Centrifugal compressor balance pipe assembly, centrifugal compressor and refrigerating system
A technology of centrifugal compressors and balance tubes, which is applied in the direction of machines/engines, pump components, mechanical equipment, etc., can solve the problems of oil leakage in balance tubes, poor oil supply performance and operation reliability of oil pumps, and high pressure, so as to prevent running out Oil, the effect of improving operational reliability
Active Publication Date: 2020-11-13
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Problems solved by technology
However, for high-temperature heat pump centrifugal compressor units, due to the high outlet water temperature required by the working conditions, the discharge pressure of the centrifugal compressor will also be very high, which is several times the pressure of ordinary refrigeration or heating. It is difficult to meet the effect of balanced pressure, and the pressure in the oil tank will still be relatively high, which will lead to poor oil supply performance and operation reliability of the oil pump, and the large pressure difference will lead to oil leakage in the balance pipe, which will affect the operation of the centrifugal compressor. reliability
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[0021] see in conjunction figure 2 As shown, according to an embodiment of the present application, a centrifugal compressor balance tube assembly includes:
[0022] The first pipe is connected between the suction port 1 of the centrifugal compressor and the oil tank 4;
[0023] The second pipe 7 includes a first port and a second port, the first port communicates with the suction port 1 , and the second port communicates with the casing 2 of the centrifugal compressor.
[0024] Wherein, the first pipe fitting is the straight-through pipe 5 in the balance pipe structure of the traditional centrifugal compressor, which can play the role of conducting the suction port 1 of the centrifugal compressor and the oil tank 4; the second pipe fitting 7 added by the application connects the centrifugal compressor The suction port 1 of the suction port communicates with the box body 2. When the discharge pressure of the centrifugal compressor is very high, the pressure of the refrigeran...
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The invention provides a centrifugal compressor balance pipe assembly, a centrifugal compressor and a refrigerating system. The centrifugal compressor balance pipe assembly comprises a first pipe fitting and a second pipe fitting, wherein the first pipe fitting communicates between an air suction port and an oil tank of the centrifugal compressor; the second pipe fitting comprises a first port anda second port; the first port communicates with the air suction port; and the second port communicates with a box body of the centrifugal compressor. According to the centrifugal compressor balance pipe assembly, when the exhaust pressure of the centrifugal compressor is high, the pressure can be relieved to the air suction port through the second pipe fitting as soon as possible, the pressure inthe oil tank can be better and more quickly balanced, and therefore the problem that oil runs out of a traditional balance pipe due to operation of the compressor can be prevented, and the operationreliability of the centrifugal compressor can be improved.
Description
technical field [0001] The application belongs to the technical field of centrifugal compressors, and in particular relates to a centrifugal compressor balance tube assembly, a centrifugal compressor and a refrigeration system. Background technique [0002] In large-scale commercial or industrial fields, there are many places where centrifugal compressors are used for refrigeration. At the same time, with the development of centrifugal compressors, high-temperature heat pump centrifugal compressors are increasingly used in some large-scale industrial fields. Such as some steel mills, oil fields and other industrial fields. Generally speaking, for oil-lubricated centrifugal compressor devices, the pressure in the oil tank will increase with the pressure leaked from the exhaust side. In order to prevent the oil tank pressure from being too high and affect the oil supply performance and operation reliability of the oil pump, There will be a balance pipe structure between the o...
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IPC IPC(8): F04D17/10F04D29/00F04D29/063F04D29/42
CPCF04D17/10F04D29/002F04D29/063F04D29/4213
Inventor 张治平钟瑞兴周宇蒋楠欧阳鑫望
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION