CN202692422U - Novel coal saving device of coal-fired boiler - Google Patents
Novel coal saving device of coal-fired boiler Download PDFInfo
- Publication number
- CN202692422U CN202692422U CN 201220345170 CN201220345170U CN202692422U CN 202692422 U CN202692422 U CN 202692422U CN 201220345170 CN201220345170 CN 201220345170 CN 201220345170 U CN201220345170 U CN 201220345170U CN 202692422 U CN202692422 U CN 202692422U
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- tube
- coal
- saving device
- boiler
- flange
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Abstract
The utility model discloses a novel coal saving device of a coal-fired boiler. The novel coal saving device can be sleeved at the outlet of the smoke channel of the boiler. The main body of the coal saving device is a U-shaped tube of which one opening faces upwards, the tube wall is formed by welding steel plates which are 3-4 mm in length, and the lower part of the U-shaped tube is provided with a dust cleaning hole. In addition, a boiler water supplying tube is arranged in the U-shaped tube. The boiler water supplying tube is a finned tube which is arranged in a snake shape by a manner of reciprocating. The water inlet of the finned tube is located at the air outlet end of the U-shaped tube, and the water outlet of the finned tube is located at the air inlet end of the U-shaped tube. In addition, a flange shell is welded on the finned tube, and the flange shell is fixed through a taper press cover and a connection screw rod. The novel coal saving device of the coal-fired boiler can be conveniently processed and easily assembled, has convenience for cleaning the dust and the advantage of long service life and can be conveniently changed and maintained.
Description
Technical field
The utility model relates to boiler plant, is specially a kind of Novel coal-fired boiler coal saving device.
Background technology
General in the workshop of large size industrial enterprise, many heats are all taken away by flue gas in the boiler, cause a large amount of energy wastes, thereby economizer is installed all in many boilers, the economizer of this traditional structure just arranges bypass in the boiler draft exit usually, arrange in the bypass that very close heat exchanger tube is as the water inlet heating, wherein ventilation gap is very little, coal-burning boiler air inducing lime-ash is many, also is easy to stop up, can not be clean clearly lime-ash when maintenance, cause the economizer heat-exchange capacity to descend, smoke pipe end exhaust gas temperature raises, and boiler efficiency reduces, and finally causes economizer to lose efficacy and scraps.
The utility model content
The technical problem that the utility model solves is to provide a kind of Novel coal-fired boiler coal saving device, necessary channel as its air inducing, reasonable in design on the structure, the assurance air channel is smooth, and heat exchanger tube is convenient to dismounting more, and its energy-saving effect is obvious, deashing is easy, safeguard and change conveniently, long service life can be in order to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
The Novel coal-fired boiler coal saving device can be placed in the Boiler smoke tube exit, and its main body is an opening up U-shaped square tube, and its tube wall adopts Plate Welding to form, and is provided with ash removing opening in the bottom of U-shaped pipe, in addition, also is provided with boiler feed pipe in U-shaped pipe pipe; Described boiler feed pipe is the finned tube of snakelike reciprocal installation, and the water inlet of finned tube is positioned at the gas outlet end of U-shaped pipe, and the delivery port of finned tube is positioned at the air inlet end of U-shaped pipe; In addition, also be welded with the flange shell on finned tube, the flange shell is fixed by tapering gland and connection wire rod.
In the utility model, described ash removing opening place arranges flange-interface and at flange-interface the push-and-pull gate is installed, and in order to convenient U-shaped pipe is carried out timely deashing.
In the utility model, when finned tube is installed, must fill up asbestos board in the middle of two ring flanges of flange shell, and in the tapering gap of tapering gland, also be filled with asbestos cord.
In the utility model, U-shaped pipe bottom adopts leg to make, and leg adopts channel-section steel to make.
Beneficial effect: the utility model can effectively utilize fume afterheat to come boiler feed water is carried out preheating, greatly reduce on the one hand exhaust gas temperature, effectively utilized on the other hand heat loss due to exhaust gas, under the normal operation, can be with 6 ℃ ~ 10 ℃ of boiler feed water preheatings, and owing to adopting the fin tube structure of snakelike connection in the pipe, the space is larger, deashing is easy, and lime-ash is difficult for piling up the obstruction air channel, cooperates the convenient in time removing of maintenance flange lime-ash, guarantee that effectively the air channel is unimpeded, can fall the service life of end exhaust gas temperature prolonged boiler air-introduced machine, again can larger raising boiler feed temperature, and good energy-conserving effect.
Description of drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Fig. 2 is the A-A profile of the utility model preferred embodiment.
Fig. 3 is the I place partial enlarged drawing in the A-A section in the utility model preferred embodiment.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Preferred embodiment referring to the Novel coal-fired boiler coal saving device of Fig. 1, the present embodiment is applicable to 6 tons of boilers, wherein, U-shaped pipe 1 tube wall adopts 8mm and the thick Plate Welding of 4mm to form, and left end is air inlet, right-hand member is the gas outlet, accordingly, the left end of wave-fin pipe is outlet pipe 3, and right-hand member is water inlet pipe 4, water inlet pipe 4 and outlet pipe 3 adopt gusset firmly to be welded on the U-shaped tube sheet of main body, to guarantee the fixing of whole relative position; And water inlet pipe is arranged on the air outlet of economizer, and outlet pipe is arranged on the high-temperature region of the air inlet of economizer, is convenient to heat exchange; Whole U-shaped pipe bottom is supported as leg 6 with four No. 14 channel-section steels, and also being welded with cushion block 5 in the junction of leg 6 and U-shaped pipe 1 body reinforces, simultaneously, bottom at U-shaped pipe 1 also is provided with ash removing opening, ash removing opening connects with flange, and taking flange apart is exactly a manhole, is convenient to clear up lime-ash, and at flange-interface installation push-and-pull gate 7, can put ash at any time.
Referring to Fig. 2, the detail view of the finned tube 2 of the present embodiment of Fig. 3 as can be known, end surfaces at finned tube 2 is welded with the tapering flange, flange shell 12 is welded relatively for the steel plate with two thick 8mm of installing hole, and fixing by tapering gland 9 and connection wire rod 10, tapering gland 9 is spiral marking connection with outward flange, connection wire rod 10 adopts welding with inner flange, tapering gland 9 outsides with tapering and and the flange mounting hole of flange shell 12 between have the gap, during installation, be lined with the red asbestos board 11 of pressure high-temp resistant between inner flange and the outward flange, outward flange then car has screw thread, be convenient to compress the asbestos cord 8 in the inner flange tapering gap, to guarantee the air channel sealing.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the Novel coal-fired boiler coal saving device can be placed in the Boiler smoke tube exit, it is characterized in that, its main body is an opening up U-shaped square tube, and its tube wall adopts Plate Welding to form, and is provided with ash removing opening in the bottom of U-shaped pipe, in addition, in U-shaped pipe pipe, also be provided with boiler feed pipe; Described boiler feed pipe is the finned tube of snakelike reciprocal installation, and the water inlet of finned tube is positioned at the gas outlet end of U-shaped pipe, and the delivery port of finned tube is positioned at the air inlet end of U-shaped pipe; In addition, also be welded with the flange shell on finned tube, the flange shell is fixed by tapering gland and connection wire rod.
2. Novel coal-fired boiler according to claim 1 coal saving device is characterized in that, described ash removing opening place arranges flange-interface and at flange-interface the push-and-pull gate is installed.
3. Novel coal-fired boiler according to claim 1 coal saving device is characterized in that, must the pad asbestos board in the middle of two ring flanges of flange shell, and in the tapering gap of tapering gland, also be filled with asbestos cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345170 CN202692422U (en) | 2012-07-17 | 2012-07-17 | Novel coal saving device of coal-fired boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345170 CN202692422U (en) | 2012-07-17 | 2012-07-17 | Novel coal saving device of coal-fired boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202692422U true CN202692422U (en) | 2013-01-23 |
Family
ID=47548032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345170 Expired - Fee Related CN202692422U (en) | 2012-07-17 | 2012-07-17 | Novel coal saving device of coal-fired boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202692422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444399A (en) * | 2014-08-27 | 2016-03-30 | 谭美俊 | Boiler waste heat utilizing device |
-
2012
- 2012-07-17 CN CN 201220345170 patent/CN202692422U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444399A (en) * | 2014-08-27 | 2016-03-30 | 谭美俊 | Boiler waste heat utilizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140717 |
|
| EXPY | Termination of patent right or utility model |