CN201358271Y - Intelligent gas flow control instrument - Google Patents
Intelligent gas flow control instrument Download PDFInfo
- Publication number
- CN201358271Y CN201358271Y CNU200920088772XU CN200920088772U CN201358271Y CN 201358271 Y CN201358271 Y CN 201358271Y CN U200920088772X U CNU200920088772X U CN U200920088772XU CN 200920088772 U CN200920088772 U CN 200920088772U CN 201358271 Y CN201358271 Y CN 201358271Y
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- valve
- pressure
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- intelligent gas
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- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses an intelligent gas flow control instrument which comprises a mounting cabinet and a pressure stabilizing tank arranged in the mounting cabinet. A high pressure reducing valve, a check valve, an electromagnetic valve and a high-pressure filter are sequentially installed on a gas intake pipe at the lower end of the pressure stabilizing tank, the outmost end of which is communicated with a gas supply device. Two gas outlet pipes are respectively arranged at the middle part and the upper part of the pressure stabilizing tank; each gas outlet pipe is communicated with a valve bank through a manual ball valve; the outer end of the each valve bank is communicated with a gas chamber; each gas chamber is provided with a gas exhaust pipe; and the two gas exhaust pipes are respectively communicated with a smelting furnace. Each valve bank consists of a plurality of electromagnetic valves which are connected in parallel; pressure sensors are installed on the pressure stabilizing tank, the valve banks and the gas chambers; and all the pressure sensors and the electromagnetic valves are connected with a controller. The intelligent gas flow control instrument is convenient to use, novel in design, strong in maneuverability, high in accuracy and long in service life and has good economic benefits after being popularized.
Description
One. technical field:
A kind of gas-flow rate controller that the utility model relates to, particularly relating to a kind of is the intelligent gas-flow rate controller of core with current stabilization miter group valve row.
Two. background technology:
Along with China's rapid economy development and continuous advancement in technology, industries such as machinery, building materials, chemical industry constantly increase the requirement of steel quality always, better balanced molten steel temperature composition how, improve the flowability of molten steel, impel the oxide inclusion come-up, effectively stop molten steel by secondary oxidation, improve the molten steel purity, enhance productivity better, traditional manual valve control, the control of air bladder valve, motor-driven control valve control all can't well solve.There is following defective in above-mentioned several method: (1) manually operated control valve, and control accuracy is poor, is subjected to source of the gas pressure influence, and when bleed pressure hanged down, air blowing can't reach good state, and the steel quality can't reach the anticipation effect; When bleed pressure is high, form the burst inert gas flow, cause current interruption, and then cause that Graphite Electrodes fractures that also can't play desired result, work-ing life is short.(2) pneumatic diaphragm control valve when controlling than low discharge or big flow, all can't be realized better control, and flow control accuracy is poor, and work-ing life is short.(3) motor-driven control valve is subjected to source of the gas pressure influence, and in use, control accuracy is poor, response lag, and work-ing life is short.
Three. the utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of advanced design, can balanced molten steel temperature composition, improve Molten Steel Flow, promotes oxidn inclusion floating, effectively stop molten steel by secondary oxidation, improve the intelligent gas-flow rate controller of molten steel purity and production efficiency.
The technical solution of the utility model is: a kind of intelligent gas-flow rate controller, contain cabinet and buffer tank are installed, described voltage stabilizing is arranged in the described installation cabinet, on the inlet pipe of described buffer tank lower end high-pressure pressure-reducing valve is installed successively, check valve, magnetic valve, high pressure filter, the outermost end of described inlet pipe is communicated with air feeder, the middle part of described buffer tank and top are provided with an escape pipe respectively, each escape pipe all is communicated with one group of valve row by manual ball valve, two groups of valve rows' outer end all is connected with an air chamber, each air chamber all is provided with a vapor pipe, described two vapor pipes are communicated with smelting furnace respectively, and described valve row is formed by connecting by a plurality of magnetic valves are parallel; On described buffer tank, valve row, the air chamber pressure transmitter is installed all, and all the sensors is connected with controller all with magnetic valve.
A Y-junction is set on the inlet pipe between described high-pressure pressure-reducing valve and the check valve, and the 3rd port of this Y-junction is communicated with described two air chambers respectively by two groups of manual ball valves and magnetic valve, forms the other system of blowing.
All be connected in series an adjustable throttling on each magnetic valve of described valve row.Described magnetic valve is two-position two-way solenoid valve.On described two air chambers a described two-position two-way solenoid valve is installed respectively, and this two-position two-way solenoid valve is connected with described controller all.
Described controller is connected with control panel by line, and described control panel is installed on the preceding operation box of smelting furnace.
The beneficial effects of the utility model are:
1, the utility model has adopted a whole set of valve row voltage stabilizing, steady flow system.Rare gas element is blown in the smelting furnace stably, and balanced molten steel temperature improves Molten Steel Flow, the promotes oxidn inclusion floating; Because rare gas element forms gas blanket in molten steel, thereby stops molten steel by secondary oxidation effectively, improve the purity of molten steel, enhance productivity.In addition, because the gas flow effect, in vacuum oven, the rare gas element that is blown into can also be realized power-aid function.
2, the utility model is reasonable in design, by controlling rational argon blowing rate, powdered alloy and molten steel is stirred, and reaches the effect of regulating molten steel.In addition, adopt advanced steady flow system and top hole pressure intelligent regulating system, make flow relative stablize constant.
3, each road air blowing point flow of the utility model, pressure is independently controlled the switching that is applicable between multiple gases, and the air blowing mode of different station, in addition, adopt the domestic standard interface, can the independent groups assembly system, also can with other smelting system compatibilities, also can be according to operating mode requirement on the spot, adjustment member processing parameter.
4, the utility model can be at low discharge scope inner control precision 1.5NL/min argon flow amount, and big flow control accuracy 5NL/min argon flow amount uses very convenient.
5, the utility model use range is wide, can improve metallurgy industry production efficiency greatly to individual, has good economic benefit.
Four. description of drawings:
Fig. 1 is the intelligent gas-flow rate controller structural representation;
Fig. 2 is the constant current constant voltage schematic diagram of intelligent gas-flow rate controller.
Five. embodiment:
Embodiment: referring to Fig. 1 and Fig. 2, among the figure, intelligent gas-flow rate controller contains installs cabinet and buffer tank 5, buffer tank 5 is arranged on to be installed in the cabinet, on the buffer tank 5 lower end inlet pipe high-pressure pressure-reducing valve 4 is installed successively, check valve 3, magnetic valve 2, high pressure filter 1, the outermost end of inlet pipe is communicated with (not drawing among the figure) with air feeder, the middle part of buffer tank 5 and top are provided with an escape pipe respectively, each escape pipe all is communicated with one group of valve row 8 by manual ball valve 7, two groups of valve rows' 8 outer end all is connected with an air chamber 9, each air chamber 9 all is provided with a vapor pipe, two vapor pipes are communicated with (not drawing among the figure) respectively with smelting furnace, valve row is formed by connecting by a plurality of magnetic valves are parallel and (is seven among the figure, also can be five, six, eight etc., determine as required, do not describe in detail one by one); On buffer tank 5, valve row 8, the air chamber 9 pressure transmitter 6 is installed all, and all pressure transmitters 6 are connected with controller all with magnetic valve 2.
A Y-junction is set on the inlet pipe between high-pressure pressure-reducing valve 4 and the check valve 3, and the 3rd port of this Y-junction is communicated with two air chambers 9 respectively by two groups of manual ball valves 7 and magnetic valve 2, forms the other system of blowing.
All be connected in series an adjustable throttling 10 on each magnetic valve 2 of valve row 8.All magnetic valves 2 are two-position two-way solenoid valve.In addition, a two-position two-way solenoid valve 2 also is installed separately respectively on two air chambers, and this two-position two-way solenoid valve 2 is connected with controller all.Controller is connected with control panel by line, and control panel is installed on the preceding operation box of smelting furnace (not drawing among the figure).
The utility model controller is a core with PLC, controls peripheral relay1 circuit; Utilize PCM (P pressure, C numeral, M flow) pulsed technique and method of weighted mean, PLC is according to the assembled state of gathering present flow rate and valve.Calculate current weight, obtain current control figure with setting flow divided by weights again, by the adhesive of PLC driven by program rly., operating valve row 8 motions make present flow rate reach the setting flow.
When the smelting furnace gas permeable brick stops up, need open the other system of blowing when reinforced, time-delay 5～15s automatically switches to correct flow air blowing state.
The concrete structure of the quantity of magnetic valve, change buffer tank can be formed a plurality of embodiment among the change valve row, is the common variation of the utility model, does not describe in detail one by one.
Claims (6)
1, a kind of intelligent gas-flow rate controller, contain cabinet and buffer tank are installed, described buffer tank is arranged in the described installation cabinet, it is characterized in that: on the inlet pipe of described buffer tank lower end high-pressure pressure-reducing valve is installed successively, check valve, magnetic valve, high pressure filter, the outermost end of described inlet pipe is communicated with air feeder, the middle part of described buffer tank and top are provided with an escape pipe respectively, each escape pipe all is communicated with one group of valve row by manual ball valve, two groups of valve rows' outer end all is connected with an air chamber, each air chamber all is provided with a vapor pipe, described two vapor pipes are communicated with smelting furnace respectively, and described valve row is formed by connecting by a plurality of magnetic valves are parallel; On described buffer tank, valve row, the air chamber pressure transmitter is installed all, and all the sensors is connected with controller all with magnetic valve.
2, intelligent gas-flow rate controller according to claim 1, it is characterized in that: a Y-junction is set on the inlet pipe between described high-pressure pressure-reducing valve and the check valve, the 3rd port of this Y-junction is communicated with described two air chambers respectively by two groups of manual ball valves and magnetic valve, forms the other system of blowing.
3, intelligent gas-flow rate controller according to claim 1 and 2 is characterized in that: all be connected in series an adjustable throttling on each magnetic valve of described valve row.
4, intelligent gas-flow rate controller according to claim 3 is characterized in that: described magnetic valve is two-position two-way solenoid valve.
5, intelligent gas-flow rate controller according to claim 4 is characterized in that: on described two air chambers a described two-position two-way solenoid valve is installed respectively, and this two-position two-way solenoid valve is connected with described controller all.
6, intelligent gas-flow rate controller according to claim 5 is characterized in that: described controller is connected with control panel by line, and described control panel is installed on the preceding operation box of smelting furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920088772XU CN201358271Y (en) | 2009-03-03 | 2009-03-03 | Intelligent gas flow control instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920088772XU CN201358271Y (en) | 2009-03-03 | 2009-03-03 | Intelligent gas flow control instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358271Y true CN201358271Y (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920088772XU Expired - Fee Related CN201358271Y (en) | 2009-03-03 | 2009-03-03 | Intelligent gas flow control instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358271Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076815A (en) * | 2012-12-26 | 2013-05-01 | 桂林电子科技大学 | High-accuracy linear control device for fluid flow |
| CN109237105A (en) * | 2018-10-17 | 2019-01-18 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of control valve system that can quickly adjust and its control method |
-
2009
- 2009-03-03 CN CNU200920088772XU patent/CN201358271Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103076815A (en) * | 2012-12-26 | 2013-05-01 | 桂林电子科技大学 | High-accuracy linear control device for fluid flow |
| CN103076815B (en) * | 2012-12-26 | 2015-11-25 | 桂林电子科技大学 | The high-accuracy linear control device of fluid flow |
| CN109237105A (en) * | 2018-10-17 | 2019-01-18 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of control valve system that can quickly adjust and its control method |
| CN109237105B (en) * | 2018-10-17 | 2019-11-26 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of control valve system that can quickly adjust and its control method |
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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: 20091209 Termination date: 20100303 |