CN201072301Y - Flue gas air quantity control device for power generation by sintered waste heat - Google Patents
Flue gas air quantity control device for power generation by sintered waste heat Download PDFInfo
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- CN201072301Y CN201072301Y CNU2007200250869U CN200720025086U CN201072301Y CN 201072301 Y CN201072301 Y CN 201072301Y CN U2007200250869 U CNU2007200250869 U CN U2007200250869U CN 200720025086 U CN200720025086 U CN 200720025086U CN 201072301 Y CN201072301 Y CN 201072301Y
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- petticoat pipe
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Abstract
The utility model provides a technical proposal of a device for controlling fume air volume in sintering waste heat power generating. The technical proposal is characterized in that a low-temperature zone chimney of a low-temperature zone smoke cover that is adjacent to a high-temperature zone smoke cover is provided with a low-temperature fume connection pipe which is connected with a waste heat boiler fume input pipe and a circulation fume connection pipe that is connected with a circulation smoke pipe, and a next low-temperature zone chimney is provided with a circulation fume connection pipe that is connected with a circulation smoke pipe, which is connected with a circulation fume inlet pipe, which is connected to a belt cooling machine wind box that is corresponding to the high-temperature zone smoke cover. A high-temperature output fume valve is positioned on a high-temperature fume connection pipe; a low-temperature output fume valve is positioned on a low-temperature fume connection pipe; a circulation fume output valve is positioned on a circulation fume connection pipe; a circulation fume input valve is positioned on the circulation fume inlet pipe; the valves are connected with an output end of a controller through leads respectively. A smoke cover sensor is positioned in the low-temperature zone smoke cover; a chimney temperature sensor is positioned on the low-temperature zone chimney; the two sensors are connected with an input end of the controller through leads respectively.
Description
Technical field:
The utility model relates to a kind of air quantity controller, the control device of flue gas air quantity in especially a kind of sintering waste heat generating.
Background technology:
At present, the high-temperature flue gas cogeneration that utilizes sintering deposit to produce in cooling procedure is the new technology that domestic steel industry reduces the energy consumption per ton steel coefficient.Method is to utilize sintering deposit to pass through air blast air-supply cooling below the belt-cooling machine, produces and is sent to waste heat boiler production steam-electric power after high-temperature flue gas is reclaimed by petticoat pipe.But sintering deposit cools off the flue gas that is produced on belt-cooling machine, is the front end temperature height of belt-cooling machine, and the temperature of tail end is low, in the prior art, has only the flue gas of belt-cooling machine front end high-temperature region to utilize, and the flue gas of low-temperature space does not just have value directly to emit.And the temperature of high-temperature region flue gas can only satisfy the basic demand of boiler for producing steam, so the steam parameter that boiler produces is low, and the acting ability, generated energy is just few, and this is the existing in prior technology weak point.
Summary of the invention:
The purpose of this utility model, be exactly at the existing in prior technology deficiency, and provide the control device technical scheme of flue gas air quantity in a kind of sintering waste heat generating, this scheme adopts the flue gas with the belt-cooling machine low-temperature space to be reclaimed by the low-temperature space petticoat pipe, draw from the low-temperature space chimney, give in the air compartment corresponding under the petticoat pipe of belt-cooling machine high-temperature region and send into heating once more by air blast, and the control air quantity reaches optimum Match, thereby improve the temperature of high-temperature region flue gas, this has not only utilized the low-temperature space flue gas, can reduce simultaneously the pollution that discharging causes, can obtain the steam parameter raising that high-temperature flue gas produces waste heat boiler again, also just improve generated energy.
This programme is realized by following technical measures: the air compartment and the air blast that include belt-cooling machine and belt-cooling machine bottom, and the petticoat pipe on belt-cooling machine top and the chimney on the petticoat pipe, high-temperature region chimney in described petticoat pipe on the petticoat pipe of high-temperature region has the high-temperature flue gas connecting leg to be connected with the exhaust-heat boiler flue gas input pipe, the characteristics of this programme are to have the low-temperature flue gas connecting leg to be connected the exhaust-heat boiler flue gas input pipe on the low-temperature space chimney of the low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe simultaneously, and on the low-temperature space chimney of next low-temperature space petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe, the circulation smoke pipe connects at least two circulating flue gas inlet pipes, and described each circulating flue gas inlet pipe all is connected to the belt-cooling machine air compartment of high-temperature region petticoat pipe correspondence; In addition, high temperature output smoke valve is arranged on the high-temperature flue gas connecting leg, low temperature output smoke valve is arranged on the low-temperature flue gas connecting leg, on two circulating flue gas connecting legs, the circulating flue gas delivery valve is arranged, on each circulating flue gas inlet pipe the circulating flue gas transfer valve is arranged, described high temperature output smoke valve, low temperature output smoke valve, circulating flue gas delivery valve and circulating flue gas transfer valve be the output by wire connection controller separately all; In the low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe petticoat pipe temperature sensor is arranged in addition, on its low-temperature space chimney the stack temperature sensor is arranged, petticoat pipe temperature sensor and stack temperature sensor be the input by wire connection controller respectively.The concrete characteristics of this programme also have, and on described circulation smoke pipe circulating fan are arranged.What described high temperature output smoke valve, low temperature output smoke valve, circulating flue gas delivery valve and circulating flue gas transfer valve all adopted is automatically controlled butterfly valve.Described petticoat pipe temperature sensor is the low-temperature end at the low-temperature space petticoat pipe.What described petticoat pipe temperature sensor and stack temperature sensor all adopted is thermocouple.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because in this scheme, on the low-temperature space chimney of the low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe, there is the low-temperature flue gas connecting leg to connect the exhaust-heat boiler flue gas input pipe and is connected the circulation smoke pipe with the circulating flue gas connecting leg, and on the low-temperature space chimney of next low-temperature space petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe, the circulation smoke pipe connects the circulating flue gas inlet pipe, and the circulating flue gas inlet pipe all is connected to the belt-cooling machine air compartment of high-temperature region petticoat pipe correspondence.In addition, high temperature output smoke valve is arranged on the high-temperature flue gas connecting leg, low temperature output smoke valve is arranged on the low-temperature flue gas connecting leg, on two circulating flue gas connecting legs, the circulating flue gas delivery valve is arranged, the circulating flue gas transfer valve is arranged on the circulating flue gas inlet pipe, and described each valve is the output by wire connection controller separately all.In the low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe petticoat pipe temperature sensor is arranged, the stack temperature sensor is arranged on the low-temperature space chimney, two sensors is the input by wire connection controller respectively.This structure, owing on the low-temperature space chimney of the low-temperature space petticoat pipe adjacent, have the low-temperature flue gas connecting leg to be connected the exhaust-heat boiler flue gas input pipe with the high-temperature region petticoat pipe, on the low-temperature space chimney of next low-temperature space petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe, this has just increased the resource that air quantity is regulated and mated, utilize the temperature of petticoat pipe temperature sensor and stack temperature sensor measurement to control the aperture of each valve by controller again, reach adjusting and coupling control to flue gas, make the flue-gas temperature that enters the exhaust-heat boiler flue gas input pipe, be fit to waste heat boiler and produce the best demand of steam, this has not only utilized the low grade residual heat of low-temperature space flue gas, can reduce simultaneously the pollution that discharging causes, can obtain the steam parameter raising that high-temperature flue gas produces waste heat boiler again, the corresponding generated energy that also just improved.This shows that the utility model compared with prior art has substantive distinguishing features and progress, the beneficial effect of its enforcement also is conspicuous.
Description of drawings:
Fig. 1 is the structural representation of the utility model specific embodiment.
Among the figure, 1 is the circulating flue gas transfer valve, and 2 is air blast, 3 is air compartment, and 4 is belt-cooling machine, and 5 is the high-temperature region petticoat pipe, 6 is the high-temperature region chimney, and 7 is the exhaust-heat boiler flue gas input pipe, and 8 is the high-temperature flue gas connecting leg, 9 are high temperature output smoke valve, and 10 is the low-temperature flue gas connecting leg, and 11 are low temperature output smoke valve, 12 is the low-temperature space petticoat pipe, 13 is the circulating flue gas connecting leg, and 14 is the low-temperature space chimney, and 15 is the stack temperature sensor, 16 is the circulating flue gas delivery valve, 17 is the petticoat pipe temperature sensor, and 18 is the low-temperature space petticoat pipe, and 19 is the low-temperature space chimney, 20 are the circulation smoke pipe, 21 is circulating fan, and 22 is controller, and 23 is the circulating flue gas inlet pipe.
The specific embodiment:
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.
By accompanying drawing as can be seen, the control device of flue gas air quantity in the sintering waste heat generating of this programme, air compartment (3) and air blast (2) that belt-cooling machine (4) and belt-cooling machine (4) bottom are arranged, and the petticoat pipe on belt-cooling machine (4) top and the chimney on the petticoat pipe, high-temperature region chimney (6) in described petticoat pipe on the high-temperature region petticoat pipe (5) has high-temperature flue gas connecting leg (8) to be connected with exhaust-heat boiler flue gas input pipe (7), on the low-temperature space chimney (14) of the low-temperature space petticoat pipe (12) adjacent, there is low-temperature flue gas connecting leg (10) to be connected exhaust-heat boiler flue gas input pipe (7) with high-temperature region petticoat pipe (5), there is circulating flue gas connecting leg (13) to connect circulation smoke pipe (20) simultaneously, and on the low-temperature space chimney (19) of next low-temperature space petticoat pipe (18), there is circulating flue gas connecting leg (13) to connect circulation smoke pipe (20), circulating fan (21) is arranged on described circulation smoke pipe (20), circulation smoke pipe (20) behind circulating fan (21) connects at least two circulating flue gas inlet pipes (23), this specific embodiment is to adopt three circulating flue gas inlet pipes (23), and described each circulating flue gas inlet pipe (23) all is connected to the air compartment (3) of corresponding belt-cooling machine (4) below of high-temperature region petticoat pipe (5).In addition, high temperature output smoke valve (9) is arranged on high-temperature flue gas connecting leg (8), low temperature output smoke valve (11) is arranged on low-temperature flue gas connecting leg (10), on two circulating flue gas connecting legs (13), circulating flue gas delivery valve (16) is arranged, on each circulating flue gas inlet pipe (23), circulating flue gas transfer valve (1) is arranged, what described high temperature output smoke valve (9), low temperature output smoke valve (11), circulating flue gas delivery valve (13) and circulating flue gas transfer valve (1) all adopted is automatically controlled butterfly valve, and passes through the output of wire connection controller (22) separately.In the low-temperature space petticoat pipe (12) adjacent, petticoat pipe temperature sensor (17) is arranged in addition with high-temperature region petticoat pipe (5), on its low-temperature space chimney (14), stack temperature sensor (15) is arranged, what petticoat pipe temperature sensor (17) and stack temperature sensor (15) all adopted is thermocouple, and the input by wire connection controller (22) respectively, described controller (22) is the conventional controller that adopts, and described petticoat pipe temperature sensor (17) is the low-temperature end in low-temperature space petticoat pipe (12).
Claims (5)
1. the control device of flue gas air quantity in the sintering waste heat generating, include the air compartment and the air blast of belt-cooling machine and belt-cooling machine bottom, and the petticoat pipe on belt-cooling machine top and the chimney on the petticoat pipe, high-temperature region chimney in described petticoat pipe on the petticoat pipe of high-temperature region has the high-temperature flue gas connecting leg to be connected with the exhaust-heat boiler flue gas input pipe, it is characterized in that: on the low-temperature space chimney of the low-temperature space petticoat pipe adjacent, have the low-temperature flue gas connecting leg to be connected the exhaust-heat boiler flue gas input pipe with the high-temperature region petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe simultaneously, and on the low-temperature space chimney of next low-temperature space petticoat pipe, there is the circulating flue gas connecting leg to connect the circulation smoke pipe, the circulation smoke pipe connects at least two circulating flue gas inlet pipes, and described each circulating flue gas inlet pipe all is connected to the belt-cooling machine air compartment of high-temperature region petticoat pipe correspondence; In addition, high temperature output smoke valve is arranged on the high-temperature flue gas connecting leg, low temperature output smoke valve is arranged on the low-temperature flue gas connecting leg, on two circulating flue gas connecting legs, the circulating flue gas delivery valve is arranged, on each circulating flue gas inlet pipe the circulating flue gas transfer valve is arranged, described high temperature output smoke valve, low temperature output smoke valve, circulating flue gas delivery valve and circulating flue gas transfer valve be the output by wire connection controller separately all; In the low-temperature space petticoat pipe adjacent with the high-temperature region petticoat pipe petticoat pipe temperature sensor is arranged in addition, on its low-temperature space chimney the stack temperature sensor is arranged, petticoat pipe temperature sensor and stack temperature sensor be the input by wire connection controller respectively.
2. the control device of flue gas air quantity according to claim 1 is characterized in that: on described circulation smoke pipe circulating fan is arranged.
3. the control device of flue gas air quantity according to claim 1 and 2 is characterized in that: what described high temperature output smoke valve, low temperature output smoke valve, circulating flue gas delivery valve and circulating flue gas transfer valve all adopted is automatically controlled butterfly valve.
4. the control device of flue gas air quantity according to claim 1 is characterized in that: described petticoat pipe temperature sensor is the low-temperature end at the low-temperature space petticoat pipe.
5. the control device of flue gas air quantity according to claim 1 is characterized in that: what described petticoat pipe temperature sensor and stack temperature sensor all adopted is thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200250869U CN201072301Y (en) | 2007-07-13 | 2007-07-13 | Flue gas air quantity control device for power generation by sintered waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200250869U CN201072301Y (en) | 2007-07-13 | 2007-07-13 | Flue gas air quantity control device for power generation by sintered waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201072301Y true CN201072301Y (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200250869U Expired - Fee Related CN201072301Y (en) | 2007-07-13 | 2007-07-13 | Flue gas air quantity control device for power generation by sintered waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201072301Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865608A (en) * | 2010-03-19 | 2010-10-20 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101943524A (en) * | 2010-10-20 | 2011-01-12 | 成都四通新能源技术有限公司 | Control method and control system of flue gas heat energy cascade utilization system |
-
2007
- 2007-07-13 CN CNU2007200250869U patent/CN201072301Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865608A (en) * | 2010-03-19 | 2010-10-20 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101865608B (en) * | 2010-03-19 | 2012-05-30 | 湖南永清环保股份有限公司 | Sintering waste heat utilizing system with wide application range of load and control method thereof |
| CN101943524A (en) * | 2010-10-20 | 2011-01-12 | 成都四通新能源技术有限公司 | Control method and control system of flue gas heat energy cascade utilization system |
| CN101943524B (en) * | 2010-10-20 | 2012-09-05 | 成都昊特新能源技术有限公司 | Control method and control system of flue gas heat energy cascade utilization system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080611 Termination date: 20130713 |