CN206801892U - A kind of marine self-suction vertical centrifugal pump - Google Patents

A kind of marine self-suction vertical centrifugal pump Download PDF

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Publication number
CN206801892U
CN206801892U CN201720372900.8U CN201720372900U CN206801892U CN 206801892 U CN206801892 U CN 206801892U CN 201720372900 U CN201720372900 U CN 201720372900U CN 206801892 U CN206801892 U CN 206801892U
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pump
self
main shaft
axle envelope
ring
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CN201720372900.8U
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赵云
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Giant Machinery (qingdao) Co Ltd
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Giant Machinery (qingdao) Co Ltd
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Abstract

A kind of marine self-suction vertical centrifugal pump, including pump case, pump cover, impeller, main shaft, electric machine support, Friction disc coupling, axle envelope and self-priming apparatus；Using main shaft direct connection structure, it is compact-sized, stability is good, the rotor part of pump uses indeterminate design, install advanced mechanical vacuum self-priming apparatus additional, self-priming apparatus automatic running is driven after realizing electric motor starting, the characteristics of self-priming apparatus is automatically stopped operation after pump starts completely, not only solves the self-starting problem of centrifugal pump, while reduce increase of the self-priming apparatus to energy consumption to the full extent.

Description

A kind of marine self-suction vertical centrifugal pump
Technical field
It the utility model is related to emergent fire extinguishing pump field, and in particular to a kind of marine self-suction vertical centrifugal pump.
Background technology
At present, in the design-build of ship, ballast, fire-fighting, the bilge, cooling pump are mostly using centrifugal pump of horizontal axis Or common vertical centrifugal pump design, this centrifugal pump of horizontal axis or the design of common vertical centrifugal pump exist during installation and use Following shortcoming：
1) centrifugal pump of horizontal axis is being installed because pump and motor can only use horizontal assembly method, and area occupied is bigger, This seems very insufficient in the extremely precious ship in space；
2) higher using centrifugal pump of horizontal axis installation difficulty, the concentricity adjustment of live pump and motor is relatively difficult, easily The bad problem of concentricity is produced, and concentricity is bad, first, producing vibrations in the process of running so as to cause pump or motor to be sent out The failures such as raw shaft coupling fracture；Secondly, higher noise is produced in running；
3) because centrifugal pump of horizontal axis suction capacity is slightly worse, power supply observable index is higher；
4) for common vertical centrifugal pump because impeller is below motor, maintenance is complicated, it is necessary to removes motor completely, or removes Whole rotatable parts
The content of the invention
In order to solve problem of the prior art, the utility model provides a kind of marine self-suction vertical centrifugal pump, uses Main shaft direct connection structure, compact-sized, stability is good, the rotor part of pump uses indeterminate design, the vacuum self-priming apparatus of installation It can not only realize that self-suction function can also be automatically stopped so as to reduce energy consumption after pump normal operation.
In order to solve the above technical problems, the utility model is achieved using following technical scheme：A kind of marine self-suction Vertical centrifugal pump, including pump case, pump cover, impeller, main shaft, electric machine support, Friction disc coupling, axle envelope and self-priming apparatus；Pump case Positioned at the bottom of whole device, miscellaneous part is all mounted thereto, and suction inlet and discharge opening are set on pump case；Pump cover is arranged on The top centre position of pump case, O-ring sealing is provided between pump case；Main shaft lower end passes through pump cover, passes through flat key and wheel hub cover It is connected with impeller, wheel hub cover is located at the shaft end of main shaft, is fastened by bolts on main shaft, and main shaft upper end and motor shaft pass through Dismountable Friction disc coupling connection；Impeller is arranged between pump case and pump cover, provided with balance pipe, impeller and pump case and pump Sealing ring is installed respectively between lid；The axle envelope of main shaft is arranged on above pump cover, can select packing seal or mechanical seal；Friction Disk shaft coupling is located at the top of main shaft, including pump shaft coupling and motor coupler, and pump shaft coupling uses unitary design with main shaft, Motor coupler is fixedly connected with a motor shaft, and together with pump shaft coupling is bolted to connection with motor coupler, centre is provided with only Rotating ring；Electric machine support lower end is arranged on pump cover, is attached fixation with pump cover by bolt and briquetting, motor is arranged on motor Cradle top；Self-priming apparatus is arranged in the mounting seat of electric machine support side.
Furtherly, when axle envelope uses packing seal, axle envelope includes airtight and watertight padding and sealing gland, and airtight and watertight padding is arranged on Through on the main shaft of pump cover, in the top of airtight and watertight padding, installation sealing gland is compressed.
Furtherly, when axle envelope uses mechanical seal, mechanical seal include sealing gland, spring catch, O-ring, retainer ring, C-type back-up ring and drip ring, spring catch is pounded in the pin-and-hole on sealing gland, it is stretched out 3mm at gland endoporus, outside pin-and-hole Side applies fluid sealant, and O-ring and retainer ring are arranged in sealing gland, and drip ring and mounted sealing gland are sequentially arranged at master On axle, sealing gland is fixed with retainer ring, c-type back-up ring.
Furtherly, when axle envelope uses mechanical seal, through hole installation axle envelope cooling device, axle envelope are provided with pump cover side The cooling device other end connects the three-way valve of pump case suction inlet；The pump cover of axle envelope opposite side opens cross through hole, and outside is blocked up with plug Firmly, a vertical through hole is opened on the downside of cross through hole, pump case is connected, discharges unnecessary coolant.
Furtherly, installation sealing ring at the top of the axle envelope, prevents axle envelope coolant from overflowing.
Furtherly, the self-priming apparatus includes vavuum pump, frictional disk, knockout drum and filter；The vavuum pump right-hand member It is fixedly connected with frictional disk, in the mounting seat on the left of electric machine support, is bolted；The frictional disk and frictional disk Frictional disk on shaft coupling is in close contact；The vacuum pump outlet is connected with knockout drum, the three-dimensional of entrance and pump case suction inlet Valve is connected, and filter, check valve and gate valve are set gradually between entrance and three-way valve；The hydraulic cylinder right-hand member is arranged on installation The bottom of seat, left end are connected with pump case discharge opening；The mounting seat is in lever construction, and centre is fixed, can move left and right up and down.
In use, motor operates after being powered, due to having air in pump case, so startup is relatively difficult, frictional disk shaft coupling The frictional disk effect of device drives vavuum pump operating, the air in pump case is suctioned out by the three-way valve of pump case suction inlet, from knockout drum Air to be discharged, reduces air pressure in pump case, water is gradually drawn into pump case, and subsequent pump normally starts, after pump normally starts, with The connected hydraulic cylinder of pump case discharge opening starts hydraulic stem ejection, causes vavuum pump to be moved rearwards, the frictional disk of self-priming apparatus leaves Friction disc coupling, vavuum pump are stopped.Friction disc coupling continues to drive main shaft and wheel rotation, liquid is inhaled from pump case After entrance enters, excluded from discharge opening, pump case inlet and outlet are arranged on a horizontal line.
Compared with prior art, the advantages of the utility model and good effect is：
1) Assembling, easy to maintenance
With respect to centrifugal pump of horizontal axis assembling mode, space can be saved installing, also allows for loading and unloading.Particularly group at the scene During dress, because ship inner space is extremely limited, maintenance of breaking down is can not to move into take out of at all.Pass through shaft coupling assembling side Formula thoroughly solves the problems, such as these Assemblings and inconvenient maintenance.
2) solves the balance in pump body
Double-volute structure is used in pump housing delivery chamber, rotor radial power is automatically derived balance, so that pump is complete Mechanical breakdown will not also be produced by being run under off-design operating mode.Impeller uses double seal ring and balanced hole structure, makes armature spindle It is balanced to power.
3) cavitation is effectively avoided
Advanced hydraulic engineering design and balanced hole structure so that impeller has excellent cavitation performance, and pump housing suction room uses Symmetric helix structure, more they tend to uniformly, further improve the cavitation performance of pump when flowing liquid into impeller, so that pump is inclined Operation can be effectively prevented from cavitation in the case of relatively severe from design conditions and condition for import.
4) energy resource consumption reduces
Install advanced mechanical vacuum self-priming apparatus additional, realize and self-priming apparatus automatic running is driven after electric motor starting, pump is complete The characteristics of self-priming apparatus is automatically stopped operation after full startup, the self-starting problem of centrifugal pump is not only solved, while at utmost On reduce increase of the self-priming apparatus to energy consumption.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is the structural representation of the utility model self-priming apparatus；
Wherein, pump case 001, pump cover 002, impeller 003, mounting seat 004, axle envelope cooling device 005, sealing ring 020, sealing Ring 021, O-ring 050, main shaft 101, flat key 103, wheel hub cover 130, bolt 131, bolt 158, locating snap ring 159, frictional disk shaft coupling Device 301, bolt 305, electric machine support 403, axle envelope 520, sealing ring 530, filter 601, check valve 602, gate valve 603, point From tank 604, vavuum pump 605, frictional disk 606, hydraulic cylinder 607, pump case suction inlet three-way valve 608, pump case discharge opening 609.
Embodiment
Further illustrate with reference to the accompanying drawings and examples.
A kind of marine self-suction vertical centrifugal pump of the utility model, including pump case 001, pump cover 002, impeller 003, main shaft 101, electric machine support 403, Friction disc coupling 301, axle envelope 520 and self-priming apparatus；Pump case 001 is located at the most lower of whole device End, miscellaneous part is all mounted thereto, and suction inlet and discharge opening are set on pump case 001；Pump cover 002 is arranged on the upper of pump case 001 Sealed between square centre position, and pump case 001 provided with O-ring 050；The lower end of main shaft 101 passes through pump cover 002, passes through flat key 103 It is connected with wheel hub cover 130 and impeller 003, wheel hub cover 130 is located at the shaft end of main shaft 101, and main shaft is fastened on by bolt 131 On 101, the upper end of main shaft 101 and motor shaft are coupled by dismountable Friction disc coupling 301；Impeller 003 is arranged on pump case Between 001 and pump cover 002, installed respectively provided with balance pipe, between impeller 003 and pump case 001 and pump cover 002 sealing ring 021, 020；The axle envelope 520 of main shaft 101 is arranged on the top of pump cover 002, can select packing seal or mechanical seal；Friction disc coupling 301 are located at the top of main shaft 101, including pump shaft coupling and motor coupler, and pump shaft coupling is set with main shaft 101 using integral type Meter, motor coupler are fixedly connected with a motor shaft, and pump shaft coupling is fixed together with motor coupler by bolt 158, middle Provided with locating snap ring 159；The lower end of electric machine support 403 is arranged on pump cover 002, is attached by bolt and briquetting with pump cover 002 Fixed, motor is arranged on the top of electric machine support 403；Self-priming apparatus is arranged in the mounting seat 004 of electric machine support side.
Furtherly, when axle envelope 520 is using packing seal, axle envelope 520 includes airtight and watertight padding and sealing gland, airtight and watertight padding On the main shaft 101 through pump cover 002, in the top of airtight and watertight padding, installation sealing gland is compressed.
Furtherly, when axle envelope 520 is using mechanical seal, mechanical seal includes sealing gland, spring catch, O-ring, fixation Ring, c-type back-up ring and drip ring, spring catch are pounded in the pin-and-hole on sealing gland, it is stretched out 3mm at gland endoporus, pin Fluid sealant is applied on the outside of hole, O-ring and retainer ring are arranged in sealing gland, and drip ring and mounted sealing gland are installed successively On main shaft 101, sealing gland is fixed with retainer ring, c-type back-up ring.
Furtherly, when axle envelope 520 is using mechanical seal, through hole installation axle envelope cooling dress is provided with the side of pump cover 002 05 is set to 0, the other end of axle envelope cooling device 005 connection pump case suction inlet three-way valve 608；The pump cover 002 of the opposite side of axle envelope 520 opens horizontal stroke To through hole, outside is blocked with plug, and a vertical through hole is opened on the downside of cross through hole, is connected pump case 001, is discharged unnecessary cooling Liquid.
Furtherly, the top of the axle envelope 520 installation sealing ring 530, prevents the coolant of axle envelope 520 from overflowing.
Furtherly, the self-priming apparatus includes vavuum pump 605, frictional disk 606, knockout drum 604 and filter 601；Institute State the right-hand member of vavuum pump 605 to be fixedly connected with frictional disk 606, in the mounting seat 004 in the left side of electric machine support 403, pass through spiral shell Bolt is fixed；Frictional disk on the frictional disk 606 and Friction disc coupling 301 is in close contact；The vavuum pump 605 outlet with Knockout drum 604 is connected, and entrance is connected with pump case suction inlet three-way valve 608, is set gradually between entrance and three-way valve 608 Filter 601, check valve 602 and gate valve 603；The right-hand member of hydraulic cylinder 607 is arranged on the bottom of mounting seat 004, left end and pump case Discharge opening 609 connects；The mounting seat 004 is in lever construction, and centre is fixed, can move left and right up and down.
In use, motor operates after being powered, due to having air in pump case 001, so startup is relatively difficult, frictional disk connection The frictional disk effect of axle device 301 drives vavuum pump 605 to operate, and the air in pump case 001 is inhaled by pump case suction inlet three-way valve 608 Go out, discharge air from knockout drum 604, reduce air pressure in pump case 001, water is gradually drawn into pump case 001, and subsequent pump is normal Start, after pump normally starts, the hydraulic cylinder 607 being connected with the discharge opening of pump case 001 starts hydraulic stem ejection, causes vavuum pump 605 It is moved rearwards, the frictional disk 606 of self-priming apparatus leaves Friction disc coupling 301, and vavuum pump 605 is stopped.Frictional disk shaft coupling Device 301 continues to drive main shaft 101 and impeller 003 to rotate, and liquid is excluded after the entrance of the suction inlet of pump case 001 from discharge opening, The inlet and outlet of pump case 001 are arranged on a horizontal line.

Claims (6)

  1. A kind of 1. marine self-suction vertical centrifugal pump, it is characterised in that：Including pump case, pump cover, impeller, main shaft, electric machine support, rub Wipe disk shaft coupling, axle envelope and self-priming apparatus；
    The pump case is located at the bottom of whole device, and miscellaneous part is all mounted thereto, and suction inlet and discharge are set on pump case Mouthful；
    The pump cover is arranged on the top centre position of pump case, and O-ring is provided between pump case and is sealed；
    The main shaft lower end passes through pump cover, is connected by flat key and wheel hub cover with impeller, and wheel hub cover is located at the shaft end of main shaft, It is fastened by bolts on main shaft, main shaft upper end and motor shaft are coupled by dismountable Friction disc coupling；
    The impeller is arranged between pump case and pump cover, provided with balance pipe, is installed respectively between impeller and pump case and pump cover close Seal ring；
    The axle envelope of the main shaft is arranged on above pump cover, can select packing seal or mechanical seal；
    The Friction disc coupling is located at the top of main shaft, including pump shaft coupling and motor coupler, pump shaft coupling are adopted with main shaft With unitary design, motor coupler is fixedly connected with a motor shaft, and pump shaft coupling is bolted to connection one with motor coupler Rise, centre is provided with locating snap ring；
    The electric machine support lower end is arranged on pump cover, is attached fixation with pump cover by bolt and briquetting, motor is arranged on At the top of electric machine support；Self-priming apparatus is arranged in the mounting seat of electric machine support side.
  2. A kind of 2. marine self-suction vertical centrifugal pump according to claim 1, it is characterised in that：The axle envelope is close using filler Feng Shi, axle envelope include airtight and watertight padding and sealing gland, and airtight and watertight padding is arranged on through on the main shaft of pump cover, in the upper of airtight and watertight padding Side's installation sealing gland is compressed.
  3. A kind of 3. marine self-suction vertical centrifugal pump according to claim 1, it is characterised in that：The axle envelope is close using machinery Feng Shi, mechanical seal include sealing gland, spring catch, O-ring, retainer ring, c-type back-up ring and drip ring, spring catch are pounded into close In pin-and-hole on sealed cover, it is stretched out 3mm at gland endoporus, apply fluid sealant on the outside of pin-and-hole, O-ring and retainer ring are arranged on In sealing gland, drip ring and mounted sealing gland are sequentially arranged on main shaft, and sealing is pressed with retainer ring, c-type back-up ring Lid is fixed.
  4. A kind of 4. marine self-suction vertical centrifugal pump according to claim 3, it is characterised in that：The axle envelope is close using machinery Feng Shi, through hole installation axle envelope cooling device is provided with pump cover side, axle envelope cooling device other end connection pump case suction inlet Three-way valve；The pump cover of axle envelope opposite side opens cross through hole, and outside is blocked with plug, and it is vertical logical that one is opened on the downside of cross through hole Hole, pump case is connected, discharges unnecessary coolant.
  5. A kind of 5. marine self-suction vertical centrifugal pump according to claim 4, it is characterised in that：Installation is close at the top of the axle envelope Seal, prevent axle envelope coolant from overflowing.
  6. A kind of 6. marine self-suction vertical centrifugal pump according to claim 1, it is characterised in that：The self-priming apparatus includes true Empty pump, frictional disk, knockout drum and filter；
    The vavuum pump right-hand member is fixedly connected with frictional disk, in the mounting seat on the left of electric machine support, is bolted；
    Frictional disk on the frictional disk and Friction disc coupling is in close contact；
    The vacuum pump outlet is connected with knockout drum, and entrance is connected with the three-way valve of pump case suction inlet, entrance and three-way valve Between set gradually filter, check valve and gate valve；
    The hydraulic cylinder right-hand member is arranged on the bottom of mounting seat, and left end is connected with pump case discharge opening；The mounting seat is in lever knot Structure, centre is fixed, can move left and right up and down.
CN201720372900.8U 2017-04-11 2017-04-11 A kind of marine self-suction vertical centrifugal pump Active CN206801892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720372900.8U CN206801892U (en) 2017-04-11 2017-04-11 A kind of marine self-suction vertical centrifugal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720372900.8U CN206801892U (en) 2017-04-11 2017-04-11 A kind of marine self-suction vertical centrifugal pump

Publications (1)

Publication Number Publication Date
CN206801892U true CN206801892U (en) 2017-12-26

Family

ID=60731749

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720372900.8U Active CN206801892U (en) 2017-04-11 2017-04-11 A kind of marine self-suction vertical centrifugal pump

Country Status (1)

Country Link
CN (1) CN206801892U (en)

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