CN112815223A - On-line oil filtering equipment emergency cut-off protection device based on sensor - Google Patents
On-line oil filtering equipment emergency cut-off protection device based on sensor Download PDFInfo
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- CN112815223A CN112815223A CN202110290276.8A CN202110290276A CN112815223A CN 112815223 A CN112815223 A CN 112815223A CN 202110290276 A CN202110290276 A CN 202110290276A CN 112815223 A CN112815223 A CN 112815223A
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- Prior art keywords
- oil
- oil tank
- liquid level
- contact type
- type liquid
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- 238000001914 filtration Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000000523 sample Substances 0.000 claims abstract description 3
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 118
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010736 steam turbine oil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/02—Turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/20—Emergency
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The invention discloses an on-line oil filtering equipment emergency cut-off protection device based on a sensor, which comprises: the oil filter comprises an oil tank (1), an oil tank contact type liquid level meter (2), an online oil filtering safety device (3), an oil filter (4), a power supply box (5) and an oil port pipeline; the oil filter (4) is connected with the oil tank (1) through an oil port pipeline and a valve; the oil tank contact type liquid level meter (2) is arranged at the upper part of the oil tank (1), and a probe of the oil tank contact type liquid level meter extends into the oil tank (1); the oil tank contact type liquid level meter (2) is connected with an online oil filtering safety device (3); the power supply box (5) is connected with the online oil filtering safety device (3) and the oil filter (4). The invention can effectively reduce the risk caused by leakage of the oil filter, thereby ensuring the safe and stable operation of the steam turbine generator unit, and has the advantages of simple integral structure, convenient transformation and installation, simple operation and use, good stability and high reliability.
Description
Technical Field
The invention relates to the field of protection of a steam turbine oil system, in particular to an on-line oil filtering equipment emergency cut-off protection device based on a sensor.
Background
The oil station of the forced circulation oil system of the rotating equipment of the thermal power plant needs to be regularly filtered, and the online oil filtering equipment generally has a plurality of connecting pipelines and slipknots, so that due to the limitation of site conditions, bending stress exists in a part of pipelines, and the pipelines are steel wire hoses, so that the leakage risk exists; the connecting pipeline interface is mostly fixed by iron wires or hose clamps, and the fixing mode is not firm; when the oil filter operates, leakage can be caused due to the opening of a pipeline or the loosening of the fixing and the like.
In the report of No. 10 unit 2 month and 27 day unplanned outage event analysis of a certain thermal power plant in Hebei in 2020, because the oil filter work is carried out during the operation of the water supply pump unit, the connecting pipeline of the oil filter leaks, the oil level of an oil tank of a coupler of the water supply pump is low, and the water supply pump trips the unit to be not stopped; in a brother power plant in the system, due to the leakage of an oil filter interface, the differential pressure of a filter element is too large, and a filter screen material enters an oil system to cause multiple events such as unit shutdown, system pollution and the like, and even more, fire accidents are caused. In view of the particularity of oil filtering work, the emergency cut-off protection device for the online oil filtering equipment is provided, and the running reliability of the oil filtering equipment is ensured so as to guarantee the running safety of a system. At present, oil is filtered by manual on-site monitoring, when leakage occurs, an oil filter cannot be stopped and an entrance door cannot be closed in time, so that oil leakage accidents are caused, and a unit can be stopped in serious cases.
The utility model discloses a lubricating oil distributor in utility model for patent number CN208587720U, this scheme do not set up the cut-off system, detect that the lubricating oil liquid level can only play the warning effect when crossing low excessively.
Disclosure of Invention
The invention mainly aims to provide an on-line oil filtering equipment emergency cut-off protection device based on a sensor, and aims to control quick cut-off and shutdown of an oil filtering system and block an accident chain through liquid level detection so as to ensure that lubricating oil does not leak under abnormal conditions, improve the safety level of equipment, ensure the safe operation of a main system of a unit and reduce the consumption of human resources.
In order to achieve the above object, the present invention provides an on-line oil filtering apparatus emergency cut-off protection device based on a sensor, comprising: the system comprises an oil tank, an oil tank contact type liquid level meter, an online oil filtering safety device, an oil filter, a power box and an oil port pipeline; the oil filter is connected with the oil tank through an oil port pipeline and a valve; the oil tank contact type liquid level meter is arranged at the upper part of the oil tank, and a probe of the oil tank contact type liquid level meter extends into the oil tank; the oil tank contact type liquid level meter is connected with an online oil filtering safety device; the power box is connected with the online oil filtering safety device and the oil filter.
Preferably, an oil tank oil outlet electric door and an oil tank oil return electric door are arranged on the oil tank.
Preferably, the oil tank oil outlet electric door and the oil tank oil return electric door are electric valves, and the closing speed is high.
Preferably, a signal transmission device is arranged on the oil tank contact type liquid level meter.
Preferably, the online oil filtering safety device is provided with a signal receiving and feedback device, so that a signal received by the equipment can be effectively and timely fed back, and the effective execution of the whole process is ensured.
Based on the technical scheme, the following technical effects can be generated:
the embodiment of the invention provides an emergency cut-off protection device of an online oil filtering device based on a sensor, which is suitable for a lubricating oil filtering process. The device can effectively reduce the risk caused by leakage of oil filter of the oil filter, thereby ensuring the safe and stable operation of the turbo generator set, and has the advantages of simple integral structure, convenient modification and installation, simple operation and use, good stability and high reliability. When the inside liquid level of oil tank was detected to set value when oil tank contact level gauge (taking the feedback), can in time send feedback signal to protection device, protection device sends output signal to oil tank oil-out electrically operated gate and oil tank oil return electrically operated gate through judging, makes it close rapidly, the stability of oil tank liquid level has been guaranteed to very big degree to avoid causing other occurences of failure because the liquid level is low.
Drawings
Fig. 1 is a schematic structural diagram of an emergency cut-off protection device of an online oil filtering device based on a sensor.
The reference numbers illustrate:
1-oil tank, 2-oil tank contact type liquid level meter, 3-online oil filtering safety device, 4-oil filter, 5-power box, 6-oil tank oil outlet electric door, and 7-oil tank oil return electric door.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides an embodiment, and referring to fig. 1, fig. 1 is a schematic structural diagram of an emergency cut-off protection device of an online oil filtering equipment based on a sensor.
As shown in fig. 1, in the present embodiment, an on-line oil filtering apparatus emergency cut-off protection device based on a sensor mainly includes an oil tank 1, an oil tank contact type liquid level meter 2, an on-line oil filtering safety device 3, an oil filter 4, a power supply box 5, an oil tank oil outlet electric door 6, and an oil tank oil return electric door 7.
An oil tank oil outlet electric door 6 and an oil tank oil return electric door 7 are arranged on the oil tank 1, and an oil filter oil inlet pipeline is arranged between the oil tank oil outlet electric door 6 and an oil inlet pipe of the oil filter 4; an oil filter outlet oil pipeline is arranged between the oil outlet pipe of the oil filter 4 and the oil tank oil return electric door 7; the oil outlet electric door 6 of the oil tank is connected with the output end of the online oil filtering safety device 3; the oil tank oil return electric door 7 is connected with the output end of the online oil filtering safety device 3; the oil tank contact type liquid level meter 2 is connected with the input end of the online oil filtering safety device 3.
In the embodiment, the control system is dominated by the PLC, and the device is formed by integrating a controller, a cut-off module, a power supply module and a detection module. The controller 1 is designed to run/stop two modes; the cutting module is designed to enable a cutting valve 1 to be sleeved with the oil tank oil outlet electric door 8 and the oil tank oil return electric door 9, the cutting valve is a wafer ball valve, and the ball valve is driven by a 110V power supply of a controller; the power supply controller 1 is used for quickly disconnecting the power supply of the equipment after the power supply control module realizes system interruption; the detection module is designed into an oil tank contact type liquid level meter 2 (1 group) and is designed into a contact type; the signal cable and the cut-off valve control cable are arranged according to the distance of the oil filter 4.
In the embodiment of the invention, the protection working mode of the emergency cut-off device of the online oil filtering equipment based on the sensor is as follows: open oil tank and go out oily electrically operated gate 8, oil tank oil return electrically operated gate 9, start oil filter 4, when oil tank contact level gauge 2 (take the feedback) detected that 1 inside liquid level of oil tank reduces the set value, can in time send feedback signal to protection device, protection device through judging with output signal send oil tank to go out oily electrically operated gate 8 and oil tank oil return electrically operated gate 9, make it close rapidly.
This device can be very big degree the stability of having guaranteed the oil tank liquid level to avoid causing other occurences because the liquid level is low.
Claims (5)
1. The utility model provides an online oil filtering equipment emergency cut-off protection device based on sensor which characterized in that includes: the oil filter comprises an oil tank (1), an oil tank contact type liquid level meter (2), an online oil filtering safety device (3), an oil filter (4), a power supply box (5) and an oil port pipeline; the oil filter (4) is connected with the oil tank (1) through an oil port pipeline and a valve; the oil tank contact type liquid level meter (2) is arranged at the upper part of the oil tank (1), and a probe of the oil tank contact type liquid level meter extends into the oil tank (1); the oil tank contact type liquid level meter (2) is connected with an online oil filtering safety device (3); the power supply box (5) is connected with the online oil filtering safety device (3) and the oil filter (4).
2. The on-line oil filtering equipment emergency cut-off protection device based on the sensor according to claim 1, characterized in that the oil tank (1) is provided with an oil tank oil outlet electric door (6) and an oil tank oil return electric door (7).
3. The on-line oil filtering equipment emergency cut-off protection device based on the sensor as claimed in claim 2, characterized in that the oil tank oil outlet electric door (6) and the oil tank oil return electric door (7) are electric valves.
4. The on-line oil filtering equipment emergency cut-off protection device based on the sensor according to claim 1, characterized in that the tank contact level gauge (2) is provided with a signal transmission device.
5. A sensor-based on-line oil filtration equipment emergency shutdown protection device as claimed in claim 1, characterized in that the on-line oil filtration safety device (3) is provided with signal receiving and feedback means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290276.8A CN112815223A (en) | 2021-03-18 | 2021-03-18 | On-line oil filtering equipment emergency cut-off protection device based on sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110290276.8A CN112815223A (en) | 2021-03-18 | 2021-03-18 | On-line oil filtering equipment emergency cut-off protection device based on sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112815223A true CN112815223A (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110290276.8A Pending CN112815223A (en) | 2021-03-18 | 2021-03-18 | On-line oil filtering equipment emergency cut-off protection device based on sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112815223A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576542A (en) * | 2022-03-15 | 2022-06-03 | 西安热工研究院有限公司 | Threshold self-learning oil filter pipeline leakage detection and protection device and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101416A (en) * | 1992-09-21 | 1994-04-12 | Toshiba Corp | Steam turbine lubricating oil system |
| CN103670542A (en) * | 2012-09-04 | 2014-03-26 | 天津有序环境科技发展有限公司 | On-line filter lubricating oil two-box system |
| CN204881771U (en) * | 2015-07-08 | 2015-12-16 | 大唐阳城发电有限责任公司 | Oil level measuring device |
| CN205477778U (en) * | 2016-04-11 | 2016-08-17 | 新兴铸管股份有限公司 | Turbo -engine lube self preservation protects system |
| CN206016869U (en) * | 2016-08-31 | 2017-03-15 | 大唐湘潭发电有限责任公司 | A kind of low chaser protection device of the oil level for main frame grease-box |
| CN210448320U (en) * | 2019-06-28 | 2020-05-05 | 山西阳光焦化集团股份有限公司 | Power-loss protection device of oil filter |
| CN214580382U (en) * | 2021-03-18 | 2021-11-02 | 华电莱州发电有限公司 | On-line oil filtering equipment emergency cut-off protection device based on sensor |
-
2021
- 2021-03-18 CN CN202110290276.8A patent/CN112815223A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06101416A (en) * | 1992-09-21 | 1994-04-12 | Toshiba Corp | Steam turbine lubricating oil system |
| CN103670542A (en) * | 2012-09-04 | 2014-03-26 | 天津有序环境科技发展有限公司 | On-line filter lubricating oil two-box system |
| CN204881771U (en) * | 2015-07-08 | 2015-12-16 | 大唐阳城发电有限责任公司 | Oil level measuring device |
| CN205477778U (en) * | 2016-04-11 | 2016-08-17 | 新兴铸管股份有限公司 | Turbo -engine lube self preservation protects system |
| CN206016869U (en) * | 2016-08-31 | 2017-03-15 | 大唐湘潭发电有限责任公司 | A kind of low chaser protection device of the oil level for main frame grease-box |
| CN210448320U (en) * | 2019-06-28 | 2020-05-05 | 山西阳光焦化集团股份有限公司 | Power-loss protection device of oil filter |
| CN214580382U (en) * | 2021-03-18 | 2021-11-02 | 华电莱州发电有限公司 | On-line oil filtering equipment emergency cut-off protection device based on sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114576542A (en) * | 2022-03-15 | 2022-06-03 | 西安热工研究院有限公司 | Threshold self-learning oil filter pipeline leakage detection and protection device and method |
| CN114576542B (en) * | 2022-03-15 | 2023-11-03 | 西安热工研究院有限公司 | Threshold self-learning oil filter pipeline leakage detection and protection device and method |
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