CN206930647U - A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform - Google Patents
A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform Download PDFInfo
- Publication number
- CN206930647U CN206930647U CN201720782310.2U CN201720782310U CN206930647U CN 206930647 U CN206930647 U CN 206930647U CN 201720782310 U CN201720782310 U CN 201720782310U CN 206930647 U CN206930647 U CN 206930647U
- Authority
- CN
- China
- Prior art keywords
- sulfur hexafluoride
- line detector
- accuracy calibration
- recharging type
- degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform, including：Sulfur hexafluoride decomposition product gas bottle, distributing instrument, Standard Gases pond, magnetic valve and sulfur hexafluoride on-line detector to be detected；The sulfur hexafluoride decomposition product gas bottle connects with the distributing instrument；The distributing instrument connects with the Standard Gases pond；The Standard Gases pond is connected by the magnetic valve with the sulfur hexafluoride on-line detector to be detected.The utility model embodiment is the platform suitable for recharging type sulfur hexafluoride electrical equipment catabolite on-line detector degree of accuracy calibration, foundation the utility model embodiment is provided as the platform suitable for recharging type sulfur hexafluoride electrical equipment catabolite on-line detector degree of accuracy calibration for the safe and stable operation of on-line detector, foundation is provided for the safe and stable operation of on-line detector, ensures the accuracy of recharging type sulfur hexafluoride on-line detector.
Description
Technical field
Sulfur hexafluoride on-line detector field is the utility model is related to, more particularly to a kind of recharging type sulfur hexafluoride is examined online
Survey instrument sampling degree of accuracy calibration platform.
Background technology
With developing rapidly for power industry, SF6Electrical equipment quantity is on the increase, to SF6The quality surveillance of gas is increasingly
It is important.Pure SF6Gas is a kind of preferable dielectric, but under the effect of the factors such as electric arc, spark discharge, high temperature,
SF6Gas easily ionizable decomposes, and its catabolite reacts with the moisture in electrical equipment, oxygen, generates SO2、H2S, the acid such as HF
Property material, and SF4、SOF2、SF2、SO2F2The material extremely strong etc. toxicity and corrosivity.Research shows, is made under different defect types
It is different into the species of the sulfur hexafluoride decomposition product of electrical equipment, content, throughput rate, proportionate relationship etc., inspection can be passed through
The detection of the component, especially various ingredients of sulfur hexafluoride decomposition product is surveyed, so as to judge the failure cause of electrical equipment, electric discharge
Horizontal, state of development and degree of danger etc..
The current online test method for sulfur hexafluoride electrical equipment gas due to higher ageing and by
Increasing concern, turn into the main method of sulfur hexafluoride electrical equipment gas detection.And it is to realize to sulfur hexafluoride gas
Effective detection, the detection of especially more decomposition components, on-line detector is required to the gas in sulfur hexafluoride electrical equipment
It is acquired post analysis.But, because electric power netting safe running code requires high to the security performance of sulfur hexafluoride electrical equipment
Year leakage rate is sought not above 0.5%, and the air chamber of sulfur hexafluoride electrical equipment is general all smaller (about 200L), therefore the big day of one's doom
The sampling number of sulfur hexafluoride on-line detector has been made, has caused most of on-line detector to be only capable of carrying out a month even some months
Once sample.And recharging type on-line detector due to can be achieved to collection gas recharge, greatly reduce gas leakage can
Energy property, its effective detection number can be significantly annual thousands of times, and recharging for gas will not cause gas in former sulfur hexafluoride air cell
The state of the change of bulk concentration, this pair and analyzing and diagnosing sulfur hexafluoride air cell undoubtedly has the function that important, therefore recharging type six
The use of sulfur fluoride on-line checking is more and more extensive.
To ensure the accuracy of recharging type sulfur hexafluoride on-line detector, it is both needed to carry out the inspection of the degree of accuracy before actual use
It is fixed, but at present, there is no can realize the platform that degree of accuracy calibration is carried out to recharging type sulfur hexafluoride on-line detector both at home and abroad.
Based on this, to adapt to the needs of sulfur hexafluoride electrical equipment on-line checking, exploitation is a set of to be applied to recharging type hexafluoro
Change the technology that the platform of sulphur electrical equipment catabolite on-line detector degree of accuracy calibration needs to solve for those skilled in the art
Problem.
Utility model content
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform,
Foundation is provided for the safe and stable operation of on-line detector.
The utility model embodiment provides a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform,
Including：Sulfur hexafluoride decomposition product gas bottle, distributing instrument, Standard Gases pond, magnetic valve and sulfur hexafluoride on-line detector to be detected；
The sulfur hexafluoride decomposition product gas bottle connects with the distributing instrument；
The distributing instrument connects with the Standard Gases pond；
The Standard Gases pond is connected by the magnetic valve with the sulfur hexafluoride on-line detector to be detected.
Preferably, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform provided by the utility model
Also include：First pressure regulating valve；
The sulfur hexafluoride decomposition product gas bottle is connected by the first pressure regulating valve with the distributing instrument.
Preferably, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform provided by the utility model
Also include：High-purity sulfur hexafluoride bottle, second pressure regulating valve；
High-purity sulfur hexafluoride bottle is connected by the second pressure regulating valve with the distributing instrument.
Preferably, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform provided by the utility model
Also include：Pressure gauge；
The pressure gauge connects with the Standard Gases pond.
Preferably, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform provided by the utility model
Also include：Vavuum pump；
One end of the vavuum pump connects with the Standard Gases pond.
Preferably, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform provided by the utility model
Also include：Waste gas bottle；
The waste gas bottle connects with the other end of the vavuum pump.
Preferably, the vavuum pump is vacuum diaphragm pump.
Preferably, the magnetic valve is unidirectional diaphragm electromagnetic valve.
Preferably, the Standard Gases pond is 316 stainless steel air chambers.
Preferably, the Standard Gases pond is connected by sensor with the pressure gauge.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment provides a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform,
Including：Sulfur hexafluoride decomposition product gas bottle, distributing instrument, Standard Gases pond, magnetic valve and sulfur hexafluoride on-line detector to be detected；
The sulfur hexafluoride decomposition product gas bottle connects with the distributing instrument；The distributing instrument connects with the Standard Gases pond；It is described
Standard Gases pond is connected by the magnetic valve with the sulfur hexafluoride on-line detector to be detected.The utility model embodiment is suitable
For the platform of recharging type sulfur hexafluoride electrical equipment catabolite on-line detector degree of accuracy calibration, for the peace of on-line detector
Entirely, stable operation provides foundation.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation that platform is calibrated in the sulfur hexafluoride degree of accuracy；
Fig. 2 is that the schematic flow sheet that platform carries out vacuum pumping is calibrated in the sulfur hexafluoride degree of accuracy；
Fig. 3 is that the schematic flow sheet that platform sample degree of accuracy detection is calibrated in the sulfur hexafluoride degree of accuracy；
Fig. 4 is that the schematic diagram that platform carries out vacuum pumping is calibrated in the sulfur hexafluoride degree of accuracy；
Fig. 5 is that the schematic diagram that platform carries out Standard Gases preparation is calibrated in the sulfur hexafluoride degree of accuracy；
Fig. 6 is that the schematic diagram that platform carries out degree of accuracy detection is calibrated in the sulfur hexafluoride degree of accuracy；
Wherein, marked in figure as follows：
1. high-purity distributing instrument of 2. 3. first pressure regulating valve of sulfur hexafluoride decomposition product gas bottle of sulfur hexafluoride bottle 4.
5. 6. Standard Gases pond of pressure gauge, 7. magnetic valve, 8. vavuum pump 11. of 9. waste gas bottle of sulfur hexafluoride on-line detector 10. to be checked
Second pressure regulating valve
Embodiment
The utility model embodiment discloses a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform,
Foundation is provided for the safe and stable operation of on-line detector.
Referring to Fig. 1, a kind of recharging type sulfur hexafluoride on-line detector sampling that the utility model embodiment provides is accurate
One embodiment of degree calibration platform, including：Sulfur hexafluoride decomposition product gas bottle 2, distributing instrument 4, Standard Gases pond 6, magnetic valve 7
With sulfur hexafluoride on-line detector 8 to be detected；
Sulfur hexafluoride decomposition product gas bottle 2 and distributing instrument 4 connect；
Distributing instrument 4 and Standard Gases pond 6 connect；
Standard Gases pond 6 is connected by magnetic valve 7 and sulfur hexafluoride on-line detector 8 to be detected.
Further, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model is flat
Platform also includes：First pressure regulating valve 3；
Sulfur hexafluoride decomposition product gas bottle 2 is connected by first pressure regulating valve 3 and distributing instrument 4.
Further, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model is flat
Platform also includes：High-purity sulfur hexafluoride bottle 1, second pressure regulating valve 11；
High-purity sulfur hexafluoride bottle 1 is connected by second pressure regulating valve 11 and distributing instrument 4.
Further, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model is flat
Platform also includes：Pressure gauge 5；
Pressure gauge 5 and Standard Gases pond 6 connect.
Further, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model is flat
Platform also includes：Vavuum pump 10；
One end and Standard Gases pond 6 of vavuum pump 10 connect.
Further, a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model is flat
Platform also includes：Waste gas bottle 9；
Waste gas bottle 9 connects with the other end of vavuum pump 10.
Further, vavuum pump 10 is vacuum diaphragm pump.
Further, magnetic valve 7 is unidirectional diaphragm electromagnetic valve.
Further, Standard Gases pond 6 is 316 stainless steel air chambers.
Further, Standard Gases pond 6 is connected by sensor and pressure gauge 5.
The utility model embodiment is accurate suitable for recharging type sulfur hexafluoride electrical equipment catabolite on-line detector
The platform of calibration is spent, foundation is provided for the safe and stable operation of on-line detector.
The above is the detailed description carried out to a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform,
, below will be with a concrete application scene to a kind of sampling degree of accuracy calibration of recharging type sulfur hexafluoride on-line detector for ease of understanding
The application of platform illustrates, and application examples includes：
Referring to Fig. 1, sulfur hexafluoride degree of accuracy calibration platform includes：Sulfur hexafluoride decomposition product gas bottle 2, high-purity hexafluoro
Change sulphur bottle 1, first pressure regulating valve 3, second pressure regulating valve 11, distributing instrument 4, Standard Gases pond 6, pressure gauge 5, magnetic valve 7, true
Empty pump 10, waste gas bottle 9, sulfur hexafluoride on-line detector 8 to be detected.
High-purity built-in high-purity sulfur hexafluoride gas of sulfur hexafluoride gas cylinder 1, gas purity requirement reach more than 99.9%, and gas
Pressure is more than 2Mpa；
High-purity sulfur hexafluoride gas cylinder 1 is connected with one end of second pressure regulating valve 11；
Catabolite under the conditions of 2 built-in sulfur hexafluoride background gas of sulfur hexafluoride decomposition product gas bottle (mainly includes
SO2、SO2F2、SOF2、H2S、CF4Deng) gas, and can be single gas or mixing gas according to calibration needs；
Sulfur hexafluoride decomposition product gas bottle 2 is connected with one end of first pressure regulating valve 3；
Pressure-regulating valve is mainly used in the gas in sulfur hexafluoride decomposition product gas bottle 2 and high-purity sulfur hexafluoride gas cylinder 1
Body is adjusted to low-pressure, and its inlet pressure ranges is 0~30Mp, and inlet pressure ranges are 0~1.5Mpa scopes, pressure-regulating valve
Including first pressure regulating valve 3, second pressure regulating valve 11；
First pressure regulating valve 3, second pressure regulating valve 11 are connected with one end of distributing instrument 4；
Distributing instrument 4 uses mass flowmenter distribution principle, by accurately configuring, can configure 10-8~10-2 content models
The gas enclosed, and the range of flow of gas is 0~1000mL；
Distribution 4 is connected with Standard Gases pond 6；
Standard Gases pond 6 is simulation sulfur hexafluoride air cell, and body of material is 316 stainless steel materials, interior deposited polytetrafluoroethylene (PTFE)
Material, to prevent absorption of the air chamber to sulfur hexafluoride gas, air chamber thickness is 3mm, volume size 2L, and highest pressure-bearing is
20MPa；
Standard Gases pond 6 is connected by gas circuit with vavuum pump 10；
Vavuum pump 10 is vacuum diaphragm pump, minimum vacuum pressure 1000pa；
Vavuum pump 10 is connected by pipeline with waste gas bottle 9, and waste gas bottle 9 is mainly used in collecting in slip detection platform system
Waste gas；
Standard Gases pond 6 is connected with magnetic valve 7；
Magnetic valve 7 is unidirectional diaphragm electromagnetic valve, and maximum pressure-bearing valve is 0.8MPa, caliber 3.2mm；
The other end of magnetic valve 7 is connected with sulfur hexafluoride on-line detector 8 to be detected；
Standard Gases pond 6 is connected by sensor with pressure gauge 5；
Pressure gauge 11 is used for the pressure of gas in examination criteria gas pond 4, and detection range is -0.1MPa~1MPa, minimum point
Spend for 0.0001Mpa.
A kind of calibration platform for the recharging type sulfur hexafluoride electrical equipment on-line detector degree of accuracy, its implementation process
Analysis method comprises the following steps：
According to the use range of sulfur hexafluoride on-line detector 8 to be checked, its typically complete the pressure of Standard Gases pond 6 for 0.4,0.5,
Detection under 0.6 and 0.7MPa pressure；This part is described by taking pressure 0.5Mpa as an example, and other pressure implement；
(1) initialize
Be initialized as platform begins preparing for state.
1. sulfur hexafluoride on-line detector 8 to be checked is connected by pipeline with magnetic valve 7；
2. opening pressure-regulating valve 3, setting outlet pressure is 1MPa；
3. opening distributing instrument 4, according to concentration gradient requirement to be detected, high-purity sulfur hexafluoride and sulfur hexafluoride standard is set
The range of flow of gas, preheating distributing instrument 30min；
4. opening vacuum-pump power supply, vavuum pump is preheated；
(2) platform vacuumizes (as shown by the arrows in Figure 4)
System, which vacuumizes, to be mainly used in removing the foreign gas in accuracy calibration device, to ensure gas degree of accuracy school
Accurate accuracy, its basic process are as shown in Figure 2：
1. setting the scheduled pressure value of vavuum pump 10 as 1000Pa, distributing instrument 4 is in stoppage in transit state, and magnetic valve 7 is in disconnected
Open state；
2. starting vavuum pump 10, until pressure reaches below 1000Pa in Standard Gases pond 6, vavuum pump is automatically stopped；
3. the rate of discharge for setting distributing instrument 4 is 0.5L/min, start distributing instrument；
4. when the pressure of pressure gauge 5, which is shown, reaches 0.5Mpa, stop distributing instrument 4；
5. repeat above flow 2 times；
(3) degree of accuracy detects
1. one pack system is calibrated
One-component calibration method such as Fig. 3：
A, by taking gas SO2/SF6 as an example, selection 5 is dense in the range of the component range of sulfur hexafluoride on-line detector 8 to be checked
Angle value, by distributing instrument 4 by the gas collecting prepared to Standard Gases pond 6, as shown by the arrows in Figure 5；
B, sulfur hexafluoride on-line detector 8 to be checked is connected with sulfur hexafluoride accuracy calibration device, starts hexafluoro to be checked
Change sulphur on-line detector 8, performs sampling, detect and the function such as recharge, 3 sample cyclics of completion, as shown in phantom in Figure 6；
C, the average value of computing equipment detected value, and calculate the error rate δ of component；
Wherein, δ is error rate；C is Concentration Testing average value corresponding with the preset concentration of gas；cSIt is preset dense for gas
Degree.
D, the repeatability of computing equipment detected value, the relative experimental standard deviation of each concentration point is calculated as follows；
In formula, s is standard deviation；ciFor i-th of detected value；N is sample cyclic number；csFor the preset concentration of gas.
2. multicomponent is calibrated
More component calibration method such as Fig. 3：
A, treating to choose 3 groups of multicomponent melting concn value gases in test examination instrument each component range ability, choosing 5 concentration ladders
Degree, by distributing instrument 4 by the gas collecting prepared to Standard Gases pond 6；
B, sulfur hexafluoride on-line detector 8 to be checked is connected with sulfur hexafluoride accuracy calibration device, starts hexafluoro to be checked
Change sulphur on-line detector 8, performs sampling, detect and the function such as recharge, 3 sample cyclics of completion, wherein, each sample cyclic
Operating process is identical, and a sample cyclic operating process includes：Gas in Standard Gases pond is sampled, recharged,
Sample, recharge, sample, detect, recharge, it is therefore an objective to so that the gas of detection is representative；
C, the average value of computing equipment detected value, and calculate the error rate δ of component；
Wherein, δ is error rate；C is Concentration Testing average value corresponding with the preset concentration of gas；cSIt is preset dense for gas
Degree.
D, the repeatability of computing equipment detected value, the relative experimental standard deviation of each concentration point is calculated as follows；
In formula, s is standard deviation；ciFor i-th of detected value；N is sample cyclic number；csFor the preset concentration of gas.
In the application example, recharging type sulfur hexafluoride on-line detector is electrically to be set dedicated for analysis detection sulfur hexafluoride
The special detector of standby middle sulfur hexafluoride decomposition product levels, need to be by gas to be detected in order to improve the accuracy rate of detection
Extract and detected from sulfur hexafluoride electrical equipment, recharge back former sulfur hexafluoride electrical equipment after the completion of detection again, with
Ensure the stabilization of Primordial Qi room air pressure.
Difference of the degree of accuracy between recharging type sulfur hexafluoride on-line detector detected value and actual concentrations.
It is flat to a kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration provided by the utility model above
Platform is described in detail, for those of ordinary skill in the art, according to the thought of the utility model embodiment, specific real
There will be changes in mode and application are applied, in summary, this specification content should not be construed as to the utility model
Limitation.
Claims (10)
- A kind of 1. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform, it is characterised in that including：Sulfur hexafluoride Catabolite gas bottle, distributing instrument, Standard Gases pond, magnetic valve and sulfur hexafluoride on-line detector to be detected；The sulfur hexafluoride decomposition product gas bottle connects with the distributing instrument；The distributing instrument connects with the Standard Gases pond；The Standard Gases pond is connected by the magnetic valve with the sulfur hexafluoride on-line detector to be detected.
- 2. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In, in addition to：First pressure regulating valve；The sulfur hexafluoride decomposition product gas bottle is connected by the first pressure regulating valve with the distributing instrument.
- 3. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In, in addition to：High-purity sulfur hexafluoride bottle, second pressure regulating valve；High-purity sulfur hexafluoride bottle is connected by the second pressure regulating valve with the distributing instrument.
- 4. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In, in addition to：Pressure gauge；The pressure gauge connects with the Standard Gases pond.
- 5. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In, in addition to：Vavuum pump；One end of the vavuum pump connects with the Standard Gases pond.
- 6. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 5, its feature exist In, in addition to：Waste gas bottle；The waste gas bottle connects with the other end of the vavuum pump.
- 7. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 6, its feature exist In the vavuum pump is vacuum diaphragm pump.
- 8. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In the magnetic valve is unidirectional diaphragm electromagnetic valve.
- 9. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 1, its feature exist In the Standard Gases pond is 316 stainless steel air chambers.
- 10. recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform according to claim 4, its feature exist In the Standard Gases pond is connected by sensor with the pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782310.2U CN206930647U (en) | 2017-06-30 | 2017-06-30 | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720782310.2U CN206930647U (en) | 2017-06-30 | 2017-06-30 | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206930647U true CN206930647U (en) | 2018-01-26 |
Family
ID=61353630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720782310.2U Active CN206930647U (en) | 2017-06-30 | 2017-06-30 | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206930647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918028A (en) * | 2018-05-15 | 2018-11-30 | 珠海三昌电器有限公司 | A kind of calibration SF6The system and its application method of gas leak detection apparatus precision |
-
2017
- 2017-06-30 CN CN201720782310.2U patent/CN206930647U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918028A (en) * | 2018-05-15 | 2018-11-30 | 珠海三昌电器有限公司 | A kind of calibration SF6The system and its application method of gas leak detection apparatus precision |
| CN108918028B (en) * | 2018-05-15 | 2020-04-28 | 珠海三昌电器有限公司 | Calibration SF6System for detecting precision of gas leakage detection device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107091905A (en) | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration method | |
| JP2005134382A (en) | Detection method for leakage from sealed cases attached to embedded energy storage system | |
| CN102680999B (en) | Automatic temperature/humidity compensation method of electrostatic collecting radon detection efficiency | |
| CN108827821B (en) | Device and method for rapidly analyzing hydrogen concentration in nuclear power station containment | |
| CN105136989B (en) | A kind of closed cycle tritium concentration monitoring system | |
| CN107976342A (en) | Sample sample-preparing system and sampling method for making sample | |
| CN102589809B (en) | Portable leak detector calibration system and method | |
| CN104865354A (en) | Formaldehyde gas detector verification device, system and method | |
| CN107290108A (en) | A kind of monotrysian type sulfur hexafluoride on-line detector slip detection method | |
| CN100593718C (en) | Method and device for detecting flow injection type dissolved oxygen meter | |
| CN206930647U (en) | A kind of recharging type sulfur hexafluoride on-line detector sampling degree of accuracy calibration platform | |
| CN211263289U (en) | Trace oxygen analyzer calibrating device | |
| CN105709622B (en) | Small-sized injector and particulate matter dilute acquisition system | |
| CN106066352A (en) | A kind of sulfur hexafluoride gas trace moisture content determinator and method thereof | |
| CN206096159U (en) | Online integrated analysis appearance of sulfur hexafluoride decomposition product | |
| CN106338588B (en) | A kind of sulfur hexafluoride on-line detector recharges rate testing calibration method and apparatus | |
| CN103529079B (en) | A kind of moisture content test macro and method of testing thereof | |
| CN202501952U (en) | Portable multifunctional vacuum calibrating device | |
| CN109916568A (en) | Electric machine controller sealing propertytest system, device and method | |
| CN202420769U (en) | Portable calibrating device of leak detector | |
| CN110187011B (en) | Simulation experiment device and simulation method for dynamic adsorption and desorption research | |
| CN109323953A (en) | Method for measuring elemental sulfur solubility in sulfur-containing gas | |
| CN209589978U (en) | A kind of hydrogen meter detection device | |
| CN104049067B (en) | A kind of method measuring inorganic salts in lithium battery electrolytes | |
| CN206161625U (en) | Sulfur hexafluoride on -line detector returns and fills rate detection and calibration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |