CN2653417Y - Three phase fluidized on-line cleaning type horizontal tube heat exchanger for dirt of outside pipe - Google Patents
Three phase fluidized on-line cleaning type horizontal tube heat exchanger for dirt of outside pipe Download PDFInfo
- Publication number
- CN2653417Y CN2653417Y CN 03227900 CN03227900U CN2653417Y CN 2653417 Y CN2653417 Y CN 2653417Y CN 03227900 CN03227900 CN 03227900 CN 03227900 U CN03227900 U CN 03227900U CN 2653417 Y CN2653417 Y CN 2653417Y
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- pipe
- heat exchanger
- fluidization
- dirt
- gas distribution
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Abstract
The utility model relates to a horizontal multitube exchanger used for the external pipe fouling triphase fluidization on line wash. The utility model comprises a distribution air pipe arranged at the bottom of a shell; a plurality of oblique fumaroles or air nozzles are arranged on the distribution air pipe; the spurted washing gas fluidizes the shell pass liquid and the solids acutely, forming the circumferential natural circulating flowing of the transverse section and the axial natural circulating flowing of the longitudinal section; thereby, the fouling outside the pipe is quickly and evenly eliminated by washing, and the gas is exhausted by the gas outlet. Therefore, the utility model has the advantages of high speed, evenness, low cost, no pollution and guaranteeing the long-term highly efficient operation of the heat exchanger.
Description
Technical field
The utility model patent relates to the horizontal tubular heat exchanger of the outer dirt three-phase fluidization on-line cleaning type of pipe.This heat exchanger can be widely used in the periodicity on-line cleaning of the outer dirt of various tubular heat exchanger pipes.
Background technology
The present horizontal tubular heat exchanger that uses, shell side liquid can't carry out the machinery cleaning after the fouling outside pipe in running.Almost be single chemical cleaning method, but owing to structural reason, clean lack of homogeneity, effect is bad, and causes local corrosion easily.Therefore, manage outer dirt and can't in time clean and remove, operational efficiency descends gradually, worsens, even partial occlusion, and causing lost efficacy ahead of time scraps, and has a strong impact on service life.
Summary of the invention
The utility model patent is intended to solve the online Rapid Cleaning problem of the outer dirt of this horizontal tubular heat exchanger pipe, proposes the outer horizontal tubular heat exchanger of dirt three-phase fluidization on-line cleaning type of a kind of pipe.The characteristics of the utility model patent are that horizontal tubular heat exchanger can clean by the three-phase circulating fluidization, the outer dirt of property performance period, online, quick, even removing pipe, reach the purpose that keeps long-term efficient operation, and keep basic structure constant, installation cost under the same load increases hardly, and cleaning charge is very cheap.
The technical scheme of the utility model patent is:
The outer horizontal tubular heat exchanger of dirt three-phase fluidization on-line cleaning type of a kind of pipe, heat exchanger are by heat-transfer pipe, and housing, gas distribution pipe, exhaust outlet, overfall, upstream chamber, downstream chamber constitute.The housing bottom design has two groups of gas distribution pipes, and the pipe number of each group gas distribution pipe is 1～4, and diameter of the housing is healed big radical just the more.Offer supply gas inclined hole or oblique nozzle on the gas distribution pipe, the axial flow of the incline direction of inclined hole or nozzle and shell side liquid is to opposite.The solids that usefulness is cleaned in fluidization are equipped with in the bottom of shell side.The top design of housing has exhaust outlet.The top of housing, the height place that is substantially top heat-transfer pipe offers overfall.
When needing the outer dirt of scavenge pipe in the production run process, open wherein air delivery valve, exhaust outlet and the overfall of one group of gas distribution pipe, close the shell side outlet valve.Under the drive of purge gas, shell side liquid and fluidization particle are with a large amount of bubble rising strenuous exercise, and to the liquid level by overfall control, gas and shell side liquid, fluidization separate particles are discharged through exhaust outlet.Shell side liquid and fluidization particle then descend by another group gas distribution pipe zone circulation of not supplying gas, and realize circumferentially circulating of shell side.Liquid and fluidization particle are carried out the cleaning of tube outer surface dirt in crossing the violent process of flowing of tubulation.After treating that heat-transfer pipe cleans up substantially towards the front half cycle that circumferentially circulates, close this half side air delivery valve, open another half side air delivery valve, the circumferential circular flow that changes the three-phase fluidization washing fluid to.Like this result of exchange has solved the Fouling Cleaning non-uniformity problem of the tubulation front and back that unidirectional circular flow flings.In the cleaning process, the fluidization particle is simultaneously with the axial flow of shell side liquid moving to Way out progressively, but drop to the back, bottom by the gas loopback of jet inclined hole or nozzle ejection, the axial circulation in shell side that realizes the fluidization particle thus flows, and ensures the axial uniformity of the outer Fouling Cleaning of tubulation.Because the flow regime of three-phase fluidization cleaning fluid is very violent, the speed of Fouling Cleaning is fast, and the time is short, good uniformity, not only the heat exchange efficiency in the cleaning process can not descend, can strengthen rising to some extent on the contrary.Therefore, advantage online, quick, even cleaning that this heat exchanger has can the long-term of support equipment efficiently be moved.
Description of drawings
Fig. 1 is the outer horizontal tubular heat exchanger schematic diagram of dirt three-phase fluidization on-line cleaning type of the pipe of the utility model patent.
Fig. 2 is the circumferential circulation three-phase fluidization on-line cleaning structure principle chart of the horizontal tubular heat exchanger of analysing and observe amplification of the B-B among Fig. 1.
Fig. 3 is the air nozzle figure that amplification is analysed and observe by the A portion among Fig. 1.
Fig. 4 is the jet hole pattern that amplification is analysed and observe by the C portion among Fig. 2.
Specific embodiments
Specific embodiments below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4 explanation the utility model patents:
1. housings, 2. heat-transfer pipes, 3. jet inclined hole 4. gas distribution pipes 5. rod baffle E 6. rod baffle F 7. particle axial circulation 8. tube side fluid imports 9. exhaust outlets 10. overfalls 11. shell side liquid outlets 12. tube side fluid among the figure export circumferentially dirty 19. pipe bridge maximum cross-section G-G, the 20. jet oblique mouth 21. shell side liquid-inlets of circulation of the upwards mobile 16. fluidization particles of 13. left half air delivery valve, 14. right half air delivery valve, 15. particles 17. gas-liquid separation faces 18.
When managing outer Fouling Cleaning in the running, open wherein one group of gas distribution pipe air delivery valve 14, exhaust outlet 9 and overfall 10, close shell side liquid outlet 11.After the speed of G-G19 place, pipe bridge maximum cross-section purge gas surpasses the particle velocity movement value, purge gas is after jet inclined hole 3 enters the bottom of right half side shell side, be dispersed into a large amount of steam bubbles buoyance lift that makes progress and drive the shell side liquid strenuous exercise that makes progress, and drive fluidization particle 16 and upwards flow 15, bring to the gas-liquid separation face 17 by overfall 10 controls, purge gas is separated through exhaust outlet 9 and is discharged.16 on shell side liquid and fluidization particle pass through the circumferentially circulation dirty 18 of second half shell side.The liquid of strenuous exercise and fluidization particle 16 carry out Rapid Cleaning with the tube outer surface dirt when crossing heat-transfer pipe 2 outer walls and flow.After treating that heat-transfer pipe 2 cleans up substantially towards the front half cycle that circumferentially circulates, open the air delivery valve 13 of another group gas distribution pipe, close the air delivery valve 14 of last group of gas distribution pipe, the circumferential circular flow that changes the three-phase fluidization washing fluid to.Exchange can be avoided the heat-transfer pipe 2 front half cycles that the circumferential circular flow of single direction flings and the inhomogeneities of back side half cycle Fouling Cleaning for washing and cleaning operation like this.In the cleaning process, fluidization particle 16 moves to shell side liquid outlet 11 directions step by step with the axial flow of shell side liquid simultaneously; But after dropping to the bottom, under the effect of the gas of jet inclined hole 3 or jet oblique mouth 20 ejections, fluidization particle 16 produces the loopback campaign to shell side liquid-inlet 21 directions, realized the particle axial circulation 6 of fluidization particle 16 thus, make fluidization particle 16 even all the time, ensure the axial uniformity of the outer Fouling Cleaning of heat-transfer pipe 2 pipes in shell side distribution vertically.Because the violent of three-phase fluidization cleaning fluid flows, on-line cleaning speed is fast, and the time is short, not only the heat exchange efficiency during cleaning can not descend, can strengthen better on the contrary.The shell side fluid pressure that purge gas need overcome is little, only needs low-pressure gas, and cleaning charge is very low.Therefore, this heat exchanger can reach the purpose that ensures long-term efficient operation by online, quick, even, economic periodic purge.
The number of exhaust outlet 9 is considered the diameter of housing 1 simultaneously mainly by the length decision of housing 1.For the little heat exchanger of housing 1 diameter, can be every about 1500mm one.The gross area of exhaust outlet 9 is calculated by exhaust velocity determines that exhaust velocity is not taken shell side liquid basically out of with discharge gas and is as the criterion, generally in 40m/s～80m/s scope.If shell side liquid can adopt higher exhaust velocity during for cooling water.
The axial location of overfall 10 is identical with shell side liquid outlet 11, efficiency of heat exchanger during with the assurance on-line cleaning; Its height and position is top identical with heat-transfer pipe 2 substantially.The arrangement position of top heat-transfer pipe 2 is the area size decisions that need according to gas-liquid separation liquid level 17.
Claims (3)
1. the outer horizontal tubular heat exchanger of dirt three-phase fluidization on-line cleaning type of a pipe, by heat-transfer pipe, housing, gas distribution pipe, exhaust outlet, overfall are formed horizontal tubular heat exchanger, it is characterized in that the bottom is fixed with gas distribution pipe (4), gas distribution pipe (4) is provided with jet inclined hole (4) or jet oblique mouth (20), the bottom of housing (1) is equipped with and is cleaned with fluidization particle (16), and exhaust outlet (9) is arranged at the top of housing (1), and the top of housing (1) offers overfall (10).
2. the outer horizontal tubular heat exchanger of dirt three-phase fluidization on-line cleaning type of pipe according to claim 1, the pipe number that it is characterized in that every group of gas distribution pipe (4) is 1～4, and jet inclined hole (4) on the gas distribution pipe (4) or jet oblique mouth (20) all tilt to the direction of shell side liquid-inlet (21).
3. the outer horizontal tubular heat exchanger of dirt three-phase fluidization on-line cleaning type of pipe according to claim 1 is characterized in that fluidization particle (16) can be river sand, porcelain ball, glass marble, baton round or plastic pellet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227900 CN2653417Y (en) | 2003-06-13 | 2003-06-13 | Three phase fluidized on-line cleaning type horizontal tube heat exchanger for dirt of outside pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227900 CN2653417Y (en) | 2003-06-13 | 2003-06-13 | Three phase fluidized on-line cleaning type horizontal tube heat exchanger for dirt of outside pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653417Y true CN2653417Y (en) | 2004-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03227900 Expired - Fee Related CN2653417Y (en) | 2003-06-13 | 2003-06-13 | Three phase fluidized on-line cleaning type horizontal tube heat exchanger for dirt of outside pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653417Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
| CN105344122A (en) * | 2015-09-02 | 2016-02-24 | 湖北合加环境设备有限公司 | Horizontal falling film evaporator capable of descaling in online manner |
| CN109654912A (en) * | 2017-10-12 | 2019-04-19 | 中国石油化工股份有限公司 | Particle walks the horizontal type fluidized-bed heat exchanger of shell side |
| CN114699793A (en) * | 2022-05-17 | 2022-07-05 | 黄河水利职业技术学院 | Anti-scaling crystallization equipment capable of continuously discharging |
-
2003
- 2003-06-13 CN CN 03227900 patent/CN2653417Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115521A (en) * | 2012-11-11 | 2013-05-22 | 安徽金禾实业股份有限公司 | Device and method for tube type heat exchanger on-line washing |
| CN105344122A (en) * | 2015-09-02 | 2016-02-24 | 湖北合加环境设备有限公司 | Horizontal falling film evaporator capable of descaling in online manner |
| CN109654912A (en) * | 2017-10-12 | 2019-04-19 | 中国石油化工股份有限公司 | Particle walks the horizontal type fluidized-bed heat exchanger of shell side |
| CN114699793A (en) * | 2022-05-17 | 2022-07-05 | 黄河水利职业技术学院 | Anti-scaling crystallization equipment capable of continuously discharging |
| CN114699793B (en) * | 2022-05-17 | 2023-06-23 | 黄河水利职业技术学院 | Anti-scaling crystallization equipment capable of continuously discharging |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |