CN106111357B - The gas circuit of protective gas in the gas protection system and centrifuge of a kind of centrifuge - Google Patents
The gas circuit of protective gas in the gas protection system and centrifuge of a kind of centrifuge Download PDFInfo
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- CN106111357B CN106111357B CN201610629545.8A CN201610629545A CN106111357B CN 106111357 B CN106111357 B CN 106111357B CN 201610629545 A CN201610629545 A CN 201610629545A CN 106111357 B CN106111357 B CN 106111357B
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- gas
- centrifuge
- gland
- air inlet
- main shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
Abstract
Convection current is formed the invention discloses a kind of gas and the gas circuit of protective gas in the centrifuge at displacement dead angle is not present, including：The main shaft being movably arranged on by bearing in bearing block, the bottom of the discharge bucket of centrifuge is provided with displacement air inlet, axle envelope air inlet is provided on the bearing block, renovating for centrifuge offers exhaust outlet, main shaft is in the top of the bearing, oil sealing is disposed with from bottom to top on the position of the lower section at rotary drum bottom, spacer ring, sealing gland and with the matched gland of sealing gland, inlet chamber is provided between spacer ring and main shaft, the air admission hole communicated with the axle envelope air inlet is further opened on spacer ring, inlet channel is provided between the sealing gland and main shaft, the venthole communicated with the inlet channel is offered at the top of gland.The invention also discloses a kind of gas protection system of the centrifuge using above-mentioned gas circuit, which is mainly used for safeguard protection of the centrifuge in explosion-proof occasion.
Description
Technical field
The present invention relates to centrifuges, and in particular into the gas protection system in a kind of centrifuge and centrifuge inner cavity
Gas circuit.
Background technology
At present, a kind of so-called gas for carrying out flame proof protection to centrifuge inner cavity using nitrogen or inert gas of generally use
Body protects system, relatively simple for structure, the air ventilation device including an outside and the inside being placed in centrifuge inner cavity
Gas circuit.In actual use, air ventilation device is passed through nitrogen etc. in a manner of lasting big flow into centrifuge inner cavity
Protective gas so that the oxygen content concentration of centrifuge inner cavity reaches anti-explosion safety requirement.The waste of nitrogen is thus caused, and
And if a large amount of excessive nitrogen cannot recycle well, the oxygen content that can also reduce working environment residing for centrifuge is dense
Degree, damages the physical and mental health of operator.In fact, as long as the oxygen content concentration in guarantee centrifuge inner cavity is less than anti-
Anti-explosion safety requirement is just reached below the upper limit value of quick-fried safe range.Further, since people have been only focused on to rotary drum interior room
Gas shield, the inner air path designed it is relatively simple for structure, only ensure that protective gas can be full of entire rotary drum interior room,
And cannot be guaranteed that protective gas can reach each place of centrifuge inner cavity, there are dead angle during gas displacement, most importantly
If protective gas cannot protect the rotatable parts such as main shaft, when main shaft in rotation process because the reasons such as stuck generate fire
Flower is when fortuitous events occur, it is possible to explode, lead to a disaster.Therefore, there is peace in current centrifuge inner air path
Full hidden danger.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of gas formed convection current and there is no displacement dead angle from
The gas circuit of protective gas in scheming.
In order to solve the above technical problems, the technical solution adopted by the present invention is：The gas circuit of protective gas in a kind of centrifuge,
Including：The main shaft being movably arranged on by bearing in bearing block, the bottom of the discharge bucket of centrifuge are provided with displacement air inlet, institute
Axle envelope air inlet is provided on the bearing block stated, renovating for centrifuge offers exhaust outlet, and the main shaft is in the bearing
Top, rotary drum bottom lower section position on be disposed with oil sealing, spacer ring, sealing gland and matched with sealing gland from bottom to top
Gland is provided with inlet chamber between spacer ring and main shaft, the air admission hole communicated with the axle envelope air inlet is further opened on spacer ring,
Inlet channel is provided between the sealing gland and main shaft, the outlet communicated with the inlet channel is offered at the top of gland
Hole.
As a preferred embodiment, in a kind of centrifuge in the gas circuit of protective gas, the main shaft with
In being provided with wear-resistant sleeve on the position of installation oil sealing, spacer ring, sealing gland and gland, the oil sealing, spacer ring, sealing gland and gland are all provided with
It puts on the wear-resistant sleeve.
As a preferred embodiment, in a kind of centrifuge in the gas circuit of protective gas, the inner wall of the sealing gland
On offer helixseal slot, the inlet channel is formed between helixseal slot and wear-resistant sleeve.
As a preferred embodiment, in a kind of centrifuge in the gas circuit of protective gas, the sealing gland is by certainly
Lubricating and wear-resisting material is made.
As a preferred embodiment, in a kind of centrifuge in the gas circuit of protective gas, the self-lubricating is resistance to
Mill material is tetrafluoroethene, oil-containing nylon or engineering plastics.
Another technical problem to be solved by this invention is：A kind of gas for the centrifuge that can reduce nitrogen use level is provided
Body protects system.
To solve another above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of gas of centrifuge is protected
Protecting system, including：Air ventilation device, exhaust envelope, drain envelope and inner air path are the gas circuit being arranged in centrifuge inner cavity,
It is characterized in that：The inner air path employs gas circuit of the present invention.
As a preferred embodiment, in a kind of gas protection system of centrifuge, the gas shield system
System has further included：Oxygen content detector, concrete structure include：Oxygen measurement, adopting of being arranged on that centrifuge renovates
Gas sampling pipeline, the string of sample mouth, connection thief hatch and oxygen measurement air inlet are located at the water mistake of gas sampler road
Filter, charcoal filter and sampling solenoid valve, also set up between sampling solenoid valve and oxygen measurement in sample lines
There is the calibration solenoid valve communicated with air, jet pump, the source of the gas input of jet pump are connected on the gas outlet of oxygen measurement
It is connected on mouthful by jet stream solenoid valve and jet stream pressure reducing valve with compressed air gas source.
As a preferred embodiment, in a kind of gas protection system of centrifuge, the sampling solenoid valve
String is located in the sample lines between water filter, charcoal filter.
As a preferred embodiment, in a kind of gas protection system of centrifuge, gas displacement dress
Put including：Reversal valve, a gas outlet of reversal valve are connected with the displacement air inlet of the centrifuge by replacing check valve, changed
It is connected to another gas outlet of valve by axle envelope one-way throttle valve with the axle envelope air inlet of the centrifuge, the air inlet of reversal valve
Mouth is connected by flowmeter and displacement pressure reducing valve with protective gas source of the gas.
As a preferred embodiment, in a kind of gas protection system of centrifuge, the centrifuge turns over
The pressure transmitter for being additionally provided with to detect its chamber pressure is covered, the thief hatch is arranged on exhaust outlet.
The beneficial effects of the invention are as follows：Gas shield structure in the present invention, gas displacement be not present dead angle, will not from
Any one in scheming inner cavity forms short circuit, i.e.,：Protective gas can reach each corner of centrifuge inner cavity, thus
So that protective gas can be effectively protected the rotatable parts such as main shaft, the safety of the entire inner cavity of centrifuge is substantially increased
Property, eliminate security risk.In addition, gas protection system using the above structure, also adds oxygen content detector, exhaust
Envelope and drain envelope, so as to directly perceive the air pressure of protective gas and oxygen content in centrifuge inner cavity, adjust filling into for protective gas
Amount so not only causes the oxygen content concentration of centrifuge inner cavity to reach anti-explosion safety requirement, but also reduces the dosage of nitrogen, saves
Use cost.Further, since be provided with to demarcate the associated components of oxygen measurement in oxygen content detector, so as to
More accurately to perceive the oxygen content concentration in centrifuge inner cavity so that the safety coefficient of gas protection system has obtained larger
Ground is promoted.
Description of the drawings
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 envelope air intake structure of the present invention.
Fig. 3 is the enlarged structure schematic diagram of part A in Fig. 2.
Reference numeral in Fig. 1 to Fig. 3 is：1st, centrifuge, 10, rotary drum bottom, 11, main shaft, 12, wear-resistant sleeve, 13, gland,
131st, venthole, 14, sealing gland, 15, spacer ring, 16, oil sealing, 17, bearing block, 18, bearing, 19, axle envelope air intake duct, 2, exhaust envelope,
3rd, drain is sealed, and 4, exhaust outlet, 5, pressure transmitter, 8, air ventilation device, 80, protective gas source of the gas, 81, one-way throttle valve,
82nd, check valve, 83, reversal valve, 84, flowmeter, 85, displacement pressure reducing valve, 9, oxygen content detector, 90, compressed air gas source,
91st, jet stream pressure reducing valve, 92, jet stream solenoid valve, 93, jet pump, 94, oxygen measurement, 95, calibration solenoid valve, 96, activated carbon
Filter, 97, sampling solenoid valve, 98, water filter.
Fig. 4 is the schematic diagram of the flow and tonifying Qi mode in each work step of centrifuge.
Fig. 5 be and the corresponding centrifuge of each work step shown in Fig. 4 inside oxygen concentration content schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings, protected in a kind of gas protection system of detailed description centrifuge of the present invention and centrifuge
Protect the specific embodiment of the gas circuit of gas.
As shown in Figure 1 and Figure 2, in a kind of centrifuge protective gas gas circuit, 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 are provided with displacement air inlet and (belong to this field
Conventional techniques are not shown in figure), the middle part of renovating of centrifuge 1 offers exhaust outlet 4, as shown in figure 3, the bearing block 17
On be provided with axle envelope air intake duct 19, main shaft 11 the top of the bearing 18, the lower section at rotary drum bottom 10 position on be provided with it is resistance to
Grinding set 12, is provided with ring type seal between the top of wear-resistant sleeve 12 and the rotary drum bottom 10, on wear-resistant sleeve 12 from bottom to top
Be disposed with oil sealing 16, spacer ring 15, sealing gland 14 and with 14 matched gland 13 of sealing gland, between spacer ring 15 and wear-resistant sleeve 12
Be provided with inlet chamber, be further opened with the air admission hole communicated with the axle envelope air intake duct 19 on spacer ring 15, the sealing gland 14 by
The self-lubricating abrasion-proof materials such as tetrafluoroethene, oil-containing nylon or engineering plastics are made, and helixseal is offered on the inner wall of sealing gland 14
Slot, forms inlet channel between helixseal slot and wear-resistant sleeve 12, the top of gland 13 offers and the inlet channel phase
Logical venthole 131.
As shown in Figure 1, a kind of gas protection system of centrifuge, including：Air ventilation device 8, exhaust envelope 2, drain envelope
3rd, inner air path, that is, above-mentioned gas circuit being arranged in 1 inner cavity of centrifuge and air ventilation device 8 and oxygen content detector 9,
The concrete structure of the oxygen content detector 9 includes：Oxygen measurement 94, thief hatch (are generally arranged at and are connected with exhaust outlet 4
Gas exhaust piping on), gas sampling pipeline, the string of the air inlet of connection thief hatch and oxygen measurement 94 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 solenoid valve 97 on pipeline, be additionally provided between charcoal filter 96 and oxygen measurement 94 in sample lines with
The calibration solenoid valve 95 that air communicates is connected with jet pump 93, the source of the gas of jet pump 93 on the gas outlet of oxygen measurement 94
It is connected on input port by jet stream solenoid valve 92 and jet stream pressure reducing valve 91 with compressed air gas source 90；The air ventilation device 8
Concrete structure include：Reversal valve 83, a gas outlet of reversal valve 83 is by replacing putting for check valve 82 and the centrifuge 1
Swap-in gas port connects, another gas outlet of reversal valve 83 by the axle envelope of axle envelope one-way throttle valve 81 and the centrifuge 1 into
The entrance of air flue 19, that is, axle envelope air inlet connection, the air inlet of reversal valve 83 pass through flowmeter 84 and displacement pressure reducing valve 85 and protection
Gas source 80 is connected；The pressure for renovating the chamber pressure for being additionally provided with to detect centrifuge 1 of the centrifuge 1 becomes
Send device 5；The gas exhaust piping is connected in exhaust envelope 2, the row of concentration after the tail gas of discharge is all sent to exhaust treatment system processing
It puts；The drain of centrifuge 1 is connected to drain envelope 3 by drain pipe, also, the liquid level H2 in drain envelope 3 is more than in exhaust envelope 2
Liquid level H1.
Gas protection system of the present invention, specific work process are：Before centrifuge starts, first, sampling is closed
Solenoid valve 97, opening calibration solenoid valve 95, jet stream solenoid valve 92 demarcate oxygen measurement 94, after calibration is good, close
It closes calibration solenoid valve 95, open sampling solenoid valve 97, reversal valve 83 is set, connects check valve 82 so that as protective gas gas
The nitrogen in source 80 enters centrifugation by displacement pressure reducing valve 85 and flowmeter 84, reversal valve 83 and check valve 82 from displacement air inlet
In the inner cavity of machine 1, the air in 1 inner cavity of centrifuge is replaced as nitrogen, it is real by oxygen measurement 94 in replacement process
When monitor the oxygen content concentration of gas at the thief hatch of centrifuge 1 inner cavity, when oxygen content concentration is down to 3%, gas displacement
Journey terminates；When oxygen measurement 94 fails, when the nitrogen being passed through is more than 3 times of 1 cavity volume of centrifuge, centrifuge 1
The gas displacement process of inner cavity terminates；Next, resetting reversal valve 83, one-way throttle valve 81 is connected, then, starts centrifugation
Machine 1 starts subsequent charging, washing, de- liquid, reduction of speed, scraper and pulling bag process, i.e.,：Start subsequent dynamic running process, when
When oxygen measurement 94 is working properly, mode that generally use small flow as shown in Figure 4 is combined with big flow is to centrifugation
Nitrogen is filled into the inner cavity of machine 1, it is shown in Figure 5, it concretely comprises the following steps：It is continuing for some time, 5 cubic metres per hour
After small flow supplement, when oxygen content concentration is to 5%, then carries out the big flow more than 20 cubic metres per hour and supplement, this mistake
Cheng Tongchang is very short, thus call it as big flow pulse supplement so that the oxygen content concentration in 1 inner cavity of centrifuge be down to 3% with
Under；When oxygen content Concentration Testing fails and flow detection is normal, then with 5 cubic metres of flow, interval per hour with per hour
The flow of 20 cubic metres or more (concrete numerical value can be depending on actual conditions) is passed through nitrogen into the inner cavity of centrifuge 1；Work as oxygen
When content concn detects and flow detection fails simultaneously, then with 20 cubic metres or more per hour, (concrete numerical value can be according to actual feelings
Depending on condition) flow supplement nitrogen into the inner cavity of centrifuge 1, until centrifuge end of run；When the chamber pressure of centrifuge 1
Abnormal is that the air pressure of centrifuge inner cavity is subtracted after the ambient pressure in workshop residing for centrifuge less than 5 millibars (hundred pas), then starts
Workshop forced ventilation ensures the oxygen content concentration in workshop within safe range (being usually 19.5% to 21%).
Certainly, during practical application, should also periodically to residing for centrifuge working environment carry out oxygen content concentration detection, one
When denier finds that the oxygen content concentration in ambient enviroment is less than 20%, so that it may start forced ventilation, it is thereby advantageously ensured that operation
The personal safety of personnel.
In conclusion only presently preferred embodiments of the present invention, be not used for limiting the scope that the present invention is implemented, it is all according to
The equivalent changes and modifications that shape, construction, feature and spirit described in scope of the invention as claimed are made should all be included in this
In the right of invention.
Claims (10)
1. the gas circuit of protective gas in a kind of centrifuge, including：The main shaft being movably arranged on by bearing in bearing block, feature
It is：The bottom of the discharge bucket of centrifuge is provided with displacement air inlet, and axle envelope air inlet is provided on the bearing block, centrifugation
Renovating for machine offers exhaust outlet, the main shaft the top of the bearing, the lower section at rotary drum bottom position on from lower and
On be disposed with oil sealing, spacer ring, sealing gland and with the matched gland of sealing gland, inlet chamber is provided between spacer ring and main shaft,
The air admission hole communicated with the axle envelope air inlet is further opened on spacer ring, being provided with air inlet between the sealing gland and main shaft leads to
Road offers the venthole communicated with the inlet channel at the top of gland.
2. the gas circuit of protective gas in centrifuge according to claim 1, it is characterised in that：The main shaft is for pacifying
Charge of oil envelope, spacer ring, sealing gland and gland position on be provided with wear-resistant sleeve, the oil sealing, spacer ring, sealing gland and gland are arranged at
On the wear-resistant sleeve.
3. the gas circuit of protective gas in centrifuge according to claim 2, it is characterised in that：It is opened on the inner wall of the sealing gland
Equipped with helixseal slot, the inlet channel is formed between helixseal slot and wear-resistant sleeve.
4. the gas circuit of protective gas in centrifuge according to claim 3, it is characterised in that：The sealing gland is by self-lubricating
Wear-resistant material is made.
5. the gas circuit of protective gas in centrifuge according to claim 4, it is characterised in that：The self-lubricating abrasion-resistant material
Expect for tetrafluoroethene, oil-containing nylon or engineering plastics.
6. a kind of gas protection system of centrifuge, including：Air ventilation device, exhaust envelope, drain envelope and inner air path are set
Put the gas circuit in centrifuge inner cavity, it is characterised in that：The inner air path employs gas circuit described in claim 1.
7. the gas protection system of centrifuge according to claim 6, it is characterised in that：The gas protection system is also
Include：Oxygen content detector, concrete structure include：Oxygen measurement, be arranged on thief hatch that centrifuge renovates,
Gas sampling pipeline, the string of connection thief hatch and oxygen measurement air inlet be located at gas sampler road water filter,
Charcoal filter and sampling solenoid valve, be additionally provided between sampling solenoid valve and oxygen measurement in sample lines with greatly
The calibration solenoid valve that gas phase is led to is connected with jet pump on the gas outlet of oxygen measurement, leads on the source of the gas input port of jet pump
It crosses jet stream solenoid valve and jet stream pressure reducing valve is connected with compressed air gas source.
8. the gas protection system of centrifuge according to claim 7, it is characterised in that：The sampling solenoid valve string is set
In sample lines between water filter, charcoal filter.
9. the gas protection system of centrifuge according to claim 6, it is characterised in that：The air ventilation device bag
It includes：Reversal valve, a gas outlet of reversal valve are connected by replacing check valve with the displacement air inlet of the centrifuge, reversal valve
Another gas outlet connected by axle envelope one-way throttle valve with the axle envelope air inlet of the centrifuge, the air inlet of reversal valve leads to
Overcurrent gauge and displacement pressure reducing valve are connected with protective gas source of the gas.
10. the gas protection system of the centrifuge according to claim 7 or 8, it is characterised in that：On the centrifuge also
It is provided with to detect the pressure transmitter of its chamber pressure, the thief hatch is arranged on exhaust outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 |
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| CN106111357B true CN106111357B (en) | 2018-06-05 |
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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 |
| 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 |
| 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 |
| CN108889458B (en) * | 2018-08-08 | 2024-01-02 | 江苏同泽过滤科技有限公司 | Explosion-proof centrifuge system |
| EP3871791A1 (en) * | 2020-02-25 | 2021-09-01 | Alfa Laval Corporate AB | Method for determining if air is trapped within a centrifugal separator |
| 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 |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763572A (en) * | 1970-06-09 | 1973-10-09 | H Titus | Method and apparatus for pneumatically discharging a drum centrifuge |
| CN2748179Y (en) * | 2004-10-29 | 2005-12-28 | 张家港华大离心机制造有限公司 | Nitrogen protection explosion-proof arrangement of centrifugal machine |
| CN201419129Y (en) * | 2009-05-22 | 2010-03-10 | 浙江九洲药业股份有限公司 | Positive pressure protecting device for automatic nitrogen filling of centrifuge |
| CN202146827U (en) * | 2011-06-22 | 2012-02-22 | 郑州新力德粮油科技有限公司 | Nitrogen protection explosion-proof device for centrifuge |
| CN102580863A (en) * | 2012-02-27 | 2012-07-18 | 蚌埠精工制药机械有限公司 | Nitrogen protection device of centrifugal machine |
| CN202387588U (en) * | 2011-12-02 | 2012-08-22 | 重庆江北机械有限责任公司 | Sealed explosion-proof nitrogen charging protector for horizontal scraper centrifuge |
| CN202893534U (en) * | 2012-09-27 | 2013-04-24 | 安徽普源分离机械制造有限公司 | Nitrogen protection centrifuge |
| CN203370657U (en) * | 2013-07-03 | 2014-01-01 | 南通香地生物有限公司 | Anti-explosion centrifugal machine |
| CN204107684U (en) * | 2014-09-11 | 2015-01-21 | 河北化工医药职业技术学院 | A kind of industrial centrifugal machine explosion protection system |
| CN204338349U (en) * | 2014-11-18 | 2015-05-20 | 江苏泰仓农化有限公司 | A kind of T-80 produces with centrifuge nitrogen filled protection system and device |
| CN204746634U (en) * | 2015-06-30 | 2015-11-11 | 江苏泰仓农化有限公司 | Centrifugal separator explosion -proof equipment is used in benomyl production |
| CN205903991U (en) * | 2016-08-04 | 2017-01-25 | 江苏华大离心机制造有限公司 | Protective gas's gas circuit among centrifuge's gas protection system and centrifuge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5547331B1 (en) * | 2013-11-04 | 2014-07-09 | 巴工業株式会社 | Centrifuge |
-
2016
- 2016-08-04 CN CN201610629545.8A patent/CN106111357B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3763572A (en) * | 1970-06-09 | 1973-10-09 | H Titus | Method and apparatus for pneumatically discharging a drum centrifuge |
| CN2748179Y (en) * | 2004-10-29 | 2005-12-28 | 张家港华大离心机制造有限公司 | Nitrogen protection explosion-proof arrangement of centrifugal machine |
| CN201419129Y (en) * | 2009-05-22 | 2010-03-10 | 浙江九洲药业股份有限公司 | Positive pressure protecting device for automatic nitrogen filling of centrifuge |
| CN202146827U (en) * | 2011-06-22 | 2012-02-22 | 郑州新力德粮油科技有限公司 | Nitrogen protection explosion-proof device for centrifuge |
| CN202387588U (en) * | 2011-12-02 | 2012-08-22 | 重庆江北机械有限责任公司 | Sealed explosion-proof nitrogen charging protector for horizontal scraper centrifuge |
| CN102580863A (en) * | 2012-02-27 | 2012-07-18 | 蚌埠精工制药机械有限公司 | Nitrogen protection device of centrifugal machine |
| CN202893534U (en) * | 2012-09-27 | 2013-04-24 | 安徽普源分离机械制造有限公司 | Nitrogen protection centrifuge |
| CN203370657U (en) * | 2013-07-03 | 2014-01-01 | 南通香地生物有限公司 | Anti-explosion centrifugal machine |
| CN204107684U (en) * | 2014-09-11 | 2015-01-21 | 河北化工医药职业技术学院 | A kind of industrial centrifugal machine explosion protection system |
| CN204338349U (en) * | 2014-11-18 | 2015-05-20 | 江苏泰仓农化有限公司 | A kind of T-80 produces with centrifuge nitrogen filled protection system and device |
| CN204746634U (en) * | 2015-06-30 | 2015-11-11 | 江苏泰仓农化有限公司 | Centrifugal separator explosion -proof equipment is used in benomyl production |
| CN205903991U (en) * | 2016-08-04 | 2017-01-25 | 江苏华大离心机制造有限公司 | Protective gas's gas circuit among centrifuge's gas protection system and centrifuge |
Non-Patent Citations (1)
| Title |
|---|
| 离心机氮气保护防爆系统设计;张德友等;《过滤与分离》;20090315(第1期);第31-33页 * |
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| CN106111357A (en) | 2016-11-16 |
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