CN202382224U - Boiler flue gas waste-heat recovery system - Google Patents
Boiler flue gas waste-heat recovery system Download PDFInfo
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- CN202382224U CN202382224U CN2011205593984U CN201120559398U CN202382224U CN 202382224 U CN202382224 U CN 202382224U CN 2011205593984 U CN2011205593984 U CN 2011205593984U CN 201120559398 U CN201120559398 U CN 201120559398U CN 202382224 U CN202382224 U CN 202382224U
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- water
- boiler
- waste
- hot water
- operated valve
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Abstract
The utility model discloses a boiler flue gas waste-heat recovery system, which comprises a deaerization plant, a cold water pipe, a first cold water inlet air-operated valve, a boiler, a waste-heat recovery device and a hot water tank, wherein the cold water pipe is connected with the deaerization plant, and the first cold water inlet air-operated valve is connected on the cold water pipe; the boiler is connected with a water outlet pipe of the deaerization plant, and the waste-heat recovery device is connected with a boiler flue; and the hot water tank is connected with a water outlet of the waste-heat recovery device. A first water-level detector is arranged on the hot water tank, and the waste-heat recovery device is provided with a flue gas discharging port. A backwater port of the waste-heat recovery device is connected with the hot water tank and the cold water pipe through pipelines. A first hot water circulating pump and a hot water circulating air-operated valve are arranged on the pipeline for connecting the backwater port of the waste-heat recovery device with the hot water tank, and a second cold water inlet air-operated valve is arranged on the pipeline for connecting the backwater port of the waste-heat recovery device with the cold water pipe. The hot water circulating air-operated valve and the second cold water inlet air-operated valve are connected with the first water-level detector, a hot water inlet air-operated valve is connected with a second water-level detector arranged on the deaerization plant, and the first cold water inlet air-operated valve is connected with the second water-level detector.
Description
Technical field
The utility model relates to a kind of residual heat from boiler fume recovery system, more particularly, relates to a kind of residual heat from boiler fume that can utilize and produces hot water, reduces smog discharge temperature, can improve the residual heat from boiler fume recovery system of boiler operating efficiency again.
Background technology
The boiler design smog discharge temperature is greatly about 120-300 ℃ at present, and this exhaust gas temperature of boiler is quite high, has bigger value.This partial heat energy is discharged through boiler flue and has been slatterned at present, has caused the great amount of heat loss, can not fully utilize the energy, and contaminated environment.
The utility model content
The purpose of the utility model is to overcome above-mentioned defective in the prior art: provide a kind of residual heat from boiler fume that can utilize to produce hot water; Reduce smog discharge temperature; The comprehensive utilization energy is protected environment, can improve the residual heat from boiler fume recovery system of boiler operating efficiency again.
For realizing above-mentioned purpose, the technical scheme that the utility model provides is following: construct a kind of residual heat from boiler fume recovery system, comprise oxygen-eliminating device; The cold water pipe that is connected with oxygen-eliminating device; Be connected first cold water water inlet pneumatic operated valve on the cold water pipe,, be connected the boiler water supply pump on the oxygen-eliminating device outlet pipe with the boiler that the oxygen-eliminating device outlet pipe is connected; Also comprise the waste-heat recoverer that is connected with boiler flue; The boiler that is connected with the waste-heat recoverer delivery port is equiped with first water level detection gauge on the boiler, waste-heat recoverer is provided with flue gas discharge opening; The water return outlet of waste-heat recoverer is connected with boiler, cold water pipe through pipeline; Be equiped with first hot water circulating pump, hot water circuit pneumatic operated valve on the water return outlet of waste-heat recoverer and the pipeline that boiler is connected, be equiped with second cold water water inlet pneumatic operated valve on the water return outlet of waste-heat recoverer and the pipeline that cold water pipe is connected, said hot water circuit pneumatic operated valve, second cold water water inlet pneumatic operated valve are connected with first water level detection gauge.
Said oxygen-eliminating device is connected with the export pipeline of first hot water circulating pump, second hot water circulating pump through pipeline; Be equiped with hot water water inlet pneumatic operated valve on oxygen-eliminating device and the pipeline that the export pipeline of first hot water circulating pump, second hot water circulating pump is connected; This hot water water inlet pneumatic operated valve is connected with second water level detection gauge on being installed in oxygen-eliminating device, and first cold water pneumatic operated valve of intaking is connected with second water level detection gauge.
The beneficial effect of the said residual heat from boiler fume recovery system of the utility model is: through connecting waste-heat recoverer at boiler flue; The boiler that the waste-heat recoverer delivery port connects; Be equiped with first water level detection gauge on the boiler; Be equiped with first hot water circulating pump, hot water circuit pneumatic operated valve on the water return outlet of waste-heat recoverer and the pipeline that boiler is connected; Be equiped with second cold water water inlet pneumatic operated valve on the water return outlet of waste-heat recoverer and the pipeline that cold water pipe is connected, said hot water circuit pneumatic operated valve, second cold water water inlet pneumatic operated valve are connected with first water level detection gauge.When first water level detection gauge detects water level in the boiler and is lower than setting value; The hot water circuit pneumatic operated valve cuts out; Second cold water water inlet pneumatic operated valve is opened to the boiler moisturizing, and pneumatic operated valve cuts out otherwise second cold water is intake, and the hot water circuit pneumatic operated valve is opened; To the heating that circulates of the water in the boiler, produce hot water through first hot water circulating pump or second hot water circulating pump.When second water level detection gauge detected water level in the oxygen-eliminating device and is lower than setting value, hot water water inlet pneumatic operated valve cut out, and first cold water water inlet pneumatic operated valve is opened to the oxygen-eliminating device moisturizing; Otherwise first cold water water inlet pneumatic operated valve cuts out; Hot water water inlet pneumatic operated valve is opened, and through the boiler water supply pump hot water is sent into and is produced steam in the boiler, therefore; The temperature of supplying with the water of boiler gets significantly and improves, and can improve the efficient of boiler for producing steam.
Below in conjunction with accompanying drawing and embodiment the described residual heat from boiler fume recovery system of the utility model is described further:
Description of drawings
Fig. 1 is the system architecture schematic diagram of the utility model residual heat from boiler fume recovery system.
The specific embodiment
Below be the most preferred embodiment of the said residual heat from boiler fume recovery system of the utility model, therefore do not limit the protection domain of the utility model.
With reference to Fig. 1, a kind of residual heat from boiler fume recovery system is provided, comprise oxygen-eliminating device 1; The cold water pipe 2 that is connected with oxygen-eliminating device 1; Be connected first cold water water inlet pneumatic operated valve 3 on the cold water pipe 2,, be connected the boiler water supply pump 5 on oxygen-eliminating device 1 outlet pipe with the boiler 4 that oxygen-eliminating device 1 outlet pipe is connected; Also comprise the waste-heat recoverer 6 that is connected with boiler flue; The boiler 7 that is connected with waste-heat recoverer 6 delivery ports is equiped with first water level detection gauge 12 on the boiler 7, waste-heat recoverer 6 is provided with flue gas discharge opening 8; The water return outlet of waste-heat recoverer 6 is connected with boiler 7, cold water pipe 2 through pipeline; Be equiped with first hot water circulating pump 9, hot water circuit pneumatic operated valve 10 on the water return outlet of waste-heat recoverer 6 and the pipeline that boiler 7 is connected, be equiped with second cold water water inlet pneumatic operated valve 11 on the water return outlet of waste-heat recoverer 6 and the pipeline that cold water pipe 2 is connected, said hot water circuit pneumatic operated valve 10, second cold water water inlet pneumatic operated valve 11 are connected with first water level detection gauge 12.
Said waste-heat recoverer 6 is to be the heat pipe recover of medium with water.
A conduct that is equiped with on the water return outlet of said waste-heat recoverer 6 and the pipeline that boiler 7 is connected in second hot water circulating pump, 13, the first hot water circulating pumps 9, second hot water circulating pump 13 has pump.
Said oxygen-eliminating device 1 is connected through the export pipeline of pipeline with first hot water circulating pump 9, second hot water circulating pump 13; Be equiped with hot water water inlet pneumatic operated valve 14 on oxygen-eliminating device 1 and the pipeline that the export pipeline of first hot water circulating pump 9, second hot water circulating pump 13 is connected; This hot water water inlet pneumatic operated valve 14 is connected with second water level detection gauge 15 on being installed in oxygen-eliminating device 1, and first cold water pneumatic operated valve 3 of intaking is connected with second water level detection gauge 15.
When first water level detection gauge 12 detects water level in the boiler 7 and is lower than setting value; Hot water circuit pneumatic operated valve 10 cuts out; Second cold water water inlet pneumatic operated valve 11 is opened to boiler 7 moisturizings, and pneumatic operated valve 11 cuts out otherwise second cold water is intake, and hot water circuit pneumatic operated valve 10 is opened; Through the heating that circulates of the water in first hot water circulating pump 9 or 13 pairs of boilers of second hot water circulating pump 7, production hot water.When second water level detection gauge 15 detects water level in the oxygen-eliminating device 1 and is lower than setting value; Hot water water inlet pneumatic operated valve 14 cuts out, and first cold water water inlet pneumatic operated valve 3 is opened to oxygen-eliminating device 1 moisturizing, otherwise first cold water water inlet pneumatic operated valve 3 cuts out; Hot water water inlet pneumatic operated valve 14 is opened; Through boiler water supply pump 5 hot water is sent in the boiler 4 and to be produced steam, improved the temperature of supplying with the water of boiler greatly, can improve the efficient of boiler for producing steam.
The bottom of said boiler 7 is equiped with heat supply water pipe 16, and top is equiped with overflow pipe 17.
Be equiped with first temperature sensor 18 that is used to detect the hot water temperature on the outlet pipeline of said waste-heat recoverer 6; Be used to monitor the temperature of hot water; Be equiped with second temperature sensor 19 that is used to detect flue-gas temperature on the flue gas discharge opening 8 of waste-heat recoverer 6, be used to monitor the temperature of flue gas.
The foregoing description is the utility model preferred implementation; But the embodiment of the utility model is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit and the principle of the utility model, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within the protection domain of the utility model.
Claims (6)
1. residual heat from boiler fume recovery system; Comprise oxygen-eliminating device (1); The cold water pipe (2) that is connected with oxygen-eliminating device (1) is connected first cold water water inlet pneumatic operated valve (3) on the cold water pipe (2), the boiler (4) that is connected with oxygen-eliminating device (1) outlet pipe; Be connected the boiler water supply pump (5) on oxygen-eliminating device (1) outlet pipe; It is characterized in that, also comprise the waste-heat recoverer (6) that is connected with boiler flue, the boiler (7) that is connected with waste-heat recoverer (6) delivery port; Be equiped with first water level detection gauge (12) on the boiler (7); Waste-heat recoverer (6) is provided with flue gas discharge opening (8), and the water return outlet of waste-heat recoverer (6) is connected with boiler (7), cold water pipe (2) through pipeline, is equiped with first hot water circulating pump (9), hot water circuit pneumatic operated valve (10) on the water return outlet of waste-heat recoverer (6) and the pipeline that boiler (7) is connected; Be equiped with second cold water water inlet pneumatic operated valve (11) on the water return outlet of waste-heat recoverer (6) and the pipeline that cold water pipe (2) is connected, said hot water circuit pneumatic operated valve (10), second cold water water inlet pneumatic operated valve (11) are connected with first water level detection gauge (12).
2. 1 described residual heat from boiler fume recovery system as requested is characterized in that said waste-heat recoverer (6) is to be the heat pipe recover of medium with water.
3. 1 described residual heat from boiler fume recovery system as requested is characterized in that, is equiped with second hot water circulating pump (13) on the water return outlet of said waste-heat recoverer (6) and the pipeline that boiler (7) is connected.
4. 3 described residual heat from boiler fume recovery systems as requested; It is characterized in that; Said oxygen-eliminating device (1) is connected with the export pipeline of first hot water circulating pump (9), second hot water circulating pump (13) through pipeline; Be equiped with hot water water inlet pneumatic operated valve (14) on oxygen-eliminating device (1) and the pipeline that the export pipeline of first hot water circulating pump (9), second hot water circulating pump (13) is connected; This hot water water inlet pneumatic operated valve (14) is connected with second water level detection gauge (15) on being installed in oxygen-eliminating device (1), and first cold water pneumatic operated valve (3) of intaking is connected with second water level detection gauge (15).
5. 1 described residual heat from boiler fume recovery system as requested is characterized in that the bottom of said boiler (7) is equiped with heat supply water pipe (16), and top is equiped with overflow pipe (17).
6. 1 described residual heat from boiler fume recovery system as requested; It is characterized in that; Be equiped with first temperature sensor (18) that is used to detect the hot water temperature on the outlet pipeline of said waste-heat recoverer (6), be equiped with second temperature sensor (19) that is used to detect flue-gas temperature on the flue gas discharge opening (8) of waste-heat recoverer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593984U CN202382224U (en) | 2011-12-28 | 2011-12-28 | Boiler flue gas waste-heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205593984U CN202382224U (en) | 2011-12-28 | 2011-12-28 | Boiler flue gas waste-heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382224U true CN202382224U (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205593984U Expired - Fee Related CN202382224U (en) | 2011-12-28 | 2011-12-28 | Boiler flue gas waste-heat recovery system |
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| Country | Link |
|---|---|
| CN (1) | CN202382224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442380A (en) * | 2018-10-19 | 2019-03-08 | 王琳 | A kind of boiler feedwater control and waste heat recycles and deoxidation method |
-
2011
- 2011-12-28 CN CN2011205593984U patent/CN202382224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442380A (en) * | 2018-10-19 | 2019-03-08 | 王琳 | A kind of boiler feedwater control and waste heat recycles and deoxidation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN MEISHENGDA SCIENCE + TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WANG HONGBIN Effective date: 20140415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523000 DONGGUAN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140415 Address after: 518000, Guangdong, Shenzhen province Luohu District Biguiyuan street, Shennan East Road, Xing Xing Plaza (ground Wang Dasha) main building 2502 Patentee after: Shenzhen Meishengda Science & Technology Co., Ltd. Address before: South Peak Center No. 106 building, 523000 Guangdong Province, Dongguan City Nancheng Hongfu Road, 11 floor Patentee before: Wang Hongbin |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN MAYSUNDAY SCIENCE AND TECHNOLOGY CO., LTD Free format text: FORMER NAME: SHENZHEN MEISHENGDA SCIENCE + TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518000, Guangdong, Shenzhen province Luohu District Biguiyuan street, Shennan East Road, Xing Xing Plaza (ground Wang Dasha) main building 2502 Patentee after: Shenzhen still Technology Co., Ltd. Address before: 518000, Guangdong, Shenzhen province Luohu District Biguiyuan street, Shennan East Road, Xing Xing Plaza (ground Wang Dasha) main building 2502 Patentee before: Shenzhen Meishengda Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |