CN203083001U - Low-grade steam heating and using system of waste heat boiler - Google Patents

Low-grade steam heating and using system of waste heat boiler Download PDF

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Publication number
CN203083001U
CN203083001U CN 201220711215 CN201220711215U CN203083001U CN 203083001 U CN203083001 U CN 203083001U CN 201220711215 CN201220711215 CN 201220711215 CN 201220711215 U CN201220711215 U CN 201220711215U CN 203083001 U CN203083001 U CN 203083001U
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steam
water
heating
low
heat
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CN 201220711215
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Chinese (zh)
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翟文恒
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Middle Energy-Saving Industrial Power Conservation Ltd
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Middle Energy-Saving Industrial Power Conservation Ltd
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Abstract

The utility model provides a low-grade steam heating and using system of a waste heat boiler. The system comprises kiln tail heat recovery boiler SP, a turbine, an intelligent heat exchanger and a condenser. The system is characterized in that the intelligent heat exchanger is arranged between a kiln tail heat recovery boiler II section steam pipeline and a last-stage steam inlet of the turbine, and a steam inlet of the intelligent heat exchanger is communicated with a kiln tail II section steam outlet pipeline. Low-grade hot steam exhausted from a kiln tail is absorbed to heat water of a heating system, and the aims of energy saving and emission reduction are achieved. The water used for heating is heated after the steam enters the tube-type heat exchanger from the pipelines, hot water after being heated is sent to users for heating through a conveying water pump, and water condensed from the steam flows back to the condenser due to communication of the pipelines and the condenser and enters a condensed water system for recycling. A traditional heating system is improved, the low-grade steam is in full use, and the problems that a traditional small heat collecting boiler is low in heat utilization rate, wastes resources, exhausts smoke and pollutes environment are effectively solved.

Description

The low-grade steam heating of waste heat boiler utilizes system
Technical field
The utility model belongs to field of energy-saving technology, relates to industrial afterheat recovery and utilizes technology, and the low-grade steam waste heat of boiler of power generation by waste heat that is specifically related to cement producing line utilizes system.
Background technology
Development and application heat recovery technology is the important behave of industrial production energy-saving and emission-reduction.Especially in the industry of this typical highly energy-consuming of manufacture of cement, high pollution, how the heat recovery technology of development and application cement producing line becomes technical research and hot of research and development.
The high-temperature flue gas recovery and utilization technology that is rich in the high-grade waste heat of discharging about the kiln head and tail of cement kiln in the prior art is comparative maturity, but also exists certain value to get improved place about cement kiln tail low temperature low grade residual heat recovery and utilization technology.For example, the prior art of cement residual neat recovering system commonly used mainly is to condense into water by the steam turbine last stage acting to reclaim again.Its system mainly be low-grade steam by jet chimney to the steam turbine last stage admission, the pushing turbine acting, condensing into water through the condenser condenser pipe and enter condensate system by condensate pump, is limited but pressure 0.2MPa, temperature are steam acting about 160 ℃.The urban heat supplying system is not incorporated in many cement plants, the north into, and can only use according to situation separately and provide the arcola heating for oneself winter, and the arcola thermal losses is big, automaticity is low, serious to atmosphere pollution, runs counter to the requirement of energy-saving and emission-reduction.
In sum, it is provided by the utility model that to utilize the low-grade steam of cement kiln residual heat generating project be emerging energy-saving and emission-reduction key project, and enough quantity of steams are arranged, can improve effectively that traditional arcola that existing heating system using wastes energy, the situation of contaminated environment.
The utility model content
The utility model provides the low-grade steam heating of a kind of waste heat boiler to utilize system, improved traditional heating system, solved that traditional heating system wastes energy, the persistent ailment of contaminated environment, its objective is the problem that has made full use of the low-grade steam of kiln tail and solved plant area's heating, realize energy-saving and emission-reduction.
To achieve these goals, the utility model has adopted following technical scheme, the low-grade steam heating of a kind of waste heat boiler utilizes system, comprise kiln tail waste heat boiler SP, steam turbine, intelligent heat-exchange device, condenser, it is characterized in that, an intelligent heat-exchange device is set between kiln tail waste heat boiler II section jet chimney and steam turbine last stage admission, intelligent heat-exchange device air intake is connected with kiln tail II section steam venthole pipeline, absorb the low-grade hot vapour that the kiln tail is discharged, heat for heating system water, realize the purpose of energy-saving and emission-reduction.
The cover self-checking device that described intelligent heat-exchange device is made up of water tank, pipe heat exchanger, conveying water pump, small pump, power supply circuits.Steam heats the water that heats after entering pipe heat exchanger by pipeline, hot water through heating heats toward the user through the transporting water pumping, the water that steam condenses is connected with condenser through piping, be back to condenser, enter condensate system and carry out recycling, the water of heating has the part loss, through the small pump moisturizing that automatically adjusts, thereby becomes the self-regulating heating system of a cover.
Further, described pipe heat exchanger steam inlet up, with the connector of condenser below, guarantee hydrophobicly can enter condenser smoothly and water not in the heat exchanger.The cold water of heating system flows into from the water inlet of pipe heat exchanger below, flows out hot water through the delivery port from the heat exchanger top after the Steam Heating of heat exchange stainless steel pipes, guarantees effective contact heat-exchanging.
The low-grade steam heating of the waste heat boiler that the utility model provides utilizes system, made full use of the low grade residual heat of the steam of pressure 0.2MPa, temperature that kiln tail waste heat boiler II section discharges about 160 ℃, water to plant area's heating system heats effectively, solve low, the with serious pollution problem of the thermal efficiency of waste heat waste and little heating boiler, reached the effects of energy saving and emission reduction that waste heat recovery utilizes again.
Description of drawings
Fig. 1 is that the low-grade steam heating of waste heat boiler utilizes system schematic.
Identifier declaration:
1-kiln tail waste heat boiler SP; The 2-steam turbine; The 3-condenser; 4-intelligent heat-exchange device;
The 5-generator; The 6-heating system.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is done further detailed, clear, complete explanation, meet novelty, creativeness and the practicality that Patent Law requires fully with explanation the utility model.What should be noted that embodiment describes is a part of embodiment of the present utility model, can not be used to limit protection domain of the present utility model.
Embodiment 1
The low-grade steam heating of a kind of waste heat boiler utilizes system, comprise kiln tail waste heat boiler SP1, steam turbine 2, intelligent heat-exchange device 4, condenser 3, it is characterized in that, between the final stage admission of the II of kiln tail waste heat boiler SP1 section jet chimney and steam turbine 2, get vapour through an intelligent heat-exchange device 4, intelligent heat-exchange device 4 air intakes are connected with kiln tail II section steam venthole pipeline, the low-grade hot vapour that absorbs the discharge of kiln tail heats for heating system water, realizes the purpose of energy-saving and emission-reduction.
The cover self-checking device that described intelligent heat-exchange device 4 is made up of water tank, pipe heat exchanger, conveying water pump, small pump, power supply circuits.Steam heats the water that heats after entering pipe heat exchanger by pipeline, hot water through heating heats toward the user through the transporting water pumping, the water that steam condenses is connected with condenser through piping, be back to condenser, enter condensate system and carry out recycling, the water of heating has the part loss, through the small pump moisturizing that automatically adjusts, thereby becomes the self-regulating heating system of a cover.
Described intelligent heat-exchange device 4 skins are body structure, and the casing skin is wrapped up by heat-barrier material, play insulation effect.Hot duct is set to a plurality of circuitous heat exchange pipelines that are arranged in parallel that bend at box house, and pipeline adopts the high material of thermal conductivity.Described pipe heat exchanger steam inlet up, with the connector of condenser below, guarantee hydrophobicly can enter condenser smoothly and water not in the heat exchanger.The cold water of heating system flows into from the water inlet of pipe heat exchanger below, flows out hot water through the delivery port from the heat exchanger top after the Steam Heating of heat exchange stainless steel pipes, guarantees effective contact heat-exchanging.

Claims (5)

1. the low-grade steam heating of waste heat boiler utilizes system, comprise kiln tail waste heat boiler SP, steam turbine, intelligent heat-exchange device, condenser, it is characterized in that, an intelligent heat-exchange device is set between kiln tail waste heat boiler II section jet chimney and steam turbine last stage admission, intelligent heat-exchange device air intake is connected with kiln tail II section steam venthole pipeline, absorb the low-grade hot vapour that the kiln tail is discharged, heat for heating system water.
2. the low-grade steam heating of waste heat boiler according to claim 1 utilizes system, it is characterized in that, the intelligent heat-exchange device is made up of water tank, pipe heat exchanger, conveying water pump, small pump, power supply circuits, the skin of intelligent heat-exchange device is a body structure, and hot duct is set to a plurality of circuitous heat exchange pipelines that are arranged in parallel that bend at box house.
3. the low-grade steam heating of waste heat boiler according to claim 2 utilizes system, it is characterized in that, steam heats the water that heats after entering pipe heat exchanger by pipeline, hot water through heating heats toward the user through the transporting water pumping, the water that steam condenses is connected with condenser through piping, be back to condenser, enter condensate system and carry out recycling.
4. the low-grade steam heating of waste heat boiler according to claim 3 utilizes system, it is characterized in that, the pipe heat exchanger steam inlet up, with the connector of condenser below pipe heat exchanger.
5. the low-grade steam heating of waste heat boiler according to claim 3 utilizes system, it is characterized in that, the cold water of heating system flows into from the water inlet of pipe heat exchanger below, through after the Steam Heating of heat exchange pipeline, from the delivery port outflow of heat exchanger top.
CN 201220711215 2012-12-21 2012-12-21 Low-grade steam heating and using system of waste heat boiler Active CN203083001U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220711215 CN203083001U (en) 2012-12-21 2012-12-21 Low-grade steam heating and using system of waste heat boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220711215 CN203083001U (en) 2012-12-21 2012-12-21 Low-grade steam heating and using system of waste heat boiler

Publications (1)

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CN203083001U true CN203083001U (en) 2013-07-24

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CN 201220711215 Active CN203083001U (en) 2012-12-21 2012-12-21 Low-grade steam heating and using system of waste heat boiler

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453662A (en) * 2013-08-27 2013-12-18 洛阳双瑞精铸钛业有限公司 Domestic water heater
CN108019736A (en) * 2017-11-23 2018-05-11 宁波杭州湾新区祥源动力供应有限公司 One kind is used for steam power plant's steam heat recovery system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103453662A (en) * 2013-08-27 2013-12-18 洛阳双瑞精铸钛业有限公司 Domestic water heater
CN108019736A (en) * 2017-11-23 2018-05-11 宁波杭州湾新区祥源动力供应有限公司 One kind is used for steam power plant's steam heat recovery system

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