Boiler compression heat pump and absorption heat pump under step driving of power generator

Abstract

The invention provides a boiler compression heat pump and an absorption heat pump under the step driving of a power generator. According to the boiler compression heat pump and the absorption heat pump under the step driving of the power generator, the power generator, a smoke boiler, the compression heat pump and the absorption heat pump are integrated to form a system. The power generator is used for outputting high-grade electric energy so that the compression heat pump can be driven, and power transmission loss is avoided. An engine is utilized in a stepped mode to discharge low-grade smoke, and the heat energy of the smoke is used for driving the smoke boiler. Cooling heat energy of a cylinder sleeve is used for driving the absorption heat pump. Stepped heating and refrigerating in spring and autumn, overlap-type heating in winter, and parallel refrigerating in summer can be achieved through switching; the pay back period can be shortened by 50%; and the comprehensive energy utilization rate can be doubled and reaches 180%, and the effect that the heat value of one part of fuel can generate 6 parts of useful heat energy and cold energy is achieved to the maximum extent.

Description

(1) Technical field [0001] The invention relates to a generator cascade-driven boiler compression heat pump absorption heat pump. (2) Background technology [0002] Oil extraction needs to go through cyclic steps such as water injection, dissolution, dehydration, and cooling, and each step consumes a lot of energy. There are a total of 22,000 various heating furnaces in major oilfields of PetroChina. Therefore, the reutilization of heat energy by electric compression heat pumps or absorption heat pumps to completely replace heating furnaces is of great significance to energy conservation and emission reduction in oilfields. However, this technology is difficult to promote because of: [0003] (1) The oil field joint station is located in a remote area, and large-scale deployment of electric compression heat pumps lacks the capacity support and transmission and distribution support of the power system, requiring additional investment in transmission and distribution networks...

AI Technical Summary

Problems solved by technology

However, this technology is difficult to promote because of:

[0003] (1) The oil field joint station is located in a remote area, and large-scale deployment of electric compression heat pumps lacks the capacity support and transmission and distribution support of the power system, requiring additional investment in transmission and distribution networks;

[0004] (2) If the associated gas directly drives the absorption heat pump, the high-temperature heat energy at 1000°C is not fully used to produce high-grade electrical energy or mechanical energy, which greatly reduces the comprehensive energy utilization rate;

[0005] (3) Distributed energy systems provide energy for areas where centralized power stations are not suitable and for end users of transmission and distribution networks, effectively reducing transmission losses and investment in transmission systems for electricity, heat, and cold, and providing users with high-quality, high-reliability Clean energy services; however, when the cooling capacity is only provided by the absorption heat pump, not only the minimum water supply temperature is limited to above 7°C, but also the circulating temperature difference of the cooling carrier is also limited to within 5°C, which makes the cooling pipeline thicker, And the power consumption of the cold circulation pump is relatively large;

[0006] (4) When the gas-fired boiler directly heats low-pressure steam, circulating high-temperature hot water or circulating heat-conducting oil, due to the excessive heat transfer temperature difference between the 1000°C gas heat energy and the heated medium, the high-temperature heat energy of the gas is not effectively utilized, thus making the comprehensive low energy efficiency

[0007] Therefore, in areas where the capacity support and transmission and distribution support of the power system cannot be satisfied, and in the working conditions where the gas boiler directly heats the low-temperature heat carrier, how to further improve the comprehensive energy utilization rate of the electric heating and cold trigeneration of the distributed energy system and make full use of it It is a technical problem to be solved to heat the low-temperature heat carrier with the waste heat of the flue gas, reduce the investment in the cooling pipeline, and reduce the power consumption of the cooling circulation pump.

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