CN107297282A - A kind of vibration protection method of centrifuge - Google Patents
A kind of vibration protection method of centrifuge Download PDFInfo
- Publication number
- CN107297282A CN107297282A CN201710594130.6A CN201710594130A CN107297282A CN 107297282 A CN107297282 A CN 107297282A CN 201710594130 A CN201710594130 A CN 201710594130A CN 107297282 A CN107297282 A CN 107297282A
- Authority
- CN
- China
- Prior art keywords
- control device
- vibration
- main motor
- centrifuge
- device control
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
- B04B7/06—Safety devices ; Regulating
Abstract
The invention discloses a kind of vibration protection method of centrifuge, it is included in the vibration measurement sensor and warning device for setting and being electrically connected with control device on centrifuge housing, then control device carries out different controls according to sensor measured value to centrifuge main motor：1) during whole charging and washing, de- liquid：If vibration velocity Fr<25mm/s, centrifuge is run by setup program；2) in fill process, if vibration measurement sensor measures vibration velocity Fr >=25mm/s, charging is closed, 5 10Hz drop in control device control main motor running frequency, alarm activation, into waiting for manual intervention state；3) in the full boosting velocity procedure of material：According to the vibration velocity of detection, controlled motor and feed arrangement to reduce vibration, or carry out manual intervention in corresponding working condition；4) when in washing, de- liquid, if vibration velocity Fr >=35mm/s, alarm activation, while starting manual intervention pattern.
Description
Technical field
The present invention relates to a kind of vibration protection method of centrifuge.
Background technology
As shown in figure 1, the normal startup optimization of centrifuge is generally comprised：1. rotary drum raising speed to charging rate, 2. keep rotating speed
Charging, 3. raising speeds to de- liquid speed degree, 4. carry out de- liquid, again washing, de- liquid, 5. reductions of speed to scraper speed, 6. scrapers, 7. pulling bags
Process.
Centrifuge vibration problem is the key issue during centrifuge use, is had greatly to centrifuge if vibration is excessive
Infringement, can cause centrifuge structure to be destroyed when serious, the problems such as such as bearing damage, seal failure, bearing structure are deformed, even
Main shaft is broken.Vibration when centrifuge is used is mainly caused by material branch inequality in rotary drum.The vibration requirement of centrifuge
Control is in vibration velocity Fr<25mm/s, is accomplished by handling vibration problem during more than this value, but existing method is usually
It is the limiting value more than a certain setting, directly shuts down, but this can make the filter residue with filtrate in centrifuge fully enter sludge outlet,
Filter residue is caused all individually to handle again, it is very cumbersome, and also the filtrate having can cause parts to cause corruption to going out slag part
Erosion.
The content of the invention
The technical problems to be solved by the invention are：There is provided one kind can voluntarily adjust velocity of rotation with protection equipment, again
Filtrate impacts to the slag part that goes out of centrifuge and greatly reduces the vibration protection method of manpower safeguarded when avoiding shutting down.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of vibration protection method of centrifuge,
It is included in the vibration measurement sensor and warning device for setting and being electrically connected with control device on centrifuge housing, then control device
Centrifuge main motor is controlled as follows according to sensor measured value：
1) during whole charging and washing, de- liquid：If vibration measurement sensor measures vibration velocity Fr<25mm/
S, centrifuge is run by setup program；
2) in fill process：
If vibration measurement sensor measures vibration velocity Fr >=25mm/s, charging is closed, control device controls main electricity
5-10Hz, control device control alarm activation, into waiting for manual intervention state drop in machine running frequency；
3) in the full boosting velocity procedure of material：
A：If after material is full, vibration measurement sensor measures vibration velocity Fr under feed rotation<25mm/s, rises to specified
Rotating speed, is carried out by setup program；
Such as after material is full, vibration velocity Fr >=25mm/s is measured under feed rotation, then control device control main motor fortune
NHz drops in line frequency, and n spans are 5-10, feed supplement t seconds, t span 5-15, then control device control main motor operation
Frequency before frequency retrieval to feed supplement；
B：If now measuring vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, centrifuge
Run by setup program；
If now measuring vibration velocity Fr >=25mm/s, nHz drops in control device control main motor running frequency, and n takes
Value scope be 5-10, feed supplement t second, t span 5-15, then control device control main motor running frequency recover to feed supplement
Frequency；
If now vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, and centrifuge is by setting
Program is run；
If still measuring vibration velocity Fr >=25mm/s, control device control main motor running frequency drop nHz, n values
Scope is 5-10, feed supplement t seconds, t span 5-15, and then control device control main motor running frequency recovers to feed supplement frequency
Rate；
C:If after 3 feed supplement, vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, centrifuges
Machine is run by setup program；
If after 3 feed supplements, still measuring vibration velocity Fr >=25mm/s, then control device controls alarm activation,
10-15Hz is down to timed unit control main motor running frequency, into waiting for manual intervention state；
4) when in washing, de- liquid, if vibration velocity 25mm/s≤Fr<35mm/s, control device control main motor frequency
Rate reduction 8-12Hz operations, control device control alarm activation, into waiting for manual intervention state；
If vibration velocity Fr >=35mm/s, control device control alarm activation, control device control main motor frequency
Rate is down to 10-15Hz operations, into waiting for manual intervention state.
As a kind of preferred scheme, the vibration measurement sensor is installed on case inside just to the position in the middle part of rotatory drum wall
Put place.
The beneficial effects of the invention are as follows：This method allows centrifuge to be corrected automatically when material is uneven；And from
When the problems such as scheming is if there is material leakage causes the vibration to transfinite, low-speed centrifugal state can be kept, when waiting operating personnel idle before
To handle, required when centrifuge is used manpower is safeguarded so as to greatly reduce.
In fill process, if vibration measurement sensor measures vibration velocity Fr >=25mm/s, charging, control are closed
Device control main motor running frequency drop 5-10Hz, control device control alarm activation, into waiting for manual intervention
State；The rotating speed of fill process centrifuge originally than relatively low, if still there is the situation that vibration is transfinited, illustrates that rotary drum is uneven
Weighing apparatus situation is extremely serious, and problem could effectively be solved by carrying out manual intervention.
Such as after material is full, vibration velocity Fr >=25mm/s is measured under feed rotation, then control device control main motor fortune
NHz drops in line frequency, and n spans are 5-10, feed supplement t seconds, t span 5-15, then control device control main motor operation
Frequency before frequency retrieval to feed supplement；Feed supplement can correct the uneven situation of material branch on rotatory drum wall sometimes, so as to reduce centrifugation
The vibration of machine；
If after a feed supplement, measuring vibration velocity Fr >=25mm/s, then again feed supplement to correcting material on rotatory drum wall
The uneven situation of branch, so as to reduce the vibration of centrifuge；Then detect vibration velocity, if still measure vibration velocity Fr >=
25mm/s, then feed supplement is to correct the uneven situation of material branch on rotatory drum wall again, so as to reduce the vibration of centrifuge；
If after 3 feed supplements, still measuring vibration velocity Fr >=25mm/s, illustrate that distribution device is damaged or rotary drum somewhere can
There can be material leakage (damaged by filter bag or other reasonses cause), then control device control alarm activation, same to timed unit
Main motor running frequency reduction 10-20Hz is controlled, current state is kept, it is to avoid feed liquid and material residue once enter in tapping mechanism,
Manual intervention is carried out, the feed liquid and material residue in rotary drum are transferred in other container, it is to avoid pollution material residue, disposal is also allowed for not
Material is filtered dry, human time is saved；
When in washing, de- liquid, if vibration velocity 25mm/s≤Fr<35mm/s, control device control main motor frequency
10Hz operations are reduced, apocarpy is kept, it is to avoid feed liquid and material residue once enter in tapping mechanism, control device control alarm dress
Startup is put, into waiting for manual intervention state；
If vibration velocity Fr >=35mm/s, control device control alarm activation, control device control main motor frequency
Rate is down to 15Hz operations, keeps apocarpy, it is to avoid feed liquid and material residue once enter in tapping mechanism, artificial into waiting for
Intervention states, the feed liquid and material residue in rotary drum are transferred in other container, it is to avoid pollution material residue, are also allowed for disposal and are not filtered dry
Material, saves human time.
Due to vibration measurement sensor be installed on case inside just to the position in the middle part of rotatory drum wall at, the degree of accuracy of measurement is more
It is high.
Brief description of the drawings
Fig. 1 is the schematic diagram of the normal startup optimization of centrifuge of the present invention.
Fig. 2 is the state of a control signal of centrifuge this method when fill process is just vibrated and transfinited.
Fig. 3 is centrifuge normal operation state of a control signal after the full boosting velocity procedure of material carries out the balance of feed supplement twice.
Fig. 4 is centrifuge vibration velocity Fr >=35mm/s during washing, de- liquid state of a control signal.
Embodiment
Specific embodiments of the present invention are described below in detail.
A kind of vibration protection method of centrifuge, is included in and electrically connected with control device, peace is set on centrifuge housing
Loaded on case inside just to the vibration measurement sensor and warning device at the position in the middle part of rotatory drum wall, then control device according to
Sensor measured value is controlled centrifuge main motor as follows：
1) during whole charging and washing, de- liquid：If vibration measurement sensor measures vibration velocity Fr<25mm/
S, centrifuge is run by setup program；
2) in fill process：
If vibration measurement sensor measures vibration velocity Fr >=25mm/s, charging is closed, control device controls main electricity
10Hz, control device control alarm activation, into waiting for manual intervention state drop in machine running frequency；
3) in the full boosting velocity procedure of material：
A：If after material is full, vibration measurement sensor measures vibration velocity Fr under feed rotation<25mm/s, rises to specified
Rotating speed, is carried out by setup program；
Such as after material is full, vibration velocity Fr >=25mm/s is measured under feed rotation, then control device control main motor fortune
Line frequency drop 10Hz, feed supplement t second, t span 5-15, then control device control main motor running frequency recover to feed supplement
Frequency；
B：If now measuring vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, centrifuge
Run by setup program；
If now measuring vibration velocity Fr >=25mm/s, control device control main motor running frequency drop 10Hz is mended
Expect t seconds, t span 5-15, then control device control main motor running frequency recovers to feed supplement frequency；
If now vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, and centrifuge is by setting
Program is run；
If still measuring vibration velocity Fr >=25mm/s, control device control main motor running frequency drop 10Hz, feed supplement t
Second, t span 5-15, then control device control main motor running frequency recover to feed supplement frequency；
C:If after 3 feed supplement, vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, centrifuges
Machine is run by setup program；
If after 3 feed supplements, still measuring vibration velocity Fr >=25mm/s, then control device controls alarm activation,
15Hz is down to timed unit control main motor running frequency, into waiting for manual intervention state；
4) when in washing, de- liquid, if vibration velocity 25mm/s≤Fr<35mm/s, control device control main motor frequency
Rate reduction 10Hz operations, control device control alarm activation, into waiting for manual intervention state；
If vibration velocity Fr >=35mm/s, control device control alarm activation, control device control main motor frequency
Rate is down to 15Hz operations, into waiting for manual intervention state.
Feed supplement number of times can also be set as more, can set as needed.But 3 feed supplements still vibrate it is excessive if, base
Originally it can be determined that as material leakage.
The principle and its effect of the above embodiments only illustrative the invention, and the implementation that part is used
Example, not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, not departing from wound of the present invention
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (2)
1. a kind of vibration protection method of centrifuge, is included in and sets the vibration electrically connected with control device to survey on centrifuge housing
Quantity sensor and warning device, then control device centrifuge main motor is controlled as follows according to sensor measured value：
1) during whole charging and washing, de- liquid：If vibration measurement sensor measures vibration velocity Fr<25mm/s, from
Scheming is run by setup program；
2) in fill process：
If vibration measurement sensor measures vibration velocity Fr >=25mm/s, charging, control device control main motor fortune are closed
5-10Hz, control device control alarm activation, into waiting for manual intervention state drop in line frequency；
3) in the full boosting velocity procedure of material：
A：If after material is full, vibration measurement sensor measures vibration velocity Fr under feed rotation<25mm/s, rises to specified turn
Speed, is carried out by setup program；
Such as after material is full, vibration velocity Fr >=25mm/s is measured under feed rotation, then control device control main motor operation frequency
Rate drop nHz, n spans be 5-10, feed supplement t second, t span 5-15, then control device control main motor running frequency
Recover to frequency before feed supplement；
B：If now measuring vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, and centrifuge is by setting
Determine program to be run；
If now measuring vibration velocity Fr >=25mm/s, control device control main motor running frequency drop nHz, n value models
Enclose for 5-10, feed supplement t seconds, t span 5-15, then control device control main motor running frequency recovers to feed supplement frequency
Rate；
If now vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, and centrifuge is by setup program
Run；
If still measuring vibration velocity Fr >=25mm/s, control device control main motor running frequency drop nHz, n spans
For 5-10, feed supplement t seconds, t span 5-15, then control device control main motor running frequency recover to feed supplement frequency；
C:If after 3 feed supplement, vibration velocity Fr<25mm/s, control device control main motor rises to rated speed, and centrifuge is pressed
Setting program is run；
If after 3 feed supplements, still measuring vibration velocity Fr >=25mm/s, then control device controls alarm activation, simultaneously
Control device control main motor running frequency is down to 10-15Hz, into waiting for manual intervention state；
4) when in washing, de- liquid, if vibration velocity 25mm/s≤Fr<35mm/s, control device control main motor frequency drop
Low 8-12Hz operation, control device control alarm activation, into waiting for manual intervention state；
If vibration velocity Fr >=35mm/s, control device control alarm activation, control device control main motor frequency drop
To 10-15Hz operations, into waiting for manual intervention state.
2. a kind of vibration protection method of centrifuge as claimed in claim 1, it is characterised in that：The vibration measurement sensor
Be installed on case inside just to the position in the middle part of rotatory drum wall at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594130.6A CN107297282B (en) | 2017-07-20 | 2017-07-20 | A kind of vibration protection method of centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710594130.6A CN107297282B (en) | 2017-07-20 | 2017-07-20 | A kind of vibration protection method of centrifuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107297282A true CN107297282A (en) | 2017-10-27 |
| CN107297282B CN107297282B (en) | 2019-06-25 |
Family
ID=60134371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710594130.6A Active CN107297282B (en) | 2017-07-20 | 2017-07-20 | A kind of vibration protection method of centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107297282B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070290A (en) * | 1976-03-04 | 1978-01-24 | Bird Machine Company, Inc. | Centrifuge with torsional vibration sensing and signaling |
| CN101042426A (en) * | 2005-10-10 | 2007-09-26 | 通用电气公司 | Methods and apparatus for frequency rectification |
| CN201454705U (en) * | 2009-06-15 | 2010-05-12 | 无锡市厚德自动化仪表有限公司 | Vibration protection device for centrifuge |
| CN103294044A (en) * | 2013-07-01 | 2013-09-11 | 南京工程学院 | Vibrating mechanical high-vibration-strength performance measuring and controlling device based on LabVIEW and measuring and controlling method thereof |
| CN205015080U (en) * | 2015-06-30 | 2016-02-03 | 北京长城华瑞科技有限公司 | Intelligence vibration monitoring module |
-
2017
- 2017-07-20 CN CN201710594130.6A patent/CN107297282B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070290A (en) * | 1976-03-04 | 1978-01-24 | Bird Machine Company, Inc. | Centrifuge with torsional vibration sensing and signaling |
| CN101042426A (en) * | 2005-10-10 | 2007-09-26 | 通用电气公司 | Methods and apparatus for frequency rectification |
| CN201454705U (en) * | 2009-06-15 | 2010-05-12 | 无锡市厚德自动化仪表有限公司 | Vibration protection device for centrifuge |
| CN103294044A (en) * | 2013-07-01 | 2013-09-11 | 南京工程学院 | Vibrating mechanical high-vibration-strength performance measuring and controlling device based on LabVIEW and measuring and controlling method thereof |
| CN205015080U (en) * | 2015-06-30 | 2016-02-03 | 北京长城华瑞科技有限公司 | Intelligence vibration monitoring module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107297282B (en) | 2019-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4072852A (en) | Digital computer monitoring and restart circuit | |
| CN110332102A (en) | Control method, device relevant device and the storage medium of automatic-discharging water pump | |
| CN107606300A (en) | A kind of plasma discharge rotary valve control method of food processor | |
| CN107297282B (en) | A kind of vibration protection method of centrifuge | |
| CN202741251U (en) | Efficient intellectualized solid-liquid separation system | |
| CN108730058A (en) | A kind of detection method and device of barometric pressure sensor | |
| JP2009262104A (en) | Continuous centrifuge | |
| CN208586065U (en) | Water treatment medicine tank with soda acid detection | |
| CN103246269B (en) | A kind of coal separation machine carrier chain integrated monitoring apparatus | |
| US4295781A (en) | Method for operating fluid machines in spinning-in-air mode | |
| CN208377140U (en) | A kind of cigarette aluminum-foil paper of packing machine surplus detection system | |
| CN212586752U (en) | Absorption tower pit liquid level control system | |
| CN210411166U (en) | Spiral shell machine crouches that helical blade wearing and tearing volume can be measured | |
| CN215718983U (en) | Steam turbine vibration monitoring safety device | |
| CN106323843B (en) | Dust remover cloth bag fault detector and detection method thereof | |
| CN206315347U (en) | A kind of detection means of turbofan qualification | |
| CN216410246U (en) | Inclination angle type belt operation monitoring system | |
| CN210545727U (en) | Operation control system of horizontal screw machine | |
| CN217512080U (en) | Novel centrifuge material level detector | |
| JPS55103432A (en) | Abnormal vibration diagnosis method for rotary machine | |
| JPH06300887A (en) | Failed fuel detector | |
| CN106679411B (en) | A kind of loading and unloading control method of rotary kiln | |
| JP2002317791A (en) | Reverse rotation detecting system | |
| JPH11262686A (en) | Method for measuring retention in centrifugal dehydrator and dehydration control method using the method | |
| JPS5746350A (en) | Floppy disk system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |