CN201145505Y

CN201145505Y - High-efficiency self-destabilization heat exchange tube

Info

Publication number: CN201145505Y
Application number: CNU2007201886443U
Authority: CN
Inventors: 何景熙; 陈善地; 舒奎林
Original assignee: CHONGQING TIANRUI CHEMICAL ENGINEERING EQUIPMENT Co Ltd
Current assignee: CHONGQING TIANRUI CHEMICAL ENGINEERING EQUIPMENT Co Ltd
Priority date: 2007-12-25
Filing date: 2007-12-25
Publication date: 2008-11-05
Anticipated expiration: 2017-12-25

Abstract

The utility model relates to an efficient self-perturbing heat exchange pipe, which comprises a parent tube (1) and is characterized in that: the inside of the parent tube (1) is provided with an elastic perturbing device which consists of an elastic perturbing part (3) and a fixing part (4); one end or two ends of the elastic perturbing part (3) are fixed with the fixing part (4); and both ends of the fixing part (4) are fixed with the inner wall of the parent tube (1). The movement of the elastic perturbing part inside the efficient self-perturbing heat exchange pipe increases the fluctuation velocity of working fluid on one hand, and changes the moving status of the working fluid on the other hand, thereby increasing the turbulence scale of the working fluid and strengthening the heat exchange between the working fluid and the parent tube; in addition, the perturbing increase of the working fluid effectively restricts the generation and the deposition of fouling so as to reduce the thermal resistance and the cleaning workload of the heat exchange pipe and to increase the utilization efficiency of the heat exchange pipe.

Description

Efficiently from the disturbance heat exchanger tube

Technical field

The utility model relates to a kind of aerial cooler of the process for cooling of industries such as electric power, metallurgy, oil, chemical industry, heat exchanger tube of evaporimeter of being used for.

Background technology

Be applied to the aerial cooler of industries such as electric power, metallurgy, oil, chemical industry, the heat-exchanger rig in the evaporimeter at present, mainly be to adopt the seamless fluid steel pipe of high accuracy as heat exchanger tube, or with steel pipe as parent tube, connect some fins at its circumference upper edge axial restraint and strengthen heat exchange to increase heat exchange area.But present ubiquitous problem is: when being cooled in the parent tube or heating working medium when being high viscosity liquid, be easy to produce fouling at the inwall of parent tube, remove in case form fouling then be not easy, will increase the thermal resistance of heat exchange greatly, cause the heat exchange efficiency of heat exchanger tube to descend, also can bring certain additional thermal resistance for the heat exchanger tube that is connected with fin on the parent tube this moment, reduces the heat exchange effect.

Summary of the invention

The purpose of this utility model be to provide a kind of simple in structure, can enhanced heat exchange and effectively reduce fouling be used for aerial cooler, evaporimeter efficiently from the disturbance heat exchanger tube.

The utility model is achieved in that and a kind ofly comprises parent tube efficiently from the disturbance heat exchanger tube, it is characterized in that: set up the elastic turbulence device in described parent tube.

Above-mentioned elastic turbulence device can be made up of elastic turbulence spare and fixture; Fixedly connected with described fixture in the one or both ends of wherein said elastic turbulence spare, fixedly connected with the inwall of described parent tube in the two ends of described fixture, described fixture can be positioned at the diameter place of described parent tube inwall or a side place of diameter, can specifically determine according to the operating mode of working medium fluid.

Above-mentioned elastic turbulence spare can be coil spring or flight; Described fixture can be cylindrical or square column type.

The fin that plurality of fixed connects also can be set on the outer circumference of above-mentioned parent tube.

The utility model provide efficiently from the disturbance heat exchanger tube at the working medium fluid with certain flow velocity during by parent tube, because stopping of fixture increased flow velocity, simultaneously the working medium fluid produces impulse force because of viscosity and speed impulse to elastic turbulence spare, then the axial generation in parent tube is similar to moving back and forth of simple harmonic oscillation to elastic turbulence spare because self elasticity produces counteractive elastic force, and owing to be subjected to the influence of axially-movable and working medium fluid turbulence, elastic turbulence spare produces simultaneously radially and vibrates with hoop, these motions of elastic turbulence spare have increased the fluctuation velocity of working medium fluid on the one hand, changed the motion state of working medium fluid on the other hand, increased the turbulence level of working medium fluid, strengthen the heat exchange between working medium fluid and parent tube, strengthened the heat exchange effect.In addition, the increase of working medium flow disturbance has suppressed the generation and the deposition of dirt effectively, thereby reduces the thermal resistance of heat exchanger tube, has also reduced the cleaning amount of exchange heat pipe, improve the service efficiency of heat exchanger tube, thereby improved the cooling effectiveness of aerial cooler, evaporimeter greatly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the end face structure schematic diagram of embodiment of the present utility model;

Fig. 2 be Fig. 1 A-A to the sectional structure schematic diagram;

Fig. 3 is for adopting the structural representation of the heat-exchanger rig of efficiently forming from the disturbance heat exchanger tube among Fig. 1.

The specific embodiment

Embodiment: referring to Fig. 1, Fig. 2, a kind ofly comprise parent tube 1 efficiently from the disturbance heat exchanger tube, and the fin 2 that connects of the plurality of fixed on described parent tube 1 outer circumference, it is characterized in that: in described parent tube 1, set up the elastic turbulence device.

Described elastic turbulence device is made up of elastic turbulence spare 3 and fixture 4; The two ends of wherein said elastic turbulence spare 3 are welded to connect with described fixture 4 respectively, and the inwall of the two ends of described fixture 4 and described parent tube 1 is welded to connect.

In the present embodiment, described elastic turbulence spare 3 is a coil spring; Described fixture 4 is a square column type, and is positioned at the diameter place of described parent tube 1 inwall.

Heat-exchanger rig among Fig. 3 adopts the finned high efficient heat exchanging tube bank of being made up of the efficient heat-exchanging pipe among Fig. 17 of upper and lower two rows, fixedly connected with front header 5, rear header 6 respectively in the two ends of described finned high efficient heat exchanging tube bank 7, be connected with working medium inlet pipe 5-1 and working medium outlet pipe 5-2 respectively in the upper and lower of described front header 5, working medium enters the finned high efficient heat exchanging tube bank 7 of row by the working medium inlet pipe 5-1 of front header 5 and carries out heat exchange, the finned heat-exchanging tube bundle 7 of row carries out heat exchange again under rear header 6 conversions flow into, after the working medium outlet pipe 5-2 outflow of front header 5.

Claims

1, efficiently from the disturbance heat exchanger tube, comprise parent tube (1), it is characterized in that: in described parent tube (1), set up the elastic turbulence device.

2, described efficiently from the disturbance heat exchanger tube as claims 1, it is characterized in that: described elastic turbulence device is made up of elastic turbulence spare (3) and fixture (4); Fixedlying connected with described fixture (4) in the one or both ends of wherein said elastic turbulence spare (3), fixedlys connected with the inwall of described parent tube (1) in the two ends of described fixture (4).

3, described efficiently from the disturbance heat exchanger tube as claims 2, it is characterized in that: described elastic turbulence spare (3) is coil spring or flight; Described fixture (4) is cylindrical or square column type.

4, described as claims 1,2 or 3 efficiently from the disturbance heat exchanger tube, it is characterized in that: the fin (2) that plurality of fixed connects is set on described parent tube (1) outer circumference.