Open-type screw set
A screw unit, open technology, applied in the direction of mechanical equipment, machine/engine, liquid fuel engine, etc., can solve the problems of oil pump damage, unit must be shut down for repair, etc., and achieve the effect of improving work efficiency
Active Publication Date: 2014-05-14
GREE ELECTRIC APPLIANCES INC
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] The purpose of the present invention is to provide an open screw unit to solve the technical problem that the unit must be shut down for repair if the oil pump is damaged
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
[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0028] see Figure 1 to Figure 3 According to the open-type screw unit of the present invention, two oil pumps 10 are connected in parallel to form two oil pump branches, the first ends of the two oil pump branches are connected to the inlet of the oil separator 70 and communicate with the compressor 60, the second The two ends are connected to the coarse oil filter 20 and communicate with the oil cooler 120; the control valve is connected to the two oil pump branches, and selectively makes one of the two oil pump branches cut off; the first oil coarse filter 20 One end communicates with the oil outlet of the oil separator 70, the second end of the oil coarse filter 20 communicates with the second end of the oil cooler 120 and the oil pump 10; the o...
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 provides an open-type screw set. The open-type screw set comprises two oil pumps, the two oil pumps are connected in parallel to form two oil pump sub-lines, first ends of the two oil pump sub-lines are connected to an inlet of an oil separator and are communicated with a compressor, and second ends of the two oil pump sub-lines are connected to an oil coarse filter and are communicated with an oil cooler. The open-type screw set also comprises control valves, the control valves are connected to the two oil pump sub-lines and are used for selectively blocking one of the oil pump sub-lines. The open-type screw set also comprises the oil coarse filter, a first end of the oil coarse filter is communicated with an oil outlet of the oil separator, and a second end of the oil coarse filter is communicated with the oil cooler and the second ends of the oil pumps. The open-type screw set also comprises an oil fine filter, a first end of the oil fine filter is communicated with the oil coarse filter or the oil cooler, and a second end of the oil fine filter is communicated with the compressor. The open-type screw set also comprises the compressor communicated with an air inlet of the oil separator. The two oil pumps comprises the used one and the spare one connected in parallel and are respectively arranged in the different oil pump sub-lines, and when the oil pump is damaged or maintained, the stop valves in front of and behind the damaged oil pump are blocked and then the damaged oil pump is replaced or maintained so that set operation is not influenced and work efficiency is improved.
Description
technical field [0001] The invention relates to the field of air conditioning, in particular to an open screw unit. Background technique [0002] Screw refrigeration compressors are favored by users due to their large cooling capacity and high refrigeration performance coefficient. Most of the large screw refrigeration compressors of this product use an external oil circulation system to ensure the lubrication of the bearing parts of the screw refrigeration compressor, the sealing of the compression chamber and the normal operation of the air conditioning system. Improper oil circuit design will cause wear and damage to the compressor. The design of the circulating oil circuit directly affects the reliability of the unit. [0003] In the existing design, the oil supply scheme generally used for the screw refrigeration compressor has the following defects: [0004] ① Due to the short working life of the oil pump oil seal, if it is not replaced on schedule, it will cause lea...
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 Applications(China)
IPC IPC(8): F04C29/02
Inventor 李儒滨齐方成苗志强成浩马宁芳霍美琳安亚洲肖福佳熊凯顾裕林刘加春练浩民
Owner GREE ELECTRIC APPLIANCES INC