrance, a header tank outer sleeve, insulation material, a discharge opening arranged at the bottom of the header tank inner sleeve,another discharge opening arranged at the matched header tank outer sleeve, and erosion resistant coating sleeved outside the outer sleeve steel pipe and at the outer part and at the bottom of the header tank outer sleeve, wherein water in the discharge openings is discharged in a discharge well by an external pipe. The invention avoids digging a hole at the lower side of the inner sleeve steel pipe, simplifies the welding technology and also ensures the strength of the inner sleeve steel pipe.

Description

technical field [0001] The invention relates to a heat-insulated steam delivery pipeline, and further relates to a water-dampening device for a steel-sheathed steel steam heat preservation pipeline. Background technique [0002] Steel-sheathed steel steam insulation pipeline is a new technology developed in recent years, which is used to transport high-temperature steam (250-350°C). Its structure basically includes an inner steel pipe and an outer steel pipe, and some insulation materials are filled in the middle. When the steam condenses into liquid, it will stay on the inner wall of the inner casing. When the pipe has a height difference in the vertical direction, the liquid will relatively accumulate in the recess of the pipe, causing water hammer in steam transportation and corrosion of the pipe. Therefore, it is necessary to install a water delivery device at the relative depression of the pipeline to discharge the liquid in time. Contents of the invention [0003] ...

Claims

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Application Information

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IPC IPC(8): F17D3/14F17D1/18
Inventor 刘毅朱秀红
Owner 刘毅
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