CN106111357A - The gas circuit of protective gas in the gas protection system of a kind of centrifuge and centrifuge - Google Patents
The gas circuit of protective gas in the gas protection system of a kind of centrifuge and centrifuge Download PDFInfo
- Publication number
- CN106111357A CN106111357A CN201610629545.8A CN201610629545A CN106111357A CN 106111357 A CN106111357 A CN 106111357A CN 201610629545 A CN201610629545 A CN 201610629545A CN 106111357 A CN106111357 A CN 106111357A
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- Prior art keywords
- gas
- centrifuge
- air inlet
- gland
- air
- Prior art date
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- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 109
- 239000001301 oxygen Substances 0.000 claims description 40
- 229910052760 oxygen Inorganic materials 0.000 claims description 40
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 39
- 238000005259 measurement Methods 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003610 charcoal Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003082 abrasive agent Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000027734 detection of oxygen Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
Landscapes
- Centrifugal Separators (AREA)
Abstract
The invention discloses a kind of gas and form convection current, and there is not the gas circuit of protective gas in the centrifuge at displacement dead angle, including: the main shaft being movably arranged in bearing block by bearing, the bottom of the discharge bucket of centrifuge is provided with displacement air inlet, axle envelope air inlet it is provided with on described bearing block, renovating of centrifuge offers air vent, main shaft is above described bearing, oil sealing it is disposed with from bottom to top on the position of the lower section at the bottom of rotary drum, spacer ring, sealing gland and the gland matched with sealing gland, inlet chamber it is provided with between spacer ring and main shaft, the air inlet communicated with described axle envelope air inlet it is further opened with on spacer ring, it is provided with inlet channel between described sealing gland and main shaft, the top of gland offers the venthole communicated with described inlet channel.The invention also discloses the gas protection system of a kind of centrifuge using above-mentioned gas circuit, this gas protection system is mainly used in the centrifuge safeguard protection in explosion-proof occasion.
Description
Technical field
The present invention relates to centrifuge, be specifically related in the gas protection system in a kind of centrifuge and centrifuge inner chamber
Gas circuit.
Background technology
At present, a kind of so-called gas using nitrogen or noble gas that centrifuge inner chamber carries out flame proof protection generally used
Body protection system, it is relatively simple for structure, including air ventilation device and the inside being placed in centrifuge inner chamber of an outside
Gas circuit.In actual use, air ventilation device is passed through nitrogen etc. in the way of the biggest flow in centrifuge inner chamber
Protective gas so that the oxygen content concentration of centrifuge inner chamber reaches anti-explosion safety requirement.Thus cause the waste of nitrogen, and
And, if the most excessive nitrogen can not get well reclaiming, the oxygen content that also can reduce working environment residing for centrifuge is dense
Degree, damages the physical and mental health of operator.As long as it is true that the oxygen content concentration ensured in centrifuge inner chamber is less than anti-
Anti-explosion safety requirement has just been reached below the higher limit of quick-fried safety range.Additionally, due to people have only focused on room in rotary drum
Gas shield, the inner air path designed relatively simple for structure, only ensure that protective gas can be full of room in whole rotary drum,
And it cannot be guaranteed that protective gas can arrive each place of centrifuge inner chamber, there is dead angle during gas displacement, most importantly
If the rotatable parts such as main shaft can not be protected by protective gas, when main shaft in rotation process because of card wait indefinitely reason produce fire
When the fortuitous events such as flower occur, it is possible to explode, lead to a disaster.Therefore, there is peace in current centrifuge inner air path
Full hidden danger.
Summary of the invention
The technical problem to be solved is: provide a kind of gas formed convection current and do not exist displacement dead angle from
The gas circuit of protective gas in scheming.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the gas circuit of protective gas in a kind of centrifuge,
Including: the main shaft being movably arranged in bearing block by bearing, the bottom of the discharge bucket of centrifuge is provided with displacement air inlet, institute
Being provided with axle envelope air inlet on the bearing block stated, renovating of centrifuge offers air vent, and described main shaft is at described bearing
Top, lower section at the bottom of rotary drum position on be disposed with oil sealing, spacer ring, sealing gland from bottom to top and match with sealing gland
Gland, is provided with inlet chamber between spacer ring and main shaft, spacer ring is further opened with the air inlet communicated with described axle envelope air inlet,
Being provided with inlet channel between described sealing gland and main shaft, the top of gland offers and giving vent to anger that described inlet channel communicates
Hole.
As a kind of preferred version, in described a kind of centrifuge in the gas circuit of protective gas, described main shaft with
Being provided with wear-resistant sleeve on the position installing oil sealing, spacer ring, sealing gland and gland, described oil sealing, spacer ring, sealing gland and gland are all provided with
Put on this wear-resistant sleeve.
As a kind of preferred version, in described a kind of centrifuge in the gas circuit of protective gas, the inwall of described sealing gland
On offer helixseal groove, form described inlet channel between helixseal groove and wear-resistant sleeve.
As a kind of preferred version, in described a kind of centrifuge in the gas circuit of protective gas, described sealing gland is by certainly
Lubricating and wear-resisting material is made.
As a kind of preferred version, in described a kind of centrifuge in the gas circuit of protective gas, described self-lubricating is resistance to
Mill material is tetrafluoroethene, oil-containing nylon or engineering plastics.
To be solved by this invention another technical problem is that: provides the gas of a kind of centrifuge that can reduce nitrogen use level
Body protection system.
For solving another above-mentioned technical problem, the technical solution used in the present invention is: the gas of a kind of centrifuge is protected
Protecting system, including: air ventilation device, aerofluxus envelope, discharge opeing envelope and inner air path are i.e. arranged on the gas circuit in centrifuge inner chamber, its
It is characterised by: described inner air path have employed gas circuit of the present invention.
As a kind of preferred version, in the gas protection system of described a kind of centrifuge, described gas shield system
System also includes: oxygen content detector, and its concrete structure includes: oxygen measurement, adopting of being arranged on that centrifuge renovates
Sample mouth, connection thief hatch and the gas sampling pipeline of oxygen measurement air inlet, the water mistake being located on gas sampling pipeline of going here and there
Filter, charcoal filter and sampling electromagnetic valve, sample lines also sets up between sampling electromagnetic valve and oxygen measurement
Having the demarcation electromagnetic valve communicated with air, the gas outlet of oxygen measurement connects jet pump, the source of the gas input of jet pump
It is connected with compressed air gas source with jet air relief valve by jet electromagnetic valve on Kou.
As a kind of preferred version, in the gas protection system of described a kind of centrifuge, described sampling electromagnetic valve
String is located in the sample lines between water filter, charcoal filter.
As a kind of preferred version, in the gas protection system of described a kind of centrifuge, described gas displacement dress
Putting and include: reversal valve, a gas outlet of reversal valve is connected with the displacement air inlet of described centrifuge by displacement check valve, changes
Seal air inlet by axle envelope one-way throttle valve with the axle of described centrifuge to another gas outlet of valve to connect, the air inlet of reversal valve
Mouth is connected with protective gas source of the gas with displacement air relief valve by effusion meter.
As a kind of preferred version, in the gas protection system of described a kind of centrifuge, turning over of described centrifuge
Covering the pressure transmitter being additionally provided with for detecting its chamber pressure, described thief hatch is arranged on air vent.
The invention has the beneficial effects as follows: the gas shield structure in the present invention, there is not dead angle in gas displacement, will not from
Any one in scheming inner chamber forms short circuit, it may be assumed that protective gas can arrive each corner of centrifuge inner chamber, thus
The rotatable parts such as main shaft can be effectively protected by protective gas, substantially increase the safety of the whole inner chamber of centrifuge
Property, eliminate potential safety hazard.Additionally, use the gas protection system of said structure, also add oxygen content detector, aerofluxus
Envelope and discharge opeing are sealed, thus the directly air pressure of protective gas and oxygen content, filling into of regulation protective gas in perception centrifuge inner chamber
Amount, had the most both made the oxygen content concentration of centrifuge inner chamber reach anti-explosion safety requirement, and had decreased again the consumption of nitrogen, save
Use cost.Additionally, due to oxygen content detector is provided with the associated components for demarcating oxygen measurement, thus can
With the oxygen content concentration in perception centrifuge inner chamber more accurately so that the safety coefficient of gas protection system has obtained bigger
Ground promotes.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of the gas protection system of centrifuge of the present invention.
Fig. 2 is the schematic diagram of axle of the present invention envelope air intake structure.
Fig. 3 is the structure for amplifying schematic diagram of part A in Fig. 2.
Reference in Fig. 1 to Fig. 3 is: 1, centrifuge, 10, at the bottom of rotary drum, 11, main shaft, 12, wear-resistant sleeve, 13, gland,
131, venthole, 14, sealing gland, 15, spacer ring, 16, oil sealing, 17, bearing block, 18, bearing, 19, axle envelope air intake duct, 2, aerofluxus envelope,
3, discharge opeing envelope, 4, air vent, 5, pressure transmitter, 8, air ventilation device, 80, protective gas source of the gas, 81, one-way throttle valve,
82, check valve, 83, reversal valve, 84, effusion meter, 85, displacement air relief valve, 9, oxygen content detector, 90, compressed air gas source,
91, jet air relief valve, 92, jet electromagnetic valve, 93, jet pump, 94, oxygen measurement, 95, demarcate electromagnetic valve, 96, activated carbon
Filter, 97, sampling electromagnetic valve, 98, water filter.
Fig. 4 is at the flow process of each job step of centrifuge and the schematic diagram of QI invigorating mode.
Fig. 5 is the internal oxygen concentration content schematic diagram of the centrifuge corresponding with each job step shown in Fig. 4.
Detailed description of the invention
Below in conjunction with the accompanying drawings, describe in detail in the gas protection system of a kind of centrifuge of the present invention and centrifuge and protect
Protect the specific embodiments of the gas circuit of gas.
As shown in Figure 1 and Figure 2, the gas circuit of protective gas in a kind of centrifuge, including: by bearing 18 be movably arranged on from
Main shaft 11 in the bearing block 17 of scheming 1, the bottom of the discharge bucket of centrifuge 1 is provided with displacement air inlet and (belongs to this area
Conventional techniques, not shown in figure), the middle part of renovating of centrifuge 1 offers air vent 4, as it is shown on figure 3, described bearing block 17
On be provided with axle envelope air intake duct 19, main shaft 11 above described bearing 18, be provided with on the position of the lower section of 10 at the bottom of rotary drum resistance to
Grinding set 12, is provided with O-ring seal between 10 at the bottom of the top of wear-resistant sleeve 12 and described rotary drum, on wear-resistant sleeve 12 from bottom to top
It is disposed with oil sealing 16, spacer ring 15, sealing gland 14 and the gland 13 matched with sealing gland 14, between spacer ring 15 and wear-resistant sleeve 12
Be provided with inlet chamber, spacer ring 15 be further opened with and the described axle envelope air inlet that communicates of air intake duct 19, described sealing gland 14 by
The self-lubricating abrasion-proof materials such as tetrafluoroethene, oil-containing nylon or engineering plastics are made, and the inwall of sealing gland 14 offers helixseal
Groove, forms inlet channel between helixseal groove and wear-resistant sleeve 12, the top of gland 13 offers and described inlet channel phase
Logical venthole 131.
As it is shown in figure 1, the gas protection system of a kind of centrifuge, including: air ventilation device 8, aerofluxus envelope 2, discharge opeing envelope
3, the most above-mentioned gas circuit being arranged in centrifuge 1 inner chamber of inner air path and air ventilation device 8 and oxygen content detector 9,
The concrete structure of this oxygen content detector 9 includes: oxygen measurement 94, thief hatch (are generally arranged at and are connected with air vent 4
Gas exhaust piping on), the gas sampling pipeline of air inlet of connection thief hatch and oxygen measurement 94, string be located at gas sampling
Water filter 98, charcoal filter 96 and string on pipeline are located at the sampling between water filter 98, charcoal filter 96
Sampling electromagnetic valve 97 on pipeline, sample lines is additionally provided with between charcoal filter 96 and oxygen measurement 94 with
The demarcation electromagnetic valve 95 that air communicates, the gas outlet of oxygen measurement 94 connects and has jet pump 93, the source of the gas of jet pump 93
It is connected with compressed air gas source 90 with jet air relief valve 91 by jet electromagnetic valve 92 on input port；Described air ventilation device 8
Concrete structure include: reversal valve 83, a gas outlet of reversal valve 83 is put by displacement check valve 82 and described centrifuge 1
Swap-in QI KOU connects, another gas outlet of reversal valve 83 by axle seal the axle of one-way throttle valve 81 and described centrifuge 1 seal into
The envelope air inlet connection of the entrance of air flue 19 i.e. axle, the air inlet of reversal valve 83 is by effusion meter 84 and displacement air relief valve 85 and protection
Gas source 80 is connected；The renovating of described centrifuge 1 is additionally provided with the pressure of the chamber pressure for detecting centrifuge 1 and becomes
Send device 5；Described gas exhaust piping is connected in aerofluxus envelope 2, and the tail gas of discharge all delivers to the row of concentration after exhaust treatment system processes
Put；The discharge opeing of centrifuge 1 is connected to discharge opeing envelope 3 by discharging tube, and, the liquid level H2 in discharge opeing envelope 3 is more than in aerofluxus envelope 2
Liquid level H1.
Gas protection system of the present invention, its specific works process is: before centrifuge starts, first, closes sampling
Electromagnetic valve 97, open demarcation electromagnetic valve 95, jet electromagnetic valve 92 oxygen measurement 94 demarcated, demarcate good after, close
Close demarcation electromagnetic valve 95, open sampling electromagnetic valve 97, reversal valve 83 is set, connects check valve 82 so that as protective gas gas
The nitrogen in source 80 enters into centrifugal through displacement air relief valve 85 and effusion meter 84, reversal valve 83 and check valve 82 from displacement air inlet
In the inner chamber of machine 1, the air in centrifuge 1 inner chamber is replaced as nitrogen, in replacement process, real by oxygen measurement 94
Time monitoring centrifuge 1 inner chamber thief hatch at the oxygen content concentration of gas, when oxygen content concentration is down to 3%, gas displacement
Journey terminates；When oxygen measurement 94 lost efficacy, when the nitrogen being passed through exceedes 3 times of centrifuge 1 cavity volume, centrifuge 1
The gas displacement process of inner chamber terminates；It follows that reset reversal valve 83, connect one-way throttle valve 81, then, start centrifugal
Machine 1, start follow-up charging, wash, de-liquid, reduction of speed, scraper and pulling bag process, it may be assumed that start follow-up dynamic running process, when
When oxygen measurement 94 is working properly, generally use the mode that low discharge as shown in Figure 4 combines with big flow to centrifugal
Fill into nitrogen in the inner chamber of machine 1, shown in Figure 5, it concretely comprises the following steps: that continue for some time, 5 cubic metres per hour
After low discharge supplements, when oxygen content concentration to 5%, then the big flow carrying out being more than per hour 20 cubic metres supplements, this mistake
Cheng Tongchang is the shortest, thus call it as big flow pulse supplement so that the oxygen content concentration in centrifuge 1 inner chamber be down to 3% with
Under；When oxygen content Concentration Testing lost efficacy, flow detection was normal, then with the flow of per hour 5 cubic metres, interval with per hour
The flow of more than 20 cubic metres (depending on concrete numerical value can be according to practical situations) is passed through nitrogen in the inner chamber of centrifuge 1；Work as oxygen
Content concn detection and flow detection be when losing efficacy simultaneously, then (concrete numerical value can be according to actual feelings with more than per hour 20 cubic metres
Depending on condition) flow in the inner chamber of centrifuge 1, supplement nitrogen, until centrifuge end of run；Chamber pressure when centrifuge 1
Less than 5 millibars (hundred handkerchiefs) after the ambient pressure that the exception i.e. air pressure of centrifuge inner chamber deducts workshop residing for centrifuge, then start
Workshop forced ventilation, it is ensured that the oxygen content concentration in workshop is within safety range (usually 19.5% to 21%).
Certainly, during actual application, also periodically the working environment residing for centrifuge should be carried out the detection of oxygen content concentration, one
When denier finds the oxygen content concentration in surrounding less than 20%, so that it may start forced ventilation, it is thereby advantageously ensured that operation
The personal safety of personnel.
In sum, only presently preferred embodiments of the present invention, not it is used for limiting the scope that the present invention implements, all depends on
Equalization change and the modification that shape, structure, feature and spirit described in scope of the invention as claimed is made, all should be included in this
In the right of invention.
Claims (10)
1. a gas circuit for protective gas in centrifuge, including: the main shaft being movably arranged in bearing block by bearing, its feature
It is: the bottom of the discharge bucket of centrifuge is provided with displacement air inlet, described bearing block is provided with axle envelope air inlet, centrifugal
Renovating of machine offers air vent, on the position of described main shaft lower section above described bearing, at the bottom of rotary drum from lower and
On be disposed with oil sealing, spacer ring, sealing gland and the gland matched with sealing gland, be provided with inlet chamber between spacer ring and main shaft,
It is further opened with the air inlet communicated with described axle envelope air inlet on spacer ring, is provided with air inlet between described sealing gland and main shaft and leads to
Road, the top of gland offers the venthole communicated with described inlet channel.
The gas circuit of protective gas in centrifuge the most according to claim 1, it is characterised in that: described main shaft is pacified being used for
Being provided with wear-resistant sleeve on the position of charge of oil envelope, spacer ring, sealing gland and gland, described oil sealing, spacer ring, sealing gland and gland are arranged at
On this wear-resistant sleeve.
The gas circuit of protective gas in centrifuge the most according to claim 2, it is characterised in that: open on the inwall of described sealing gland
It is provided with helixseal groove, between helixseal groove and wear-resistant sleeve, forms described inlet channel.
The gas circuit of protective gas in centrifuge the most according to claim 3, it is characterised in that: described sealing gland is by self-lubricating
High-abrasive material is made.
The gas circuit of protective gas in centrifuge the most according to any one of claim 1 to 4, it is characterised in that: described
Self-lubricating abrasion-proof material is tetrafluoroethene, oil-containing nylon or engineering plastics.
6. a gas protection system for centrifuge, including: air ventilation device, aerofluxus envelope, discharge opeing envelope and inner air path i.e. set
Put the gas circuit in centrifuge inner chamber, it is characterised in that: described inner air path have employed the gas circuit described in claim 1.
The gas protection system of centrifuge the most according to claim 6, it is characterised in that: described gas protection system is also
Including: oxygen content detector, its concrete structure includes: oxygen measurement, be arranged on thief hatch that centrifuge renovates,
Water filter that the gas sampling pipeline of connection thief hatch and oxygen measurement air inlet, string are located on gas sampling pipeline,
Charcoal filter and sampling electromagnetic valve, in sample lines sampling electromagnetic valve and oxygen measurement between be additionally provided with greatly
The demarcation electromagnetic valve that gas phase is logical, the gas outlet of oxygen measurement connects and has jet pump, logical on the source of the gas input port of jet pump
Cross jet electromagnetic valve to be connected with compressed air gas source with jet air relief valve.
The gas protection system of centrifuge the most according to claim 7, it is characterised in that: described sampling electromagnetic valve string sets
In sample lines between water filter, charcoal filter.
The gas protection system of centrifuge the most according to claim 6, it is characterised in that: described air ventilation device bag
Including: reversal valve, a gas outlet of reversal valve is connected with the displacement air inlet of described centrifuge by displacement check valve, reversal valve
Another gas outlet connected by the axle envelope air inlet of axle envelope one-way throttle valve and described centrifuge, the air inlet of reversal valve is logical
Inflow-rate of water turbine meter is connected with protective gas source of the gas with displacement air relief valve.
10. according to the gas protection system of the centrifuge according to any one of claim 6 to 9, it is characterised in that: described from
Being additionally provided with the pressure transmitter for detecting its chamber pressure in scheming, described thief hatch is arranged on air vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629545.8A CN106111357B (en) | 2016-08-04 | 2016-08-04 | The gas circuit of protective gas in the gas protection system and centrifuge of a kind of centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629545.8A CN106111357B (en) | 2016-08-04 | 2016-08-04 | The gas circuit of protective gas in the gas protection system and centrifuge of a kind of centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106111357A true CN106111357A (en) | 2016-11-16 |
| CN106111357B CN106111357B (en) | 2018-06-05 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252741A (en) * | 2017-06-22 | 2017-10-17 | 常州合全药业有限公司 | The whole nitrogen protection operating procedure of plate centrifuge |
| CN108311299A (en) * | 2018-05-09 | 2018-07-24 | 张家港市中南化工机械有限公司 | A kind of centrifuge drive assembly |
| CN108654848A (en) * | 2018-05-09 | 2018-10-16 | 张家港市中南化工机械有限公司 | A kind of nitrogen charging centrifuge system |
| CN108889458A (en) * | 2018-08-08 | 2018-11-27 | 江苏同泽过滤科技有限公司 | A kind of explosion protected centrifugal machine system |
| CN112619302A (en) * | 2020-12-07 | 2021-04-09 | 安徽普源分离机械制造有限公司 | Filtering device for gas detection and oxygen content detection system of centrifugal machine |
| CN115103725A (en) * | 2020-02-25 | 2022-09-23 | 阿法拉伐股份有限公司 | Method for determining whether air is trapped in a centrifugal separator |
| CN115350821A (en) * | 2022-08-30 | 2022-11-18 | 上海市离心机械研究所有限公司 | Gas protection mechanism of horizontal screw centrifuge |
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| CN107252741A (en) * | 2017-06-22 | 2017-10-17 | 常州合全药业有限公司 | The whole nitrogen protection operating procedure of plate centrifuge |
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| CN115103725A (en) * | 2020-02-25 | 2022-09-23 | 阿法拉伐股份有限公司 | Method for determining whether air is trapped in a centrifugal separator |
| CN115103725B (en) * | 2020-02-25 | 2023-12-12 | 阿法拉伐股份有限公司 | Method for determining whether air is trapped in a centrifugal separator |
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