CN1862213B - A high-efficiency heat transfer device with jet pulse spiral automatic cleaning - Google Patents
A high-efficiency heat transfer device with jet pulse spiral automatic cleaning Download PDFInfo
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- CN1862213B CN1862213B CN200510031530A CN200510031530A CN1862213B CN 1862213 B CN1862213 B CN 1862213B CN 200510031530 A CN200510031530 A CN 200510031530A CN 200510031530 A CN200510031530 A CN 200510031530A CN 1862213 B CN1862213 B CN 1862213B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 229920003023 plastic Polymers 0.000 claims abstract description 53
- 239000004033 plastic Substances 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000005192 partition Methods 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 abstract description 20
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000005406 washing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010926 purge Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
一种喷气脉冲螺旋自动清洗式高效传热装置，由传热管、管口罩、塑料斜齿螺旋扭带或钢丝螺旋、壳体、底室、隔板、旋转喷气管、转速调节板等构成。每根传热管内放置塑料斜齿螺旋扭带或钢丝螺旋，两端都装有管口罩。运行时塑料斜齿螺旋扭带或钢丝螺旋使管内的对流传热得以高效强化。进口底室内设置靠喷气反作用力自转的喷气管，喷气管每旋转一周，对所有的传热管提供一个脉冲气流。清洗时，脉冲气流与液体的混合物带动传热管内的塑料斜齿螺旋扭带或钢丝螺旋剧烈地上下往复运动，实现在线、快速清洗。这种传热设备结构简单，操作简便，清洗费用低廉，始终保持高效运行，比传统结构的低流速传热设备的管内侧对流传热系数αi提高一倍以上。
An air-jet pulse spiral self-cleaning high-efficiency heat transfer device is composed of a heat transfer tube, a tube mask, a plastic helical spiral twisted belt or a steel wire spiral, a shell, a bottom chamber, a partition, a rotating air jet pipe, and a speed regulating plate. Each heat transfer tube is placed in a plastic helical twisted belt or a steel wire helix, and tube masks are installed at both ends. During operation, the plastic helical helical twisted belt or steel wire helix can effectively strengthen the convective heat transfer in the tube. The inlet bottom chamber is provided with an air jet pipe that rotates by jet reaction force, and every time the air jet pipe rotates once, a pulsed air flow is provided to all heat transfer tubes. When cleaning, the mixture of pulse air flow and liquid drives the plastic helical spiral twisted belt or steel wire spiral in the heat transfer tube to reciprocate violently up and down, realizing online and rapid cleaning. This kind of heat transfer equipment is simple in structure, easy to operate, low in cleaning cost, and always maintains high-efficiency operation. Compared with traditional low-flow rate heat transfer equipment, the convective heat transfer coefficient α i inside the tube is more than doubled.
Description
Technical field
Patent of the present invention relates to a kind of gas jet pulse screw automatic washing type high-efficient heat transfer device.The efficient heat transfer equipment of this jet rotation pulse screw automatic washing type structure can be widely used in the low flow velocity heat-transfer equipment of interior water-cooled other vertical shell-and-tube of the vertical water cooler of low flow velocity, pipe such as freezing unit.
Background technology
The vertical shell-and-tube heat-transfer equipment of traditional structure, the velocity in pipes that quite a lot of equipment is arranged are below 0.2m/s, and not only convective heat-transfer coefficient is very low, and fouling easily, and operational efficiency is very low.Especially the open type equipment that in pipe, flows from top to bottom of cooling water, the cooling water inflow that adds each pipe distributes very inhomogeneous again, and operational efficiency is very low especially.
This low pitot tube shell-type heat-transfer equipment dirt of growing easily can't be adopted by the restriction of low flow velocity again and relatively effectively cleans preventing fouling automatically.For example, above (the fluid dynamic plastic cladding helix of dirt on-line auto-cleaning in the heat-transfer pipe of plastic cladding helix specification requirement flow velocity 0.4m/s, 2005.2.23., ZH2004200351029), helical teeth twisted strip specification requirement flow velocity 0.35m/s is above, and (rotation type cleans and heat conduction reinforced twisted strip with oblique teeth in a kind of pipe, 2004.3.31., CN1485596A), above (the vertical heat-transfer equipment of circulating fluidization in a kind of two covers of the board-like circulating fluidization specification requirement of bubble-cap flow velocity 0.2m/s, 2005.1.19., ZH2003201142083).Therefore, the cleaning of can only periodically stopping of the dirt in the low flow velocity heat-transfer pipe.Because dirt can not in time be removed, operational efficiency is low, and because dirt is heat conduction reinforced governing factor in the heat-transfer pipe, therefore before low flow velocity on-line auto-cleaning problem did not achieve a solution, general heat-transfer equipment did not consider to adopt heat-transfer pipe interpolation thing realization convection heat transfer' heat-transfer by convection to strengthen.Moreover stop and clean great majority employing mechanical cleaning method, heat conduction reinforced heat-transfer pipe interpolation thing can make machinery clean and bring inconvenience even sizable difficulty is arranged.
Summary of the invention
Patent of the present invention is intended to solve the on-line auto-cleaning problem of dirt in the low flow velocity vertical shell-and-tube heat-transfer equipment heat-transfer pipe, the low flow velocity convection heat transfer' heat-transfer by convection that solves simultaneously again in the heat-transfer pipe is strengthened problem, propose a kind of gas jet pulse screw automatic washing type high-efficient heat transfer device, make efficient reinforcement of convection heat transfer' heat-transfer by convection realization of production period by the screw element of interpolation in the heat-transfer pipe; When needing in the scavenge pipe dirt, the rotary pulsed air-flow that produces by the air jet pipe rotation drives pumping of interpolation screw element in the vertical heat-transfer pipe, realizes the online Rapid Cleaning of incrustation scale in the pipe.Therefore, operational efficiency is increased exponentially, keep body basic structure constant again, manufacturing expense increases few, and cleaning operation is easy, expense is cheap.
The technical scheme of patent of the present invention is:
A kind of gas jet pulse screw automatic washing type high-efficient passes ripe device, constitute by heat-transfer pipe, mouth of pipe cover, plastics helical teeth twisted strip or steel wire spiral, housing, bottom compartment, dividing plate, air jet pipe, rotational speed regulation flaps etc. every interior plastics helical teeth twisted strip or the steel wire spiral of placing a suitable length of heat-transfer pipe, heat-transfer pipe all is equipped with mouth of pipe cover in two ends up and down. and the external diameter of plastics helical teeth twisted strip or steel wire spiral all significantly less than the internal diameter of heat-transfer pipe and mouth of pipe cover, can move back and forth freely; Simultaneously again must be significantly greater than the mesh size of mouth of pipe cover or the channel width between the gusset, can not run out of outside the mouth of pipe cover of heat-transfer pipe, plastics helical teeth twisted strip or steel wire spiral are remained in each heat-transfer pipe. the flow velocity that liquid in pipe made progress when the sinking speed of plastics helical teeth twisted strip or steel wire spiral all must normally be moved greater than heat-transfer equipment. import is provided with air jet pipe in the bottom compartment, jet reaction rotation by air jet pipe. air jet pipe is every provides a pulse purge flow just for all heat-transfer pipes from circling, plastics helical teeth twisted strip or steel wire spiral are pumped clean on air jet pipe rotational speed regulation flaps is installed, angle between rotational speed regulation flaps and the horizontal cross-section can change, with this rotational resistance that changes air jet pipe, reach the purpose of regulating the air-flow pulse cleaning frequency.
During production run, liquid in pipe slowly flows from bottom to top, and its flow velocity is markedly inferior to the sinking speed of plastics helical teeth twisted strip or steel wire spiral, so plastics helical teeth twisted strip or steel wire spiral can rest in the mouth of pipe cover of lower end all the time.Linear flow is moving in the shape of a spiral because liquid in pipe is subjected to the guide functions of plastics helical teeth twisted strip or steel wire spiral, in helix process of flowing forward, constantly be subjected to the periodic flow-disturbing of the steel wire of the helical teeth of plastics helical teeth twisted strip or steel wire spiral again, make the convection heat transfer' heat-transfer by convection process be able to efficient reinforcement.Plastics helical teeth twisted strip and steel wire spiral can make the convective heat-transfer coefficient α of heat-transfer pipe inboard
iImprove 100% respectively, more than 25%.
When operation needs in the scavenge pipe dirt after a period of time, earlier liquid level is reduced to about half of heat-transfer pipe height, reduces requirement greatly, so that adopt air blast as the big source of the gas of air demand to purge gas pressure size.Open intake valve, air jet pipe is jet, rotates automatically by jet propulsive thrust effect.Float in the air chamber of being cut apart by dividing plate on the gas of ejection, mix with liquid upwards via the heat-transfer pipe above this air chamber and flow, the bubble volume in these heat-transfer pipes little by little increases.At one time, and be not subjected to constituting between other jet most of heat-transfer pipes of air jet pipe linker with very big differential static pressure.Under the effect of this big differential static pressure, these are subjected to the interior solution-airmixture of heat-transfer pipe of the jet air chamber top of air jet pipe to produce quick stream upwards, its speed is the sinking speed in liquid in pipe much larger than plastics helical teeth twisted strip or steel wire spiral, drives plastics helical teeth twisted strip or steel wire spiral fast rotational and moves upward with fast speeds together.In the two phase flow flow process of solution-airmixture, bubble is violent for the stirring of cooling water, therefore to move upward be the compound movement that fluctuation is arranged, rotation is arranged for plastics helical teeth twisted strip or steel wire spiral, with heat-transfer pipe inwall collision friction continually, can be fast, equably the Fouling Cleaning of inside pipe wall is removed.Plastics helical teeth twisted strip or steel wire screw are lived by mouth of pipe cover shelves to the upper end of heat-transfer pipe, and purge gas floats to the liquid level in the downstream chamber, are discharged to outside the heat-transfer equipment through exhaust-valve.After this air chamber is left in the air jet pipe rotation, no longer include gas in these heat-transfer pipes and supply with, revert to the low flow velocity of original liquid again and upwards flow, plastics helical teeth twisted strip or the sedimentation under the gravity effect of steel wire spiral are sunk up to the mouth of pipe cover of heat-transfer pipe lower end.Therefore, air jet pipe whenever rotates a circle, and plastics helical teeth twisted strip or steel wire spiral in all heat-transfer pipes of heat-transfer equipment all pump once, to the Fouling Cleaning of heat-transfer pipe inwall once.Continuation rotation along with air jet pipe so repeats, and can clean the incrustation scale in the heat-transfer pipe completely soon.Stop air feed then, be returned to normal operating condition.Rotational speed regulation flaps of installing on the air jet pipe and the angle of inclination between the horizontal cross-section can be regulated through hand hole and change, with this rotational resistance that increases or lower air jet pipe significantly, reach the rotation period of adjusting air jet pipe and the purpose of gasflow clean-up pulse period.Can adopt plastics helical teeth twisted strip for general dirt; If dirt is very hard, be difficult in cleaning or the heat-transfer pipe is high-temp liquid, then can adopt the steel wire spiral.
Therefore, a kind of gas jet pulse screw automatic washing type high-efficient heat transfer device not only can be realized the efficient reinforcement of convection heat transfer' heat-transfer by convection in the low flow velocity heat-transfer pipe, can realize the online Rapid Cleaning of dirt in the heat-transfer pipe again, in time remove the inside pipe wall dirt, the efficient operation that support equipment is long-term.And cleaning operation is easy, the shell side fluid pressure that only needs the low pressure gas body source to overcome, and scavenging period is short, and the consumption of purge gas is few, and cleaning charge is with cheap.
Description of drawings
The structure principle chart of a kind of gas jet pulse screw automatic washing type high-efficient heat transfer device of Fig. 1
Fig. 2 plastics helical teeth twisted strip schematic diagram
The diaphragm structure of Fig. 3 A-A profile
Among the figure: 1. air bleeding valve 2 downstream chambers 3 mouth of pipe covers, 4. heat-transfer pipes, 5 steel wire spirals 6. plastics helical teeth twisted strips 7 dividing plates, 8 bottom compartments 9 air jet pipes, 10 air inlet pipe, 11 supply gas pressure table 12 intake valves, 13 rotational speed regulation flaps, 14 hand holes, 15 housings, 16 helical teeth, 17 air chambers, 18 centers
The specific embodiment
Below in conjunction with accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, the specific embodiments of patent of the present invention is described:
A kind of gas jet pulse screw automatic washing type high-efficient heat transfer device is placed steel wire spiral 5 or plastics helical teeth twisted strip 6 in every heat-transfer pipe 4.Steel wire spiral 5 or plastics helical teeth twisted strip 6 must be higher than the flow velocity that liquid makes progress in the heat-transfer pipe 4 significantly in the sinking speed of liquid in pipe.The maximum outside diameter d of steel wire spiral 5 or plastics helical teeth twisted strip 6 must be less than the inside diameter D of heat-transfer pipe 4, and ratio (d/D) is below 0.95.Mouth of pipe cover 3 all is equipped with at the two ends up and down of heat-transfer pipe 4.The center of bottom compartment 8 is equipped with air jet pipe 9.Rotational speed regulation flaps 13 is installed on the air jet pipe 9, and the angle between rotational speed regulation flaps 13 and the horizontal cross-section can change, and with this rotational resistance that changes air jet pipe, reaches the purpose of regulating the air-flow pulse cleaning frequency.
During production run, liquid from bottom to top with speed slowly by heat-transfer pipe 4, be markedly inferior to the free-falling velocity of steel wire spiral 5 or plastics helical teeth twisted strip 6, so steel wire spiral 5 or plastics helical teeth twisted strip 6 all rest on mouth of pipe cover 3 the insides of heat-transfer pipe 4 lower ends.Steel wire spiral 5 or plastics helical teeth twisted strip 6 are as the reinforced element of convection heat transfer' heat-transfer by convection in the pipe.Linear flow is moving in the shape of a spiral because liquid in pipe is subjected to the guide functions of steel wire spiral 5 or plastics helical teeth twisted strip 6, helix liquid stream constantly is subjected to the steel wire of steel wire spiral 5 again in process of flowing forward or the helical teeth of plastics helical teeth twisted strip 6 periodically stops flow-disturbing, so the convection heat transfer' heat-transfer by convection process obtains highly effective reinforcement.Test shows that the steel wire 5 of plastics helical teeth twisted strip 6 and steel wire spiral can make the convective heat-transfer coefficient α of heat-transfer pipe 4 inboards
iImprove 100% respectively, more than 25%.
When the dirt in the heat-transfer pipe 4 need clean, earlier liquid level is reduced to about half of heat-transfer pipe 4 height, reduce requirement greatly to purge gas pressure size, so that adopt air blast as the big source of the gas of air demand. open intake valve 12, be adjusted to after fumarole place hydrostatic of the air jet pipe 9 that supply gas pressure table 11 surpasses a little, air jet pipe 9 is normally jet, by jet reaction thrust air jet pipe 9 is rotated automatically. the gas come-up of ejection enters into the air chamber of being cut apart by dividing plate 7 17, heat-transfer pipe 4 through these air chamber 17 tops mixes upwards mobile with liquid, bubble volume total amount in these heat-transfer pipes 4 little by little increases. at one time, and be not subjected to constituting linker between other jet most of heat-transfer pipes 4 of air jet pipe 9 with very big differential static pressure. under the effect of this big differential static pressure, these are subjected to the solution-airmixtures in the heat-transfer pipe 4 of jet air chamber 17 tops of air jet pipe 9 to produce quick stream upwards, its speed is the sinking speed in the liquid in heat-transfer pipe 4 much larger than plastics helical teeth twisted strip 6 or steel wire spiral 5, drive plastics helical teeth twisted strip 6 or steel wire spiral 5 fast rotational, and move upward with fast speeds together. in the two phase flow flow process of solution-airmixture, bubble is violent for the stirring of cooling water, therefore to move upward be existing fluctuation for plastics helical teeth twisted strip 6 or steel wire spiral 5, the compound movement of rotation is arranged again, with heat-transfer pipe 4 inwalls collision friction continually, so can be fast, equably the Fouling Cleaning of heat-transfer pipe 4 inwalls to be removed. plastics helical teeth twisted strip 6 or steel wire spiral 5 move to the upper end of heat-transfer pipe 4 and are lived for 3 grades by mouth of pipe cover, purge gas floats to the liquid level of downstream chamber, be discharged to outside the heat-transfer equipment through air bleeding valve 1. after this air chamber 17 is left in air jet pipe 9 rotations, no longer including gas in these heat-transfer pipes 4 supplies with, reverting to the low flow velocity of original liquid again upwards flows, plastics helical teeth twisted strip 6 or steel wire spiral 5 are at gravity effect sinking reduction of speed, sinking up to the mouth of pipe cover 3. of heat-transfer pipe 4 lower ends therefore, air jet pipe 9 whenever rotates a circle, plastics helical teeth twisted strip 6 or steel wire spiral 5 in all heat-transfer pipes 4 of heat-transfer equipment all pump once, to of Fouling Cleaning of heat-transfer pipe 4 inwalls continuation rotation along with air jet pipe 9, constantly move back and forth and clean, generally up and down reciprocatingly just the incrustation scales in the heat-transfer pipe 4 can be cleaned up about 40 times, finish to clean, stop air feed, be returned to normal operating condition.
When the dirt in the heat-transfer pipe is hard scale or high-temperature medium, steel wire spiral 5 is set in the heat-transfer pipe 4.When the dirt in the heat-transfer pipe is soft dirt and fluid temperature when not high, plastics helical teeth twisted strip 6 is set in the heat-transfer pipe 4.The length of steel wire spiral 5 or plastics helical teeth twisted strip 6 is all than heat-transfer pipe 4 little a certain appropriate value h
1h
1Value is more than 100mm, by the coverage size decision of the heat conduction reinforced influence in steel wire spiral 5 or 6 pairs of downstreams of plastics helical teeth twisted strip.So both can make the convection heat transfer' heat-transfer by convection of whole heat-transfer pipe 4 length directions efficiently strengthen the reciprocating motion stroke H that steel wire spiral 5 or plastics helical teeth twisted strip 6 are necessary all when pulse is cleaned.If reciprocating stroke H is too little, then cleaning speed is low.
No matter the structure of mouth of pipe cover 3 is gusset type structure or mesh type, it is tubular to be the garden, and internal diameter is all greater than the external diameter of steel wire spiral 5 or plastics helical teeth twisted strip 6, so that steel wire spiral 5 or plastics helical teeth twisted strip 6 both can be deposited to the end of mouth of pipe cover 3, also can ascending motion to the top of mouth of pipe cover 3, make the height h of mouth of pipe cover 3
2All become a part that moves back and forth cleaning stroke H, improve cleaning efficiency with this.The mesh size of mouth of pipe cover 3 or the channel width between the gusset are all significantly less than the external diameter of steel wire spiral 5 or plastics helical teeth twisted strip 6, in case steel wire spiral 5 or plastics helical teeth twisted strip are run out of outside the mouth of pipe cover 3.
The air chamber 17 of formation is cut apart by dividing plate 7 in the top of bottom compartment 8, and along circumferentially uniform, the number of air chamber 17 is 2-12, and center 18 must be interconnected with one of them air chamber 17 and becomes same air chamber.The pipe number of the heat-transfer pipe 4 of heat-transfer equipment the more, the number of air chamber 17 also just need design the more, helps reducing pipe number-air feed rate request that air feed simultaneously cleans, so that select less air blast or compressor for use.Fumarole on the air jet pipe 9 must be greater than center 18 radius r at the radius R of radially position of opening, so that make heat-transfer pipes 4 in the center 18 can realize equally that also pulse cleans in the process of air jet pipe 9 rotary jets.
The swing circle of air jet pipe 9 must be greater than the product of the number of rise time of steel wire spiral 5 or plastics helical teeth twisted strip 6 and air chamber 17.The rotational speed regulation flaps of installing on the air jet pipe 9 13.If the rotary speed of air jet pipe 9 is too fast or too slow, can be through the angle of inclination between hand hole 14 change rotational speed regulation flaps 13 and the horizontal cross-section, with this rotational resistance that increases or lower air jet pipe significantly, reach the rotation period of adjusting air jet pipe and the purpose of gasflow clean-up pulse period.
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200510031530A CN1862213B (en) | 2005-05-13 | 2005-05-13 | A high-efficiency heat transfer device with jet pulse spiral automatic cleaning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510031530A CN1862213B (en) | 2005-05-13 | 2005-05-13 | A high-efficiency heat transfer device with jet pulse spiral automatic cleaning |
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| CN1862213A CN1862213A (en) | 2006-11-15 |
| CN1862213B true CN1862213B (en) | 2010-05-12 |
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| CN200510031530A Expired - Fee Related CN1862213B (en) | 2005-05-13 | 2005-05-13 | A high-efficiency heat transfer device with jet pulse spiral automatic cleaning |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895786A (en) * | 2011-07-27 | 2013-01-30 | 俞天翔 | Energy-saving evaporator |
| CN103706135A (en) * | 2012-10-08 | 2014-04-09 | 俞天翔 | In-pipe vibration reciprocating spiral reciprocatingly cleaning type falling film evaporator |
| CN103712516A (en) * | 2012-10-08 | 2014-04-09 | 俞天翔 | Undulating flow reciprocating screw vibrating cleaning type natural circulating evaporator |
| CN103712517B (en) * | 2013-12-31 | 2015-11-25 | 长沙市博能科技发展有限公司 | A kind of steam turbine power generation small unit automatic cleaning system for condenser |
| US9927231B2 (en) | 2014-07-25 | 2018-03-27 | Integrated Test & Measurement (ITM), LLC | System and methods for detecting, monitoring, and removing deposits on boiler heat exchanger surfaces using vibrational analysis |
| CN110595260B (en) * | 2019-10-08 | 2021-03-23 | 广东石油化工学院 | On-line cleaning method for dirt of shell-and-tube heat exchanger |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366003A (en) * | 1979-11-30 | 1982-12-28 | Degussa Aktiengesellschaft | Apparatus and process for the periodic cleaning-out of solids deposits from heat exchanger pipes |
| US4645542A (en) * | 1984-04-26 | 1987-02-24 | Anco Engineers, Inc. | Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like |
| JPS63161396A (en) | 1986-12-25 | 1988-07-05 | Mitsubishi Heavy Ind Ltd | Method of removing scales from shell and tube type heat exchanger |
| CN2223474Y (en) * | 1994-11-25 | 1996-03-27 | 吕志元 | Automatic rotary screw descaling spoiler tube type heat exchanger |
| US5799622A (en) * | 1997-06-30 | 1998-09-01 | Decker Manufacturing | Furnace heat exchanger tube cleaning system |
| CN1320488A (en) * | 2000-04-27 | 2001-11-07 | 株洲工学院帅科机械清洗研究所 | Automatic mechanical in-line cleaning technique for evaporator |
| WO2002059538A1 (en) * | 2001-01-26 | 2002-08-01 | Timo Vanhatalo | Method and apparatus for cleaning the tubes of a tubular heat exchanger |
| CN1566892A (en) * | 2003-06-13 | 2005-01-19 | 株洲工学院帅科机械清洗研究所 | Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process |
-
2005
- 2005-05-13 CN CN200510031530A patent/CN1862213B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4366003A (en) * | 1979-11-30 | 1982-12-28 | Degussa Aktiengesellschaft | Apparatus and process for the periodic cleaning-out of solids deposits from heat exchanger pipes |
| US4645542A (en) * | 1984-04-26 | 1987-02-24 | Anco Engineers, Inc. | Method of pressure pulse cleaning the interior of heat exchanger tubes located within a pressure vessel such as a tube bundle heat exchanger, boiler, condenser or the like |
| JPS63161396A (en) | 1986-12-25 | 1988-07-05 | Mitsubishi Heavy Ind Ltd | Method of removing scales from shell and tube type heat exchanger |
| CN2223474Y (en) * | 1994-11-25 | 1996-03-27 | 吕志元 | Automatic rotary screw descaling spoiler tube type heat exchanger |
| US5799622A (en) * | 1997-06-30 | 1998-09-01 | Decker Manufacturing | Furnace heat exchanger tube cleaning system |
| CN1320488A (en) * | 2000-04-27 | 2001-11-07 | 株洲工学院帅科机械清洗研究所 | Automatic mechanical in-line cleaning technique for evaporator |
| WO2002059538A1 (en) * | 2001-01-26 | 2002-08-01 | Timo Vanhatalo | Method and apparatus for cleaning the tubes of a tubular heat exchanger |
| CN1566892A (en) * | 2003-06-13 | 2005-01-19 | 株洲工学院帅科机械清洗研究所 | Horizontal column type heat exchanger exterior dirt three-phase fluidization in-situ cleaning process |
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| CN1862213A (en) | 2006-11-15 |
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