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MVR centrifugal steam compressor air inlet anti-surge pipe

A steam compressor, centrifugal technology, applied in mechanical equipment, non-variable-capacity pumps, machines/engines, etc., can solve the problems of high manufacturing cost and complex structure, achieve simplified structure, reduce compressor efficiency, eliminate surge vibrating effect

Pending Publication Date: 2019-08-02
CHONGQING TURBO FLOW MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of the rotatable guide vane (transferable guide vane) is complex and the manufacturing cost is high

Method used

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  • MVR centrifugal steam compressor air inlet anti-surge pipe
  • MVR centrifugal steam compressor air inlet anti-surge pipe
  • MVR centrifugal steam compressor air inlet anti-surge pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Basic as attached figure 1 , figure 2 Shown: MVR centrifugal steam compressor intake anti-surge pipe, including air induction tube 1, first air induction pipe 2, second air induction pipe 3, first flange 4, second flange 5, swirl cylinder 6, The inner cylinder 7, deflector 8 and swirl plate 9, the first air induction pipe 2 and the second air induction pipe 3 are all in communication with the air induction cylinder 1, the first air induction pipe 2 is connected to the steam at the exhaust port of the compressor, and the second air induction pipe 3 The second air-introduction pipe 3 is located directly opposite to the first air-induction pipe 2 for external steam supply. The inner cylinder 7 is located inside the air-inducing cylinder 1 and is coaxial with the air-inducing cylinder 1. One end of the chamber formed between the inner cylinder 7 and the air-inducing cylinder 1 is closed by the first flange 4, and the other end is connected with the swirl plate 9. The inne...

Embodiment 2

[0032] Compared with Embodiment 1, this embodiment differs only in that: Figure 7 , Figure 8 The swirl holes 11 on the swirl plate 9 shown are nozzle vane-shaped passages.

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Abstract

The patent relates to the technical field of MVR centrifugal steam compressors, and discloses an MVR centrifugal steam compressor air inlet anti-surge pipe. The MVR centrifugal steam compressor air inlet anti-surge pipe comprises an air guide cylinder, a first air guide pipe, a first flange and a second flange, wherein the first air guide pipe communicates with the air guide cylinder, and the first air guide pipe is connected with steam of a compressor exhaust port; the MVR centrifugal steam compressor air inlet anti-surge pipe further comprises an inner cylinder, a flow guide plate and a rotational flow plate, wherein the inner cylinder is positioned inside the air guide cylinder, one end of a cavity formed between the inner cylinder and the air guide cylinder is closed by the first flange, the other end of the cavity is connected with the rotational flow plate, the flow guide plate is fixed between the inner cylinder and the air guide cylinder, and the flow guide plate is located between the first air guide pipe and the rotational flow plate; and a plurality of flow guide holes are formed in the flow guide plate, and a plurality of rotational flow holes capable of rotating an airflow are formed in the rotational flow plate. According to the scheme, under the condition that the steam of the compressor exhaust port is introduced, the inner cylinder, the flow guide plate and the rotational flow plate which are specially designed are utilized so as to rotate the introduced steam flow, then a direction angle of an air flow entering the compressor is changed, and then the purpose of preventing and eliminating the surge of the compressor is achieved.

Description

technical field [0001] The invention relates to the technical field of MVR centrifugal steam compressors, in particular to an intake anti-surge tube of an MVR centrifugal steam compressor. Background technique [0002] The surge of the MVR centrifugal vapor compressor is an inherent phenomenon. When the compressor surges, the consequences are very serious. It will deteriorate the performance of the compressor, and the pressure and efficiency will be significantly reduced. The compressor will generate noise, humming, and severe vibration. The mechanism of surge is that the actual flow of the compressor is less than the surge flow when the compressor is running. [0003] Therefore, in order to avoid or reduce the surge during compressor start-up or operation, in the structural design of the compressor, the compressor outlet gas is usually directly introduced into the air inlet, so that the compressor inlet flow rate is increased to be greater than the surge flow rate; or adop...

Claims

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Application Information

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IPC IPC(8): F04D29/44F04D27/02
CPCF04D29/441F04D27/0238
Inventor 刘雅黔周余曾延年杨建川李晓春王纯远
Owner CHONGQING TURBO FLOW MACHINERY MFG
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