Unlock instant, AI-driven research and patent intelligence for your innovation.

A power generation device and power generation method for comprehensive utilization of waste heat and waste energy

A technology for power generation and residual energy, applied in steam engine installations, energy industry, combined combustion mitigation, etc., can solve the problems of large land occupation, large investment, and high operation and maintenance costs

Active Publication Date: 2018-03-09
HUNAN ZHONGYE CHANGTIAN ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, a lot of waste heat is recovered, but setting up many scattered small waste heat back to power stations will bring two problems: one is that it occupies a lot of land, requires a large investment, and the operation and maintenance costs are high; on the other hand, part of the waste heat recovery Low thermal efficiency, poor system stability, high shutdown rate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A power generation device and power generation method for comprehensive utilization of waste heat and waste energy
  • A power generation device and power generation method for comprehensive utilization of waste heat and waste energy
  • A power generation device and power generation method for comprehensive utilization of waste heat and waste energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0202] like figure 1 As shown in , a power generation device for comprehensive utilization of waste heat and waste energy includes: generator 1, steam turbine 2 for driving generator 1, steel rolling heating furnace steam drum 3, steelmaking converter steam heat accumulator 4, sintering smoke exhaust pipe waste heat Boiler 5, annular cooler waste heat boiler 6 and saturated steam superheater 8 with saturated steam low-temperature superheater 806 and saturated steam high-temperature superheater 807, in which the high-parameter saturated steam output pipe L2 of steel rolling heating furnace drum 3, steelmaking converter The high-parameter saturated steam output pipe L3 of the regenerator 4 and the high-parameter saturated steam output pipe L4 of the sintered exhaust pipe waste heat boiler 5 are respectively connected to the saturated steam inlet 80601 of the saturated steam low-temperature superheater 806 in the saturated steam superheating boiler 8, The superheated steam outlet...

Embodiment 2

[0246] The waste heat and waste energy comprehensive utilization power generation device used in this embodiment is basically the same as that in Embodiment 1, only the design of the waste heat boiler 6 of the annular cooler is different, such as figure 2 shown in . The waste heat boiler 6 of the annular cooler additionally has an external superheating device 17 .

[0247] The power generation device for comprehensive utilization of waste heat and waste energy in Example 2 includes: generator 1, steam turbine 2 for driving generator 1, steel rolling heating furnace steam drum 3, steelmaking converter steam heat accumulator 4, sintering exhaust pipe waste heat boiler 5. The waste heat boiler 6 of the annular cooler, the external superheating device 17 installed near the waste heat boiler 6 of the annular cooler, and the saturated steam superheater 8 with a saturated steam low-temperature superheater 806 and a saturated steam high-temperature superheater 807, wherein: steel rol...

Embodiment 3

[0264] The waste heat and waste energy comprehensive utilization power generation device used in this embodiment is basically the same as that in Embodiment 1, only the design of the waste heat boiler 6 of the annular cooler is different, such as image 3 shown in . The annular cooler waste heat boiler 6 additionally has a built-in superheater 610 (in this case also referred to as annular cooler waste heat boiler 6a).

[0265]The power generation device for comprehensive utilization of waste heat and waste energy in Example 3 includes: generator 1, steam turbine 2 for driving generator 1, steel rolling heating furnace steam drum 3, steelmaking converter steam heat accumulator 4, sintering smoke exhaust pipe waste heat boiler 5. The annular cooler waste heat boiler 6a with a built-in high-parameter superheater 610 and the saturated steam superheater 8 with a saturated steam low-temperature superheater 806 and a saturated steam high-temperature superheater 807, wherein: the high...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a waste heat and complementary energy comprehensive utilization power generation device. The device comprises a generator (1), a turbine engine (2) for driving the generator (1), a steel rolling heating furnace steam pocket (3), a steelmaking converter steam accumulator (4), a sintering smoke vent waste heat boiler (5), an annular cooler waste heat boiler (6) and a saturated steam superheating boiler (8), wherein steam output pipelines of the steel rolling heating furnace steam pocket (3), the steelmaking converter steam accumulator (4), the sintering smoke vent waste heat boiler (5) and the annular cooler waste heat boiler (6) are respectively connected to a saturated steam inlet (80601) of a superheater of the saturated steam superheating boiler (8), and a superheated steam outlet (80702) of the saturated steam superheating boiler (8) is connected to a main steam inlet (201) of the turbine engine (2) by an superheated steam main pipeline (L1a). The waste heat use ratio is high, a system is flexible, the outage rate of a steam turbine generator unit is low, the occupied area is small, and the investment cost is low.

Description

technical field [0001] The invention relates to a waste heat power generation system, in particular to a power generation device and a power generation method for comprehensive utilization of waste heat and waste energy. Background technique [0002] Iron and steel enterprises are energy-intensive enterprises with huge energy consumption, accounting for about 16% of the country's total energy consumption. The energy utilization rate is 30% to 50%, and the energy consumption per ton of steel is about 20% higher than that of developed countries. In the process of iron and steel production, a large amount of gas, high-temperature flue gas, and steam are produced, and a large part of waste heat and energy can be recycled. [0003] At present, the gas recovered by most large iron and steel plants is mainly used as fuel for the self-production process of iron and steel plants such as coke ovens, hot blast stoves, and heating furnaces. The gas used in this part of the main process...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F01K11/02
CPCY02E20/14Y02P10/25Y02P80/15
Inventor 胡风华徐忠彭杰王佳明王磊
Owner HUNAN ZHONGYE CHANGTIAN ENERGY CONSERVATION & ENVIRONMENTAL PROTECTION TECH CO LTD