CN207393485U - A kind of horizontal multi-stage centrifugal pump - Google Patents
A kind of horizontal multi-stage centrifugal pump Download PDFInfo
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- CN207393485U CN207393485U CN201721091784.9U CN201721091784U CN207393485U CN 207393485 U CN207393485 U CN 207393485U CN 201721091784 U CN201721091784 U CN 201721091784U CN 207393485 U CN207393485 U CN 207393485U
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- pump housing
- main shaft
- filler
- end cap
- stage centrifugal
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Abstract
The utility model discloses a kind of horizontal multi-stage centrifugal pumps, including the pump housing, the inside of the pump housing is equipped with main shaft, the outer wall of the main shaft is equipped with impeller, the junction of the right axle frame and main shaft is equipped with baffling disk, first axle sleeve is installed, the outer wall of first axle sleeve is equipped with filler on the left of the baffling disk.The horizontal multi-stage centrifugal pump, pass through main shaft, the cooperation of impeller and filler, wheel rotation makes the inside of the pump housing generate negative pressure, liquid enters the inside of the pump housing by inlet tube and entrance, liquid is recycled or discharged to liquid by outlet section and outlet tube, the material of filler is oil immersion asbestos packing, when main shaft and filler have relative motion, it is made to generate radial load, and it is in close contact with axis, at the same time, the lubricant impregnated in filler is extruded, oil film is formed between contact surface, here it is the mechanism of packing seal, the sealing of filler and high lubricating effect, improve the service life of the pump housing, the use demand of user can be met.
Description
Technical field
It is specially a kind of horizontal multi-stage centrifugal pump the utility model is related to centrifuge pump technical field.
Background technology
Existing horizontal multi-stage centrifugal pump is complicated, and operation troubles rate is high, balance disk wear in axial thrust balancing devices
Soon, repair is inconvenient, and using packing seal in axial inlet segment and water exit end both ends annular seal space, the leakage rate of water is big, causes water
Waste, user need to increase drainage arrangement, filler and axle sleeve quick abrasion using water pump, replace frequent, especially make at pump water inlet end
With packing seal, due to, there are gap, be easy to causeing air between filler and axle sleeve and entering in pump, cause to influence pump sump
Amount causes Pump Suction not upper water when serious, furthermore water pump rotor supporting both ends are using cylinder roller bearing, long-term to operate bearing temperature
Rise is easily damaged bearing, water pump service life is reduced, in the prior art, such as the reality of Application No. 201520503578.9
With new patent, including the pump housing, distinguish arranged on the inlet segment of the pump housing, water exit end and multistage stage casing, pump shaft, cooling balance device
The bearing arrangement at the both ends of the pump shaft and corresponding sealing device are connected to, the inlet segment and water exit end are set respectively
In axially and radially, the bearing arrangement of inlet segment one end is arranged on the intake antrum of the inlet segment by the corresponding support of bearing
Interior, the utility model is although simple in structure, but the sealing of bearing and lubricant effect are bad, reduces the service life of the pump housing,
The use demand of user cannot be met.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of horizontal multi-stage centrifugal pump
Problem.
To achieve the above object, the utility model provides following technical solution：A kind of horizontal multi-stage centrifugal pump, including pump
Body, the top right side of the pump housing are equipped with entrance, and the top left hand of the pump housing is equipped with outlet section, and the top of the pump housing is pacified
Equipped with the first rod bolt, the bottom of the pump housing is equipped with the second rod bolt, the first rod bolt and the second rod
The left and right ends of bolt are mounted on nut, and feet, the right end of the pump housing are mounted at left and right sides of the bottom of the pump housing
Right end cap is installed, the left end of the pump housing is equipped with left end cap, and the left end cap and right end cap pass through screw and pump housing phase
Even, right axle frame is installed on the right side of the right end cap, the inside of the pump housing is equipped with main shaft, and the outer wall of the main shaft is equipped with
Impeller is equipped with guide vane on the outside of the impeller, and the inside left of the pump housing is equipped with balance plate, and the inside of the pump housing is right
Side is equipped with baffle, and the right end of the main shaft sequentially passes through the junction peace of right end cap and right axle frame, the right axle frame and main shaft
Equipped with baffling disk, the first axle sleeve is installed on the left of the baffling disk, the outer wall of first axle sleeve is equipped with filler.
Preferably, the left end of the main shaft runs through left end cap, and the left end of the left end cap is equipped with bearing bracket stand, the bearing
The junction of frame and main shaft is equipped with bearing, and the second axle sleeve is equipped on the left of the bearing, is equipped on the right side of the bearing
3rd axle sleeve, the inside left end of the bearing bracket stand are equipped with gland.
Preferably, the top left hand of the bearing bracket stand is equipped with regarding oily window.
Preferably, oil nozzle is installed at the top center of the bearing bracket stand.
Preferably, check washer is installed between the nut and the pump housing.
Compared with prior art, the beneficial effects of the utility model are：The horizontal multi-stage centrifugal pump passes through main shaft, impeller
With the cooperation of filler, motor, which rotates, drives main axis, and main shaft impeller rotates, and it is negative that wheel rotation generates the inside of the pump housing
Pressure, liquid enter the inside of the pump housing by inlet tube and entrance, and liquid recycles liquid by outlet section and outlet tube
Or discharge, the material of filler is oil immersion asbestos packing, when main shaft has relative motion with filler, due to the plasticity of filler, makes it
Radial load is generated, and is in close contact with axis, at the same time, the lubricant impregnated in filler is extruded, and is formed between contact surface
Oil film, since contact condition is not especially uniform, just there is " boundary lubrication " state in contact site, is known as " bearing effect
Should ", and not in contact with recess portion form small oil groove, have a thicker oil film, contact site is irregular with together with the composition of non-contact portion position
Labyrinth, play a part of that liquid stream is prevented to leak, this claims " labyrinth effect ", here it is the mechanism of packing seal, the sealing of filler and
High lubricating effect improves the service life of the pump housing, can meet the use demand of user.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the right axle frame structure diagram of the utility model；
Fig. 3 is the bearing bracket stand structure diagram of the utility model.
In figure：1st, entrance, 2, outlet section, 3, feet, 4, main shaft, the 5, first rod bolt, the 6, second rod bolt, 7,
Nut, 8, right end cap, 9, left end cap, 10, screw, 11, bearing bracket stand, 12, bearing, 13, regarding oily window, 14, gland, 15, the pump housing,
16th, guide vane, 17, impeller, 18, balance plate, 19, right axle frame, 20, baffle, 21, baffling disk, the 22, first axle sleeve, 23, filler, 24,
Second axle sleeve, the 25, the 3rd axle sleeve, 26, oil nozzle, 27, check washer.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of horizontal multi-stage centrifugal pump, including the pump housing 15,
Entrance 1 is equipped on the right side of the top of the pump housing 15, entrance 1 is connected with inlet tube, and liquid is sucked from entrance 1, the top of the pump housing 15
End left side is equipped with outlet section 2, and outlet section 2 is connected with outlet tube, and liquid is discharged from outlet section 2, and the top of the pump housing 15 is equipped with the
One rod bolt 5, the bottom of the pump housing 15 are equipped with a left side for the second rod bolt 6, the first rod bolt 5 and the second rod bolt 6
Right both ends are mounted on nut 7, and check washer 27 is equipped between nut 7 and the pump housing 15, and check washer 27 is used to prevent nut 7
It loosens, is mounted on feet 3 at left and right sides of the bottom of the pump housing 15, more stable, the right end of the pump housing 15 when feet 3 runs the pump housing 15
Right end cap 8 is installed, the left end of the pump housing 15 is equipped with left end cap 9, and left end cap 9 and right end cap 8 pass through screw 10 and the pump housing 15
It is connected, the right side of right end cap 8 is equipped with right axle frame 19, and the inside of the pump housing 15 is equipped with main shaft 4, and the outer wall of main shaft 4 is equipped with leaf
Wheel 17, impeller 17 are equipped with five groups, and five groups of impellers 17 increase the suction of the pump housing 15, and 4 impeller 17 of main shaft rotates, and impeller 17 rotates
The inside of the pump housing 15 is made to generate negative pressure, for liquid by inlet tube and entrance 1 into the inside of the pump housing 15, liquid passes through outlet section
2 and outlet tube liquid is recycled or discharged, the outside of impeller 17 is equipped with guide vane 16, and the inside left of the pump housing 15 is equipped with
Balance plate 18, balance plate 18 is for making liquid more steady in the internal flow of the pump housing 15, the vibration of the reduction pump housing 15, the pump housing 15
Inner right side is equipped with baffle 20, and the right end of main shaft 4 sequentially passes through right end cap 8 and right axle frame 19, right end and the motor phase of main shaft 4
Even, motor, which rotates, drives main shaft 4 to rotate, and right axle frame 19 and the junction of main shaft 4 are equipped with baffling disk 21, and baffling disk 21 makes right axle
Frame is sealed with main shaft 4, prevents that liquid from entering the inside of right axle frame 19, and the left side of baffling disk 21 is equipped with the first axle sleeve 22, and first
The outer wall of axle sleeve 22 is equipped with filler 23, and the material of filler 23 is oil immersion asbestos packing, when main shaft 4 has relative motion with filler,
Due to the plasticity of filler, it is made to generate radial load, and be in close contact with axis, at the same time, the lubricant impregnated in filler is squeezed
Go out, oil film is formed between contact surface, since contact condition is not especially uniform, contact site just occurs " boundary lubrication "
State, be known as " bearing effect ", and not in contact with recess portion form small oil groove, have thicker oil film, contact site and non-contact portion
One of irregular labyrinth of position composition, plays a part of that liquid stream is prevented to leak, this claims " labyrinth effect ", and here it is the machines of packing seal
Reason, for the left end of main shaft 4 through left end cap 9, the left end of left end cap 9 is equipped with bearing bracket stand 11, the junction of bearing bracket stand 11 and main shaft 4
Bearing 12 is installed, the left side of bearing 12 is equipped with the second axle sleeve 24, and the right side of bearing 12 is equipped with the 3rd axle sleeve 25, bearing bracket stand
11 inside left end is equipped with gland 14, and the second axle sleeve 24, the 3rd axle sleeve 25 and bearing 12 make the rotation of main shaft 4 more smooth, axis
The top left hand of bolster 11 is equipped with regarding oily window 13, and the content of bearing bracket stand 11 internal lubrication oil, bearing are can see that depending on oily window 13
Oil nozzle 26 is installed, lubricating oil is injected in the inside that oil nozzle 26 is used for bearing 12 at the top center of frame 11.
The external power supply of motor is connected, motor is started to work, and motor, which rotates, drives main shaft 4 to rotate, entrance 1 and inlet tube
Connection, 4 impeller 17 of main shaft rotate, and impeller 17, which rotates, makes the inside of the pump housing 15 generate negative pressure, and liquid is by inlet tube and enters
Mouth section 1 is recycled or discharged to liquid by outlet section 2 and outlet tube into the inside of the pump housing 15, liquid, the material of filler 23
Matter is oil immersion asbestos packing, when main shaft 4 and filler have relative motion, due to the plasticity of filler, it is made to generate radial load, and with
Axis is in close contact, and at the same time, the lubricant impregnated in filler is extruded, and oil film is formed between contact surface, due to contacting shape
State is not especially uniform, and " boundary lubrication " state just occurs in contact site, is known as " bearing effect ", and not in contact with recess portion
Small oil groove is formed, there is thicker oil film, contact site irregular labyrinth together with the composition of non-contact portion position rises and a liquid stream is prevented to let out
The effect of leakage, this claims " labyrinth effect ", and here it is the mechanism of packing seal.
In the description of the utility model, it is to be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
Portion ", " other end ", " on ", " one side ", " top ", " interior ", " forepart ", " center ", the orientation of the instructions such as " both ends " or position close
Be for based on orientation shown in the drawings or position relationship, be for only for ease of description the utility model and simplify description rather than
Indicate or imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore cannot
It is interpreted as the limitation to the utility model.
In addition, term " first ", " second ", " the 3rd ", " the 4th " are only used for description purpose, and it is not intended that instruction or
It implies relative importance or the implicit quantity for indicating indicated technical characteristic, defines " first ", " second ", " the as a result,
Three ", at least one this feature can be expressed or be implicitly included to the feature of " the 4th ".
In the utility model, unless otherwise clearly defined and limited, term " installation ", " setting ", " connection ", " Gu
It is fixed ", the terms such as " being screwed on " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；
Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can be with
It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of horizontal multi-stage centrifugal pump, including the pump housing (15), it is characterised in that：Be equipped on the right side of the top of the pump housing (15) into
Mouth section (1), the top left hand of the pump housing (15) are equipped with outlet section (2), and the top of the pump housing (15) is equipped with the first rod
Bolt (5), the bottom of the pump housing (15) are equipped with the second rod bolt (6), the first rod bolt (5) and the second rod
The left and right ends of bolt (6) are mounted on nut (7), and feet (3), institute are mounted at left and right sides of the bottom of the pump housing (15)
The right end for stating the pump housing (15) is equipped with right end cap (8), and the left end of the pump housing (15) is equipped with left end cap (9), the left end cap
(9) it is connected with right end cap (8) by screw (10) with the pump housing (15), right axle frame is installed on the right side of the right end cap (8)
(19), the inside of the pump housing (15) is equipped with main shaft (4), and the outer wall of the main shaft (4) is equipped with impeller (17), the impeller
(17) guide vane (16) is installed, the inside left of the pump housing (15) is equipped with balance plate (18), the pump housing (15) on the outside of
Inner right side baffle (20) is installed, the right end of the main shaft (4) sequentially passes through right end cap (8) and right axle frame (19), described
Right axle frame (19) and the junction of main shaft (4) are equipped with baffling disk (21), and first axle is equipped on the left of the baffling disk (21)
It covers (22), the outer wall of first axle sleeve (22) is equipped with filler (23).
2. a kind of horizontal multi-stage centrifugal pump according to claim 1, it is characterised in that：The left end of the main shaft (4) runs through
Left end cap (9), the left end of the left end cap (9) are equipped with bearing bracket stand (11), the bearing bracket stand (11) and the junction of main shaft (4)
Bearing (12) is installed, the second axle sleeve (24) on the left of the bearing (12) is installed, is equipped on the right side of the bearing (12)
3rd axle sleeve (25), the inside left end of the bearing bracket stand (11) are equipped with gland (14).
3. a kind of horizontal multi-stage centrifugal pump according to claim 2, it is characterised in that：The top of the bearing bracket stand (11) is left
Side is equipped with regarding oily window (13).
4. a kind of horizontal multi-stage centrifugal pump according to claim 2, it is characterised in that：In the top of the bearing bracket stand (11)
Oil nozzle (26) is installed at the heart.
5. a kind of horizontal multi-stage centrifugal pump according to claim 1, it is characterised in that：The nut (7) and the pump housing (15)
Between check washer (27) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091784.9U CN207393485U (en) | 2017-08-29 | 2017-08-29 | A kind of horizontal multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091784.9U CN207393485U (en) | 2017-08-29 | 2017-08-29 | A kind of horizontal multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207393485U true CN207393485U (en) | 2018-05-22 |
Family
ID=62418598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091784.9U Active CN207393485U (en) | 2017-08-29 | 2017-08-29 | A kind of horizontal multi-stage centrifugal pump |
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| Country | Link |
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| CN (1) | CN207393485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360801A (en) * | 2020-10-14 | 2021-02-12 | 陈钲仁 | High leakproofness centrifugal pump based on double containment formula is packed |
| CN118049395A (en) * | 2024-04-11 | 2024-05-17 | 大庆文迪石油设备有限公司 | Mechanical sealing device of double-suction centrifugal oil pump |
-
2017
- 2017-08-29 CN CN201721091784.9U patent/CN207393485U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112360801A (en) * | 2020-10-14 | 2021-02-12 | 陈钲仁 | High leakproofness centrifugal pump based on double containment formula is packed |
| CN118049395A (en) * | 2024-04-11 | 2024-05-17 | 大庆文迪石油设备有限公司 | Mechanical sealing device of double-suction centrifugal oil pump |
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