CN108343615A - A kind of methanol feed pump - Google Patents
A kind of methanol feed pump Download PDFInfo
- Publication number
- CN108343615A CN108343615A CN201810096502.7A CN201810096502A CN108343615A CN 108343615 A CN108343615 A CN 108343615A CN 201810096502 A CN201810096502 A CN 201810096502A CN 108343615 A CN108343615 A CN 108343615A
- Authority
- CN
- China
- Prior art keywords
- pump
- bearing
- bearing housing
- main shaft
- protecgulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/106—Shaft sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
- F04D29/2227—Construction and assembly for special materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
Abstract
The invention discloses a kind of methanol feed pumps, including bearing housing, bearing housing is connected with pump holder, bearing housing one end is provided with pump protecgulum, it is provided with pump middle cover between pump protecgulum and bearing housing, pump middle cover is connect with pump protecgulum and bearing housing by screw respectively, pump case has been bolted in pump middle cover, pump case is contacted with pump protecgulum, main shaft is provided in bearing housing, main shaft one end passes through pump protecgulum to be located in pump case, the main shaft other end is connected with driven shaft one end, the driven shaft other end is connected with box coupling, it is provided with power unit and Bearning mechanism in pump case and bearing housing.Present invention assembly is tight, and gapless is reasonable for structure, tight, and methanol charge efficiency is high, has preferable practicability.
Description
Technical field
The invention belongs to fuel hauling equipment technical fields, are related to a kind of methanol feed pump.
Background technology
In recent years, with the development of economy, energy problem has become a worldwide problem.Energy problem is mainly reflected in
Oil problem, and methanol is as a kind of new energy, is good oil substitutes.In the various pumps of conveying methanol, centrifugal pump
The amount of liquid of conveying is big, the uniform no pulse phenomenon of drain, and pump can be manufactured with corrosion-resistant material, is applicable in conveying etchant solution.
Since methanol has toxicity and strong corrosive, the sealing ring of conventional mechanical face seals of centrifugal pumps and the sealing ring of the pump housing, impeller, pump
Lid is encountered and is dissolved soon after methanol, so needing using corrosion-resistant, the good centrifugal pump of leakproofness carries out defeated
It send
Invention content
The object of the present invention is to provide a kind of methanol feed pumps, improve the sealing performance of methanol feed pump.
The technical solution adopted in the present invention is a kind of methanol feed pump, including bearing housing, and bearing housing is connected with pump branch
Frame, bearing housing one end are provided with pump protecgulum, pump and are provided with pump middle cover between protecgulum and bearing housing, and pump middle cover passes through screw
It is connect respectively with pump protecgulum and bearing housing, pump case has been bolted in pump middle cover, and pump case is contacted with pump protecgulum, in bearing housing
It is provided with main shaft, main shaft one end passes through pump protecgulum to be located in pump case, and the main shaft other end is connected with driven shaft one end, and driven shaft is another
End key connection has box coupling, and power unit and Bearning mechanism are provided in pump case and bearing housing.
The features of the present invention also characterized in that
Pump case is respectively arranged with inlet and outlet, and the axis of inlet and outlet is vertical, and import is located at same axis with main shaft,
And inlet and outlet inner wall is both provided with screw thread, and balance pipe, and balance pipe and the hollow structure inside pump case are provided on pump case
Connection is provided with pump case gasket between pump case and pump protecgulum.
Power unit includes the impeller being connect with main shaft one end, and the main shaft one end for being connected with impeller is located in pump case, and leaf
Wheel is fixed on main shaft by matched holding screw and impeller locking nut, wear-resisting before being provided between pump case and impeller
Ring, preceding wear ring are fixed by screws in pump housing endophragm, pump and are provided with rear wear ring between protecgulum and impeller, rear wear ring passes through
Screw, which is fixed on, pumps protecgulum inner wall, is provided with the first plug on main shaft with pump protecgulum position corresponding position, is blocked up with first on the outside of main shaft
Head position corresponding position is sheathed with seal assembly, and seal assembly one end is bonded with impeller, and the seal assembly other end is provided with gland, close
It is bonded with pump front cover surface on the outside of sealing assembly, and pumps the one end being bonded on the outside of front cover surface and seal assembly and be located in gland, and
It is provided with O-ring between one end end face and gland of pump protecgulum in gland；
Further include the siphunculus being separately positioned on bearing housing and pipe fitting weld assembly, siphunculus one end is located at outside bearing housing
Portion, the siphunculus other end are located inside bearing housing and opposite with gland position, and pipe fitting weld assembly one end is located at outside bearing housing,
The pipe fitting weld assembly other end is located in gland.
Seal assembly includes the axle sleeve and gasket being linked in outside main shaft, and gasket is between main shaft and axle sleeve, and the one of axle sleeve
End is bonded with impeller, and mechanical seal is provided with outside axle sleeve, and axle sleeve is 0Cr18Ni12Mo2 stainless steel materials.
Pipe fitting weld assembly includes the straight tube that one end is located at outside bearing housing, and straight tube is located at the company of one end outside bearing housing
It is connected to pipe and connects nozzle, straight tube connects with pipe and is welded with pipe fitting on the outside of nozzle junction, and the straight tube other end is located in gland.
The connection of impeller and main shaft is key connection.
Bearning mechanism includes the oil scraper ring being linked on main shaft, and oil scraper ring is located at the side that seal assembly is provided with gland,
Side of the oil scraper ring far from seal assembly is provided with first bearing lid, and the other end of bearing housing is provided with second bearing lid, and first
Bearing cap and second bearing lid are connect by bolt with bearing housing, and second bearing cap surface is provided with oil sealing, first bearing lid
And second bearing lid is provided with bearing cap paper washer between bearing housing, is provided with first bearing on main shaft, on driven shaft with master
The connecting pin of axis is provided with second bearing, and first bearing and second bearing are located at first bearing lid and second bearing lid is close
Mutual side, first bearing are provided with adjustment ring close to the end face of first bearing lid, corresponding with first bearing on bearing housing
Position is provided with eye bolt bolt, and oil level indicator is fixed in bearing housing, is provided with the second plug in oil level indicator, and oil level indicator is located at the
Between one bearing and second bearing, snorkel is provided on bearing housing, snorkel is located at right over oil level indicator, and snorkel makes axis
It holds and is communicated with air with oil level indicator inside case.
Label is fixed with by screw on bearing housing.
Box coupling includes the first shaft coupling being connect with driven shaft key, and the first shaft coupling is connected with sleeve by pin
End face, is provided with elastic ring between pin and the first shaft coupling, sleeve other end has been connected by screw the second shaft coupling.
Pump protecgulum, pump case and impeller material be ZGCr18Ni12Mo2Ti, it is main shaft, impeller locking nut, preceding wear-resisting
Ring, rear wear ring and gland are 0Cr18Ni12Mo2 stainless steel materials.
The invention has the advantages that a kind of methanol feed pump of the present invention contacted with methanol or mediate contact each zero
Component has been all made of corrosion resistant material of good performance, and cost is relatively low, to extend the service life of pump, improves work effect
Rate；Component of the present invention, assembles between part tight, and gapless is reasonable for structure, tight；Methanol charge efficiency is high, has preferable
Practicability.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of methanol feed pump of the present invention；
Fig. 2 is the end view of impeller in a kind of methanol feed pump of the present invention；
Fig. 3 is the structural schematic diagram of seal assembly in a kind of methanol feed pump of the present invention.
In figure, 1. bearing housings, 2. pump holders, 3. pump protecgulums, 4. pump middle covers, 5. pump cases, 6. main shafts, 7. driven shafts, 8.
Import, 9. export, 10. balance pipes, 11. pump case gaskets, 12. impellers, 13. holding screws, 14. impeller locking nuts, resistance to before 15.
Bull ring, wear ring after 16., 17. first plugs, 18. glands, 19. siphunculus, 20. pipe fitting weld assemblies, 21. axle sleeves, 22. pads
Piece, 23. mechanical seals, 24. straight tubes, 25. pipes connect nozzle, 26. pipe fittings, 27. oil scraper rings, 28. first bearing lids, 29. second axis
Hold lid, 30. oil sealings, 31. bearing cap paper washers, 32. first bearings, 33. second bearings, 34. adjustment rings, 35. eye bolt bolts,
36. oil level indicator, 37. second plugs, 38. snorkels, 39. labels, 40. first shaft couplings, 41. sleeves, 42. elastic rings, 43.
Two shaft couplings, 44.O shape rings.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of methanol feed pump of the present invention is fixed with mark on bearing housing 1 as shown in Figure 1, including bearing housing 1 by screw
Board 39, bearing housing 1 are connected with pump holder 2, and 1 one end of bearing housing is provided with pump protecgulum 3, pumps and be provided between protecgulum 3 and bearing housing 1
Middle cover 4 is pumped, pump middle cover 4 is connect with pump protecgulum 3 and bearing housing 1 by screw respectively, and pump middle cover 4 is bolted
There are pump case 5, pump case 5 to be contacted with pump protecgulum 3, main shaft 6 is provided in bearing housing 1,6 one end of main shaft passes through pump protecgulum 3 to be located at pump case 5
In, 6 other end of main shaft is connected with 7 one end of driven shaft, and 7 other end of driven shaft key connection has box coupling 8, pump case 5 and bearing
It is provided with power unit and Bearning mechanism in case 1.
Pump case 5 is respectively arranged with import 8 and outlet 9, and import 8 is vertical with the axis of outlet 9, and import 8 is located at same with main shaft 6
One axis, and import 8 and 9 inner walls of outlet are both provided with screw thread, and balance pipe 10, and balance pipe 10 and pump case 5 are provided on pump case 5
Internal hollow structure connection, pump case gasket 11 is provided between pump case 5 and pump protecgulum 3.
Power unit includes the impeller 12 being keyed with 6 one end of main shaft, and the end view of impeller 12 is as shown in Fig. 2, connection
There is 6 one end of main shaft of impeller 12 to be located in pump case 5, and impeller 12 passes through matched holding screw 13 and impeller locking nut 14
It is fixed on main shaft 6, wear ring 15 before being provided between pump case 5 and impeller 12, preceding wear ring 15 is fixed by screws in pump case 5
Inner wall pumps and is provided with rear wear ring 16 between protecgulum 3 and impeller 12, and rear wear ring 16 is fixed by screws in pump 3 inner wall of protecgulum,
The first plug 17 is provided on main shaft 6 with 3 position corresponding position of pump protecgulum, 6 outside of main shaft is covered with 17 position corresponding position of the first plug
Conjunction has seal assembly, seal assembly one end to be bonded with impeller 12, and the seal assembly other end is provided with gland 18, seal assembly outside
It is bonded with 3 surface of pump protecgulum, and pumps the one end being bonded on the outside of 3 surface of protecgulum and seal assembly and be located in gland 18, and positioned at pressure
It is provided with O-ring 44 between one end end face and gland 18 of pump protecgulum 3 in lid 18；
Further include the siphunculus 19 being separately positioned on bearing housing 1 and pipe fitting weld assembly 20,19 one end of siphunculus is located at axis
It holds outside case 1,19 other end of siphunculus is located at 1 inside of bearing housing and, pipe fitting weld assembly 20 one end opposite with 18 position of gland
Outside bearing housing 1,20 other end of pipe fitting weld assembly is located in gland 18.
As shown in figure 3, seal assembly includes the axle sleeve 21 being linked in outside main shaft 6 and gasket 22, gasket 22 is located at 6 He of main shaft
Between axle sleeve 21, one end of axle sleeve 21 is bonded with impeller 12, and mechanical seal 23 is provided with outside axle sleeve 21, and axle sleeve 21 uses
0Cr18Ni12Mo2 stainless steels.
Pipe fitting weld assembly 20 is located at the straight tube 24 outside bearing housing 1 including one end, and straight tube 24 is located at outside bearing housing 1
One end be connected with pipe and connect nozzle 25, straight tube 24 connects with pipe and is welded with pipe fitting 26,24 other end position of straight tube on the outside of 25 junction of nozzle
In gland 18.
Bearning mechanism includes the oil scraper ring 27 being linked on main shaft 6, and oil scraper ring 27 is located at seal assembly and is provided with gland 18
Side, side of the oil scraper ring 27 far from seal assembly be provided with first bearing lid 28, and the other end of bearing housing 1 is provided with second
Bearing cap 29, first bearing lid 28 and second bearing lid 29 are connect by bolt with bearing housing 1, and 29 surface of second bearing lid is set
It is equipped with oil sealing 30, first bearing lid 28 and second bearing lid 29 are provided with bearing cap paper washer 31, main shaft 6 between bearing housing 1
On be provided with first bearing 32, the connecting pin of main shaft 6 is provided with second bearing 33, first bearing 32 and second on driven shaft 7
Bearing 33 is located at first bearing lid 28 and second bearing lid 29 close to mutual side, and first bearing 32 is close to first bearing
The end face of lid 28 is provided with adjustment ring 34, and the corresponding position of first bearing 32 is provided with eye bolt bolt 35, axis on bearing housing 1
It holds and is fixed with oil level indicator 36 in case 1, the second plug 37 is provided in oil level indicator 36, oil level indicator 36 is located at first bearing 32 and second
Between bearing 33, the snorkel 38 being connected to 1 inside of bearing housing is provided on bearing housing 1, snorkel 38 is being located at oil level indicator 37 just
Top.
Box coupling 8 includes the first shaft coupling 40 being keyed with driven shaft 7, and the first shaft coupling 40 is connected by pin
There is 41 end face of sleeve, elastic ring 42 is provided between pin and the first shaft coupling 40,41 other end of sleeve is connected by screw
It is connected to the second shaft coupling 43.
The effect of critical piece is specific as follows in a kind of methanol feed pump of the present invention：
Balance pipe 10 mainly balances a kind of axial thrust of methanol feed pump of the present invention, reduces the axial float of rotor, keeps away
Exempt from impeller 12 to rub with pump case 5；
Matched holding screw 13 and impeller locking nut 14 play the role of fastening and locking to impeller 12, have simultaneously
It fills a vacancy the effect of runner；
Axle sleeve 21 reduces main shaft 6 and rotates the abrasion brought；
Mechanical seal 23 prevents methanol from revealing；
The effect of oil sealing 30 is to prevent oil plant from revealing；
Bearing cap paper washer 31 is for preventing external foreign matter from entering bearing；
Adjustment ring 34 is used for adjustment assembly gap；
The effect of eye bolt bolt 35 is to can be used for lifting by crane a kind of methanol feed pump of the present invention；
Snorkel 38 is used for keeping being in the state that air communicates with oil level indicator 36 in bearing housing 1.
Bearing housing 1, first bearing lid 28 and second bearing lid 29 are all made of HT20-40 materials, can resist permanent deformation and
It destroys；
Protecgulum 3, pump case 5 and impeller 12 are pumped due to directly being contacted with methanol, therefore selects ZGCr18Ni12Mo2Ti materials, it is right
Reducing medium and various Organic Acid and Bases, salt have a good corrosion resistance.
It pumps middle cover 4 and uses QT40-17 materials, have the advantages that high intensity, high tenacity, wearability are preferable；
It main shaft 6, impeller locking nut 14, preceding wear ring 15, rear wear ring 16,18 axle sleeve 21 of gland and is all made of
0Cr18Ni12Mo2 stainless steels have good resistance to intergranular corrosion；
Adjustment ring 34, the first plug 17, bolt and screw are all made of 2Cr13 martensitic stain less steels, can resist flexible deformation,
Plastic deformation is destroyed, and has certain corrosion resistance；
O-ring 44 does material with polytetrafluoroethylene (PTFE), and friction is small, while can also methanol tolerant corrosion.
A kind of working media of methanol feed pump of the present invention is methanol；Inlet temperature is 25 DEG C；Inlet pressure is 3.8kg/
cm2；Outlet pressure is 4.8kg/cm2；Rotating speed is 2940r/min；Discharge capacity is 40m3/h；Power is 7.1KW.
A kind of course of work of methanol feed pump of the present invention is specific as follows：
Box coupling 8 is connect with motor, makes box coupling 8 that driven shaft 7 be driven to rotate, further passes through bearing housing
1, so that main shaft 6 is realized rotation by the fixed function of first bearing 32 and second bearing 33, is passed kinetic energy by the rotation of main shaft 6
Impeller 12 is passed, to 12 rotary work of impeller, the methanol liquid between impeller 12 also must be with rotation.In centrifugal force
Under effect, methanol liquid is thrown to outer rim from 12 center of impeller and obtains energy, enters pump case 5 to leave impeller outer edge at a high speed
In.In pump case 5, methanol liquid is slowed down due to being gradually expanded for runner, and part kinetic energy is changed into static energy, finally with
Higher pressure flows into discharge line from outlet 9.It is heart-shaped in impeller 12 when methanol liquid flows to outer rim by 12 center of impeller
At certain vacuum, since the pressure of storage tank ullage is more than the pressure at liquid inlet 8, liquid is just continuously pressed into leaf
In wheel 12, so, as long as impeller 12 constantly rotates, liquid constantly will be inhaled into and be discharged.
By the above-mentioned means, a kind of methanol feed pump of the present invention is contacted with methanol or each parts of mediate contact are equal
Corrosion resistant material of good performance is used, and cost is relatively low, to extend the service life of pump, improves working efficiency；This
Invention component, assembles between part tight, and gapless is reasonable for structure, tight；Methanol charge efficiency is high, has preferable practical
Property.
Claims (10)
1. a kind of methanol feed pump, which is characterized in that including bearing housing (1), the bearing housing (1) is connected with pump holder (2), institute
It states bearing housing (1) one end and is provided with pump protecgulum (3), pump middle cover (4) is provided between the pump protecgulum (3) and bearing housing (1),
The pump middle cover (4) is connect with pump protecgulum (3) and bearing housing (1) by screw respectively, and the pump middle cover (4) passes through spiral shell
It tethers and is connected to pump case (5), the pump case (5) contacts with pump protecgulum (3), and main shaft (6) is provided in the bearing housing (1), described
Main shaft (6) one end passes through pump protecgulum (3) to be located in pump case (5), and main shaft (6) other end is connected with driven shaft (7) one end, it is described from
Moving axis (7) other end key connection have box coupling (8), be provided in the pump case (5) and bearing housing (1) power unit with
Bearning mechanism.
2. a kind of methanol feed pump according to claim 1, which is characterized in that the pump case (5) is respectively arranged with import
(8) and (9) being exported, the import (8) and the axis for exporting (9) are vertical, and the import (8) is located at same axis with main shaft (6),
And the import (8) and outlet (9) inner wall are both provided with screw thread, and balance pipe (10), and balance pipe are provided on the pump case (5)
(10) hollow structure internal with pump case (5) is connected to, and pump case gasket (11) is provided between the pump case (5) and pump protecgulum (3).
3. a kind of methanol feed pump according to claim 1, which is characterized in that the power unit includes and main shaft (6)
The impeller (12) of one end connection, described main shaft (6) one end for being connected with impeller (12) is located in pump case (5), and the impeller
(12) it is fixed on main shaft (6) by matched holding screw (13) and impeller locking nut (14), the pump case (5) and leaf
It is provided with preceding wear ring (15) between wheel (12), the preceding wear ring (15) is fixed by screws in pump case (5) inner wall, the pump
Rear wear ring (16) is provided between protecgulum (3) and impeller (12), the rear wear ring (16) is fixed by screws in pump protecgulum
(3) inner wall, is provided with the first plug (17) on the main shaft (6) with pump protecgulum (3) position corresponding position, on the outside of the main shaft (6)
It is sheathed with seal assembly with the first plug (17) position corresponding position, described seal assembly one end is bonded with impeller (12), described close
The sealing assembly other end is provided with gland (18), is bonded with pump protecgulum (3) surface on the outside of the seal assembly, and pump protecgulum (3) table
The one end being bonded on the outside of face and seal assembly is located in gland (18), and one end end of the pump protecgulum (3) in gland (18)
O-ring (44) is provided between face and gland (18)；
Further include the siphunculus (19) being separately positioned on bearing housing (1) and pipe fitting weld assembly (20), the siphunculus (19) one
It is external that end is located at bearing housing (1), siphunculus (19) other end be located at it is inside bearing housing (1) and opposite with gland (18) position,
Described pipe fitting weld assembly (20) one end is located at bearing housing (1) outside, and pipe fitting weld assembly (20) other end is located at
In gland (18).
4. a kind of methanol feed pump according to claim 3, which is characterized in that the seal assembly includes being linked in main shaft
(6) outside axle sleeve (21) and gasket (22), the gasket (22) are located between main shaft (6) and axle sleeve (21), the axle sleeve (21)
One end be bonded with impeller (12), be provided with mechanical seal (23) outside the axle sleeve (21), the axle sleeve (21) is
0Cr18Ni12Mo2 stainless steel materials.
5. a kind of methanol feed pump according to claim 3, which is characterized in that the pipe fitting weld assembly (20) includes
One end is located at the external straight tube (24) of bearing housing (1), and the straight tube (24), which is located at one end outside bearing housing (1) and is connected with pipe, to be connect
Nozzle (25), the straight tube (24) connect with pipe and are welded with pipe fitting (26), straight tube (24) other end on the outside of nozzle (25) junction
In gland (18).
6. a kind of methanol feed pump according to claim 3, which is characterized in that the company of the impeller (12) and main shaft (6)
It is connected in key connection.
7. a kind of methanol feed pump according to claim 3, which is characterized in that the Bearning mechanism includes being linked in main shaft
(6) oil scraper ring (27) on, the oil scraper ring (27) are located at the side that seal assembly is provided with gland (18), the oil scraper ring
(27) side far from seal assembly is provided with first bearing lid (28), and the other end of the bearing housing (1) is provided with the second axis
Lid (29) is held, the first bearing lid (28) and second bearing lid (29) are connect by bolt with bearing housing (1), and described second
Bearing cap (29) surface is provided with oil sealing (30), the first bearing lid (28) and second bearing lid (29) with bearing housing (1)
Between be provided with bearing cap paper washer (31), be provided with first bearing (32) on the main shaft (6), on the driven shaft (7) with master
The connecting pin of axis (6) is provided with second bearing (33), and the first bearing (32) and second bearing (33) are located at first axle
Lid (28) and second bearing lid (29) are held close to mutual side, the first bearing (32) is close to the end of first bearing lid (28)
Face is provided with adjustment ring (34), and the corresponding position of first bearing (32) is provided with eye bolt bolt on the bearing housing (1)
(35), it is fixed with oil level indicator (36) in the bearing housing (1), the second plug (37) is provided in the oil level indicator (36), it is described
Oil level indicator (36) is located between first bearing (32) and second bearing (33), is provided on the bearing housing (1) and bearing housing (1)
The snorkel (38) of inside connection, the snorkel (38) is located at right over oil level indicator (37), and the snorkel (38) makes axis
It holds case (1) inside and oil level indicator (37) is communicated with air.
8. according to claim 1 or a kind of methanol feed pump of 3 or 5 or 7 any one of them, which is characterized in that the bearing housing
(1) label (39) is fixed with by screw on.
9. a kind of methanol feed pump according to claim 1, which is characterized in that the box coupling (8) include with from
The first shaft coupling (40) of moving axis (7) key connection, first shaft coupling (40) are connected with sleeve (41) end face by pin,
Elastic ring (42) is provided between the pin and the first shaft coupling (40), sleeve (41) other end is connected by screw
There is the second shaft coupling (43).
10. a kind of methanol feed pump according to claim 3, which is characterized in that the pump protecgulum (3), pump case (5) and leaf
The material of wheel (12) is ZGCr18Ni12Mo2Ti, main shaft (6), impeller locking nut (14), preceding wear ring (15), rear wear-resisting
Ring (16) and gland (18) are 0Cr18Ni12Mo2 stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096502.7A CN108343615A (en) | 2018-01-31 | 2018-01-31 | A kind of methanol feed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810096502.7A CN108343615A (en) | 2018-01-31 | 2018-01-31 | A kind of methanol feed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108343615A true CN108343615A (en) | 2018-07-31 |
Family
ID=62961774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810096502.7A Pending CN108343615A (en) | 2018-01-31 | 2018-01-31 | A kind of methanol feed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343615A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916068A (en) * | 2018-08-08 | 2018-11-30 | 陕西科技大学 | A kind of methanol feed pump |
| CN109026732A (en) * | 2018-08-08 | 2018-12-18 | 陕西科技大学 | A kind of methanol replenishment pump |
| CN109139541A (en) * | 2018-09-30 | 2019-01-04 | 陕西科技大学 | It is a kind of for conveying the liquid pump of condensed water |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109026732A (en) * | 2018-08-08 | 2018-12-18 | 陕西科技大学 | A kind of methanol replenishment pump |
| CN109139541A (en) * | 2018-09-30 | 2019-01-04 | 陕西科技大学 | It is a kind of for conveying the liquid pump of condensed water |
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Application publication date: 20180731 |