Corrosion-resistant structure for corrugated pipe of glasses valve

Abstract

The utility model provides an anti-corrosion structure for a corrugated pipe of a glasses valve. The anti-corrosion structure comprises a telescopic body and the corrugated pipe, a circular ring I and a circular ring II are welded on the inner side of the telescopic body, a guide cylinder is welded on the circular ring I, a packing is embedded on the circular ring II, the packing abuts against the guide cylinder, and anti-corrosion coatings are sprayed on the inner side of the corrugated pipe, weld joints and the surface of an inner channel of the telescopic body. And through the circular ring II, the guide cylinder and the packing, corrosive condensate water is prevented from accumulating on the inner side of the corrugated pipe, meanwhile, the corrosion of welding seams on the inner sides of the corrugated pipe and the telescopic body can be effectively delayed through the anti-corrosion coating, and the service life of the valve is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of glasses valves, in particular to an anti-corrosion structure of a glasses valve bellows. Background Art

[0002] In actual use, existing eyeglass valves suffer from the highly corrosive nature of water vapor in coal gas. When condensed, the water vapor accumulates in the lower half of the valve's internal passageway, causing corrosion and penetration of the valve's cylinder, bellows, and welds, leading to gas leaks and compromised safety. Conventional corrosion protection only protects the valve's internal passageway, but not the bellows or the weld between the bellows and the expansion body, significantly shortening the valve's lifespan. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides an anti-corrosion structure of a glasses valve bellows, including a telescopic body and a bellows. Ring I and ring II are welded on the inside of the telescopic body, a guide tube is welded on ring I, and packing is embedded on ring II. The packing is in contact with the guide tube, and an anti-corrosion coating is sprayed on the inside of the bellows, each weld, and the surface of the channel inside the telescopic body.

[0004] Preferably, the telescopic body and the ring II are made of carbon steel.

[0005] Preferably, the ring I and the guide tube are made of stainless steel.

[0006] Preferably, the packing is oil-impregnated graphite packing.

[0007] Preferably, the anti-corrosion coating is an elastic anti-corrosion coating. Beneficial effects

[0008] The ring II, guide tube and packing can prevent corrosive condensed water from accumulating inside the bellows. At the same time, the anti-corrosion coating can effectively delay the corrosion of the inner welds of the bellows and expansion body, thereby extending the service life of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of the utility model.

[0010] In the figure: 1. Telescopic body; 2. Ring I; 3. Guide tube; 4. Ring II; 5. Oil-immersed graphite packing; 6. Bellows. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0012] See Figure 1 A corrugated bellows anti-corrosion structure for a glasses valve includes a bellows, a bellows, and rings I and II welded to the inside of the bellows. A guide tube is welded to ring I. The bellows and ring II are made of carbon steel, while ring I and the guide tube are made of stainless steel. Ring II is embedded with oil-impregnated graphite packing, which abuts the guide tube. An elastic anti-corrosion coating is sprayed on the inside of the bellows, the welds, and the inner channel of the bellows. Ring II, the guide tube, and the oil-impregnated graphite packing prevent the accumulation of corrosive condensate inside the bellows. The elastic anti-corrosion coating also effectively delays corrosion of the welds inside the bellows and the bellows, extending the service life of the valve.

[0013] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A corrugated pipe anti-corrosion structure for eyeglass valves, comprising a telescopic body and a bellows, characterized in that: The inner side of the telescopic body is welded with circular ring I and circular ring II, a guide tube is welded on circular ring I, and packing is embedded on circular ring II, which is in contact with the guide tube. The inner side of the bellows, each weld, and the surface of the channel inside the telescopic body are sprayed with anti-corrosion coating.

2. The anti-corrosion structure of the bellows of glasses valve according to claim 1 is characterized in that ,The telescopic body and ring II are made of carbon steel.

3. The anti-corrosion structure of the bellows of glasses valve according to claim 1 is characterized in that ,The circular ring Ⅰ and the guide tube are made of stainless steel.

4. The anti-corrosion structure of the bellows of glasses valve according to claim 1 is characterized in that , the packing is oil-impregnated graphite packing.

5. The anti-corrosion structure of the bellows of glasses valve according to claim 1 is characterized in that , the anti-corrosion coating is an elastic anti-corrosion coating.

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