CN203688188U - Valve electric driving device switching life testing device - Google Patents
Valve electric driving device switching life testing device Download PDFInfo
- Publication number
- CN203688188U CN203688188U CN201420031601.4U CN201420031601U CN203688188U CN 203688188 U CN203688188 U CN 203688188U CN 201420031601 U CN201420031601 U CN 201420031601U CN 203688188 U CN203688188 U CN 203688188U
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- time relay
- power supply
- valve
- drive unit
- valve drive
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Abstract
The utility model discloses a valve electric driving device switching life testing device. A valve driving working power supply is connected with a valve electric driving device and a second time relay through a first time relay; after being electrified, the second time relay starts timing; the valve driving working power supply is connected with the valve electric driving device, a counter and the second time relay through the first time relay; a common terminal of the valve electric driving device is connected with the other end of the valve driving working power supply; a pressure sensor arranged on a valve pipeline is connected to a standard signal processing circuit; the output of the standard signal processing circuit is connected to a power supply adjusting device; and a vibrator is connected with the power supply adjusting device through the second time relay. With the valve electric driving device switching life testing device of the utility model adopted, actual situations of the opening and closing of a valve can be represented, and the actual situations can be reflected more authentically, and therefore, valve switching lives measured by the valve electric driving device switching life testing device are accurate.
Description
Technical field
This patent relates to a kind of electric valve drive unit switch life test unit.
Background technology
Electrically operated valve carries out switching manipulation by electric valve drive unit, realized the opening and closing of valve through gear reduction band movable valve valve handle by motor, the use of motor has certain life-span, for the electrically operated valve for important use occasion, there is real meaning to detecting its serviceable life.
In the opening and closing process of valve, inevitably be subject to the impact of hydrodynamic pressure, when switch, there will be certain vibration, it is to producing adverse influence the serviceable life of electric valve drive unit, impact shock situation when existing detection technique can not fully be simulated valve Vidacare corp switch, therefore, test unit can not truly reflect the serviceable life of electric valve drive unit.
Summary of the invention
Provide a kind of electric valve drive unit switch life test unit with novel, can simulated field behaviour in service, realize the serviceable life statistics of electric valve drive unit under simulated pressure impact condition.
The technical solution of the utility model is as follows:
Electric valve drive unit switch life test unit, valve drives working power to be connected with valve closing power supply terminal or the valve opening power supply terminal of electric valve drive unit by the normally closed or normally open contact in the conversion contact of very first time relay, and, be connected with second time relay, second time relay obtains electric rear startup timing; Valve drive working power by the conversion contact of very first time relay often open or normally closed interlock is connected with valve opening power supply terminal or the valve closing power supply terminal of electric valve drive unit; And, be connected with counter and second time relay; The public terminal of electric valve drive unit and valve
Drive the working power other end to connect; One pressure transducer being arranged on valve pipeline is connected to standard signal treatment circuit, the output of standard signal treatment circuit is connected to an apparatus for adjusting power supply, apparatus for adjusting power supply according to the signal output of standard signal treatment circuit with the pressure adjustment power supply changing that is directly proportional; Vib. is connected with apparatus for adjusting power supply by second time relay, and Vib. is analog vibration state during the second time relay timing is connected.
Optionally, the standard signal of described standard signal treatment circuit output is 0～5V or 0 ~ 10V voltage signal, or 0～20mA or 4～20mA current signal.
Optionally, described very first time relay is the circulating time relay of dual-delay.
Optionally, valve drives working power to be connected by the normally closed interlock of very first time relay conversion contact K1 and valve closing power supply terminal and second time relay of electric valve drive unit, and valve drives working power to be connected by the normally open contact of very first time relay conversion contact K1 and valve opening power supply terminal, counter and second time relay of electric valve drive unit.
Optionally, the second described time relay is the energising make delay breakaway-element time relay.
Optionally, described apparatus for adjusting power supply is can be with the frequency converter of standard signal adjusting in direct ratio.
Optionally, described apparatus for adjusting power supply is can be with the AC voltage adjusting of standard signal adjusting in direct ratio
Device or DC voltage regulator.
The beneficial effects of the utility model:
Electric valve drive unit switch life test unit of the present utility model, the vibration producing while simulating the opening and closing of valve Vidacare corp by the Vib. by the second time relay control, the practical situation can approach the opening and closing of electric valve drive unit time.
And by being arranged at the pressure transducer on valve pipeline, Vib. is connected to can pressure-dependent apparatus for adjusting power supply, reacts more really actual conditions, therefore the electric valve drive unit switch life of its statistics has real meaning.
Brief description of the drawings
Accompanying drawing described herein, in order to provide further understanding of the present utility model, forms a part for the utility model application, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.
Accompanying drawing 1 is the electrical principle block diagram of a kind of embodiment of the utility model,
Accompanying drawing 2 is electrical principle block diagrams of the another kind of embodiment of the utility model.
In figure:
1, very first time relay,
2, valve drives working power,
3, electric valve drive unit,
31, valve closing power supply terminal,
32, public terminal,
33, valve opening power supply terminal,
4, counter,
5, second time relay,
6, Vib.,
7, pressure transducer,
8, standard signal treatment circuit,
9, apparatus for adjusting power supply.
Embodiment
By particular specific embodiment, technology contents of the present utility model is described below, the content that those skilled in the art can be disclosed by this instructions is understood other advantage of the present utility model and effect easily.The utility model also can be implemented or be applied by other different specific embodiment, and viewpoint and application that the every details in this instructions also can be based on different are being carried out various modifications and change under spirit of the present utility model.
Electric valve drive unit is the valve via reduction gearing band movable valve by direct current generator or alternating current generator
Handle is realized the open and close of valve, in the time that electric valve drive unit is used in the occasion with larger pressure, its opening and closing process certainly leads to certain vibration, and innovation of the present utility model is the vibration that it produces can the opening and closing of real simulation electric valve drive unit time.
Referring to Fig. 1, electric valve drive unit switch life test unit, valve drives working power 2 to be connected with valve closing power supply terminal or the valve opening power supply terminal of electric valve drive unit 3 by the normally closed or normally open contact in the conversion contact of very first time relay 1, and, be connected with second time relay 5, second time relay 5 obtains electric rear startup timing; Valve drive working power 2 by the conversion contact of very first time relay 1 often open or normally closed interlock is connected with valve opening power supply terminal or the valve closing power supply terminal of electric valve drive unit 3; And, be connected with counter 4 and second time relay 5; The public terminal of electric valve drive unit 3 drives working power 2 other ends to be connected with valve.
One pressure transducer 7 being arranged on valve pipeline is connected to standard signal treatment circuit 8, is arranged at pressure transducer 7 in order to simulate the residing time environment of valve, can be at random or set condition apply different pressure to pressure transducer 7.
The output of standard signal treatment circuit 8 is connected to an apparatus for adjusting power supply 9, apparatus for adjusting power supply 9 according to the signal output of standard signal treatment circuit 8 with the pressure adjustment power supply changing that is directly proportional; Be pressure when large, the frequency of output is high, and the voltage of output is high, and corresponding, motor rotation speed is high.Vib. 6 is connected with apparatus for adjusting power supply 9 by second time relay 5, and Vib. 6 is analog vibration state during the second time relay 5 timings are connected.
Conventional, valve drives working power 2 and electric valve drive unit 3 to form close loop.The valve opening power supply terminal 33 of for example electric valve drive unit 3 drives one end of working power 2 to be connected with valve closing power supply terminal 31 and valve, for example anodal, the public terminal 32 of electric valve drive unit 3 drives the other end of working power 2 to be connected with valve, for example negative pole.
Optionally, the standard signal that described standard signal treatment circuit 8 is exported is 0～5V or 0 ~ 10V voltage
Signal, or 0～20mA or 4～20mA current signal.This class signal can be for many automation equipments
Adjusting.
If Vib. 6 is to determine rotating speed by frequency size, described apparatus for adjusting power supply 9 is for believing with standard
The frequency converter of number adjusting in direct ratio.If Vib. 6 determines rotating speed by voltage swing, described apparatus for adjusting power supply is can be with the AC voltage adjusting of standard signal adjusting in direct ratio.The frequency adjustment of above-mentioned frequency converter, and voltage-regulation is routine techniques, no longer narration.
Referring to Fig. 2, valve drives working power 2 to be connected with the valve closing power supply terminal 31 of electric valve drive unit 3 and second time relay 5 by the normally closed interlock of very first time relay 1 conversion contact K1, and valve drives working power 2 to be connected by the normally open contact of very first time relay 1 conversion contact K1 and the valve opening power supply terminal 33 of electric valve drive unit 3, counter 4 and second time relay 5.
Described very first time relay 1 is the circulating time relay of dual-delay, for example the H3BF type time relay.This type time relay can be realized internal relay contact and periodically switch on and off.Its connection is expressed as ON state, disconnects and is expressed as OFF state, and the time of ON state and OFF state can arbitrarily be set.
When work, when very first time relay 1 is through time delay, very first time relay 1 conversion contact K1 changes, conversion contact K1 normally open contact is connected, the 3 Yi road inputs of electric valve drive unit, be that valve opening power supply terminal 33 drives working power 2 to connect with valve, valve is realized unlatching work, simultaneously, counter 4 and second time relay 5 obtain electric work, counter 4 starts counting, the second described time relay 5 is the energising make delay breakaway-element time relay, therefore, the second time relay 5 normally open contacts power on closed immediately, and then Vib. 6 starts the working time vibration arranging according to second time relay 5, equal the opening time of electrically operated valve the turn-on time of second time relay 5, Vibration Condition during with real simulation valve opening.
After the ON state of very first time relay 1 finishes, i.e. timing finishes, very first time relay 1 transfers OFF state to, conversion contact K1 normally closed interlock is connected, another road work input of electric valve drive unit 3, be that valve closing power supply terminal 31 drives working power 2 to connect with valve, realize automatically closing of electrically operated valve.
According to the setting of very first time relay 1, go round and begin again above, can carry out continuous switching manipulation to electrically operated valve, complete and once open and close cycle count once, realize the detection in serviceable life of electric valve drive unit.
Meanwhile, Vib. 6 is connected in pressure and changes and the apparatus for adjusting power supply 9 of proportional variation, can
Truly reflect the application feature of electric valve drive unit reality.
Be set the turn-on time that is greater than second time relay 5 turn-on time of very first time relay 1, can guarantee the opening and closing of electric valve drive unit 3, also can there is an out-of-work time, in order to avoid electric valve drive unit 3 overuses and damages.
It is Switching Power Supply that described valve drives working power 2, and it has, and volume is little, efficiency is high,, applied widely in practice.
Although this patent is explained with reference to preferred embodiment and accompanying drawing, non-limiting but above-mentioned explanation should be considered as illustrative, variation and amendment that the person that is familiar with technique makes according to spirit of the present utility model, all should belong to the protection domain of this patent.
Claims (8)
1. electric valve drive unit switch life test unit, is characterized in that:
Valve drives working power to be connected with valve closing power supply terminal or the valve opening power supply terminal of electric valve drive unit by the normally closed or normally open contact in the conversion contact of very first time relay, and, be connected with second time relay, second time relay obtains electric rear startup timing;
Valve drive working power by the conversion contact of very first time relay often open or normally closed interlock is connected with valve opening power supply terminal or the valve closing power supply terminal of electric valve drive unit; And, with
Counter is connected with second time relay;
The public terminal of electric valve drive unit drives the working power other end to be connected with valve;
One pressure transducer being arranged on valve pipeline is connected to standard signal treatment circuit, the output of standard signal treatment circuit is connected to an apparatus for adjusting power supply, apparatus for adjusting power supply according to the signal output of standard signal treatment circuit with the pressure adjustment power supply changing that is directly proportional;
Vib. is connected with apparatus for adjusting power supply by second time relay, and Vib. is analog vibration state during the second time relay timing is connected.
2. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
The standard signal of described standard signal treatment circuit output is 0～5V or 0 ~ 10V voltage signal, or 0～20mA or 4～20mA current signal.
3. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
Described very first time relay is the circulating time relay of dual-delay.
4. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
Valve drives working power to be connected by the normally closed interlock of very first time relay conversion contact K1 and valve closing power supply terminal and second time relay of electric valve drive unit,
Valve drives working power to be connected by the normally open contact of very first time relay conversion contact K1 and valve opening power supply terminal, counter and second time relay of electric valve drive unit.
5. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
The second described time relay is the energising make delay breakaway-element time relay.
6. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
Described apparatus for adjusting power supply is can be with the frequency converter of standard signal adjusting in direct ratio.
7. electric valve drive unit switch life test unit according to claim 1, is characterized in that: described apparatus for adjusting power supply is can be with the AC voltage regulator of standard signal adjusting in direct ratio.
8. electric valve drive unit switch life test unit according to claim 1, is characterized in that:
Described apparatus for adjusting power supply is can be with the DC voltage regulator of standard signal adjusting in direct ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031601.4U CN203688188U (en) | 2014-01-20 | 2014-01-20 | Valve electric driving device switching life testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031601.4U CN203688188U (en) | 2014-01-20 | 2014-01-20 | Valve electric driving device switching life testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203688188U true CN203688188U (en) | 2014-07-02 |
Family
ID=51010075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031601.4U Expired - Fee Related CN203688188U (en) | 2014-01-20 | 2014-01-20 | Valve electric driving device switching life testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203688188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792483A (en) * | 2014-01-20 | 2015-07-22 | 山东富瑞工贸有限公司 | Valve electric driving device switching life testing device |
| CN105116319A (en) * | 2015-08-19 | 2015-12-02 | 江苏海事职业技术学院 | Solenoid valve fatigue tester applied to electrically controlled pump |
-
2014
- 2014-01-20 CN CN201420031601.4U patent/CN203688188U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792483A (en) * | 2014-01-20 | 2015-07-22 | 山东富瑞工贸有限公司 | Valve electric driving device switching life testing device |
| CN104792483B (en) * | 2014-01-20 | 2018-11-20 | 建湖县恒昌液压机械有限公司 | Electric valve driving device switching life test device |
| CN105116319A (en) * | 2015-08-19 | 2015-12-02 | 江苏海事职业技术学院 | Solenoid valve fatigue tester applied to electrically controlled pump |
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| 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: 20140702 Termination date: 20150120 |
|
| EXPY | Termination of patent right or utility model |