CN108980110A - A kind of interior lining of abrasion resisting pump body - Google Patents
A kind of interior lining of abrasion resisting pump body Download PDFInfo
- Publication number
- CN108980110A CN108980110A CN201811035373.7A CN201811035373A CN108980110A CN 108980110 A CN108980110 A CN 108980110A CN 201811035373 A CN201811035373 A CN 201811035373A CN 108980110 A CN108980110 A CN 108980110A
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- China
- Prior art keywords
- liner
- apron plate
- sheath
- backplate
- rear backplate
- Prior art date
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- 238000005299 abrasion Methods 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 claims description 65
- 229920001971 elastomer Polymers 0.000 claims description 55
- 239000005060 rubber Substances 0.000 claims description 55
- 239000000919 ceramic Substances 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 16
- 239000007769 metal material Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 description 20
- 229910010293 ceramic material Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000006378 damage Effects 0.000 description 8
- 230000006837 decompression Effects 0.000 description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 241000219991 Lythraceae Species 0.000 description 1
- 241001503485 Mammuthus Species 0.000 description 1
- 235000014360 Punica granatum Nutrition 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 230000000699 topical effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
- F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
-
- 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
Abstract
The invention discloses serve as a contrast in a kind of abrasion resisting pump body, including surrounding the sheath of impeller radial space and positioned at the backplate of impeller axial sides, wherein the backplate positioned at suction eye side is apron plate, the backplate of the other side is rear backplate, the inner sidewall of the apron plate is equipped with apron plate liner, and the inner sidewall of the rear backplate is equipped with rear backplate liner；The radial dimension of the apron plate liner or rear backplate liner is 0.9-1.3 times of impeller diameter.Lining, clever structure in a kind of abrasion resisting pump body provided by the invention, be remarkably improved abrasion resisting pump uses lift, while the service life of pump housing wear-resistant liner can be improved, and reduces use cost.
Description
Technical field
The present invention relates to linings in rotary motive power pumping unit field more particularly to a kind of abrasion resisting pump body.
Background technique
In the industries such as ore dressing and smelting, some abrasive solid-liquid two-phase flows often are conveyed with centrifugal pump, this is often
Select Pulp pump.To reduce use cost, Pulp pump is often made into barrel insertpump, i.e., the pump housing is by detachable two layers of material of shell and liner
Material composition, shell is metal material, generallys use the lower-cost material manufacture such as gray iron, spheroidal graphite cast-iron；Liner is using wear-resisting
Material manufacture, common wear-resistant material have a Cr26, the antifriction alloys such as Cr15Mo3, also have using rubber, wherein rubber applications in
Manufacture Pulp pump liner and have 100 years or so history, Fig. 8 is a kind of cross-sectional view of typical rubber wear-resistant liner, wear-resistant liner by
The preceding liner 100 ' and rear liner 200 ' of rubber material form.Since rubber is cheap and there have to be fabulous elastic and resistance to well
Performance is ground, thus by wide application, especially in the ball milling for having bulky grain (generally referring to granularity in the particle of 1-10mm)
Machine ore discharge slurry conveying etc. is widely used；But the shortcomings that rubber lined pump, is also fairly obvious, be exactly rubber scratch resistance it is poor
It is poor with high speed performance, so-called scratch resistance can difference refer to when the hardness of ore is higher or when particle has sharp corner angle, Yi Zao
It is scraped off and falls off at rubber material, greatly shorten its service life, so-called high speed performance difference refers to the peripheral velocity i.e. when impeller
More than (rubber is usually 30m/s or so) after a certain critical value, the rate of wear of flow passage part, which will appear, sharply to be increased.Due to impeller
Linear velocity limited by critical flow velocity, cause rubber lined pump to cannot be used for the operating condition of high lift, general its does not surpass using lift
Cross 40 meters.
Ceramic material has good high speed performance and scratch resistance, but forming difficulty, is not easy to be made into complex-shaped pump
Body.With the raising of ceramic technology, the Pulp pump that there is now part abrasion-proof ceramic lining has been applied；But applying is having
The effect is unsatisfactory for the operating condition of bulky grain, simultaneously because its higher cost, the generally existing problem lower in cost performance in.
In conclusion the problems such as interior lining of the abrasion resisting pump body of the prior art is short there are the service life, higher operating costs.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to the above-mentioned deficiency of the prior art, a kind of clever structure is provided, can be shown
Write raising abrasion resisting pump uses lift, while the service life of pump housing wear-resistant liner can be improved, and reduces use cost.
Technical proposal that the invention solves the above-mentioned problems is: a kind of interior lining of abrasion resisting pump body, including surrounds impeller radial space
Sheath and backplate positioned at impeller axial sides, wherein the backplate for being located at suction eye side is apron plate, the shield of the other side
Plate is rear backplate, and the inner sidewall of the apron plate is equipped with apron plate liner, and the inner sidewall of the rear backplate is equipped with rear backplate
Liner；The radial dimension of the apron plate liner or rear backplate liner is 0.9-1.3 times of impeller diameter.
As a further improvement of the present invention, the making material of the sheath is rubber；The system of the apron plate liner
Making material is wear-resistant ceramic or composite abrasion resistance material；The making material of the rear backplate liner is rubber, wear-resistant ceramic or compound
Wear-resistant material.
As a further improvement of the present invention, the lateral wall of the apron plate is equipped with apron plate skeleton, protects after described
The lateral wall of plate is equipped with rear backplate skeleton.
As a further improvement of the present invention, the apron plate and preceding sheath are split type structure, in the apron plate
The apron plate skeleton of metal material is bonded on the outside of lining；The making material of the apron plate liner is composite abrasion resistance material.
As a further improvement of the present invention, the rear backplate and rear sheath are split type structure, in the rear backplate
The rear backplate skeleton of metal material is bonded on the outside of lining；The making material of the rear backplate liner is composite abrasion resistance material.
As a further improvement of the present invention, the first buffering is provided between the apron plate liner and apron plate skeleton
Layer；
Alternatively, being provided with second buffer layer between the rear backplate liner and rear backplate skeleton；
Alternatively, be provided with first buffer layer between the apron plate liner and apron plate skeleton, the rear backplate liner with
Second buffer layer is provided between rear backplate skeleton；
The material of the first buffer layer and second buffer layer is rubber, polyurethane or composite abrasion resistance material.
As a further improvement of the present invention, the sheath includes the preceding sheath and rear sheath of opposite connection setting, institute
State the outwardly extending sealing lip of joint face being provided on preceding sheath and rear sheath along the two.
As a further improvement of the present invention, the preceding sheath is radially extended to the axis projection of apron plate liner
Interior, the apron plate liner bonds together with preceding sheath.
As a further improvement of the present invention, the rear sheath is radially extended to the axis projection of rear backplate liner
Interior, the rear backplate liner bonds together with rear sheath.
As a further improvement of the present invention, the apron plate liner or rear backplate liner are with a thickness of 10-60mm's
The annular that one piece of ring-shaped pottery block or muti-piece sector ceramic block are put together, the ceramic block are that gluing of surfaces has made coarse processing
Ceramic block.
Beneficial effect
Compared with prior art, in a kind of abrasion resisting pump body of the invention the advantages of lining are as follows:
1, under certain operating conditions, liner is formed using the sheath of rubber material and the apron plate or rear backplate of ceramic material,
Good effect, such as the abrasion to apron plate or rear backplate based on scratching can be obtained, can be mentioned using ceramic material
The lift of height pump, can also improve the bulk life time of liner, for another example the rubber material cheap by reasonable topical application, can be with
It reduces the whole manufacturing cost served as a contrast in abrasion resisting pump body or improves the cost performance served as a contrast in abrasion resisting pump body；
2, the radial dimension of the apron plate liner or rear backplate of ceramic material or complex abrasion-proof material is impeller diameter
At 0.9-1.3 times, apron plate liner or rear backplate liner can make it easier to manufacture and assemble, while can for simple annular
To reduce manufacturing cost；
3, separately manufactured preceding sheath and rear sheath are conducive to the assembly of the mold in manufacturing process and split out, and seal lip
The sealing problem that can solve between preceding sheath and rear sheath is set；
4, due to there is preferable adhesive property between rubber material and ceramic material, by preceding sheath or the rubber material of rear sheath
Matter extends within the axis projection of backplate, and apron plate liner or rear backplate liner are bonded in the radial direction of preceding sheath or rear sheath
Apron plate liner or rear backplate liner relatively reliable can be bonded by this structure of extending part, simultaneously as the buffering of rubber
Effect, is beneficial to prevent apron plate liner or rear backplate liner is hit and ruptures；Another effect is, once ceramic material
Because certain reason is broken or comes off, rubber material can still work on one section the apron plate liner or rear backplate liner of matter
Time；
5, sheath and backplate are adopted a split structure, frame board at this moment is set in the outside of apron plate or rear backplate, just
Apron plate liner or rear backplate liner can be fixed on apron plate skeleton or rear backplate skeleton, pass through fixed apron plate skeleton
Or rear backplate skeleton realizes the positioning of apron plate liner or rear backplate liner；
6, between apron plate liner and apron plate skeleton, or buffering is set between rear backplate liner and rear backplate liner
Layer, the material of buffer layer are rubber, polyurethane or composite abrasion resistance material, and there are two purposes for this design, one is utilizing buffering
Layer absorbs apron plate liner or rear backplate liner by the energy impacted, makes the apron plate liner or rear backplate liner of ceramic material
It is non-breakable, once the second is the apron plate liner or rear backplate liner of ceramic material are de- because of certain reason generation rupture or part
When falling, there is the buffer layer of certain abrasive resistance that can resist fluid scouring, to extend the service life of pump housing wear-resistant liner；
7, the sealing of abrasion resisting pump is relatively difficult to solve, therefore is frequently necessary to setting accessory impeller or mechanical seal, in rear backplate
Outside, be provided with and depressurize lid, stuffing box or mechanical seal case cooperation sealing surface, can solve the peace of these seal members
Dress problem；
8, the apron plate liner of ceramic material or rear backplate liner easily lead to ceramic rupture axial thickness is too thin, too thick
Manufacturing cost can be obviously increased again, by the thickness of apron plate liner or rear backplate liner select in 10-60mm, can take into account this two
A aspect；
9, to serving as a contrast in mammoth pump body, the apron plate liner of ceramic material or the outer dimension of rear backplate liner are larger, not only
Manufacture difficulty is big, and is easy to happen rupture in use, by apron plate liner or rear backplate liner by muti-piece sector potsherd
It is composed, can not only reduce the manufacture difficulty of apron plate liner or rear backplate liner, and it can be reduced and ruptured
Probability.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the cross-sectional view of the embodiment of the present invention 1；
Fig. 2 is the cross-sectional view of the embodiment of the present invention 2；
Fig. 3 is the cross-sectional view of the embodiment of the present invention 3；
Fig. 4 is the cross-sectional view of the embodiment of the present invention 4；
Fig. 5 is the cross-sectional view of the embodiment of the present invention 5；
Fig. 6 is the schematic diagram of the angle of shock；
Fig. 7 is the particle schematic diagram that movement velocity is decomposed in pumping；
Fig. 8 is the structural schematic diagram of typical rubber wear-resistant liner；
Fig. 9 is the comparison diagram that ceramic-lined and rubber liner makees wear-resisting comparative test.
Specific embodiment
The embodiment of the present invention is described referring now to the drawings.
By largely analyzing and studying, it has been found that it is served as a contrast under different operating conditions in abrasion resisting pump body, different positions
The rate of wear and abrasive manner are that there were significant differences；This is related to a concept --- angle of shock α, as shown in Fig. 6, impact
The numerical value of angle α is between 0 ° -90 °, and when the particle in medium impacts pump housing liner with arrow direction, angle of attack α has been determined
Its abrasion form to liner, when α is smaller (typically less than 15 °), the wear form of pump housing liner is mainly frictionally damage,
Scuffing is its major way；(it will be generally above 35 °) when α is larger, the key wear form of pump housing liner is impact injury.Figure
7 show hodograph of the particle from particle after impeller outlet outflow, and in Fig. 7, w is the speed that medium flows out 500 runner of impeller,
U is the linear velocity that medium is rotated with impeller, and v is the superimposed speed of above-mentioned two speed, as can be seen from Figure 7, in the design work of pump
Under condition, the velocity component v of the relatively preceding sheath 100 of particle is significantly less than the linear velocity u of 500 outer of impeller, while granule impact protects
The angle [alpha] 1 of set is also larger, and generally between 30-60 °, this is that is, in normal conditions, speed of the particle with respect to sheath
It is significantly less than speed of the particle with respect to backplate.Therefore, the abrasive manner of sheath and backplate difference is: the abrasion of backplate is to scratch
Based on frictionally damage, and the abrasion of sheath be with impact based on impact injury.
(1) our research is also shown that rubber material and ceramic material for the resistivity of frictionally damage and impact injury
Difference be it is very big, Fig. 9, which is us, makees several groups of knots of wear-resisting comparative test by the ceramic-lined and rubber liner that test obtains
Fruit, by the analysis to this several groups of results, we are it can be concluded that the basic law that ceramic-lined and rubber liner is worn.From Fig. 9
It can be seen that, on the one hand, rubber material is significantly lower than ceramic material for the resistivity of the frictionally damage based on scratching, when
When the central diameter granularity of medium is 0.1mm, after the lift of elastomeric pump reaches 40 meters, the rate of wear of backplate is significantly improved；And it is ceramic
Backplate only has sharply to be shortened when the lift of pump reaches 60 meters or so and just will appear the service life；On the other hand, with the increase of particle, rubber
Plastic boot is much higher than ceramic sheath for the resistivity of impact injury based on impacting, such as operating condition 4, when lift is 30m,
When the central diameter grain particles of medium are 0.1mm or so, the service life of ceramic sheath is 2 times of the rubber sheath service life or so, works as medium
Central diameter granularity when reaching 0.5mm or so, the service life of ceramic sheath only has the 95% of rubber sheath, and when central diameter granularity reaches
When 2mm or so, the service life of ceramic sheath only only has the service life 39.6% of rubber sheath.
From figure 7 it can be seen that medium from its directional velocity after impeller outlet outflow far from impeller and backplate, due to
The specific gravity of grain is significantly greater than the specific gravity of water, and particle can be assembled to sheath position under the influence of centrifugal force, especially bulky grain,
The overwhelming majority can be discharged after impacting sheath from the outlet of pump, and only part little particle returns to impeller and shield with the flowing of liquid
Between plate, this can explain why the ceramic-lined jacket portions rate of wear much faster compared with backplate position.
By experiment above and result of study it can be found that whether in single rubber liner or single ceramics
Lining, is not able to satisfy the requirement of many complex working conditions, such as under the operating condition for having bulky grain, is not suitable for the shield using ceramic material
(because of ceramic sheath, not only cost is much higher than rubber sheath to set, and the former is in service life under conditions of under operating condition 5 and operating condition 6
Lower than the latter), for another example under high lift operating condition, the rubber apron plate service life is too short, is unable to maintain that production just sometimes or even at all
Often carry out.
Embodiment 1
As shown in Figure 1, pump housing wear-resistant liner includes the preceding sheath 100 of rubber material, rear sheath 200, silicon carbide ceramics material
The apron plate liner 101 of matter, the rear backplate liner 201 of aluminium oxide ceramics material, metal material apron plate skeleton 102, metal
The rear backplate skeleton 202 of material, suction inlet 300 are arranged on apron plate, are provided with and are used on preceding sheath 100 and rear sheath 200
The lip 400 of sealing, the rubber material of preceding sheath 100 radially extend in the axis projection of apron plate liner 101 and and before
Casing liner 101 is bonded integrally, and the rubber material of rear sheath 200 is radially extended to the axis projection of rear backplate liner 201
It is interior and be bonded integrally with rear backplate liner 201, be provided in rear backplate for decompression lid or the sealing cooperation of machine joint sealing
Sealing plane 204, the material of sealing plane 204 are rubber, and in the present embodiment, apron plate liner 101 and rear backplate liner 201 are equal
The annular slab for being 15mm for average thickness, outer diameter 390mm are 0.98 times of impeller diameter 395mm.
The operating condition that the present embodiment is suitable for having 1-10mm larger particles, is also applied for the higher operating condition of lift 40m-60m, phase
For the prior art of full rubber liner, full embodiment can be applied to higher lift, relative to complete ceramic-lined existing
Technology, the present embodiment not only has lower cost, also preferably for there is coarse grained operating condition.
Embodiment 2
As shown in Fig. 2, pump housing wear-resistant liner includes the preceding sheath 100 of rubber material, rear sheath 200, silicon carbide material
Apron plate liner 101, apron plate skeleton 102, rear backplate skeleton 202 are metal material, and suction inlet 300 is arranged on apron plate,
The rubber material of preceding sheath 100 is radially extended in the axis projection of apron plate liner 101 and and the bonding of apron plate liner 101
Integrally, rear sheath 200 and rear backplate liner 201 are manufactured into one, are all made of rubber manufacture, are arranged in rear backplate useful
In the sealing plane 204 with decompression lid or the cooperation of mechanical seal case, the material of sealing plane 204 is rubber.
The work that the present embodiment is suitable for having larger particles and decompression lid or mechanical seal case side have biggish clear water amount to inject
The slurry of condition, such 201 side of rear backplate liner can be diluted by clear water, and particle is less, to make rubber rear backplate liner 201 can also
To obtain longer service life.
Embodiment 3
As shown in figure 3, pump housing wear-resistant liner includes the preceding sheath 100 of rubber material, rear sheath 200, silicon carbide material
Apron plate liner 101, apron plate skeleton 102, the rear backplate skeleton 202 of metal material, suction inlet 300 are arranged on apron plate,
Apron plate and preceding sheath 100 are split type structure, are arranged between apron plate liner 101 and the apron plate skeleton 102 of metal material
There is a first buffer layer 103, apron plate liner 101, first buffer layer 103 and apron plate skeleton 102 are glued at an entirety, and
Rubber, polyurethane or composite abrasion resistance material can be used in the material of one buffer layer 103, and rear backplate liner 201 is wear-resisting composite,
The rubber material of sheath 200 is radially extended to the axis projection of rear backplate liner 201 afterwards, is provided with and is used in rear backplate
With the plane 204 of decompression lid or the sealing cooperation of mechanical seal case, the material of sealing plane 204 is rubber, apron plate and preceding sheath
Cooperate between 100 for taper hole, apron plate liner 101 and rear backplate liner 201 with a thickness of 20mm, outer diameter 430mm, be impeller
1.13 times of diameter 380mm.
The present embodiment is suitable for the operating condition that medium has 1-2mm medium grain, is also suitable for the higher work of lift 40m-60m
Condition, the prior art of relatively full rubber liner, the present embodiment can be applied to higher lift, show relative to entirely ceramic-lined
There is technology, the present embodiment has lower cost.
Embodiment 4
As shown in figure 4, pump housing wear-resistant liner includes the preceding sheath 100 of rubber material, rear sheath 200, silicon carbide material
Apron plate liner 101 and rear backplate liner 201, the apron plate skeleton 102 and rear backplate bone of metal material add 202, suction inlet 300
It is arranged on apron plate；Apron plate and preceding sheath 100 are split type structure, and rear backplate and rear sheath 200 are split type structure, preceding
First buffer layer 103 is provided between casing liner 101 and the apron plate skeleton 102 of metal material, rear backplate liner 201 is with after
Be provided with second buffer layer 203 between guard plate framework 202, the material of first buffer layer 103 and second buffer layer 203 be rubber,
Polyurethane or composite abrasion resistance material are provided with flat for the sealing with decompression lid or the sealing cooperation of mechanical seal case in rear backplate
The outer in face 204, sealing plane 204 is arranged on rear backplate liner 201, and the interior of sealing plane 204 is buffered along setting second
On layer 203, cooperate between apron plate and preceding sheath 100 for taper hole, cooperates between rear backplate and rear sheath 200 for taper hole, this reality
It applies in example, apron plate liner 101 and rear backplate liner 201 are that the fan-shaped ceramic wafer that 6 pieces of average thickness are 20mm is put together
Annular, diameter 630mm is 1.18 times of impeller diameter 530mm, for the bonding reliability for improving ceramic wafer, ceramic wafer
Bonding plane has made rough surface processing.
The present embodiment is suitable for the coarse granule operating condition of particle diameter 1-10mm, is also suitable for the higher work of lift 40-60m
Condition, the relatively single rubber liner pump housing, the present embodiment can be applied under higher lift, relative to single ceramic-lined
The pump housing, the present embodiment have better anti-coarse granule impact property, while more cost advantage.
Embodiment 5
As shown in figure 5, pump housing wear-resistant liner includes the preceding sheath 100 of rubber material, rear sheath 200, apron plate is by preceding shield
Plate liner 101 and apron plate skeleton 102 form, and rear backplate is made of rear backplate liner 201 and rear backplate skeleton 202, apron plate
The material of liner 101 and rear backplate liner 201 is composite abrasion resistance material, and the composite abrasion resistance material main ingredient is abrasion resistant particles
And resin adhesive, the abrasion resistant particles include silicon carbide, silicon nitride, corundum, pomegranate factory, one kind of zirconium oxide or its any group
It closes, resin adhesive can be vinylite；The sealing plane for covering sealing cooperation with decompression is provided in rear backplate
204；The outer of sealing plane 204 is arranged on the metal material of rear backplate skeleton 202, and interior edge is arranged in rear backplate liner 201
Composite abrasion resistance material on；Cooperate between apron plate and preceding sheath 100 for taper hole, is taper hole between rear backplate and rear sheath 200
Cooperation；Apron plate liner 101 and the equal diameter of rear backplate liner are 630mm, are 1.26 times of impeller diameter 500mm.
The present embodiment is suitable for the fine grained of particle diameter 0.1mm or so, the higher operating condition of lift 40-60m, the present embodiment
In the case where increased costs are few, the lift of pump can be significantly improved, the sexual valence of product is relatively high.
Combining most preferred embodiment above, invention has been described, but the invention is not limited to implementations disclosed above
Example, and various modifications, equivalent combinations according to the essence of the present invention should be covered.
Claims (10)
1. lining in a kind of abrasion resisting pump body, including surrounding the sheath of impeller radial space and positioned at the backplate of impeller axial sides,
In to be located at the backplate of suction eye side be apron plate, the backplate of the other side is rear backplate, it is characterized in that: the apron plate is interior
Side wall is equipped with apron plate liner (101), and the inner sidewall of the rear backplate is equipped with rear backplate liner (201)；The apron plate
The radial dimension of liner (101) or rear backplate liner (201) is 0.9-1.3 times of impeller diameter.
2. lining in a kind of abrasion resisting pump body according to claim 1, it is characterised in that: the making material of the sheath is rubber
Glue；The making material of the apron plate liner (101) is wear-resistant ceramic or composite abrasion resistance material；The rear backplate liner (201)
Making material be rubber, wear-resistant ceramic or composite abrasion resistance material.
3. lining in a kind of abrasion resisting pump body according to claim 2, it is characterised in that: the lateral wall of the apron plate is equipped with
The lateral wall of apron plate skeleton (102), the rear backplate is equipped with rear backplate skeleton (202).
4. lining in a kind of abrasion resisting pump body according to claim 3, it is characterised in that: the apron plate and preceding sheath (100)
For split type structure, the apron plate skeleton (102) of metal material is bonded on the outside of the apron plate liner (101)；Before described
The making material of casing liner (101) is composite abrasion resistance material.
5. lining in a kind of abrasion resisting pump body according to claim 3 or 4, it is characterised in that: the rear backplate and rear sheath
(200) it is split type structure, the rear backplate skeleton (202) of metal material is bonded on the outside of the rear backplate liner (201)；Institute
The making material for stating rear backplate liner (201) is composite abrasion resistance material.
6. according to being served as a contrast in a kind of abrasion resisting pump body described in power 4 or power 5, it is characterised in that: the apron plate liner (101) and preceding shield
First buffer layer (103) are provided between framework (102)；
Alternatively, being provided with second buffer layer (203) between the rear backplate liner (201) and rear backplate skeleton (202)；
Alternatively, first buffer layer (103) are provided between the apron plate liner (101) and apron plate skeleton (102), after described
Second buffer layer (203) are provided between casing liner (201) and rear backplate skeleton (202)；
The material of the first buffer layer (103) and second buffer layer (203) is rubber, polyurethane or composite abrasion resistance material.
7. lining in a kind of abrasion resisting pump body according to claim 1, it is characterised in that: the sheath includes opposite connection setting
Preceding sheath (100) and rear sheath (200), be provided on the preceding sheath (100) and rear sheath (200) along both joint face
Outwardly extending sealing lip (400).
8. lining in a kind of abrasion resisting pump body according to claim 7, which is characterized in that the preceding sheath (100) is radially prolonged
In the axis projection for extending to apron plate liner (101), the apron plate liner (101) bonds together with preceding sheath (100).
9. lining in a kind of abrasion resisting pump body according to claim 7 or 8, which is characterized in that the rear sheath (200) is radially
It extends in the axis projection of rear backplate liner (201), the rear backplate liner (201) bonds together with rear sheath (200).
10. lining in a kind of abrasion resisting pump body according to claim 1, which is characterized in that the apron plate liner (101) or after
Casing liner (201) is the annular being put together with a thickness of the one piece of ring-shaped pottery block or muti-piece sector ceramic block of 10-60mm, institute
Stating ceramic block is the ceramic block that gluing of surfaces has made coarse processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035373.7A CN108980110A (en) | 2018-09-06 | 2018-09-06 | A kind of interior lining of abrasion resisting pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035373.7A CN108980110A (en) | 2018-09-06 | 2018-09-06 | A kind of interior lining of abrasion resisting pump body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980110A true CN108980110A (en) | 2018-12-11 |
Family
ID=64545789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811035373.7A Pending CN108980110A (en) | 2018-09-06 | 2018-09-06 | A kind of interior lining of abrasion resisting pump body |
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| Country | Link |
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| CN (1) | CN108980110A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021109625A1 (en) * | 2019-12-06 | 2021-06-10 | 广州市拓道新材料科技有限公司 | Ceramic pump body |
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