CN204511846U - High-Pressure Compressor volumetric efficiency measuring device - Google Patents

Abstract

The utility model relates to a kind of High-Pressure Compressor volumetric efficiency measuring device, and gas cylinder two ends tap into gas port and relief opening, and inlet and outlet mouth connects cross fitting, exhaust solenoid valve, and cross fitting connects pressure, temperature transducer, air inlet electromagnetic valve; Exhaust solenoid valve connects U2, U3 chip, and air inlet electromagnetic valve connects switch; Processor is by I/O control U2, U3 chip enable end; Processor and U2, U3 chip enable end are isolated by U1 light lotus root; Pressure, temperature transducer are by the AD conversion interface in grafting joint P3 connection handling device.During work, press switch, air inlet electromagnetic valve is opened, exhaust solenoid valve closes, processor writes down gas cylinder first pressing force value, time, temperature, write down storage pressure, time, temperature value to processor during the rated pressure value set, exhaust solenoid valve is opened, and calculates High-Pressure Compressor volumetric efficiency according to ideal-gas equation processor.Simple by the utility model method of measurement, easy to operate, accuracy is high.

Description

High-Pressure Compressor volumetric efficiency measuring device

Technical field

The utility model relates to a kind of High-Pressure Compressor volumetric efficiency measuring device.

Background technique

Volumetric efficiency is one of High-Pressure Compressor Specifeca tion speeification, when High-Pressure Compressor inspection, maintenance, must measure volumetric efficiency.This patent mainly utilizes gas cylinder, pressure transducer, temperature transducer, solenoid valve and processor directly to measure High-Pressure Compressor volumetric efficiency, and method of measurement is simple, and accuracy is high, and automation is good, very practical.

Summary of the invention

The purpose of this utility model is for above-mentioned present situation, aims to provide a kind of method of measurement simple, the High-Pressure Compressor volumetric efficiency measuring device that easy to operate, accuracy is high, effective.

The implementation of the utility model object is, High-Pressure Compressor volumetric efficiency measuring device, gas cylinder two ends spin suction port and relief opening, relief opening spins exhaust solenoid valve, suction port spins cross fitting, the left joint of cross fitting spins pressure transducer, and right connector spins temperature transducer, and upper connection spins air inlet electromagnetic valve; Exhaust solenoid valve connects U2 chip by grafting joint P1, and air inlet electromagnetic valve meets K switch EY, and air inlet electromagnetic valve connects U3 chip by grafting joint P2; Processor is by I/O control U2 chip, U3 chip enable end; Process reason device and U2 chip, U3 chip enable end are isolated by U1 light lotus root; Pressure transducer, temperature transducer connect the inner AD conversion interface of processor by grafting joint P3.

When using the utility model, press K switch EY, air inlet electromagnetic valve is opened, and exhaust solenoid valve is closed, and gas cylinder first pressing force value P write down by processor₁, time t₁, temperature T₁, during the rated pressure value that arrival sets, storage pressure value P write down by processor₂, time t₂, temperature T₂, exhaust solenoid valve is opened, and calculates High-Pressure Compressor volumetric efficiency according to ideal-gas equation processor.

The utility model method of measurement is simple, easy to operate, accuracy is high, effective.

Accompanying drawing explanation

Fig. 1 is the utility model gas cylinder part-structure schematic diagram,

Fig. 2 is the utility model automatic control electric schematic diagram,

Fig. 3 is the particular flow sheet detected with the utility model.

Embodiment

With reference to the accompanying drawings in detail the utility model is described in detail.

With reference to Fig. 1, Fig. 2, gas cylinder 4 two ends spin suction port 5 and relief opening 3, relief opening 3 spins the exhaust solenoid valve 1 be connected with High-Pressure Compressor air outlet, gas cylinder suction port 5 spins the lower contact 13 of cross fitting 8, the left joint 11 of cross fitting spins pressure transducer 12, right connector 7 spins temperature transducer 6, and upper connection 10 spins air inlet electromagnetic valve 9.Exhaust solenoid valve connects U2 (CC24060D-1) chip by grafting joint P1, and air inlet electromagnetic valve meets K switch EY.Air inlet electromagnetic valve connects U3 (CC24060D-2) chip by grafting joint P2; Processor passes through I/O mouth (GPIO1) control U2 (CC24060D-1) chip enable end, by I/O mouth (GPIO2) control U3 (CC24060D-2) chip enable end; Processor and U2 chip, U3 chip enable end are isolated by U1 (TLP521-2) light lotus root.Pressure transducer 6 is by grafting joint P3 connection handling device inner AD conversion interface adc_pressure, and temperature transducer 6 is by grafting joint P4 connection handling device inner AD conversion interface adc_temperature.

With reference to Fig. 1, Fig. 2, Fig. 3, during utility model works: High-Pressure Compressor air outlet is connected with air inlet electromagnetic valve 9 suction port, during work, press K switch EY, open air inlet electromagnetic valve 9, exhaust solenoid valve 1, High-Pressure Compressor work, treat High-Pressure Compressor working stability, close exhaust solenoid valve 1, gas cylinder 4 first pressing force value P write down by processor₁, time t₁, temperature T₁, High-Pressure Compressor works on, and during the rated pressure value that arrival sets, gas cylinder 4 pressure value P write down by processor₂, time t₂, temperature T₂, exhaust solenoid valve 1 is opened.Processor is by formula:calculate High-Pressure Compressor volumetric efficiency,

In formula: m_pfor t=t₂-t₁the air quality of time inner high voltage air compressor press-in gas cylinder 4,

M_gfor t=t₂-t₁the theoretical air displacement of air compressor under suction condition in time,

M_pby formula$m_P=\frac{V_{p}M}{R}(\frac{P_2}{T_2}-\frac{P_1}{T_1})$Calculate,

In formula, V_pfor gas cylinder volume,

R is molar gas constant,

M is molal weight.

M_gby formula$m_g=(t_2-t_1)\×n\×V_g\×\frac{P_{3}M}{R{T}_3}$Calculate,

In formula, n is High-Pressure Compressor frequency of okperation,

Vg is High-Pressure Compressor swept volume,

P₃for normal atmospheric pressure,

T₃for ambient temperature.

When exhaust solenoid valve 1 is opened, P₁=P_3,t₁=T₃.

Claims (1)

1. High-Pressure Compressor volumetric efficiency measuring device, it is characterized in that: gas cylinder two ends spin suction port and relief opening, relief opening spins exhaust solenoid valve, suction port spins cross fitting, the left joint of cross fitting spins pressure transducer, right connector spins temperature transducer, and upper connection spins air inlet electromagnetic valve; Exhaust solenoid valve connects U2 chip by grafting joint P1, and air inlet electromagnetic valve meets K switch EY, and air inlet electromagnetic valve connects U3 chip by grafting joint P2; Processor is by I/O control U2 chip, U3 chip enable end; Process reason device and U2 chip, U3 chip enable end are isolated by U1 light lotus root; Pressure transducer, temperature transducer connect the inner AD conversion interface of processor by grafting joint P3.