CN202212274U

CN202212274U - Inert gas protection control system for centrifuges on anti-explosion sites

Info

Publication number: CN202212274U
Application number: CN2011202787827U
Authority: CN
Inventors: 顾根生; 耿金奇; 倪金怀; 许关红; 高锐
Original assignee: JIANGSU SAIDELI PHARMACEUTICAL MACHINES MANUFACTURING Co Ltd
Current assignee: JIANGSU SAIDELI PHARMACEUTICAL MACHINES MANUFACTURING Co Ltd
Priority date: 2011-08-02
Filing date: 2011-08-02
Publication date: 2012-05-09
Anticipated expiration: 2021-08-02

Abstract

The utility model discloses an inert gas protection control system for centrifuges on anti-explosion sites, which comprises a high-pressure gas inlet pipeline, a low-pressure gas inlet pipeline, a pressure detection control loop and an oxygen content detection control loop. The high-pressure inlet pipeline consists of an electromagnetic valve a (1) and a pneumatic exhaust valve (11), the low-pressure gas inlet pipeline consists of an electromagnetic valve b (2), a pressure reducing valve (3), a pressure gauge (4), a check valve (5) and the pneumatic exhaust valve (11), the pressure detection control loop consists of a pressure transmitter (7), and the oxygen content detection control loop consists of a filter (8), a sampling pump (9) and a gas detector (10). Besides, the high-pressure gas inlet pipeline and the low-pressure gas inlet pipeline form a gas inlet pipeline of a centrifuge, and the pressure detection control loop and the oxygen content detection control loop form a detection control loop of the centrifuge. Problems about inert gas control are solved by the inert gas protection control system, and effectiveness and reliability of the inert gas protection control system are guaranteed.

Description

A kind of deactivation gas shield control system that is used for explosion-proof occasion centrifuge

Technical field

The utility model relates to a kind of deactivation gas shield and controls system, especially relates to a kind of deactivation gas shield control system that is used for explosion-proof occasion centrifuge.

Background technology

Centrifuge mainly uses in pharmacy, chemical industry, and the material great majority that centrifuge separates contain solvent, these solvents be have volatile; Very easily blast, and can there be the possibility of blasting as a kind of separation machinery of high speed rotation in centrifuge if do not control its gas inside environment; Therefore; General adopt the method that charges into deactivation gas to the centrifuge inner chamber to control to improve its gas inside environment, but many times just directly charge into deactivation gas and do not control to the centrifuge inner chamber, operating personnel do not know when the deactivation gas displacement is accomplished yet; When do not know need increase deactivation gas; Can only control time swap by experience, cause the waste of a large amount of inert gases, this is both dangerous also uneconomic behavior.

Summary of the invention

The purpose of the utility model has overcome deficiency of the prior art exactly, provides a kind of simple in structure, safe and reliable deactivation gas shield to control system.

The problem of the required solution of the utility model is to realize through following technical scheme: comprise the high pressure admission pipeline of being made up of magnetic valve, pneumatic air bleeding valve; The low-pressure admission pipeline of forming by magnetic valve, pressure-reducing valve, Pressure gauge, check valve, pneumatic air bleeding valve; The pressure detecting control loop of forming by pressure transmitter; The oxygen content of being made up of filter, sampling pump, gas detector detects control loop, it is characterized in that high pressure admission pipeline and low-pressure admission pipeline compose in parallel air inlet pipeline; Pressure detecting control loop and oxygen content detect control loop and compose in parallel the detection control loop, and air inlet pipeline is connected with centrifuge with the detection control loop.

The technical scheme that the utility model adopts is designed to high pressure admission pipeline, low-pressure admission pipeline with the air inlet pipeline that gets into the centrifuge inner chamber, can select to use, and reduces the gas displacement time; Detect gas oxygen content and gas pressure in the centrifuge inner chamber simultaneously, guaranteed deactivation gas shield control system effectiveness and reliability, reduced the inert gas use amount.

Description of drawings

Below in conjunction with accompanying drawing the utility model is done further explanation:

Accompanying drawing is depicted as the structural representation of the utility model

Among the figure 1, magnetic valve a 2, magnetic valve b 3, pressure-reducing valve 4, Pressure gauge 5, check valve 6, centrifuge 7, pressure transmitter 8, filter 9, sampling pump 10, gas detector 11, pneumatic air bleeding valve.

The specific embodiment

Can know by accompanying drawing; This deactivation gas shield control system that is used for explosion-proof occasion centrifuge comprises the high pressure admission pipeline of being made up of magnetic valve a1, pneumatic air bleeding valve 11; The low-pressure admission pipeline of forming by magnetic valve b2, pressure-reducing valve 3, Pressure gauge 4, check valve 5, pneumatic air bleeding valve 11; The pressure detecting control loop of forming by pressure transmitter 7; The oxygen content of being made up of filter 8, sampling pump 9, gas detector 10 detects control loop, and high pressure admission pipeline and low-pressure admission pipeline compose in parallel air inlet pipeline; Pressure detecting control loop and oxygen content detect control loop and compose in parallel the detection control loop, and air inlet pipeline is connected with centrifuge 6 with the detection control loop.

Before centrifuge starts, charge into the inert gas of certain pressure by the upper left side direction of arrow among the figure, open magnetic valve a1, operated pneumatic valve 11 this moment; Replace the air in the centrifuge 6 fast; This moment, sampling pump 9 was sent into gas detector 10 from the gas that the centrifuge inner chamber extracts after filter 8 filters, and closed magnetic valve a1, operated pneumatic valve 11 after the detection oxygen content is qualified, started centrifuge work; Pressure transmitter 7 detects with gas detector 10 simultaneously in the course of the work; Any index is defective to be opens solenoid valve b2, and inert gas gets into centrifuge 6 inner chambers after pressure-reducing valve 3 decompressions, keep the inner chamber inert environments; Magnetic valve a1, magnetic valve b2, pneumatic air bleeding valve 11 can be realized full automatic working through program setting, do not need artificial intervention.

Obviously; The foregoing description of the utility model only be for explain clearly that the utility model does for example; But be not used for limiting the scope of the utility model; All technical schemes that are equal to also belong to the category of the utility model, and the scope of patent protection of the utility model should be limited each item claim.

Claims

1. system is controlled in a deactivation gas shield that is used for explosion-proof occasion centrifuge; Comprise the high pressure admission pipeline of forming by magnetic valve, pneumatic air bleeding valve; The low-pressure admission pipeline of forming by magnetic valve, pressure-reducing valve, Pressure gauge, check valve, pneumatic air bleeding valve; By the pressure detecting control loop that pressure transmitter is formed, the oxygen content of being made up of filter, sampling pump, gas detector detects control loop, it is characterized in that high pressure admission pipeline and low-pressure admission pipeline compose in parallel air inlet pipeline; Pressure detecting control loop and oxygen content detect control loop and compose in parallel the detection control loop, and air inlet pipeline is connected with centrifuge with the detection control loop.