CN2050189U - Miniature reaction device controlled by microcomputer - Google Patents
Miniature reaction device controlled by microcomputer Download PDFInfo
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- CN2050189U CN2050189U CN 88205028 CN88205028U CN2050189U CN 2050189 U CN2050189 U CN 2050189U CN 88205028 CN88205028 CN 88205028 CN 88205028 U CN88205028 U CN 88205028U CN 2050189 U CN2050189 U CN 2050189U
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Abstract
The utility model discloses a miniature reaction device controlled by microcomputer, which belongs to an automatic and intellectualized instrumenttation. The utility model is used for the experiments such as the catalytic reaction conditions of the oil refining, the chemical industry and the petrochemical industry, the catalyst activity evaluation and the reaction kinetics. The key technology is the fine control of the reaction temperature, the pressure and the tiny flow capacity, and the automatic recognition and control of the 'temperature runaway' during the exothermic reaction. The microcomputer system can realize the automatic control and the data processing to one to fifteen sets of miniature. Reaction.
Description
The utility model relates to microcomputer realizes robotization and intelligentized oil refining, chemical industry and petrochemical complex minisize reaction scientific experimentation device.
This class micro-reaction equipment is by gas, liquid charging commingled system, and clack box is equipped with the reaction tube and the heating furnace of catalyzer, and control automatically, analysis and data handling system are formed.Catalytic reaction is divided two kinds of heat absorption and heat releases, and stronger themopositive reaction tends to produce " temperature runaway " (temperature of reaction raises suddenly significantly), burns out catalyzer test can't be carried out.For making test figure have degree of accuracy and repeatability preferably, need carry out accurately and stable control reaction conditionss such as temperature, flow and pressure.
For addressing the above problem, common way is to measure Indicator Reaction pipe die temperature, automatically control the reaction tube pipe surface temperature, adopt self-supporting (belong to proportion expression difference control is arranged) flow or pressure controller, can only be by its set-point of manual change,, often not prompt enough and burn catalyzer when running into themopositive reaction by artificial judgment operation control " temperature runaway ".
The purpose of this utility model provides improved temperature, flow, pressure and controls automatically, and control is judged in themopositive reaction " temperature runaway " automatically, and test is normally carried out, and obtains the degree of accuracy and repeatability of test figure preferably.
The purpose of this utility model is achieved in that and adopts the direct automatic measurement and control reaction tube of microcomputer die temperature, by automatic high temperature micrometering valve flow, pressure realization indifference formula are controlled automatically, when themopositive reaction, discern " temperature runaway " and rapid reduction reaction mass flow automatically and stop the power supply of reaction tube heating furnace, with control " temperature runaway ", when temperature of reaction drops to set-point, automatically recover flow, power supply, enter normal operation, avoid burning out catalyzer.
Concrete structure of the present utility model is provided by following examples and accompanying drawing.Its flow process is as shown in Figure 1: 1 is the unstripped gas steel cylinder, and 2 is reduction valve, and 3 is mass flowmeter, and 4 is flow indicator, and 5 is tensimeter.Unstripped gas mixes with liquid phase feeding through threeway 6, mixer 7 and enters the reactor 9 that catalyzer is housed after give hot coil 8, carries out the neither endothermic nor exothermic catalytic reaction under chosen temperature, pressure and flow conditions.The stop valve 10 of gas-phase reaction product through being positioned at constant temperature oven 14, micrometering valve 11 is with six-way valve 12 emptying or through insulation gas-carrier pipeline 13, the spectrometer that discolors is analyzed and data processing automatically, and can send into microcomputer by the RS232 interface and be optimized automatic control.
Steel cylinder 17, reduction valve 18, mass flowmeter 19, flow indicator 20, stop valve 21, variable valve 22, tensimeter 23 is inert purge gas or another kind of unstripped gas gas circuit with retaining valve 24.25,29 is the different liquids stock bottle, and 28 and 30 is the micro-measurement pump, and 27,31 is stop valve, and 28,32 is retaining valve.One or more liquid charging stocks enter primary heater 8 and reactor 9 by mixer 7.
33 is mini air compressor, and 34 is filter for molten, and 35 is tensimeter.36 is needle-valve, and 37 is that gas rotameter and valve body 38 are formed self-operated flow controller, and as the source of the gas of fluidisation sand bath reacting furnace 16 fine sand fluidisation soaking, 15 are the heating electric furnace heating wire.This device also can adopt metal block reacting furnace or gradientless reactor.
High temperature is manual, automatic dual-purpose micrometering valve 11 is critical components.When one road gas feed (gas has voltage stabilizer, but liquid charging multichannel), be used for control stabilization flow (1 ┄ 10 liters/time), when multipath gas charging (each have current regulator, liquid charging one tunnel, multichannel all can), be used for controlling reactor pressure.11 structure sees that accompanying drawing 2,1 is a valve rod, and 2 is pressure cap, and 3 is packing ring, and 4 is " O " RunddichtringO, and 5 is valve body, and 6 are outlet, and 7 is the valve point, and 8 is sealing gasket, and 9 is valve seat, and 10 is the high-pressure inlet end.Valve body is positioned at constant temperature oven (300 ℃ of 50 ┄).
Accompanying drawing 3 is manual, the automatic fine tuning mechanism of high temperature micrometering valve.1 is step motor, and 2 is the axle interlink, and 3 is plastic sleeve, 4 is the casing pedestal, and 5 is the micrometering valve heat radiator, and 6 is the constant temperature tank wall, 7 is valve body, and 8 is valve rod, and 9 is worm screw, 10 is worm gear, 11 is shaft-cup, and 12 is sunk screw, and 13 are the fine setting turn-knob, can manual shift, also can with microcomputer and stepper motor drives decomposition pressure or tiny flow quantity indifference formula self-actuated controller.
Claims (2)
1, with micro-processor controlled micro-reaction equipment is by microcomputer, one to 15 cover micro-reaction equipment, high temperature automatic fine tuning valve and automatic analytical instrument are formed, its design feature is the unit construction formula, can adapt to various oil refining, the requirement of chemical industry and the scientific experimentation of petrochemical complex minisize reaction, it is characterized in that adopting microcomputer directly to measure automatically, the die temperature of the reaction tube of catalyzer is equipped with in control, " temperature runaway " phenomenon when discerning themopositive reaction automatically, and reduce reactant flow rapidly by high temperature automatic fine tuning valve, stop the power supply of reaction tube heating furnace simultaneously, with inhibition " temperature runaway ", and recover normal operation automatically.
2, reaction unit according to claim 1, it is characterized in that valve body one end is in insulation and has needle valve structure in the clack box, its entrance point can bear high temperature, the high pressure logistics that generates after the catalytic reaction, the other end is in outside the insulation clack box, and heat radiator is housed, and valve rod links to each other with the worm gear wheel shaft of worm gear, worm gear box, the end of worm screw is equipped with knob, can carry out manual shift, the other end links to each other with the axle of step motor, is regulated by microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205028 CN2050189U (en) | 1988-05-10 | 1988-05-10 | Miniature reaction device controlled by microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88205028 CN2050189U (en) | 1988-05-10 | 1988-05-10 | Miniature reaction device controlled by microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050189U true CN2050189U (en) | 1989-12-27 |
Family
ID=4839514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88205028 Granted CN2050189U (en) | 1988-05-10 | 1988-05-10 | Miniature reaction device controlled by microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050189U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054928C (en) * | 1995-09-21 | 2000-07-26 | 厦门大学 | Optimization control system for catalytic cracking plant |
| CN101637712B (en) * | 2009-08-25 | 2012-02-01 | 山东省科学院能源研究所 | Full-automatic miniature reaction device |
| CN102841092A (en) * | 2012-09-07 | 2012-12-26 | 辽宁省产品质量监督检验院 | Quick tester for methanol content in gasoline |
| CN103777027A (en) * | 2012-10-25 | 2014-05-07 | 中国科学院大连化学物理研究所 | High-flux multi-functional micro-reactor system monitored by computer |
| CN107188139A (en) * | 2017-07-18 | 2017-09-22 | 华纳创新（北京）科技有限公司 | A kind of nitrogen monoxide generating device and preparation method |
-
1988
- 1988-05-10 CN CN 88205028 patent/CN2050189U/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1054928C (en) * | 1995-09-21 | 2000-07-26 | 厦门大学 | Optimization control system for catalytic cracking plant |
| CN101637712B (en) * | 2009-08-25 | 2012-02-01 | 山东省科学院能源研究所 | Full-automatic miniature reaction device |
| CN102841092A (en) * | 2012-09-07 | 2012-12-26 | 辽宁省产品质量监督检验院 | Quick tester for methanol content in gasoline |
| CN102841092B (en) * | 2012-09-07 | 2015-06-24 | 辽宁省产品质量监督检验院 | Quick tester for methanol content in gasoline |
| CN103777027A (en) * | 2012-10-25 | 2014-05-07 | 中国科学院大连化学物理研究所 | High-flux multi-functional micro-reactor system monitored by computer |
| CN103777027B (en) * | 2012-10-25 | 2015-08-26 | 中国科学院大连化学物理研究所 | A kind of multi-functional micro-reactive system of high flux of computer monitoring |
| CN107188139A (en) * | 2017-07-18 | 2017-09-22 | 华纳创新（北京）科技有限公司 | A kind of nitrogen monoxide generating device and preparation method |
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