CN106323049A

CN106323049A - Tube

Info

Publication number: CN106323049A
Application number: CN201510371539.2A
Authority: CN
Inventors: 吴新祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-30
Filing date: 2015-06-30
Publication date: 2017-01-11

Abstract

The invention discloses a tube which is designed for reducing the process cost of a tube casing structure. The tube is characterized by comprising an inner tube (1) and at least one layer of outer tube (2); and moreover, a spiral flow guide plate (3) is located in an annular space between adjacent tube layers, and is fixedly connected to the outer wall of the small tube and the inner wall of the large tube. The inner tube and the outer tube are both circular tubes, and are mutually concentric. At least two layers of outer tubes are provided, and the spiral directions and pitches of the spiral flow guide plates in the annular spaces of the layers are the same.

Description

A kind of tubing

Technical field

Present patent application relates to tubing, especially sleeve pipe tubing, and its application is including but not limited to heat exchanger.

Background technology

(big pipe box tubule) sleeve structure the most often has application；But have not seen sleeve pipe tubing on market.Heat exchanger producer needs to purchase big pipe and tubule respectively, then by both direct or indirect being mutually located on product structure, carrys out forming sleeves.Process costs is higher.

Summary of the invention

The purpose of present patent application is to provide a kind of tubing, to reduce the process costs of sleeve structure.

This purpose is achieved in that a kind of tubing, it is characterized in that: have inner tube and minimum one layer of outer tube；And there is spiral deflector annular space between adjacent tube layer, be fixed on outer wall and the inwall of the biggest pipe of wherein tubule.

Further, inner and outer tubes are pipe, and mutual same core.Further, there are minimum two layers of outer tube, and the rotation direction of the spiral deflector in each layer annular space is identical, pitch is identical.Such structure allows to use the tubing described in expressing technique (disposably extrusion) production.

For embodying the creativeness of this case, need to make a distinction the similar structures on product (such as heat exchanger) and tubing.Tubing can be with indefinite extension in its manufacturer；Heat exchanger producer buying tubing is cut to suitable dimension for producing heat-exchanger products.

The beneficial effect of present patent application: be first the many selections of heat exchanger producer, have an opportunity to simplify its technique.When using the tubing described in expressing technique (disposably extrusion) production, its cost advantage is obvious；Even other technique, also there is the advantage of division of labor refinement, it will usually thus (division of labor refines) makes production efficiency and economic benefit get a promotion.

Accompanying drawing explanation

With embodiment, present patent application is further illustrated below in conjunction with the accompanying drawings.

Fig. 1 is the schematic diagram of embodiment 1.

Fig. 2 is the schematic diagram after embodiment 1 hides (cutting) outer tube.The purpose of this figure is for showing internal structure.

Fig. 3 is the schematic diagram of embodiment 2.

Fig. 4 is the schematic diagram of embodiment 3.

Description of symbols in figure: 1 inner tube, 2,21,22,23 outer tubes, 3,30,31,32 spiral deflectors.

Detailed description of the invention

As it can be seen, a kind of tubing, it is characterized in that: have inner tube 1 and minimum one layer of outer tube 2；And there is the spiral deflector 3 annular space between adjacent tube layer, be fixed on outer wall and the inwall of the biggest pipe of wherein tubule.

Further, inner and outer tubes are pipe, and mutual same core.Further, as shown in Figure 3, Figure 4, there are minimum two layers of outer tube, and the rotation direction of the spiral deflector in each layer annular space is identical, pitch is identical.Such structure allows to use the tubing described in expressing technique (disposably extrusion) production.

As it is shown on figure 3, embodiment 2 has two-layer outer tube, and in inner tube, it is provided with spiral deflector 30；And the rotation direction of three helical layer deflectors (30,31,32) is identical, pitch is identical, phase place is identical.

As shown in Figure 4, embodiment 3 has two-layer outer tube, and is provided with spiral deflector 30 in inner tube；And the rotation direction of three helical layer deflectors (30,31,32) is identical, pitch is identical, phase place is different.

Claims

1. a tubing, is characterized in that: have inner tube (1) and minimum one layer of outer tube (2)；And there is the spiral deflector (3) annular space between adjacent tube layer, be fixed on outer wall and the inwall of the biggest pipe of wherein tubule.

A kind of tubing the most according to claim 1, it is characterised in that: inner and outer tubes are pipe, and mutual same core.

A kind of tubing the most according to claim 2, it is characterised in that: there are minimum two layers of outer tube, and the rotation direction of the spiral deflector in each layer annular space is identical, pitch is identical.