CN101324237B - Intelligent supervising protection device of long shaft submerged pump - Google Patents
Intelligent supervising protection device of long shaft submerged pump Download PDFInfo
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- CN101324237B CN101324237B CN2007100524789A CN200710052478A CN101324237B CN 101324237 B CN101324237 B CN 101324237B CN 2007100524789 A CN2007100524789 A CN 2007100524789A CN 200710052478 A CN200710052478 A CN 200710052478A CN 101324237 B CN101324237 B CN 101324237B
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- seal ring
- oil
- moving
- transmission shaft
- seal
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Abstract
The invention discloses an intelligent monitoring protective device for a major axis submerged pump, a transmission shaft and a seal assembly device are arranged in a cylindrical bracket of the protective device, wherein, the seal assembly device is arranged in the shell of a seal box, ends of two leads penetrating the bracket respectively enter the shell of the seal box, other ends thereof are respectively connected with wire connecting terminals of a PLC programmable controller on a control cabinet. The leads are put through by liquid medium, signals of the leads are fed back to an intelligent monitoring system. After being analyzed and processed, the signals are transmitted to a solenoid valve, a tactor KM, a change-over switch SA, a liquid level relay, an oil-pressure warning unit, a hydraulic pressure warning unit and an indicating lamp for receiving the signals, then an acousto-optic warning signal is sent out, and when the warning signal is received, the power switch is disconnected. The protective device of the invention improves the reliability and the service life of the complete machine, and has ingenious design, simple structure, easy manufacture, and good use effect.
Description
Technical field
The present invention relates to a kind of seal protecting device of pump, and specifically a kind of long shaft submerged pump intelligent monitoring protective gear belongs to the mechanical ﹠ electrical technology field.
Background technique
In the prior art, the SO2 in the thermal power plant coal burning system discharging flue gas has caused severe contamination to atmosphere, brings tremendous loss to the national economic development.For this reason, require the thermal power plant must increase by a cover desulphurization system, because the narrow limitation of geospatial location, the sloptank station arises at the historic moment.In the prior art, long shaft submerged pump designs at the sloptank station in the means of flue gas desulfurization of power plant system.The fault statistics data show that causing the low main cause of long shaft submerged pump reliability is the damage that the mechanical seal inefficacy causes bearing.
Summary of the invention
The objective of the invention is to lose efficacy and cause the technical problem of damage of bearings: design a kind of long shaft submerged pump intelligent monitoring protective gear in order to overcome mechanical seal in the prior art; improved the external environment condition of sealing operation; forced lubricating system provides the lubricant oil and the cooling water of certain pressure to its seal chamber; whether the oil pressure of lubrication system, hydraulic pressure and bearing housing intake; to intelligent monitor system, intelligent monitor system is crossed the start and stop that the above-mentioned signal of analysing and processing is controlled long shaft submerged pump through signal feed back.The logical design of the utility model intelligent monitor system is ingenious, intelligence degree of changing into height, and control system is safe and reliable, effectively avoids seal failure to cause the damage problem of bearing.
Technical solution that the present invention adopts is: a kind of long shaft submerged pump intelligent monitoring protective gear, comprise PLC programmable controller, solenoid valve, contactor KM, throw over switch SA, liquid level relay, oil pressure warning unit, everguard alarm, it is characterized in that: the pto of motor 21 and second transmission shaft adopt star-like coupling to connect, and the upper tip of the lower end of second transmission shaft and first transmission shaft is connect by star-like coupling; The lower end of first transmission shaft is equipped with pump impeller, is separately installed with bearing on the transmission shaft, and bearing is installed in respectively in the bearing support of the upper head plate of cylindrical shape A support and lower end sheet, cylindrical shape A ' support lower end sheet; Respectively motor bearing, cylindrical shape A support, cylindrical shape A ' support, connecting tube, the sealed case housing that is provided with peep hole are assembled into monolithic cylinder shape support with screw; Be provided with dividing plate in the sealed case housing, dividing plate is provided with screw, and the dividing plate center is provided with circular hole, with screw the black box device case is fixed on the dividing plate, makes the front portion in the sealed case housing form Seal cage; Be provided with on the end plate in every pitch circle cylindrical stent leakage warning wire hole is installed, two leakage warning wires penetrate in the wire guide respectively, the two ends of leakage warning wire stretches into respectively in the sealed case housing, and two leakage warning wires are fixed on the upper head plate of sealed case housing, make two interior wire heads of Seal cage at intervals, another termination of two leakage warning wires is connected on respectively on the tenminal block of PLC programmable controller; With the upper end of the main contactor KM on the direct Access Control case of power supply L1, L2, L3, contactor lower end U, V, W insert on the main pump motor M1, leakage probe is inserted on first tenminal block and second tenminal block, the conductor terminal of condition indicative signal lamp is inserted respectively on the tenminal block of oil pressure alarm signal, cooling water pressure alarm signal, oil pump run signal, main pump run signal of central control chamber; The black box device is provided with the water intake of lubricant oil oil inlet hole, oil outlet and cooling water, and being connected to pressure gauge with electric contact at the oil inlet hole of lubrication system and the water inlet of cooling water, pressure gauge with electric contact is connected by the corresponding terminal of lead and control system rim of the mouth respectively.
A kind of long shaft submerged pump intelligent monitoring protective gear of the present invention, the end face at the two ends of black box device case housing is provided with screw, on the axle of the underpart of first transmission shaft first axle sleeve, second axle sleeve are housed, C oil sealing and d oil sealing are housed in the groove of establishing respectively on the two ends inside and outside circle of first axle sleeve; Moving A seal ring and moving B seal ring are installed respectively on the cylindrical of first axle sleeve, on the cylindrical of moving A seal ring and moving B seal ring, sleeve is installed, lock screw is fixed on sleeve on first axle sleeve, and a spring housing is installed in the middle of moving A seal ring and moving B seal ring, and spring is housed in the spring housing; On last stationary ring and the following stationary ring cylindrical a oil seal ring is installed respectively; The water conservancy diversion cover is housed on the cylindrical of second axle sleeve, and water conservancy diversion puts and is provided with pod apertures, forms seal chamber between moving A seal ring and moving B seal ring and the black box device case inwall; Stationary seat is installed on the end face of black box device case with screw, will move A seal ring and moving B seal ring installation and control and form in the black box device case first transmission shaft is sealed.
The invention has the beneficial effects as follows: sealed case is installed between pump housing back cavity and the junction pipe, and pump housing back cavity adopts a kind of unenclosed construction, make pump housing back cavity and space outerpace become an organic whole, by a cover forced lubricating system its seal chamber is provided the You Heshui of certain pressure in the sealed case, improved the internal environment of sealing operation, the oil pressure of lubrication system, whether hydraulic pressure and sealed case intake, make its signal feed back to intelligent monitor system the lead connection by liquid medium, make intelligent monitor system control the start and stop of long shaft submerged pump by the above-mentioned signal of analysing and processing, improve the reliability of complete machine, prolonged the working life of complete machine; And design ingeniously, simple in structure, easily make, using effect is good.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing
Fig. 1 is a structural representation of the present invention
Fig. 2 is Fig. 1 black box device enlarged diagram
Fig. 3 is an electrical equipment control functional-block diagram of the present invention
Fig. 4 is an electric system schematic diagram of the present invention
Fig. 5 is an electrical equipment control structural representation of the present invention
Fig. 6 is a reservation terminal index signal schematic representation of the present invention
In the drawings 1, pick-up tube, 2, pump case, 3, impeller, 4, pump cover, 5, bend pipe, 6, bearing, 7, drain pipe, 8, first transmission shaft, 9 ' bearing, 9, bearing, 10, second transmission shaft, 11, flange plate, 12, flange plate, 13, the black box device, 14, the sealed case housing, 15, cylindrical shape A support, 16, connect the knot pipe, 17, cylindrical shape A ' support, 18, base plate, 19, coupling, 20, bearing, 21, motor, 22, last stationary ring, 23, the a oil sealing, 24, the b oil sealing, 25, the black box device case, 26, the C oil sealing, 27, sleeve, 28, the d oil sealing, 29, spring, 30, first axle sleeve, 31, e oil sealing 32, flange plate, 33, oilhole, 34, following stationary ring, 35, the water inlet, 36, second axle sleeve, 37, the water conservancy diversion cover, 38, the f oil sealing, 39, oil outlet, 40, moving A seal ring, 41, lock screw, 42, spring housing, 43, moving B seal ring, 44, stationary seat, 45, screw, 46, lead.
Embodiment
At Fig. 1, Fig. 2, among the embodiment of Fig. 3: motor 21 is installed on the bearing 20 with screw, bearing 20 installs and fixes together with base plate 18 usefulness screws, the motor power output shaft and second transmission shaft 10, adopt star-like coupling 19 to connect, the upper tip of second transmission shaft 10 is equipped with bearing, Bearing Installation is in base plate 18 upper bearing brackets, cylinder-shaped bracket 17 is installed below the base plate 18, the upper tip of the lower end of second transmission shaft 10 and first transmission shaft 8 is connect by star-like coupling, be provided with connecting tube 16 between cylindrical shape A ' support 17 and the cylindrical shape A support 15, install and fix together with screw respectively, on the upper head plate of the lower end sheet of cylindrical shape A ' support 17 and cylindrical shape A support 15, be provided with bearing support, bearing 9 ' and bearing 9 be installed in the bearing support respectively; The upper head plate of cylindrical shape A support 15 lower end sheets and sealed case 14 is installed with screw attachment, and cylindrical shape A support 15 lower end sheets are provided with bearing support, and the bearing 6 on first transmission shaft 8 is installed in the cylindrical shape A support 15 lower end sheet upper bearing brackets.Leakage warning device dress is installed in the sealed case housing 14, and the leakage warning wire is installed in the dividing plate wire guide in the sealed case housing 14; Whether sealed case is provided with two peep holes, observe bearing housing by the cover plate for sealing peep hole and intake.Water pump vane 3 is fixed on the lower end of first transmission shaft 8, one side of pump case 2 is provided with the hole, with screw fluid bend pipe 5 one ends are fixed on the hole of pump case 2 one sides, drain pipe 7 one terminations and bend pipe 5 one ends are fixed on together, fluid pipeline 7 is fixed on the base plate 18 by flange plate 11, and fluid pipeline 7 upper end-hole are provided with flange plate 12.Every cylindrical section shape support frame junction is provided with the O-ring seals sealing.
Sealed case of the present invention, be provided with dividing plate in the sealed case housing 14, dividing plate is provided with screw, the center of dividing plate is provided with circular hole, one black box device case 25 is installed in the circular hole, be provided with flange plate 32 on the housing cylindrical, flange plate is provided with uniform screw, oil inlet hole 33, oil outlet 39 and water inlet 35; The end face at the two ends of housing is provided with screw, on the axle of the underpart of first transmission shaft 8 first axle sleeve 30 and second axle sleeve 36 are housed, be respectively equipped with the groove that oil sealing is installed on the two ends inside and outside circle of first axle sleeve 30, be separately installed with C oil sealing 26 and d oil sealing 28 in the groove; Moving A seal ring 40 and moving B seal ring 43 are installed respectively on the cylindrical of first axle sleeve 30, on the cylindrical of moving first seal ring 40 and moving B seal ring 43, sleeve 27 is installed, lock screw 41 is fixed on sleeve on first axle sleeve 30, one spring housing 42 is installed in the middle of moving A seal ring 40 and moving B seal ring 43, spring 29 is housed in the spring housing 42, spring 29 exert pressure make A seal ring 40 and moving B seal ring 43 the ring end face respectively up and down or the last stationary ring in the right and left ring seat 22 and following stationary ring 34 closely be close to, on last stationary ring 22 and following stationary ring 34 cylindricals a oil sealing 23 is installed respectively; Water conservancy diversion cover 37 is installed on the cylindrical of second axle sleeve 36, and water conservancy diversion cover 37 is provided with pod apertures, forms seal chamber between moving A seal ring 40 and moving B seal ring 43 and black box device case 25 inwalls; Stationary seat 44 usefulness screws 45 are installed on the end face of black box device case 25, will move A seal ring 40, moving B seal ring 43 installation and control form black box device case 25 in first transmission shaft 8 is sealed.A oil sealing 23, the water conservancy diversion of installing respectively on black box device case 25, moving A seal ring 40 and moving B seal ring 43, last stationary ring 22 and following stationary ring 34 cylindricals overlaps 37, spring 41 is assembled in becomes a black box 13 in the black box device case 25.Owing to form seal chamber between moving A seal ring 40 and moving B seal ring 43 and sleeve 27 inwalls, prevent that medium from entering bearing, causes damage of bearings.Black box device 13 is provided with the water intake of lubricant oil manhole appendix and cooling water, by the lubricant oil oil inlet hole 33 on the black box device 13 lubricant oil is injected in the Seal cage, make and be full of lubricant oil in the Seal cage and in the chamber, circulate, two pairs of friction pairs in the Seal cage (friction pair is silicon carbide (SiC)-graphite) are lubricated and cool off, and being connected to pressure gauge with electric contact at the oil inlet hole of lubrication system and the water inlet of cooling water, pressure gauge with electric contact is connected by the corresponding terminal of lead and control system rim of the mouth respectively.Sealing medium end friction pair is washed through the water conservancy diversion cover from water intake 35 water fillings, washing solution directly enters in the pump housing medium.Simultaneously, communicate between cavity medium between impeller 3, pump cover 4, the sealed case and the medium, adopt a kind of like this unenclosed construction, eliminated the influence of the back pressure that the back side produces behind the impeller sealing.Improve sealed environment, improved the working life of sealing.Hole on the dividing plate in screw on black box device case 25 flange plate and the sealed case housing 14 is aimed at the back and with screw black box device case 25 is fixed on the dividing plate, makes front portion or tops formation Seal cage in the sealed case housing 14.
Be provided with the installation wire guide on the end plate in every pitch circle cylindrical stent, lead penetrates in the wire guide, and the two ends of lead stretches into respectively in sealed case housing 14, and two leads are fixed on the upper head plate of sealed case housing 14.The upper tip of two leads is connected on respectively on the tenminal block of controller.The purpose of establishing wire head in Seal cage is to damage bearing in order to prevent after the liquid medium leakage from entering Seal cage, owing in Seal cage, placed the leakage warning wire, two wire heads in the Seal cage at intervals, in case seal failure, liquid medium enters Seal cage, liquid medium will turning circuit, make its signal feed back to intelligent monitor system the lead connection by liquid medium, intelligent monitor system with above-mentioned signal analysis and processing after, pass to magnet valve, contactor KM, throw over switch SA, liquid level relay, oil pressure warning unit, everguard alarm and tutorial light, will send living acoustooptic alarm signal, after receiving alarm signal, the switch of cutting off the electricity supply.Open the peep hole of establishing on the sealed case, carry out maintenance and inspection, after fault was eliminated, the power turn-on switch made the pump proper functioning.
Leakage warning intelligent monitor system of the present invention is made up of PLC programmable controller, solenoid valve, contactor KM, throw over switch SA, liquid level relay, oil pressure warning unit, everguard alarm and tutorial light.
1, three-phase four-wire power directly is connected on L1, L2, the L3 of contactor KM upper end, the U of contactor lower end, V, W are connected on main pump motor and get final product.Then the design of pressure of oil pressure, hydraulic pressure (oil pressure: (0.08-0.12) MPa hydraulic pressure: (0.2-0.3MPa), get final product after leakage probe inserted terminal; The conductor terminal of condition indicative signal lamp is inserted respectively on the tenminal block of oil pressure alarm signal, cooling water pressure alarm signal, oil pump run signal, main pump run signal of central control chamber.The first terminal 72, second terminal 52 insert terminal for the leakage probe; 401,403 is the oil pressure alarm signal; 405,407 is the cooling water pressure alarm signal; 409,411 are bearing housing water inlet alarm signal; 417,419 is the oil pump run signal; 421,423 is the main pump run signal; 429,431 is the control cabinet automatic signal.
3. when beating auto state to throw over switch SA, press normal procedure starting main pump master motor, this moment, main motor can not move at once because the external condition of main electric motor starting is also satisfied, treat that oil pressure, hydraulic pressure reach required value after, main pump motor puts into operation automatically.
4. in service main pump motor just quits work at once, and sends corresponding alarm signal if oil pressure, hydraulic pressure and bearing housing water inlet have one not meet the demands, and after pending fault disposed, the power turn-on switch got final product proper functioning, reported to the police and eliminated automatically.
5. when the moving state of throw over switch SA hired roughneck, connect primary power supply, press starting button ST, the oil pump starting, treat that oil pressure, hydraulic pressure satisfy after, the main pump motor starting; When needs stop main pump motor, to press the STP switch and get final product, this moment, main pump motor stopped, and the Oil pump electrical machinery time-delay stopped in 5 seconds.
Claims (2)
1. long shaft submerged pump intelligent monitoring protective gear, comprise PLC programmable controller, solenoid valve, contactor KM, throw over switch SA, liquid level relay, oil pressure warning unit, everguard alarm, it is characterized in that: the pto of motor (21) and second transmission shaft (10), adopt star-like coupling (19) to connect, the upper tip of the lower end of second transmission shaft (10) and first transmission shaft (8) is connect by star-like coupling; The lower end of first transmission shaft (8) is equipped with pump impeller (3), is separately installed with bearing on the transmission shaft, and bearing is installed in respectively in the bearing support of the upper head plate of cylindrical shape A support and lower end sheet, cylindrical shape A ' support lower end sheet; Respectively motor bearing (20), cylindrical shape A support (15), cylindrical shape A ' support (17), connecting tube (16), the sealed case housing (14) that is provided with peep hole are assembled into monolithic cylinder shape support with screw; The sealed case housing is provided with dividing plate in (14), and dividing plate is provided with screw, and the dividing plate center is provided with circular hole, with screw black box device case (25) is fixed on the dividing plate, makes the front portion in the sealed case housing (14) form Seal cage; Be provided with on the end plate in every pitch circle cylindrical stent leakage warning wire hole is installed, two leakage warning wires (46) penetrate in the wire guide respectively, the two ends of leakage warning wire (46) stretches into respectively in sealed case housing (14), and two leakage warning wires are fixed on the upper head plate of sealed case housing (14), make two interior wire heads of Seal cage at intervals, another termination of two leakage warning wires (46) is connected on respectively on the tenminal block of PLC programmable controller; With the upper end of the main contactor KM on the direct Access Control case of power supply L1, L2, L3, contactor lower end U, V, W insert on the main pump motor M1, leakage probe is inserted on first tenminal block (72) and second tenminal block (52), the conductor terminal of condition indicative signal lamp is inserted respectively on the tenminal block of oil pressure alarm signal, cooling water pressure alarm signal, oil pump run signal, main pump run signal of central control chamber; Black box device (13) is provided with the water intake (35) of lubricant oil oil inlet hole (33), oil outlet (39) and cooling water, and being connected to pressure gauge with electric contact at the oil inlet hole of lubrication system and the water inlet of cooling water, pressure gauge with electric contact is connected by the corresponding terminal of lead and control system rim of the mouth respectively.
2. a kind of long shaft submerged pump intelligent monitoring protective gear according to claim 1, it is characterized in that: the end face at the two ends of black box device case (25) housing is provided with screw, on the axle of the underpart of first transmission shaft (8) first axle sleeve (30), second axle sleeve (36) are housed, C oil sealing (26) and d oil sealing (28) are housed in the groove of establishing respectively on the two ends inside and outside circle of first axle sleeve (30); Moving A seal ring (40) and moving B seal ring (43) are installed respectively on the cylindrical of first axle sleeve (30), on the cylindrical of moving A seal ring (40) and moving B seal ring (43), sleeve (27) is installed, lock screw (41) is fixed on sleeve on first axle sleeve (30), in the middle of moving A seal ring (40) and moving B seal ring (43), a spring housing (42) is installed, spring (29) is housed in the spring housing (42); On last stationary ring (22) and following stationary ring (34) cylindrical a oil seal ring (23) is installed respectively; Water conservancy diversion cover (37) is housed on the cylindrical of second axle sleeve (36), and water conservancy diversion puts and is provided with pod apertures, forms seal chamber between moving A seal ring (40) and moving B seal ring (43) and black box device case (25) inwall; Stationary seat (44) is installed on the end face of black box device case (25) with screw (45), will move A seal ring (40) and moving B seal ring (43) installation and control and form in black box device case (25) first transmission shaft (8) is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100524789A CN101324237B (en) | 2007-06-13 | 2007-06-13 | Intelligent supervising protection device of long shaft submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100524789A CN101324237B (en) | 2007-06-13 | 2007-06-13 | Intelligent supervising protection device of long shaft submerged pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101324237A CN101324237A (en) | 2008-12-17 |
| CN101324237B true CN101324237B (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100524789A Expired - Fee Related CN101324237B (en) | 2007-06-13 | 2007-06-13 | Intelligent supervising protection device of long shaft submerged pump |
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| Country | Link |
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| CN (1) | CN101324237B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101613163B1 (en) * | 2012-07-10 | 2016-04-18 | 스에히로시스테무 가부시키가이샤 | Deterioration detection system for sliding portion of submerged bearing |
| CN102829164B (en) * | 2012-09-13 | 2015-12-02 | 武汉船用机械有限责任公司 | A kind of transmission device |
| CN103671273A (en) * | 2013-12-09 | 2014-03-26 | 无锡艾比德泵业有限公司 | Submerged pump capable of saving cooling water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809285Y (en) * | 2005-02-01 | 2006-08-23 | 上海阿波罗机械制造有限公司 | Intelligent apparatus for protecting and monitoring submerged pump with long shaft |
| CN201083203Y (en) * | 2007-06-13 | 2008-07-09 | 襄樊五二五泵业有限公司 | Intelligence monitoring protecting device for long axis immersible pump |
-
2007
- 2007-06-13 CN CN2007100524789A patent/CN101324237B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2809285Y (en) * | 2005-02-01 | 2006-08-23 | 上海阿波罗机械制造有限公司 | Intelligent apparatus for protecting and monitoring submerged pump with long shaft |
| CN201083203Y (en) * | 2007-06-13 | 2008-07-09 | 襄樊五二五泵业有限公司 | Intelligence monitoring protecting device for long axis immersible pump |
Non-Patent Citations (4)
| Title |
|---|
| JP平4-184198A 1992.07.01 |
| JP平8-334098A 1996.12.17 |
| 张福亮.IHY型耐腐蚀液下泵的设计.化工设备与管道 1.1995,(1),41-43. |
| 张福亮.IHY型耐腐蚀液下泵的设计.化工设备与管道 1.1995,(1),41-43. * |
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| Publication number | Publication date |
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| CN101324237A (en) | 2008-12-17 |
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Granted publication date: 20110518 Termination date: 20130613 |