Semi internal cooling type centrifugal compressor
A centrifugal compressor, cooling technology, applied in mechanical equipment, non-variable-capacity pumps, machines/engines, etc., can solve the problems of difficult installation layout, complex internal structure of the compressor, etc., and achieve the effect of less equipment space
Inactive Publication Date: 2012-04-11
杭州求是透平机制造有限公司 +2
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Problems solved by technology
However, this type of centrifugal compressor has cooling water tanks in the front and rear cover plates of the impeller and the front and rear partitions of the diffuser and is connected with the cooling water inlet and outlet pipes, which makes the internal structure of the compressor complicated. It brings difficulties to the installation layout of various components, especially when it is applied to multi-stage compressors.
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[0009] The work done by the centrifugal compressor to the gas is done in the impeller flow passage of the compressor. Therefore, effectively reducing the temperature of the gas in the impeller will have a significant effect on reducing the power consumption of the compressor unit. To achieve this goal, in the present invention, a cooling water tank is set at the rear cover of the impeller and the front cover of the impeller, and the water tank is connected with the cooling water pipe, and the cooling water in the water tank is exchanged with the compressed gas in the compressor impeller. To reduce the gas temperature in the impeller flow channel.
[0010] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0011] Such as figure 1 with figure 2 As shown, the semi-internally cooled centrifugal compressor of the present invention includes: front impeller cover 1, adjusting pad 2, diffuser 3, diffu...
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The invention discloses a semi internal cooling type centrifugal compressor, wherein cooling water tanks connected with a cooling water pipe are placed at an impeller rear cover plate and an impeller front cover plate; cooling water in the water tank exchanges heat with compressed air in an impeller of the compressor so as to reduce the temperature of the gas in a flow channel of the impeller. According to the semi internal cooling type centrifugal compressor, the airflow in the impeller of the compressor in a compressing and pressurizing process can be continuously cooled to make the compressing process approach to an ideal constant temperature process so as to achieve the purpose of energy saving, on the other hand, the semi internal cooling type centrifugal compressor occupies little equipment space, and therefore other components of the compressor can be mounted and designed in enough space.
Description
Technical field [0001] The invention belongs to the technical field of compressors for mechanical products, and relates to a centrifugal compressor, in particular to a semi-internal cooling type centrifugal compressor. Background technique [0002] When the centrifugal compressor runs at a certain pressure ratio and flow rate, its power consumption increases with the increase of the airflow temperature. Therefore, reducing the airflow temperature is one of the important measures to reduce the energy consumption of the centrifugal compressor unit. In a general centrifugal compressor, the airflow from the front-stage volute is cooled in the intercooler and then enters the next stage, which reduces the intake air temperature of the next-stage compressor, thus achieving the purpose of energy saving of the whole machine. However, due to the large geometric size of the intercooler, its internal flow field is complicated, and the vortex zone and separation zone seriously interfere with...
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Inventor 周国强周音
Owner 杭州求是透平机制造有限公司