CN1288145A - Cleaning method for precipitated mud and sand on heat exchanger - Google Patents
Cleaning method for precipitated mud and sand on heat exchanger Download PDFInfo
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- CN1288145A CN1288145A CN 00110511 CN00110511A CN1288145A CN 1288145 A CN1288145 A CN 1288145A CN 00110511 CN00110511 CN 00110511 CN 00110511 A CN00110511 A CN 00110511A CN 1288145 A CN1288145 A CN 1288145A
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- sand
- water
- heat exchanger
- precipitated mud
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Abstract
A method for removing silt deposit from heat exchanger features that steam is introduced to cooled liquid channel to boil the silt deposit fully in the channel, and the boiling silt is flushed out by water.
Description
The present invention relates to the deposit method for cleaning in the heat exchanger, especially adapt to the method for cleaning of the precipitated mud and sand in the spiral heat exchanger.
It is to adopt the spiral plate type structure that a kind of heat exchanger or cooler are arranged in the equipment of enterprises such as iron and steel, metallurgy, chemical industry at present, be characterized in that heat exchange area is big, effective, shortcoming is to adopt two-layer each enclosed construction non-dismountable or detachably but very numb all because of heat exchanger, once produce deposit in the passage, particularly silt particle can cause passage to stop up, and just influences work.At present, the cooling fluid that this class heat exchanger uses all is an industry water, be the half congealed water in pond, rivers water, underground water, because of not needing the too low temperature of meson that is cooled winter, thereby cooling fluid flow velocity in heat exchanger is very slow, so the silt particle in the water just has an opportunity to be deposited on the bottom of channel layer, and caused the obstruction of cooling-water duct gradually.Present method for cleaning has two kinds: a kind of is to bore a hole on the blocking channel wall of heat exchanger side, put in reinforcing bar by the hole and stir precipitated mud and sand, and water flushing then, but stir area very little, and the dead angle is too many, and this method effect is little, effect is undesirable.Second kind is to corrode the precipitated mud and sand of dissolving in the passage with hydrofluoric acid liquid, and effect is not only undesirable but also equipment had corrosiveness.
The purpose of this invention is to provide a kind of easy, fast, again not damage equipment, and can thoroughly remove the method for precipitated mud and sand.
Technical scheme of the present invention is achieved in that the entrance and exit of the passage of the cooling water layer of closing heat exchanger, passage to the liquid layer that is cooled feeds steam, be used for heating the water in the cooling layer, the water that precipitated mud and sand contains makes it to undergo phase transition i.e. vaporization, owing to can be produced a large amount of steam bubbles and come-up makes water that violent boiling take place.When silt particle after all boiling is got up, open the silt particle that does not deposit as yet that the valve water will seethe with excitement and go out.
The invention has the advantages that easy, fast, do not decrease ring apparatus and can thoroughly remove deposits such as silt particle again, adaptation can not or the passage mediation of the heat exchanger of inconvenience dismounting.
The present invention is further elaborated below in conjunction with accompanying drawing.
Accompanying drawing 1 is the schematic cross-section of spiral heat exchanger.
Accompanying drawing 2 is the schematic perspective view of the spiral heat exchanger in the accompanying drawing 1.
Embodiments of the invention have exemplified the precipitated mud and sand method of operating of cleaning spiral plate type heat exchanger: close the cooling water layer 1 of heat exchanger and water layer 2 passages that are cooled and go out to have inlet valve, make the cooling layer 1 of sedimentary clay layer of sand that part water be arranged.Layer 2 passage feed steam to being cooled, be used for heating the water of 1 li of cooling layer, make it to undergo phase transition and vaporize, because the water that precipitated mud and sand 3 contains can produce a large amount of steam bubbles and come-up makes water that more violent boiling take place, boiling steam is stirring precipitated mud and sand 3, make it to seethe with excitement with water, after precipitated mud and sand 3 all seethes with excitement, opening the silt particle that does not deposit as yet 3 that valve (wherein 4,5 for the cooling layer import and export, and 6,7 for the being cooled a layer import and export) water of import and export 4,5 will seethe with excitement goes out.This method also is adapted to board-like or the altogether sedimental cleaning in the heat exchanger that forms of its double-deck passage.
Claims (1)
1, a kind of method for cleaning of precipitated mud and sand of heat exchanger, the valve of principle that it is characterized in that this method for closing double-deck passage import and export (4), (5), (6), (7), make the cooling layer (1) of precipitated mud and sand (3) have part water, layer (2) feeds steam to being cooled, the water of cooling layer (1) is heated to vaporize and stirs precipitated mud and sand (3), treats that opening the valve water after whole precipitated mud and sands (3) are with the water boiling thoroughly goes out precipitated mud and sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00110511 CN1288145A (en) | 2000-06-06 | 2000-06-06 | Cleaning method for precipitated mud and sand on heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00110511 CN1288145A (en) | 2000-06-06 | 2000-06-06 | Cleaning method for precipitated mud and sand on heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1288145A true CN1288145A (en) | 2001-03-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00110511 Pending CN1288145A (en) | 2000-06-06 | 2000-06-06 | Cleaning method for precipitated mud and sand on heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1288145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339754A (en) * | 2013-04-12 | 2016-02-17 | 瓦特鲁斯公司 | Method for cleaning plate heat exchanger and plate heat exchanger |
-
2000
- 2000-06-06 CN CN 00110511 patent/CN1288145A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339754A (en) * | 2013-04-12 | 2016-02-17 | 瓦特鲁斯公司 | Method for cleaning plate heat exchanger and plate heat exchanger |
| CN105339754B (en) * | 2013-04-12 | 2018-10-12 | 瓦特鲁斯公司 | Method and plate heat exchanger for cleaned panel-style heat exchanger |
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| C10 | Entry into substantive examination | ||
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| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |