CN203963190U - A kind of Full-automatic gas sample introduction COMM communication - Google Patents
A kind of Full-automatic gas sample introduction COMM communication Download PDFInfo
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- CN203963190U CN203963190U CN201420372681.XU CN201420372681U CN203963190U CN 203963190 U CN203963190 U CN 203963190U CN 201420372681 U CN201420372681 U CN 201420372681U CN 203963190 U CN203963190 U CN 203963190U
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- switching valve
- sampling switching
- permanent magnetic
- speed
- actuating motor
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Abstract
The utility model discloses a kind of Full-automatic gas sample introduction COMM communication, comprise gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor, described gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor are arranged in device cabinet by fixed support, described permanent magnetic DC speed-reducing actuating motor connects logic control circuit plate, and described logic control circuit plate connects power switch by power transformer; The beneficial effects of the utility model are, driving device for gas sampling switching valve structure and control system have been changed complicated, higher to sampling switching valve manufacturing required precision, manufacturing cost and user cost are too high, the adaptive shortcoming such as single between drive unit and sampling switching valve, increased the suitability between drive unit and sampling switching valve, a set of drive unit is by regulating moment of torsion, get final product the sampling switching valve of adaptive different torsion and switching corner, be easy to realize automatic control, and novelty simple in structure, has significantly reduced cost of production.
Description
Technical field
The utility model relates to a kind of a kind of controllable valve part that gaseous sample is accurately imported to gas chromatograph or other gas analyses, the sample introduction and the switching that are widely used in various model gas chromatographs and use gas transport analytical instrument.The gas sampling and the gas analysis process that are a kind of analytical instrument flow to selector valve device and mode.
Background technique
Gas automatic sampling switching valve refers in gas chromatographic analysis or other chemical analysis automatic by a valve member (driving mechanism that comprises it), periodically, sampling in sample line quantitatively, is then sent to chromatographic column by carrier gas or other analysis mode is carried out compartment analysis.The gas automatic sampling switching valve of comparative maturity has the logical sampling cock of pneumatic membrane type six, six logical pull bar valves, six-plane valve at present.Six-plane valve is more satisfactory valve member, and serviceability temperature is higher, and the life-span is long, corrosion-resistant, and dead volume is little, and tightness is good, can under low pressure use.Also can be processed as eight and lead to, ten is logical, and ten Twoway valvess, to meet the requirement of multiple flow passages.
Most automatic samplers are with six-way injection valve as sampling switching valve, and it comprises circular flap (rotor) and fixed valve base (stator) two-part.Valve seat is connected to analyzes gas circuit, quantity tube, sample holes and other peripheral components, is generally with high-abrasive material manufactures such as stainless steels.Flap and valve seat are combined closely, and during operation, can rotate.Automatic sampling switching valve is driven by electronic or pneumatic motor, and hand sampling switching valve is on flap, to have connected a handle.
Sampling switching valve has multiple driving mode:
● hand sampling switching valve
● air impeller sampling switching valve: can be divided into cylinder and drive and two kinds of modes of pneumatic motor
● motor driver sampling switching valve: generally select stepper motor
● microelectronic driver sampling switching valve
Gas sampling, handoff technique that at present gas chromatograph and partial analysis instrument use, adopt pneumatic or stepper motor as the key device driving substantially.Its structure and control system are complicated, noise is larger, main parts size and control system mostly are import, expensive, domestic common customer is difficult to bear, but most of domestic user, because of the restriction of domestic like product technology and working ability, must select imported product, also restricted the automatic sampling handoff technique application of domestic equipment.Therefore, simplifying the design of automatic sampling switching valve driving device structure and control mode, improve reliable transmission, reduce manufacturing cost and user cost, is domestic analytical instrument MANUFACTURER and user's common requirements.
Model utility content
Complicated in order to overcome gas sampling switching valve structure and control system, higher to sampling switching valve manufacturing required precision, main valve member dependence on import, manufacturing cost and user cost are crossed the shortcomings such as high, realize gas sampling switching valve interposed structure and control simple and reliable, reduce and manufacture and cost of production, the utility model provides a kind of Full-automatic gas sample introduction COMM communication.
The utility model solves the technological scheme that its technical problem adopts, a kind of Full-automatic gas sample introduction COMM communication, comprise gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor, described gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor are arranged in device cabinet by fixed support, described permanent magnetic DC speed-reducing actuating motor connects logic control circuit plate, described logic control circuit plate connects power switch by power transformer, described logic control circuit plate is also connected with external start signal output terminal, device starts button, status indicator lamp and time are set toggle switch,
Described gas sampling switching valve comprises that pressure adjusting nut, flap drive seat, flap, valve body, valve rod, connecting bushing and fixed base, described pressure adjusting nut is installed on valve rod one end, described flap drives seat, flap, valve body to be connected successively, wherein said connecting bushing is connected with permanent magnetic DC speed-reducing actuating motor, and described connecting bushing is installed in fixed base.
The beneficial effects of the utility model are, driving device for gas sampling switching valve structure and control system have been changed complicated, higher to sampling switching valve manufacturing required precision, main valve member dependence on import, manufacturing cost and user cost are too high, the adaptive shortcoming such as single between drive unit and sampling switching valve, increased the suitability between drive unit and sampling switching valve, a set of drive unit is by regulating moment of torsion, get final product the sampling switching valve of adaptive different torsion and switching corner, be easy to realize automatic control, and novelty simple in structure, significantly reduced cost of production.Concrete:
1) device adopts programmable time/logic control mode, can effectively avoid because of machinery or photoelectric travel limit switch malfunctioningly causes motor rotation blockage to burn, flap is unsceptered etc. that fault occurs, and controls safe and reliable.
2) device selects valve body and spool all to adopt high-low temperature resistant, high pressure resistant inert material and structural design, and compact structure is applicable to online analytical instrument automatic sampling switching controls.
3) select permanent magnetic DC speed-reducing motor, by changing motor power-on time, regulate the corner of drive motor, will be on driving corner one threshold quantity of motor set the maximum that is greater than sample introduction, switching valve and switch corner, the sample introduction that makes device can automatic adaptation switch corner to vary in size, switching valve (as four-way, six logical, eight logical, ten logical etc.).
4) Setup Controller part can trigger the output of two-way actuating signal, as synchronous startup Data Processing in Chromatography Workstation and gas chromatograph etc.
Accompanying drawing explanation
Fig. 1 is Full-automatic gas sample introduction COMM communication plan view;
Fig. 2 is Full-automatic gas sample introduction COMM communication electrical equipment control figure;
Fig. 3 is Full-automatic gas sample introduction COMM communication panel control graph;
Fig. 4 sets toggle switch figure the time;
In figure: 1. pressure adjusting nut, 2. flap drives seat, 3. flap, 4. valve body, 5. valve rod, 6. connecting bushing, 7. fixed base, 8. fixed support, 9. permanent magnetic DC speed-reducing actuating motor, 10. install cabinet, 11. external start signal output terminals, 12. power switches, 13. devices start button, 14. FPGA control circuit boards, 15. power transformer, 16. status indicator lamps, 17. times were set toggle switch.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure, the utility model is a kind of Full-automatic gas sample introduction COMM communication, comprise gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor 9, described gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor 9 are arranged in device cabinet 10 by fixed support 8, described permanent magnetic DC speed-reducing actuating motor 9 connects FPGA control circuit board 14, described FPGA control circuit board 14 connects power switch 12 by power transformer 15, described FPGA control circuit board 14 is also connected with external start signal output terminal 11, device starts button 13, status indicator lamp 16 and time are set toggle switch 17,
Described gas sampling switching valve comprises that pressure adjusting nut 1, flap drive seat 2, flap 3, valve body 4, valve rod 5, connecting bushing 6 and fixed base 7, described pressure adjusting nut 1 is installed on valve rod 5 one end, described flap drives seat 2, flap 3, valve body 4 to be connected successively, wherein said connecting bushing 6 is connected with permanent magnetic DC speed-reducing actuating motor 9, and described connecting bushing 6 is installed in fixed base 7.
In Fig. 1, this device is arranged on gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor on device cabinet shown position by fixed support, wherein gas sampling switching valve drives seat, flap, valve body, valve rod, connecting bushing, fixed base to form by pressure adjusting nut, flap, permanent magnetic DC speed-reducing actuating motor carrys out propellant sampling switching valve by connecting bushing, and pressure adjusting nut can be used to modulating valve flap seal pressure.
As shown in Figure 2, logic control circuit plate is inputted 220V ac power supply and is provided after power transformer transformation by socket for power switch and controls and driving power.According to control program, by permanent magnetic DC speed-reducing actuating motor, by connecting bushing, carry out propellant sampling switching valve, by changing motor power-on time, regulate actuating motor corner, drive corner to set to be greater than the maximum of sample introduction, switching valve to switch corner power-on time in motor, the sample introduction that makes device can automatic adaptation switch corner to vary in size, switching valve (as four-way, six logical, eight logical, ten logical etc.).
As shown in Figure 3, the time by device on panel set toggle switch to sample introduction/switching valve start the stand-by period, the stagnation period that resets, set, pressing device starts button, device according to control program switch, the operation such as stagnation, reset.Generally, during the operations such as device switches, stagnation, reset, status indicator lamp is glittering.
The operation of FPGA control circuit is implemented: sample introduction/switching valve starts the stand-by period, stagnation period resets, by toggle switch, set, maximum set value is 9999s (can charged or not charged setting), starts the stand-by period, resets all to take stagnation period and press button as time zero.Start stand-by period≤reset during stagnation period, press startup button, the operation of instrument postive direction; Start stand-by period=reset during stagnation period, press startup button, instrument is without response; Reset stagnation period >=startup during the stand-by period, press startup button, the reverse operation of instrument sample introduction/switching valve.
1. sample introduction/switching valve starts the setting of stand-by period:
toggle switch home position 0-0-0-0 (as shown in Figure 4):
according to analyze to need set starting the stand-by period, as set the stand-by period, be 15s (press startup button, start to sample introduction/switching valve to rotate the stand-by period be 15s), can stir toggle switch to 0-0-1-5:
turn off power supply (if power supply is open mode)
press and pin startup button (short circuit startup button)
reopen/switch on power, treat status indicator lamp Chang Lianghou; Break/unclamp startup button
2. sample introduction/switching valve resets and stagnates the setting (press to start and press, after operation operation starts, sample introduction/switching valve reverses back stagnation period of initial position) of stand-by period, and maximum set value is 9999s:
according to analysis, need reset stagnation period, as set, stagnating the stand-by period is 68s,
start after the stand-by period sets, directly stir toggle switch to 0-0-6-8:
operating parameter is set complete, and status indicator lamp starts flicker (once/s), and instrument enters analysis standby condition
press startup button, can start analysis operation operation
press startup button, analysis operation starts, and press key lamp is bright, status indicator lamp fast blink (secondary/s) simultaneously
sample introduction/switching valve is waited for startup, after sample introduction/switching valve turns to sample introduction position, and status indicator lamp Chang Liang
after sample introduction/switching valve is stagnated the stand-by period, valve resets,, status indicator lamp restarts flicker (once/s), and instrument enters next and analyzes standby condition
3. analysis operation is complete, turns off power supply, operation Operational Limits autostore, start next time Automatically invoked;
4. after instrumentation starts, press startup button >=3s, instrument reset by force (interrupt operation);
By external start signal output terminal, can connect outside startup (as chromatograph Cheng Sheng startup, workstation startup), outside startup is equal to panel button and starts.
The utility model is not limited to above-mentioned mode of execution, and anyone should learn the drawn identical or close technological scheme of structural change of making under the utility model enlightenment, within all falling into protection domain of the present utility model.
The technology that the utility model is not described in detail, shape, structure are partly known technology.
Claims (2)
1. a Full-automatic gas sample introduction COMM communication, it is characterized in that, comprise gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor, described gas sampling switching valve and permanent magnetic DC speed-reducing actuating motor are arranged in device cabinet by fixed support, described permanent magnetic DC speed-reducing actuating motor connects logic control circuit plate, described logic control circuit plate connects power switch by power transformer, and described logic control circuit plate is also connected with external start signal output terminal, device starts button, status indicator lamp and time setting toggle switch.
2. Full-automatic gas sample introduction COMM communication as claimed in claim 1, it is characterized in that, described gas sampling switching valve comprises that pressure adjusting nut, flap drive seat, flap, valve body, valve rod, connecting bushing and fixed base, described pressure adjusting nut is installed on valve rod one end, described flap drives seat, flap, valve body to be connected successively, wherein said connecting bushing is connected with permanent magnetic DC speed-reducing actuating motor, and described connecting bushing is installed in fixed base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372681.XU CN203963190U (en) | 2014-07-07 | 2014-07-07 | A kind of Full-automatic gas sample introduction COMM communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420372681.XU CN203963190U (en) | 2014-07-07 | 2014-07-07 | A kind of Full-automatic gas sample introduction COMM communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203963190U true CN203963190U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420372681.XU Expired - Fee Related CN203963190U (en) | 2014-07-07 | 2014-07-07 | A kind of Full-automatic gas sample introduction COMM communication |
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| CN (1) | CN203963190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645498A (en) * | 2017-01-16 | 2017-05-10 | 国网福建省电力有限公司 | Automatic starting device and method for gas chromatographic detector for transformer oil |
-
2014
- 2014-07-07 CN CN201420372681.XU patent/CN203963190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645498A (en) * | 2017-01-16 | 2017-05-10 | 国网福建省电力有限公司 | Automatic starting device and method for gas chromatographic detector for transformer oil |
| CN106645498B (en) * | 2017-01-16 | 2022-07-05 | 国网福建省电力有限公司 | Automatic starting device and starting method of transformer oil gas chromatography detector |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 Termination date: 20200707 |