CN2408426Y

CN2408426Y - Striation cooling tube in cooling container

Info

Publication number: CN2408426Y
Application number: CN 00205831
Authority: CN
Inventors: 史政
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-22
Filing date: 2000-02-22
Publication date: 2000-11-29
Anticipated expiration: 2010-02-22

Abstract

The utility model relates to a striation cooling tube in a cooling container, which comprises a cross grain cooling pipe in the container and multiple pipelines connected with the container. The utility model is characterized in that the outer surface of the striation cooling tube in the cooling container is circular; the upper side thereof is provided with one layer of alloy layer with corrosion assistance and abrasion assistance, and the thickness of the alloy layer is nickel or a phosphorus alloy layer with 50 muons. The cooling container can be an oil cooler or condenser or the low-pressure heater, and the cross grain cooling pipe is formed by the rolling of naval brass light pipes or common steel light pipes. The product has the characteristics of high heat-transfer efficiency, long service life, corrosion resistance, long service life, and abrasion assistance.

Description

Band cooling tube in the cooled containers

The utility model relates to cooling tube, refers to a kind of band cooling tube that is applied in oil cooler or condenser or the low-pressure heater especially.

For a long time; all there is the problem of a seawater corrosion in China beach power plant; the cooling tube in oil cooler or the condenser particularly; since be subjected to the microbiologic(al) corrosion of seawater ammonium burn into, and water in the erosion of fine sand; the erosion of steam; have more than is needed several years of copper pipe will replace tubes; the replace tubes expense of not only will paying wages; also to shut down maintenance, influence generating; high-power station adopts expensive titanium pipe one after another for this reason; but the heat transfer of titanium only is 9% of a copper, even has the people to advise adopting common steel tube, but they all exist a price and heat-transfer effect problem.

The purpose of this utility model is: levy to the problems referred to above the intensity and the heat transfer efficiency that provide that a kind of price is low, the life-span is long, can increase cooling tube, the band cooling tube in again can wear-resisting, erosion-resisting cooled containers.

The purpose of this utility model is achieved in that the band cooling tube in a kind of cooled containers, comprise the band cooling tube and a plurality of pipelines that are connected with container that place in the container, it is characterized in that: the outer surface of the band cooling tube in the described cooled containers is sugar reed shape recklessly, which is provided with the alloy-layer of one deck corrosion-resisting wear-proof.

The purpose of this utility model also can be achieved through the following technical solutions: the corrosion-resisting wear-proof alloy-layer on the described band cooling tube is the thick nickel of 50 μ, phosphorus alloy layer; Described container can be oil cooler or condenser or low-pressure heater; Described band cooling tube is naval's bronzing pipe or ordinary steel light pipe roll forming.

Principle of the present utility model is: band cooling tube outer surface is sugar reed shape recklessly, which is provided with the alloy-layer of one deck corrosion-resisting wear-proof, very thin surface is light very again, in the band cooling tube part monophasic fluid flowing pipe that has been reinforced behind the fin, produce the axial eddy group along whole cross section, destroyed the heat transfer border, strengthened thereby monophasic fluid is conducted heat; Again because the outside of cooling tube is a steam, steam meets that cooling tube condenses into water and attached to the surface, because cooling water pressure is to groove, under the gravity effect, along the groove drippage, moisture film is very thin in the fin place at this moment again, so thermal resistance is very little, in other words: all strengthened in band cooling tube inside and outside, so claim the two sides intensify heat transfer pipe, has intensity height, characteristics that heat transfer efficiency is good.

Advantage of the present utility model is through facts have proved: heat transfer coefficient improves 30-40% than light pipe, the antiknock ability improves 26.6%, tensile strength improves 5.6%, anti-wear performance rises at double, prolongs 1.8-2.5 service life doubly, and the weight ratio light pipe alleviates 30%, so reduced cost, improved the life-span, this produce market prospect is good, and result of use is splendid in plant condenser especially.

The utility model further specifies by the following drawings and embodiment:

Fig. 1, be the user mode figure of band cooling tube in condenser

Fig. 2, be the user mode figure of band cooling tube in oil cooler

Fig. 3, be the state diagram of light pipe, band cooling tube antiknock ability under different pressures

Fig. 4, be that the Dou of band cooling tube of unlike material is to cut-away view

Referring to Fig. 1,3, band cooling tube in a kind of cooled containers, comprise the band cooling tube 4 and a plurality of pipelines that are connected with container 1 that place in the container 1, wherein the outer surface of band cooling tube 4 is sugar reed shape recklessly, which is provided with the alloy-layer 41 of one deck corrosion-resisting wear-proof, its thickness is nickel, the phosphorus alloy layer of 50 μ, and container 1 can be oil cooler or condenser or low-pressure heater, and band cooling tube 4 is bronzing pipe E of naval or ordinary steel light pipe D roll forming.

Embodiment 1: laterally place in the container 1 of condenser referring to Fig. 1, a kind of band cooling tube 4, the left end of container 1 links to each other with inlet pipeline 2, right-hand member links to each other with outlet pipeline 3, and the top at middle part links to each other with the blast pipe road 5 that steam turbine had been made merit, and the below links to each other with the outlet pipeline 6 of condensed water.During work, cooling water A is entered in the band cooling tube 4 along the direction of arrow by water inlet pipe 2, and the weary gas B that enters in the container 1 is cooled off, and discharges through outlet pipeline 3 again, carries out next circulation; Condensed water is then discharged by outlet pipeline 6.

Embodiment 2: vertically place in the container 1 of oil cooler referring to Fig. 2, a kind of band cooling tube 4, link to each other with inlet pipeline 2 under the left end of container 1, link to each other with fuel-displaced pipeline 7 on the left end, link to each other the dividing plate 5 that the inside of container 1 is evenly equipped with each other and interlaces, is arranged in parallel under the right-hand member respectively with outlet pipeline 3 and in-line 6.During work, cooling water A is from bottom to top entered in the band cooling tube 4 along the direction of arrow by water inlet pipe 2, and the deep fat C that is entered by in-line 6 is cooled off, and is discharged by outlet pipe 3 again, enters next circulation, and the oil that is cooled is then discharged by fuel-displaced pipeline 7.

Referring to A among Fig. 3, the figure is that light pipe, B are that the copper pipe of alloy-free layer, common steel tube, the D that C is the alloy-free layer are that copper pipe, the E that is coated with alloy-layer is the common steel tube that is coated with alloy-layer, more than each pipe at 308Kg/cm ²--350Kg/cm ²Effect under, A, B, C pipe produces different cracks, and at 380Kg/cm ²The pressure effect under, D, E pipe does not then produce the crack, illustrates that the antiknock ability of the copper pipe that is coated with alloy-layer and common steel tube is strong, long service life.

Referring to Fig. 4, D is the Dou cutaway view that is coated with the alloy-layer copper pipe, E is the Dou cutaway view that is coated with the common steel tube of alloy-layer, among the figure as can be known: under above-mentioned pressure effect, the distortion of the deformation ratio common steel tube of copper pipe is little, so the more copper pipe that is coated with alloy-layer that adopts in plant condenser, its effect is better.

Claims

1, the band cooling tube in a kind of cooled containers, comprise the band cooling tube and a plurality of pipelines that are connected with container that place in the container, it is characterized in that: the outer surface of the band cooling tube in the described cooled containers is sugar reed shape recklessly, which is provided with the alloy-layer of one deck corrosion-resisting wear-proof.

2, the band cooling tube in the cooled containers according to claim 1 is characterized in that: described corrosion-resisting wear-proof alloy-layer is the thick nickel of 50 μ, phosphorus alloy layer.

3, according to the band cooling tube in the described cooled containers of claim 1, it is characterized in that: described cooled containers can be oil cooler or condenser or low-pressure heater.

4, the band cooling tube in the cooled containers according to claim 1 is characterized in that: described band cooling tube is naval's bronzing pipe or ordinary steel light pipe roll forming.