Oil injection structure of screw compressor
A screw compressor, compressor technology, applied in mechanical equipment, machines/engines, liquid fuel engines, etc., can solve problems such as the inability to adjust the fuel injection amount, and achieve the best performance.
Active Publication Date: 2017-03-29
WUXI COMPRESSOR CO LTD
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Problems solved by technology
[0003] In view of the above problems, the present invention provides the oil injection structure of the screw compressor, which can solve the problem that the oil injection structure of the traditional screw compressor cannot adjust the oil injection quantity
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Embodiment Construction
[0015] See figure 2 , In the oil injection structure of the screw compressor of the present invention, the lower part of the main body shell is provided with an oil supply channel 1 and an oil injection hole 2 that communicate with each other. The oil supply channel 1 is also communicated with the bearing lubricating oil channel 3. A stepped joint 4 is provided between the fuel injection holes 2, and a detachable and replaceable fuel injection nozzle 5 is installed in the oil supply channel 1 and the fuel injection hole 2. The fuel injection nozzle 5 includes a head 5-1 and a tail 5- 2, see image 3 , the tail part 5-2 of the fuel injection nozzle 5 is installed in the oil supply channel 1 and the head part 5-1 of the fuel injection nozzle 5 extends into the fuel injection hole 2. The tail part 5-2 of the fuel injection nozzle 5 is also provided with The oil distribution hole 5-3 is in communication with the bearing lubricating oil channel 3 .
[0016] Clear fit between the...
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The invention provides an oil injection structure of a helical-lobe compressor, aiming at solving the problem that in the traditional helical-lobe compressor, oil injection amount can not be regulated. The oil injection structure is configured as follows: an oil supply channel and an oil injection hole which are communicated with each other are formed at the lower part of a shell of the main body of the compressor, the oil supply channel is communicated with a bearing lubrication oil channel, and a step connection part is arranged between the oil supply channel and the oil injection hole. The oil injection structure is characterized in that an oil injection nozzle capable of being detached for replacement is mounted in the oil supply channel and the oil injection hole, the oil injection nozzle comprises a head part and a tail part, the tail part of the oil injection nozzle is mounted in the oil supply channel, the head part of the oil injection nozzle extends into the oil injection hole, an oil distributing hole is further formed at the tail part of the oil injection nozzle, and the oil distributing hole is communicated with the bearing lubrication oil channel.
Description
technical field [0001] The invention relates to the field of screw compressors, in particular to an oil injection structure of a screw compressor. Background technique [0002] In oil-injected screw compressors, lubricating oil with a certain pressure is often injected into the working chamber. The oil injected into the compressor mainly has four functions of cooling, sealing, lubrication and noise reduction. However, during the actual operation of the screw compressor, the amount of fuel injection varies greatly according to the operating conditions and the compressed medium. For example, when the exhaust pressure is high, the gas leakage is large and the volumetric efficiency is low. In addition, when the speed is high, the relative leakage loss is small, but the power consumption of disturbing oil is large, so it is also required to appropriately reduce the amount of oil circulation; The density of the compressed medium is small, and the gas leakage is serious, and the c...
Claims
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IPC IPC(8): F04C29/02
Inventor 吴霞俊张开闯赵力成胡建军王静
Owner WUXI COMPRESSOR CO LTD