CN203421676U - Slag heat recovery structure - Google Patents
Slag heat recovery structure Download PDFInfo
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- CN203421676U CN203421676U CN201320394236.9U CN201320394236U CN203421676U CN 203421676 U CN203421676 U CN 203421676U CN 201320394236 U CN201320394236 U CN 201320394236U CN 203421676 U CN203421676 U CN 203421676U
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- pipeline
- slag
- temperature
- control valve
- cryopumping
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Abstract
The utility model discloses a slag heat recovery structure and relates to the technical field of waste heat recovery. The slag heat recovery structure comprises a flue shunting device, wherein the flue shunting device is connected with a waste gas outlet of a slag cooler and communicated with a coal economizer and a dust collector respectively. The flue shunting device is used for automatically leading high temperature flue gases into the coal economizer for waste heat recycling, and automatically leading low temperature flue gases into the dust collector for purification, so that the high temperature flue gases can be recovered, the dust collector is protected, and the reduction of the heat recovery efficiency of the coal economizer due to the fact that the flue gases of which temperatures are too low are discharged into the coal economizer is prevented.
Description
Technical field
The utility model relates to heat recovery technology field, specifically a kind of slag recuperation of heat guiding device.
Background technology
In China, thermal power generation remains the main force of supply of electric power, current, thermal power generation is mainly usingd coal as fuel, and coal has cinder after burning, and cinder can reclaim collection through slag cooler, in slag cooler, say cinder separation, the flue dust of separating is passed into after deduster purifies and discharges atmosphere.Because the cinder after burning still has very high waste heat, the flue dust of separating from slag cooler has just brought out the most heat of cinder, temperature is up to several Baidu, other of these high heat directly enter atmosphere, waste large calorimetric on the one hand, will cause very large injury to deduster on the other hand, accelerated the aging of deduster, even make deduster breaking out of fire, this is the problem that we should solve.
Summary of the invention
The deficiency that the utility model exists in order to overcome prior art, provides a kind of slag recuperation of heat structure.
The utility model can be by taking following technical scheme to be achieved:
A recuperation of heat structure, comprises that described waste gas outlet is connected to flue part flow arrangement with the slag cooler of slag input pipeline, slag tap pipeline and waste gas outlet.
Described flue part flow arrangement comprises admission line, high-temperature exhaust air pipeline and cryopumping pipeline, described admission line is communicated with described waste gas outlet, described admission line, high-temperature exhaust air pipeline and cryopumping pipeline are interconnected, described high-temperature exhaust air pipeline connects the economizer flue of logical existing boiler, the flue of the existing deduster of described cryopumping pipeline communication, in described admission line, be provided with temperature sensor, in described high-temperature exhaust air pipeline and cryopumping pipeline, be provided with electric control valve.
Described flue part flow arrangement also comprises control device, and described control device is electrically connected to temperature sensor and electric control valve respectively.
When described control device receives the low-temperature signal that temperature sensor detects, open the electric control valve and the electric control valve of closing described high-temperature exhaust air pipeline of described cryopumping pipeline; When described control device receives the high temperature signal that temperature sensor detects, open the electric control valve and the electric control valve of closing described cryopumping pipeline of described high-temperature exhaust air pipeline.
Compared with prior art; the beneficial effects of the utility model are: by flue part flow arrangement, automatically high-temperature flue gas is drained in economizer waste heat is recycled and automatically low-temperature flue gas drained in deduster and purified; both guaranteed that high-temperature flue gas can be recovered and protect deduster, prevented again that the too low flue gas of temperature from entering economizer and causing economizer to reclaim hot decrease in efficiency.
It is specially: 1, the waste gas of CFBB deslagging (approximately 500 ℃ of left and right of temperature) is directly introduced to electric cleaner flue by former design and change into and enter economizer flue place;
2, utilize the temperature of temperature sensor measurement boiler slag removal waste gas; judgement by-pass valve control by controller opens and closes change flue gas flow direction automatically; when the temperature of deslagging waste gas is during higher than the temperature of economizer entrance and the dew point of deslagging waste gas; deslagging waste gas enters economizer and air preheater carries out heat exchange, thereby reach the effect of dust-removal cloth-bag in waste heat recovery and protection deduster.When the temperature of deslagging waste gas is during lower than the temperature of economizer entrance or lower than the dew point of deslagging waste gas, deslagging waste gas directly enters deduster flue, thereby has avoided the cold end corrosion of economizer and air preheater.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of slag recuperation of heat structure of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, most preferred embodiment of the present utility model is described in detail.
Slag recuperation of heat structure as shown in Figure 1, comprises that waste gas outlet 3 is connected to flue part flow arrangement with the slag cooler 4 of slag input pipeline 1, slag tap pipeline 2 and waste gas outlet 3.
Flue part flow arrangement comprises admission line 5, high-temperature exhaust air pipeline 6, cryopumping pipeline 7 and control device, admission line 5 is communicated with waste gas outlet 3, admission line 5, high-temperature exhaust air pipeline 6 and cryopumping pipeline 7 are interconnected, high-temperature exhaust air pipeline 6 connects the economizer flue of logical existing boiler, cryopumping pipeline 7 is communicated with the flue of existing deduster, in admission line 5, be provided with temperature sensor 8, in high-temperature exhaust air pipeline 6 and cryopumping pipeline 7, be provided with electric control valve and (comprise the electric control valve 9 of high-temperature exhaust air pipeline and the valve 10 of cryopumping pipeline, lower same), control device is electrically connected to temperature sensor 8 and electric control valve respectively.
Control principle: when control device receives the low-temperature signal that temperature sensor 8 detects, open the electric control valve 10 of cryopumping pipeline 7 and close the electric control valve 9 of high-temperature exhaust air pipeline 6, flue gas is directly entered to deduster; When control device receives the high temperature signal that temperature sensor 8 detects, open the electric control valve 9 and the electric control valve 10 of closing cryopumping pipeline 7 of high-temperature exhaust air pipeline 6, flue gas is entered to economizer.
The high temperature threshold values of control device and low temperature threshold values are to allow to arrange, and this threshold values should arrange accordingly according to the working stability scope of the operating temperature range of adopted economizer and deduster.
Only as described above, it is only the preferred embodiment of the utility model, when not limiting with this scope of the utility model enforcement, the content of generally recording according to the utility model claim and utility model description has been done simple equivalence and has been changed and modify, within all still belonging to the utility model claim scope.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the interest field of the utility model.
Claims (4)
1. a slag recuperation of heat structure, comprises with the slag cooler of slag input pipeline, slag tap pipeline and waste gas outlet, and it is characterized in that, described waste gas outlet is connected to flue part flow arrangement.
2. slag recuperation of heat structure according to claim 1, it is characterized in that described flue part flow arrangement comprises admission line, high-temperature exhaust air pipeline and cryopumping pipeline, described admission line is communicated with described waste gas outlet, described admission line, high-temperature exhaust air pipeline and cryopumping pipeline are interconnected, in described admission line, be provided with temperature sensor, in described high-temperature exhaust air pipeline and cryopumping pipeline, be provided with electric control valve.
3. slag recuperation of heat structure according to claim 2, is characterized in that described flue part flow arrangement also comprises control device, and described control device is electrically connected to temperature sensor and electric control valve respectively.
4. slag recuperation of heat structure according to claim 3, it is characterized in that, when described control device receives the low-temperature signal that temperature sensor detects, open the electric control valve and the electric control valve of closing described high-temperature exhaust air pipeline of described cryopumping pipeline; When described control device receives the high temperature signal that temperature sensor detects, open the electric control valve and the electric control valve of closing described cryopumping pipeline of described high-temperature exhaust air pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320394236.9U CN203421676U (en) | 2013-07-04 | 2013-07-04 | Slag heat recovery structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320394236.9U CN203421676U (en) | 2013-07-04 | 2013-07-04 | Slag heat recovery structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421676U true CN203421676U (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320394236.9U Expired - Lifetime CN203421676U (en) | 2013-07-04 | 2013-07-04 | Slag heat recovery structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203421676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804939A (en) * | 2019-03-21 | 2019-05-28 | 深圳德里克设备有限公司 | Cultivating system and control method |
| CN109897658A (en) * | 2019-04-12 | 2019-06-18 | 成都益海环保技术研究院(有限合伙) | A kind of device using cow dung production steel carbon |
-
2013
- 2013-07-04 CN CN201320394236.9U patent/CN203421676U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109804939A (en) * | 2019-03-21 | 2019-05-28 | 深圳德里克设备有限公司 | Cultivating system and control method |
| CN109897658A (en) * | 2019-04-12 | 2019-06-18 | 成都益海环保技术研究院(有限合伙) | A kind of device using cow dung production steel carbon |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |