CN101451789A - Helix tube heat exchanger - Google Patents
Helix tube heat exchanger Download PDFInfo
- Publication number
- CN101451789A CN101451789A CNA2008102426766A CN200810242676A CN101451789A CN 101451789 A CN101451789 A CN 101451789A CN A2008102426766 A CNA2008102426766 A CN A2008102426766A CN 200810242676 A CN200810242676 A CN 200810242676A CN 101451789 A CN101451789 A CN 101451789A
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- tube
- heat exchanger
- spiral
- heat exchange
- exchange tubes
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Abstract
The invention provides a heat exchanger with high heat exchanging efficiency, small resistance, difficult scale formation and small vibration, comprising an external tube with a water inlet and outlet and a plurality of spiral heat exchange tubes in the external tube; wherein the two ends of the external tube are respectively connected with a tube plate hermetically; the two ends of the heat exchange tubes are hermetically connected to the tube plate; the external tube and the spiral heat exchange tubes are straight tubes; the walls of the heat exchange tubes are provided with three spiral lines uniformly distributed on a same section; and the spiral lines between adjacent heat exchange tubes are contacted.
Description
Technical field
The present invention relates to a kind of heat exchanger.
Background technology
Common heat exchanger comprises the outer tube and curving in outer tube " bow " the shape heat exchanger tube that have intake-outlet, and the two ends of outer tube are sealedly connected with tube sheet respectively, and the two ends and the tube sheet of heat exchanger tube are tightly connected.The medium that is cooled flows in heat exchanger tube, and cooling medium (shell-side fluid) flows in the outer tube of heat exchanger tube, to realize the heat exchange of the cooling medium and the medium that is cooled.And have baffling portion in " bow " shape heat exchanger tube, and when flowing to baffling portion, cooling medium just forms the dead band, also fouling easily, and flow resistance is also bigger.So its heat exchange efficiency is low, lift is little.
Summary of the invention
The purpose of this invention is to provide the heat exchanger that a kind of heat exchange efficiency height, resistance are little, less scaling, vibration is little.
This spiral tube exchanger comprises the outer tube that has intake-outlet, a plurality of spirality heat exchanger tubes in outer tube, and the two ends of outer tube are sealedly connected with tube sheet respectively, and the two ends and the tube sheet of heat exchanger tube are tightly connected; Outer tube and spirality heat exchanger tube are straight tube; The heat exchanger tube tube wall has three helixes that are distributed on the same cross section, and the helix between the adjacent heat exchange tubes contacts.
Middle external tube of the present invention and spirality heat exchanger tube are straight tube rather than bend pipe, do not have the baffling portion in the existing common heat exchanger, so the media flow resistance are little, and be less scaling, and the power and the lift of operation water pump can reduce; The conventional heat exchanger volume of its volume ratio dwindles 25%, economical with materials 30%.Because formed a not exclusively vertical passage of sealing between the adjacent heat exchange tubes, the shell-side fluid in outer tube (as water) mainly longitudinally passage carry out vertically flowing, can overcome induced vibration well.Simultaneously because the heat exchanger tube tube wall has helix, so vertical passage also is a spirality channel, when shell-side fluid flows in the spirality vertical passage, be subjected to action of centrifugal force and periodically-varied flow direction and flowing velocity, strengthen the radially mixing of fluid, destroyed the heat exchange boundary layer, strengthened heat transfer, the utilization rate of heat exchange area has had very big increase, has improved heat exchange efficiency.
As improvement, at the inner surface of heat exchanger tube screw thread is arranged, the direction of screw thread is opposite with the hand of spiral of helix.Owing to there is screw thread opposite with hand of helix, when the medium (as freon) that is cooled flows in heat exchanger tube, flow direction and flowing velocity have been changed, strengthened the radially mixing of fluid, destroyed the heat exchange boundary layer, strengthened heat transfer, the utilization rate of heat exchange area has had very big must increasing, and has improved heat exchange efficiency.Simultaneously, the medium that is cooled also is not easy frozen, and freezing-resistance can improve.Certainly, this structure also improves heat exchanger tube compression strength.The screw thread that is preferably on the same cross section of heat exchanger tube has the 50-70 bar, and the degree of depth of screw thread is 0.13-0.2mm.
Description of drawings
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1.
The specific embodiment
Referring to spiral tube exchanger shown in Fig. 1,2, the two ends of outer tube 1 have water inlet 2, delivery port 3.A plurality of spirality heat exchanger tubes 4 are arranged in outer tube, and the two ends of outer tube are sealedly connected with flanged plate (tube sheet) 5 respectively, and the pipe section 6 and the flanged plate at heat exchanger tube two ends are tightly connected.Outer tube and spirality heat exchanger tube are straight tube.
The interlude tube wall of heat exchanger tube has three helixes 7 that are distributed on the same cross section, and the helix between the adjacent heat exchange tubes contacts.Inner surface at heat exchanger tube has the screw thread (not shown), and the direction of screw thread is opposite with the hand of spiral of helix.Screw thread on the same cross section of heat exchanger tube has 50-70 bar (as being 60), and the degree of depth is 0.13-0.20mm (as being 0.16mm).
Claims (4)
1. spiral tube exchanger comprises the outer tube that has intake-outlet and a plurality of spirality heat exchanger tubes in outer tube, and the two ends of outer tube are sealedly connected with tube sheet respectively, and the two ends and the tube sheet of heat exchanger tube are tightly connected; It is characterized in that: outer tube and spirality heat exchanger tube are straight tube; The heat exchanger tube tube wall has three helixes that are distributed on the same cross section, and the helix between the adjacent heat exchange tubes contacts.
2. spiral tube exchanger according to claim 1 is characterized in that: the inner surface at heat exchanger tube has screw thread, and the direction of screw thread is opposite with the hand of spiral of helix.
3. spiral tube exchanger according to claim 1 is characterized in that: the screw thread on the same cross section of heat exchanger tube has the 50-70 bar.
4. spiral tube exchanger according to claim 3 is characterized in that: the degree of depth of described screw thread is 0.13-0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102426766A CN101451789A (en) | 2008-12-30 | 2008-12-30 | Helix tube heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102426766A CN101451789A (en) | 2008-12-30 | 2008-12-30 | Helix tube heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101451789A true CN101451789A (en) | 2009-06-10 |
Family
ID=40734166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102426766A Pending CN101451789A (en) | 2008-12-30 | 2008-12-30 | Helix tube heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101451789A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495706A (en) * | 2016-01-29 | 2018-09-04 | 巴斯夫欧洲公司 | Cloverleaf mixer-heat exchanger |
| CN114146436A (en) * | 2021-10-29 | 2022-03-08 | 四川天宇油脂化学有限公司 | Short-range distiller for fatty amide production |
-
2008
- 2008-12-30 CN CNA2008102426766A patent/CN101451789A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108495706A (en) * | 2016-01-29 | 2018-09-04 | 巴斯夫欧洲公司 | Cloverleaf mixer-heat exchanger |
| CN114146436A (en) * | 2021-10-29 | 2022-03-08 | 四川天宇油脂化学有限公司 | Short-range distiller for fatty amide production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090610 |