CN201993664U - Automatic regulating device of laboratory - Google Patents
Automatic regulating device of laboratory Download PDFInfo
- Publication number
- CN201993664U CN201993664U CN2010206813826U CN201020681382U CN201993664U CN 201993664 U CN201993664 U CN 201993664U CN 2010206813826 U CN2010206813826 U CN 2010206813826U CN 201020681382 U CN201020681382 U CN 201020681382U CN 201993664 U CN201993664 U CN 201993664U
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- water box
- orifice plate
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Abstract
The utility model provides an automatic regulating device of a laboratory. A water storage tank, a booster pump, a pneumatic regulating valve, a standard orifice plate and an upper water tank are connected in sequence through a pipeline, wherein, two side pipelines are arranged on the pipeline between the booster pump and the pneumatic regulating valve; one side pipeline conveys water back to the water storage tank, and the other side pipeline is connected with a pressure transmitter; stop valves are arranged on both the side pipelines; an air compressor is connected with the pneumatic regulating valve through an air guide tube; an electrical valve locator is mounted on the pneumatic regulating valve; a stop valve is arranged on the pipeline between the pneumatic regulating valve and the standard orifice plate; a pressure leading tube is vertically mounted below the standard orifice plate and connected with a flow rate transmitter; an electrical heating tube and a thermal resistor are arranged in the upper water tank; the electrical heating tube is positioned at the bottom of the upper water tank; a horizontal pipeline connected with a liquid level transmitter is led out at the bottom of the upper water tank; a stop valve is arranged on the horizontal pipeline; the upper water tank is connected with the water storage tank below the upper water tank through another pipeline; and a water overflow valve is arranged on the pipeline. The automatic regulating device can regulate the flow rate, the pressure, the liquid level and the temperature during chemical production, and has high practicality.
Description
Technical field
The utility model relates to a kind of laboratory self-checking device, particularly the regulating device of temperature, pressure, flow, liquid level four big technological parameters in the chemical process.
Background technology
Present self-checking device is normally regulated single technological parameter with the simulation control instrument.This control device exists some defectives, can only do single experiment usually, uses inconveniently, can not constitute complex control system, and the poor accuracy of experiment, simultaneously to the preservation of gained experimental data with call analysis and also have certain problem in the future.
Summary of the invention
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: providing a kind of can detect control, simple to operate, practical and can be to the permanent laboratory self-checking device of preserving of gained experimental data to the temperature in the chemical process, pressure, flow, liquid level four big technological parameters.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of laboratory self-checking device, it is characterized in that: comprise reserve tank, upper water box, fluid level transmitter, electric heating tube, thermal resistance, supercharge pump, pressure unit, pneumatic control valve, electropneumatic valve positioner, standard orifice plate, flow transmitter and display system, reserve tank is placed on the experiment table, reserve tank, supercharge pump, pneumatic control valve, standard orifice plate is connected by pipeline in turn with upper water box, pipeline between supercharge pump and the pneumatic control valve is provided with two lateral lines, article one, lateral line is carried back reserve tank, another lateral line connects pressure unit, article two, be equipped with stop valve on the lateral line, air compressor connects pneumatic control valve by wireway, electropneumatic valve positioner is installed on the pneumatic control valve, pipeline between pneumatic control valve and the standard orifice plate is provided with stop valve, the vertical pressure guiding pipe of installing in standard orifice plate below, be connected with flow transmitter on the pressure guiding pipe, be provided with electric heating tube and thermal resistance in the upper water box, electric heating tube is positioned at the upper water box bottom, the horizontal pipeline that connects fluid level transmitter is drawn in the upper water box bottom, horizontal pipeline is provided with stop valve, upper water box links to each other by the reserve tank of another pipeline with the upper water box below, and pipeline is provided with the spilling water valve.
Described display system is a panel board, panel board is provided with flow displaying instrument, electric controller, the pressure display instrument table, temperature display meter, the height displaying instrument table, the start button of supercharge pump and stop button, the start button of electric heating tube and stop button, panel board is connected with host computer by telecommunication cable, various instrument on the panel board adopt 485 bus communications, the series connection back is linked into the COM1 port by 485/232 interface, import the data of each instrument into host computer, can revise pid parameter at host computer, control, simple and efficient to handle, gained experimental data and chart can pass through the host computer permanent storage, in master craftsman of the Spring and Autumn period's industrial control configuration software, also can call at any time, so that compare behind the EO and analyze.In addition, be provided with on the lateral line of pressure unit and also be connected with tensimeter, thereby the pressure parameter of measuring can be shown by tensimeter is on-the-spot, also can show by the pressure display instrument table on the panel board.
Principle of work and process:
The reserve tank of laboratory self-checking device is filled water (to maximum height).Open the power branch road formed with the stop valve on the pipeline between supercharge pump, pneumatic control valve, pneumatic control valve and the standard orifice plate, standard orifice plate to upper water box, supply water, open the spilling water valve of upper water box simultaneously, prevent that the water in the upper water box from overflowing to upper water box.Be that measuring instrument (comprising fluid level transmitter, flow transmitter, pressure unit, tensimeter, thermal resistance etc.) by the scene is finished to the measurement of technological parameter in the whole regulating device.Feedwater flow detects by standard orifice plate and flow transmitter, obtains 4～20mA signal by the standard orifice plate differential flow converter, and the flow displaying instrument of passing on the panel board shows and accumulative total that the while also can be passed to and be shown preservation on the host computer.Open the stop valve on the lateral line that is provided with pressure unit, the top hole pressure of supercharge pump just can detect by tensimeter or pressure unit, tensimeter carries out the scene to detected pressure parameter and shows, and pressure unit shows detected 4～20mA the signal is far passed to panel board, also can pass to simultaneously to show preservation on the host computer.Heating to water in the upper water box is to control by unlatching, the stop button of the electric heating tube on the panel board, the temperature of upper water box is carried out three-way detection with thermal resistance PT100, detected data remote shows to the temperature display meter on the panel board, passes to simultaneously to show preservation on the host computer.The height of water level of upper water box detects with fluid level transmitter, open the stop valve on the horizontal pipeline, measure by the differential pressure fluid level transmitter, the 4～20mA the signal is far passed that records is given the height displaying instrument table on the panel board of pulpit, also can pass to simultaneously to show preservation on the host computer.In addition, control procedure in the whole regulating device is all finished by electric controller, the output signal of electric controller is passed to pneumatic control valve by electropneumatic valve positioner, thereby according to the temperature that obtains or liquid level or flow signal control pneumatic control valve switch, control water level or temperature or flow are to satisfy setting value automatically.The required energy of pneumatic control valve is provided by air compressor, promptly produces pressurized air (140Kpa) by air compressor, makes pneumatic control valve work.
The beneficial effect that the utility model had is: a kind of laboratory self-checking device is provided, and whole device can detect and control flow, pressure, liquid level, temperature four big technological parameters in the Chemical Manufacture, and is simple to operate, practical; Flow measurement utilizes standard orifice plate to measure, and the measurement form is simple, clear; Be provided with tensimeter and pressure deflection machine simultaneously, the pressure parameter of measuring can be shown by tensimeter is on-the-spot, also can show by the pressure display instrument table; Gained experimental data and chart can permanent storage, also can call at any time in master craftsman of the Spring and Autumn period's industrial control configuration software, so that compare behind the EO and analyze.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, reserve tank; 2, experiment table; 3, spilling water valve; 4, thermal resistance; 5, pipeline; 6, upper water box; 7, air compressor; 8, electric heating tube; 9, stop valve; 10, horizontal pipeline; 11, fluid level transmitter; 12, pressure unit; 13, standard orifice plate; 14, pressure guiding pipe; 15, flow transmitter; 16-1, pipeline; 16-2, pipeline; 17, stop valve; 18, electropneumatic valve positioner; 19, pneumatic control valve; 20, lateral line; 21, stop valve; 22, tensimeter; 23, lateral line; 24, supercharge pump; 25, stop valve; 26, panel board; 27, flow displaying instrument; 28, electric controller; 29, pressure display instrument table; 30, temperature display meter; 31, height displaying instrument table; 32, supercharge pump releases the button; 33, the stop button of supercharge pump; 34, electric heating tube releases the button; 35, the stop button of electric heating tube; 36, communication cable; 37, host computer; 38, wireway
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in Figure 1, the laboratory self-checking device comprises reserve tank 1, upper water box 6, fluid level transmitter 11, electric heating tube 8, thermal resistance 4, supercharge pump 24, pressure unit 12, pneumatic control valve 19, electropneumatic valve positioner 18, standard orifice plate 13, flow transmitter 15 and display system, reserve tank 1 is placed on the experiment table 2, reserve tank 1, supercharge pump 24, pneumatic control valve 19, standard orifice plate 13 and upper water box 6 are connected in turn by pipeline, pipeline 16-2 between supercharge pump 24 and the pneumatic control valve 19 is provided with two lateral lines, article one, lateral line 23 is carried back reserve tank 1, another lateral line 20 connects pressure unit 12, article two, be equipped with stop valve on the lateral line, air compressor 7 connects pneumatic control valve 19 by wireway 38, electropneumatic valve positioner 18 is installed on the pneumatic control valve 19, pipeline 16-1 between pneumatic control valve 19 and the standard orifice plate 13 is provided with stop valve 17, pressure guiding pipe 14 is vertically installed in standard orifice plate 13 belows, be connected with flow transmitter 15 on the pressure guiding pipe 14, be provided with electric heating tube 8 and thermal resistance 4 in the upper water box 6, electric heating tube 8 is positioned at upper water box 6 bottoms, the horizontal pipeline 10 that connects fluid level transmitter 11 is drawn in upper water box 6 bottoms, horizontal pipeline 10 is provided with stop valve 9, upper water box 6 links to each other with the reserve tank 1 of upper water box 6 belows by another pipeline 5, and pipeline 5 is provided with spilling water valve 3.Described display system is a panel board 26, panel board 26 is provided with flow displaying instrument 27, regulator 28, pressure display instrument table 29, temperature display meter 30, height displaying instrument table 31, supercharge pump release the button 32 and the start button 34 and the stop button 35 of stop button 33 and electric heating tube, panel board 26 is connected with host computer 37 by telecommunication cable 36, each instrument on the panel board 26 adopts 485 bus communications, the series connection back is linked into the COM1 port by 485/232 interface, import the data of instrument into host computer 37, can on host computer 37, revise pid parameter, control, simple and efficient to handle, gained experimental data and chart can pass through host computer 37 permanent storage, in master craftsman of the Spring and Autumn period's industrial control configuration software, also can call at any time, so that compare behind the EO and analyze.In addition, be provided with on the lateral line 20 of pressure unit 12 and also be connected with tensimeter 22, thereby the pressure parameter measured can also can be shown by the pressure display instrument table 29 on the panel board 26 by 22 on-the-spot demonstrations of tensimeter.
Principle of work and process:
The reserve tank 1 of laboratory self-checking device is filled water (to maximum height).Open the power branch road formed with the stop valve 17 on the pipeline between supercharge pump 25, pneumatic control valve 19, pneumatic control valve and the standard orifice plate, standard orifice plate 13 to upper water box 6, supply water for upper water box 6, open the spilling water valve 3 of upper water box 6 simultaneously, prevent that the water in the upper water box 6 from overflowing.Be that measuring instrument (comprising fluid level transmitter 11, flow transmitter 15, pressure unit 12, tensimeter 22, thermal resistance 4 etc.) by the scene is finished to the measurement of technological parameter in the whole regulating device.Feedwater flow detects by standard orifice plate 13 and flow transmitter 15, obtain 4～20mA signal by standard orifice plate 13 differential flow converters 15, the flow displaying instrument of passing on the panel board 26 27 shows and accumulative total that the while also can be passed on the host computer 37 and be shown preservation.Open stop valve 21, the top hole pressure of supercharge pump 24 just can detect by tensimeter 22 or pressure unit 12,22 pairs of detected pressure parameters of tensimeter carry out the scene and show, and pressure unit 12 shows detected 4～20mA the signal is far passed to panel board 26, also can pass on the host computer 37 simultaneously to show preservation.To the heating of water in the upper water box 6 be by the electric heating tube on the panel board 26 release the button 34 and stop button 35 control, the temperature of upper water box 6 is carried out three-way detection with thermal resistance 4 (thermal resistance PT100), detected data remote shows to the temperature display meter 30 on the panel board 26, passes to simultaneously on the host computer 37 to show preservation.The height of water level of upper water box 6 detects with fluid level transmitter 11, open the stop valve 9 on the horizontal pipeline 10, measure by differential pressure fluid level transmitter 11,4～20mA the signal is far passed that records is given the height displaying instrument table 31 on the panel board 26, also can pass on the host computer 37 simultaneously to show preservation.In addition, control procedure in the whole regulating device is all finished by electric controller 28, the output signal of electric controller 28 is passed to pneumatic control valve 19 by electropneumatic valve positioner 18, thereby according to the temperature that obtains or liquid level or flow signal control pneumatic control valve 19 switches, control water level or temperature or flow are to satisfy setting value automatically.The pneumatic control valve 19 required energy are provided by air compressor 7, promptly produce pressurized air (140Kpa) by air compressor 7, make pneumatic control valve 19 work.
Claims (4)
1. laboratory self-checking device, it is characterized in that: comprise reserve tank, upper water box, fluid level transmitter, electric heating tube, thermal resistance, supercharge pump, pressure unit, air compressor, pneumatic control valve, electropneumatic valve positioner, standard orifice plate, flow transmitter and display system, reserve tank is placed on the experiment table, reserve tank, supercharge pump, pneumatic control valve, standard orifice plate is connected by pipeline in turn with upper water box, pipeline between supercharge pump and the pneumatic control valve is provided with two lateral lines, article one, lateral line is carried back reserve tank, another lateral line connects pressure unit, article two, be equipped with stop valve on the lateral line, air compressor connects pneumatic control valve by wireway, electropneumatic valve positioner is installed on the pneumatic control valve, pipeline between pneumatic control valve and the standard orifice plate is provided with stop valve, the vertical pressure guiding pipe of installing in standard orifice plate below, be connected with flow transmitter on the pressure guiding pipe, be provided with electric heating tube and thermal resistance in the upper water box, electric heating tube is positioned at the upper water box bottom, the horizontal pipeline that connects fluid level transmitter is drawn in the upper water box bottom, horizontal pipeline is provided with stop valve, upper water box links to each other by the reserve tank of another pipeline with the upper water box below, and pipeline is provided with the spilling water valve.
2. laboratory according to claim 1 self-checking device is characterized in that: be provided with on the lateral line of pressure unit and also be connected with tensimeter.
3. laboratory according to claim 1 self-checking device, it is characterized in that: described display system is a panel board, and panel board is provided with the start button and the stop button of the start button of flow displaying instrument, electric controller, pressure display instrument table, temperature display meter, height displaying instrument table, supercharge pump and stop button, electric heating tube.
4. laboratory according to claim 3 self-checking device is characterized in that: described panel board is connected with host computer by telecommunication cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206813826U CN201993664U (en) | 2010-12-27 | 2010-12-27 | Automatic regulating device of laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206813826U CN201993664U (en) | 2010-12-27 | 2010-12-27 | Automatic regulating device of laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993664U true CN201993664U (en) | 2011-09-28 |
Family
ID=44670149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206813826U Expired - Fee Related CN201993664U (en) | 2010-12-27 | 2010-12-27 | Automatic regulating device of laboratory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993664U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520740A (en) * | 2011-12-24 | 2012-06-27 | 东莞市升微机电设备科技有限公司 | Regulation device for water content of compressed air |
| CN102610132A (en) * | 2012-02-17 | 2012-07-25 | 南京化工职业技术学院 | Instrument/meter mounting and maintaining integrated practical training device |
| CN103310696A (en) * | 2013-06-18 | 2013-09-18 | 南京化工职业技术学院 | Instrument operation skill training device |
-
2010
- 2010-12-27 CN CN2010206813826U patent/CN201993664U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520740A (en) * | 2011-12-24 | 2012-06-27 | 东莞市升微机电设备科技有限公司 | Regulation device for water content of compressed air |
| CN102520740B (en) * | 2011-12-24 | 2013-11-06 | 东莞市升微机电设备科技有限公司 | Regulation device for water content of compressed air |
| CN102610132A (en) * | 2012-02-17 | 2012-07-25 | 南京化工职业技术学院 | Instrument/meter mounting and maintaining integrated practical training device |
| CN102610132B (en) * | 2012-02-17 | 2014-02-26 | 南京化工职业技术学院 | Instrument/meter mounting and maintaining integrated practical training device |
| CN103310696A (en) * | 2013-06-18 | 2013-09-18 | 南京化工职业技术学院 | Instrument operation skill training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20111227 |