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Heat pump and plate type heat exchanger hybrid lithium bromide heat pump heating method for power plant combined heat and power generation

A technology of cogeneration and lithium bromide, which is applied to machines using waste heat, hot water central heating systems, solar collectors in specific environments, etc., can solve problems such as abandonment, and achieve the effect of saving water resources and reducing energy loss

Inactive Publication Date: 2020-06-30
DALIAN NATIONALITIES UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low-temperature industrial waste heat represented by the float glass factory is currently being discarded for nothing, or it is discharged using additional hydropower resources. It is a pity to discard it.

Method used

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  • Heat pump and plate type heat exchanger hybrid lithium bromide heat pump heating method for power plant combined heat and power generation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A heating system integrating multiple waste heat couplings, including a float glass waste heat recovery device, a solar waste heat recovery device and a lithium bromide heat pump heating device.

[0011] The float glass waste heat recovery device includes a float glass workshop (1), a hot pool (22), a cold pool (21), a second circulation pump (17), a third circulation pump (18) and two-stage control valves, The cooling tower (6), the heat pump, the first water outlet of the float glass workshop (1) is led into the heat pool (22) by the first water pipe, the inlet of the cooling tower (6) is connected to the upper water pipe, and the outlet of the cooling tower (6) The pipeline leads to the cold pool (21), the upper water pipe is equipped with a two-stage control valve and a circulating pump, the upper water pipe leads to the hot pool (22), and the circulating pump is arranged between the hot pool (22) of the upper water pipe and the two-stage control valve At the positi...

Embodiment 2

[0046] A power plant waste heat, solar energy, and float glass waste heat coupling heating system. The whole system is composed of a float glass waste heat recovery device, a solar waste heat recovery device, and a lithium bromide heat pump heating device.

[0047] The main working principle of the float glass waste heat recovery device is: when the waste heat recovery is carried out in winter, the 37-39 ℃ circulating water containing a large amount of low-temperature waste heat generated by the float glass workshop 1 is discharged into the heat pool 22, and the third circulating pump 18. Pressurize the second circulation pump 17, open the eighth control valve 12, the ninth control valve 13, the tenth control valve 14, the eleventh control valve 15, and close the third control valve 7 and the fourth control valve 8 , the fifth control valve 9, the sixth control valve 10; these circulating water are introduced into the first heat pump 23, the second heat pump 24, and the third h...

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Abstract

The invention discloses a heat pump and plate type heat exchanger hybrid lithium bromide heat pump heating method for power plant combined heat and power generation, which belongs to the field of heatsupply waste heat recovery and heat distribution, and aims to achieve that heat quality is improved stage by stage for a combined heat and power generation device to form high-temperature water suitable for heat exchange, energy is utilized in a stepped mode, and energy loss is greatly reduced. Primary heat exchange water at a temperature of about 30 DEG C is output for a condenser end of a steamheat pump unit, the primary heat exchange water enters a medium-temperature heat source in a first lithium bromide heat pump unit as inlet water; a high-temperature heat exchange water tube exchangesheat with a low-temperature heat exchange water tube, and is connected to a second output pipeline for supplying second output water (55 DEG C); an evaporator exchanges heat with a condenser; and anoutlet of a medium-temperature heat source in a second lithium bromide heat pump unit communicates with an inlet of a medium-temperature heat source in a third lithium bromide heat pump unit.

Description

technical field [0001] The invention belongs to the field of heating waste heat recovery and heat distribution, and relates to a lithium bromide heat pump heating method in which a heat pump for combined heat and power generation of a power plant is mixed with a plate heat exchanger. Background technique [0002] In recent years, with the increase of urban heating area in my country and the increase of production line construction in industrial plants, the heat consumption in my country has increased rapidly. From the analysis of heating methods, there are currently the following ways for residents to heat in my country: thermoelectricity Combined production mode, central heating of small and medium-sized regional boiler rooms, small domestic gas water heaters, household coal-fired furnaces, etc., among which the combined heat and power mode is a combination of using the high-grade thermal energy of the fuel to generate electricity and then using its low-grade thermal energy f...

Claims

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Application Information

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IPC IPC(8): F24D3/18F24D3/10F25B15/06F25B27/02F24S20/40
CPCF24D3/18F24D3/10F25B15/06F25B27/02F24D2200/32F24D2220/10Y02A30/274Y02B30/625
Inventor 汪语哲李绍民张皓天李佳乐杨正凯
Owner DALIAN NATIONALITIES UNIVERSITY
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