CN106286314B - Latent liquid ballast pump - Google Patents

Latent liquid ballast pump Download PDF

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Publication number
CN106286314B
CN106286314B CN201610658271.5A CN201610658271A CN106286314B CN 106286314 B CN106286314 B CN 106286314B CN 201610658271 A CN201610658271 A CN 201610658271A CN 106286314 B CN106286314 B CN 106286314B
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China
Prior art keywords
pipe
motor
pump
oil
liquid ballast
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CN201610658271.5A
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Chinese (zh)
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CN106286314A (en
Inventor
黄书才
白俊江
赵雷刚
穆春玉
杨勤
沈飞
罗力
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Wuhan Marine Machinery Plant Co Ltd
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Wuhan Marine Machinery Plant Co Ltd
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Priority to CN201610658271.5A priority Critical patent/CN106286314B/en
Publication of CN106286314A publication Critical patent/CN106286314A/en
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Publication of CN106286314B publication Critical patent/CN106286314B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/04Units comprising pumps and their driving means the pump being fluid driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077Safety measures

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a kind of latent liquid ballast pumps, belong to ballast pump technical field.The both sides of the pump case of the latent liquid ballast pump are respectively arranged with inlet and outlet, and motor shell and blower inlet casing are fixed in pump case;The bottom end of motor shell is provided with motor opening, hydraulic motor output terminal in motor shell is connected with pump shaft, and pump shaft is open across motor, sealed set between pump shaft and motor opening, pump shaft passes through fixing sleeve on the position of motor opening to be arranged in blower inlet casing equipped with impeller, impeller;Liquid medium is filled with inside motor shell, the monitoring device of latent liquid ballast pump includes monitoring pipe and the observation cavity being placed in outside pump case, and monitoring pipe both ends connect respectively with motor shell and observation cavity.The present invention can quickly determine seal failure position, and the convenient repair to liquid ballast pump of diving enables latent liquid ballast pump normal operation as early as possible.

Description

Latent liquid ballast pump
Technical field
The invention belongs to ballast pump technical field, more particularly to a kind of latent liquid ballast pump.
Background technology
Latent liquid ballast pump is that most important, most critical core equipment, major function are to complete water in marine ballasting system The injection of body and discharge work, to reach following purposes:Adjust ship drinking water and hull vertical, horizontal it is steady and safe steady Heart height;Reduce the deformation of hull, in order to avoid causing excessive bending moment and shearing moment, reduce ship hull vibration;Improve empty cabin to fit Boat property.
In the prior art, liquid ballast pump of diving generally includes pump case and the motor shell being co-axially located in pump case, in motor Hydraulic motor is provided in housing, the output terminal of hydraulic motor is connect with pump shaft, is provided with what is conveyed for water body on pump shaft Impeller, in order to ensure the normal operation of latent liquid ballast pump, it will usually the sealing device of similar sealing ring of setting etc make pump shaft with Sealing is kept between motor shell.
In the implementation of the present invention, inventor has found that the prior art has at least the following problems:
Under the operating mode of the normal operation of latent liquid ballast pump, pump shaft need to keep high speed rotary motion, in rotary course, pump Sealing between axis and motor shell can be worn and even damage, and water body is caused to leak in motor shell or hydraulic motor In water body on the outside of interior hydraulic fluid leak to motor shell, latent liquid ballast pump is caused to be unable to operate normally.But latent liquid ballast pump Sealing element setting it is more, it is impossible to determine leak site within a short period of time, timely and effectively latent liquid ballast pump can not be carried out Repair.
Invention content
In order to solve latent liquid ballast pump to be caused to be unable to operate normally because sealing device is worn or is damaged in the prior art, and The problem of can not timely and effectively being repaired to latent liquid ballast pump, an embodiment of the present invention provides a kind of latent liquid ballast pumps.Institute It is as follows to state technical solution:
A kind of latent liquid ballast pump, the latent liquid ballast pump include pump case, motor shell and blower inlet casing, are set on the pump case There are inlet and outlet, the motor shell and the blower inlet casing are fixed in the pump case;The motor shell Bottom is provided with motor opening, is provided with hydraulic motor in the motor shell, the output terminal of the hydraulic motor is connected with pump Axis, the pump shaft are open across the motor, and sealed set between the pump shaft and motor opening, the pump shaft passes through institute It states fixing sleeve on the position of motor opening and impeller is housed, the impeller is arranged in the blower inlet casing, inside the motor shell It is filled with liquid medium;The latent liquid ballast pump further includes monitoring device, and the monitoring device includes monitoring pipe and observation cavity, The both ends of the monitoring pipe connect respectively with the motor shell and the observation cavity, and the observation cavity is placed in the pump case It is external.
Further, the latent liquid ballast pump further includes oil inlet pipe and oil return pipe, and one end of the oil inlet pipe is arranged on institute State the inside of oil return pipe, the middle part of the oil inlet pipe passes through the side wall of the oil return pipe, the other end of the oil inlet pipe with it is described Hydraulic motor connects, and the oil inlet pipe and the oil return pipe connect with the hydraulic motor and form a circuit.By into Oil pipe and oil return pipe can provide hydraulic oil to hydraulic motor, hydraulic motor to be driven to operate, in addition, oil inlet pipe is arranged on back In oil pipe, it is possible to reduce the trepanning on pump case and motor shell, and the use of sealing element is reduced, ensure sealing effect.
Further, the oil inlet pipe is fixedly connected on by multiple connecting ribs in the oil return pipe, the multiple Connecting rib is along the circumferentially equiangularly spaced setting of the oil inlet pipe.The setting of multiple connecting ribs can not only fix oil inlet pipe, It can not also hinder the running of hydraulic power oil in oil return pipe.
Further, the top of the motor shell is equipped with cover board, and connecting hole, the oil return pipe are provided on the cover board In the connecting hole;The oil return pipe is including the upper oil pipe outside the pump case and inside the motor shell Lower oil pipe, one end of the lower oil pipe connect with the hydraulic motor, and the other end of the lower oil pipe is provided with connection otic placode, The connection otic placode is fixed on the cover board, and the upper oil pipe is mounted in the connection otic placode.
Further, the connection otic placode top surface is provided with grip block, and the connection otic placode passes through the clamping board It is connected on the cover board, oil return hole is provided on the grip block, the upper oil pipe is fixed on the grip block, described Lower oil pipe is connected with the upper oil pipe by the oil return hole.
Preferably, the monitoring pipe sleeve is located at outside the upper oil pipe, and the connection otic placode and the grip block are equipped with Connect the conveying flow passage inside the monitoring pipe and the motor shell.Monitoring pipe is arranged on the outside of upper oil pipe, it is possible to reduce Trepanning on pump case and motor shell, and the use of sealing element is reduced, ensure sealing effect.
Further, the monitoring pipe is connect with the oil return pipe by more connecting rods, and the more connecting rods are along institute State the circumferentially equiangularly spaced setting of oil return pipe.The setting of more connecting rods can not only fix oil return pipe, can not also hinder to supervise Liquid medium flow in test tube.
Further, axle sleeve and sealing shroud are provided between the pump shaft and motor opening, the axle sleeve is set in On the pump shaft, the sealing shroud is fixed at the motor opening inner wall, and the top of the sealing shroud is overlapped on the liquid The bottom end of pressure motor, sealed set between the axle sleeve and the sealing shroud.
Further, transition axle sleeve is provided on part of the pump shaft between the motor shell and the impeller, To prevent pump shaft from being corroded by water body, increase the service life of pump shaft.
Preferably, the latent liquid ballast pump further includes self-priming apparatus, and the self-priming apparatus includes vacuum tube, level monitoring pipe And ball-cock assembly, the vacuum tube are connected to the vacuum port of pump case axial direction top setting, the level monitoring pipe with it is described true Blank pipe is arranged in parallel, and the level monitoring pipe is connected with the liquid outlet set on the pump case side wall, and the ball-cock assembly is arranged on In the level monitoring pipe.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is:The embodiment of the present invention is due in motor shell In be provided with hydraulic motor, the output terminal of hydraulic motor is connected with pump shaft, and after hydraulic motor starts, pump shaft can rotate therewith, position It can also be rotated therewith in the impeller on pump shaft, water inlet of the water body through pump case can be made to flow to the water outlet of pump case, complete water body Injection and discharge work;In addition, sealed set between pump shaft and the motor opening of the embodiment of the present invention, is sealing effective situation Under, can anti-water-stop body enter in motor shell;The embodiment of the present invention is filled with liquid medium inside motor shell, and monitors Observation cavity of the monitoring pipe both ends respectively with motor shell and outside pump case in device connects, when observing the liquid in cavity Potential drop is low, then shows that the liquid medium in motor shell is leaked into water body;If observation cavity in liquid level raising, show into The water body on the outside of hydraulic oil or motor shell in hydraulic motor is leaked into motor shell, passes through liquid in analysis and observation cavity Ingredient can finally determine seal failure position, can thus determine to want maintenance position within the shortest time, it is convenient to latent The repair of liquid ballast pump enables latent liquid ballast pump normal operation as early as possible.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings Attached drawing.
Fig. 1 is the structure diagram of immersed pump provided in an embodiment of the present invention;
Fig. 2 is enlarged diagram at A in Fig. 1.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention Formula is described in further detail.
An embodiment of the present invention provides a kind of immersed pumps.Fig. 1 is the structural representation of immersed pump provided in an embodiment of the present invention Figure, with reference to figure 1, which includes pump case 1, motor shell 2 and blower inlet casing 22, and pump case 1 is provided with water inlet 1.1 and goes out The mouth of a river 1.2, motor shell 2 and blower inlet casing 22 are fixed in pump case 1;The bottom of motor shell 2 is provided with motor opening 2.1, hydraulic motor 3 is provided in motor shell 2, the output terminal of hydraulic motor 3 is connected with pump shaft 4, and pump shaft 4 is open across motor 2.1, sealed set between pump shaft 4 and motor opening 2.1, pump shaft 4 passes through fixing sleeve on the position of motor opening 2.1 that impeller is housed 5, impeller 5 is arranged in blower inlet casing 22;The embodiment of the present invention is characterized in that:Liquid is filled with inside motor shell 2 Medium;And the latent liquid ballast pump further includes monitoring device, which includes monitoring pipe 8 and observation cavity 9, monitoring pipe 8 Both ends connect respectively with motor shell 2 and observation cavity 9, and observation cavity 9 is placed in outside pump case 1.
The embodiment of the present invention is connected with due to being provided with hydraulic motor 3, the output terminal of hydraulic motor 3 in motor shell 2 Pump shaft 4, after hydraulic motor 3 starts, pump shaft 4 can rotate therewith, and the impeller 5 on pump shaft 4 can also rotate therewith, and can make water body Water inlet 1.1 through pump case 1 flows to the water outlet 1.2 of pump case 1, completes the injection of water body and discharge work;In addition, the present invention is real Apply example pump shaft 4 and motor opening 2.1 between sealed set, sealing effectively in the case of, can anti-water-stop body enter motor In housing 2;The embodiment of the present invention is filled with liquid medium, and 8 both ends of monitoring pipe in monitoring device point inside motor shell 2 Observation cavity 9 not with motor shell 2 and outside pump case 1 connects, and when observing the reduction of the liquid level in cavity 9, then shows horse It is leaked into water body up to the liquid medium in housing 2;If observing the liquid level raising in cavity 9, show into hydraulic motor 3 The water body in 2 outside of hydraulic oil or motor shell is leaked into motor shell 2, and the ingredient by liquid in analysis and observation cavity 9 is It can finally determine seal failure position, can thus determine to want maintenance position within the shortest time, it is convenient to liquid ballast pump of diving Repair, enable latent liquid ballast pump normal operation as early as possible.
Liquid medium in the motor shell 2 of the embodiment of the present invention can be ethylene glycol, and density is in water body and hydraulic oil Between, if the liquid level raising in observation cavity 9, the density of liquid component in cavity 9 is observed higher than liquid medium under normal circumstances Density, then illustrate that the water body in the outside of motor shell 2 is leaked in motor shell 2;The density for observing liquid component in cavity 9 is low In the density of liquid medium under normal circumstances, then illustrate in the hydraulic fluid leak to motor shell 2 in hydraulic motor 3.
The pump case 1 of the embodiment of the present invention can be in the form of a column, and water inlet 1.1 and water outlet 1.2 are separately positioned on pump case 1 radially Both sides.And motor shell 2, blower inlet casing 22, pump shaft 4 and pump case 1 can be coaxially disposed.
The latent liquid ballast pump of the embodiment of the present invention further includes oil inlet pipe 6 and oil return pipe 7, and oil inlet pipe 6 and oil return pipe 7 are and liquid Pressure motor 3 connects and forms a circuit.Oil inlet pipe 6 and oil return pipe 7 are to provide the defeated of hydraulic oil for the operating of hydraulic motor 3 Channel is sent, hydraulic oil can be provided to hydraulic motor 3 by oil inlet pipe 6 and oil return pipe 7, to drive hydraulic motor.
Fig. 2 is enlarged diagram at A in Fig. 1, with reference to Fig. 2, oil inlet pipe 6, oil return pipe 7 and the monitoring pipe of the embodiment of the present invention 8 set-up mode is:
The mounting means of oil return pipe 7:
The top of the motor shell 2 of the embodiment of the present invention is equipped with cover board 23, and connecting hole 1.3, oil return are provided on cover board 23 Pipe 7 is located in connecting hole 1.3;The oil return pipe 7 of the embodiment of the present invention includes the upper oil pipe 7.1 being located at outside pump case 1 and is located at Lower oil pipe 7.2 inside motor shell 2, one end of lower oil pipe 7.2 are connect with hydraulic motor 3, the other end setting of lower oil pipe 7.2 There is connection otic placode 7.3, connection otic placode 7.3 is fixed on cover board 23, and upper oil pipe 7.1 is mounted in connection otic placode 7.3.
The embodiment of the present invention sets grip block 10 in 7.3 top surface of connection otic placode, and connection otic placode 7.3 is clamped by grip block 10 On cover board 23, oil return hole 10.1 is provided on grip block 10, upper oil pipe 7.1 is fixed on grip block 10, lower oil pipe 7.2 It is connected with upper oil pipe 7.1 by oil return hole 10.1.In this way, upper oil pipe 7.1, oil return hole 10.1 and lower oil pipe 7.2 collectively form The oil return pipe 7 of one perforation.
The grip block 10 of the embodiment of the present invention can be detachably connected by screw 24 and connection otic placode 7.3, grip block 10 Can be rounded with connection otic placode, and the outer diameter of grip block 10 can be more than the outer diameter of connection otic placode 7.3, it so not only can be with Otic placode 7.3 is fixedly connected with, is also prevented from water body between the connecting hole 1.3 on connection otic placode 7.3 and the axial top of pump case 1 It is leaked in gap.
10.1 inner wall of oil return hole of the embodiment of the present invention can be set there are one seam allowance, and upper oil pipe 7.1 can be plugged in this On seam allowance.
The mounting means of oil inlet pipe 6:
The oil inlet pipe 6 of the embodiment of the present invention can include the first oil pipe 6.1 and the second oil pipe 6.2, and the first oil pipe 6.1 is set Inside oil return pipe 7,6.2 one end of the second oil pipe is connected with the first oil pipe 6.1, and the second oil pipe 6.2 passes through 7 inner wall of oil return pipe, the Two oil pipes, 6.2 other end is connect with hydraulic motor 3.
First oil pipe 6.1 of the embodiment of the present invention is fixedly connected by multiple connecting ribs 6.3 with 7 inner wall of oil return pipe, more A connecting rib 6.3 is along the circumferential equiangularly spaced setting of the first oil pipe 6.1.The setting of multiple connecting ribs 6.3 can not only consolidate Fixed first oil pipe 6.1, can not also hinder the running of hydraulic power oil in oil return pipe 7.
Specific in the embodiment of the present invention, since grip block 10 has the positioning in radial and axial direction, have centainly Support strength, therefore, multiple connecting ribs 6.3 can be fixed on the inner wall of the second oil return hole 10.1 of grip block 10.
First oil pipe 6.1 of the embodiment of the present invention can be connected with the second oil pipe 6.2 by oil connection 6.4.
Second oil pipe 6.2 of the embodiment of the present invention can be divided into inner tube 6.21 and outer tube 6.22 again, and inner tube 6.21 is located at back Inside oil pipe 7, outer tube 6.22 is located at 7 outside of oil return pipe, and connection hydraulic fluid port 7.4, inner tube can be provided in lower 7.2 side wall of oil pipe 6.21 both ends connect and pass through between hydraulic fluid port 7.4 and hydraulic motor 3 respectively with oil connection 6.4 and connecting hydraulic fluid port 7.4 and connecting Outer tube 6.22 connects, to realize the connection between oil inlet pipe 6 and hydraulic motor 3.
Adapter 3.1 can be provided on the hydraulic motor 3 of the embodiment of the present invention, lower oil pipe 7.2 and outer tube 6.22 can be with It is plugged on adapter 3.1, to realize the connection of oil return pipe 7 and oil inlet pipe 6 and hydraulic motor 3.Monitor the mounting means of pipe 8:
The monitoring pipe 8 of the embodiment of the present invention can be set in outside oil return pipe 7, and monitoring pipe 8 can be by more with oil return pipe 7 Root connecting rod 8.1 connects, and more connecting rods 8.1 are along the circumferential equiangularly spaced setting of oil return pipe 8, the setting of more connecting rods 8.1 Oil return pipe 7 can be not only fixed, can not also hinder to monitor the liquid medium flow in pipe 8.
The monitoring pipe 8 of the embodiment of the present invention can be fixed on 10 top surface of grip block, grip block 10 and connection otic placode 7.3 are provided with conveying flow passage 8.2 along motor shell 2 is axial, monitor and are connected inside pipe 8 and motor shell 2 by conveying flow passage 8.2 It is logical.
Above-mentioned is oil inlet pipe 6, oil return pipe 7 and the mounting means for monitoring pipe 8, naturally it is also possible to other mounting means are adopted, Such as oil inlet pipe 6 and oil return pipe 7 can be an integral structure, and directly sequentially pass through pump case 1 and motor shell 2, with hydraulic motor 3 Adapter 3.1 connect, the embodiment of the present invention is not limited herein.
In the embodiment of the present invention, oil inlet pipe 6, oil return pipe 7 and monitoring pipe 8 can be coaxial and the radial direction along pump case 1 is from interior It sets gradually outward, it is possible to reduce the trepanning on pump case 1 and motor shell 2, and the use of sealing element is reduced, ensure sealing effect Fruit.
Transparent material may be used in the observation cavity 9 of the embodiment of the present invention, and scale can be labeled on its side wall, with Facilitate observation.
With reference to Fig. 1, it can be provided with bearing block 3.2 on the hydraulic motor 3 of the embodiment of the present invention, it can be in bearing block 3.2 Roller bearing 3.3 and ball bearing 3.4 are disposed with, bearing block 3.2 is connected by roller bearing 3.3 and ball bearing 3.4 and pump shaft 4 It connects, to adapt to the radial load and axial force to pump shaft 4 that water body generates when pump shaft 4 rotates.
With reference to Fig. 1, axle sleeve 11 and sealing shroud can be provided between pump shaft 4 and the motor opening 2.1 of the embodiment of the present invention 12, the fixation of axle sleeve 11 is set on pump shaft 4, and sealing shroud 12 is fixed at motor 2.1 inner walls of opening, and the top of sealing shroud 12 is taken It is connected on 3.2 bottom end of bearing block of hydraulic motor 3, sealed set between axle sleeve 11 and sealing shroud 12, to prevent 2 outside of motor shell Water body or hydraulic motor 3 in liquid medium leak in motor shell 2.
The end of the axle sleeve 11 of the embodiment of the present invention can be mounted on by screw on motor shell 2.
With reference to Fig. 1, hydraulic medium is full of since motor shell 2 is interior, the axle sleeve 11 and sealing shroud of the embodiment of the present invention Mechanical seal 13 can be provided between 12 tops, can be prevented in the hydraulic fluid leak to motor shell 2 in hydraulic motor 3, The liquid medium being also prevented from motor shell 2 is leaked in hydraulic motor 3;And it is provided between 12 bottom of axle sleeve 11 and sealing shroud Rotatory sealing 14, rotatory sealing 14 can select two-lip seal, leaked in motor shell 2 to prevent water-stop body, are also prevented from horse It is leaked in water body up to the liquid medium in housing 2.
With reference to Fig. 1, the pump shaft 4 of the embodiment of the present invention can be fixedly installed on the part between motor shell 2 and impeller 5 There is transition axle sleeve 15, can prevent pump shaft 4 from being corroded by water body, increase the service life of pump shaft 4.
With reference to Fig. 1, the form that spline fitted may be used in the impeller 5 of the embodiment of the present invention is mounted on pump shaft 4, pump shaft 4 Stop nut 19 is provided on the position of 5 bottom end of impeller, to carry out axial limiting to impeller 5.
Velocity-coefficient method is mainly used during the Impeller Design of the embodiment of the present invention, naturally it is also possible to using Similar method and Theoretical calculation, the embodiment of the present invention are not limited herein.
With reference to Fig. 1, the impeller 5 of the embodiment of the present invention is detachably provided in the contact position with blower inlet casing 22 and pump case 1 to rub Wipe ring 20.When latent hydraulic pressure carries pump work, friction that impeller 5 and blower inlet casing and pump case 1 generate change in order to drag ring 20 Between friction, therefore when there is damage when drag ring 20 is because friction, can directly replace drag ring 20, be protected so as to play The effect of other component in the latent liquid ballast pump of shield.
With reference to Fig. 1, the latent liquid ballast pump of the embodiment of the present invention can also include self-priming apparatus, exist for latent liquid ballast pump Start the preparation of the preceding automatic water filling into pump case 1, which includes vacuum tube 16, level monitoring pipe 17 and ball-cock assembly 18, vacuum tube 16 is connected to the vacuum port 1.4 of the axial top setting of pump case 1, and level monitoring pipe 17 is arranged in parallel with vacuum tube 16, Level monitoring pipe 17 is connected with the liquid outlet 1.5 set on 1 side wall of pump case, is formed linker, is made level monitoring pipe 17 and pump case 1 Interior liquid level is consistent, and ball-cock assembly 18 is arranged in level monitoring pipe 17.By the height for confirming ball-cock assembly 18, you can judge Height of liquid level in pump case 1.When latent liquid ballast pump before activation, if find pump case 1 in liquid level be less than preset height, explanation Vacuum state is not in pump case 1, vacuumize process is carried out to 1 inside of pump case by vacuum extractor, makes to inhale automatically in pump case 1 Water, it is automatic until the liquid level in pump case 1 is not less than preset height.
With reference to Fig. 1, the latent liquid ballast pump of the embodiment of the present invention is due to needing long period of soaking in water body, water body pair in order to prevent The corrosion of latent liquid ballast pump, the embodiment of the present invention can set spelter 21 in the different parts of latent liquid ballast pump, due to spelter Reproducibility is stronger, can be used as protection pole, be connected with the metal of protected latent liquid ballast pump and form primary battery, reproducibility is stronger Spelter will as cathode occur oxidation reaction and consume, therefore, the metal of protected latent liquid ballast pump can as anode To avoid corrosion.The spelter 21 of the embodiment of the present invention can be arranged on 1 bottom of pump case, 1 side wall of pump case, 1 top of pump case and liquid level 17 bottom of pipe is monitored, the embodiment of the present invention is not limited herein.
In addition, the pump case 1 of the embodiment of the present invention can be whole welding type structure, relative to multi-segmental cast structure shell Body can reduce cost.
In the embodiment of the present invention, connecting flange can be respectively arranged at the water inlet 1.1 of pump case 1 and water outlet 1.2, For being connect with pipeline.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.

Claims (10)

1. a kind of latent liquid ballast pump, the latent liquid ballast pump includes pump case (1), motor shell (2) and blower inlet casing (22), the pump Water inlet (1.1) and water outlet (1.2), the motor shell (2) and the blower inlet casing (22) fixed setting are provided on shell (1) In the pump case (1);The bottom of the motor shell (2) is provided with motor opening (2.1), is set in the motor shell (2) It is equipped with hydraulic motor (3), the output terminal of the hydraulic motor (3) is connected with pump shaft (4), and the pump shaft (4) is across the motor It is open (2.1), the pump shaft (4) and the motor are open sealed set between (2.1), and the pump shaft (4) is across the motor Fixing sleeve is equipped with impeller (5) on the position of opening (2.1), and the impeller (5) is arranged in the blower inlet casing (22), and feature exists In the motor shell (2) is internal to be filled with liquid medium;The latent liquid ballast pump further includes monitoring device, the monitoring dress Put including monitoring pipe (8) and observation cavity (9), it is described monitoring manage (8) both ends respectively with the motor shell (2) and the sight Cavity (9) connection is examined, it is external that the observation cavity (9) is placed in the pump case (1).
2. latent liquid ballast pump according to claim 1, which is characterized in that the latent liquid ballast pump further includes oil inlet pipe (6) With oil return pipe (7), one end of the oil inlet pipe (6) is arranged on the inside of the oil return pipe (7), the middle part of the oil inlet pipe (6) Across the side wall of the oil return pipe (7), the other end of the oil inlet pipe (6) is connect with the hydraulic motor (3), the oil inlet pipe (6) it is connected with the hydraulic motor (3) with the oil return pipe (7) and forms a circuit.
3. latent liquid ballast pump according to claim 2, which is characterized in that the oil inlet pipe (6) passes through multiple connecting ribs (6.3) it is fixedly connected in the oil return pipe (7), the multiple connecting rib (6.3) is circumferential angularly along the oil inlet pipe (6) It is arranged at intervals.
4. latent liquid ballast pump according to claim 2, which is characterized in that the top of the motor shell (2) is equipped with cover board (23), connecting hole (1.3) is provided on the cover board (23), the oil return pipe (7) is in the connecting hole (1.3);It is described Oil return pipe (7) is including being located at the external upper oil pipe (7.1) of the pump case (1) and positioned at the internal lower oil of the motor shell (2) It manages (7.2), one end of the lower oil pipe (7.2) is connect with the hydraulic motor (3), and the other end of the lower oil pipe (7.2) is set Connection otic placode (7.3) is equipped with, the connection otic placode (7.3) is fixed on the cover board (23), and the upper oil pipe (7.1) is mounted on On the connection otic placode (7.3).
5. latent liquid ballast pump according to claim 4, which is characterized in that connection otic placode (7.3) top surface is provided with folder Plate (10) is held, the connection otic placode (7.3) is connected to by the grip block (10) on the cover board (23), the grip block (10) oil return hole (10.1) is provided on, the upper oil pipe (7.1) is fixed on the grip block (10), the lower oil pipe (7.2) it is connected with the upper oil pipe (7.1) by the oil return hole (10.1).
6. latent liquid ballast pump according to claim 5, which is characterized in that the monitoring pipe (8) is set in the upper oil pipe (7.1) external, the connection otic placode (7.3) is equipped with the grip block (10) and connects the monitoring pipe (8) and the motor The internal conveying flow passage (8.2) of housing (2).
7. latent liquid ballast pump according to claim 5, which is characterized in that the monitoring pipe (8) and the oil return pipe (7) are logical Excessive root connecting rod (8.1) connection, the more connecting rods (8.1) are along the circumferential equiangularly spaced setting of the oil return pipe (8).
8. dived liquid ballast pump according to claim 1-7 any one of them, which is characterized in that the pump shaft (4) and the motor Axle sleeve (11) and sealing shroud (12) are provided between opening (2.1), the axle sleeve (11) is set on the pump shaft (4), described Sealing shroud (12) is fixed at described motor opening (2.1) inner wall, and the top of the sealing shroud (12) is overlapped on the hydraulic pressure The bottom end of motor (3), sealed set between the axle sleeve (11) and the sealing shroud (12).
9. dived liquid ballast pump according to claim 1-7 any one of them, which is characterized in that the pump shaft (4) is in the motor Transition axle sleeve (15) is provided on part between housing (2) and the impeller (5).
10. dived liquid ballast pump according to claim 1-7 any one of them, which is characterized in that the latent liquid ballast pump further includes Self-priming apparatus, the self-priming apparatus include vacuum tube (16), level monitoring pipe (17) and ball-cock assembly (18), the vacuum tube (16) It is connected to the vacuum port (1.4) of the axial top setting of the pump case (1), the level monitoring pipe (17) and the vacuum tube (16) Parallel arrangement, the level monitoring pipe (17) connect with the liquid outlet (1.5) set on the pump case (1) side wall, the floating ball Valve (18) is arranged in the level monitoring pipe (17).
CN201610658271.5A 2016-08-11 2016-08-11 Latent liquid ballast pump Active CN106286314B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610658271.5A CN106286314B (en) 2016-08-11 2016-08-11 Latent liquid ballast pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610658271.5A CN106286314B (en) 2016-08-11 2016-08-11 Latent liquid ballast pump

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CN107165834A (en) * 2017-07-20 2017-09-15 合肥英腾嘉科技发展有限责任公司 A kind of big flow immersible pump
CN109654028B (en) * 2018-10-30 2021-04-09 武汉船用机械有限责任公司 Portable centrifugal pump
CN109702906B (en) * 2019-01-28 2024-02-02 江苏徐工工程机械研究院有限公司 Cutting machine driving unit double-monitoring cavity

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