CN202229164U - Condensing type steam boiler energy-saving heating device - Google Patents
Condensing type steam boiler energy-saving heating device Download PDFInfo
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- CN202229164U CN202229164U CN2011202983625U CN201120298362U CN202229164U CN 202229164 U CN202229164 U CN 202229164U CN 2011202983625 U CN2011202983625 U CN 2011202983625U CN 201120298362 U CN201120298362 U CN 201120298362U CN 202229164 U CN202229164 U CN 202229164U
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Abstract
A condensing type steam boiler energy-saving heating device belongs to the field of heating devices and is composed of a boiler body, an energy saving device, a condenser, a combined type thermal insulation water tank and a programmable logic controller (PLC) control system. The combined type thermal insulation water tank is formed by a cold water side and a warm water side, and the condenser is respectively connected with the cold water side and the hot water side of the combined type thermal insulation water tank. The energy saving device is respectively connected with the hot water side of the combined type thermal insulation water tank and a drum. The PLC control system is simultaneously connected with a burner, the cold water side and the hot water side of the combined type thermal insulation water tank, a frequency conversion control water supplying system, a water replenishing solenoid valve, a circulating water pump and a boil tail oxygen content sensor. The condensing type steam boiler energy-saving heating device has the advantages of not only being capable of effectively obtaining low-temperature water of a steam boiler and 30-40% of latent heat of vaporization, but also further reducing electricity consumption of the system through application of the PLC control and frequency conversion technology, and having comprehensive energy-saving effect.
Description
Technical field
The utility model belongs to the heating equipment technical field.
Background technology
The a large amount of primary energy of urban heat supplying boiler consumption, the pollutant of amplification quantity side by side.The heating boiler of China is main with fire coal mainly traditionally.Along with the raising of urban life level,, use clean energy resource to become a kind of trend in order to improve urban air-quality.Traditional coal heating exhaust gas temperature is usually above 150 ℃, steam boiler even be higher than 200 ℃.Adopt after the natural gas, most of hot-water boiler exhaust gas temperatures are between 140～200 ℃.This has not only expended a large amount of energy, and has improved the operating cost of boiler.
With the natural gas is the boiler of fuel, and discharged flue gas contains about 15%～19% (the volume composition) of steam, is the main carrier of flue gas heat.Can know that according to the steam partial pressure coefficient water dew point is generally at 56～60 ℃ in the flue gas.We reclaim the sensible heat and the latent heat of flue gas simultaneously through reducing flue-gas temperature to dew point with refrigerant medium (like cold water, cold air etc.).For the steam boiler exhaust gas temperature is reduced to flue gas dew point once, just needing more, the water of low temperature cools off flue gas.General way is at the plain cylindrical furnace exhanst gas outlet energy-saving appliance to be installed; Through energy-saving appliance exhaust gas temperature is lowered, heating boiler feedwater simultaneously is because common steam boiler exhaust gas temperature is all about 230～250 ℃; Boiler feedwater through flue gas heating rises to 70～80 ℃ from room temperature (20 ℃); Steam in the flue gas has only seldom or condensation does not take place at this moment, and condenser boiler efficient improves very limited, and the efficient of boiler is lower than 96%.
Summary of the invention
The purpose of the utility model is not only the acquisition that more effectively solves the steam boiler water at low temperature; Obtain the latent heat of vaporization of flue gas about 30～40%; And the application through PLC control and frequency conversion control technique, further reduce the power consumption of system, make it have the synthesis energy saving effect.
The technical scheme of the utility model is:
The utility model is made up of boiler body, energy-saving appliance, condenser, combined thermal water tank and PLC control system; Wherein combined thermal water tank is made up of cold water side and hot water side; Condenser links to each other with hot water side with the cold water side of combined thermal water tank respectively; Energy-saving appliance links to each other with drum with the hot water side of combined thermal water tank respectively; Be provided with level sensor in the boiler and be connected to PLC control system, PLC control system also connects cold water side and hot water side, VFC water supply system, moisturizing magnetic valve, water circulating pump and the boiler tail oxygen level sensor of burner, combined thermal water tank simultaneously.
The beneficial effect of the utility model: this equipment has not only solved the acquisition of steam boiler water at low temperature effectively; Can obtain about 30～40% the latent heat of vaporization of flue gas; And the application through PLC control and frequency conversion control technique; Further reduced the power consumption of system, had comprehensive energy-saving effect, the efficient of calculating boiler according to low heat valve can reach 100%～104%.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
The specific embodiment
Working medium flow process of the utility model and flue gas flow explanation:
The working medium flow process:
1, the water circulating pump in the VFC water supply system 12 is from the hot water side 7 extracting high-temperature hot water of combined thermal water tank 6; After getting into finned tube and carry out heat exchange by energy-saving appliance 2 tops with the hot flue gas that comes out by convection bank; Flow out by energy-saving appliance 2 bottoms, carry out subsequently in the stove tube of boiler body 1.
2, the softened water tank of the utility model is a combined thermal water tank 6; Form by cold water side 8 and hot water side 7; Treated soft water covers cold water side 8, and the water circulating pump of condenser 3 extracts the water cooled condenser 3 of cold water side 8, and the water after the absorption heat gets into the hot water side 7 of combined thermal water tank 6; The water that can guarantee to supply with all the time condenser 3 like this is water at low temperature; After carrying out heat exchange with hot flue gas, come out to get back to the high temperature side 7 of combined thermal water tank 6, accomplished the heat exchange of tail flue gas condenser by condenser 3 front ends.In order to guarantee combined thermal water tank 6 water levels in the reasonable scope, be provided with level sensor 4 in the boiler, system 11 controls by PLC control.
Flue gas flow:
Fuel is lighted by the burner that is installed in the burner hearth front end 5; Fully the hot flue gas of burning back formation gets into energy-saving appliance 2 through the chamber of strile-bacing that is located at burner hearth bottom in burner hearth; And the spiral fin coil in energy-saving appliance 2 upwards flows; Turning back along the flue on energy-saving appliance 2 tops gets into condenser 3, and the spiral fin coils in the condenser 3 flow backward then, finally get into chimney and enter atmosphere.
Because boiler body 1 exit gas temperature is higher; Be about 250～290 ℃, flue gas gets into energy-saving appliance 2 and comes water to carry out heat exchange with hot water side 7 from combined thermal water tank 6, and the high-temperature water temperature that gets into energy-saving appliance 2 is 55～65 ℃; Energy-saving appliance 2 outlet water temperatures are about 85～100 ℃; Energy-saving appliance 2 outlet cigarette temperature are 150～170 ℃, and high-temperature flue gas and water are reverse flow in energy-saving appliance 2, thereby can obtain higher heat transfer temperature and pressure; Mean temperature difference is about 125～160 ℃, thereby can obtain higher heat exchange efficiency.
Claims (1)
1. condensing type steam boiler energy-saving heating equipment; Form by boiler body (1), energy-saving appliance (2), condenser (3), combined thermal water tank (6) and PLC control system (11); It is characterized in that: wherein combined thermal water tank (6) is made up of cold water side (8) and hot water side (7); Condenser (3) links to each other with hot water side (7) with the cold water side (8) of combined thermal water tank (6) respectively; Energy-saving appliance (2) links to each other with drum with the hot water side (7) of combined thermal water tank (6) respectively; Be provided with level sensor (4) in the boiler and be connected to PLC control system (11), PLC control system (11) also connects cold water side (8) and hot water side (7), VFC water supply system (12), moisturizing magnetic valve (9), water circulating pump (10) and the boiler tail oxygen level sensor of burner (5), combined thermal water tank (6) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202983625U CN202229164U (en) | 2011-08-17 | 2011-08-17 | Condensing type steam boiler energy-saving heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202983625U CN202229164U (en) | 2011-08-17 | 2011-08-17 | Condensing type steam boiler energy-saving heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229164U true CN202229164U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202983625U Withdrawn - After Issue CN202229164U (en) | 2011-08-17 | 2011-08-17 | Condensing type steam boiler energy-saving heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229164U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330966A (en) * | 2011-08-17 | 2012-01-25 | 安阳方快锅炉有限公司 | Energy-saving heat-supplying device of condensation steam boiler |
| CN102788427A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water pipe-type condensate hot-water boiler |
| CN102788342A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water tube type condensation superheated steam boiler |
| CN102788343A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water tube type condensation and saturation steam boiler |
| CN104791756A (en) * | 2015-04-21 | 2015-07-22 | 南京祥源动力供应有限公司 | Gas-fired boiler control system |
| CN111981456A (en) * | 2020-08-11 | 2020-11-24 | 浙江特富发展股份有限公司 | Circulating system for supplying water to cold and hot layered boiler and operating method thereof |
-
2011
- 2011-08-17 CN CN2011202983625U patent/CN202229164U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330966A (en) * | 2011-08-17 | 2012-01-25 | 安阳方快锅炉有限公司 | Energy-saving heat-supplying device of condensation steam boiler |
| CN102330966B (en) * | 2011-08-17 | 2013-07-17 | 安阳方快锅炉有限公司 | Energy-saving heat-supplying device of condensation steam boiler |
| CN102788427A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water pipe-type condensate hot-water boiler |
| CN102788342A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water tube type condensation superheated steam boiler |
| CN102788343A (en) * | 2012-08-06 | 2012-11-21 | 安阳方快锅炉有限公司 | Water tube type condensation and saturation steam boiler |
| CN104791756A (en) * | 2015-04-21 | 2015-07-22 | 南京祥源动力供应有限公司 | Gas-fired boiler control system |
| CN111981456A (en) * | 2020-08-11 | 2020-11-24 | 浙江特富发展股份有限公司 | Circulating system for supplying water to cold and hot layered boiler and operating method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20130717 |
|
| RGAV | Abandon patent right to avoid regrant |