CN210344566U

CN210344566U - All-welded stainless steel air pipe

Info

Publication number: CN210344566U
Application number: CN201921061729.4U
Authority: CN
Inventors: 陈云辉
Original assignee: Jiangyin Weilan Environmental Machinery Technology Co ltd
Current assignee: Jiangyin Weilan Environmental Machinery Technology Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-04-17
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a formula stainless steel tuber pipe is welded entirely, including the single section body, the tubular structure that the single section body was formed by the corrosion resistant plate welding, the terminal surface of single section body is outwards buckled and is the flange limit, is equipped with the locating hole on the flange limit, two sections single section body interconnect, and its flange limit is laminated each other, is connected by stainless steel screw nut, and the flange limit outside is equipped with the right angle strip, and the right angle strip welding is on the single section body. The utility model discloses welding method is simple to joint strength is high, and whole rigidity is high.

Description

All-welded stainless steel air pipe

Technical Field

The utility model relates to a weld formula stainless steel tuber pipe entirely.

Background

Stainless steel air ducts have been widely used in various industrial and civil air conditioning ventilation systems with high corrosion resistance requirements, conventional common-plate flange stainless steel air ducts can only be processed to be 1.2mm thick at most due to high hardness of stainless steel materials, and stainless steel angle iron flange air ducts are also one of the air ducts in the current market, but due to the fact that the common-plate flange stainless steel air ducts are made of stainless steel materials, all raw materials and processing costs are high. The air-conditioning air duct of the automobile coating process has high requirements on the tightness of a stainless steel air duct, and generally requires full welding or full welding, and the air duct is generally used for medium and high pressure systems (the residual pressure is more than 1500 pa). The existing processing method of the thickened full-line stainless steel air duct takes a stainless steel plate with the thickness of 1.5mm as an example, and comprises the following steps:

firstly, manufacturing an L-shaped or four-piece type air pipe by using a plate shearing machine according to the size of the air pipe, and bending the end surface of the air pipe by 90 degrees to form a flanging of 1CM as a welding surface with stainless steel angle iron;

secondly, fully welding joints (L sheets or four semi-finished plates) of the single air duct into a rectangle with 2 sections;

thirdly, prefabricating a flange frame of stainless steel angle iron (∠ 40 x 4) according to the size of the rectangular air pipe, and simultaneously uniformly distributing holes on the angle iron flange, wherein the hole spacing is about 15 mm;

fourthly, firstly, fully welding the inner sides of the prefabricated angle irons and the air duct flanging to form a single finished air duct with 2 sections;

fifthly, butting 2 sections of the welded stainless steel air pipes with flanges, and locking the angle iron flange edges of the two sections of the air pipes by using stainless steel screws and nuts;

sixthly, fully welding the outer side of the flange edge of the small air pipe with smaller size, and intermittently welding the inner side; the butt joint of the outer sides of the large air pipe flange edges with larger size is welded intermittently, and the inner wall is welded fully;

the following disadvantages exist with the above method:

1. the stainless steel air duct and the stainless steel flange can be welded with the same material, so that the comprehensive material cost of the main material of the air duct and the auxiliary material of the angle iron flange is obviously increased, for example, the weight of ∠ 40 x 4 stainless steel angle iron with the wall thickness of 4mm is 1.6 times that of a stainless steel plate with the thickness of 1.5 mm;

2. the labor cost of processing and welding forming the stainless steel flange is obviously increased;

3. the special processing equipment for cutting and cutting the stainless steel flange is required to be matched, so that more fixed assets are invested;

4. the workload of welding is increased, and the consumed manpower and auxiliary materials such as welding wires and argon are increased.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a full welding formula stainless steel tuber pipe, welding method is simple to joint strength is high, and whole rigidity is high.

To achieve the purpose, the utility model adopts the structure that: the utility model provides a weld formula stainless steel tuber pipe entirely, includes the single section body, and every single section body is the tubular structure that the corrosion resistant plate welding formed, and the terminal surface of single section body is the flange limit of outwards buckling, is equipped with a plurality of locating holes on the flange, and its flange limit of adjacent single section body is laminated each other, passes the locating hole interconnect through stainless steel screw nut and fixes, and the flange limit outside covers has the right angle strip, and right angle strip edge welding is on the single section body.

The right-angle strip is a section strip which is processed by a stainless steel plate with the same thickness as the single-section body and has an included angle of 90 degrees.

Intermittent welding is adopted between the right-angle strip and the single-section body.

The beneficial effects are as follows: the utility model discloses welding method is simple to joint strength is high, and whole rigidity is high.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a front view of the structure of the present invention;

fig. 2 is a side view of the structure of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1 and 2, a formula stainless steel tuber pipe entirely welds, including single section body 1, every single section body 1 is the tubular structure that the corrosion resistant plate welding formed, the terminal surface of single section body 1 is outside flange 2 of buckling, be equipped with a plurality of locating holes 3 on the flange 2, its flange 2 of adjacent single section body 1 laminates each other, it is fixed to pass 3 interconnect of locating hole through stainless

steel screw nut

5, 2 outside covers on the flange have right angle strip 4, 4 marginal weldings on single section body 1 of right angle strip.

The right-angle strip 4 is a section strip which is processed by a stainless steel plate with the same thickness as the single-section body 1 and has an included angle of 90 degrees.

Intermittent welding is adopted between the right-angle strip 4 and the single-section body 1.

Example 1

A stainless steel sheet having a thickness of 1.5mm was used as a starting material. The processing method comprises the following steps:

(1) manufacturing a stainless steel plate into an L-shaped or four-piece plate by using a plate shearing machine according to the size of an air pipe, bending the edge of the end part to form a flange edge, wherein the width of the flange edge is 2.5cm, punching a plurality of positioning holes on the flange edge, and the diameter of each positioning hole is 11 mm;

(2) fully welding the L-shaped or four-piece plate into a plurality of sections of a single-section body of the air pipe, and fully welding the butt joint of the L-shaped pieces;

(3) processing a stainless steel plate with the same thickness as the air pipe into a 90-degree right-angle strip, wherein the width of the right-angle strip is 4 cm;

(4) butting two single-section bodies, attaching flange edges to each other, and fixedly connecting the two single-section bodies through positioning holes by using stainless steel screws and nuts;

(5) the butt joint of the outer sides of the flange edges of the air pipes with smaller sizes is fully welded, the butt joint of the outer sides of the flange edges of the air pipes with larger sizes is intermittently welded, and the inner wall of the air pipe is fully welded;

(6) and buckling the right-angle strip outside the flange edge, and intermittently welding the contact surface of the right-angle strip and the single-section body.

The main material only needs to purchase a stainless steel plate, and does not need to purchase stainless steel angle iron, so that the purchase cost is greatly reduced; the main processing equipment only needs a plate shearing machine and a bending machine, and does not need stainless steel angle iron flange processing equipment, so that the investment cost of fixed assets is reduced; the processing link of stainless steel angle iron forming is omitted, the labor cost is reduced, and the processing efficiency is improved; the processing link of full-length welding connection of the stainless steel angle iron and the air pipe is omitted, welding consumables are reduced, and the number of workers is reduced; the whole weight of the single air duct is reduced, the carrying and mounting cost can be properly reduced, and time and labor are saved.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. The utility model provides a weld formula stainless steel tuber pipe entirely, a serial communication port, including single section body (1), every single section body (1) is the tubular structure that the corrosion resistant plate welding formed, the terminal surface of single section body (1) is outside flange limit (2) of buckling, be equipped with a plurality of locating holes (3) on flange limit (2), its flange limit (2) of adjacent single section body (1) laminate each other, it is fixed to pass locating hole (3) interconnect through stainless steel screw nut (5), flange limit (2) outside covers has right angle strip (4), right angle strip (4) edge welding is on single section body (1).

2. The all-welded stainless steel air duct according to claim 1, wherein the right-angle bars (4) are formed by machining stainless steel plates with the same thickness as the single-section body (1) and have an included angle of 90 degrees.

3. The all-welded stainless steel air duct according to claim 1, wherein the right-angle bars (4) and the single-section body (1) are intermittently welded.