CN2807003Y - Boiler waste heat utilizing device - Google Patents
Boiler waste heat utilizing device Download PDFInfo
- Publication number
- CN2807003Y CN2807003Y CN 200520072304 CN200520072304U CN2807003Y CN 2807003 Y CN2807003 Y CN 2807003Y CN 200520072304 CN200520072304 CN 200520072304 CN 200520072304 U CN200520072304 U CN 200520072304U CN 2807003 Y CN2807003 Y CN 2807003Y
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- CN
- China
- Prior art keywords
- heat exchanger
- boiler
- water
- flue
- pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to an utilizing device for the residual heat of a boiler, which comprises an induced draft fan which is arranged at the back of a smoke flue of a boiler and a heat exchanger which is arranged in a smoke flue arranged between a smoke outlet of the boiler and the induced draft fan, wherein an open type water replenishing tank is arranged above the heat exchanger, and the open type water replenishing tank is connected with a water inlet of the heat exchanger through a water inlet pipeline; a water outlet of the heat exchanger is connected with a water pump through a water outlet pipeline, and the water pump is connected with a water inlet of a steam bag of the boiler a through pipeline. The utility model has the advantages that the heat exchanger can be in operation under ordinary pressure, the cost is low, the heat exchange efficiency is high and the service life is long.
Description
Technical field
The utility model relates to afterheat utilization device in a kind of boiler flue.
Background technology
Traditional boiler flue residual heat using device mainly comprises boiler, be arranged on the flue on the boiler, be arranged on the heat exchanger in the flue between boiler flue outlet and the boiler induced-draft fan, be connected with into water, outlet conduit on the heat exchanger, the high-temperature flue gas of discharging during boiler combustion is when pipeline discharges, heat exchanger in the pipeline is heated, the water of heat exchanger of flowing through heats up after absorbing waste heat in the flue gas, be transported in the boiler-steam dome by water pump again, waste heat in the flue gas just obtains recycling like this, thereby improves the utilization of boiler to the energy.During work, the soft water in the water tank is transported in the heat exchanger through water pump, and the soft water behind the absorption heat is again in check-valves flows to boiler.Because soft water is in water pump is delivered into heat exchanger the time, the heat exchanger domestic demand is born bigger pressure, so this heat exchanger generally adopts cast-iron pipe or the higher steel pipe of cost to make.Mainly there are following shortcomings in this device when using: 1, because the pipeline of this heat exchanger is a pressure-containing parts, so the duct wall of its heat exchanger is thicker, and bore is corresponding less, thereby has reduced effective heat transfer area; Cause heat transfer efficiency to descend; 2, since the heat exchanger inherence do not have current through the time, the dry blowing phenomenon can take place in the pipe, therefore, when having cold water to flow through in the pipe once more, heat exchanger is subject to the influence of rapid heat cycle, thereby the service life of shortening heat interchanger.
Summary of the invention
The purpose of this utility model is to provide a kind of heat exchanger to work under normal pressure, and can make the boiler afterheat use device of the long-time steady operation of heat exchanger.
For realizing the purpose of this utility model, a kind of boiler afterheat use device comprises the flue that is arranged on the boiler outlet flue, be arranged on the air-introduced machine at flue rear portion, and be arranged on heat exchanger in the flue between boiler outlet flue and the air-introduced machine, the top of described heat exchanger is provided with the opened type water supply tank, the opened type water supply tank joins by the water inlet of inlet channel and heat exchanger, and the delivery port of heat exchanger joins by outlet conduit and water pump, and water pump joins by pipeline and boiler-steam dome water inlet.
The utility model has the advantages that:, can adopt the lower common material of price when therefore making heat exchanger, thereby when reducing cost, can also provide its heat exchange efficiency because heat exchanger is worked under normal pressure; Owing to above heat exchanger, be provided with the opened type water supply tank, therefore avoided the dried baking of heat exchanger, prolonged its service life.
Description of drawings
Below in conjunction with accompanying drawing the utility model boiler afterheat use device is described in further detail:
Fig. 1 is the structural representation of the utility model boiler afterheat use device.
Among the figure: 1, boiler, 2, the drum water inlet, 3, flue, 4, opened type water supply tank, 5, fluid level controller, 6, water inlet pipe, 7, pipeline, 8, delivery port, 9, heat exchanger, 10, water pump, 11, flow control valve, 12, air-introduced machine, 13, water inlet, 14, boiler feedwater interface, 15, check-valves.
The specific embodiment
As shown in Figure 1, for a kind of boiler afterheat use device comprises pot 1, be arranged on the flue 3 of boiler 1 outlet flue, be arranged on the air-introduced machine 12 at flue 3 rear portions, and be arranged on heat exchanger 9 in the flue between boiler 1 outlet flue and the air-introduced machine 12 3, the top of heat exchanger 9 is provided with opened type water supply tank 4, be provided with fluid level controller 5 in the opened type water supply tank 4 and connect with water inlet pipe 6, opened type water supply tank 4 is connected with the water inlet 13 of heat exchanger 9 by inlet channel 7, the delivery port 8 of heat exchanger 9 is by boiler feedwater interface 14, outlet conduit 7 is connected with water pump 10, water pump 10 is connected with boiler-steam dome water inlet 2 by pipeline 7, the delivery port 8 of heat exchanger 9 is connected with opened type water supply tank 4 by water return pipeline, and the pipeline between water pump 10 and the boiler-steam dome water inlet 2 is provided with flow control valve 11 and check-valves 15.
When this boiler afterheat use device uses, the high-temperature flue gas that boiler 1 burning is discharged is by flue 3 heat exchanger 9 of flowing through, soft water in the opened type water supply tank 4 is by the heat in the water inlet 13 inflow heat exchangers 9 absorption flue gases simultaneously, and then from delivery port 8 outflows, water after heating is transported to boiler-steam dome water inlet 2 at last by water pump 10 and enters in the boiler 1, like this, the waste heat of boiler combustion generation just has been absorbed and used.
In the above-mentioned boiler afterheat use device, described heat exchanger 9 can adopt bundled tube structure or tube shell type structure to make usually, also can adopt board-like other structure that waits to make, because the structure of heat exchanger 9 is prior aries commonly used, therefore, in the utility model, just no longer its structure is launched and described in detail.
In boiler afterheat use device of the present utility model, because the position of opened type water supply tank 4 is higher than heat exchanger 9, therefore, just having water in the heat exchanger 9 all the time exists, this heat exchanger 9 can not done the baking phenomenon because of anhydrous the generation, also can guarantee this heat exchanger 9 operate as normal under normal pressure simultaneously.In addition, owing between the delivery port 8 of heat exchanger 9 and opened type water supply tank 4, be provided with connecting pipe, therefore, even under water pump 10 idle situations, the steam of vaporization can enter in the opened type water supply tank 4 in the heat exchanger 9, can further guarantee not produce in the heat exchanger 9 and do the baking phenomenon, thereby guarantee the normal use of this device.
Claims (3)
1, a kind of boiler afterheat use device comprises the flue (3) that is arranged on boiler (1) outlet flue, be arranged on the air-introduced machine (12) at flue (3) rear portion, and be arranged on heat exchanger (9) in the flue (3) between boiler (1) outlet flue and the air-introduced machine (12), it is characterized in that: the top of described heat exchanger (9) is provided with opened type water supply tank (4), opened type water supply tank (4) joins by the water inlet (13) of inlet channel (7) with heat exchanger (9), the delivery port (8) of heat exchanger (9) joins by outlet conduit and water pump (10), and water pump (10) joins by pipeline and boiler-steam dome water inlet (2).
2, a kind of boiler afterheat use device according to claim 1 is characterized in that: the delivery port (8) of described heat exchanger (9) is connected with opened type water supply tank (4) by water return pipeline.
3, a kind of boiler afterheat use device according to claim 1 and 2 is characterized in that: the pipeline between described water pump (10) and the boiler-steam dome water inlet (2) is provided with flow control valve (11) and check-valves (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072304 CN2807003Y (en) | 2005-05-31 | 2005-05-31 | Boiler waste heat utilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072304 CN2807003Y (en) | 2005-05-31 | 2005-05-31 | Boiler waste heat utilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807003Y true CN2807003Y (en) | 2006-08-16 |
Family
ID=36921303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072304 Expired - Fee Related CN2807003Y (en) | 2005-05-31 | 2005-05-31 | Boiler waste heat utilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807003Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032550A (en) * | 2011-01-07 | 2011-04-27 | 张蕾 | Device for preheating boiler water by flue gas from boiler chimney |
| CN102269401A (en) * | 2010-06-07 | 2011-12-07 | 洛阳蓝海实业有限公司 | Low-temperature flue gas waste heat recovery utilization method |
| CN103134043A (en) * | 2013-01-29 | 2013-06-05 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN104949099A (en) * | 2015-07-03 | 2015-09-30 | 上海顶梁机电设备有限公司 | Boiler with waste heat recovering and using functions |
-
2005
- 2005-05-31 CN CN 200520072304 patent/CN2807003Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269401A (en) * | 2010-06-07 | 2011-12-07 | 洛阳蓝海实业有限公司 | Low-temperature flue gas waste heat recovery utilization method |
| CN102032550A (en) * | 2011-01-07 | 2011-04-27 | 张蕾 | Device for preheating boiler water by flue gas from boiler chimney |
| CN102032550B (en) * | 2011-01-07 | 2013-02-06 | 张蕾 | Device for preheating boiler water by flue gas from boiler chimney |
| CN103134043A (en) * | 2013-01-29 | 2013-06-05 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN103134043B (en) * | 2013-01-29 | 2015-04-08 | 北京源深节能技术有限责任公司 | Boiler system with U-shaped flue and boiler water charging system |
| CN104949099A (en) * | 2015-07-03 | 2015-09-30 | 上海顶梁机电设备有限公司 | Boiler with waste heat recovering and using functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |