CN204177784U - Power gas and carrier gas improve the device of purity inert gas two-in-onely - Google Patents
Power gas and carrier gas improve the device of purity inert gas two-in-onely Download PDFInfo
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- CN204177784U CN204177784U CN201420322776.0U CN201420322776U CN204177784U CN 204177784 U CN204177784 U CN 204177784U CN 201420322776 U CN201420322776 U CN 201420322776U CN 204177784 U CN204177784 U CN 204177784U
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Abstract
A kind of power gas and carrier gas improve the device of purity inert gas two-in-onely, it is arranged at and at least a set of oxygen analyzer parallel with one another of inert gas bus-bar UNICOM and elemental analyser detection system, arrange separately between inert gas bus-bar, accident forced draft and exhaust system is provided with between inert gas bus-bar, separate between inert gas bus-bar with between instrumentation, between instrumentation, be provided with alarm; Accident forced draft and exhaust system and alarm are interlocked; Accident forced draft is communicated with inert gas leak sensor with exhaust system; Inert gas bus-bar and inert gas source UNICOM; Inert gas bus-bar by three-way pipe respectively with power gas entrance, the inert gas purge device UNICOM of oxygen analyzer; Inert gas purge device respectively with the carrier gas inlet of oxygen analyzer, the air intake opening UNICOM of elemental analyser.The utility model can guarantee the stability of oxygen analyzer and elemental analyser test, and security is high, and the energy and resource rational utilization, realize energy-saving and emission-reduction.
Description
Technical field
The utility model relates to a kind of device improving helium or argon inert gas purity, its power gas and carrier gas two-in-one, the device of the particularly helium of field of analytic instrument or argon inert gas purification.
Background technology
In the prior art, adopt single inert gas bottle graft separate unit assay instrument to carry out analysis to measure, oxygen analyzer and elemental analyser only access one bottle of helium or argon inert gas respectively, and the inert gas newly purchased will access oxygen analyzer respectively and elemental analyser is analyzed.
Prior art existing problems are, because of buy helium or argon inert gas impure, if or pressure fails to meet the demand of oxygen analyzer and elemental analyser, just easily cause fluctuation and the error of oxygen analyzer, elemental analyser determination data, frequent factor data inaccurate and impact is produced, the production that even needs to stop searches problem, and continues existing regenerative ratio after problem to be solved.Therefore, the frequency changing helium or argon inert gas is higher, once run into helium or argon inert gas is impure or pressure do not reach the fluctuation of determination data when causing and error larger time, must people be arranged again more to renew helium or argon inert gas at once, and having abundant residues helium or argon inert gas to utilize in the helium changed or argon inert gas bottle, waste is large.
Existing helium or argon inert gas bottle are placed between the instrument such as oxygen analyzer, elemental analyser of operated by personnel, dust is not entered in order to ensure oxygen analyzer, elemental analyser etc., sealing between instrument is better, belong to finite space operation, ventilating system is bad, once leaking appears in helium or argon inert gas, staff easily suffocates, poisoning, even dead, do not meet the requirement of safety in production.
In prior art, apparatus for determination of oxygen often adopts the compressed air gas of nitrogen or purification, does carrier gas with helium or argon gas.Because power gas is different with carrier gas, cause the pipeline of equipment many, complex structure, cost is high, operation inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of device improving helium or argon inert gas purity, can guarantee the stability of oxygen analyzer and elemental analyser test.
Another one object of the present utility model is to provide a kind of device improving helium or argon inert gas purity, its power gas and carrier gas two-in-one, equipment pipe significantly reduces, structure plan, cost reduce, easy to operate.
For this reason, the utility model provides a kind of device improving helium or argon inert gas purity, it is characterized in that, it is arranged at least a set of oxygen analyzer parallel with one another and elemental analyser detection system, each cover oxygen analyzer and elemental analyser detection system and helium or argon inert gas bus-bar UNICOM, arrange separately between helium or argon inert gas bus-bar, accident forced draft and exhaust system is provided with between helium or argon inert gas bus-bar, separate between helium or argon inert gas bus-bar with between instrumentation, between instrumentation, be provided with alarm; Accident forced draft and exhaust system and alarm are interlocked; Accident forced draft is communicated with helium or argon inert gas leak sensor with exhaust system; Helium or argon inert gas bus-bar and helium or argon inert gas source UNICOM; Helium or argon inert gas bus-bar by three-way pipe respectively with the power gas entrance of oxygen analyzer, helium or argon inert gas clarifier UNICOM; Helium or argon inert gas clarifier respectively with the carrier gas inlet of oxygen analyzer, the air intake opening UNICOM of elemental analyser.
Preferably, also comprise following additional technical feature at least one of them:
Filtration tank in clarifier is provided with O in helium or argon inert gas
2, N
2, H
2, H
2o, CO, CO
2, CH
4the tripping device of trace impurity;
Helium or argon inert gas clarifier are by reduction valve and the carrier gas inlet of pressure-indication means and oxygen analyzer, the air intake opening UNICOM of elemental analyser;
Helium or argon inert gas bottle are by pressure-indication means, reduction valve, stop valve and helium or argon inert gas bus-bar UNICOM;
Filtration tank in clarifier comprises purification plant and purification devices; And
The cleanser that filtration tank adopts is getter, and getter is non-evaporable zirconium aluminium 16.
Preferably, pressure-indication means is tensimeter.
Preferably, helium or argon inert gas source are communicated with a bull helium or argon inert gas bus-bar, and each head of this helium or argon inert gas bus-bar is by a right-angle valve and an anti-misloading nipple and a helium or argon inert gas bottle UNICOM; Each helium or argon inert gas bottle are divided at least two groups, and often group helium or argon inert gas bottle have at least one helium or argon inert gas bottle; For each group helium or argon inert gas bottle, helium or argon inert gas bus-bar are provided with a pressure indicator; Each group helium or argon inert gas bottle are by the first pipe break valve, pressure indicator, decompressor, second pipe stop valve and helium or argon inert gas supply pipe UNICOM; Also a pipe break valve is provided with between each group of helium or argon inert gas bottle; One end of helium or argon inert gas supply pipe and helium or argon inert gas clarifier UNICOM, other one end of helium or argon inert gas supply pipe is by the power gas entrance UNICOM of pressure indicator, decompressor, pipe break valve and oxygen analyzer; The air intake opening UNICOM of the outlet of helium or argon inert gas clarifier and the carrier gas inlet of oxygen analyzer and elemental analyser.
Preferably, pipeline uses the decompressors of two series connection, one of them is with decompressor, and another is decompressor for subsequent use.
Preferably, described decompressor is reduction valve.
Preferably, described bull helium or argon inert gas bus-bar are 8 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 4 helium or argon inert gas bottle;
Described bull helium or argon inert gas bus-bar are 6 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 3 helium or argon inert gas bottle; Or
Described bull helium or argon inert gas bus-bar are 4 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 2 helium or argon inert gas bottle.
Preferably, oxygen analyzer is apparatus for determination of oxygen.
Preferably, elemental analyser is spectrometer.
According to the utility model, helium or argon inert gas obtain purification, and elemental analyser and oxygen analyzer are in calibration and test sample, and oxygen analyzer and elemental analyser make the stability of service pressure greatly improve, and can guarantee normally carrying out of production.
According to the utility model, separate between helium or argon inert gas bus-bar with between instrumentation, arrange separately between helium or argon inert gas bus-bar, set up accident exhaust system and alarm, accident exhaust system and alarm are interlocked; Once occur that helium or argon inert gas leak, the exhaust system of startup accident immediately, strengthens the forced draft between helium or argon inert gas bus-bar and air draft, guarantees the job safety of operating personnel between instrument, to meet the requirement of safety in production.
According to the utility model, by setting up a helium or argon inert gas clarifier and one group of helium or argon inert gas bus-bar, and helium or argon inert gas bus-bar is proper use of, solve the stability problem of oxygen analyzer and elemental analyser test, meet the needs of production.
According to the utility model, the overbottom pressure of residue helium or argon inert gas can be made full use of, greatly reduce production cost, improve the Appropriate application of the energy and resource, achieve the object of energy-saving and emission-reduction.
According to the utility model, power gas and carrier gas achieve two-in-one, and equipment pipe significantly reduces, structure plan, and cost reduces, easy to operate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the device according to raising purity inert gas of the present utility model.
Fig. 2 is the device schematic diagram according to raising inert gas utilization factor of the present utility model.
Embodiment
In FIG, Reference numeral 2 represents stop valve, and Reference numeral 3 represents reduction valve, Reference numeral 4 represents tensimeter.In one embodiment, the device improving helium or argon inert gas purity adopts a set of 8 helium or argon inert gas bus-bar 101, it overlaps oxygen analyzer with 8 respectively and ultimate analysis instrument system is connected, and illustrate only first set oxygen analyzer and ultimate analysis instrument system 10 and last a set of oxygen analyzer and ultimate analysis instrument system 80 in Fig. 1.Particularly, in order to ensure the stability that oxygen analyzer and elemental analyser are tested, often cover oxygen analyzer and ultimate analysis instrument system have set up a helium or argon inert gas clarifier 15,85 etc.
Every bottle of helium or argon inert gas 100 are accessed a set of 8 helium or argon inert gas bus-bar 101 respectively, three-way pipe is passed through by bus-bar 101 helium out or argon inert gas, a part is delivered directly to oxygen analyzer 16,86 start strength, another part is transported to helium or argon inert gas clarifier 15,85 purifies, and is separated the O in helium or argon inert gas by the filtration tank in clarifier 15,85
2, N
2, H
2, H
2o, CO, CO
2, CH
4deng trace impurity, the helium after purification or argon inert gas again by three-way pipe, then are transported to oxygen analyzer and elemental analyser respectively.The pure helium filtered through helium or argon inert gas clarifier or argon inert gas one access oxygen analyzer 16,86 carry out the mensuration of oxygen do carrier gas, carry out spectral analysis in other end access elemental analyser 17,87.
In one embodiment, the concrete control techniques of the filtration tank in clarifier 15,85 is: adopt purification to add purified double process, utilize non-evaporable zirconium aluminium 16 getter to be cleanser, at a certain temperature, getter can with the trace impurity O in helium or argon inert gas
2, N
2, H
2, H
2o, CO, CO
2, CH
4etc. form stable compound or solid solution, thus reach the object to helium or argon inert gas purification.
In such embodiments, elemental analyser and oxygen analyzer, in calibration and test sample, substantially increase the stability of helium or argon inert gas pressure, can meet the needs of production.
As shown in Figure 2, in one embodiment, a set of 8 helium or argon inert gas bus-bar 100 are divided into two groups (often organizing 4 heads), often group separately uses separately, helium or argon inert gas bottle 11,12,13,14 are first group, and helium or argon inert gas bottle 21,22,23,24 are second group.
Each helium or argon inert gas bottle are respectively equipped with anti-misloading nipple 2 and a right-angle valve 3, and by anti-misloading nipple 2 and right-angle valve 3 with helium or argon inert gas bus-bar 100 UNICOM.
A pressure indicator is provided with, such as tensimeter 4 between the helium of first group of helium or argon inert gas bottle 11,12,13,14 or argon inert gas bottle 11,12 and helium or argon inert gas bottle 13,14.Also a pressure indicator is provided with, such as tensimeter 4 between the helium of second group of helium or argon inert gas bottle 21,22,23,24 or argon inert gas bottle 21,22 and helium or argon inert gas bottle 23,24.
First group of helium or argon inert gas bottle 11,12,13,14 are by the first pipe break valve 6, pressure indicator 4, decompressor 5, second pipe stop valve 6 and helium or argon inert gas supply pipe 200 UNICOM.Second group of helium or argon inert gas bottle 21,22,23,24 are by the first pipe break valve 6, pressure indicator 4, decompressor 5, second pipe stop valve 6 and helium or argon inert gas supply pipe 200 UNICOM.
Also a pipe break valve 6 is provided with between first group of helium or argon inert gas bottle 11,12,13,14 and second group of helium or argon inert gas bottle 21,22,23,24.
Each group of helium or argon inert gas bottle are by the decompressor 5 of the first pipe break valve 6, two pieces series connection, second pipe stop valve 6 and helium or argon inert gas supply pipe 200 UNICOM.An embodiment of decompressor 5 is reduction valve.As shown in Figure 1, continuously adopt two reduction valve, mainly consider the continuity of safety problem and production, one with, another is for subsequent use, if decompressor broken, another decompressor can be enabled immediately.
One end of helium or argon inert gas supply pipe 200 and helium or argon inert gas clarifier 7 UNICOM, other one end of helium or argon inert gas supply pipe 200 is by the power gas entrance UNICOM of pressure indicator 4, decompressor 5, pipe break valve 6 and oxygen analyzer 8.
The outlet of helium or argon inert gas clarifier 7 and the air intake opening UNICOM determining oxygen carrier gas inlet and elemental analyser 9 of oxygen analyzer 8.
When first group of first bottle of helium or argon inert gas 11 pressure do not reach soon, open second bottle of helium or argon inert gas 12, first bottle of helium or argon inert gas 11 immediately and continue use, until as far as possible with empty; When second bottle of helium or argon inert gas 12 do not reach pressure soon, open the 3rd bottle of helium or argon inert gas 13, second bottle of helium or argon inert gas 12 and continue use, until as far as possible with empty; When the 3rd bottle of helium or argon inert gas 13 do not reach pressure soon, open the 4th bottle of helium or argon inert gas the 14, three bottle of helium or argon inert gas 13 and continue use, until as far as possible with empty; When the 4th bottle of helium or argon inert gas 14 do not reach pressure soon, open second group of first bottle of helium or argon inert gas 21, first group of the 4th bottle of helium or argon inert gas 14 and continue use, until as far as possible with empty; After first group of helium or argon inert gas bottle 11,12,13,14 exhaust, change four bottles of new helium or argon inert gas.When second group of first bottle of helium or argon inert gas 21 do not reach pressure soon, open second group of second bottle of helium or argon inert gas 22, first group of first bottle of helium or argon inert gas 21 and continue use, until as far as possible with empty; When second group of second bottle of helium or argon inert gas 22 do not reach pressure soon, open second group of the 3rd bottle of 23 helium or argon inert gas, second group of second bottle of helium or argon inert gas 22 continue use, until as far as possible with empty; When second group of the 3rd bottle of 23 helium or argon inert gas do not reach pressure soon, open second group of the 4th bottle of helium or argon inert gas 24, second group of the 3rd bottle of helium or argon inert gas 23 and continue use, until as far as possible with empty; When second group of the 4th bottle of helium or argon inert gas 24 do not reach pressure soon, open first group of first bottle of helium or argon inert gas 11, second group of the 4th bottle of helium or argon inert gas 24 and continue use, until as far as possible with empty; After second group of helium or argon inert gas 21,22,23,24 exhaust, change four bottles of new helium or argon inert gas.Constantly recycle.
In the embodiment shown in Figure 2, have 8 anti-misloading nipple, 8 right-angle valves, 3 pieces of tensimeters, 5 reduction valve, 6 pipe break valves, each several part is formed by connecting by pipeline.
In the another one embodiment of the device according to raising helium of the present utility model or argon inert gas utilization factor, described bull helium or argon inert gas bus-bar are 4 helium or argon inert gas bus-bar, helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 2 helium or argon inert gas bottle.In the another one embodiment of the device according to raising helium of the present utility model or argon inert gas utilization factor, described bull helium or argon inert gas bus-bar are 6 helium or argon inert gas bus-bar, helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 3 helium or argon inert gas bottle.
By using helium or argon inert gas bus-bar, substantially increase the stability of helium or argon inert gas pressure and the utilization factor of helium or argon inert gas, avoid due to the instability of the pressure of helium or argon inert gas and affect production, the labour intensity simultaneously also reducing employee, the labour productivity that improve employee and improve the security that helium or argon inert gas use.
" when the insufficient pressure of the described last bottle helium of last group or argon inert gas, open next bottle of helium or the argon inert gas of described last group immediately, and the last bottle helium of last group or argon inert gas continue to use, until as far as possible with empty " and do not mean that: the helium that the utility model two is adjacent or argon inert gas bottle keep so a kind of relation, that is: the high pressure in " next helium or argon inert gas bottle " can promote " previous helium or argon inert gas bottle " and discharge remnants', become the gas of low pressure, discharge a little helium or argon inert gas to help " previous helium or argon inert gas bottle " more, thus improve helium or argon inert gas utilization factor.
Former helium or argon inert gas bottle are directly connected on oxygen analyzer and elemental analyser and use, the pressure of helium or argon inert gas is lower than below 5MPa, helium or argon inert gas pressure transient, oxygen analyzer and elemental analyser test data is caused to fluctuate very large, unstable, abnormal, now must change helium or argon inert gas, the frequency changing helium or argon inert gas is higher, causes energy dissipation;
Existing helium or argon inert gas bottle group bus-bar are directly received on elemental analyser and oxygen analyzer with parallel way and are used, with " when the insufficient pressure of the described last bottle helium of last group or argon inert gas, open next bottle of helium or the argon inert gas of described last group immediately, and the last bottle helium of last group or argon inert gas continue to use, until as far as possible with sky " mode uses helium or argon inert gas, helium or argon inert gas pressure can all-the-time stable at more than 5MPa, helium or argon inert gas pressure highly stable, oxygen analyzer and the ripple disable of elemental analyser test data, stable, without exception, and the helium changed or the overbottom pressure of argon inert gas can be reduced to about 0.5MPa, and (that is: the last bottle helium of last group or argon inert gas continue to use, until as far as possible with empty), now do not affect oxygen analyzer and elemental analyser data test, this takes full advantage of helium remaining in helium or argon inert gas bottle or the overbottom pressure of argon inert gas.The utility model adopts helium or argon inert gas bus-bar air feed this area customary means absolutely not of multiple grouping.
The each helium of the utility model or argon inert gas bottle are in parallel, can independent operation, when the gas of a certain gas cylinder closes this bottle valve with to time about 0.5MPa (with empty), open next bottle of helium or argon inert gas in time, and this Renewal process, the pressure of helium or argon inert gas also has no effect, thus does not affect the data determination of oxygen analyzer and elemental analyser, does not also affect production.
In the utility model, helium or the preferred helium of argon inert gas or argon gas (helium price is very expensive, and argon gas is more relatively cheap, therefore more preferably uses argon gas); The preferred apparatus for determination of oxygen of oxygen analyzer; Elemental analyser preferred light spectrometer.
According to the utility model, power gas and carrier gas unite two into one, and pipeline interconnects, and merge and use, determination data is more stable.
Claims (9)
1. a power gas and carrier gas improve the device of helium or argon inert gas purity two-in-onely, it is characterized in that, it is arranged at least a set of oxygen analyzer parallel with one another and elemental analyser detection system, each cover oxygen analyzer and elemental analyser detection system and helium or argon inert gas bus-bar UNICOM, arrange separately between helium or argon inert gas bus-bar, accident forced draft and exhaust system is provided with between helium or argon inert gas bus-bar, separate between helium or argon inert gas bus-bar with between instrumentation, between instrumentation, be provided with alarm; Accident forced draft and exhaust system and alarm are interlocked; Accident forced draft is communicated with helium or argon inert gas leak sensor with exhaust system; Helium or argon inert gas bus-bar and inert gas source UNICOM; Helium or argon inert gas bus-bar by three-way pipe respectively with the power gas entrance of oxygen analyzer, helium or argon inert gas clarifier UNICOM; Helium or argon inert gas clarifier respectively with the carrier gas inlet of oxygen analyzer, the air intake opening UNICOM of elemental analyser.
2. device as claimed in claim 1, is characterized in that, also comprise following additional technical feature at least one of them:
Filtration tank in clarifier is provided with O in helium or argon inert gas
2, N
2, H
2, H
2o, CO, CO
2, CH
4the tripping device of trace impurity;
Helium or argon inert gas clarifier are by reduction valve and the carrier gas inlet of pressure-indication means and oxygen analyzer, the air intake opening UNICOM of elemental analyser;
Helium or argon inert gas bottle are by pressure-indication means, reduction valve, stop valve and helium or argon inert gas bus-bar UNICOM;
Filtration tank in clarifier comprises purification plant and purification devices; And
The cleanser that filtration tank adopts is getter, and getter is non-evaporable zirconium aluminium 16.
3. device as claimed in claim 2, it is characterized in that, pressure-indication means is tensimeter.
4. device as claimed in claim 1 or 2, it is characterized in that, helium or argon inert gas source are communicated with a bull helium or argon inert gas bus-bar, and each head of this helium or argon inert gas bus-bar is by a right-angle valve and an anti-misloading nipple and a helium or argon inert gas bottle UNICOM; Each helium or argon inert gas bottle are divided at least two groups, and often group helium or argon inert gas bottle have at least one helium or argon inert gas bottle; For each group helium or argon inert gas bottle, helium or argon inert gas bus-bar are provided with a pressure indicator; Each group helium or argon inert gas bottle are by the first pipe break valve, pressure indicator, decompressor, second pipe stop valve and helium or argon inert gas supply pipe UNICOM; Also a pipe break valve is provided with between each group of helium or argon inert gas bottle; One end of helium or argon inert gas supply pipe and helium or argon inert gas clarifier UNICOM, other one end of helium or argon inert gas supply pipe is by the power gas entrance UNICOM of pressure indicator, decompressor, pipe break valve and oxygen analyzer; The air intake opening UNICOM of the outlet of helium or argon inert gas clarifier and the carrier gas inlet of oxygen analyzer and elemental analyser.
5. device as claimed in claim 1, is characterized in that, pipeline uses the decompressors of two series connection, and one of them is with decompressor, and another is decompressor for subsequent use.
6. device as claimed in claim 5, it is characterized in that, described decompressor is reduction valve.
7. device as claimed in claim 4, is characterized in that,
Described bull helium or argon inert gas bus-bar are 8 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 4 helium or argon inert gas bottle;
Described bull helium or argon inert gas bus-bar are 6 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 3 helium or argon inert gas bottle; Or
Described bull helium or argon inert gas bus-bar are 4 helium or argon inert gas bus-bar, and helium or argon inert gas bottle are divided into 2 groups, and often group helium or argon inert gas bottle have 2 helium or argon inert gas bottle.
8. device as claimed in claim 4, it is characterized in that, oxygen analyzer is apparatus for determination of oxygen.
9. device as claimed in claim 4, it is characterized in that, elemental analyser is spectrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322776.0U CN204177784U (en) | 2014-06-17 | 2014-06-17 | Power gas and carrier gas improve the device of purity inert gas two-in-onely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420322776.0U CN204177784U (en) | 2014-06-17 | 2014-06-17 | Power gas and carrier gas improve the device of purity inert gas two-in-onely |
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| Publication Number | Publication Date |
|---|---|
| CN204177784U true CN204177784U (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420322776.0U Expired - Fee Related CN204177784U (en) | 2014-06-17 | 2014-06-17 | Power gas and carrier gas improve the device of purity inert gas two-in-onely |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931840A (en) * | 2022-06-02 | 2022-08-23 | 散裂中子源科学中心 | Helium three-gas purification system |
-
2014
- 2014-06-17 CN CN201420322776.0U patent/CN204177784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931840A (en) * | 2022-06-02 | 2022-08-23 | 散裂中子源科学中心 | Helium three-gas purification system |
| CN114931840B (en) * | 2022-06-02 | 2024-02-13 | 散裂中子源科学中心 | Helium three-gas purifying system |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 341099 Jinlong Road, Ganzhou economic and Technological Development Zone, Jiangxi Province Patentee after: GANZHOU JIANGWU NEW TYPE ALLOY MATERIAL Co.,Ltd. Address before: 330046 No. 118 West Beijing Road, Jiangxi, Nanchang Patentee before: JIANGXI RARE EARTH AND RARE METALS TUNGSTEN Group Corp. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 |
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