Oilfield directly-heated type direct current frequency conversion air source heat pump unit control system and implementation method thereof

Abstract

The invention discloses an oilfield directly-heated type direct current frequency conversion air source heat pump unit control system which comprises a controller and a variable-frequency driving plate, wherein the controller is connected with the variable-frequency driving plate through a 485 communication port; the variable-frequency driving plate is connected with a compressor through wiring; the controller is connected with a temperature sensor and controls the temperature sensor to detect all temperature points so as to control action of all output points; and the controller and the variable-frequency driving plate communicate with each other through the 485 communication port to receive data and transmit a command. The control system has the following advantages: the direct current frequency conversion technology enables equipment to realize stepless regulation within a large range, so that an oilfield single well oil outlet pipeline is ensured to maintain stable oil outlet temperature after passing through an oilfield directly-heated type direct current frequency conversion air source heat pump unit, oil does not reach the freezing point during the pipeline transmission process, the comprehensive energy efficiency of unit operation is improved, frequent start-stop of the unit is reduced to prolong the service life of the unit, and the oilfield directly-heated type directcurrent frequency conversion air source heat pump unit maintains stable operation.

Description

technical field [0001] The invention relates to a control system of an oilfield direct-heating type DC frequency conversion air source heat pump unit and a realization method thereof, belonging to the field of heat pump heating. Background technique [0002] With the development of society and the advancement of science and technology, the demand for heat energy continues to increase, but most of the heat energy is formed by combustion. Air pollution is an inevitable product of human social activities and has become an inevitable reality in human life. Energy saving Environmental protection has become a key issue for the sustainable development of the future society, and the comprehensive development and utilization of renewable energy has become a key direction of energy development and utilization. Now there are various new sources of electric energy, including solar power, wind power, hydropower, tidal power, nuclear power, etc. Therefore, coal-to-electricity has become a...

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Problems solved by technology

[0003] With the increasing demand for coal-to-electricity conversion, my country's Daqing Oilfield, Shengli Oilfield, Songyuan Oilfield, Huabei Oilfield and other oilfields have a large demand for single-well online heating devices. The current modification method is direct heating by electric heating equipment or high temperature by air source heat pumps. The hot water is used for secondary heat exchange, although it solves the urgent need, but the power consumption is not small, and the energy utilization rate is not high

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