CN1532510A - Easy cleaning coal burning heat exchanger - Google Patents
Easy cleaning coal burning heat exchanger Download PDFInfo
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- CN1532510A CN1532510A CNA031213731A CN03121373A CN1532510A CN 1532510 A CN1532510 A CN 1532510A CN A031213731 A CNA031213731 A CN A031213731A CN 03121373 A CN03121373 A CN 03121373A CN 1532510 A CN1532510 A CN 1532510A
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- heat exchanger
- clean
- coal
- easy
- fire
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Abstract
The easy-to-clean coal burning heat exchanger includes one heat exchange body and one chimney shaft in the top of the heat exchange body. One group of metal pipes with fixed upper and lower ends is set inside the heat exchange body and is arranged in conic or pyramid shape with metal pipe interval being great in the lower part and small in the upper part. The chimney shaft has one cleaning hole with closing door in the top and at the intersection point of the extension lines of the metal pipes. The pipe walls of the heat exchanger may be cleaned in case of keeping burning, and the cleaned carbon compound may fall into hearth for burning for the second time to reduce pollution, raise heat efficiency, save energy source and save labor.
Description
Technical field
The present invention relates to a kind of coal-fired heat exchanger of coal-fired heat exchanger, particularly a kind of easy to clean.
Technical background
Coal-fired boiler or air-heater because after the burning, the gas of discharge is harmful, are not directly introduced indoorly, and after must utilizing the medium heating of a heat exchanger with cleaning, medium are introduced indoor again; The medium of general boiler is a clear water, and the medium of air-heater is an air.
Heat exchanger is two chambeies that isolate with the metal device, and hot gas is in a chamber behind the coal combustion, and medium is in another chamber, and in order to strengthen the area of isolating metal device, to increase heat exchanger effectiveness, the isolating metal device of heat exchanger is generally many metal tubes that are arranged in parallel.The hot gas that produces behind the coal combustion heats up the medium outside the metal tube through over-heat-exchanger, has carried out the waste gas of heat exchange and has then discharged outdoor through metal tube.
Through measuring, the industrial coal volatilization composition that heat supply blower fan and boiler are used can be up to 35%.Coal is after the burner hearth burning, and volatilizable composition gasifies, but in burning initial stage shortage of heat, vapour completing combustion can't be entered in the metal tube of heat exchanger.Volatizable material after gasification temperature decrease in metal tube is condensed into solid or paste, on tube wall, gradually metal tube is blocked, and greatly reduces the efficient of heat exchange.Use the coal of fugitive constituent 35% through the boiler of test basis 30,000 kilocalorie heats or air-heater, can be in three days the 16 strip metal pipes of internal diameter 40mm be blocked fully.Partially or completely be blocked after death at metal tube, general solution is that stove fire is extinguished, and from burner hearth or furnace roof poker is stretched into metal tube, will manage the cleaning after on fire again.Go round and begin again, both unhygienic, increased tired degree again, the user suffers untold misery.
Technical scheme
The objective of the invention is is providing a kind of coal-fired heat exchanger of easy to clean, can clear up the inner wall of metal tube of heat exchanger under that fire coal is flame-out situation.
Technical scheme of the present invention is achieved like this: a kind of heat exchanger of easy to clean, include a heat exchanger and the smoke box that is positioned at the heat exchanger top, in this heat exchanger, be provided with at least one group of metal tube, every group has many metal tubes, each root metal tube is fixing up and down, it is characterized in that: phase mutual edge distance lower end between many metal tubes is big on the same group for this, and the upper end is little, and many metal tubes are arranged and are circular cone or pyramid shape on the same group; At the smoke box top of the extending line intersection point of these metal tubes, open a cleaning eye, and on this cleaning eye, be provided with a closing door.
The coal-fired heat exchanger of easy to clean of the present invention, operation easily, can often the charing compound of cohesion be brushed from metal pipe-wall, falling burner hearth burns once more, reduce the discharging of imperfect combustion flue gas, metal pipe-wall thermal conductance after the cleaning is good, can improve the efficient of boiler or air-heater, to environmental protection with energy-conservation certain contribution arranged.
Following conjunction with figs., by specific embodiment, the present invention is described in detail.
Description of drawings
Fig. 1 overall structure schematic diagram of the present invention,
The partial enlarged drawing of Fig. 2 Butterworth Hatch of the present invention,
Fig. 3 structural representation with long handle brush clean metal pipe of the present invention.
In the accompanying drawing:
1, heat exchanger 2, burner hearth
3, metal tube 4, smoke box
5, cleaning eye 6, short tube
7, fire-resistant cotton 8, screw lid
81, external screw thread 9, long handle brush
91, handle 10-chimney
11, medium inlet 12, media outlet
Embodiment
See also Fig. 1 and shown in Figure 3, the heat exchanger of this embodiment, include a heat exchanger 1 and the smoke box 4 that is positioned at the heat exchanger top, in this heat exchanger 1, be provided with many metal tubes 3, heat exchange medium enters in the heat exchanger 1 from the medium inlet 11 of one side, the heat of metal tube 3 is taken away, flowed out from media outlet 12.
The two ends above-below direction of each root metal tube 3 is fixed, each other big of these many metal tubes 3 lower ends apart from upper end distance each other, and each metal tube 3 is arranged and is circular cone or pyramid shape; Be provided with a smoke box 4 at the extending line intersection point place of these metal tubes 3, the upper end outlet of all metal tubes 3 all is arranged in smoke box 4 bottoms, offer a cleaning eye 5 at smoke box 4 tops, 2 centimetres high diameters of welding are with externally threaded short tube 6 for 6 centimetres on the cleaning eye 5, in short tube 6, place fire-resistant cotton 7, add the screw lid that to lock 8 on the short tube 6, cover out an aperture 81.The steel brush 9 of one long handle is preset in the cleaning eye 5, and the aperture 81 of steel brush handle 91 on cleaning eye 5, fire-resistant cotton 7, screw lid 8 stretches out smoke box 4.Steel brush is mentioned its bristle near behind the top cleaning eye 5 of smoke box 4, and locking screw spiral cover 8, screw lid 8 compress fire-resistant cotton 7 with the cleaning eye sealing, and combustion gas can not leak.When the heat exchanger metal tube need be cleared up, can be before boiler or air-heater stoking a little less than the intensity of a fire time, screw lid 8 is loosened, fire-resistant cotton 7 bulk after, long handle brush 9 can rotate by different directions, stretches into cleaning tube walls in each metal tube 3.
An other embodiment is that long handle brush 9 need not be placed in the cleaning eye 5 for a long time, and its implementation method is to be provided with a closing door on this cleaning eye 5, under normal circumstances, closing door is closed, when needs cleaning metal tube 3 inwalls, open closing door, long handle brush 9 is reached in the pipe clean.
An embodiment is as first embodiment again, long handle brush is placed in the cleaning eye 5 for a long time, different is at the top of smoke box 4 closing door to be set, and the handle locking mechanism of a long handle brush is set on closing door, under normal circumstances, the handle of locking mechanism locking long handle brush is when needs cleaning metal tube 3 inwalls, unclamp locking mechanism, long handle brush 9 is reached in the pipe clean.
Claims (5)
1, a kind of coal-fired heat exchanger of easy to clean, include a heat exchanger and the smoke box that is positioned at the heat exchanger top, in this heat exchanger, be provided with at least one group of root metal tube, every group has many metal tubes, each metal tube is fixing up and down, it is characterized in that: phase mutual edge distance lower end between many metal tubes is big on the same group for this, and the upper end is little, and many metal tubes are arranged and are circular cone or pyramid shape on the same group; At the smoke box top of the extending line intersection point of these metal tubes, open a cleaning eye, but and on this cleaning eye, be provided with the closing door of a switch.
2, the coal-fired heat exchanger of the described easy to clean of claim 1, it is characterized in that: this closing door is to fix one above the cleaning eye at this to be provided with externally threaded short tube, put fire-resistant medium in the short tube, but on the short tube periphery, be provided with the screw lid that this external screw thread cooperates, an aperture is opened at the lid center, and-long handle brush is seated in the aperture.
3, the coal-fired heat exchanger of the described easy to clean of claim 2 is characterized in that: the handle locking mechanism that is provided with a long handle brush on this screw lid.
4, the heat exchanger of the described easy to clean of claim 2 is characterized in that: described fire-resistant medium is fire-resistant cotton.
5, the heat exchanger of the described easy to clean of claim 2 is characterized in that: described long handle brush is a steel brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031213731A CN1532510A (en) | 2003-03-26 | 2003-03-26 | Easy cleaning coal burning heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031213731A CN1532510A (en) | 2003-03-26 | 2003-03-26 | Easy cleaning coal burning heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1532510A true CN1532510A (en) | 2004-09-29 |
Family
ID=34285680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031213731A Pending CN1532510A (en) | 2003-03-26 | 2003-03-26 | Easy cleaning coal burning heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1532510A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080281A (en) * | 2010-08-30 | 2013-05-01 | 国际壳牌研究有限公司 | Gasification reactor |
-
2003
- 2003-03-26 CN CNA031213731A patent/CN1532510A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080281A (en) * | 2010-08-30 | 2013-05-01 | 国际壳牌研究有限公司 | Gasification reactor |
| CN103080281B (en) * | 2010-08-30 | 2014-11-05 | 国际壳牌研究有限公司 | Gasification reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |