CN210196671U

CN210196671U - Novel galvanized pipe

Info

Publication number: CN210196671U
Application number: CN201921129716.6U
Authority: CN
Inventors: Xuefeng Zhang; 张雪峰
Original assignee: Tianjin Fuyi Metal Products Co Ltd
Current assignee: Tianjin Fuyi Metal Products Co Ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-03-27
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a novel galvanized pipe belongs to galvanized pipe technical field, and it is poor to have solved galvanized pipe heat preservation effect among the prior art, problem that life is short, including the galvanized steel pipe, galvanized steel pipe internal surface is equipped with the galvanizing coat respectively with the surface, all be equipped with the passivation layer on the galvanizing coat surface, the galvanizing steel pipe endotheca is equipped with inside lining plastic tubing, inside lining plastic tubing with be equipped with thermal-insulated fibre layer between the galvanizing steel pipe, galvanizing steel pipe overcoat is equipped with carbon cloth, carbon cloth with be equipped with the heat preservation between the galvanizing steel pipe. The utility model discloses an inside and outside double-deck insulation construction, it is effectual to keep warm, and the practicality is strong, and manufacturing cost is not high.

Description

Novel galvanized pipe

Technical Field

The utility model belongs to the technical field of the galvanized pipe, concretely relates to novel galvanized pipe.

Background

Galvanized pipe, also known as galvanized steel pipe, is divided into hot galvanizing and electrogalvanizing, the hot galvanized pipe is made by reacting molten metal with iron matrix to produce alloy layer, so as to combine the matrix and the coating, the hot galvanizing is to acid wash the steel pipe first, in order to remove iron oxide on the surface of the steel pipe, after acid wash, wash the steel pipe in ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then send the steel pipe into a hot dipping tank.

The hot galvanizing has the advantages of uniform plating layer, strong adhesive force and the like. However, the galvanized pipe has an insufficient heat insulation effect, the inside of the galvanized pipe is easy to rust after long-term use, the inner wall of the galvanized pipe becomes unsmooth, and the galvanized pipe is often buried in soil for use, so that the galvanized pipe is damaged more quickly if the galvanized pipe is corroded by acidic substances in the soil for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem:

to above-mentioned technical shortcoming, the problem that the galvanized pipe thermal insulation effect is poor among the solution prior art, life is short, the utility model provides a novel galvanized pipe.

The utility model discloses technical scheme:

the utility model provides a novel galvanized pipe, including the galvanized steel pipe, galvanized steel pipe internal surface is equipped with the galvanizing coat respectively with the surface, all be equipped with the passivation layer on the galvanizing coat surface, the galvanized steel pipe endotheca is equipped with inside lining plastic tubing, inside lining plastic tubing with be equipped with thermal-insulated fibre layer between the galvanized steel pipe, galvanized steel pipe overcoat is equipped with carbon cloth, and carbon cloth can not rust, extensively is applicable to the corrosivity place, carbon cloth with be equipped with the heat preservation between the galvanized steel pipe.

Optionally, the galvanized layer is 18 μm thick.

Optionally, the lining plastic pipe is made of heat-resistant PE material, the PE is connected with the galvanized steel pipe through heat sealing, and the PE has good corrosion resistance.

Optionally, the filling material of the heat insulation layer is a polyurethane elastic material, so that the heat insulation effect can be achieved, the elasticity of the galvanized steel pipe can be increased, and a certain buffering effect on external impact force can be achieved.

Optionally, the passivation layer is formed by trivalent chromium passivation, and is more environment-friendly and safer compared with hexavalent chromium.

The utility model discloses beneficial effect:

compared with the prior art, the beneficial effects of this application are: (1) the double-layer heat preservation structure is adopted, and the heat preservation structure can be used under the condition of lower ambient temperature. (2) The utility model has the characteristics of the rigidity is good, intensity is high, collision-resistant and do not have rusty.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of the present invention.

Reference numbers in the figures: 1-galvanized steel pipe; 2-zinc coating; 3-a passivation layer; 4-lining a plastic pipe; 5-a thermal insulation fiber layer; 6-insulating layer; 7-carbon fiber cloth

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

The utility model provides a novel galvanized pipe, including galvanized

steel pipe

1, 1 internal surface of galvanized steel pipe is equipped with galvanizing coat 2 respectively with the surface, 2 thickness on galvanizing coat are 18 mu m. All be equipped with passivation layer 3 on the galvanizing coat surface, passivation layer 3 is passivated by trivalent chromium and forms, and is environmental protection safety relatively hexavalent chromium. The galvanized steel pipe 1 is internally sleeved with a lining plastic pipe 4, the lining plastic pipe 4 is made of heat-resistant PE (polyethylene) materials, the PE is connected with the galvanized steel pipe 1 through heat sealing, and the PE has good corrosion resistance. Inside lining plastic tubing 4 with be equipped with thermal-insulated fibrous layer 5 between the galvanized

steel pipe

1, 1 overcoat of galvanized steel pipe is equipped with carbon cloth 7, and carbon cloth 7 can not rust, extensively is applicable to the corrosivity place, carbon cloth 7 with be equipped with heat preservation 6 between the galvanized steel pipe 1, 6 filling material in heat preservation are polyurethane elastic material, both can play the heat preservation effect, can increase the elasticity of galvanized steel pipe 1 again, have certain cushioning effect to the impact force of coming.

During the use, water or other medium flow in inside lining plastic tube 4, avoid the galvanized steel pipe 1 in the direct corrosion outside, play increase of service life's effect, adopt double-deck insulation construction, also can use under the lower condition of ambient temperature, polyurethane elastic material both can play the heat preservation effect, can increase the elasticity of plating steel zinc pipe 1 again, has certain cushioning effect to the external impact force, the utility model has the characteristics of the rigidity is good, intensity is high, collision-resistant and do not have rusty.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the solution described above with a specific combination of features.

Claims

1. A novel galvanized pipe is characterized in that: including galvanized steel pipe (1), galvanized steel pipe is intraductal (1) surface and surface are equipped with galvanizing coat (2) respectively, all be equipped with passivation layer (3) on galvanizing coat (2) surface, galvanized steel pipe (1) endotheca is equipped with inside lining plastic tubing (4), inside lining plastic tubing (4) with be equipped with thermal-insulated fibrous layer (5) between galvanized steel pipe (1), galvanized steel pipe (1) overcoat is equipped with carbon cloth (7), carbon cloth (7) with be equipped with heat preservation (6) between galvanized steel pipe (1).

2. A novel galvanized pipe as set forth in claim 1, characterized in that: the thickness of the galvanized layer is 15-20 mu m.

3. A novel galvanized pipe as set forth in claim 2, characterized in that: the lining plastic pipe (4) is made of heat-resistant PE material.

4. A novel galvanized pipe as set forth in claim 3, characterized in that: the filling material of the heat-insulating layer (6) is polyurethane elastic material.

5. The novel galvanized pipe as set forth in claim 4, characterized in that: the passivation layer (3) is formed by trivalent chromium passivation.