Device for baking and curing inner anti-corrosion layer of pipe

An internal anti-corrosion layer and pipe material technology, which is applied to the surface coating device, coating, pre-treatment surface, etc., can solve the difficulty of concentrating heat energy of the circulating fan, the uneven temperature distribution of the furnace, and the inability to cure the anti-corrosion layer, etc. problems, to ensure the quality of molding and curing, prevent heat dissipation, and save energy consumption

Inactive Publication Date: 2011-03-30
SHANGHAI TUBE COTE PETROLEUM PIPE COATING
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not achieve the effect of curing the anti-corrosion layer in the early heating stage of the curing furnace, and it takes a long time to meet the curing process requirements, which is a relative waste of energy
In addition, traditional drying furnaces and curing furnaces are continuous furnaces without a volute device at the air outlet. Most of the heat is concentrated in the combustion chamber and the air outlet. uneven

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for baking and curing inner anti-corrosion layer of pipe
  • Device for baking and curing inner anti-corrosion layer of pipe
  • Device for baking and curing inner anti-corrosion layer of pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The pipe material is 5 1 / 2" drill pipe, the drying temperature of the inner anti-corrosion layer is 130°C, the baking time is 70 minutes, the curing temperature is 225°C, and the curing time is 60 minutes. The implementation effect: the performance test proves that the quality of the inner anti-corrosion layer It fully complies with the indicators in the petroleum industry drill pipe standard SY / T0544-2004; it has a good application effect in injection wells of natural and artificial drilling fluids and strong alkaline corrosive media.

Embodiment 2

[0025] The pipe material is 3 1 / 2" oil pipe, the inner anti-corrosion layer drying temperature is 120°C, the baking time is 60 minutes, the curing temperature is 220°C, and the curing time is 60 minutes. Implementation effect: the performance test proves that the coating quality is complete It complies with the indicators in the oil and casing standard SY / T6717-2008 of the petroleum industry. It has good application effect in various domestic oil fields. It has been used for a long time in oil wells with a maximum service temperature of 170°C in different formations of various corrosive media. The performance of anti-corrosion products is still good.

Embodiment 3

[0027] The pipe is a natural gas pipeline with a diameter of 219mm. The baking temperature of the inner anti-corrosion layer is 120°C, the baking temperature is 60 minutes, the curing temperature is 200°C, and the curing time is 60 minutes. Natural gas industry standard, long-term service in a highly corrosive environment, and the internal anti-corrosion layer is in good condition.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a device for baking and curing an inner anti-corrosion layer of a pipe, which comprises a baking oven, a curing oven, a heat insulation chamber and a chain conveying mechanism, wherein the heat insulation chamber is arranged between the baking oven and the curing oven and is mutually communicated with the baking oven and the curing oven, and the chain conveying mechanism sequentially passes through the baking oven, the heat insulation chamber and the curing oven to form a circulation loop. The pipe is directly conveyed from the baking oven to the curing oven by the device through the chain conveying mechanism, the cooling of the pipe baked by the baking oven can be effectively prevented through the heat insulation chamber, therefore, the energy can be saved, and the consumption can be reduced; the heat energy can be effectively collected through a worm case arranged in the oven, the stability and the uniformity of the circulated air supply can be ensured, the heat balance in a hearth can be ensured, meanwhile, the heat energy is prevented from being spread out, and the energy consumption can be saved.

Description

technical field [0001] The invention relates to a pipe material processing equipment, in particular to a device for drying and curing the inner anti-corrosion layer of the pipe material. Background technique [0002] In many fields, such as pipes used in the petroleum industry, anti-corrosion treatment is required, especially internal anti-corrosion treatment. During the treatment of the inner anti-corrosion layer of the pipe, it includes drying and curing the inner anti-corrosion layer. At present, most enterprises use a batch furnace or a single curing furnace to cure the inner anti-corrosion layer. This kind of processing method not only occupies a large area for frame storage and wastes energy, but also the temperature in the furnace is not uniform, resulting in unsatisfactory molding quality of the inner anti-corrosion layer. Another way is to use two independent continuous furnaces. First, the anti-corrosion layer is dried by a drying furnace. After cooling, it is se...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B05D3/02B05C13/02B05C21/00
Inventor 曹育红徐晓旻张赤谢从振肖九强
Owner SHANGHAI TUBE COTE PETROLEUM PIPE COATING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products