CN201780023U - Corrugated tube condenser - Google Patents

Abstract

The utility model discloses a corrugated tube condenser, which comprises a cylinder, a heat exchange tube, a tube plate and a tube box. The heat exchange tube is a corrugated tube including a large circular arc and a small circular arc which are tangent to each other; the inside and the outside of the corrugated tube are corrugated; and the corrugated tube is made of copper, stainless steel or titanium. Both the inside and the outside of the corrugated tube condenser have high condensing efficiency, simultaneously the corrugated tube condenser is high in scale prevention and removal capacity, resists high temperature, larger temperature difference, pressure difference and stress corrosion, and greatly improves overall condensing efficiency.

Description

The bellows condenser

Technical field

The utility model relates to condenser, particularly, is a kind of bellows condenser.

Background technology

Condenser is the main production equipments of chemical industries such as soda ash chemical fertilizer, also is widely used in field of petrochemical industry.Now prove, the situation of condensation efficiency and media flow is closely related, heat transfer efficiency when generally the ratio of the heat transfer efficiency when laminar flow is in turbulent flow is low, this is that fluid main flow flow velocity is fast because under the situation of turbulent flow, and wherein whirlpool is grown thickly, the fluid each several part mixes mutually, so thermal resistance is very little, thereby on the cross section vertical with fluid flow direction, the temperature between the each point fluid of turbulent flow center reaches unanimity; But near the wall place, always there is one deck fluid film (laminar sublayer) to make slow Laminar Flow along wall, and heat is before importing the cold fluid main body into, must pass through laminar sublayer in the mode of heat conduction earlier, though so laminar sublayer approaches but is the main thermal resistance of convection heat transfer' heat-transfer by convection, temperature is fallen mainly and is concentrated in the laminar sublayer.So condenser ubiquity on the market the not satisfactory problem of condensation effect at present.

The utility model content

The purpose of this utility model is to provide a kind of bellows condenser, it can reduce the laminar sublayer in the fluid and make it to form turbulence state, the ability of antiscale simultaneously, scale removal is strong, and high temperature resistant, the anti-bigger temperature difference and pressure reduction, anticorrosion stress-resistant, and total condensation efficiency improves greatly.

Concrete technical scheme of the present utility model is:

A kind of bellows condenser comprises cylindrical shell, heat exchanger tube, tube sheet and bobbin carriage, and described heat exchanger tube adopts bellows, and described bellows is tangent, interior profile of big or small circular arc such as undulatory pipe.

The material of described bellows is copper, stainless steel or titanium.

Heat exchanger tube adopts tangent, interior profile of big or small circular arc such as undulatory bellows form, when making no phase-change heat-exchange, be subjected to strong disturbance at the inside and outside mobile fluid of pipe because of tubular variation, laminar sublayer is destroyed, most of fluid is turbulence state, reaches out-tubular condensing efficient in the pipe and improves simultaneously; And during phase-change heat-exchange, because of the heat exchanger tube of bellows form than it unidimensional common heat exchanger tube tube wall attenuate, so the wall thickness thermal resistance reduces, improved condensation efficiency.Laminar sublayer as thin as a wafer also makes that the fluid friction that flows is little, thereby fluid impedance losses is little during through heat exchanger tube, and equipment energy consumption is low.In addition, the circular arc profile that bellows is special, be similar to a plurality of continuous FlexbleJoints, has very strong self compensation ability, can withstand high temperatures and the bigger temperature difference and pressure reduction, therefore can avoid weld cracking, corrosion and leakage between the heat exchanger tube that causes because of the temperature difference and pressure reduction and the tube sheet, prolong the service life of equipment.

Bellows adopts the good materials of surface smoothness such as copper, stainless steel, titanium, and the strong disturbance of fluid turbulent state makes that dirt is difficult for piling up in bellows surface in addition; Even fouling, under the effect of thermal (temperature difference) stress, the linear expansion coefficient of dirt layer and metal differs greatly, and will produce a bigger pulling-out force between dirt and the bellows surface, makes dirty sheet ftracture, come off, and promptly has the function of automatic desludging.Simultaneously, the bellows forming process does not have metal die spacing, and the metal homogeneous deformation does not have stress to concentrate, and stress distribution is even, therefore has stronger anticorrosion stress-resistant ability.

Bellows condenser of the present utility model is not dirty, stifled, not burn into non-scaling, high temperature resistant, the anti-bigger temperature difference and pressure reduction, anticorrosion stress-resistant, total condensation efficiency improves greatly, reach 3～5 times of traditional pipe bundle condenser condensation efficiency, manufacturing and maintenance cost are low simultaneously, are a kind of novel condensers of energy-conserving and environment-protective.

Description of drawings

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

Fig. 1 is the composition structural representation of bellows condenser described in the utility model;

Fig. 2 is the structural representation of bellows among Fig. 1.

Among the figure: 1, cylindrical shell; 2, heat exchanger tube; 3, carbon steel tube plate; 4, flange; 5, bobbin carriage.

The specific embodiment

Shown in Fig. 1～2, provided an embodiment of bellows condenser described in the utility model, it comprises cylindrical shell 1, heat exchanger tube 2, carbon steel tube plate 3, bobbin carriage 5, heat exchanger tube 2 adopts copper bellows, described copper bellows is tangent, interior profile of big or small circular arc such as undulatory pipe, as shown in Figure 2, carry out the intensity swelling behind its corresponding a plurality of through holes that insert on the carbon steel tube plate 3 and be connected, bobbin carriage 5 links together by flange 4 and carbon steel tube plate 3.

Because of heat exchanger tube 2 adopts tangent, interior profile of big or small circular arc such as undulatory bellows form, when making no phase-change heat-exchange, be subjected to strong disturbance at the inside and outside mobile fluid of pipe because of tubular variation, laminar sublayer is destroyed, most of fluid is turbulence state, reaches out-tubular condensing efficient in the pipe and improves simultaneously; And during phase-change heat-exchange, because of the heat exchanger tube 2 of bellows form than it unidimensional common heat exchanger tube tube wall attenuate, so the wall thickness thermal resistance reduces, improved condensation efficiency.Laminar sublayer as thin as a wafer also makes that the fluid friction that flows is little, thereby fluid impedance losses is little during through heat exchanger tube 2, and equipment energy consumption is low.In addition, the circular arc profile that bellows is special, be similar to a plurality of continuous FlexbleJoints, has very strong self compensation ability, can withstand high temperatures and the bigger temperature difference and pressure reduction, therefore can avoid weld cracking, corrosion and leakage between the heat exchanger tube that causes because of the temperature difference and pressure reduction and the tube sheet, prolong the service life of equipment.

Bellows adopts copper material, and the strong disturbance of fluid turbulent state makes that dirt is difficult for piling up in bellows surface in addition; Even fouling, under the effect of thermal (temperature difference) stress, the linear expansion coefficient of dirt layer and metal differs greatly, and will produce a bigger pulling-out force between dirt and the bellows surface, makes dirty sheet ftracture, come off, and promptly has the function of automatic desludging.

Claims (2)

1. a bellows condenser comprises cylindrical shell, heat exchanger tube, tube sheet and bobbin carriage, it is characterized in that: described heat exchanger tube adopts bellows, and described bellows is tangent, interior profile of big or small circular arc such as undulatory pipe.

2. bellows condenser according to claim 1 is characterized in that: the material of described bellows is copper, stainless steel or titanium.

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