CN101726214A - Self-cleaning-capable spiral-band descaling device for condensers - Google Patents
Self-cleaning-capable spiral-band descaling device for condensers Download PDFInfo
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- CN101726214A CN101726214A CN200810171736A CN200810171736A CN101726214A CN 101726214 A CN101726214 A CN 101726214A CN 200810171736 A CN200810171736 A CN 200810171736A CN 200810171736 A CN200810171736 A CN 200810171736A CN 101726214 A CN101726214 A CN 101726214A
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- spiral
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- condenser
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Abstract
The invention aims to provide a self-cleaning-capable spiral-band descaling device for condensers, which is used to descale heat exchange tubes of condensers and improve heat exchange efficiency of the condensers, in particular to prevent dirt attached to spiral band bodies. In order to achieve the dual aim, the invention adopts a technical scheme that the device consists of a central spiral band, two peripheral spiral bands connected as a whole, a plug-in piece fixed at the top end of an inlet of a condenser straight pipe, a rotating shaft and a shaft sleeve; the rotating shaft is connected with the shaft sleeve and the central spiral band through a shaft hole at the top end of the plug-in piece; and the shaft sleeve is connected with the peripheral spiral bands. All the spiral bands have the same rotation axis; the peripheral spiral bands surround the central spiral band; and the peripheral spiral bands and the central spiral band relatively rotate at different angular velocity respectively. The spiral bands are basically equal in length to a condenser heat-exchange straight pipe and are inserted in the condenser straight pipe.
Description
Technical field
The present invention relates to a kind of apparatus for eliminating sludge of condenser.
Background technology
After nineteen twenty-one is found the turbulent flow phenomenon, realize that with insert intraductal turbulance is one of method, and this mode applied in the various pipe type heat transfer equipment, its principle is: insert can cause strong flow-disturbing in straight pipeline, break the tube wall retention layer, form turbulent flow, prevent that the tube wall dirt from adhering to the effect with enhanced heat exchange thereby play.
Insert in the pipe is applied in the industrial colling pipe type heat transfer equipment, and principle is feasible.But in production practices, this mode is not by extensively approval and long-term use.Its reason is: insert is in heat exchanging equipment inner-walls of duct flow-disturbing, can't break the surface detention layer of himself, dirt can progressively be adhered to, along with the growth of dirt in the insert surface under the effect of retention layer, the heat exchange pipeline flow area can gradually reduce, water resistance increases synchronously, and the cooling water flow prompt drop is low, and insert is to the flow-disturbing ability drop of tube wall, final insert effect was lost efficacy, and the heat exchanger tube tube wall adheres to dirt again.Inserting in each heat exchanger tube of turbine condenser of thermal power plant with single spiral band is example, the condenser heat exchanger tube is under the strong disturbance of this insert, the tube wall retention layer is broken, heat transfer coefficient is enhanced, heat exchange property is much larger than the influence of water resistance, can reach and reduce the gross coal consumption rate 3-8 of unit gram, reduce electrical generation water consumption 10% above technical merit, but the weak point of holding time, facts have proved, dirt had been attached to the spiral band surface in general 25 days to 30 days, the souvenir of recirculated cooling water water resistance produces significant change, along with water resistance increases, the other technologies index can worsen synchronously, promptly has been difficult to keep later the safety of condenser greater than heat exchange property when the influence of water resistance, stablized with economical operation.
Summary of the invention
The purpose of this invention is to provide a kind of self-cleaning-capable spiral-band descaling device for condensers, be used for the heat exchange efficiency of scale removal of condenser heat exchanger tube and raising condenser, particularly prevent the dirt that adheres to of spiral band self.
The present invention is for realizing above-mentioned dual purpose, and the technical scheme of employing is: center convolution tie, two peripheral spiral bands that combine as a whole and be fixed on the plug-in unit on condenser straight pipeline import top, rotating shaft and axle sleeve and form; Rotating shaft connects with the center convolution tie by plug-in unit top axis hole and axle sleeve, and axle sleeve connects with peripheral spiral band.The all total same axis of rotation of spiral band, peripheral spiral band is around the center convolution tie, and peripheral spiral band relatively rotates with different angular speed respectively with the center convolution tie.Spiral band and condenser heat exchange straight pipeline are isometric substantially and be inserted in the condenser straight pipeline.
The effect that the present invention is provided with like this is: spiral band is quick rotation under the promotion of cooling water, produce jet and secondary eddy current, finish the streamflow regime that changes in the condenser straight pipeline simultaneously, prevent that the condenser heat exchanger tube from adhering to dirt, break the retention layer on spiral band surface again, avoid two functions of spiral band surface generation dirt, and guarantee that with this condenser straight pipeline inwall is stable with the condenser water resistance more than clean level for a long time.Apparatus structure is simple, need not additional external force, and is safe and reliable, easy for installation.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
It shown in the figure general assembly drawing of the present invention
Wherein: part 1: rotating shaft, part 2: axle sleeve, part 3: fixed hub, part 4: plug-in unit, part 5: peripheral spiral band, part 6: center convolution tie.
Specific embodiment
In accompanying drawing embodiment, this device is a kind of device of scale removal of condenser, by part 1 rotating shaft, and part 2 axle sleeves, part 3 fixed hubs, part 5 peripheral spiral bands, part 6 center convolution ties are formed.Part 4 is fixed support parts of device; After in the part 1 insert 4 top axis holes, insert 2 and part 3; Part 3 is fixed on the part 1, makes part 3 become the axle bed of the peripheral rotatable portion of this device; Part 5 is fixed in the peripheral rotatable portion of forming this device on the part 2; Part 6 is fixed in the center rotatable portion of forming this device on the part 1.Part 1, part 2, part 3, part 4, part 5, part 6 are coaxial.The device rotatable portion is rotated under the cooling water current drive, part 5 and part 6 relative quick rotation, because relative quick rotation, part 5 forms mutual flow-disturbing with part 6, avoid the spiral band surface of device to produce dirt, part 5 changes the flow shape of condenser straight pipeline wall again simultaneously, and condenser is long-term, the target of stable operation thereby reach.
Claims (4)
1. self-cleaning-capable spiral-band descaling device for condensers is characterized in that it comprises: center convolution tie, two peripheral spiral bands that combine as a whole and be fixed on the plug-in unit on condenser straight pipeline import top, rotating shaft and axle sleeve and form; Rotating shaft connects with the center convolution tie by plug-in unit top axis hole and axle sleeve, and axle sleeve connects with peripheral spiral band.
2. according to claims 1 described self-cleaning-capable spiral-band descaling device for condensers, it is characterized in that: all total same axis of rotation of spiral band, peripheral spiral band is around the center convolution tie, and peripheral spiral band relatively rotates with different angular speed respectively with the center convolution tie.
3. according to claims 1 described self-cleaning-capable spiral-band descaling device for condensers, it is characterized in that: spiral band and condenser heat exchange straight pipeline are isometric substantially and be inserted in the condenser straight pipeline.
4. according to claims 1 described self-cleaning-capable spiral-band descaling device for condensers, be further characterized in that: two peripheral spiral bands that combine as a whole can reduce wherein one as required.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171736A CN101726214A (en) | 2008-10-24 | 2008-10-24 | Self-cleaning-capable spiral-band descaling device for condensers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810171736A CN101726214A (en) | 2008-10-24 | 2008-10-24 | Self-cleaning-capable spiral-band descaling device for condensers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101726214A true CN101726214A (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810171736A Pending CN101726214A (en) | 2008-10-24 | 2008-10-24 | Self-cleaning-capable spiral-band descaling device for condensers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101726214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606975A (en) * | 2017-10-18 | 2018-01-19 | 张少杰 | A kind of pipe heat exchanger |
-
2008
- 2008-10-24 CN CN200810171736A patent/CN101726214A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606975A (en) * | 2017-10-18 | 2018-01-19 | 张少杰 | A kind of pipe heat exchanger |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100609 |
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| DD01 | Delivery of document by public notice |
Addressee: Yu Chuhang Document name: Notification that Application Deemed to be Withdrawn |