CN2300741Y

CN2300741Y - Automatic controlling protection submerged electric pump

Info

Publication number: CN2300741Y
Application number: CN 97213301
Authority: CN
Inventors: 陈成宗
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-18
Filing date: 1997-04-18
Publication date: 1998-12-16
Anticipated expiration: 2007-04-18

Abstract

The utility model relates to an automatic controlling protection submerged electric pump, comprising an electric motor, a water pump, a mercury thermometer relay, a moving sealing device, a shunt releasing device, etc. The utility model is characterized in that the mercury thermometer relay is provided with current conducting lines for selecting, for example, the third current conducting line is selected and is connected with the zero line of the shell of the electric motor, and the coil and the zero line of the shunt releasing device in series; the fourth current conducting line is connected with the electric cable with any phase of the electric motor in series; the moving sealing device is connected with the current conducting line in series, and is connected with the electric cable with any phase of the electric motor in series. When failure and problem are generated in working, or the design life of the moving sealing device is terminated, the utility model automatically cuts off the power, prevents the electric motor from burning out, the water from leaking into the electric motor, and the electric leakage accident from generating, and the utility model is suitable for various water depths.

Description

Auto-control protective submerged electric pump

The utility model is a kind of auto-control protective submerged electric pump of automatic protection motor safety.

Take place in the safety protector for submerged motor coupling Submerged Motor Pumps work that submersible motor protector that the patent No. 931005930 that the inventor provides is announced and application for a patent for invention numbers 941051218 announced all can to cut off the electricity supply automatically when phase shortage, long-time low voltage, traffic overload, unexpected electric leakage, dynamic seal stop projected life, and be applicable to the various depth of waters, but exist that motor is absorbed in the silt or can cause shortcomings such as motor burns out during dehydration work; Break down in the application for a patent for invention that the inventor the provides number 951214462 auto-control protective submerged electric pump work of being announced and problem for example water pump vane stopped up by foreign material; traffic overload; long-time low voltage; phase shortage; unexpected electric leakage; Sealing leaks; motor is absorbed in the silt or dehydration etc. all can be cut off the electricity supply automatically; and be applicable to the various depth of waters; eliminate the old product thermorelay simultaneously and solve the insurmountable difficult problem of old product thermorelay, leak and to cause water to flow into motor and cause engineering time long for example motor to handle and increase shortcomings such as Cost of repair and maintenance through oven dry but exist dynamic seal.

The purpose of this utility model is to avoid above-mentioned shortcoming of the prior art and a kind of automatically anti-sealing the bleed motor and the auto-control protective submerged electric pump of protection motor safety automatically is provided; it break down at work and problem for example water pump vane by foreign material obstruction, traffic overload, long-time low voltage, phase shortage, unexpected electric leakage, dynamic seal stop projected life, motor is absorbed in the silt or dehydration etc. all can be cut off the electricity supply automatically, and is applicable to the various depth of waters and various altitude.Thereby prevent that effectively motor from burning out and prevent bleed motor and prevent the electric leakage accident of sealing.

Model utility is achieved in that auto-control protective submerged electric pump includes auto-control protective electric work machine and water pump, the auto-control protective motor includes motor and motor auto-control protective device, motor auto-control protective device include the mercury thermometer relay that is installed in the motor and be installed in motor terminal the auto-control Design end-of-life various dynamic seal apparatuss be installed in the shunt release dry ventilation or dry air bells chamber in and be installed near the power supply or near the motor moist soil in ground wire or " zero " line in the power supply, and mate cable and connect one by one; Conductive hoop and electric lead that described mercury thermometer relay includes mercury thermoneter and do not adhered to by the mercury dissolving; the mercury column cap the other end of this mercury thermoneter is pressed in the position of designing requirement temperature number for example at 30 ℃; 40 ℃; 50 ℃; there is one first respectively in the positions such as 60 ℃; two; three; four conductive hoops; first; two; three; four conductive hoop central authorities have a circular hole internal diameter to equal the mercury column motion circular hole internal diameter in the mercury thermoneter respectively and communicate one by one; first; two; three; maintain distance or gap between four conductive hoops respectively; first; two; three; four conductive hoop outer walls link one first respectively; two; three; four electric leads and from mercury thermoneter, stretch out respectively and maintain respectively the distance or the gap; stretch out first of mercury temperature off-balancesheet; two; three; four electric leads are loaded onto spaghetti respectively or are sprayed insulated paint respectively; the diverse location that temperature during according to electric motor normal working and mercury thermometer relay are installed in the motor selects to mate first in the mercury thermometer relay; two; three; four conductive hoops link first; two; three or four electric leads are for example selected the 3rd conductive hoop to link the 3rd electric lead to link together with screw with the end cap of motor or connect with " zero " line cable in stretching into motor; the 4th conductive hoop links the 4th electric lead and connects or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity; when if auto-control protective submerged electric pump is installed in the fixing local work that does not shake, this mercury thermometer relay can adopt the making method of old product electric contact thermometer to make position by designing requirement temperature number for example at 50 ℃; having a platinum wire to insert also in 60 ℃ the position respectively can contact with the motion mercury column.Platinum wire in 50 ℃ of positions links

Cable is connected with screw lock or with " zero " line cable in stretching into motor with End cover for motor, the platinum wire in 60 ℃ of positions links cable and connects with the arbitrary electrical cables mutually in the motor three-phase electricity or connect with motor single-phase electricity cable; The various dynamic seal apparatuss of described auto-control Design end-of-life include the automatic control sealing injection cartridge type mechanical seal that is applicable to deepwater work and are applicable to the automatic control seal integral-type sealing case of shallow water operations and are applicable to that the automatic control of shallow water operations seals double mechanical seal, automatic control sealing injection cartridge type mechanical seal includes injection cartridge type mechanical seal and electric lead or includes injection cartridge type mechanical seal and leather cup and insulated ring box conductive ring etc., the shell that the injection cartridge type mechanical seal includes flange plate is installed in motor terminal and covers, a spring is arranged in the shell, a positioning disk, it is quiet that metallic material is made, rotating ring, the perhaps rotating ring of the stationary ring of insulating material making and metallic material making.A pair of sliding-groove and a metallic channel are arranged in the shell, there is the sealing that contacts one by one of multiple tracks " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring and stationary ring shell upper end, there is a pair of little shaft extension to go into sliding-groove and a pair of keyway and a metallic channel in the positioning disk, the stationary ring lower end has a pair of prominent key to stretch into keyway and by the circular hole of the designing requirement degree of depth and penetrate one and load onto the electric lead of spaghetti or spraying insulated paint or penetrate an electric lead, stretch out the outer electric lead of stationary ring load onto spaghetti through the screw of metallic channel from end cap stretch in the motor with the motor three-phase electricity in arbitrary series connection of electrical cables mutually or connect with motor single-phase electricity cable, and with Cock screw and " zero " shape rubber sealing ring screw is locked and to make the sealing that contacts one by one of electric lead and " zero " shape rubber sealing ring and end cap.There are pillow block rank that the rotating ring internal diameter is divided into large and small two ends in the rotating ring and withstood by motor rotation axis.The rotatingshaft that this end that internal diameter is little in the rotating ring has a pair of keyway and is mounted water pump vane passes, this big end of internal diameter has the sealing that contacts one by one of one or multi-channel " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring and rotatingshaft also can avoid " zero " shape rubber sealing ring to be rotated the axle key trough rim scratching and influence sealability in the rotating ring; If make quiet with insulating material, during rotating ring, spring bottom has a spring washer successively, the first road leather cup, the insulated ring box, the second road leather cup is also used screw and end cap locking, first, two road leather cups respectively with the sealing that contacts one by one of rotatingshaft and end cap, a conductive ring and rotatingshaft and first are arranged in the insulated ring box, maintain distance or gap between the two road leather cups respectively, this conductive ring links that a cable stretches out from the insulated ring box and the screw in end cap stretch in the motor with the motor three-phase electricity in arbitrary series connection of electrical cables mutually or connect with motor single-phase electricity cable, and screw locking is made the sealing that contacts one by one of cable and " zero " shape rubber sealing ring and end cap, spring force with Cock screw and " zero " shape rubber sealing ring

Produce along sliding-groove effect stationary ring opposite shell via the little axle of positioning disk and to move axially the sealing that contacts with rotating ring, shell upper end and water inlet save and the sealing that contacts one by one of " zero " shape seal ring; Automatic control seal integral-type sealing case includes old product integral sealed box and electric lead, sealing that integral sealed box shell both-end saves with End cover for motor and water inlet respectively and " zero " shape rubber sealing ring contacts one by one, stretch in the integral sealed box shell bottom surface of End cover for motor a metallic channel is arranged, " a zero " shape rubber sealing ring and a stationary ring and the rotating ring that metallic material is made that insulating material is made are arranged in the shell bottom surface, have one by the circular hole of the designing requirement degree of depth and penetrate electric lead in stationary ring, the electric lead that stretches out stationary ring is loaded onto spaghetti or spraying insulated paint and is stretched into motor through the circular hole of metallic channel from end cap and connect or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity; Automatic control sealing double mechanical seal includes old product double mechanical seal and insulated ring box and is installed in a conductive ring in the insulated ring box.The insulated ring box with screw be locked in motor terminal cover and make maintain respectively between conductive ring and double mechanical seal and the end cap distance or the gap, conductive ring links a cable and stretches out insulated ring box and the screw from end cap and stretch into the arbitrary series connection of electrical cables mutually in motor and the motor three-phase electricity or connect with motor single-phase electricity cable, and the locking of the screw in the end cap being made the sealing that contacts one by one of cable and " zero " shape rubber sealing ring and end cap with Cock screw and " zero " shape rubber sealing ring, double mechanical seal is respectively with end cap with intake and save the sealing that contacts one by one; When if End cover for motor and shell are all made with plastics.Large and small conductive ring is installed in the insulated ring box and makes insulated ring box internal diameter less than little conductive ring internal diameter, the insulated ring box is with the locking of screw and End cover for motor and make insulated ring box and double mechanical seal maintain distance or gap, large and small conductive ring link respectively a cable stretch out the insulated ring box also respectively the screw from end cap stretch in the motor.With Cock screw and " zero " shape rubber sealing ring the locking of the screw in the end cap is made the sealing that contacts one by one of cable and " zero " shape rubber sealing ring and end cap, big conductive ring binding cable is connected or is connected with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity.Little conductive ring links cable connects with " zero " line cable in stretching into motor, and perhaps little conductive ring binding cable is connected or connected with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity, big conductive ring links cable and connects with " zero " line cable in stretching into motor; Described shunt release is installed in the can of a good airproof performance or in the box of other material, and shunt release coupling motor power (output) is corresponding with feed cable with motor cable connects that shunt opening trip coil one end in energising or outage, the shunt release is connected or connected with " zero " line cable in stretching into motor with " zero " line cable of binding motor casing, the shunt opening trip coil the other end is connected with the ground wire cable or connect with " zero " line cable in the power supply.Break down in the auto-control protective submerged electric pump energising work and problem for example water pump vane be absorbed in by foreign material obstruction, traffic overload, long-time low voltage, phase shortage, motor and cause cooling water deficiency or dehydration etc. all can cause motor temperature to rise in the silt, be installed in that mercury column in the mercury thermometer relay in the motor also rises along with motor temperature and sensitive reaction rises to designing requirement temperature numerical digit and puts when for example mercury column rises to 60 ℃ of positions of designing requirement temperature.Mercury column contacts with the 4th conductive hoop in 60 ℃ of positions or contacts with platinum wire in 60 ℃ of positions, because mercury is a kind of electric conductor.So charged the 4th conductive hoop or charged platinum wire in 60 ℃ of positions of mercury column contact and switch on, therefore the 3rd conductive hoop in 50 ℃ of positions of charged mercury column contact links the 3rd electric lead and end cap and motor casing and links in cable series connection shunt opening trip coil ground wire cable or the power supply " zero " line cable and switch on one by one shunt release is cut off the electricity supply automatically, " zero " line cable is switched on one by one shunt release is cut off the electricity supply automatically in platinum wire binding cable in 50 ℃ of positions of perhaps charged mercury column contact and end cap and motor casing binding cable series connection shunt opening trip coil ground wire cable or the power supply, the 3rd conductive hoop in 50 ℃ of positions of perhaps charged mercury column contact links the 3rd electric lead or platinum wire and links the cable series connection and stretch into " zero " line cable in the motor " zero " line cable of connecting in shunt opening trip coil ground wire cable or the power supply and switch on one by one shunt release is cut off the electricity supply automatically, thereby prevents that effectively motor from burning out; When motor meets accident when electric leakage, cause " zero " the line cable that links motor case or stretch into connect " zero " line cable in shunt opening trip coil ground wire cable or the power supply of " zero " line cable in the motor and switch on one by one shunt release is cut off the electricity supply automatically.Thereby prevent the electric leakage accident effectively; When the stationary ring of injection in the cartridge type mechanical seal may wear to designing requirement length, make the metal rotating ring with

Penetrate the charged electric lead contact energising in the stationary ring, therefore connect with motor casing binding " zero " line cable " zero " line cable in shunt opening trip coil ground wire cable or the power supply of charged rotating ring is switched on one by one shunt release is cut off the electricity supply automatically, at this moment spring force effect stationary ring still is in the sealing that contacts with rotating ring, thereby prevents that effectively water from flowing into motor; Perhaps quiet, rotating ring may wear to and produces when leaking.Water flows into the first road leather cup makes leather cup produce softening and expansion, the rotatingshaft high speed rotating causes the first road leather cup and rotatingshaft seal break-off to produce and leaks, water flows into the energising that contacts with charged conductive ring in the insulated ring box of insulated ring box, charged water and rotatingshaft and motor casing link connect " zero " line cable in shunt opening trip coil ground wire cable or the power supply of " zero " line cable and switch on one by one shunt release is cut off the electricity supply automatically, water flows into the second road leather cup makes leather cup produce softening and expansion, at this moment rotatingshaft stops the rotation, leather cup expansion and rotatingshaft more close proximity touch sealing, thereby prevent that effectively water from flowing into motor; When the stationary ring in the integral sealed box may wear to designing requirement length.The metal rotating ring contacts energising with charged electric lead in penetrating stationary ring, charged rotating ring and motor casing link connect " zero " line cable in shunt opening trip coil ground wire cable or the power supply of cable and switch on one by one shunt release is cut off the electricity supply automatically, at this moment quiet, rotating ring still is in the sealing of joining, thereby prevents that effectively water from flowing into motor; When the seal break-off of the close water pump end of double mechanical seal leaks, water flows into the energising that contacts with charged conductive ring of dead ring box, charged water and end cap and motor casing link connect " zero " line cable in shunt opening trip coil ground wire cable or the power supply of cable and switch on one by one shunt release is cut off the electricity supply automatically, at this moment the sealing near motor terminal does not destroy, thereby prevents that effectively water from flowing into motor; Perhaps water flows into contact with charged big conductive ring energising, charged water of insulated ring box and connects with little conductive ring binding cable and stretch into " zero " line cable in motor interior " zero " line cable, shunt opening trip coil, ground wire cable or the power supply and switch on one by one shunt release is cut off the electricity supply automatically, the perhaps water inflow insulated ring box energising that contacts with charged little conductive ring.Charged water and big conductive ring link cable and connects and stretch into " zero " line cable in motor interior " zero " line cable, shunt opening trip coil, ground wire cable or the power supply and switch on one by one shunt release is cut off the electricity supply automatically, at this moment the sealing near motor terminal does not destroy, thereby prevents that effectively water from flowing into motor.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1, Fig. 2 are the part schematic diagrams that is applicable to deepwater work according to the auto-control protective submerged electric pump that the utility model proposes.

Fig. 3, Fig. 4, Fig. 5 are the part schematic diagrams that is applicable to shallow water operations according to the auto-control protective submerged electric pump that the utility model proposes.

Describe details and working condition in detail below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 according to the concrete device that the utility model proposes.

The auto-control protective submerged electric pump that is applicable to deepwater work includes auto-control protective motor, water inlet joint (1), water pump, check valve etc., and the auto-control protective motor includes motor and motor auto-control protective device.Motor auto-control protective device includes the mercury thermometer relay that is installed in the motor and is installed in the automatic control sealing injection cartridge type mechanical seal of motor terminal and " zero " line in shunt release and ground wire or the power supply; described mercury thermometer relay includes mercury thermoneter (2); one end of mercury thermoneter (2) has a mercury column cap (3); mercury thermoneter (2) the other end is pressed in the position of designing requirement temperature number for example at 30 ℃; 40 ℃; 50 ℃; there is one in 60 ℃ of positions respectively not by mercury dissolving and first conductive hoop (4) that is not adhered to by mercury; second conductive hoop (5); the 3rd conductive hoop (6); the 4th conductive hoop (7), first; two; three; four conductive hoops (4; 5; 6; 7) central authorities have a circular hole internal diameter to equal the mercury column motion circular hole internal diameter in the mercury thermoneter (2) respectively and communicate one by one.Maintain distance or gap between first, second, third and fourth conductive hoop (4,5,6,7) respectively.First, two, three, four conductive hoops (4,5,6,7) outer wall links one first electric lead (8) respectively, second electric lead (9), the 3rd electric lead (10), the 4th electric lead (11) also stretches out from mercury thermoneter (2) respectively, first, two, three or four electric leads (8,9,10,11) maintain distance or gap between respectively, stretch out first outside the mercury thermoneter (2), two, three, four electric leads (8,9,10,11) load onto spaghetti or spraying insulated paint respectively, first in the mercury thermometer relay selected to mate in the position that temperature during according to electric motor normal working and mercury thermometer relay are installed in the motor, two, three, four conductive hoops (4,5,6,7) link first respectively, two, three, four electric leads (8,9,10,11) for example selecting the 3rd conductive hoop (6) to link the 3rd electric lead (10) links together or connects with " zero " line cable in stretching into motor with screw (13) locking with the end cap (12) of motor, the 4th conductive hoop (7) links the 4th electric lead (11) and connects or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually (14) in the motor three-phase electricity; Described automatic control sealing injection cartridge type mechanical seal includes injection cartridge type mechanical seal and electric lead, the shell (15) that the injection cartridge type mechanical seal includes flange plate is installed in end cap (12) upward with screw (16) locking, a spring (17) is arranged in the shell (15), a positioning disk (18), the stationary ring (19) that metal is made, rotating ring (20), a pair of sliding-groove (21 is arranged in the shell (15), 22) and a metallic channel (23), there are multiple tracks " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring (24 in shell (15) upper end, 25) with stationary ring (19) sealing that contacts one by one, a pair of little axle (26 is arranged in the positioning disk (18), 2 7) stretch into sliding-groove (21 respectively, 22) and a pair of keyway and a metallic channel, stationary ring (19) lower end has a pair of protruding key to stretch into keyway in the positioning disk (18) and one by the circular hole of the designing requirement degree of depth and penetrate an electric lead (28) of loading onto spaghetti or spraying insulated paint, stretch out the outer electric lead (28) of stationary ring (19) load onto the metallic channel (23) of the metallic channel of spaghetti in positioning disk (18) from shell (15) and the screw in the end cap (12) stretch in the motor with the motor three-phase electricity in arbitrary electrical cables mutually (14) connect or connect with motor single-phase electricity cable, and the locking of the screw in the end cap (12) is made the sealing that contacts one by one of electric lead (28) and " zero " shape rubber sealing ring (30) and end cap (12) with Cock screw (29) and " zero " rubber sealing ring (30), there are pillow block rank that the rotating ring internal diameter is divided into greatly in the rotating ring (20), little two ends and be rotated the axle (31) withstand, this big end of internal diameter has the sealing that contacts one by one of one or multi-channel " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring (32) and rotatingshaft (31) in the rotating ring (20), this little end of internal diameter has a pair of keyway (33 in the rotating ring (20), 34) and the rotatingshaft (35) that is mounted water pump vane pass, can avoid " zero " shape rubber sealing ring (32) to be mounted keyway limit in the water pump vane rotatingshaft like this scratches and influences sealability and realize that rotating ring (20) is to the no pressure of stationary ring (19), the sealing that contacts one by one of " zero " shape rubber sealing ring groove in shell (15) upper end and the water inlet joint (1) and " zero " shape rubber sealing ring (36), there is the sealing that contacts one by one of " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring (37) and rotatingshaft (31) in end cap (12) central authorities, motor casing links " zero " line cable (38) locks with screw (39), and spring (17) power is via the little axle (26 of positioning disk (18), 27) along sliding-groove (21,22) effect stationary ring (19) opposite shell (15) produces and to move axially the sealing that contacts with rotating ring (20); Described shunt release is installed in the can of drying of a good airproof performance or in the box of other material and be placed in dry ventilate local or indoor, corresponding with feed cable energising or the outage of threading off of connecting of shunt release coupling motor power (output) with motor cable, shunt opening trip coil one end in the shunt release is connected or is connected with " zero " line cable in stretching into motor with " zero " line cable (38) that links motor casing, the shunt opening trip coil the other end is connected with the ground wire cable or is connected with " zero " line cable in the power supply, near near the moist soil that this ground wire is installed in the power supply or motor is; When breaking down in the auto-control protective submerged electric pump energising work with problem, for example water pump vane is stopped up by foreign material, traffic overload, long-time low voltage, phase shortage, motor is absorbed in and causes cooling water deficiency or motor dehydration etc. all can cause motor temperature to rise in the silt, be installed in that mercury column cap (3) mercury column in the mercury thermoneter (2) in the motor rises along with motor temperature and the sensitive reaction energising that contacts with charged the 4th conductive hoop (7) when rising to 60 ℃ of designing requirement temperature, therefore the 3rd conductive hoop (6) in 50 ℃ of positions of charged mercury column contact links connect with motor casing binding " zero " line cable (38) " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of the 3rd electric lead (10) and end cap (12) switches on one by one shunt release is cut off the electricity supply automatically, thereby prevents that effectively motor from burning out; Cause when electric leakage takes place connect " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of " zero " line cable that links motor casing to switch on one by one shunt release is cut off the electricity supply automatically when auto-control protective submerged electric pump is unexpected, thereby prevent the electric leakage accident effectively; Therefore charged electric lead (28) in making metal rotating ring (20) and penetrate stationary ring (19) when stationary ring (19) may wear to designing requirement length contacts energising, and connect with motor casing binding " zero " line cable (38) " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of charged rotating ring (20) is switched on one by one shunt release is cut off the electricity supply automatically.At this moment stationary ring (19) still is in the sealing of joining with rotating ring (20), thereby prevents that effectively water from flowing into motor; If when making stationary ring (40) and rotating ring (41) with insulating material, spring washer (43) first road leather cups (44) are arranged below the spring (42) successively, insulated ring box (45), the second road leather cup (46) also makes first with screw (47) and end cap (48) locking, two road leather cups (44,46) respectively with the sealing that contacts one by one of rotatingshaft (49) and end cap (48), a conductive ring (50) and rotatingshaft (49) and first are arranged in the insulated ring box (45), two road leather cups (44,46) maintain distance or gap between respectively, conductive ring (50) links that a cable (51) stretches out from insulated ring box (45) and the screw in end cap (48) stretch into motor in the motor three-phase electricity in arbitrary electrical cables mutually connect or connect with motor single-phase electricity cable, and the locking of the screw in the end cap (48) is made the sealing that contacts one by one of cable (51) and " zero " shape rubber sealing ring (53) and end cap (48) with Cock screw (52) and " zero " shape rubber sealing ring (53), when may wear between stationary ring (40) and the rotating ring (41) when leaking, water flows into the first road leather cup (44) makes leather cup (44) produce softening and expansion, rotatingshaft (49) high speed rotating causes between the first road leather cup (44) and the rotatingshaft (49) seal break-off to produce and leaks, water flows into insulated ring box (45) energising that contacts with charged conductive hoop (50) in the insulated ring box (45), charged water and rotatingshaft (49) and motor casing link connect " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of " zero " line cable and switch on one by one shunt release is cut off the electricity supply automatically, rotatingshaft (49) stops the rotation, water flow into the second road leather cup (46) make leather cup (46) produce softening expand with rotatingshaft (49) more close proximity touch sealing, thereby prevent that effectively water from flowing into motor.

The auto-control protective submerged electric pump that is applicable to shallow water operations includes the auto-control protective motor, water inlet joint (54), water pump etc., the auto-control protective motor includes motor and motor auto-control protective device, motor auto-control protective device includes the mercury thermometer relay that is installed in the motor and is installed in the automatic control seal integral-type sealing case of motor terminal and " zero " line in automatic control sealing double mechanical seal and shunt release and ground wire or the power supply, described mercury thermometer relay comprises mercury thermoneter (55), one end of mercury thermoneter (55) has a mercury column cap (56), mercury thermoneter (55) the other end is pressed in the position of designing requirement temperature number for example at 30 ℃, 40 ℃, 50 ℃, there is one in 60 ℃ of positions respectively not by mercury dissolving and first conductive hoop (57) that is not adhered to by mercury, second conductive hoop (58), the 3rd conductive hoop (59), the 4th conductive hoop (60), first, two, three, four conductive hoops (57,58,59,60) central authorities have a circular hole internal diameter to equal the mercury column motion circular hole internal diameter in the mercury thermoneter (55) respectively and communicate one by one, first, two, three, four conductive hoops (57,58,59,60) maintain distance or gap between respectively, first, two, three, four conductive hoops (57,58,59,60) outer wall links one first electric lead (61) respectively, second electric lead (62), the 3rd electric lead (63), the 4th electric lead (64) also stretches out from mercury thermoneter (55) respectively, first, two, three, four electric leads (61,62,63,64) maintain distance or gap between respectively, stretch out first outside the mercury thermoneter (55), two, three, four electric leads (61,62,63,64) load onto spaghetti or spraying insulated paint respectively, the diverse location that temperature according to motor when working properly and mercury thermometer relay are installed in the motor selects to mate first in the mercury thermometer relay, two, three, four conductive hoops (57,58,59,60) link first respectively, two, three, four electric leads (61,62,63,64) for example select the 3rd conductive hoop (59) to link the 3rd electric lead (63) and link together or connect with " zero " line cable in stretching into motor with screw (66) locking with End cover for motor (65), the 4th conductive hoop (60) links the 4th electric lead (64) and connects or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually (67) in the motor three-phase electricity; Described automatic control seal integral-type sealing case includes integral sealed box (68) and electric lead, integral sealed box (68) shell both-end saves (54) and " zero " shape rubber sealing ring (69 with End cover for motor (65) and water inlet respectively, 70) sealing that contacts one by one, stretch in integral sealed box (68) the shell bottom surface in the end cap (65) metallic channel is arranged, " zero " shape rubber sealing ring (71) and a stationary ring (72) and the rotating ring (73) that metallic material is made that insulating material is made are arranged in the bottom surface, have one by the circular hole of the designing requirement degree of depth and penetrate electric lead (74) at stationary ring (72), the electric lead (74) that stretches out stationary ring (72) is loaded onto spaghetti or spraying insulated paint and the circular hole (75) of the metallic channel in integral sealed box (68) shell bottom surface from end cap (65) and is stretched into motor and connect with the arbitrary electrical cables mutually (67) in the motor three-phase electricity; Motor casing links " mould " line cable (76) and locks with screw (77); Described shunt release is installed in the can of drying of a good airproof performance or in the box of other material and be placed in dry ventilate local or indoor, corresponding with feed cable energising or the outage of threading off of connecting of shunt release coupling motor power (output) with motor cable, shunt opening trip coil one end in the shunt release is connected or is connected with " zero " line cable in stretching into motor with " zero " line cable (76) that links motor casing, the shunt opening trip coil the other end is connected with the ground wire cable or is connected with " zero " line cable in the power supply, near near the moist soil that this ground wire is installed in the power supply or motor is.When breaking down in the auto-control protective submerged electric pump energising work with problem, for example water pump vane is stopped up by foreign material, traffic overload, long-time low voltage, phase shortage, motor is absorbed in and causes cooling water deficiency or motor dehydration etc. all can cause motor temperature to rise in the silt, be installed in that mercury column cap (56) mercury column in the mercury thermoneter (55) in the motor rises along with motor temperature and the sensitive reaction energising that contacts with charged the 4th conductive hoop (60) when rising to 60 ℃ of designing requirement temperature, therefore the 3rd conductive hoop (59) in 50 ℃ of positions of charged mercury column contact links connect with motor casing binding " zero " line cable (76) " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of the 3rd electric lead (63) and end cap (65) switches on one by one shunt release is cut off the electricity supply automatically, thereby prevents that effectively motor from burning out; Cause when electric leakage takes place connect " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of " zero " line cable (76) that links motor casing to switch on one by one shunt release is cut off the electricity supply automatically when auto-control protective submerged electric pump is unexpected, thereby prevent the electric leakage accident effectively; Charged electric lead (74) in making metal rotating ring (73) and penetrate stationary ring (72) when stationary ring (72) may wear to designing requirement length contacts energising, therefore connect with motor casing binding " zero " line cable (76) " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of charged rotating ring (73) is switched on one by one shunt release is cut off the electricity supply automatically, at this moment stationary ring (72) still is in the sealing that contacts with rotating ring (73), thereby prevents that effectively water from flowing into motor; Described automatic control sealing double mechanical seal includes the double mechanical seal (78 that insulating material is made, 79) and insulated ring box (80), double mechanical seal (78,79) respectively with the sealing that contacts one by one of electric work machine end cap (81) and water inlet joint (82) and rotatingshaft (83), insulated ring box (80) links together with screw (84) and end cap (81), having a conductive ring (85) to link a cable (86) in the insulated ring box (80) stretches out the screw of insulated ring box from end cap (81) and stretches into motor and connect or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity, and the locking of the screw in the end cap (81) is made the sealing that contacts one by one of cable (86) and " zero " shape rubber sealing ring (88) and end cap (81) with Cock screw (87) and " zero " shape rubber sealing ring (88), motor casing links " zero " line cable and connects one by one with " zero " line cable in shunt opening trip coil and ground wire cable or the power supply, conductive ring conductive ring (85) and double mechanical seal (78,79) and maintain between the end cap (81) distance or the gap, (79 when leaking when the double mechanical seal in the water inlet joint (82), water flows into insulated ring box (80) energising that contacts with charged conductive ring (85), charged water and end cap (81) and motor casing link connect " zero " line cable in shunt opening trip coil and ground wire cable or the power supply of cable and switch on one by one shunt release is cut off the electricity supply automatically, at this moment the double mechanical seal (78) in the End cover for motor (81) still is in sealing state, thereby prevents that effectively water from flowing into motor; When End cover for motor (89) and motor casing all are plastics, there are large and small conductive ring (91,92) to link cable (93,94) respectively in the insulated ring box (90) and stretch out the insulated ring box from end cap (89)

In screw stretch in the motor, with Cock screw (95,96) and " zero " shape rubber sealing ring (97,98) the screw in the end cap (89) locking make cable (93) and " zero " shape rubber sealing ring (97) and cable (94) and " zero " shape rubber sealing ring (98) respectively with end cap (89) sealing that contacts one by one, maintain distance or gap between big conductive ring (91) and the little conductive ring (92), insulated ring box (90) internal diameter also links together with screw and end cap (89) less than little conductive ring (92) internal diameter, insulated ring box (90) and double mechanical seal (99,100) maintain distance or gap between, double mechanical seal (99,100) respectively with the sealing that contacts one by one of End cover for motor (89) and water inlet joint (101) and rotatingshaft (102).Big conductive ring (91) links cable (93) connects or connects with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity, and little conductive ring (92) links cable (94) and connects one by one with " zero " line cable in " zero " the line cable that stretches into motor and shunt opening trip coil and ground wire cable or the power supply; Perhaps little conductive ring (92) binding cable (94) is connected or is connected with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity, big conductive ring (91) links cable (93) and stretch into interior " zero " the line cable of motor and " zero " line cable in shunt opening trip coil and ground wire cable or the power supply is connected one by one; Double mechanical seal (100) in water inlet joint (101) is when leaking.Water flows into insulated ring box (90) and contacts with charged big conductive ring (91) and switch on or contact with charged little conductive ring (92) energising, charged water and little conductive ring (92) or link cable (93) with big conductive ring (91) and connect and stretch into interior " zero " the line cable of motor and " zero " cable in shunt opening trip coil and ground wire cable or the power supply and switch on one by one shunt release is cut off the electricity supply automatically, at this moment double mechanical seal (99) still is in sealing state.Thereby prevent that effectively water from flowing into motor.

Claims

1, a kind of auto-control protective submerged electric pump includes the auto-control protective motor.Water inlet joint (1).Water pump and check valve; the auto-control protective motor includes motor and motor auto-control protective device; motor auto-control protective device includes mercury thermometer relay that is installed in the motor and the automatic control sealing injection cartridge type mechanical seal that is installed in motor terminal and is installed in the shunt release in dry ventilation or the dry air bells chamber and is installed near the power supply or the ground wire near the moist soil the motor or " zero " line in the power supply; and the coupling cable connect one by one, it is characterized in that:

A, described mercury thermometer relay includes mercury thermoneter (2), one end of mercury thermoneter (2) has a mercury column cap (3), mercury thermoneter (2) the other end is pressed in the position of designing requirement temperature number for example at 30 ℃, 40 ℃, 50 ℃, there is one in 60 ℃ of positions respectively not by mercury dissolving and first conductive hoop (4) that is not adhered to by mercury, second conductive hoop (5), the 3rd conductive hoop (6), the 4th conductive hoop (7), first, two, three, four conductive hoops (4,5,6,7) central authorities have a circular hole internal diameter to equal the mercury column motion circular hole internal diameter in the mercury thermoneter (2) respectively and communicate one by one, first, two, three, four conductive hoops (4,5,6,7) maintain distance or gap between respectively, first, two, three, four conductive hoops (4,5,6,7) outer wall links one first electric lead (8) respectively, second electric lead (9), the 3rd electric lead (10), the 4th electric lead (11) also stretches out from mercury thermoneter (2) respectively, first, two, three, four electric leads (8,9,10,11) maintain distance or gap between respectively, stretch out first outside the mercury thermoneter (2), two, three, four electric leads (8,9,10,11) load onto spaghetti or spraying insulated paint respectively, the diverse location that temperature according to motor when working properly and mercury thermometer relay are installed in the motor selects to mate first in the mercury thermometer relay, two, three, four conductive hoops (4,5,6,7) link first respectively, two, three, four electric leads (8,9,10,11) for example select the 3rd conductive hoop (6) to link the 3rd electric lead (10) and link together with screw (13) with end cap (12), the 4th conductive hoop (7) links the 4th electric lead (11) and connects with the arbitrary electrical cables mutually (14) in the motor three-phase electricity;

B, described automatic control sealing injection cartridge type mechanical seal includes injection cartridge type mechanical seal and electric lead, the injection cartridge type mechanical seal includes the shell (15) of flange plate, spring (17) is arranged in the shell (15), positioning disk (18), stationary ring (19) and rotating ring (20) that metal is made, there are multiple tracks " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring (24 in shell (15) upper end, 25) with stationary ring (19) sealing that contacts one by one, the sealing that contacts one by one of " zero " shape rubber sealing ring groove in shell (15) upper end and the water inlet joint (1) and " zero " shape rubber sealing ring (36), keyway and the circular hole by the designing requirement degree of depth that stationary ring (19) lower end has a pair of protruding key to stretch in the positioning disk (18) penetrate an electric lead (28) of loading onto spaghetti or spraying insulated paint, stretch out the outer metallic channel (23) of the metallic channel of electric lead (28) in positioning disk (18) from shell (15) of stationary ring (19) and the screw in the end cap (12) stretch in the motor with the motor three-phase electricity in arbitrary electrical cables mutually (14) connect, this big end of internal diameter has the sealing that contacts one by one of one or multi-channel " zero " shape rubber sealing ring groove and " zero " shape rubber sealing ring (32) and rotatingshaft (31) in the rotating ring (20), and spring (17) power is via little (26 of positioning disk (18), 27) along sliding-groove (21,22) effect stationary ring (19) opposite shell (15) produces and to move axially the sealing that contacts with rotating ring (20);

C, corresponding with feed cable energising or the outage of threading off of connecting with motor cable of described shunt release coupling motor power (output), shunt opening trip coil one end in the shunt release is connected with " zero " line cable (38) that links motor casing, the shunt opening trip coil the other end is connected with the ground wire cable.

2; auto-control protective submerged electric pump according to claim 1; it is characterized in that: described automatic control sealing injection cartridge type mechanical seal is made stationary ring (40) and rotating ring (41) with insulating material; spring washer (43) is arranged below the spring (42) successively; the first road leather cup (44); insulated ring box (45); the second road leather cup (46) also makes first with screw (47) and end cap (48) locking; two road leather cups (44; 46) respectively with the sealing that contacts one by one of rotatingshaft (49) and end cap (48); a conductive ring (50) and rotatingshaft (49) and first are arranged in the insulated ring box (45); two road leather cups (44; 46) maintain distance or gap between respectively, conductive ring (50) links that a cable (51) stretches out from insulated ring box (50) and the screw in end cap (48) stretch into motor in the motor three-phase electricity in arbitrary electrical cables mutually connect or connect with motor single-phase electricity cable.

3; auto-control protective submerged electric pump according to claim 1; it is characterized in that: described automatic control seal integral-type sealing case includes integral sealed box (68) and electric lead; integral sealed box (68) saves (54) and " zero " shape rubber sealing ring (69 with End cover for motor (65) and water inlet respectively; 70) sealing that contacts one by one; stretch in integral sealed box (68) the shell bottom surface in the end cap (65) metallic channel is arranged; " zero " shape rubber sealing ring (71) and a stationary ring (72) and the metal rotating ring (73) that insulating material is made are arranged in the bottom surface; have a circular hole to penetrate electric lead (74) in the stationary ring (72) by the designing requirement degree of depth, the electric lead (74) that stretches out stationary ring (72) load onto spaghetti or spraying insulated paint and the circular hole (75) of the metallic channel in integral sealed box (68) shell bottom surface from end cap (65) stretch into motor in the motor three-phase electricity in arbitrary electrical cables mutually (67) connect or connect with motor single-phase electricity cable.

4; auto-control protective submerged electric pump according to claim 1; it is characterized in that: described automatic control sealing double mechanical seal includes the double mechanical seal (78 that insulating material is made; 79) and insulated ring box (80); double mechanical seal (78; 79) respectively with the sealing that contacts one by one of End cover for motor (81) and water inlet joint (82) and rotatingshaft (83); have in the insulated ring box (80) conductive ring (85) link a cable (86) stretch out the screw of insulated ring box from end cap (81) stretch in the motor with the motor three-phase electricity in arbitrary series connection of electrical cables mutually or connect conductive ring (85) and double mechanical seal (78 with motor single-phase electricity cable; 79) and maintain respectively between the end cap (81) distance or the gap.

5, auto-control protective submerged electric pump according to claim 1.It is characterized in that: described the 4th conductive hoop (7) links the 4th electric lead (11) and connects with motor single-phase electricity cable, electric lead (28) stretches in the motor and connects with motor single-phase electricity cable, " zero " line cable in the 3rd conductive hoop (6) links the 3rd electric lead (10) and stretches into motor is connected, and shunt opening trip coil one end is connected with " zero " line cable in stretching into motor, the other end is connected with " zero " line cable in the power supply.

6; auto-control protective submerged electric pump according to claim 1; it is characterized in that: described auto-control protective submerged electric pump is installed in when fixing the local work that does not shake; make position by designing requirement temperature number for example at 50 ℃ with the making method of electric contact thermometer; there is a platinum wire to contact in 60 ℃ the position respectively with the motion mercury column; platinum wire in 50 ℃ of positions links cable connects with screw lock or with " zero " line cable in stretching into motor with End cover for motor, and the platinum wire in 60 ℃ of positions links cable and connects or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity.

7; auto-control protective submerged electric pump according to claim 1; it is characterized in that: have pillow block rank that the rotating ring internal diameter is divided into large and small two ends in the described rotating ring (20) and be rotated axle (31) and withstand; big this end of internal diameter has the sealing that contacts one by one of one or multi-channel " zero " shape seal groove and " zero " shape rubber sealing ring (32) and rotatingshaft (31) in the rotating ring (20), and the rotatingshaft (35) that middle this little end of internal diameter of rotating ring (20) has a pair of keyway (33,34) and is mounted water pump vane passes.

8, auto-control protective submerged electric pump according to claim 4, it is characterized in that: when described End cover for motor (89) and motor casing all are plastics, have big in the insulated ring box (90), little conductive ring (91,92) link cable (93 respectively, 94) stretching out the screw of insulated ring box from end cap (89) stretches in the motor, maintain distance or gap between big conductive ring (91) and the slight conductive ring (92), insulated ring box (90) internal diameter also links together with screw and end cap (89) less than little conductive ring (92) internal diameter, insulated ring box (90) and double mechanical seal (99,100) maintain distance or gap between, big conductive ring (91) links cable (93) connects or connects with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity, and little conductive ring (92) links cable (94) and stretches into interior " zero " line cable of motor and connect; Perhaps big conductive ring (91) links cable (93) and stretches into interior " zero " line cable of motor and connect, and little conductive ring (92) links cable (94) and connects or connect with motor single-phase electricity cable with the arbitrary electrical cables mutually in the motor three-phase electricity.