Tandem automobile towing compressor system and automatic surge control method

By configuring cooling devices and sensors in the multi-stage steam-driven compressor system and combining it with surge automatic control logic, the problems of high cost, high energy consumption and unsatisfactory control effect when multiple steam-driven compressors are operated in series are solved, and efficient surge risk prediction and automatic control are achieved, ensuring the safe and stable operation of the compressor.

CN120798848APending Publication Date: 2025-10-17CHONGQING JIANGJIN TURBO & CHARGER MASCH CO LTD
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Patent Information

Application Number
CN202511004661.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-21
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

When multiple steam-driven compressors are operated in series, there are problems of high cost, high energy consumption and unsatisfactory control effect. In particular, at low speeds, the bypass return valve intervenes too early, resulting in increased energy consumption. In addition, there are errors in the inlet flow meters of the compressors at all levels, resulting in poor surge control effect.

Method used

A multi-stage steam-driven compressor system is used, equipped with a cooling device, a bypass return valve, a cooling regulating valve and an orifice flowmeter. Combined with a vortex flowmeter, a pressure sensor, a temperature sensor and a speed sensor, the system monitors and adjusts the compressor parameters in real time through surge automatic control logic to avoid surge and optimize medium circulation and temperature control.

Benefits of technology

It effectively reduces costs, improves surge control effects, avoids increased energy consumption, ensures that the compressor operates within a safe working area, and improves system stability and control accuracy.

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Abstract

The invention relates to the technical field of compressors, in particular to a series-connection automobile towing compressor system and an automatic surge control method. The series-connection automobile towing compressor system comprises a plurality of stages of automobile towing compressors, a plurality of temperature reduction devices, a bypass return valve, a plurality of temperature reduction adjusting valves and a plurality of orifice plate flowmeters. The problems that in the prior art, cost is high, energy consumption is large and the control effect is not ideal are effectively solved, the multiple stages of automobile dragging compressors are arranged in series and matched with the temperature reducing device and the bypass backflow valve, effective circulation and temperature control of media are achieved, cost of independently using a surge backflow valve in the prior art is reduced, and meanwhile the control effect is good. Through the arrangement of the vortex shedding flowmeter, the pressure sensor, the temperature sensor and the rotating speed sensor, the inlet flow, pressure, temperature and rotating speed of each stage of compressor are accurately measured, in combination with theoretical surge pressure ratio calculation, the surge risk is pre-judged in advance and automatically controlled, and energy consumption increase caused by premature intervention of a bypass return valve at the low rotating speed is avoided.
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