CN112576476B - Oil pressure is low from opening high alarm pump station controlling means - Google Patents
Oil pressure is low from opening high alarm pump station controlling means Download PDFInfo
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- CN112576476B CN112576476B CN202011365222.5A CN202011365222A CN112576476B CN 112576476 B CN112576476 B CN 112576476B CN 202011365222 A CN202011365222 A CN 202011365222A CN 112576476 B CN112576476 B CN 112576476B
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- oil pump
- auxiliary
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- contactor
- relay
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses an oil pressure low self-starting high alarm pump station control device, which comprises a main loop and a control loop, wherein the main loop comprises a total circuit breaker, an inlet of the total circuit breaker is connected with a three-phase alternating current power supply, an outlet of the total circuit breaker is respectively connected with a main contact of a main oil pump contactor and a main contact of an auxiliary oil pump contactor in parallel, the main contact of the main oil pump contactor is connected with a main oil pump, and the main contact of the auxiliary oil pump contactor is connected with an auxiliary oil pump; the control loop comprises a manual-automatic switch, a main oil pump stop button, a main oil pump start button, a main oil pump indicator lamp, an auxiliary oil pump stop button, an auxiliary oil pump start button, an auxiliary oil pump indicator lamp, a first relay, a second relay, a third relay, a time relay, a stop button and a buzzer; the main oil pump is provided with a main pressure gauge, and the auxiliary oil pump is provided with an auxiliary pressure gauge; the device can automatically start the auxiliary oil pump when the main oil pump fails, can give an alarm when the main oil pump runs in overpressure, has a simple structure and is convenient to use, and the device can adapt to the needs of various sites.
Description
Technical Field
The invention relates to the technical field of hydraulic pump station control, in particular to a low-oil-pressure self-starting high-alarm pump station control device.
Background
The high-pressure oil pump station is a device commonly used in the chemical industry, each set of oil pump station bears some oil moving equipment or a plurality of gas making furnace valves to obtain oil supply, each set of oil pump station comprises a main oil pump and an auxiliary oil pump, in some occasions, when the main oil pump fails, the oil pressure is too low, if the main oil pump cannot be found in time, some oil moving equipment does not act or the oil moving valves do not open to cause equipment failure or furnace shutdown risk, and unplanned equipment shutdown or furnace shutdown can cause great potential safety hazard to production.
Disclosure of Invention
The invention aims to provide the oil pressure low self-starting high alarm pump station control device which can automatically start the auxiliary oil pump when the main oil pump fails, can give an alarm when the main oil pump runs in overpressure, has a simple structure, is convenient to use and can adapt to the needs of various sites.
The technical scheme adopted for solving the technical problems is as follows:
the oil pressure low self-starting high alarm pump station control device comprises a main loop and a control loop, wherein the main loop comprises a total circuit breaker, an inlet of the total circuit breaker is connected with a three-phase alternating current power supply, an outlet of the total circuit breaker is respectively connected with a main contact of a main oil pump contactor and a main contact of an auxiliary oil pump contactor in parallel, the main contact of the main oil pump contactor is connected with a main oil pump, and the main contact of the auxiliary oil pump contactor is connected with an auxiliary oil pump;
the control loop comprises a manual-automatic switch, a main oil pump stop button, a main oil pump start button, a main oil pump indicator lamp, an auxiliary oil pump stop button, an auxiliary oil pump start button, an auxiliary oil pump indicator lamp, a first relay, a second relay, a third relay, a time relay, a stop button and a buzzer;
the main oil pump is provided with a main pressure gauge, and the auxiliary oil pump is provided with an auxiliary pressure gauge;
the main oil pump stop button is sequentially connected with the main oil pump start button and the coil of the main oil pump contactor in series to form a first branch, and two ends of the first branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the main oil pump contactor is connected with the main oil pump starting button in parallel; the manual-automatic change-over switch is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor in series and then connected with two ends of the first auxiliary normally-open contact of the main oil pump contactor in parallel, and the first normally-open contact of the second relay is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor in parallel; the main oil pump indicator lamp is connected with the coil of the main oil pump contactor in parallel;
the auxiliary oil pump stop button is sequentially connected with the auxiliary oil pump start button and the coil of the auxiliary oil pump contactor in series to form a second branch, and two ends of the second branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the auxiliary oil pump contactor is connected with the auxiliary oil pump starting button in parallel; the manual-automatic change-over switch is connected with the first auxiliary normally-closed contact of the main oil pump contactor in series and then connected with two ends of the first auxiliary normally-open contact of the auxiliary oil pump contactor in parallel, and the second normally-open contact of the second relay is connected with the first auxiliary normally-closed contact of the main oil pump contactor in parallel; the auxiliary oil pump indicator lamp is connected with the coil of the auxiliary oil pump contactor in parallel;
the second auxiliary normally open contact of the main oil pump contactor, the second auxiliary normally open contact of the auxiliary oil pump contactor, the stop button and the first relay are sequentially connected in series to form a third branch, and two ends of the third branch are respectively connected with a live wire and a zero wire; the normally open contact of the third relay is connected in parallel with the two ends of the second auxiliary normally open contact of the main oil pump contactor and the two ends of the second auxiliary normally open contact of the auxiliary oil pump contactor;
the public end of the main pressure gauge is connected with a live wire, and the high limit contact of the main pressure gauge is connected to the public end of the second auxiliary normally open contact and the stop button of the auxiliary oil pump contactor; the low limit contact of the main pressure gauge, the coil of the time relay and the low limit contact of the auxiliary pressure gauge are connected in series; the common end of the auxiliary pressure gauge is connected with a zero line; the high limit contact of the auxiliary pressure gauge is connected with one end of the third relay, and the other end of the third relay is connected with the live wire;
the normally open contact of the time relay is connected with the coil of the second relay in series to form a fourth branch, and two ends of the fourth branch are respectively connected with a live wire and a zero wire;
the normally open contact of the first relay is connected with the buzzer in series to form a fifth branch, and two ends of the fifth branch are respectively connected with the live wire and the zero wire.
The pressure gauge has the beneficial effects that when the pressure gauge detects that the pressure of the oil pump is in high limit, a Gao Xianwei contact of the pressure gauge is closed, so that the indicator lamp and the buzzer are electrified to give an alarm; when the pressure of the main oil pump is too low, the low limit contact of the pressure gauge is closed, and the auxiliary oil pump is started automatically, and vice versa; the use is convenient, the severe use environment is not needed, and the device can adapt to the needs of various fields.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
fig. 1 is a schematic diagram of the circuit principle of the present invention.
Description of the embodiments
As shown in fig. 1, the invention provides a low oil pressure self-starting high alarm pump station control device, which comprises a main loop and a control loop, wherein the main loop comprises a total breaker Q1, an inlet of the total breaker Q1 is connected with a three-phase alternating current power supply, an outlet of the total breaker Q1 is respectively connected with a main contact of a main oil pump contactor K1 and a main contact of an auxiliary oil pump contactor K2 in parallel, the main contact of the main oil pump contactor K1 is connected with a main oil pump M1, and the main contact of the auxiliary oil pump contactor is connected with an auxiliary oil pump M2.
The control loop comprises a manual-automatic change-over switch S9, a main oil pump stop button S1, a main oil pump starting button S2, a main oil pump indicator lamp H1, an auxiliary oil pump stop button S3, an auxiliary oil pump starting button S4, an auxiliary oil pump indicator lamp H2, a first relay K3, a second relay K5, a third relay K6, a time relay K4 and a stop button S6.
The main oil pump is provided with a main pressure gauge S7, and the auxiliary oil pump is provided with an auxiliary pressure gauge S8.
The main oil pump stop button S1 is sequentially connected with the main oil pump start button S2 and the coil of the main oil pump contactor K1 in series to form a first branch, and two ends of the first branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the main oil pump contactor K1 is connected with the main oil pump starting button S2 in parallel; the manual automatic change-over switch S9 is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor K2 in series and then connected with the two ends of the first auxiliary normally-open contact of the main oil pump contactor K1 in parallel, and the first normally-open contact of the second relay K5 is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor K2 in parallel; the main oil pump indicator lamp H1 is connected with the coil of the main oil pump contactor K1 in parallel. The fuse F3 is connected in series with the live wire.
The auxiliary oil pump stop button S3 is sequentially connected with the auxiliary oil pump start button S4 and the coil of the auxiliary oil pump contactor K2 in series to form a second branch, and two ends of the second branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the auxiliary oil pump contactor K2 is connected with the auxiliary oil pump starting button S4 in parallel; the manual automatic transfer switch S9 is connected with the first auxiliary normally-closed contact of the main oil pump contactor K1 in series and then connected with two ends of the first auxiliary normally-open contact of the auxiliary oil pump contactor K2 in parallel, and the second normally-open contact of the second relay K5 is connected with the first auxiliary normally-closed contact of the main oil pump contactor K1 in parallel; the auxiliary oil pump indicator lamp H2 is connected in parallel with the coil of the auxiliary oil pump contactor K2.
The second auxiliary normally open contact of the main oil pump contactor K1, the second auxiliary normally open contact of the auxiliary oil pump contactor K2, the stop button S6 and the first relay K3 are sequentially connected in series to form a third branch, and two ends of the third branch are respectively connected with a live wire and a zero wire; the normally open contact of the third relay K6 is connected in parallel with two ends of the second auxiliary normally open contact of the main oil pump contactor K1 and the second auxiliary normally open contact of the auxiliary oil pump contactor K2.
The public end of the main pressure gauge S7 is connected with a live wire, and the high limit contact of the main pressure gauge S7 is connected to the public end of the second auxiliary normally open contact of the auxiliary oil pump contactor K2 and the stop button S6; the low limit contact of the main pressure gauge S7, the coil of the time relay K4 and the low limit contact of the auxiliary pressure gauge S8 are connected in series; the common end of the auxiliary pressure gauge S8 is connected with a zero line; the high limit contact of the auxiliary pressure gauge S8 is connected with one end of the third relay K6, and the other end of the third relay K6 is connected with a live wire.
The normally open contact of the time relay K4 is connected with the coil of the second relay K5 in series to form a fourth branch, and two ends of the fourth branch are respectively connected with a live wire and a zero wire.
The normally open contact of the first relay K3 is connected with the buzzer H3 in series to form a fifth branch, and two ends of the fifth branch are respectively connected with a live wire and a zero wire.
When the automatic switching device is used, the total breaker Q1 is closed, the manual-automatic switching switch S9 is turned into a manual state, the main oil pump starting button S2 is pressed, the coil of the main oil pump contactor K1 is powered on, the main contact of the main oil pump contactor K1 is closed, and the main oil pump M1 is started; then the manual-automatic change-over switch S9 is turned into an automatic state; if the main pressure gauge S7 detects that the pressure is too high, a high limit contact of the main pressure gauge S7 is closed, the first relay K3 is electrified, and the buzzer H3 gives an alarm; if the main pressure gauge S7 detects that the pressure is too low, the low limit contact of the main pressure gauge S7 is closed, at the moment, the low limit contact of the auxiliary pressure gauge S8 is also closed, the time relay K4 is powered on, the normally open contact of the time relay K4 is closed, the second relay K5 is powered on, the normally open contact of the second relay K5 is closed, the coil of the auxiliary oil pump contactor K2 is powered on, the main contact of the auxiliary oil pump contactor K2 is closed, the auxiliary oil pump M2 is started, so that an alarm is given when the pressure is too high, and the other pump is started when the pressure is too low. Conversely, the auxiliary oil pump is started first, and the working process is similar and is not repeated here.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention in any way; any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or modifications to equivalent embodiments using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, which do not depart from the technical solution of the present invention, still fall within the scope of the technical solution of the present invention.
Claims (1)
1. The oil pressure low self-starting high alarm pump station control device is characterized by comprising a main loop and a control loop, wherein the main loop comprises a main breaker, an inlet of the main breaker is connected with a three-phase alternating current power supply, an outlet of the main breaker is respectively connected with a main contact of a main oil pump contactor and a main contact of an auxiliary oil pump contactor in parallel, the main contact of the main oil pump contactor is connected with a main oil pump, and the main contact of the auxiliary oil pump contactor is connected with an auxiliary oil pump;
the control loop comprises a manual-automatic switch, a main oil pump stop button, a main oil pump start button, a main oil pump indicator lamp, an auxiliary oil pump stop button, an auxiliary oil pump start button, an auxiliary oil pump indicator lamp, a first relay, a second relay, a third relay, a time relay, a stop button and a buzzer;
the main oil pump is provided with a main pressure gauge, and the auxiliary oil pump is provided with an auxiliary pressure gauge;
the main oil pump stop button is sequentially connected with the main oil pump start button and the coil of the main oil pump contactor in series to form a first branch, and two ends of the first branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the main oil pump contactor is connected with the main oil pump starting button in parallel; the manual-automatic change-over switch is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor in series and then connected with two ends of the first auxiliary normally-open contact of the main oil pump contactor in parallel, and the first normally-open contact of the second relay is connected with the first auxiliary normally-closed contact of the auxiliary oil pump contactor in parallel; the main oil pump indicator lamp is connected with the coil of the main oil pump contactor in parallel;
the auxiliary oil pump stop button is sequentially connected with the auxiliary oil pump start button and the coil of the auxiliary oil pump contactor in series to form a second branch, and two ends of the second branch are respectively connected with a live wire and a zero wire; the first auxiliary normally open contact of the auxiliary oil pump contactor is connected with the auxiliary oil pump starting button in parallel; the manual-automatic change-over switch is connected with the first auxiliary normally-closed contact of the main oil pump contactor in series and then connected with two ends of the first auxiliary normally-open contact of the auxiliary oil pump contactor in parallel, and the second normally-open contact of the second relay is connected with the first auxiliary normally-closed contact of the main oil pump contactor in parallel; the auxiliary oil pump indicator lamp is connected with the coil of the auxiliary oil pump contactor in parallel;
the second auxiliary normally open contact of the main oil pump contactor, the second auxiliary normally open contact of the auxiliary oil pump contactor, the stop button and the first relay are sequentially connected in series to form a third branch, and two ends of the third branch are respectively connected with a live wire and a zero wire; the normally open contact of the third relay is connected in parallel with the two ends of the second auxiliary normally open contact of the main oil pump contactor and the two ends of the second auxiliary normally open contact of the auxiliary oil pump contactor;
the public end of the main pressure gauge is connected with a live wire, and the high limit contact of the main pressure gauge is connected to the public end of the second auxiliary normally open contact and the stop button of the auxiliary oil pump contactor; the low limit contact of the main pressure gauge, the coil of the time relay and the low limit contact of the auxiliary pressure gauge are connected in series; the common end of the auxiliary pressure gauge is connected with a zero line; the high limit contact of the auxiliary pressure gauge is connected with one end of the third relay, and the other end of the third relay is connected with the live wire;
the normally open contact of the time relay is connected with the coil of the second relay in series to form a fourth branch, and two ends of the fourth branch are respectively connected with a live wire and a zero wire;
the normally open contact of the first relay is connected with the buzzer in series to form a fifth branch, and two ends of the fifth branch are respectively connected with the live wire and the zero wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365222.5A CN112576476B (en) | 2020-11-28 | 2020-11-28 | Oil pressure is low from opening high alarm pump station controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011365222.5A CN112576476B (en) | 2020-11-28 | 2020-11-28 | Oil pressure is low from opening high alarm pump station controlling means |
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| Publication Number | Publication Date |
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| CN112576476A CN112576476A (en) | 2021-03-30 |
| CN112576476B true CN112576476B (en) | 2023-05-26 |
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| CN202011365222.5A Active CN112576476B (en) | 2020-11-28 | 2020-11-28 | Oil pressure is low from opening high alarm pump station controlling means |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205895674U (en) * | 2016-07-29 | 2017-01-18 | 广东广业云硫矿业有限公司 | Safe highly reliable pressure control system |
| CN206694235U (en) * | 2016-12-30 | 2017-12-01 | 济南重工股份有限公司 | A kind of Lubricating-oil Station motor, oil pump protection circuit |
| CN207454233U (en) * | 2017-10-20 | 2018-06-05 | 陕西北元化工集团股份有限公司 | A kind of hand auto-controlled water-pumping system of steam condensate |
| CN209313756U (en) * | 2019-02-14 | 2019-08-27 | 邯郸学院 | A kind of bang-bang circuit for avoiding power network fluctuation from causing to shut down |
-
2020
- 2020-11-28 CN CN202011365222.5A patent/CN112576476B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205895674U (en) * | 2016-07-29 | 2017-01-18 | 广东广业云硫矿业有限公司 | Safe highly reliable pressure control system |
| CN206694235U (en) * | 2016-12-30 | 2017-12-01 | 济南重工股份有限公司 | A kind of Lubricating-oil Station motor, oil pump protection circuit |
| CN207454233U (en) * | 2017-10-20 | 2018-06-05 | 陕西北元化工集团股份有限公司 | A kind of hand auto-controlled water-pumping system of steam condensate |
| CN209313756U (en) * | 2019-02-14 | 2019-08-27 | 邯郸学院 | A kind of bang-bang circuit for avoiding power network fluctuation from causing to shut down |
Non-Patent Citations (1)
| Title |
|---|
| 压缩机主、副油泵控制要求的探讨;李敏;深冷技术(第05期);全文 * |
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