Air-cooled heat pump system using single-unit two-stage hybrid screw compressor
A screw compressor, air-cooled heat pump technology, applied in compressors, components of pumping devices for elastic fluids, non-variable-capacity pumps, etc., can solve complex problems, delay oil supply, and avoid oil compression. , Reasonable design effect
Active Publication Date: 2021-11-02
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Taking into account the different characteristics and needs of the two, but if two completely independent oil circuit systems and oil cooling systems are used, it must be too complicated
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0016] An air-cooled heat pump system using a single-unit two-stage hybrid screw compressor 101, including the compressor 101:
[0017] Such as figure 1 As shown, the compressor 101 is provided with a suction pipeline 224 and an air return pipeline, and a first circuit is provided in it, and the first circuit is used for lubricating oil return, oil supply circuit, oil cooling, centrifugal side and screw side supply. Oil and oil supply during startup and shutdown, the first circuit includes oil separator 102, centrifugal oil channel oil tank 107, oil cooler 104, screw side oil supply main pipe 209 and centrifugal side oil supply main pipe 210, the bottom of oil separator 102 is provided with Oil supply main pipe 202, oil supply main pipe 202 is divided into oil supply branch pipe 1 203 and oil supply branch pipe 2 204 two circuits, oil supply branch pipe 1 20...
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
Login to View More Abstract
The invention discloses an air-cooled heat pump system using a single-machine two-stage hybrid screw compressor, which can uniformly supply oil and cool oil to the internal screw rotor shaft system and the impeller rotor shaft system in the hybrid screw compressor. Its technical scheme The main point is that the compressor is equipped with a suction line and a return line. In the first circuit, an oil supply main pipe is installed at the bottom of the oil separator. The oil supply main pipe is divided into oil supply branch one and oil supply branch two. Two circuits, the oil supply branch pipe 1 is equipped with an oil circuit check valve, the oil supply branch pipe 2 is connected with the centrifugal oil circuit oil tank, the centrifugal oil circuit oil tank is equipped with a submerged gear oil pump, and the gear oil pump is provided with a communication valve. The oil pump outlet pipe of the oil pump, the oil pump outlet pipe is connected with the oil supply branch pipe, and its connecting end is connected with the oil cooler. The oil cooler is equipped with a temperature-controlled three-way valve, and the temperature-controlled three-way valve is connected with an oil filter. One end of the oil filter communicates with the oil supply main pipe on the screw side, and the other end communicates with the oil supply main pipe on the centrifugal side.
Description
technical field [0001] The invention relates to the technical field of screw compressors, more specifically, it relates to an air-cooled heat pump system using a single-unit two-stage hybrid screw compressor. Background technique [0002] The screw compressor has a high operating pressure head, a large tolerance margin for wet compression, and a wide operating range. When it is suitable for a variety of refrigerant applications, it can adapt to the thermophysical properties and compression characteristics of different refrigerants through minor changes to achieve better performance. High operating efficiency and other characteristics, so it is widely used in refrigeration units and air-cooled heat pump units. [0003] Based on the needs of different lubricating oil supply systems and oil cooling systems for the screw rotor shafting and impeller rotor shafting in the screw compressor, the oil supply system and oil cooling system of the single-unit two-stage hybrid screw compr...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F25B31/00F04D29/063
CPCF04D29/063F25B31/004
Inventor 商萍君陈利军陈武周惠颖
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST