CN203299602U - Automatic dissolved oxygen control instrument - Google Patents
Automatic dissolved oxygen control instrument Download PDFInfo
- Publication number
- CN203299602U CN203299602U CN2013203667681U CN201320366768U CN203299602U CN 203299602 U CN203299602 U CN 203299602U CN 2013203667681 U CN2013203667681 U CN 2013203667681U CN 201320366768 U CN201320366768 U CN 201320366768U CN 203299602 U CN203299602 U CN 203299602U
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- Prior art keywords
- dissolved oxygen
- valve
- control
- automatically controlled
- electric control
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Abstract
The utility model discloses an automatic dissolved oxygen control instrument. The automatic dissolved oxygen control instrument comprises a pressure limit device (4), a micro vacuum pump (5), a mixer (6), an electric control exhaust valve (7), an electric control inlet valve (8), a dissolved oxygen probe (9), a flowmeter (10), an electric control liquid phase valve (11) and a cylinder body (13), wherein the pressure limit device (4), the micro vacuum pump (5), the mixer (6), the electric control exhaust valve (7), the electric control inlet valve (8) and the dissolved oxygen probe (9) are respectively mounted on a cylinder cover (12) and are electrically connected with a PLC control system (3), the flowmeter (10) and the electric control liquid phase valve (11) are mounted at a cylinder bottom and are electrically connected with the PLC control system (3), and the cylinder body (13) is an inverted cone shape structure. The automatic dissolved oxygen control instrument has advantages of simple structure, accurate parameter control and full automation and can provide a reliable dissolved oxygen control device for experiments and researches requiring control of oxygen content in a container to meet requirements in the experiments and the researches.
Description
Technical field
The utility model relates to a kind of automaton, particularly relates to a kind of full-automatic dissolved oxygen control instrument.
Background technology
At present, the general deoxidation method that adopts, utilize dissolved oxygen control device to pass into the inert gas deoxygenation exactly in experiment and research, and it mainly comprises the steps.
(1) clean dissolved oxygen control device, then control device is sealed.
(2) open vent valve and liquid feed valve, utilize water or other liquid self gravitation, from inlet, will be full of liquid in control device, close vent valve and liquid feed valve.
(3) open gas admittance valve and liquid valve, the liquid in control device is extruded with inert gas, carry out emptyingly,, to guarantee oxygen-free environment, close gas admittance valve and liquid valve.
(4) open vent valve and liquid feed valve, utilize the reaction solution self gravitation, a certain amount of reaction solution is squeezed in control device, the feed liquor amount is controlled by the display scale on control device, closes afterwards liquid feed valve.
(5) open gas admittance valve, carry out deoxygenation by logical inert gas in control device, after reaching the deoxygenation requirement, close air outlet valve, open liquid valve, continue ventilation, with deoxygenation solution in control device, under the environment that does not contact oxygen, be pressed in reaction vessel with inert gas, close finally gas admittance valve and liquid valve.
Obviously, although above method is feasible, shortcoming is a lot: all need before each the use device is cleaned; Whole process need is once and again driven valve and is closed valve, and process is very loaded down with trivial details, and needs manually-operated, inconvenience very; Solution amount is controlled not accurate enough.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of simple in structure, operate steadily, parameter is controlled accurate, full automatic dissolved oxygen control device.
in order to solve the problems of the technologies described above, a kind of full-automatic dissolved oxygen control instrument that the utility model provides, comprise casing, pressure limiting device, minipump, stirrer, automatically controlled air outlet valve, automatically controlled gas admittance valve, dissolved oxygen probe, flowmeter, automatically controlled liquid phase valve and cylindrical shell, described casing both sides have the suitable aperture of some sizes, described pressure limiting device, minipump, stirrer, automatically controlled air outlet valve, automatically controlled gas admittance valve, dissolved oxygen probe all is installed on cover, and with the PLC control system, be electrically connected to, described flowmeter, at the bottom of automatically controlled liquid phase valve is installed on tin, and with the PLC control system, be electrically connected to, described cylindrical shell is back taper.
The utility model, by following five key elements, has been simplified oxygen removal process greatly, and realizes dissolved oxygen content is carried out full-automatic accurately control.
(1) carry out deoxygenation to passing into inert gas in dissolved oxygen control device.
(2) accurately control the in-out apparatus amount of liquid by back taper cylindrical shell and flowmeter.
(3) in inert gas system, deoxygenation solution is pressed in reaction vessel.
(4) with after deoxygenation solution is discharged, the automatically controlled liquid phase valve of closing, continue to be filled with inert gas in device, when reaching certain malleation, and by constant-voltage equipment, the automatically controlled gas admittance valve of closing.By adopting above operation, make the inert gas environment of keeping all the time certain malleation in control device, saved next deoxygenation front cleaning and evacuation procedure, greatly simplified whole oxygen removal process.
(5), by constant-voltage equipment, minipump, dissolved oxygen probe, flowmeter and electrically-controlled valve, realized the full-automatic accurately control of dissolved oxygen content.
In sum, the utility model, by above-mentioned five key elements, has been simplified oxygen removal process greatly, has effectively guaranteed dissolved oxygen content in solution, and has realized the full-automatic accurately control of dissolved oxygen content, is a kind of full-automatic dissolved oxygen control device of practicality.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, casing 1 both sides have the suitable aperture 2 of some sizes, cylindrical shell 13 is back taper, and with cover 12, seal, pressure limiting device 4, minipump 5, stirrer 6, automatically controlled air outlet valve 7, automatically controlled gas admittance valve 8, dissolved oxygen probe 9 all are installed on cover 12, and with PLC control system 3, be electrically connected to, at the bottom of flowmeter 10, automatically controlled liquid phase valve 11 all are installed on tin, and with PLC control system 3, be electrically connected to.
Not only greatly simplified oxygen removal process after adopting the utility model, and by controlling accurately liquid inventory and under inert gas environment, deoxygenation solution being pressed into reaction vessel, effectively guarantee dissolved oxygen content in solution, and realized the full-automatic accurately control of reaction solution dissolved oxygen content.
Technology path of the present utility model.
Adopt back taper cylindrical shell 13 and flowmeter 10 accurately to control the in-out apparatus solution amount, and by pressure limiting device 4, minipump 5, dissolved oxygen probe 9, flowmeter 10 and electrically-controlled valve, the full-automatic of realization response solution dissolved oxygen content accurately controlled.Concrete implementation step is as follows.
1, device for opening power switch, start minipump 5 by PLC control system 3, and open automatically controlled liquid phase valve 11.
2, accurately monitor the interior solution amount of access to plant by flowmeter 10, when solution amount reaches certain value, by PLC control system 3, close automatically controlled liquid phase valve 11, open stirrer 6, open automatically controlled air outlet valve 7 and automatically controlled gas admittance valve 8.
3, pass into inert gas and carry out deoxygenation in device, accurately control dissolved oxygen content in solution by dissolved oxygen probe 9, when in solution, dissolved oxygen content reaches setting value, close automatically controlled air outlet valve 7 and stirrer 6, open automatically controlled liquid phase valve 11 by PLC control system 3, continue ventilation, deoxygenation solution is pressed into reaction vessel in inert gas system.
The solution amount of 4, by the accurate monitoring device of flowmeter 10, discharging, when discharge rate reaches certain value, close automatically controlled liquid phase valve 11 by PLC control system 3.
5, continue to pass into inert gas in device, make in device the malleation of keeping an inert gas environment, when the device internal pressure reaches pressure limiting device 4 set definite value, by PLC control system 3, close automatically controlled gas admittance valve 8.
Claims (1)
1. full-automatic dissolved oxygen control instrument, comprise casing (1), pressure limiting device (4), minipump (5), stirrer (6), automatically controlled air outlet valve (7), automatically controlled gas admittance valve (8), dissolved oxygen probe (9), flowmeter (10), automatically controlled liquid phase valve (11) and cylindrical shell (13), described casing (1) both sides have the suitable aperture (2) of some sizes, described pressure limiting device (4), minipump (5), stirrer (6), automatically controlled air outlet valve (7), automatically controlled gas admittance valve (8), dissolved oxygen probe (9) all is installed on cover (12), and with PLC control system (3), be electrically connected to, described flowmeter (10), at the bottom of automatically controlled liquid phase valve (11) all is installed on tin, and with PLC control system (3), be electrically connected to, described cylindrical shell (13) is back taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203667681U CN203299602U (en) | 2013-06-25 | 2013-06-25 | Automatic dissolved oxygen control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203667681U CN203299602U (en) | 2013-06-25 | 2013-06-25 | Automatic dissolved oxygen control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203299602U true CN203299602U (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203667681U Expired - Fee Related CN203299602U (en) | 2013-06-25 | 2013-06-25 | Automatic dissolved oxygen control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203299602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353155A (en) * | 2015-12-08 | 2016-02-24 | 张志通 | Novel liquid dissolved oxygen electronic detector |
| CN106557094A (en) * | 2016-11-30 | 2017-04-05 | 清华大学 | Dissolved oxygen content precise control device in a kind of liquid fuel |
-
2013
- 2013-06-25 CN CN2013203667681U patent/CN203299602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353155A (en) * | 2015-12-08 | 2016-02-24 | 张志通 | Novel liquid dissolved oxygen electronic detector |
| CN106557094A (en) * | 2016-11-30 | 2017-04-05 | 清华大学 | Dissolved oxygen content precise control device in a kind of liquid fuel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20140625 |
|
| EXPY | Termination of patent right or utility model |