CN209195720U - Long-shaft pump under a kind of vertical solution - Google Patents

Abstract

The utility model relates to long-shaft pump under pump technical field more particularly to a kind of vertical solution, it is provided with starting lubricating system, can be lubricated before long axis pump startup to being passed through lubricating fluid on the inside of sliding bearing；Lubrication cooling, heat-insulation system, by the way that regulating valve is arranged, by adjusting the flow of lubricating fluid, to increase or decrease the heat dissipation effect of sliding bearing；It shuts down, booting rinse-system, after a shutdown or before booting, is passed through flushing liquor in rinsing chamber, be rinsed to chamber is rinsed, prevent from causing to wear there are granule foreign between guide vane and pump shaft；Residual axial force balance system is realized the balance of residual axial force by the balance cylinder formed between thrust disc and sliding bearing, improves the security reliability of long axis pump operation, extend the service life of pump.

Description

Long-shaft pump under a kind of vertical solution

Technical field

The utility model relates to long-shaft pumps under pump housing technical field more particularly to a kind of vertical solution.

Background technique

Under current existing vertical guide-vane liquid in long-shaft pump, there are two types of big patterns: one kind is guide bearing structure type Formula, another kind are rolling bearing structure pattern.Wherein, it is residual to be divided into the weight of entire rotor part, water pump for guide bearing structure pattern Remaining axial force is born by motor and the thrust bearing by being arranged in above pump holder bears two kinds of structures；Rolling bearing structure type Formula is divided into two kinds of structures of common axle envelope and combined automatic drain.

Long-shaft pump has the following problems under existing vertical solution:

First, it is not provided with shutdown rinse-system, the impurity such as silt are easy to be deposited on the sliding in guide vane after water pump is shut down At bearing, when water pump restarting, sliding bearing and pump shaft are prone to wear；

Second, be not provided with residual axial force balance system, at runtime due to water pump, due to impeller assembly water inlet end and The pressure difference of water outlet, and the pressure of water inlet end is greater than the pressure of water outlet, the axial force for causing pump bearing to be received is larger, and then leads The residual axial force for causing water pump operation to generate can increase the damage process of motor or the thrust bearing being arranged in above pump holder；

Third, long-shaft pump is not provided with starting lubricating system under liquid, and water pump is on startup since pumping send media flow to arrive Pump holder outlet needs certain time, to cause water pump upper end sliding bearing Properties of Dry Friction Problems occur, when long-shaft pump under liquid Depth is very long under liquid and water pump pump medium liquid level it is very low when, it is more serious that Properties of Dry Friction Problems occurs in water pump upper end sliding bearing, This is the major reason for causing long-shaft pump under liquid that should not use in petrochemical industry or inflammable and explosive occasion.

Utility model content

The purpose of the utility model is to provide one kind to effectively reduce pump shaft abrasion, improves service life, and improves using stabilization Long-shaft pump under property and the vertical solution of safety.

To achieve the goals above, the utility model provides long-shaft pump under a kind of vertical solution, including control unit, connection Pipe, pump shaft and the impeller assembly, pillar, first bearing component, gland seal assembly and the fixture nut that are installed on pump shaft, the pillar Lubricating cavity is formed between gland seal assembly and pump shaft, the first end of the connecting tube is connect with impeller assembly, the connecting tube Second end is connect with first bearing component, forms pump chamber between the connecting tube and pillar, and the first bearing component includes the One bearing block, first sliding axle are held and thrust disc, and the thrust disc, first sliding axle are held with first bearing seat along pump shaft radial direction side To pump shaft is successively sheathed on, the first sliding axle, which is held, is mounted on first bearing seat, the thrust disc and first sliding axle Balance cylinder is formed between holding, the fixture nut is threadedly coupled for fixing the thrust disc with pump shaft；

The impeller assembly includes impeller and guide vane, the pump shaft sleeve be equipped with second sliding axle hold with the second axle sleeve, it is described Second sliding axle bearing sleeve, which is set, to be fixed on the inside of guide vane, second axle sleeve be sheathed on second sliding axle hold inside and with pump shaft key Connection, the guide vane, second sliding axle, which hold to be formed between the second axle sleeve, rinses chamber, and the guide vane is equipped with flushing hole, the punching Hole flushing is connected to form irrigation channel with chamber is rinsed；

It is described to be connected to form lubrication channel with irrigation channel into drain pipe, lubricating cavity, balance cylinder；

The gland seal assembly is connected with into drain pipe, described to be equipped with the first solenoid valve, first electromagnetism into drain pipe Valve is electrically connected with control unit.

Optionally, the pump chamber is equipped with pressure detector, and the pressure detector is electrically connected with control unit.

Optionally, the pump shaft includes the first coupling spindle, the second coupling spindle and shaft coupling component, and the shaft coupling component includes the One shaft coupling, elastomer block and second shaft coupling, the first shaft coupling are installed on the first coupling spindle, the second coupling spindle installation In the second coupling spindle, the elastomer block couples axis connection, the first shaft coupling and second with the first coupling spindle and second respectively There is the first gap between shaft coupling.

Optionally, the pump shaft sleeve be equipped with first throttle set, the first throttle set be set to lubricating cavity and rinse chamber it Between.

It optionally, further include water outlet horn mouth, the water outlet horn mouth is fixedly connected with connecting tube and impeller assembly respectively, The pump shaft sleeve is equipped with the second throat bushing, and the second axle envelope, the pump shaft are equipped between the water outlet horn mouth and the second throat bushing Second axle envelope gland is installed and the second axle envelope cooperates, the water outlet horn mouth is equipped with lubrication fluid apertures, axle envelope room and throttle orifice, institute The second axle envelope gland is stated equipped with fluid hole, the lubrication fluid apertures is connected to by the fluid hole with pump chamber, and the lubrication fluid apertures connects It is connected to inlet tube, regulating valve is provided on the inlet tube, it is described to be equipped with temperature measuring probe and first pressure inspection into drain pipe Probing head, the regulating valve, temperature measuring probe and first pressure detection probe are electrically connected with control unit.

Optionally, the flushing hole is connected with flushing pipe, and the flushing pipe is provided with second solenoid valve, second pressure detection Probe and third solenoid valve, the second solenoid valve, second pressure detection probe and third solenoid valve are electrically connected with control unit It connects.

Optionally, the thrust disc is equipped with upper rubbing surface, lower rubbing surface and side rubbing surface, and the first sliding axle, which is held, to be equipped with Radial lubrication groove and axial lubrication, between the lower rubbing surface and radial lubrication groove, between side rubbing surface and axial lubrication Combination forms the balance cylinder.

Optionally, the first bearing seat offers the liquid collecting room for collecting the liquid leaked from gland seal assembly, institute It states liquid collecting room and is connected with drain pipe.

Optionally, the gland seal assembly includes axle envelope seat, the first axle envelope and first axle sealed cover, the axle envelope seat and first Bearing block is fixedly connected, and the pump shaft sleeve is equipped with the first axle sleeve, and the first axle big envelope is set on the outside of the first axle sleeve, and described first Axle envelope gland is installed on axle envelope seat for fixing the first axle envelope, and first axle sleeve is connected to thrust disc one end, the fixed spiral shell Box thread is connected to pump shaft for fixing the first axle sleeve and thrust disc, and the axle envelope seat is equipped with thrust ring by screw, described The second gap can be formed on thrust ring and thrust disc between rubbing surface

Optionally, thrust button is equipped between the guide vane and impeller, the thrust button is sheathed on pump shaft, the thrust button with Second sliding axle forms third space between holding, and has the 4th gap between the impeller and guide vane.

Implement the embodiments of the present invention, has following technical effect that

First, it, can be by being passed through lubricating fluid into lubricating cavity to cunning into drain pipe before the long axis pump startup of the utility model Dynamic bearing is lubricated, and occurs the phenomenon that dry friction between sliding bearing and pump shaft after preventing long axis pump startup, effectively improves pump The service life of axis；

Second, when long axis pump operation, when generating residual axial force, carried out by the balance cylinder that thrust disc two sides are formed flat Weigh residual axial force, is lubricated it is not necessary that thrust bearing and lubrication system is in addition arranged, realizes while sliding bearing lubricating The balance of residual axial force；

Third, guide vane, second sliding axle, which hold to be formed between the second axle sleeve, rinses chamber, and guide vane is equipped with flushing hole, flushing hole It is connected to form irrigation channel with chamber is rinsed, before long-shaft pump booting or after use, flushing device can be connected by flushing hole to leading Gap between leaf and pump shaft is rinsed, and is prevented the granule foreign in pumping liquid from remaining between guide vane and pump shaft, is avoided It causes pump shaft or guide vane to generate abrasion when next starting, improves the service life of guide vane and pump shaft；

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the present embodiment one.

Fig. 2 is the upper section structural schematic diagram of the present embodiment one.

Fig. 3 is the middle section structure schematic diagram of the present embodiment one.

Fig. 4 is the lower section structural schematic diagram of the present embodiment one.

Fig. 5 is the enlarged diagram of f in Fig. 1.

Fig. 6 is the enlarged diagram of a in Fig. 2.

Fig. 7 is the enlarged diagram of e in Fig. 6.

Fig. 8 is the enlarged diagram of b in Fig. 4.

Fig. 9 is the enlarged diagram of c in Fig. 4.

Figure 10 is that the first sliding axle of the present embodiment one holds schematic diagram.

Figure 11 is the thrust disc schematic diagram of the present embodiment one.

Figure 12 is the thrust button schematic diagram of the present embodiment one.

Figure 13 is the structural schematic diagram of the present embodiment two.

Figure 14 is the enlarged diagram of d in Figure 13.

Figure 15 is the water outlet horn mouth schematic diagram of the present embodiment two.

Figure 16 is the second axle envelope gland schematic diagram of the present embodiment two.

Description of symbols:

In Fig. 1: 1, upper section；2, middle section；3, lower section；100, lubricating cavity；200, pump chamber；A, the first gap；

In Fig. 2: 4, pump holder；5, connecting tube；6, pillar；7, second bearing seat；8, third sliding bearing；9, the first shaft coupling Device；10, drain pipe；11, third axle sleeve；12, pump shaft；13, pressure detector；14, first bearing seat；15, first sliding axle is held； 16, thrust ring；17, axle envelope seat；18, first axle sealed cover；19, fixture nut；20, water pump coupler；21, the first axle envelope；22, Electric machine support；23, into drain pipe；24, the first solenoid valve；25, the first axle sleeve；26, thrust disc；

In Fig. 3: 5, connecting tube；6, pillar；7, second bearing seat；8, third sliding bearing；9, first shaft coupling；11, Three axle sleeves；12, pump shaft；14, first bearing seat；15, first sliding axle is held；26, thrust disc；27, stopping shim；28, circle spiral shell It is female；29, second shaft coupling；30, elastomer block；

In Fig. 4: 5, connecting tube；6, pillar；12, pump shaft；14, first bearing seat；26, thrust disc；27, stopping shim；28, Round nut；29, second shaft coupling；30, elastomer block；31, flushing hole；32, plug；33, first throttle set；34, the second axle sleeve； 35, second sliding axle is held；36, thrust button；37, impeller；38, water-inlet horn mouth；39, strainer；40, impeller nut；41, guide vane； 42, it is discharged horn mouth；43, chamber is rinsed；

In Fig. 5: 9, first shaft coupling；29, second shaft coupling；30, elastomer block；A, the first gap；

In Fig. 6: 12, pump shaft, 14, first bearing seat；15, first sliding axle is held；16, thrust ring；17, axle envelope seat；21, One axle envelope；25, the first axle sleeve；26, thrust disc；44, O-ring；45, liquid collecting cavity；46, liquid collecting room；

In Fig. 7: 15, first sliding axle is held；16, thrust ring；26, thrust disc；47, balance cylinder；52, annular groove is balanced；B, Two gaps.

In Fig. 8: 12, pump shaft；14, first bearing seat；15, first sliding axle is held, 26, thrust disc, 27, stopping shim；28, Round nut, 44, O-ring；47, balance cylinder；

In Fig. 9: 12, pump shaft；34, the second axle sleeve；35, second sliding axle is held；36, thrust button；43, chamber is rinsed；44, O-shaped Circle；C, third space；D, the 4th gap；

In Figure 10: 48, radial lubrication groove；49, axial lubrication；

In Figure 11: 50, upper rubbing surface；51, lower rubbing surface；52, annular groove is balanced；53, side rubbing surface；261, pan portion, 262, Portions；

In Figure 12: 36, thrust button；54, radial flushed channel；

In Figure 13: 23, into drain pipe；24, the first solenoid valve；55, inlet tube；56, regulating valve；57, temperature measuring probe； 58, first pressure detection probe；59, second pressure detection probe；60, second solenoid valve；61, third solenoid valve；62, it rinses Pipe；42, it is discharged horn mouth；64, the second axle envelope gland；65, the second axle envelope；66, the second throat bushing；

In Figure 14: 12, pump shaft；44, O-ring；64, the second axle envelope gland；65, the second axle envelope；66, the second throat bushing；

In Figure 15: 67, lubricating fluid apertures；68, axle envelope room；69, throttle orifice；

In Figure 16: 64, the second axle envelope gland；70, fluid hole.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.

Embodiment 1:

With reference to Fig. 1~Figure 12, present embodiments provide long-shaft pump under a kind of vertical solution, including control unit, connecting tube 5, Pump shaft 12 and it is installed on the impeller assembly of pump shaft 12, pillar 6, first bearing component, gland seal assembly and fixture nut 19, pillar Lubricating cavity 100 is formed between 6 and gland seal assembly and pump shaft 12, the first end of connecting tube 5 is connect with impeller assembly, connecting tube 5 Second end connect with first bearing component, between connecting tube 5 and pillar 6 formed pump chamber 200, first bearing component include first Bearing block 14, first sliding axle hold 15 and thrust disc 26, thrust disc 26, first sliding axle hold 15 and first bearing seat 14 along pump shaft 12 radial directions are successively sheathed on pump shaft 12, and first sliding axle holds 15 and is mounted on first bearing seat 14, thrust disc 26 and Balance cylinder 47 is formed between one sliding bearing 15, fixture nut 19 is threadedly coupled with pump shaft 12 for fixing thrust disc 26；

When the axial direction that the operating condition of long-shaft pump is changed (when i.e. operating pressure fluctuates and sultry running occurs) or pumped When power is unable to complete equipilibrium, the residual axial force of long-shaft pump is balanced by balance cylinder 47, i.e., when the liquid of pumping is by putting down When weighing apparatus room 47, liquid-driving thrust disc 26 and first sliding axle hold and generate relative motion between 15, make liquid in 47 shape of balance cylinder Water ring is circlewise sealed, has the function that dynamic sealing, so that the pressure of liquid be made to decline, keeps thrust disc 26 sliding close to first The pressure of one end of dynamic bearing 15 is greater than the pressure that separate first sliding axle holds 15 one end, so that the remnants by pump shaft 12 are axial Dynamic balance improves the service life of stability and long-shaft pump that pump shaft 12 works.

With reference to Fig. 4 and Fig. 9, impeller assembly includes impeller 37 and guide vane 41, and pump shaft 12 is arranged with second sliding axle and holds 35 Hes Second axle sleeve 34, second sliding axle, which is held 35 and is arranged, is fixed on 41 inside of guide vane, and the second axle sleeve 34 is sheathed on to be held with second sliding axle It 35 insides and is keyed with pump shaft 12, guide vane 41, second sliding axle hold 35 and second and formed between axle sleeve 34 and rinse chamber 43, lead Leaf 41 is equipped with flushing hole 31, and flushing hole 31 is connected to form irrigation channel with chamber 43 is rinsed, and wherein pump shaft 12 is equipped with impeller nut 40 for fixing impeller assembly；

It can be rinsed by the external flushing device of flushing hole 31, flushing liquor is flowed into through flushing hole 31 and rinses chamber 43, it is right Second sliding axle is held 35 and is rinsed, and removing is deposited in silt and impurity that second sliding axle holds 35；

With reference to Fig. 1 and Fig. 6, gland seal assembly is connected with into drain pipe 23, is equipped with the first solenoid valve 24 into drain pipe 23, the One solenoid valve 24 is electrically connected with control unit；

It is connected to form lubrication channel with irrigation channel into drain pipe 23, lubricating cavity 100, balance cylinder 47.

Pump chamber 200 is equipped with pressure detector 13, and pressure detector 13 is electrically connected with control unit.

Further, with reference to Fig. 1~4 and Fig. 5, the long-shaft pump of the present embodiment includes upper section 1, middle section 2, lower section 3, wherein Pump shaft 12 includes the first coupling spindle, the second coupling spindle and shaft coupling component, and shaft coupling component includes first shaft coupling 9,30 and of elastomer block Second shaft coupling 29, first shaft coupling 9 are installed on the first coupling spindle, and the second coupling spindle is installed on the second coupling spindle, elastomer block 30 Couple axis connection with the first coupling spindle and second respectively, cooperation has between first between first shaft coupling 9 and second shaft coupling 29 Gap A makes between first shaft coupling 9 and second shaft coupling 29 there is the space of axial movement can be buffered by elastomer block 30, The present embodiment has three coupling spindles, is connected by shaft coupling component, and shaft coupling component is locked by round nut 28 and stopping shim 27 It is fixed, wherein those skilled in the art can be according to the quantity of actual use situation setting coupling spindle, and coupling spindle is soft using sectional type Property connection, sliding bearing do not have to the entire rotor weight for bearing pump, solve long-shaft pump because under liquid length it is long due to caused by transport, Vibration, noise hang-up when installation difficulty and pump are using operation, improve the property safe and reliable to operation of pump, extend pump Service life；In addition, three coupling spindles of the present embodiment are connected by first shaft coupling 9, elastomer block 30 and second shaft coupling 29 It connects, by the elastic buffer and reaction force of elastomer block 30, the residual axial force generated at work to pump shaft 12 is balanced, The ability of long-shaft pump balanced residue axial force is further improved, the service life and job stability of long-shaft pump are improved.

With reference to Fig. 6, wherein pump shaft 12 is arranged with first throttle set 33, and first throttle set 33 is set to 100 He of lubricating cavity It rinses between chamber 43, makes sufficiently to contact and be lubricated with sliding bearing by the lubricating fluid of lubricating cavity 100 and flushing chamber 43, mention High lubricant effect.

With reference to Figure 11, the thrust disc 26 of the present embodiment includes pan portion 261 and portions 262, and the outer diameter of pan portion 261 is greater than portions The junction of 262 outer diameter, pan portion 261 and portions 262 offers balance annular groove 52, in liquid by the process of balance cylinder 47 In, making every effort to promote for liquid effects to balance annular groove 52 makes thrust disc hold 15 to the axial direction of pump shaft 12 and far from first sliding axle Direction it is separate, to further improve the ability of balanced residue axial force, the cross section of balance annular groove 52 is that half arc is recessed Slot makes thrust disc 26 when bearing axial compressive force, and the stress for reducing pan portion 261 and 262 junction of portions is concentrated, and improves pan portion 261 and portions 262 connect the local pressure limit.

Thrust disc 26 is equipped with upper rubbing surface 50, lower rubbing surface 51 and side rubbing surface 53, increases liquid and flows through thrust disc 26 When and thrust disc 26 between frictional force, and the resultant direction of the frictional force generated is axially away from first sliding axle to hold 15 sides To further improving the ability of the present embodiment balanced residue axial force；Lower rubbing surface 51 passes through balance ring with side rubbing surface 53 Slot 52 connects, and first sliding axle holds 15 and is equipped with radial lubrication groove 48 and axial lubrication 49, lower rubbing surface 51 and radial lubrication groove It combines to form balance cylinder 47 between 48, between side rubbing surface 53 and axial lubrication 49, radial lubrication groove 48 is to rotate clockwise Or the streamlined structure rotated counterclockwise, radial lubrication groove 48 is connected to axial lubrication 49 and rounding off, is flowing liquid Come into full contact with during dynamic with radial lubrication groove 48 and axial lubrication 49, improve lower rubbing surface 51 and radial lubrication groove 48 it Between, combine between side rubbing surface 53 and axial lubrication 49 formation balance cylinder 47 sealing effect.

Wherein first sliding axle holds 15 and is met material using high molecular polymers and be made, and first sliding axle is held and is provided on 15 Screw hole, screw hole are arranged in radial lubrication groove 48, and thrust disc 26 is made of metal material, wherein upper rubbing surface 50, under rub Wiping face 51 and side rubbing surface 53 are that spraying alloy material is formed.

With reference to Fig. 6, the first bearing seat 14 in the present embodiment close to liquid collecting cavity 45 is offered for collecting from gland seal assembly The liquid collecting room 46 of the liquid of middle leakage, liquid collecting room 46 are connected with drain pipe 10, and the medium that liquid collecting room 46 collects passes through drain pipe 10 It is flowed back in pond or the volume tank of long-shaft pump installation afterwards, resource is saved in recycling.

With reference to Fig. 1 and Fig. 7, specifically, gland seal assembly includes axle envelope seat 17, the first axle envelope 21 and first axle sealed cover 18, Axle envelope seat 17 is fixedly connected with first bearing seat 14, and O-ring 44, pump shaft 12 are equipped between axle envelope seat 17 and first bearing seat 14 It is arranged with the first axle sleeve 25, first axle big envelope is set to 25 outside of the first axle sleeve, and first axle sealed cover 18 is installed on the use of axle envelope seat 17 In fixing the first axle envelope 21, the first axle sleeve 25 is connected to 26 one end of thrust disc, and fixture nut 19 is threadedly connected to pump shaft 12 and is used for The first axle sleeve 25 and thrust disc 26 are fixed, O-ring 44 is equipped between fixture nut 19 and the first axle sleeve 25, axle envelope seat 17 passes through spiral shell Nail thrust ring 16 is installed, the second gap B can be formed on thrust ring 16 and thrust disc 26 between rubbing surface 50, make thrust button 16 with There is the space of buffering and axial movement between thrust disc 26, prevent dieback, thrust ring 16, axle envelope seat 17, the first axle envelope 21, the Liquid collecting cavity 45 is formed between one axle sleeve 25, liquid collecting cavity 45, balance cylinder 47, lubricating cavity 100, irrigation channel are sequentially communicated to form lubrication Channel is connected to liquid collecting cavity 45 into drain pipe 23, and thrust ring 16 offers radial lubrication groove 48 and screw hole, screw hole setting In radial lubrication groove 48, thrust ring 16 is connect by screw hole with 17 screw of axle envelope seat, and liquid collecting cavity 45 passes through radial lubrication groove 48 are connected to balance cylinder 47.

With reference to Fig. 3, the present embodiment further includes second bearing component, and second bearing component includes second bearing seat 7, third cunning Dynamic bearing 8 and third axle sleeve 11, third axle sleeve 11 are sheathed on pump shaft 12, and third sliding bearing 8 is installed on second bearing seat 7 and covers Set on 11 outside of third axle sleeve, the stability of pump shaft 12 in the process of running is further increased.

With reference to Fig. 4 and Fig. 9, wherein be equipped with thrust button 36 between guide vane 41 and impeller 37, thrust button 36 is sheathed on pump shaft 12, and there is the 4th clearance D between impeller 37 and guide vane 41, make long-shaft pump at work, impeller 37 and guide vane 41 have buffering Space, prevent dieback, thrust button 36 and second sliding axle hold formation third space C between 35, make thrust button 36 and the second cunning There is the space of buffering and axial movement between dynamic bearing 35, prevent dieback, thrust button 36 is equipped with radial flushed channel 54 and rinses Chamber 43 is connected to, and when flushing hole 31 flows into flushing liquor, flushing liquor is rinsed radial flushed channel 54 after flowing through flushing chamber 43, nothing When need to rinse, flushing hole 31 is equipped with plug 32.

When starting, control unit issues instruction, and the first solenoid valve 24 is opened, and extraneous bearing lubrication liquid or send medium with pumping Identical liquid, by flowing through liquid collecting cavity 45 into drain pipe 23, first sliding axle holds 15, lubricating cavity 100, irrigation channel and pump chamber 200 mix with the medium pumped, and after the bearing lubrication liquid stream angle of incidence reaches control unit preset time, control unit sending refers to It enables, starts long-shaft pump, when long axis pump operation, long-shaft pump pumps medium and flow generation lift from bottom to top, when pressure detector 13 When detecting that the pressure of pump chamber 200 reaches preset pressure, control unit issues instruction, and the first solenoid valve 24 is closed, extraneous bearing Lubricating fluid stops flow into, and long-shaft pump enters normal operation, and long-shaft pump pumps medium and holds 35, lubricating cavity 100 by second sliding axle It flows into after liquid collecting cavity 45 to flow out on a small quantity by gland seal assembly Deng from bottom to top and be collected by liquid collecting room 46, Jie that liquid collecting room 46 collects Matter flows back in pond or the volume tank of long-shaft pump installation by drain pipe 10, after long-shaft pump orderly closedown when starting next time, weight Multiple above-mentioned start-up course, is ensured that the sliding bearing of long-shaft pump is not in the generation of dry friction phenomenon；Work as long-shaft pump The operating condition axial force that changes (i.e. operating pressure fluctuation and occur when Ya not running) or pump when being unable to complete equipilibrium, The residual axial force of long-shaft pump is balanced by balance cylinder 47, i.e., thrust disc 26 plays the role of balanced residue axial force.

It further include water-inlet horn mouth 38 with reference to Fig. 4, water-inlet horn mouth 38 is coupled in guide vane 41 and between impeller 37 Gap is cooperatively formed, water-inlet horn mouth 38 is equipped with strainer 39, to biggish particle filtering in the liquid for entering long-shaft pump, prevents Damage the pump housing.

It further include pump holder 4 with reference to Fig. 2, drain pipe 10 is installed on pump holder 4, is equipped with electric machine support on pump holder 4 22, wherein one end of pump shaft 12 is equipped with water pump coupler 20 for connecting motor.

Embodiment 2:

With reference to Figure 13~Figure 16, the present embodiment the difference from embodiment 1 is that, further include water outlet horn mouth 42, be discharged loudspeaker Mouth 42 is fixedly connected with connecting tube 5 and impeller assembly respectively, and pump shaft 12 is arranged with the second throat bushing 66, water outlet horn mouth 42 with The second axle envelope 65 is equipped between second throat bushing 66, pump shaft 12 is equipped with the second axle envelope gland 64 and the second axle envelope 65 cooperates, out Water horn mouth 42 is equipped with lubrication fluid apertures 67, axle envelope room 68 and throttle orifice 69, and the second axle envelope gland 64 is equipped with fluid hole 70, lubricating fluid Hole 67 is connected to by fluid hole 70 with pump chamber 200, and lubrication fluid apertures 67 is connected with inlet tube 55, is provided with regulating valve on inlet tube 55 56, temperature measuring probe 57 and first pressure detection probe 58, regulating valve 56,57 and of temperature measuring probe are equipped with into drain pipe 23 First pressure detection probe 58 is electrically connected with control unit, and the pump shaft sleeve in the present embodiment is equipped with the second axle envelope 65, prevents The impurity that the medium pumped includes is easy to enter guide bearing as the high speed rotation of axis generates lift, makes guide bearing and pump shaft 12 Serious wear；In addition, preventing lubricating cavity to be connected to pump chamber by the second axle envelope 65, avoid when the lift that water pump generates is high, it is long Cooling pressure needed for axis pump is also high (cooling pressure is greater than the lift that long-shaft pump generates), at this moment will increase the axial direction of long-shaft pump Power, by reducing the pressure of impeller assembly pump chamber, to reduce needed for long-shaft pump cooling pressure, thus reduce thrust bearing or The damaged condition of motor.

Further, flushing hole 31 is connected with flushing pipe 62, and flushing pipe 62 is provided with second solenoid valve 60, third solenoid valve 61 and second pressure detection probe 59, second solenoid valve 60, third solenoid valve 61 and second pressure detection probe 59 with control Unit electrical connection.

When long-shaft pump starts starting, control unit issues instruction, and second solenoid valve 60 is opened, and extraneous flushing liquor is through flushing pipe 62, flushing hole 31, which flows into, rinses chamber 43, holds 35 to second sliding axle and is rinsed, removing is deposited on second sliding axle and holds 35 Silt or impurity；When washing time reaches control unit preset time, control unit issues instruction, and second solenoid valve 60 is closed, Regulating valve 56 is opened, and the first solenoid valve 24 is opened, and external bearing lubrication liquid flows into lubrication fluid apertures 67, fluid hole through inlet tube 55 70, lubricating cavity 100, first sliding axle are held by flowing out into drain pipe 23 after 15 and liquid collecting cavity 45, first pressure detection probe 58 When detecting that pressure reaches preset value, control unit issues instruction, starts long-shaft pump, the operation of long axis pump startup, control unit hair It instructing out, regulating valve 56 reduces flow and saves lubricating fluid resource, and long-shaft pump enters normal operation, after long-shaft pump orderly closedown, to When starting next time, above-mentioned start-up course casing is repeated, is ensured that the sliding bearing of long-shaft pump is not in dry friction phenomenon Occur；

Long-shaft pump is equipped with the second axle envelope 65 and the second throat bushing 66, guarantees the bearing lubrication liquid of long-shaft pump and pumps medium Mixing will not be contacted, long axis pump operation works, when temperature measuring probe 57 detects high temperature or low temperature preset value, control unit Instruction is issued, regulating valve 56 opens the flow for increasing bearing lubrication liquid gradually to reduce or improve sliding bearing, pump shaft 12 etc. Temperature, when temperature measuring probe 57, which detects, allows running temperature values, regulating valve 56 is opened, it is ensured that the normal fortune of long-shaft pump Row, when temperature measuring probe 57 detects the shutdown value of setting operation high temperature or low temperature, control unit issues instruction, long-shaft pump It is out of service；When realizing and ensuring that long-shaft pump pumps high temperature or cryogenic media, it is also able to achieve the high temperature or low temperature environment of long-shaft pump Middle use.

When the operating condition of long-shaft pump changes or the axial force of pump shaft 12 is unable to complete equipilibrium, second pressure detection When probe 59 detects highest setting pressure value, control unit issues instruction, and second solenoid valve 60 is opened, and long-shaft pump generates residual The pressure release after flushing chamber 43, flushing hole 31 and flushing pipe 62 of remaining axial force, carries out the balance of residual axial force, works as second pressure When detection probe 59 detects minimum setup pressure value, second solenoid valve 60 is closed, and long-shaft pump operates normally；

After long-shaft pump orderly closedown, control unit issues instruction, and third solenoid valve 61 is opened, and external flushing liquor is through flushing pipe 62 flow into flushing chamber 43, hold 35 to second sliding axle and are rinsed, removing is deposited in silt and impurity that second sliding axle holds 35； When washing time reaches control unit setting time value, control unit issues instruction, and third solenoid valve 61 is closed, and completes long-shaft pump Orderly closedown process.

To sum up, the utility model can pump cleaning, the room temperature medium containing suitable particles, can also pump high temperature, low temperature Medium；Before long axis pump startup, sliding bearing can be lubricated by being passed through lubricating fluid into lubricating cavity 100 into drain pipe 23, There is the phenomenon that dry friction between sliding bearing and pump shaft 12 after preventing long axis pump startup, effectively improve pump shaft 12 uses the longevity Life, and when long axis pump operation, when generating residual axial force, it is balanced by the balance cylinder 47 that 26 two sides of thrust disc are formed residual Remaining axial force is lubricated it is not necessary that thrust bearing and lubrication system is in addition arranged, and is realized while sliding bearing lubricating remaining The balance of axial force；The flow of lubricating fluid is adjusted by the switch of solenoid valve during lubrication for sliding bearing simultaneously The temperature of sliding bearing can be adjusted, realize cooling in the sliding bearing course of work；

In addition, the pump shaft 12 in the utility model can be made up of more coupling spindles the connection of shaft coupling component, shaft coupling component Include elastomer block 30, make more coupling spindle flexible connecteds, without bearing the entire rotor weight of pump, solution when sliding bearing works Determined long-shaft pump because under liquid length it is long due to caused by transport, installation difficulty and long-shaft pump using operation when vibration, noise Big problem improves the property safe and reliable to operation of pump, extends the service life of long-shaft pump；

It is formed between axle sleeve 34 finally, guide vane 41, second sliding axle hold 35 and second and rinses chamber 43, guide vane 41, which is equipped with, to be rinsed Hole 31, flushing hole 31 are connected to form irrigation channel with chamber 43 is rinsed, and before long-shaft pump booting or after use, can pass through flushing hole 31 Connection flushing device is rinsed the gap between guide vane 41 and pump shaft 12, prevents the granule foreign in pumping liquid from remaining in Between guide vane 41 and pump shaft 12, causes pump shaft 12 or guide vane 41 to generate abrasion when avoiding starting next time, improve guide vane 41 and pump The service life of axis 12.

In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand For limitations of the present invention.

In addition, various information are described in the utility model using term " first ", " second " etc., but these information are not answered It is limited to these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from the utility model In the case where range, " first " information can also be referred to as " second " information, and similar, " second " information can also be referred to as " first " information.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change It also should be regarded as the protection scope of the utility model into replacement.

Claims (10)

1. long-shaft pump under a kind of vertical solution, which is characterized in that including control unit, connecting tube, pump shaft and be installed on pump shaft Impeller assembly, pillar, first bearing component, gland seal assembly and fixture nut, shape between the pillar and gland seal assembly and pump shaft At lubricating cavity, the first end of the connecting tube is connect with impeller assembly, and the second end and first bearing component of the connecting tube connect Connect, form pump chamber between the connecting tube and pillar, the first bearing component include first bearing seat, first sliding axle hold and Thrust disc, the thrust disc, first sliding axle, which are held, is successively sheathed on pump shaft along pump shaft radial direction with first bearing seat, and described One sliding bearing is mounted on first bearing seat, the thrust disc and first sliding axle hold between form balance cylinder, it is described solid Determine nut to be threadedly coupled with pump shaft for fixing the thrust disc；

The impeller assembly includes impeller and guide vane, the pump shaft sleeve be equipped with second sliding axle hold with the second axle sleeve, described second Sliding bearing, which is arranged, to be fixed on the inside of guide vane, and second axle sleeve, which is sheathed on, to be held inside with second sliding axle and connect with pump shaft key It connects, the guide vane, second sliding axle, which hold to be formed between the second axle sleeve, rinses chamber, and the guide vane is equipped with flushing hole, the flushing Hole is connected to form irrigation channel with chamber is rinsed；

The gland seal assembly is connected with into drain pipe, described to be equipped with the first solenoid valve into drain pipe, first solenoid valve with Control unit electrical connection；

It is described to be connected to form lubrication channel with irrigation channel into drain pipe, lubricating cavity, balance cylinder.

2. long-shaft pump under vertical solution according to claim 1, which is characterized in that the pump chamber is equipped with pressure detector, institute Pressure detector is stated to be electrically connected with control unit.

3. long-shaft pump under vertical solution according to claim 1, which is characterized in that the pump shaft includes the first coupling spindle, the Two coupling spindles and shaft coupling component, the shaft coupling component include first shaft coupling, elastomer block and second shaft coupling, first shaft coupling Device is installed on the first coupling spindle, and second coupling spindle is installed on the second coupling spindle, the elastomer block respectively with the first coupling spindle With the second connection axis connection, there is the first gap between the first shaft coupling and second shaft coupling.

4. long-shaft pump under vertical solution according to claim 1, which is characterized in that the pump shaft sleeve is equipped with first throttle set, The first throttle set is set to lubricating cavity and rinses between chamber.

5. long-shaft pump under vertical solution according to claim 4, which is characterized in that further include water outlet horn mouth, the water outlet Horn mouth is fixedly connected with connecting tube and impeller assembly respectively, and the pump shaft sleeve is equipped with the second throat bushing, the water outlet horn mouth The second axle envelope is equipped between the second throat bushing, the pump shaft is equipped with the second axle envelope gland and the second axle envelope and cooperates, it is described out Water horn mouth is equipped with lubrication fluid apertures, axle envelope room and throttle orifice, and the second axle envelope gland is equipped with fluid hole, and the lubrication fluid apertures is logical It crosses the fluid hole to be connected to pump chamber, the lubrication fluid apertures is connected with inlet tube, and regulating valve is provided on the inlet tube, described Temperature measuring probe and first pressure detection probe, the regulating valve, temperature measuring probe and first pressure are equipped with into drain pipe Detection probe is electrically connected with control unit.

6. long-shaft pump under vertical solution according to claim 5, which is characterized in that the flushing hole is connected with flushing pipe, institute It states flushing pipe and is provided with second solenoid valve, second pressure detection probe and third solenoid valve, the second solenoid valve, second pressure Detection probe and third solenoid valve are electrically connected with control unit.

7. long-shaft pump under vertical solution according to claim 1, which is characterized in that the thrust disc be equipped with upper rubbing surface, under Rubbing surface and side rubbing surface, the first sliding axle, which is held, is equipped with radial lubrication groove and axial lubrication, the lower rubbing surface and diameter It combines to form the balance cylinder between lubrication groove, between side rubbing surface and axial lubrication.

8. long-shaft pump under vertical solution according to claim 1, which is characterized in that the first bearing seat is offered for receiving Collect the liquid collecting room of the liquid leaked from gland seal assembly, the liquid collecting room is connected with drain pipe.

9. long-shaft pump under vertical solution according to claim 7, which is characterized in that the gland seal assembly includes axle envelope seat, One axle envelope and first axle sealed cover, the axle envelope seat are fixedly connected with first bearing seat, and the pump shaft sleeve is equipped with the first axle sleeve, institute First axle big envelope is stated on the outside of the first axle sleeve, the first axle sealed cover is installed on axle envelope seat for fixing the first axle envelope, institute It states the first axle sleeve and is connected to thrust disc one end, the fixture nut is threadedly connected to pump shaft for fixing the first axle sleeve and thrust Disk, the axle envelope seat are equipped with thrust ring by screw, can be formed between second between rubbing surface on the thrust ring and thrust disc Gap.

10. long-shaft pump under vertical solution according to claim 1, which is characterized in that be equipped with only between the guide vane and impeller Push-plate, the thrust button are sheathed on pump shaft, the thrust button and second sliding axle hold between form third space, the impeller with There is the 4th gap between guide vane.