CN203671632U - Energy-saving fan powder returning device - Google Patents
Energy-saving fan powder returning device Download PDFInfo
- Publication number
- CN203671632U CN203671632U CN201320746801.3U CN201320746801U CN203671632U CN 203671632 U CN203671632 U CN 203671632U CN 201320746801 U CN201320746801 U CN 201320746801U CN 203671632 U CN203671632 U CN 203671632U
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- boiler
- energy
- cyclone separator
- ajutage
- air supply
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Abstract
An energy-saving fan powder returning device comprises a primary boiler, a cyclone separator and a secondary boiler, wherein the cyclone separator is located between the primary boiler and the secondary boiler, a powder returning pipe is arranged at the bottom of the cyclone separator and communicated with the secondary boiler, the primary boiler is connected with a primary fan, a main air supply pipe used for communication is arranged between the primary fan and the primary boiler, a secondary air supply pipe is connected to the main air supply pipe, and the secondary air supply pipe is communicated with the middle of the powder returning pipe. According to the energy-saving fan powder returning device, by improving a current air supply mode and a current connecting mode, not only is waste of energy reduced, but also wind energy is fully utilized, and synchronous air supply is achieved.
Description
Technical field
The utility model relates to a kind of energy saver for boiler.
Background technology
The coal dust that boiler is used needs to use cyclone separator to process in burning, then sends into next stage boiler and again burns.In technique, generally adopt at present, first order boiler is blown with a breeze fan, and cyclone separator place is used back powder blower fan, utilizes back powder blower fan that coal dust is delivered in the boiler of the second level.Such structure is in the time of when operation breeze fan work, and back powder blower fan is also simultaneously in work, and the needed wind-force of back powder is little, and a breeze fan utilization rate is lower, has caused energy waste.
The material-returning device of former boiler be equipped with two special come 37KW roots blower, its advantage is that pressure head is large, and air quantity is little, if returning charge ash is more in the time throwing returning charge, while starting roots blower, a large amount of uncombusted coal ash enter burner hearth, can cause the bed material moment cannot fluidisation, as operation is easy to cause boiler coke or fire extinguishing not in time, cause steam pressure fluctuation excessive, affect the normal production of follow-up workshop section, if need apronbelt dynamic load in a small amount, starting roots blower has wasted again the energy.
Utility model content
The purpose of this utility model is to provide a kind of energy-saving type fan back powder device, saves energy consumption, saves the energy.
The technical solution of the utility model is:
Energy-saving type fan back powder device, comprise boiler, cyclone separator and secondary boiler one time, described cyclone separator is once between boiler and secondary boiler, the bottom of cyclone separator is provided with back powder pipe and is communicated with secondary boiler, a described boiler is connected with primary air fan, between described primary air fan and a boiler, be provided with the main ajutage for being communicated with, be connected with time ajutage on main ajutage, described time ajutage is communicated with the middle part of back powder pipe.
Described time ajutage pipeline is provided with valve.
Described valve is gate valve.
Inferior Duct diameter is 1/2 ~ 1/3 of main Duct diameter.
The utility model, by improving current air supply mode and connected mode, had both reduced energy waste, took full advantage of again wind energy, and had realized synchronous air-supply.The present invention is simple in structure, good in economic efficiency.In use, not only can meet the steam consumption of follow-up workshop section, and avoid the excessive impact on boiler load of returning charge ash, also save the power consumption of roots blower simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the utility model comprises boiler 1, cyclone separator 2 and secondary boiler 3 one time, cyclone separator 2 is once between boiler 1 and secondary boiler 3, the bottom of cyclone separator 2 is provided with back powder pipe 4 and is communicated with secondary boiler 3, one time boiler 1 is connected with primary air fan 5, between described primary air fan 5 and a boiler 1, be provided with the main ajutage 6 for being communicated with, be connected with time ajutage 7 on main ajutage 6, inferior ajutage 7 is communicated with the middle part of back powder pipe 4.The caliber of inferior ajutage 7 need to be only 1/2 ~ 1/3 of main ajutage 6, because it is less to be sent to the needed secondary blast amount of secondary boiler 3, so caliber meets the demands.Inferior ajutage 7 pipelines are provided with gate valve 8, and this is in order to overhaul or control air output.
Claims (4)
1. energy-saving type fan back powder device, it is characterized in that: comprise boiler, cyclone separator and secondary boiler one time, described cyclone separator is once between boiler and secondary boiler, the bottom of cyclone separator is provided with back powder pipe and is communicated with secondary boiler, a described boiler is connected with primary air fan, between described primary air fan and a boiler, be provided with the main ajutage for being communicated with, be connected with time ajutage on main ajutage, described time ajutage is communicated with the middle part of back powder pipe.
2. energy-saving type fan back powder device according to claim 1, is characterized in that: described time ajutage pipeline is provided with valve.
3. energy-saving type fan back powder device according to claim 2, is characterized in that: described valve is gate valve.
4. energy-saving type fan back powder device according to claim 1 and 2, is characterized in that: inferior Duct diameter is main Duct diameter 1/2 ~ 1/3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746801.3U CN203671632U (en) | 2013-11-25 | 2013-11-25 | Energy-saving fan powder returning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320746801.3U CN203671632U (en) | 2013-11-25 | 2013-11-25 | Energy-saving fan powder returning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671632U true CN203671632U (en) | 2014-06-25 |
Family
ID=50967921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320746801.3U Expired - Fee Related CN203671632U (en) | 2013-11-25 | 2013-11-25 | Energy-saving fan powder returning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203671632U (en) |
-
2013
- 2013-11-25 CN CN201320746801.3U patent/CN203671632U/en not_active Expired - Fee Related
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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: 20140625 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |