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Inside Of Bend Tube Shield

 

Inside Of Bend Tube Shield


Inside of bend tube shield is used to reduce excessive wear of boiler tubes under the extreme conditions prevalent in fossil fuel fired boilers, Sunny Steel is able to manufacture and supply Inside of bend tube shield solutions to protect and reduce all applicable boiler related of wear.

Shapes and specifications of tube shields

The cross-sectional shape of boiler tubes shields is mostly semi-circular (180 degrees), and there are also 120-160 degrees. It is mainly used on finned tubes (water-cooled walls); boiler tube erosion shields are divided into direct wear-resistant shields, in-curve, anti-wear shields, outer-curve, anti-wear shields, side-curve anti-wear shields, s-curve anti-wear shields, etc.

Tube shields-outside bend and side bend types


The length of the straight anti-wear shields ranges from 20mm to 3000mm, and the general length of 1000-2000mm is commonly used. The anti-wear shields with bends generally requires a processing drawing and the following parameters should be on the drawing: outer diameter of the pipe used, bending of the pipe Radius R (to the center of the pipe), the degree of bending angle, and the length of the straight sections on both sides of the arc segment of the wear-resistant shields.

“snap-on” type shield


The most basic parameter of boiler tubes shields is the outer diameter of the tube used (that is, the inner diameter of boiler tubes erosion shields). The main specifications of the tube are: 32, 38, 42, 44.5, 48, 51, 57, 60, 63.5 , 76, 89mm, etc . the inner diameter of the boiler tubes erosion shields is usually 1-3mm larger than the outer diameter of the tube used, depending on the actual requirements.

Tube shields production process

To ensure the accuracy of the material. Positive Material Identification (PMI) of stainless steel sheets for tube shields is critical to verifying the grade and composition of stainless steel before it goes into production.
Tube shields from us are manufactured to exacting standards. Advanced equipment and material handling capabilities permit us to offer the fastest turnaround times anywhere.

The current production process for tube shields is to use high-pressure presses and professional moulds for pressing.
The production time is short, the welding performance is good, the welding seam does not fall off, the surface is smooth and the appearance is beautiful. The arc-shaped wear-resistant tile is pressed on a press or bent on a pipe bender with a special mould.


Material

Different types of stainless steel are selected according to the specific conditions of different working conditions. Common materials are: TP321 (Cr18Ni9Ti), TP309S (Cr23Ni13), 1Cr20Ni14Si2, TP310S (Cr25Ni20), 1Cr25Ni20Si2, and some low temperature areas (such as low temperature superheater, low temperature reheater) are made of 1Cr13, 1Cr6Si2Mo and other materials.

The boiler was originally designed to be accurate. Different materials have different temperature resistance and mechanical strength. 1Cr13, 1Cr6Si2Mo generally has a temperature resistance of 600 ℃ or less.

Main material of tube erosion shields

Material（Grade）Temperature resistanceYield strengthTensile strengthElongationHBHRBHV
1Cr18Ni9Ti925 ℃≥205MPa≥520MPa≥40%≤187≤90≤200
Cr23Ni131095 ℃≥205MPa≥520MPa≥40%≤187≤90≤200
1Cr20Ni14Si21095 ℃---≥590MPa≥40%---------
Cr25Ni201150 ℃≥205MPa≥520MPa≥40%≤187≤90≤200
1Cr25Ni20Si21150 ℃---≥540MPa≥35%---------

We can also supply boiler tube erosion shields of other materials.

Advantages

Tube shields are custom made to fit perfectly to straight sections, curved sections and even finned and specialised tubing.

Boiler tube erosion shields, also known as anti-corrosion shields, anti-wear plate, anti-wear protection shields, anti-wear cover plate, anti-corrosion cover plate, boiler climbing pipe, anti-wear pressure plate, etc. , which are used in combination with snap rings.

Boiler tube erosion shields are produced using a high-pressure press and professional mould pressing. The production time is short, the welding performance is good, the welding should not fall off, the surface is smooth, and the appearance is beautiful. Boiler tube erosion shields with bends are formed by pressing on a press or bending with a special abrasive on a tube bender.

Boiler tube shields are designed to eliminate major maintenance and downtime costs from boiler and condenser tube failure.


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Boiler Tubes Erosion Shields

Boiler Tubes Erosion Shields, also known as anti-corrosion Shields, anti-wear plate, anti-wear protection Shields, anti-wear cover plate, anti-corrosion cover plate, boiler climbing pipe, anti-wear pressure plate, etc. , which are used in combination with snap rings. Processing thickness of Boiler Tubes Erosion Shields Boiler Tubes Erosion Shields are processed in thicknesses of 2mm, 3mm, 4mm, and 5mm. Different thickness is adopted according to the wear severity and the need of heat conduction. Boiler Tubes Erosion Shields are produced using a high-pressure press and professional mold pressing. The production time is short, the welding performance is good, the welding should not fall off, the surface is smooth, and the appearance is beautiful. Boiler Tubes Erosion Shields with bends are formed by pressing on a press or bending with a special abrasive on a tube bender. Boiler erssion shield for protection boiler tube Boiler Erosion Shields Ash content, high furnace temperature, increas...
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Application of Tubes Erosion Shields

Tubes Erosion Shields are mainly used on the windward side of the heating surface of the boiler, such as superheaters, reheaters, economizers, and water-cooled wall pipes. The main role is to protect the heating surface of the boiler pipes, reduce pipeline wear, and increase the heating surface of the pipes. Service life. In general, most of them are called "wear-resistant tile" and "wear-resistant cover plate". Erosion Shields are special boiler accessories. Generally, most of them are used in power station boilers, small boilers are used less, and some coal chemical industries will also use them. Erosion shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life. We offer shielding for tubing, covering straight, bent and finned sections, as well as the clips that hold these in place. In the long term, these shields more than pay for themselves, preventing the costly replacement o...
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Snap rings for Tubes Erosion Shields

Snap rings are used in conjunction with Boiler Tubes Erosion Shields, which is a clip that easily installs Boiler Tubes Erosion Shields to the tube. The snap ring and Boiler Tubes Erosion Shields are overlapped and welded, generally about 190-200 degrees Erosion Shields is a 180-degree semicircle), but also leave a welding position for easy welding and fixing. Generally, each piece of Boiler Tubes Erosion Shields needs to be equipped with 2-4 snap rings with a pitch of 200-500mm. The anti-wear snap ring is also called clamp, buckle, tube clamp, etc. The main role of the anti-wear tile snap ring: the role of fixing the anti-wear tile to avoid problems such as the anti-wear tile falling off during installation. The types of common anti-wear tile rings can be divided into: U-shaped lap type snap ring, butt-type semicircular snap ring. Install erosion shields with snap ring The snap ring is a short section that is installed on the pipe in conjunction with the wear-resistant tile. Generally...
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