CN205538952U - Novel closed electrostatic spark sensitivity tester - Google Patents
Novel closed electrostatic spark sensitivity tester Download PDFInfo
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- CN205538952U CN205538952U CN201620295548.8U CN201620295548U CN205538952U CN 205538952 U CN205538952 U CN 205538952U CN 201620295548 U CN201620295548 U CN 201620295548U CN 205538952 U CN205538952 U CN 205538952U
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- stylus
- airtight
- sample
- vacuum switch
- pressure gauge
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Abstract
The utility model provides a novel closed electrostatic spark sensitivity tester, the package rubbing board utmost point, sample, stylus, airtight room, high voltage power supply, high -voltage vacuum switch, high voltage capacitor, electrostatic voltmeter and the capsule pressure gauge of firing, the airtight indoor portion bottom installation polar plate that fires, place the sample on the plate, the stylus aim at the sample and with the sample contact, stylus and plate respectively through wire intercommunication way airtight fire outdoor, capsule pressure gauge fire indoor portion intercommunication with airtight, high -voltage vacuum switch switch before, the high voltage capacitor both ends meet high voltage power supply and electrostatic voltmeter, high -voltage vacuum switch switches over the back, and plate and stylus are connected to the high voltage capacitor both ends. The utility model discloses simple to operate, it is accurate to measure.
Description
Technical field
The present invention relates to a kind of electric spark sensitivity tester, for priming system medicament, firework medicament, explosive wastewater, cigarette
The electric spark sensitivity of flower blast medicament is measured.
Background technology
Electric spark sensitivity be examination priming system medicament, firework medicament, explosive wastewater, fireworks blast medicament to its produce,
Transport and storage condition under the conditions of electrostatic accidental discharge effect time safe coefficient, its measurement result is with 50% firing voltage
Represent with 50% firing energy, the number that these measurement results are protected frequently as product antistatic parameter designing and static electricity on human body
According to support.Present stage, whether it is in airtight cavity according to sparking electrode, the electrode knot of priming system electrostatic sensitivity test
Structure can be divided into open and closed." GJB5891.27-2006 priming system pharmacy test method is quiet for open Primary Reference
Spark sensitivity is tested ", closed Primary Reference " QJ1469-88 composite solidpropellant and explosive wastewater electrostatic spark thereof
Sensitivity test method " carry out.Wherein, Fig. 1 is shown in by the discharge line schematic diagram of closed electric spark sensitivity method of testing.
The pressure-display device of this closed electrode structure is U-shaped capillary tube, and internal diameter is 2mm, in actual use,
U-shaped capillary tube has a following defect:
Reading difficulty: owing to U-shaped capillary tube is by being bent into after high-temperature heating, this technique inevitably results in
Bending place internal diameter size is less than 2mm, and the uneven of this internal diameter size cause the capillary tube effect at pressed gas
Under, both sides liquid level lifting height and falling head are inconsistent, if wanting accurate characterization measured pressure value, then just
To read rising value and the drop-out value of liquid level, it is generally the case that tested sample is standing a static discharge simultaneously
After, the pressure of airtight cavity changes can only make liquid level rising 2mm to 3mm, the least fluctuation distance, if
To read rising value and drop-out value simultaneously, it is clear that be relatively difficult.
Measure the most directly perceived: this U-shaped capillary tube is the force value indirectly being characterized closed chamber by the change of liquid level, and
The size of force value can not be read intuitively.
Operation complexity: this device needs to inject a certain amount of water in capillary tube before use, and generally this process operation rises
Come and remarkable, globule wall built-up and bubble phenomenon usually occur, need to through repeatedly inject and coordinate zeroing device use,
After repeatedly shake, guarantee two ends liquid level is the most fair.
Safeguard inconvenience: capillary tube is made up of glass, usually can only be connected with latex tubing with extraneous joint.Latex tubing uses
In two to three months arise that be full of cracks, harden and the phenomenon such as gas leakage, be at this moment accomplished by changing.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of novel closed electric spark sensitivity tester,
Using capsule pressure gauge as pressure measxurement display device, easy for installation, it is accurate to measure.
The technical solution adopted for the present invention to solve the technical problems is: includes plate electrode, sample, stylus, airtight fire
Room, high voltage power supply, high-pressure vacuum switch, high-voltage capacitor, electrostatic voltmeter and capsule pressure gauge.
Pole plate is installed in the described airtight chamber interior bottom that fires, and plate electrode places sample, described stylus alignment sample and
Not contacting with sample, stylus and plate electrode fire outdoor by wire communication channel is airtight respectively；Described capsule pressure gauge with
The airtight chamber interior that fires connects；Before described high-pressure vacuum switch switching, high-voltage capacitor two ends and connect high voltage power supply and
Electrostatic voltmeter；After high-pressure vacuum switch switching, high-voltage capacitor two ends connect plate electrode and stylus.
Described capsule pressure gauge is threadeded with the airtight room of firing.
The invention has the beneficial effects as follows:
(1) measurement is accurate, type selecting is convenient.The accuracy of measurement result and the range of measuring instruments and precision have directly pass
System, owing to the capsule pressure gauge marketization is the most highly developed, the size of pressure after can getting angry according to sample, it is suitable to select
Range and the Pressure gauge of precision.
(2) easy for installation, it is simple to safeguard.Capsule pressure gauge is connected with closed chamber by copper tube, the most all passes through
M10 is threaded, does not haves latex tubing be full of cracks, hardens and the phenomenon such as gas leakage.
(3) accuracy of reading.Measured pressure value directly displays out by capsule pressure gauge, the most intuitively.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art；
Fig. 2 is the structural representation of the present invention；
In figure, 1-plate electrode, 2-sample, 3-stylus, the airtight cell that fires of 4-, 5-pressure-display device, 6-manometer is adjusted
Zero device, E-high voltage power supply, K-high-pressure vacuum switch, C-high-voltage capacitor, V-electrostatic voltmeter.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following embodiment.
Capsule pressure gauge is threaded connection by the present invention with closed chamber container, and then static discharge of display intuitively
After force value in closed chamber.The static discharge circuit schematic diagram of this novel closed electric spark sensitivity tester
See Fig. 2.
As in figure 2 it is shown, the present invention includes plate electrode 1, sample 2, stylus 3, airtight fires room 4, high voltage power supply E, high pressure
Vacuum switch K, high-voltage capacitor C, electrostatic voltmeter V and pressure-display device 5, described pressure-display device 5 is adopted
Use capsule pressure gauge.
Capsule pressure gauge, also known as micromanometer, is adapted to the low micro-pressure of liquid, gas and steam.Capsule pressure gauge uses
Bellows is as the sensing element measuring slight pressure.The operation principle of this instrument based on ripple bellows at measured medium
Under pressure effect, its free end produces corresponding elastic deformation, then through the transmission of gear drive and amplified,
Indicate in dial plate by by measured value with the pointer being fixed on gear shaft, possess balancing controls, facilitate adjustment zero
Position.
Pole plate is installed in the described airtight chamber interior bottom that fires, and plate electrode places sample, described stylus alignment sample and
Not contacting with sample, stylus and plate electrode fire outdoor by wire communication channel is airtight respectively；Described capsule pressure gauge with
The airtight chamber interior that fires connects.
Under described high-pressure vacuum switch controls, described high voltage power supply two ends also connect high-voltage capacitor and statvolt
Meter, charges for high-voltage capacitor, is measured the voltage at high-voltage capacitor two ends by electrostatic voltmeter；High-voltage capacitor fills
After electricity completes, high-pressure vacuum switch switches, and high-voltage capacitor two ends connect plate electrode and stylus, stylus by wire respectively
And discharge between plate electrode, light sample, capsule pressure gauge accurately measures the airtight change value of pressure firing indoor.
Claims (2)
1. a novel closed electric spark sensitivity tester, including plate electrode, sample, stylus, airtight fire room,
High voltage power supply, high-pressure vacuum switch, high-voltage capacitor, electrostatic voltmeter and capsule pressure gauge, it is characterised in that:
Pole plate is installed in the described airtight chamber interior bottom that fires, and plate electrode places sample, described stylus alignment sample and not
Contacting with sample, stylus and plate electrode fire outdoor by wire communication channel is airtight respectively；Described capsule pressure gauge with
The airtight chamber interior that fires connects；Before described high-pressure vacuum switch switching, high-voltage capacitor two ends also connect high voltage power supply
And electrostatic voltmeter；After high-pressure vacuum switch switching, high-voltage capacitor two ends connect plate electrode and stylus.
Novel closed electric spark sensitivity tester the most according to claim 1, it is characterised in that: described
Capsule pressure gauge is threadeded with the airtight room of firing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295548.8U CN205538952U (en) | 2016-04-11 | 2016-04-11 | Novel closed electrostatic spark sensitivity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295548.8U CN205538952U (en) | 2016-04-11 | 2016-04-11 | Novel closed electrostatic spark sensitivity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538952U true CN205538952U (en) | 2016-08-31 |
Family
ID=56791056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620295548.8U Expired - Fee Related CN205538952U (en) | 2016-04-11 | 2016-04-11 | Novel closed electrostatic spark sensitivity tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536766A (en) * | 2020-04-17 | 2020-08-14 | 中国兵器工业火炸药工程与安全技术研究院 | Automatic detection device for saturated electrostatic charge amount in hot air drying process of energetic material |
| CN113376210A (en) * | 2021-05-28 | 2021-09-10 | 襄阳新舟自动化科技有限公司 | Electrostatic loading quick drying device |
-
2016
- 2016-04-11 CN CN201620295548.8U patent/CN205538952U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536766A (en) * | 2020-04-17 | 2020-08-14 | 中国兵器工业火炸药工程与安全技术研究院 | Automatic detection device for saturated electrostatic charge amount in hot air drying process of energetic material |
| CN111536766B (en) * | 2020-04-17 | 2021-07-16 | 中国兵器工业火炸药工程与安全技术研究院 | Automatic detection device for saturated electrostatic charge amount in hot air drying process of energetic material |
| CN113376210A (en) * | 2021-05-28 | 2021-09-10 | 襄阳新舟自动化科技有限公司 | Electrostatic loading quick drying device |
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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: 20160831 Termination date: 20170411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |