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Hybrid drive waste heat utilization double-heat-pump system and control method

A hybrid power and control method technology, applied in heat pumps, refrigerators, refrigeration components, etc., can solve problems such as low utilization rate of waste heat, empty exhaust, and reduced heating demand, so as to improve energy utilization rate, increase utilization rate, The effect of achieving seasonal balance

Inactive Publication Date: 2017-12-01
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the reduction of heating demand in summer, it often leads to low waste heat utilization rate and even the occurrence of "empty discharge" phenomenon.

Method used

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  • Hybrid drive waste heat utilization double-heat-pump system and control method

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Embodiment Construction

[0027] The following specific embodiments will further clarify the present invention. It should be understood that the following specific embodiments are only used to illustrate the present invention and not to limit the scope of the present invention.

[0028] See figure 1 As shown, this embodiment provides a dual heat pump system using hybrid power to drive waste heat. Including: hybrid driven gas heat pump system, waste heat recovery water circulation system, absorption heat pump system;

[0029] The hybrid-driven gas heat pump system includes a gas engine 1, a motor 2, a continuously variable transmission device 3, a power coupler 4, an inverter 5, a lithium iron phosphate battery pack 6, a compressor 7, a four-way valve 8, and outdoor Unit 9, first throttle valve 10, indoor unit 11;

[0030] The waste heat recovery water circulation system includes an electric heater 12, a liner heat exchanger 13, a tail gas waste heat recovery device 14, a first circulating water pump P1, a s...

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Abstract

The invention provides a hybrid drive waste heat utilization double-heat-pump system and a control method. The system comprises a hybrid drive gas heat pump system, a waste heat recycling water circulating system and an absorption type heat pump system. The hybrid power drive gas heat pump system comprises a gas engine, a motor, a stepless speed change device, a power coupling, an inverter, a lithium iron phosphate battery pack, a compressor, a four-way valve, the compressor and engagement and disengagement devices. By the adoption of the gas engine, in cooperation with the motor, after the power coupling stepless speed change, the compressor is driven to work, and the refrigeration / heating circulation of the heat pump system is achieved. After being recycled, low-grade high-temperature waste heat of an engine cylinder sleeve and exhaust is used as a power input source of the absorption type heat pump generator end, and separated supply of hot water and low-temperature water is achieved. By the adoption of the hybrid drive waste heat utilization double-heat-pump system and the control method, it can be guaranteed that the engine operates economically under different loads and the waste heat of the gas heat pump system is fully utilized, and the problem of the low waste heat utilization rate in summer is solved.

Description

Technical field: [0001] The invention relates to a dual heat pump system and a control method for hybrid power driving waste heat utilization, and belongs to the technical field of energy-saving heat pump system design. Background technique: [0002] Natural gas energy has gradually become the best choice for countries around the world to improve the environment and promote sustainable economic development due to its clean and efficient characteristics. At the same time, the energy consumption of heating and air-conditioning promotes the continuous increase of electricity consumption, causing frequent peak loads of electricity consumption, endangering the safety of grid operation, and also leading to an increase in fuel emissions. Gas-fired heat pumps use natural gas as fuel and use gas engines to drive compression heat pump system operation, which can effectively reduce power peaks, reduce emissions, and balance the seasonal peaks and valleys of natural gas consumption. However...

Claims

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Application Information

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IPC IPC(8): F25B30/04F25B30/06F25B27/00F25B49/00
CPCF25B30/04F25B27/00F25B30/06F25B49/00F25B2327/001
Inventor 蔡亮陈涛马晓凡张小松
Owner SOUTHEAST UNIV
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