CN116586207B - Centrifugal machine pushing frequency detection method and detection device thereof - Google Patents
Centrifugal machine pushing frequency detection method and detection device thereof Download PDFInfo
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- CN116586207B CN116586207B CN202310533470.3A CN202310533470A CN116586207B CN 116586207 B CN116586207 B CN 116586207B CN 202310533470 A CN202310533470 A CN 202310533470A CN 116586207 B CN116586207 B CN 116586207B
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- oil
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- centrifugal machine
- pipeline
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- 238000001514 detection method Methods 0.000 title claims abstract description 16
- 239000003921 oil Substances 0.000 claims abstract description 105
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 208000003464 asthenopia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Centrifugal Separators (AREA)
Abstract
The invention discloses a method and a mechanism for detecting the pushing times of a centrifugal machine, which are characterized by comprising the following steps: setting a section value of the pressure detector for detecting pressure change, and adjusting the outlet pressure of the pressure reducing valve to enable outlet pressure fluctuation to be within the section value of the pressure relay; when the hydraulic oil pushing device works, hydraulic oil is sent into the pushing mechanism through the hydraulic pump to drive the pushing mechanism to push materials; when hydraulic oil which is driven into the pushing mechanism returns to the oil tank through an oil return pipeline or is sent into the pushing mechanism through an oil inlet pipeline through a hydraulic pump, part of the hydraulic oil is delivered to a pressure detector after being depressurized through a pressure reducing valve, and the pressure detector records the pushing times through detecting the fluctuation of the pressure of the hydraulic oil. The pushing centrifugal machine can also ensure the accurate detection of the pushing times of the pushing mechanism of the centrifugal machine when pressure fluctuation is large during separation of different materials and different yields, thereby being capable of accurately detecting whether equipment is in normal operation or not and ensuring that the equipment is in normal and safe operation.
Description
Technical Field
The invention relates to detection of the pushing times of a centrifugal machine, in particular to a method and a device for detecting the pushing times of the centrifugal machine.
Background
The pushing times of the centrifugal machine is a very important parameter in solid-liquid separation, plays a decisive role in separation effect and yield, and also is an important index for detecting whether equipment normally operates in automatic control of separation equipment, in particular to whether pushing normally plays a vital role in safety of the equipment in the separation process of flammable and explosive materials;
in the prior art, the detection of the pushing times basically comprises modes of manual counting, counting by an electromagnetic induction sensor, detection of the pushing times by a pressure relay and the like, but the modes have some technical problems, and the specific steps are as follows:
1. by means of manual counting, visual fatigue is easily caused by counting through eyes, missing or multiple counting is easily caused once visual fatigue is caused, counting is inaccurate, each device needs to be independently provided with an operator for real-time monitoring, labor intensity is high, and automatic control cannot be achieved;
2. when the electromagnetic induction sensor detects, as the magnet is arranged in the oil cylinder, when the temperature of hydraulic oil is higher than 70 ℃, the magnet can be demagnetized, so that the electromagnetic induction sensor cannot sense magnetism and fails, and the pushing times cannot be accurately counted;
3. the method is characterized in that the number of times of pushing is measured by pressure change generated when the oil cylinder is in reversing by adopting the pressure relay, but the pressure change range is large when the oil cylinder is in reversing due to the change of yield and the change of materials in the mode, and the detection range of the pressure relay is a set range, so that the number of times of pushing is accurate when the pressure change range is in the detection range of the pressure relay in reversing, and the number of times of pushing is inaccurate when the pressure change range is beyond the detection range of the pressure relay in reversing;
therefore, in order to enable the equipment to operate normally and safely, a detection device capable of accurately counting the pushing times needs to be designed. Therefore, a method and a device for detecting the pushing times of the centrifugal machine are provided.
Disclosure of Invention
The invention aims to solve the problems and provides a method and a device for detecting the pushing times of a centrifugal machine.
In order to achieve the above purpose, the invention provides a method for detecting the pushing times of a centrifugal machine, which is characterized by comprising the following steps:
1) Adjusting and setting a section value of the detected pressure change capable of enabling the pressure detector to send out a signal;
2) Regulating the outlet pressure of the pressure reducing valve according to the interval value of the pressure detector to enable the outlet pressure fluctuation to be within the interval value of the pressure detector;
3) The centrifugal machine works, and the hydraulic pump sends hydraulic oil into the pushing mechanism to drive the pushing mechanism to push materials;
4) When hydraulic oil pumped into the pushing mechanism returns to the oil tank through an oil return pipeline or is sent into the pushing mechanism through an oil inlet pipeline by a hydraulic pump, part of the hydraulic oil is depressurized by a pressure reducing valve and then is sent to a pressure detector;
5) The hydraulic oil drives the pressure detector to send out a signal for recording the number of pushing materials to the PLC control system for counting.
Further preferably, the signal of the number of times of recording pushing the material is sent out by the hydraulic oil driving pressure detector to the PLC control system for counting and replacing, the signal of the number of times of recording pushing the material is sent out by the hydraulic oil driving pressure detector to the counter for counting or replacing, the signal of the number of times of recording pushing the material is sent out by the hydraulic oil driving pressure detector to the signal processor, and the signal is uploaded to the cloud for counting and storing through the network communication module.
Further preferably, the method further comprises the step that the hydraulic oil drives the pressure detector to send out a signal for recording the pushing times to the PLC control system for counting, and the signal is uploaded to the cloud.
Further preferably, the pressure detector is a pressure relay or a pressure transmitter.
Further preferably, the processor comprises an MCU module and a network communication module.
Further preferably, the centrifugal machine pushing frequency monitoring system further comprises terminal equipment for reading data from the cloud end and for remotely monitoring the centrifugal machine pushing frequency.
The detecting device is characterized by comprising an oil tank, an oil inlet pipeline, an oil return pipeline, a pressure reducing valve and a pressure detector, wherein the oil inlet pipeline is connected with the oil tank and the pushing mechanism for supplying oil; and the oil return pipeline is also provided with a cooler and an oil return filter.
Further preferably, the oil inlet pipeline is connected with an oil inlet filter and a hydraulic pump; the oil inlet pipeline and the oil tank are also connected with a branch; and the branch is also connected with an oil supply branch pipeline for supplying lubricating oil to the bearing in the centrifugal machine, and the oil supply branch pipeline is connected with a branch loop with the oil tank.
Further preferably, the branch is connected with a speed regulating valve; the oil supply branch pipeline is also connected with a speed regulating valve.
Further preferably, an overflow valve is connected between the branch and the oil tank through a pipeline.
By the arrangement of the invention, the pushing frequency of the pushing mechanism of the centrifugal machine can be accurately detected when pressure fluctuation caused by separating different materials and different yields is large, so that whether the equipment operates normally or not can be accurately detected, and the equipment can operate normally and safely;
by additionally arranging the pressure reducing valve in front of the pressure detector, the outlet pressure of the pressure reducing valve is set through the setting of the pressure reducing valve, so that the outlet pressure is basically constant, and pressure change generated during reversing of the pushing mechanism is always in the detection range of the pressure detector after the pressure of the pressure reducing valve is reduced, so that accurate counting is performed.
Drawings
FIG. 1 is a schematic flow diagram of a system in which a pressure relief valve and a pressure detector are disposed on an oil return line in accordance with the present invention;
FIG. 2 is a schematic flow diagram of a system in which a pressure reducing valve and a pressure detector are provided on an oil feed line in accordance with the present invention.
Legend description: 1. an oil tank; 2. an oil inlet pipeline; 21. an oil inlet filter; 22. a hydraulic pump; 23. a branch; 24. an oil supply branch line; 25. a branch circuit; 26. an overflow valve; 3. an oil return pipeline; 31. a cooler; 32. an oil return filter; 4. a pressure reducing valve; 5. a pressure detector; 6. and a speed regulating valve.
Detailed Description
The invention further provides a method and a device for detecting the pushing times of a centrifugal machine.
Referring to fig. 1-2, a detecting device for detecting the number of pushing times of a centrifugal machine is characterized in that the detecting device comprises an oil tank 1, an oil inlet pipeline 2 for connecting the oil tank 1 and the centrifugal machine to supply oil to a centrifugal machine pushing mechanism, an oil return pipeline 3, a pressure reducing valve 4 and a pressure detector 5, wherein the pressure reducing valve 4 and the pressure detector 5 are arranged on the oil return pipeline 3;
by the arrangement of the invention, the pushing frequency of the pushing mechanism of the centrifugal machine can be accurately detected when pressure fluctuation caused by separating different materials and different yields is large, so that whether the equipment operates normally or not can be accurately detected, and the equipment can operate normally and safely;
by adding the pressure reducing valve 4 in front of the pressure detector 5, the outlet pressure of the pressure reducing valve 4 is set by the setting of the pressure reducing valve 4, so that the outlet pressure is basically constant, and therefore, the pressure change generated when the pushing mechanism changes direction is always within the detection range section of the pressure detector 5 after the pressure is reduced by the pressure reducing valve 4, and accurate counting is performed.
Further, the oil inlet pipeline 2 is connected with an oil inlet filter 21 and a hydraulic pump 22; the oil inlet pipeline 2 and the oil tank 1 are also connected with a branch 23; the branch 23 is also connected with an oil supply branch pipeline 24 for supplying lubricating oil to the bearing in the centrifugal machine, and the oil supply branch pipeline 24 and the oil tank 1 are connected with a branch loop 25;
by providing the oil supply branch pipe 24, a part of the lubricating oil is supplied to the bearings in the centrifuge through the oil supply branch pipe 24, and the redundant lubricating oil is returned to the oil tank 1 through the branch circuit 25 for lubrication of the bearings.
Further, the branch 23 is connected with a speed regulating valve 6; the oil supply branch pipe 24 is also connected with a speed regulating valve 6; through the arrangement of the speed regulating valve 6, the flow is controlled.
Further, an overflow valve 26 is connected between the branch 23 and the oil tank 1 through a pipeline.
Further, a cooler 31 and an oil return filter 32 are also installed on the oil return pipeline 3; oil for driving the pushing mechanism to act is filtered through the oil return filter 32 after being cooled by the cooler 31 before returning to the oil tank 1, and is returned to the oil tank 1 after being filtered, so that impurities are prevented from being brought into the oil tank 1, and the service life of lubricating oil is prolonged.
The invention is used when: setting an interval value for detecting pressure change by the pressure detector 5; then, the outlet pressure of the pressure reducing valve 4 is regulated according to the interval value, so that the outlet pressure fluctuation is always within the interval value of the pressure detector 5, and the pressure fluctuation during each reversing can be detected;
when the centrifugal machine performs pushing work, oil in the oil tank 1 is fed into the centrifugal machine pushing mechanism through an oil inlet pipeline by the hydraulic pump 22 to drive the pushing mechanism to perform pushing work, and meanwhile, one path of lubricating oil is separated out and is pumped into a bearing of the centrifugal machine through the oil supply branch pipeline 24 to lubricate a bearing;
when the pushing mechanism reciprocates, oil flows back into the oil tank 1 through an oil return pipeline, the oil is cooled by the cooler 31 and then filtered by the oil return filter 32, meanwhile, one path of oil is separated to the pressure reducing valve 4, the oil is reduced by the pressure reducing valve 4 and then flows to the pressure detector 5, and the pressure detector 5 counts by detecting pressure fluctuation generated when the pushing mechanism commutates;
when the pressure reducing valve 4 and the pressure detector are installed on the oil feed line: when the hydraulic pump 22 sends the oil in the oil tank 1 into the centrifugal pushing mechanism, one path of the oil is separated and flows to the pressure reducing valve 4, the oil is reduced by the pressure reducing valve 4 and then flows to the pressure detector 5, and the pressure detector 5 counts by detecting pressure fluctuation generated when the pushing mechanism changes direction; during oil return, the oil is cooled by the cooler 31 through an oil return pipeline, filtered by the oil return filter 32 and then flows back into the oil tank;
when the pressure detector is a pressure relay and a counter connected with the pressure relay, the pressure relay senses fluctuation of hydraulic oil and outputs an electric signal to the counter, the counter counts up by 1 after receiving the electric signal, and an operator can know the pushing times through the counter on site;
when the pressure detector is a pressure relay and a PLC (programmable logic controller) connected with the pressure relay, the pressure relay senses fluctuation of hydraulic oil and outputs an electric signal to the PLC, the PLC processes the electric signal and converts the electric signal into a count value, the count value is displayed on a display, the count value can be transmitted to a cloud end through a network, an operator can enter the cloud end through terminal equipment to remotely check data and compare the data with the standard pushing times of the equipment, and whether pushing equipment operates normally is detected;
when the pressure detector is a pressure relay and a processor connected with the pressure relay, the pressure relay senses fluctuation of hydraulic oil and outputs an electric signal to the processor, the processor processes and converts the electric signal into a count value through the MCU module and then sends the count value to the cloud through the network communication module, and an operator can remotely monitor the pushing equipment through the terminal equipment;
when the pressure detector is a pressure transmitter and a PLC (programmable logic controller) connected with the pressure transmitter, the pressure transmitter senses fluctuation of hydraulic oil to output an electric signal to the PLC, the PLC processes the electric signal and converts the electric signal into a count value, the count value is displayed on a display, and the count value can be transmitted to a cloud end through a network;
when the pressure detector is a pressure transmitter and a processor connected with the pressure transmitter, the pressure relay senses fluctuation of hydraulic oil and outputs an electric signal to the processor, the processor processes and converts the electric signal into a count value through the MCU module and then sends the count value to the cloud through the network communication module, and an operator can remotely monitor the pushing equipment through the terminal equipment;
the terminal equipment can be a handheld terminal equipment such as a computer and a mobile phone which can enter the cloud through a network.
The scope of protection of the present invention is not limited to the above embodiments and variations thereof. Conventional modifications and substitutions by those skilled in the art based on the content of the present embodiment fall within the protection scope of the present invention.
Claims (4)
1. A method for detecting the pushing times of a centrifugal machine is characterized by comprising the following steps:
1) Adjusting the interval value of the pressure change which is detected and can be signaled by a pressure detector arranged on an oil inlet pipeline or an oil return pipeline;
2) Regulating the outlet pressure of a pressure reducing valve which is arranged on an oil inlet pipeline or an oil return pipeline and corresponds to the pressure detector according to the interval value of the pressure detector, so that the outlet pressure fluctuation is within the interval value of the pressure detector;
3) The centrifugal machine works, and the hydraulic pump sends hydraulic oil into the pushing mechanism to drive the pushing mechanism to push materials;
4) When the pushing mechanism reciprocates, part of hydraulic oil pumped into the pushing mechanism returns to the oil tank through an oil return pipeline or is sent into the pushing mechanism through an oil inlet pipeline by a hydraulic pump, and is delivered to the pressure detector after being depressurized by a pressure reducing valve; the pressure detector counts by detecting pressure fluctuation generated when the pushing mechanism commutates;
5) The hydraulic oil drives the pressure detector to send a signal for recording the number of pushing times to the PLC controller for counting, the PLC controller processes the electric signal and converts the electric signal into a counting value, the counting value is displayed on the display, and an operator can enter the cloud end through the network to remotely check data through the terminal equipment and compare the data with the standard pushing times of the pushing equipment, so that whether the pushing equipment operates normally is detected;
the detection device adopted in the detection method comprises an oil tank (1), an oil inlet pipeline (2) for connecting the oil tank (1) and the pushing mechanism to supply oil, an oil return pipeline (3), a pressure reducing valve (4) and a pressure detector (5), wherein the pressure reducing valve (4) and the pressure detector are arranged on the oil return pipeline (3) or the oil inlet pipeline (2); a cooler (31) and an oil return filter (32) are also arranged on the oil return pipeline (3); an oil inlet filter (21) and a hydraulic pump (22) are connected to the oil inlet pipeline (2); the oil inlet pipeline (2) and the oil tank (1) are also connected with a branch (23); the branch (23) is also connected with an oil supply branch pipeline (24) for supplying lubricating oil to the bearing in the centrifugal machine, the oil supply branch pipeline (24) is connected with the oil tank (1) to form a branch loop (25), and the pressure detector is a pressure relay or a pressure transmitter.
2. The method for detecting the pushing times of the centrifugal machine according to claim 1, wherein the method comprises the following steps: the system also comprises terminal equipment for reading data from the cloud end and for remotely monitoring the pushing times of the centrifugal machine.
3. The method for detecting the pushing times of the centrifugal machine according to claim 1, wherein the method comprises the following steps: the branch (23) is connected with a speed regulating valve (6); the oil supply branch pipe (24) is also connected with a speed regulating valve (6).
4. The method for detecting the pushing times of the centrifugal machine according to claim 1, wherein the method comprises the following steps: an overflow valve (26) is also connected between the branch (23) and the oil tank (1) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310533470.3A CN116586207B (en) | 2023-05-12 | 2023-05-12 | Centrifugal machine pushing frequency detection method and detection device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310533470.3A CN116586207B (en) | 2023-05-12 | 2023-05-12 | Centrifugal machine pushing frequency detection method and detection device thereof |
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| CN116586207A CN116586207A (en) | 2023-08-15 |
| CN116586207B true CN116586207B (en) | 2024-03-26 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173303A (en) * | 1976-06-15 | 1979-11-06 | Cyphelly Ivan J | Hydraulic push drive for pusher centrifuges |
| CN201579116U (en) * | 2010-02-02 | 2010-09-15 | 上海瑞威机电设备有限公司 | Overflow-free oil supply system of double-step piston pusher centrifuge |
| CN201596575U (en) * | 2009-12-14 | 2010-10-06 | 成都天保重型装备股份有限公司 | Hydraulic pusher device of piston-pusher centrifuge |
| CN201697801U (en) * | 2010-01-19 | 2011-01-05 | 浙江轻机实业有限公司 | Centrifuge test run hydraulic device simulating load state |
| WO2012105917A1 (en) * | 2011-02-01 | 2012-08-09 | Galipoglu Hidromas Hidrolik Otomotiv Sanayi Ve Ticaret Anonim Sirketi | Electronic pressure measuring and recording device |
| CN203304080U (en) * | 2013-06-18 | 2013-11-27 | 上海化工机械厂有限公司 | Piton material pushing centrifugal machine |
| CN207229502U (en) * | 2017-09-11 | 2018-04-13 | 中钢集团西安重机有限公司 | A kind of hydraulic system |
| CN211160244U (en) * | 2019-12-11 | 2020-08-04 | 广州广重分离机械有限公司 | Full-automatic control piston pushing centrifugal device |
-
2023
- 2023-05-12 CN CN202310533470.3A patent/CN116586207B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4173303A (en) * | 1976-06-15 | 1979-11-06 | Cyphelly Ivan J | Hydraulic push drive for pusher centrifuges |
| CN201596575U (en) * | 2009-12-14 | 2010-10-06 | 成都天保重型装备股份有限公司 | Hydraulic pusher device of piston-pusher centrifuge |
| CN201697801U (en) * | 2010-01-19 | 2011-01-05 | 浙江轻机实业有限公司 | Centrifuge test run hydraulic device simulating load state |
| CN201579116U (en) * | 2010-02-02 | 2010-09-15 | 上海瑞威机电设备有限公司 | Overflow-free oil supply system of double-step piston pusher centrifuge |
| WO2012105917A1 (en) * | 2011-02-01 | 2012-08-09 | Galipoglu Hidromas Hidrolik Otomotiv Sanayi Ve Ticaret Anonim Sirketi | Electronic pressure measuring and recording device |
| CN203304080U (en) * | 2013-06-18 | 2013-11-27 | 上海化工机械厂有限公司 | Piton material pushing centrifugal machine |
| CN207229502U (en) * | 2017-09-11 | 2018-04-13 | 中钢集团西安重机有限公司 | A kind of hydraulic system |
| CN211160244U (en) * | 2019-12-11 | 2020-08-04 | 广州广重分离机械有限公司 | Full-automatic control piston pushing centrifugal device |
Non-Patent Citations (1)
| Title |
|---|
| 赵新泽等.《液压传动基础》.华中科技大学出版社（中国•武汉）,2012,第98-100页. * |
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