CN102536842A - Dry type-wet type dual-purpose pump unit - Google Patents
Dry type-wet type dual-purpose pump unit Download PDFInfo
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- CN102536842A CN102536842A CN2012100153313A CN201210015331A CN102536842A CN 102536842 A CN102536842 A CN 102536842A CN 2012100153313 A CN2012100153313 A CN 2012100153313A CN 201210015331 A CN201210015331 A CN 201210015331A CN 102536842 A CN102536842 A CN 102536842A
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Abstract
The invention belongs to the technical field of centrifugal pumps, and particularly relates to a dry type-wet type dual-purpose pump unit which is especially applicable to main drainage, intense drainage and polymictic drainage after flooding in mine production. The dry type-wet type dual-purpose pump unit comprises a motor, a water pump driven to run by the motor and a cooling unit arranged on the outer side of the motor; the motor is communicated with the cooling unit by an opening in the motor shell and a cooling water passage, so as to form a cooling circulating system used for cooling the interior of the motor. The dry type-wet type dual-purpose pump unit can work normally not only by being exposed in the air, but also by submerging into water when the accident of flooding occurs to a mine, thereby not affecting the drainage performance of the pump unit. The pump unit of the invention changes the defects that the existing pump unit can only be driven to dissipate heat or be cooled in a passive manner, and as long as the motor and the water pump start to work, the cooling circulating system starts to work, thereby achieving the purpose of actively and efficiently cooling the motor in real time, and ensuring the safe and stable work of the pump unit under both dry type and wet type working conditions.
Description
Technical field
The invention belongs to the centrifugal pump technical group field, be specifically related to a kind of be specially adapted to the mine produce main draining, forced-ventilated water and flood well after the dry type-wet double-purpose pump group of complex ore draining.
Background technique
The centrifugal pump group is made up of motor and centrifugal pump, and prior motor is divided into two kinds of dry type motor and wet type electric motors.So-called dry type motor also is that motor can only move in air, and can not do not had by water logging or logged operating mode under work.So-called wet type electric motor then is to be provided with coolant flow channel at motor internal, and when motor was worked under covered operating mode, Environmental Water was cooled off motor through the coolant flow channel of motor internal, thereby had guaranteed the stable operation of wet type electric motor; But when wet type electric motor moves in air, owing to there is not Environmental Water that motor is cooled off, with making motor to be burnt and can not work owing to the reason of high temperature.
At present the mine adopts wear-resisting multistage centrifugal pump and motor to match with as the production main pumping equipment usually; The water pump rotating shaft of said wear-resisting multistage centrifugal pump adopts cylindrical roller bearing as two end supports; Described cylindrical roller bearing adopts grease or thin oil lubricant; This supporting structure is moved also promptly to be in when moving under the dry type operating mode in air and can be kept working state preferably; But its maximum shortcoming is the operation of can not diving under water, when wear-resisting multistage centrifugal pump diving moves, because the inner lubricating and cooling system water inlet of the cylindrical roller bearing at water pump rotating shaft two ends; Thereby cause bearing heating to damage, and then centrifugal pump quit work and lose drainage.
Yet when producing in the mine; The centrifugal pump group will need in air also be often also is alternation under the wet type operating mode under dry type operating mode or the covered situation; As shown in Figure 1, be the dry-running water level shown in the low points A, then the wet type operating water level shown in the high site B; Also promptly when water level is B, motor and water pump in the centrifugal pump group all are immersed in the water.When the mine happens suddenly permeable and even floods the ore deposit phenomenon, water level will reach the B place, and this moment, dry type motor and common wear-resisting multistage centrifugal pump not only can not be worked, also can be because of not had by water logging and possibly being damaged; Though Wet-type centrifugal pump group can be under covered situation proper functioning with draining; But when water level is descended by B gradually; Wet type electric motor and water pump in the Wet-type centrifugal pump group also will be exposed in the air gradually, thereby make the inner heat that produces of wet type electric motor be difficult in time dissipate, and the work of wet type electric motor will be had a strong impact on; When water level continued to reduce, then wet type electric motor possibly burnt and can't be worked.
This shows that existing centrifugal pump group happens suddenly in the mine and will lose drainage passively when permeable and cause flooding the ore deposit, even the accident that causes casualties, and to causing great economic loss in the mine, therefore demands urgently improving.
Summary of the invention
The purpose of this invention is to provide a kind of dry type-wet double-purpose pump group; This pump group not only can also promptly be moved under the dry type operating mode in air; And can be submerged or logged situation under also promptly under the wet type operating mode, move, simultaneously this pump group is simple in structure, safe and reliable.
Be to realize the foregoing invention purpose, the technological scheme that the present invention adopted is: a kind of dry type-wet double-purpose pump group, this pump group comprise motor, by the centrifugal pump of motor driving operation and the cooling unit that is arranged on the motor outside; The cooling recirculation system that said motor is connected with cooling unit and to constitute motor internal is cooled off through opening on the electric machine casing and cooling water pipeline; Said centrifugal pump comprises the bearing support that is used to support the water pump roller end; Be provided with sliding bearing between said bearing support and the water pump rotating shaft, and centrifugal pump is provided with the stage head water of quoting centrifugal pump so that sliding bearing keeps the bearing lubrication cooling mechanism of proper functioning.
Simultaneously, the present invention can also be able to further realization through following technical measures:
Said motor internal is provided with machine shaft; Wear on the axle body of machine shaft and be fixed with the rotor that rotates with machine shaft; The outside of rotor is arranged with and is fixed on the inboard stator of electric machine casing, and the end away from water pump of said machine shaft is provided with the cooling water circuit impeller that drives in the cooling recirculation system.
Said cooling water pipeline comprises cooling water pipeline and CWR road; One end of cooling water pipeline links to each other with the water-supplying mouth on being arranged on electric machine casing; The other end of cooling water pipeline links to each other with the cooling water intake of cooling unit; One end in CWR road links to each other with the backwater mouth on being arranged on electric machine casing, and the other end in CWR road links to each other with the cooling water outlet of cooling unit; Water-supplying mouth on the said electric machine casing is arranged on the side near water pump of stator, and the backwater mouth on the said electric machine casing is arranged on the end away from water pump of impeller.
Preferably; Said cooling unit is cooler; Cooler comprises the cooler casing of closed shape and the conduit pipe that in cooler casing, passes; Said conduit pipe is connected with the water outlet of water pump, is provided with the but logical cooling water passage of current of cooling between the inwall of said cooler casing and the outer wall of conduit pipe, and said cooling water intake, cooling water outlet branch are located on the cooler casing; Said cooler casing is cylindric, and the axis of cooler casing and conduit pipe overlaps each other.
Said cooling water intake is arranged on the downside of cooler casing, and cooling water outlet is arranged on the upside of cooler casing; Said cooling water passage is arranged between cooling water intake and the cooling water outlet and is provided with a plurality ofly, and a plurality of cooling water passages are equably around all sides that are laid in conduit pipe, and the axis of said cooling water passage and the axis of conduit pipe parallel.
Preferably, stretching out at the two end part of cooler casing of said conduit pipe is provided with adpting flange, so that being connected of conduit pipe and pump outlet or other pipelines.
The material of said sliding bearing is that the mixed fibre self lubricating material also is the F102 polymer composite; The outside of said water pump rotating shaft is provided with the lining that matches with sliding bearing, is provided with the bearing lubrication gap that supplies stage head water to pass through between the internal face of sliding bearing and the outer wall of said lining.
Said centrifugal pump comprises inlet segment, stage casing and the water exit end that links to each other successively, and said stage casing is made up of the multistage pump section that is connected in series in the water pump rotating shaft, and increases gradually from the progression of inlet segment one side to water exit end one side pump section; Said bearing lubrication cooling mechanism comprises the lubricated cooling supply channel that is connected with higher one-level pump section; Also comprise the lubricated cooling backwater pipeline that is connected with low one-level pump section, said lubricated cooling supply channel, bearing lubrication gap, lubricated cooling backwater pipeline and complete bearing lubrication cooling mechanism of the common formation of pump section that stage head water is provided.
The arranged outside along water pump rotating shaft bearing of trend of said bearing support has bearing gland, and bearing gland is pressed against the end of sliding bearing; Water supply connecting pipeline between said lubricated cooling supply channel and the said bearing lubrication gap is arranged on the end near bearing support of bearing gland; Backwater connecting pipeline between said lubricated cooling backwater pipeline and the said bearing lubrication gap is arranged on the bearing support, and is arranged on the end away from bearing gland of sliding bearing.
Said water supply connecting pipeline and backwater connecting pipeline are located at the both sides of water pump rotating shaft along the axis branch of water pump rotating shaft.
Beneficial effect of the present invention is:
1), cooler among the present invention and the impeller that is arranged on the machine shaft match; When machine operation, machine shaft rotates and drives and does, wet dual-purpose dried up pump work, and water pump is discharged water through the conduit pipe on the cooler; Impeller-driven cooling water flow on the machine shaft is through motor internal at this moment; Thereby take away the heat of motor internal and be heated, heated cooling water gets into the cooling water passage in the cooler through the cooling water pipeline, cooling water in cooling water passage through the time with conduit pipe in cold water produce heat exchange and quilt is lowered the temperature; Cooling water after the cooling gets into electric machine casing inside once more through the CWR road; And to the motor cooling of lowering the temperature, constantly circulation has guaranteed the work that motor safety is stable thus.
2), the present invention has adopted the spring bearing of sliding bearing as the water pump roller end; Adopt water that sliding bearing is lubricated cooling simultaneously; This support device can be exposed in the air multistage centrifugal pump and works, and the proper functioning that pulls the plug when permeable that can happen suddenly in the mine again also promptly adopts multistage centrifugal pump of the present invention both can under the dry type operating mode, move; Also can under the wet type operating mode, work, thereby can not influence the drainage performance of entire pump group.
3), further; The present invention can be exposed to proper functioning in the air, and the proper functioning that pulls the plug when permeable that can happen suddenly in the mine again also is that the pump group among the present invention both can be moved under the dry type operating mode; Also can under the wet type operating mode, work, thereby can not influence the drainage performance of pump group.
4), the impeller among the present invention is a driver part; Cooler is a cooling-part; Thus the present invention changed pump group in the past can only passive heat radiation or the mode of cooling, as long as motor and water pump are started working, promptly start working by the cooling recirculation system that impeller and cooler constitute; Thereby realize the active of motor and cooling action real-time and efficiently, guaranteed the work that this pump group all can safety and stability under dry type or wet type operating mode.
5), the material of sliding bearing is that the mixed fibre self lubricating material also is the F102 polymer composite among the present invention; Therefore sliding bearing has advantages such as running-in ability height, wear resistance are good, good corrosion resistance; While is lubricated sliding bearing by multistage centrifugal pump water supply itself and cools off; Reduce the noise and the temperature rise of sliding bearing, and improved the mechanical efficiency and the operational reliability of sliding bearing greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the linkage structure schematic representation of motor and cooler.
Fig. 4 is the structural representation of cooler.
Fig. 5 is the structural representation of multistage centrifugal pump.
Fig. 6 is the structural representation of this support device.
The implication of mark is following among the figure:
10-motor 11-stator 12-rotor 13-machine shaft
14-impeller 15-electric machine casing 20-centrifugal pump 21-pump water inlet
22-outlet pipe 201-bearing support 202-inlet segment 203-first order pump section
204-second level pump section 205-water exit end 206-gimbal 207-Balance disc
The lubricated cooling of the lubricated cooling backwater pipeline 209-of 208-supply channel
210-bearing gland 211-sliding bearing 212-stage casing
213-water pump vane 214-water pump rotating shaft 215-lining
30-cooler 31-cooling water pipeline 32-CWR road
33-cooler casing 34-conduit pipe 35-cooling water passage
The 36-first adpting flange 37-second adpting flange
A-dry-running water level B-wet type operating water level
Embodiment
Like Fig. 1, shown in 2, a kind of dry type-wet double-purpose pump group, this pump group comprise motor 10, drive the centrifugal pump 20 of operation and the cooling unit that is arranged on motor 10 outsides by motor 10; The cooling recirculation system that said motor 10 is connected with cooling unit and to constitute motor 10 inside is cooled off through opening on the electric machine casing 15 and cooling water pipeline; Said centrifugal pump 20 comprises and is used to support water pump rotating shaft 214 bearing at end bodies 201; Be provided with sliding bearing 211 between said bearing support 201 and the water pump rotating shaft 214, and centrifugal pump 20 is provided with the stage head water of quoting centrifugal pump so that sliding bearing 211 keeps the bearing lubrication cooling mechanism of proper functioning.
Described cooling unit both can be independent cooling-part; Also can be the combination of driver part and cooling-part; Can be the combination of variable frequency pump and cooler such as cooling unit; This moment, variable frequency pump can be adjusted the size of cooling water inflow according to the speed of motor speed, to guarantee the cooling effect to motor.
Further; As shown in Figure 3; Said motor 10 inside are provided with machine shaft 13; Wear on the axle body of machine shaft 13 and be fixed with the rotor 12 that rotates with machine shaft 13, the outside of rotor 12 is arranged with the stator 11 that is fixed on electric machine casing 15 inboards, and the end away from centrifugal pump 20 of said machine shaft 13 is provided with the cooling water circuit impeller 14 that drives in the cooling recirculation system.
Said impeller 14 both can directly be fixed on the machine shaft 13, also can link to each other with machine shaft 13 through connected element.
Can know that by technique scheme the present invention is a driver part with the impeller 14 that is installed in machine shaft 13 ends, thereby has made full use of the energy of motor, simplify the structure, also realize simultaneously function that motor is cooled off in real time, guarantee cooling effect.
Preferably; Like Fig. 1, shown in 3; Said cooling water pipeline comprises cooling water pipeline 31 and CWR road 32, and an end of cooling water pipeline 31 links to each other with water-supplying mouth on being arranged on electric machine casing 15, and the other end of cooling water pipeline 31 links to each other with the cooling water intake of cooling unit; One end in CWR road 32 links to each other with backwater mouth on being arranged on electric machine casing 15, and the other end in CWR road 32 links to each other with the cooling water outlet of cooling unit; Water-supplying mouth on the said electric machine casing 15 is arranged on the side near centrifugal pump 20 of stator 11, and the backwater mouth on the said electric machine casing 15 is arranged on the end away from centrifugal pump 20 of impeller 14.
Like Fig. 1,3, shown in 4; Said cooling unit is cooler 30; Cooler 30 comprises the cooler casing 33 of closed shape and the conduit pipe 34 that in cooler casing 33, passes; Said conduit pipe 34 is connected with the water outlet of centrifugal pump 20, is provided with the but logical cooling water passage 35 of current of cooling between the outer wall of the inwall of said cooler casing 33 and conduit pipe 34, and said cooling water intake, cooling water outlet branch are located on the cooler casing 33.
Further, said cooler casing 33 is cylindric, and the axis of cooler casing 33 and conduit pipe 34 overlaps each other.
Like Fig. 3, shown in 4, said cooling water intake is arranged on the downside of cooler casing 33, and cooling water outlet is arranged on the upside of cooler casing 33; Said cooling water passage 35 is arranged between cooling water intake and the cooling water outlet and is provided with a plurality ofly, and a plurality of cooling water passages 35 are equably around all sides that are laid in conduit pipe 34, and the axis of the axis of said cooling water passage 35 and conduit pipe 34 parallels.
Stretching out at the two end part of cooler casing 33 of said conduit pipe 34 is provided with adpting flange; Also promptly like Fig. 3, shown in 4; The upper end of conduit pipe 34 is provided with first adpting flange 36; The lower end is provided with second adpting flange 37, so that conduit pipe 34 is convenient to be connected with water outlet or other pipelines of centrifugal pump 20.
Further, said cooler casing 33 is cylindric, and the axis of cooler casing 33 and conduit pipe 34 overlaps each other.Said cooling water intake is arranged on the downside of cooler casing 33, and cooling water outlet is arranged on the upside of cooler casing 33; Said cooling water passage 35 is arranged between cooling water intake and the cooling water outlet and is provided with a plurality ofly, and a plurality of cooling water passages 35 are equably around all sides that are laid in conduit pipe 34, and the axis of the axis of said cooling water passage 35 and conduit pipe 34 parallels.
Like Fig. 5, shown in 6; Centrifugal pump 20 comprises and is used to support water pump rotating shaft 214 bearing at end bodies 201; Be provided with sliding bearing 211 between said bearing support 201 and the water pump rotating shaft 214, and centrifugal pump 20 is provided with the stage head water of quoting centrifugal pump so that sliding bearing 211 keeps the bearing lubrication cooling mechanism of proper functioning.
Further; The material of said sliding bearing 211 is that the mixed fibre self lubricating material also is the F102 polymer composite; The outside of said water pump rotating shaft 214 is provided with the lining 215 that matches with sliding bearing 211, is provided with the bearing lubrication gap that supplies stage head water to pass through between the outer wall of the internal face of sliding bearing 211 and said lining 215.
As shown in Figure 5; Centrifugal pump 20 comprises inlet segment 202, stage casing 212 and the water exit end 205 that links to each other successively; Said stage casing 212 is made up of the multistage pump section that is connected in series in the water pump rotating shaft 214, and increases gradually from the progression of inlet segment 202 1 sides to water exit end 205 1 side pump sections; Said bearing lubrication cooling mechanism comprises the lubricated cooling supply channel 209 that is connected with higher one-level pump section; Also comprise and lubricated cooling backwater pipeline 208 that low one-level pump section is connected said lubricated cooling supply channel 209, bearing lubrication gap, lubricated cooling backwater pipeline 208 and provide that the pump section of stage head water is common to constitute a complete bearing lubrication cooling mechanism.
Said pump section is i.e. that kind shown in first order pump section 203 or second level pump section 204 also, so the pump section is made up of the cavity that impeller 213, the corresponding pump case of pump case at place, impeller 213 positions are surrounded.
Said higher one-level pump section can be a pump section adjacent one another are with low one-level pump section, also can be non-conterminous pump section.Because the pressure of the water at higher one-level pump section place is greater than the pressure of the water at low one-level pump section place; Therefore the water at higher one-level pump section place gets into low one-level pump section through lubricated cooling supply channel 209, bearing lubrication gap, lubricated cooling backwater pipeline 208 successively under the effect of pressure reduction, thereby has realized the purpose of lubricated cooling sliding bearing 211.
As shown in Figure 6, the arranged outside along water pump rotating shaft 214 bearing of trends of said bearing support 201 has bearing gland 210, and bearing gland 210 is pressed against the end of sliding bearing 211; Water supply connecting pipeline between said lubricated cooling supply channel 209 and the said bearing lubrication gap is arranged on the end near bearing support 201 of bearing gland 210; Backwater connecting pipeline between said lubricated cooling backwater pipeline 208 and the said bearing lubrication gap is arranged on the bearing support 201, and is arranged on the end away from bearing gland 210 of sliding bearing 211.
Further, said water supply connecting pipeline and backwater connecting pipeline are located at the both sides of water pump rotating shaft 214 along the axis branch of water pump rotating shaft 214.Water connecting pipeline shown in Fig. 4 and backwater connecting pipeline promptly divide the both sides up and down that are located at water pump rotating shaft 214, sliding bearing 211 are realized lubricated fully to help water.
Preferably; Said lubricated cooling supply channel 209 is connected with second level pump section 204; Lubricated cooling backwater pipeline 208 is connected with first order pump section 203, lubricated cooling supply channel 209 match with lubricated cooling backwater pipeline 208 make stage head water between second level pump section 204 and the first order pump section 203 through the bearing lubrication gap so that sliding bearing 211 maintenance proper functioning.
Second level pump section 204 is adjacent one another are with first order pump section 203, and the differential water pressures between the two not only can satisfy the needs of lubricated cooling sliding bearing 211, and can not destroy the sealing configuration of sliding bearing 211 both sides, helps the normal and stable operation of centrifugal pump.
Below in conjunction with accompanying drawing working procedure of the present invention is described further.
As shown in Figure 1; Motor 10 is also promptly done with centrifugal pump 20, wet dual-purpose centrifugal pump links to each other; The water intake of centrifugal pump 20 links to each other with pump water inlet 21; The water outlet of centrifugal pump 20 links to each other with second adpting flange 37 of conduit pipe 34 lower ends, and conduit pipe 34 links to each other with outlet pipe 22 through first adpting flange 36 of its upper end.
Like Fig. 1, shown in 3; Cooling water intake on the cooler casing 33 is through the water-supplying mouth on cooling water pipeline 31 and the electric machine casing 15, and the cooling water outlet on the cooler casing 33 links to each other with backwater mouth on the electric machine casing 15 through CWR road 32.
Backwater mouth on cooling channel between impeller 14 shown in Fig. 3, motor internal stator 11 and the rotor 12, the water-supplying mouth on the electric machine casing 15, cooling water pipeline 31, cooler 30, CWR road 32 and the electric machine casing 15 is connected with each other to constitute a complete cooling recirculation system, and cooling water circulates in cooling recirculation system so that motor 10 is cooled off.
As shown in Figure 5; Centrifugal pump 20 comprises inlet segment 202, stage casing 212 and the water exit end 205 that links to each other successively; Said stage casing 212 is made up of the multistage pump section that is connected in series in the water pump rotating shaft 214; The two ends of said water pump rotating shaft 214 are provided with bearing support 201, and the outside mask along the bearing of trend of water pump rotating shaft 214 of bearing support 201 is provided with bearing gland 210, between said bearing gland 210 and the water pump rotating shaft 214 and bearing support 201 be provided with seal arrangement near the end at pump section place.Second level pump section 204 is lubricated cooling water to the sliding bearing supply at water pump rotating shaft 214 two ends respectively through threeway and lubricated cooling supply channel 209, and lubricated cooling water is back to first order pump section 203 places through two lubricated cooling backwater pipelines 208 with threeway again.
Dotted arrow among Fig. 1,2 is depicted as the water (flow) direction in the centrifugal pump 20, the solid arrow among Fig. 3,4 be depicted as in the cooling recirculation system cooling water flow to, the solid arrow among Fig. 6 be depicted as in the bearing lubrication cooling mechanism lubricated cooling water flow to.
When motor 10 work; Machine shaft 13 rotates and driving is done, wet dual-purpose dried up pump work, and centrifugal pump 20 is discharged water through the conduit pipe on the cooler 30 34, and the impeller on the machine shaft 13 14 drives cooling water flows through motor 10 inside at this moment; Also be to flow through in the gap of cooling water between stator 11 and rotor 12; Thereby take away the heat of motor internal and be heated, the cooling water passage 35 that heated cooling water gets in the coolers 30 through cooling water pipeline 31, cooling water cooling water passage 35 in through the time with conduit pipe 34 in cold water generation heat exchange and quilt lowered the temperature; Cooling water after the cooling gets into electric machine casing 15 inside once more through CWR road 32; And to motor 10 cooling of lowering the temperature, constantly circulation has guaranteed the work of motor 10 safety and stability thus.
Meanwhile, the water pump vane 213 that water pump rotating shaft 214 drives on it rotates, and centrifugal pump 20 draws water through pump water inlet 21 thus, and through water pipe 22 drainings, has been full of water in the inner chamber of centrifugal pump 20 at this moment.Higher one-level pump section also is the hydraulic pressure height that the relatively lower one-level pump section of the hydraulic pressure at pump section 204 places, the second level also is first order pump section 203 places; Therefore the water of second level pump section 204 is supplied lubricated cooling water to the sliding bearing 211 at water pump rotating shaft 214 two ends respectively through threeway and lubricated cooling supply channel 209; Lubricated cooling water is through the bearing lubrication gap between sliding bearing 211 and the lining 215; Thereby realized lubricated and cooling to sliding bearing 211; Lubricated cooling water is back to first order pump section 203 places through lubricated cooling backwater pipeline 208 with threeway subsequently, and constantly circulation has guaranteed the work of centrifugal pump 20 safety and stability thus.
Claims (10)
1. dry type-wet double-purpose pump group is characterized in that: the cooling unit that this pump group comprises motor (10), driven the centrifugal pump (20) of operation and be arranged on motor (10) outside by motor (10); The cooling recirculation system that said motor (10) is connected with cooling unit and to constitute motor (10) inside is cooled off through opening on the electric machine casing (15) and cooling water pipeline; Said centrifugal pump (20) comprises and is used to support water pump rotating shaft (214) bearing at end body (201); Be provided with sliding bearing (211) between said bearing support (201) and the water pump rotating shaft (214), and centrifugal pump (20) is provided with the stage head water of quoting centrifugal pump so that sliding bearing (211) keeps the bearing lubrication cooling mechanism of proper functioning.
2. dry type according to claim 1-wet double-purpose pump group; It is characterized in that: said motor (10) inside is provided with machine shaft (13); Wear on the axle body of machine shaft (13) and be fixed with the rotor (12) that rotates with machine shaft (13); The outside of rotor (12) is arranged with and is fixed on the inboard stator (11) of electric machine casing (15), and the end away from centrifugal pump (20) of said machine shaft (13) is provided with the cooling water circuit impeller (14) that drives in the cooling recirculation system.
3. dry type according to claim 2-wet double-purpose pump group; It is characterized in that: said cooling water pipeline comprises cooling water pipeline (31) and CWR road (32); One end of cooling water pipeline (31) links to each other with water-supplying mouth on being arranged on electric machine casing (15); The other end of cooling water pipeline (31) links to each other with the cooling water intake of cooling unit; One end in CWR road (32) links to each other with backwater mouth on being arranged on electric machine casing (15), and the other end of CWR road (32) links to each other with the cooling water outlet of cooling unit; Water-supplying mouth on the said electric machine casing (15) is arranged on the side near centrifugal pump (20) of stator (11), and the backwater mouth on the said electric machine casing (15) is arranged on the end away from centrifugal pump (20) of impeller (14).
4. according to claim 1 or 2 or 3 described dry types-wet double-purpose pump group; It is characterized in that: said cooling unit is cooler (30); Cooler (30) comprises the cooler casing (33) of closed shape and the conduit pipe (34) that in cooler casing (33), passes; Said conduit pipe (34) is connected with the water outlet of centrifugal pump (20); Be provided with the but logical cooling water passage (35) of current of cooling between the outer wall of the inwall of said cooler casing (33) and conduit pipe (34), said cooling water intake, cooling water outlet branch are located on the cooler casing (33); Said cooler casing (33) is cylindric, and the axis of cooler casing (33) and conduit pipe (34) overlaps each other.
5. dry type according to claim 4-wet double-purpose pump group, it is characterized in that: said cooling water intake is arranged on the downside of cooler casing (33), and cooling water outlet is arranged on the upside of cooler casing (33); Said cooling water passage (35) is arranged between cooling water intake and the cooling water outlet and is provided with a plurality of; A plurality of cooling water passages (35) are equably around all sides that are laid in conduit pipe (34), and the axis of the axis of said cooling water passage (35) and conduit pipe (34) parallels.
6. dry type according to claim 4-wet double-purpose pump group is characterized in that: stretching out at the two end part of cooler casing (33) of said conduit pipe (34) is provided with adpting flange.
7. according to claim 1 or 2 or 3 described dry types-wet double-purpose pump group; It is characterized in that: the material of said sliding bearing (211) is that the mixed fibre self lubricating material also is the F102 polymer composite; The outside of said water pump rotating shaft (214) is provided with the lining (215) that matches with sliding bearing (211), is provided with the bearing lubrication gap that supplies stage head water to pass through between the outer wall of the internal face of sliding bearing (211) and said lining (215).
8. the water pump rotating shaft support device that is used for multistage centrifugal pump according to claim 7; It is characterized in that: said centrifugal pump comprises inlet segment (202), stage casing (212) and the water exit end (205) that links to each other successively; Said stage casing (212) is made up of the multistage pump section that is connected in series in the water pump rotating shaft (214), and increases gradually from the progression of inlet segment (202) one side to water exit ends (205) one side pump sections; Said bearing lubrication cooling mechanism comprises the lubricated cooling supply channel (209) that is connected with higher one-level pump section; Also comprise the lubricated cooling backwater pipeline (208) that is connected with low one-level pump section, said lubricated cooling supply channel (209), bearing lubrication gap, lubricated cooling backwater pipeline (208) and complete bearing lubrication cooling mechanism of the common formation of pump section that stage head water is provided.
9. the water pump rotating shaft support device that is used for multistage centrifugal pump according to claim 8; It is characterized in that: the arranged outside along water pump rotating shaft (214) bearing of trend of said bearing support (201) has bearing gland (210), and bearing gland (210) is pressed against the end of sliding bearing (211); Water supply connecting pipeline between said lubricated cooling supply channel (209) and the said bearing lubrication gap is arranged on the end near bearing support (201) of bearing gland (210); Backwater connecting pipeline between said lubricated cooling backwater pipeline (208) and the said bearing lubrication gap is arranged on the bearing support (201), and is arranged on the end away from bearing gland (210) of sliding bearing (211).
10. the water pump rotating shaft support device that is used for multistage centrifugal pump according to claim 9 is characterized in that: said water supply connecting pipeline and backwater connecting pipeline are located at the both sides of water pump rotating shaft (214) along the axis branch of water pump rotating shaft (214).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100153313A CN102536842A (en) | 2012-01-18 | 2012-01-18 | Dry type-wet type dual-purpose pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100153313A CN102536842A (en) | 2012-01-18 | 2012-01-18 | Dry type-wet type dual-purpose pump unit |
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| CN102536842A true CN102536842A (en) | 2012-07-04 |
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| CN2012100153313A Pending CN102536842A (en) | 2012-01-18 | 2012-01-18 | Dry type-wet type dual-purpose pump unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058451A1 (en) * | 2014-10-17 | 2016-04-21 | 邢宇 | Coolant or heating fluid circulation system of dual-support centrifugal pump |
| CN108916072A (en) * | 2018-07-27 | 2018-11-30 | 合肥皖化电机技术开发有限责任公司 | A kind of supplement heat rejecter circulator of furnace water pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106918U (en) * | 1991-11-23 | 1992-06-10 | 邯郸矿务局 | Drainage electric pump for amphibious mines |
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| JP2002310088A (en) * | 2001-04-09 | 2002-10-23 | Aimu Denki Kogyo Kk | Dry type submerged motor pump with cooling water sealed type heat exchanger |
| CN101408199A (en) * | 2008-11-07 | 2009-04-15 | 合肥深井供水设备制造有限公司 | Intelligent water pump |
| CN101644268A (en) * | 2009-08-21 | 2010-02-10 | 江西省万载水泵有限责任公司 | Centrifugal pump |
| CN202483899U (en) * | 2012-01-18 | 2012-10-10 | 合肥三益江海泵业有限公司 | Dry-wet dual-purpose pump set |
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| CN2106918U (en) * | 1991-11-23 | 1992-06-10 | 邯郸矿务局 | Drainage electric pump for amphibious mines |
| CN2345746Y (en) * | 1998-07-07 | 1999-10-27 | 薛铭 | Vertical multi-stage centrifugal pump |
| JP2002310088A (en) * | 2001-04-09 | 2002-10-23 | Aimu Denki Kogyo Kk | Dry type submerged motor pump with cooling water sealed type heat exchanger |
| CN101408199A (en) * | 2008-11-07 | 2009-04-15 | 合肥深井供水设备制造有限公司 | Intelligent water pump |
| CN101644268A (en) * | 2009-08-21 | 2010-02-10 | 江西省万载水泵有限责任公司 | Centrifugal pump |
| CN202483899U (en) * | 2012-01-18 | 2012-10-10 | 合肥三益江海泵业有限公司 | Dry-wet dual-purpose pump set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058451A1 (en) * | 2014-10-17 | 2016-04-21 | 邢宇 | Coolant or heating fluid circulation system of dual-support centrifugal pump |
| US10060446B2 (en) | 2014-10-17 | 2018-08-28 | Tianyi Xing | Cooling or heating fluid circulation system of a double-supported centrifugal pump |
| CN108916072A (en) * | 2018-07-27 | 2018-11-30 | 合肥皖化电机技术开发有限责任公司 | A kind of supplement heat rejecter circulator of furnace water pump |
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Application publication date: 20120704 |