CN108488074A - A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature - Google Patents
A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature Download PDFInfo
- Publication number
- CN108488074A CN108488074A CN201810550359.4A CN201810550359A CN108488074A CN 108488074 A CN108488074 A CN 108488074A CN 201810550359 A CN201810550359 A CN 201810550359A CN 108488074 A CN108488074 A CN 108488074A
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- China
- Prior art keywords
- lining
- impeller
- pump
- axis
- driving side
- 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
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 34
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000001802 infusion Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 4
- 239000010962 carbon steel Substances 0.000 claims description 4
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011949 solid catalyst Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid 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
- F04D29/40—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
- F04D29/4266—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps made of sheet metal
-
- 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
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
Abstract
The present invention relates to a kind of high lift two-stage Full-lining oil slurry pumps of large high-temperature.Oil-slurry pump in the present invention, including axis and the pump cover and outer housing that are installed on axis, the pump cover and outer housing are affixed each other and surround enclosure cavity jointly, and one end of the close driving side of the outer housing is provided with dowel hole, is provided at the dowel hole and the matched positioning pin of pedestal；One end of the separate driving side of the outer housing is provided with guide frame.When oil-slurry pump is when conveying high-temp liquid, one end of the close driving side of outer housing is fixed, and one end of the separate driving side of outer housing is then under the guiding of guide frame to the direction free wxpansion far from driving side.The present invention is not only prevented may destroy because oil-slurry pump expands caused by driving mechanism; and the damage that also prevents outer housing and may suffer itself; the connection structure and sealing structure between each component in enclosure cavity are also protected simultaneously, it is ensured that the work that oil-slurry pump can be reliable and stable.
Description
Technical field
The invention belongs to slurry oil pump technical fields, more particularly to a kind of large-scale catalytic cracking, catalytic pyrolysis etc. of being suitable for contain
There is the high lift two-stage Full-lining oil slurry pump of the high temperature of solid catalyst particle.
Background technology
Oil-slurry pump is widely used in oil, chemical industry to convey the oil and chemical liquid of high temperature, since institute is defeated
The fluid temperature sent is higher, therefore the pump housing is not only needed to have good high temperature resistance, and also needs to have in conveying
Outstanding sealing performance cannot generate any leakage.However, the pump housing of existing oil-slurry pump is substantially all and is integrally fixed at pedestal
On, i.e. the pump housing of oil-slurry pump is difficult to free wxpansion by the constraint of pedestal.This pump housing is constrained and is difficult to free wxpansion
Structure not only increases the internal stress of the pump housing, and is adversely affected to the sealing structure of pump body, be easy to cause pump
Body damages and causes the generation of leakage phenomenon.
Invention content
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, provides a kind of high lift two-stage Full lining of large high-temperature
Oil-slurry pump, the structure design of this oil-slurry pump enable oil-slurry pump outer housing to the direction free wxpansion far from driving side, it is ensured that
Oil-slurry pump is not destroyed by external force, work that can be reliable and stable.
To achieve the above object, present invention employs following technical schemes：
A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature, including axis further include the pump cover being installed on axis and outer
Shell, the pump cover and outer housing are affixed each other and surround enclosure cavity jointly, one end of the close driving side of the outer housing
It is provided with dowel hole, is provided at the dowel hole and the matched positioning pin of pedestal；The separate driving of the outer housing
One end of side is provided with guide frame.
It is further preferred that being respectively equipped on the axle body at the shell cavity both ends that extend of the axis close to driving side support
Bearing assembly and separate driving side support bearing assembly, the axle body of the axis being located inside enclosure cavity are equipped with impeller sets
Part；The pump cover and, the outer housing and separate driving side support bearing affixed close to one end of driving side support bearing assembly
One end of component is affixed；The close driving side support bearing assembly is fixedly connected with axis, the separate driving side support bearing
Component is slidably matched with axis composition.
It is further preferred that being provided in the enclosure cavity and the matched liner assembly of impeller assembly, the lining
Component includes the sucking lining being arranged at impeller assembly suction inlet, further includes the pump housing lining being coated on the outside of impeller assembly,
Inner casing cavity is formed between the impeller assembly and pump housing lining；The sucking lining is set on axis, and sucks lining and institute
Pump cover is stated to be fixedly connected；The pump housing lining is fixedly connected with the pump cover；The pump housing lining is interior with the enclosure cavity
Driving side direction is being laterally away from equipped with gap close to driving between wall；The sucking lining and the pump housing lining with axis structure
At being slidably matched.
It is further preferred that the impeller assembly includes the first stage impeller being successively set on axis and secondary impeller；It is described
The suction inlet in the first stage impeller is arranged in sucking lining；The pump housing lining includes being fixed to one another to couple and respectively wrap
Overlay on the chopped-off head lining on the outside of first stage impeller and secondary impeller and secondary lining；The chopped-off head lining is fixed with the pump cover to be joined
It connects；The throat bushing for sealing is equipped between the sucking lining and secondary lining and axis.
Still more preferably, the impeller assembly further include the spiral that is arranged at the suction inlet of the first stage impeller into
Liquid component, the spiral feed liquor component, which is arranged, to be fixed on axis, the chopped-off head lining to spiral feed liquor component side extend and with
The spiral feed liquor component collectively forms feed liquor runner；It is equipped at the inlet of the spiral feed liquor component and along the circumferential direction arranges
Guide vane, the sucking lining towards guide vane side extend and collectively form drain runner with the guide vane.
Preferably, the first stage impeller and the inlet of secondary impeller away from one another, the first stage impeller and secondary impeller
Between be provided with axle sleeve between grade, the outer sheath of axle sleeve is equipped with interstage diaphragm, the interstage diaphragm and the grade countershaft between the grade
The throat bushing for sealing is equipped between set；The interstage diaphragm is fixedly connected with secondary lining；The chopped-off head lining, secondary lining
In enclose the infusion runner for being connected to first stage impeller output end and secondary impeller input terminal jointly with interstage diaphragm.
Preferably, the outer housing is carbon steel material, and the liner assembly is martensitic stain less steel material.
Preferably, the equipped at outlet port of output end of the infusion runner in first stage impeller is provided with the dilatation chamber of annular.
It is further preferred that the secondary lining includes the secondary liner shell being fixedly secured to one another and secondary lining lid
Plate, the secondary liner shell are fixedly connected with the chopped-off head lining and the interstage diaphragm；It is described secondary lining cover board with
The secondary liner shell, which matches, constitutes secondary impeller feed liquor runner, and secondary lining cover board and the secondary liner shell
Between be provided with secondary lining guide vane；The secondary liner shell includes outer casing and internal layer shell, the secondary lining shell
The transition runner of connection dilatation chamber and secondary impeller feed liquor runner is surrounded between the outer casing and internal layer shell of body；The secondary
The internal layer shell of liner shell is around the output end for being disposed around the secondary impeller.
Preferably, the inner wall of the throat bushing is provided with several cricoid grooves；Be laid in the interstage diaphragm with it is described
The low-pressure side of throat bushing between grade between axle sleeve is provided with cricoid cushion chamber.
The beneficial effects of the present invention are：
1), the present invention is provided with positioning pin and dowel hole in one end of the close driving side of the outer housing, and in institute
The one end for stating the separate driving side of outer housing is provided with guide frame.Thus when oil-slurry pump is when conveying high-temp liquid, outer housing
Close driving side one end it is fixed, and one end of the separate driving side of outer housing is then under the guiding of guide frame to remote
Direction free wxpansion from driving side.Therefore the present invention this restraining structure not only prevent because oil-slurry pump expands may be right
Destruction caused by driving mechanism, and the damage that also prevents outer housing itself and may suffer, while also protecting enclosure cavity
In each component between connection structure and sealing structure, it is ensured that the work that oil-slurry pump can be reliable and stable.
2), the present invention also makes the close driving side support bearing assembly and axis be fixedly connected, and makes described far from driving
Side support bearing assembly and axis composition are slidably matched, and to when axis is heated, axis will be to one end free wxpansion far from driving side.
In addition, the present invention is provided with and the matched liner assembly of impeller assembly, liner assembly in the enclosure cavity
In sucking lining and pump housing lining be slidably matched with axis composition, i.e., all parts in liner assembly are that one end is fixed on
On pump cover, the other end can be slided along the axle body of axis.
In summary, thermal expansion body independent of each other there are three being set altogether in the present invention, respectively：Outer housing, by impeller sets
Rotor arrangement, the liner assembly that part and axis are constituted.Three independent thermal expansion bodies are bolted in driving side, work
When, then all the uniformity for thermally expanding direction is realized towards non-drive side extension, wherein liner assembly and enclosure cavity is in axis
It is equipped with gap upwards, realizes the dissimilarity of swell increment, ensure that entire oil-slurry pump can reliablely and stablely be run.
3), the sucking lining in the present invention is fixed on pump cover, and the present invention is also set at the suction inlet of first stage impeller simultaneously
It is equipped with spiral feed liquor component, the feed liquor front end of spiral feed liquor component is provided with guide vane, spiral feed liquor component and chopped-off head lining
Enclose feed liquor runner；The sucking lining extends towards guide vane side and collectively forms drain stream with the guide vane
Road.The present invention can successfully guide the medium containing solid catalyst and enter leaf by the way that drain runner and feed liquor runner is arranged
In wheel assembly, it is not only able to reduce hydraulic loss, and hydraulic efficiency can be effectively improved.
4), the chopped-off head lining in the present invention and secondary lining are coated on the outside of impeller assembly, chopped-off head lining and secondary lining
In it is affixed each other and enclose between grade convey liquid inner casing cavity.By sucking the guiding of lining and the pump of impeller
It send, the material containing a large amount of catalyst grits is entered by enclosure cavity in inner casing cavity, and is only flowed in inner casing inside cavity.
Sucking lining, chopped-off head lining and secondary lining in the present invention are all made of martensitic stain less steel and cast, and hardness is high and wear-resisting
Property is good, and service life is long, ensure that the operation stably in a long term of oil-slurry pump；Correspondingly, the outer housing in the present invention is adopted
It is fabricated with the carbon steel material of casting and good mechanical property, outer housing primarily serves the effect of pressure-bearing.
5), the present invention is provided with dilatation chamber in the equipped at outlet port of the output end of first stage impeller, and as its name suggests, dilatation chamber has
Relatively certain volume effectively reduces so as to which the flow rate of liquid containing a large amount of catalyst grits lowers in advance
Liquid medium washes away first stage impeller root, improves the service life of first stage impeller.
6), the present invention is provided with throat bushing at each position being slidably matched, and the inner wall of the throat bushing is provided with more
Road radial direction circular groove, this multiple tracks radial direction circular groove are arranged successively along the axial direction of axis, to effectively increase the leakage flow of fluid
Local resistance, reduce the leakage phenomenon of medium.
In addition, the low-pressure side for being laid in the throat bushing between the interstage diaphragm and the grade between axle sleeve be provided with it is cricoid
Cushion chamber.The setting of cushion chamber further reduced the pressure into medium therein, to reduce the leakage of the medium between grade
Pressure.
Description of the drawings
Fig. 1 is the structural schematic diagram of this oil-slurry pump.
Fig. 2 is the close-up schematic view of Fig. 1.
Fig. 3,4 be secondary liner shell structural schematic diagram.
The meaning of label symbol is as follows in figure：
10-axis 20-pump cover, 30-outer housing, 31-dowel hole, 32-guide grooves
40-close to the separate driving side support bearing assembly of driving side support bearing assembly 50-
60-impeller assembly 61-spiral feed liquor component 611- guide vanes
Axle sleeve between 62-first stage impeller 63-secondary impeller, 64-grades
70-liner assembly 71-sucking lining 72- chopped-off heads 73- grade linings of lining
The 731- grade liner shell ring segments of 731a-first ring segment of 731b-second
731c-third ring segment 7311-open slot, 7312-exit passageway
733- grade lining guide vane of 732- grade lining cover board
74- interstage diaphragm 75- throat bushing 751- groove 752- cushion chambers
A-drain runner B-feed liquor runner C- infusion runners
C1-dilatation chamber C2- transition runner C3- secondary impeller feed liquor runners
D-arc-shaped through-hole
Specific implementation mode
For ease of understanding, the concrete structure of each component part in headlight module is further retouched below in conjunction with the accompanying drawings
It states.
As shown in Figure 1, 2, the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature, including axis 10, further include being installed in
Pump cover 20 on axis 10 and outer housing 30, the pump cover 20 and outer housing 30 are affixed each other and surround enclosure cavity jointly, described
One end of the close driving side of outer housing 30 is provided with dowel hole 31, is provided at the dowel hole 31 and is matched with pedestal
Positioning pin；One end of the separate driving side of the outer housing 30 is provided with guide frame.
As shown in Figure 1, outer housing 30 is placed on pedestal；Guide frame includes the guide groove being set on outer housing 30
32, outer housing 30 can be slidably matched by guide groove 32 with pedestal.
As shown in Figure 1, being respectively equipped on the axle body at the shell cavity both ends that extend of the axis 10 close to driving side support
Bearing assembly 40 and separate driving side support bearing assembly 50, the axle body of the axis 10 being located inside enclosure cavity are equipped with leaf
Wheel assembly 60；The pump cover 20 and, the outer housing 30 and separate drive affixed close to one end of driving side support bearing assembly 40
One end of dynamic side support bearing assembly 50 is affixed；The close driving side support bearing assembly 40 is fixedly connected with axis 10, described
It is slidably matched far from driving side support bearing assembly 50 and the composition of axis 10.
As shown in Figure 1, being provided in the enclosure cavity and 60 matched liner assembly 70 of impeller assembly, the lining
In component 70 include the sucking lining 71 that is arranged at 60 suction inlet of impeller assembly, further include being coated on 60 outside of impeller assembly
Pump housing lining forms inner casing cavity between the impeller assembly 60 and pump housing lining；The sucking lining 71 is set on axis 10,
And sucking lining 71 is fixedly connected with the pump cover 20；The pump housing lining is fixedly connected with the pump cover 20；The pump housing lining
In between the inner wall of the enclosure cavity close to driving be laterally away from driving side direction be equipped with gap；The sucking lining 71
It is slidably matched with the composition of axis 10 with the pump housing lining.
As shown in Figure 1, 2, the impeller assembly 60 includes first stage impeller 62 and the secondary impeller being successively set on axis 10
63；The suction inlet in the first stage impeller 61 is arranged in the sucking lining 71；The pump housing lining includes being fixed to one another connection simultaneously
Respectively it is coated on the chopped-off head lining 72 and secondary lining 73 in 63 outside of first stage impeller 62 and secondary impeller；The chopped-off head
Lining 72 is fixedly connected with the pump cover 20；It is equipped between the sucking lining 71 and secondary lining 73 and axis 10 for sealing
Throat bushing 75.
As shown in Figure 1, the impeller assembly 60 further include the spiral that is arranged at the suction inlet of the first stage impeller 62 into
Liquid component 61, the spiral feed liquor component 61, which is arranged, to be fixed on axis 10, and the chopped-off head lining 72 is to spiral feed liquor component 61 1
Side extends and collectively forms feed liquor runner B with the spiral feed liquor component 61；It is set at the inlet of the spiral feed liquor component 61
Have a guide vane 611 along the circumferential direction arranged, the sucking lining 71 extend towards 611 side of guide vane and with it is described
Guide vane 611 collectively forms drain runner A.
As shown in Figure 1, 2, the first stage impeller 62 and the inlet of secondary impeller 63 away from one another, i.e. 62 He of first stage impeller
Secondary impeller 63 is arranged back-to-back, can effectively balance the axial force of the two；The first stage impeller 62 and secondary impeller 63 it
Between be provided with axle sleeve 64 between grade, the outer sheath of axle sleeve 64 is equipped with interstage diaphragm 74 between the grade, the interstage diaphragm 74 with it is described
The throat bushing 75 for sealing is equipped between grade between axle sleeve 64；The interstage diaphragm 74 is fixedly connected with secondary lining 73；It is described
Chopped-off head lining 72, secondary lining 73 enclose jointly with interstage diaphragm 74 is connected to 62 output end of first stage impeller and secondary impeller 63 is defeated
Enter the infusion runner C at end.
Preferably, the outer housing 30 is carbon steel material, and the liner assembly 70 is martensitic stain less steel material.
As shown in Figure 1, the equipped at outlet port of output ends of the infusion runner C in first stage impeller 62 is provided with the dilatation of annular
Chamber C1.
As shown in Figure 1, the secondary lining 73 includes the secondary liner shell 731 being fixedly secured to one another and secondary lining
Cover board 732, the secondary liner shell 731 are fixedly connected with the chopped-off head lining 72 and the interstage diaphragm 74；Described time
Grade lining cover board 732 matches with the secondary liner shell 731 and constitutes secondary impeller feed liquor runner C3, and secondary lining cover board
Secondary lining guide vane 733, secondary impeller feed liquor runner C3 and secondary leaf are provided between 732 and the secondary liner shell 731
The input terminal connection of wheel 63；The secondary liner shell 731 includes outer casing and internal layer shell, the secondary liner shell
The transition runner C2 of connection dilatation chamber C1 and secondary impeller feed liquor runner C3 is surrounded between 731 outer casing and internal layer shell；
The internal layer shell of the secondary liner shell 731 is around the output end for being disposed around the secondary impeller 63, secondary liner shell 731
Outer casing and axis 10 between be provided with throat bushing 75.
As shown in Figure 3, Figure 4, portion annular in shape is made in the mode that monoblock cast can be used in the secondary liner shell 731
Point, by being divided into the first ring segment 731a, the second ring segment 731b and third ring segment 731c, first ring segment on the outside of lateral ring in ring
The open slot 7311 opposite with the output end of secondary impeller 63 is offered on the medial surface of 731a and runs through first ring segment
The exit passageway 7312 of 731a, the second ring segment 731b and third ring segment 731c.The open slot 7311 is along first ring segment
731a medial surfaces circumferentially extending arrangement and cross-sectional area by zero gradually increase, the big one end of 7311 cross-sectional area of the open slot with
The exit passageway 7312 is connected to.The side surface with open slot 7311 of the first ring segment 731a, that is, secondary lining
The internal layer shell of shell 731 flows out the channel of inner casing cavity using open slot 7311 and exit passageway 7312 as fluid.It is described to open
Mouth slot structure can greatly improve the working efficiency of pump for realizing the gradual pressure process of fluid.
As shown in figure 4, the second ring segment 731b upper edges axis 10 of the secondary liner shell 731 is axially arranged with several arcs
The arc-shaped through-hole D of shape through-hole D, the arc-shaped through-hole D in 731 circumferentially-spaced arrangement of the secondary liner shell, the present embodiment
7 are set as, it is parallel with the axial direction of axis 10 by the flow direction of the arc-shaped through-hole D transition runner C2 constituted.Institute in the present invention
It states transition runner C2 to be made of multiple arcs through-hole, the pressure that fluid enters in secondary impeller 21 can be suitably reduced, to keep away
Exempt to cause the pressure at 21 sealing of secondary impeller larger, has the function of protection sealing, prevents leakage.
The third ring segment 731c is located at the deflector in secondary 733 outside of lining guide vane by connecting, and forms the secondary
The outer casing of liner shell 731 is provided with throat bushing 75 between deflector and axis 10.
As shown in Fig. 2, the inner wall of each throat bushing 75 is both provided with several cricoid grooves 751；It is laid in described
The low-pressure side of throat bushing 75 between interstage diaphragm 74 and the grade between axle sleeve 64 is provided with cricoid cushion chamber 752.
Claims (10)
1. a kind of high lift two-stage Full-lining oil slurry pump of large high-temperature, including axis (10), further include the pump being installed on axis (10)
Cover (20) and outer housing (30), the pump cover (20) and outer housing (30) are affixed each other and surround enclosure cavity, feature jointly
It is：One end of the close driving side of the outer housing (30) is provided with dowel hole (31), is set at the dowel hole (31)
It is equipped with and the matched positioning pin of pedestal；One end of the separate driving side of the outer housing (30) is provided with guide frame.
2. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 1, it is characterised in that：The axis
(10) it is respectively equipped on the axle body at the shell cavity both ends that extend close to driving side support bearing assembly (40) and far from driving
The axle body of side support bearing assembly (50), the axis (10) being located inside enclosure cavity is equipped with impeller assembly (60)；It is described
Pump cover (20) and, the outer housing (30) and separate driving side support affixed close to one end of driving side support bearing assembly (40)
One end of bearing assembly (50) is affixed；The close driving side support bearing assembly (40) is fixedly connected with axis (10), described remote
It is slidably matched from driving side support bearing assembly (50) and axis (10) composition.
3. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 2, it is characterised in that：It is described outer
It is provided in shell cavity and impeller assembly (60) matched liner assembly (70), the liner assembly (70) includes being arranged in leaf
Sucking lining (71) at wheel assembly (60) suction inlet further includes the pump housing lining being coated on the outside of impeller assembly (60), described
Inner casing cavity is formed between impeller assembly (60) and pump housing lining；The sucking lining (71) is set on axis (10), and sucks
Lining (71) is fixedly connected with the pump cover (20)；The pump housing lining is fixedly connected with the pump cover (20)；The pump housing lining
In between the inner wall of the enclosure cavity close to driving be laterally away from driving side direction be equipped with gap；The sucking lining
(71) it is slidably matched with axis (10) composition with the pump housing lining.
4. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 3, it is characterised in that：The leaf
Wheel assembly (60) includes the first stage impeller (62) and secondary impeller (63) being successively set on axis (10)；The sucking lining (71)
Suction inlet in the first stage impeller (61) is set；The pump housing lining includes being fixed to one another to couple and be respectively coated on
Chopped-off head lining (72) on the outside of first stage impeller (62) and secondary impeller (63) and secondary lining (73)；The chopped-off head lining (72) with
The pump cover (20) is fixedly connected；It is equipped between the sucking lining (71) and secondary lining (73) and axis (10) for sealing
Throat bushing (75).
5. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 4, it is characterised in that：The leaf
Wheel assembly (60) further includes that spiral feed liquor component (61) at the suction inlet of the first stage impeller (62) is arranged, the spiral into
Liquid component (61), which is arranged, to be fixed on axis (10), the chopped-off head lining (72) to spiral feed liquor component (61) side extend and with institute
It states spiral feed liquor component (61) and collectively forms feed liquor runner (B)；It is equipped with along circle at the inlet of the spiral feed liquor component (61)
The guide vane (611) of circumferential direction arrangement, the sucking lining (71) extend towards guide vane (611) side and are led with described
Stream blade (611) collectively forms drain runner (A).
6. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 4, it is characterised in that：The head
Grade impeller (62) and the inlet of secondary impeller (63) away from one another, are set between the first stage impeller (62) and secondary impeller (63)
Be equipped with axle sleeve (64) between grade, the outer sheath of axle sleeve (64) is equipped with interstage diaphragm (74) between the grade, the interstage diaphragm (74) with
The throat bushing (75) for sealing is equipped between the grade between axle sleeve (64)；The interstage diaphragm (74) and secondary lining (73) are solid
Fixed connection；The chopped-off head lining (72), secondary lining (73) enclose with interstage diaphragm (74) and are connected to first stage impeller (62) jointly
The infusion runner (C) of output end and secondary impeller (63) input terminal.
7. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 3, it is characterised in that：It is described outer
Shell (30) is carbon steel material, and the liner assembly (70) is martensitic stain less steel material.
8. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 6, it is characterised in that：It is described defeated
Liquid stream road (C) is provided with the dilatation chamber (C1) of annular in the equipped at outlet port of the output end of first stage impeller (62).
9. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 8, it is characterised in that：Described time
Grade lining (73) includes the secondary liner shell (731) being fixedly secured to one another and secondary lining cover board (732), the secondary lining
In shell (731) be fixedly connected with the chopped-off head lining (72) and the interstage diaphragm (74)；The secondary lining cover board
(732) it is matched with the secondary liner shell (731) and constitutes secondary impeller feed liquor runner (C3), and secondary lining cover board
(732) it is provided with secondary lining guide vane (733) between the secondary liner shell (731)；The secondary liner shell (731)
Including outer casing and internal layer shell, connection is surrounded between the outer casing and internal layer shell of the secondary liner shell (731)
The transition runner (C2) of dilatation chamber (C1) and secondary impeller feed liquor runner (C3)；The inner layer case of the secondary liner shell (731)
Body is around the output end for being disposed around the secondary impeller (63).
10. the high lift two-stage Full-lining oil slurry pump of a kind of large high-temperature according to claim 6, it is characterised in that：It is described
The inner wall of throat bushing (75) is provided with several cricoid grooves (751)；It is laid in the interstage diaphragm (74) and the grade countershaft
The low-pressure side of throat bushing (75) between set (64) is provided with cricoid cushion chamber (752).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550359.4A CN108488074A (en) | 2018-05-31 | 2018-05-31 | A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550359.4A CN108488074A (en) | 2018-05-31 | 2018-05-31 | A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature |
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| CN108488074A true CN108488074A (en) | 2018-09-04 |
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ID=63350889
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|---|---|---|---|
| CN201810550359.4A Pending CN108488074A (en) | 2018-05-31 | 2018-05-31 | A kind of high lift two-stage Full-lining oil slurry pump of large high-temperature |
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| CN (1) | CN108488074A (en) |
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