CN205190248U - Sterile -type centrifugal pump - Google Patents
Sterile -type centrifugal pump Download PDFInfo
- Publication number
- CN205190248U CN205190248U CN201521040728.3U CN201521040728U CN205190248U CN 205190248 U CN205190248 U CN 205190248U CN 201521040728 U CN201521040728 U CN 201521040728U CN 205190248 U CN205190248 U CN 205190248U
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- Prior art keywords
- pump
- ring
- end socket
- shaft
- pump shaft
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Abstract
The utility model discloses a sterile -type centrifugal pump, its technical scheme main points are sterile -type centrifugal pump, including pump case, motor, pump shaft, pump seat, interior head, impeller and outer head, interior head and outer head constitute the pump chamber, and interior head is equipped with the pump shaft and stretches out the mouth, the pump shaft from the pump seat through the title page first directly extend to the pump chamber in, the impeller is equipped with downwardly extending's cylindrical shaft cover, the impeller cup joints outside the pump shaft, is equipped with clamping ring, characterized by outside the pump shaft: interior head pump shaft stretch out the mouth and be equipped with the quiet ring around its export, one side that quiet ring is close to the rotating ring is equipped with the carborundum pad, one side that the rotating ring is close to quiet ring is equipped with the graphite pad, graphite pad and carborundum pad are contradicted, be equipped with the spring that promotes the rotating ring and be close to quiet ring between rotating ring and clamping ring. The carborundum pad was contradicted with the graphite pad and is rubbed when the rotating ring rotated, produced great wearing and tearing when having avoided both directly to contradict.
Description
Technical field
The utility model relates to a kind of centrifugal pump, and more particularly, it relates to a kind of sterile-type centrifugal pump.
Background technique
Centrifugal pump utilizes vane rotary and makes water generation centrifugal motion carry out work.Before activation, must make to be full of water in pump case and suction sleeve, then starting electrical machinery, make pump shaft impeller and water do high speed rotary motion, water generation centrifugal motion, is thrown toward impeller outer edge to water pump, and the runner through volute pump case flows into the setting-out pipeline of water pump.
The Chinese patent that the present inventor is 200920302244.X at application number discloses a kind of sterile-type centrifugal pump, it comprises motor, pump shaft, pump seat, interior end socket, impeller and outside head, impeller is provided with the cylinder-shaped sleeve to downward-extension, impeller set is connected on outside pump shaft, interior end socket is provided with the extending port of pump shaft, trim ring is provided with outside pump shaft, it is characterized in that: described interior end socket pump shaft extending port is provided with the stationary ring around its outlet, described trim ring is provided with rotating ring near interior end socket upper end, described rotating ring and described stationary ring seal slidably, seal ring is provided with between described rotating ring and impeller sleeve, described seal ring and described rotating ring interior sidewall surface, impeller sleeve outer side surface is close to sealing.
In working order, rotating ring is driven by pump shaft and rotates, and stationary ring geo-stationary, and rotating ring end face and stationary ring end face are directly conflicted in such scheme, under rotating ring high-speed motion, its end face and stationary ring produce larger relative wear, and cause larger impact to both radial stabilities.
Model utility content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of anti abrasive sterile-type centrifugal pump.
For achieving the above object, the utility model provides following technological scheme: a kind of sterile-type centrifugal pump, comprise pump case, motor, pump shaft, pump seat, interior end socket, impeller and outside head, interior end socket and outside head form pump chamber, interior end socket is provided with pump shaft extending port, pump shaft extends in pump chamber from pump seat by interior end socket, impeller is provided with the cylinder-shaped sleeve to downward-extension, impeller set is connected on outside pump shaft, trim ring is provided with outside pump shaft, described interior end socket pump shaft extending port is provided with the stationary ring around its outlet, and described stationary ring is provided with silicon carbide pad near the side of rotating ring; Described rotating ring is provided with graphite pads near the side of stationary ring; Described graphite pads and silicon carbide pad are conflicted, and be provided with and promote the spring of rotating ring near stationary ring between described rotating ring and trim ring.
Pass through technique scheme, when specific works, rotating ring is by pump shaft driven rotary, and stationary ring geo-stationary, graphite pads on rotating ring and the silicon carbide pad on stationary ring are conflicted, the stable chemical performance of silicon carbide, thermal conductivity is high, thermal expansion coefficient is little, wear-resisting property is good, can be anti-oxidant when high temperature, be applicable to the work requirements of technique scheme, when rotating ring rotates, silicon carbide pad and graphite pads are conflicted and are rubbed, avoid when both directly conflict and produce larger wearing and tearing, and achieve Multistage damping by graphite pads and silicon carbide pad, rotatory force is weakened by multistage, the vibrated effect of stationary ring and interior end socket reduces, improve structure stability, and reach good sealing.
The utility model is set to further: described stationary ring is provided with gas pressure relief slot near silicon carbide pad place.
Pass through technique scheme, due to the existence of gas pressure relief slot, make to leave certain air space between silicon carbide pad and stationary ring, therefore ensure that silicon carbide pad inner air and outer air pressure is consistent, avoid directly without the inside and outside pressure difference caused after space mounting, namely cannot pull down smoothly when dismantling silicon carbide pad, so during assemble carbon SiClx pad, just ensure that the convenience when later stage dismantles.
The utility model is set to further: the equal chamfering in the upper and lower both sides of described graphite pads.
By technique scheme, outside graphite pads, chamfering decreases edge sharpness, avoids scratching, and realizes its structural transition in addition smooth, also just avoids shape and to suddenly change the problem of stress concentration brought.
The utility model is set to further: described pump seat is provided with dustproof sheet.
By technique scheme, interior end socket outer wall covers and achieves inner dust-proof effect by dustproof sheet, pulls down dustproof sheet cleaning if desired, ensure that the clean of interior end socket outer wall.
The utility model is set to further: described trim ring is provided with the trim ring locking nut that itself and pump shaft are fixed.
By technique scheme, when assembling, trim ring is socketed on pump shaft, further radial direction installs trim ring locking nut, trim ring locking nut is conflicted through trim ring and pump shaft, forms trim ring fixing relative to pump shaft, avoids the pump shaft outer wall wearing and tearing that relative sliding causes.
The utility model is set to further: described outside head is provided with outside head screw, described pump case is provided with pump case bolt, described dustproof sheet is provided with dustproof sheet screw, described pump shaft is provided with axle sleeve screw, described impeller is provided with shaft seal, described shaft seal is provided with shaft seal seal ring, and described interior end socket is provided with interior end socket screw.
By technique scheme, demounting procedure comprises, and is 1. pulled down by outside head screw, outside head is being taken off.
2. pump case screw is pulled down, pump case is being taken off.
3. dustproof sheet screw is pulled down, dustproof sheet is being taken off.
4. with instrument, axle sleeve screw is fixed, shaft seal is pulled down, shaft seal seal ring is being taken off.
5. with instrument, axle sleeve screw is fixed, with wooden mallet or rubber hammer is counter strikes impeller blade, so that taken off by impeller.
6. interior end socket screw being pulled down, interior end socket is being taken off, the stationary ring on interior end socket being pulled down (noticing that this is left-hand thread) with tearing stationary ring spanner open.
7. rotating ring and spring are taken off, with inner hexagon spanner, trim ring is being pulled down.
Accompanying drawing explanation
Fig. 1 is the topology view of the utility model embodiment;
Fig. 2 is the explosive view of the utility model embodiment;
Fig. 3 is the partial view A of Fig. 1;
Fig. 4 is the partial view B of Fig. 3.
Reference character: 1, motor; 2, pump case; 3, interior end socket; 4, outside head; 5, impeller; 6, shaft seal; 7, shaft seal seal ring; 8, stationary ring seal ring; 9, seal ring of moving ring; 10, interior end socket seal ring; 11, outside head screw; 12, dustproof sheet; 13, dustproof sheet screw; 14, pump case screw; 15, pump pin; 16, interior end socket screw; 17, rotating ring; 18, spring; 19, trim ring; 20, axle sleeve screw; 21, trim ring locking nut; 22, stationary ring; 23, pump shaft; 24, graphite pads; 25, silicon carbide pad; 26, pump seat; 27, gas pressure relief slot.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model embodiment is described further.
A kind of sterile-type centrifugal pump, comprise pump case 2, motor 1, pump shaft 23, pump seat 26, interior end socket 3, impeller 5 and outside head 4, interior end socket 3 forms pump chamber with outside head 4, interior end socket 3 is provided with pump shaft 23 extending port, pump shaft 23 extends in pump chamber from pump seat 26 by interior end socket 3, impeller 5 is provided with the cylinder-shaped sleeve to downward-extension, impeller 5 is socketed in outside pump shaft 23, trim ring 19 is provided with outside pump shaft 23, interior end socket 3 pump shaft 23 extending port is provided with the stationary ring seal ring 8 around its outlet, stationary ring seal ring 8 is provided with the silicon carbide pad 25 fitted tightly with it, silicon carbide pad 25 is plugged in inside stationary ring seal ring 8, trim ring 19 is provided with near interior end socket 3 upper end the rotating ring 17 fitted tightly with it, and rotating ring 17 is provided with graphite pads 24, and graphite pads 24 is plugged in inside rotating ring 17, graphite pads 24 and silicon carbide pad 25 are conflicted, and rotating ring 17 is separated with stationary ring seal ring 8, is provided with and promotes the spring 18 of rotating ring 17 near stationary ring seal ring 8 between rotating ring 17 and trim ring 19, pass through technique scheme, when specific works, rotating ring 17 is by pump shaft 23 driven rotary, and stationary ring seal ring 8 geo-stationary, graphite pads 24 on rotating ring 17 is conflicted with the silicon carbide pad 25 on stationary ring seal ring 8, the stable chemical performance of silicon carbide, thermal conductivity is high, thermal expansion coefficient is little, wear-resisting property is good, can be anti-oxidant when high temperature, be applicable to the work requirements of technique scheme, when rotating ring 17 rotates, silicon carbide pad 25 and graphite pads 24 are conflicted and are rubbed, avoid when both directly conflict and produce larger wearing and tearing, and achieve Multistage damping by graphite pads 24 and silicon carbide pad 25, rotatory force is weakened by multistage, the vibrated effect of stationary ring seal ring 8 and interior end socket 3 reduces, improve structure stability, and reach good sealing.
Preferably, stationary ring seal ring 8 is provided with gas pressure relief slot 27 near silicon carbide pad 25 place; Pass through technique scheme, due to the existence of gas pressure relief slot 27, make to leave certain air space between silicon carbide pad 25 and stationary ring seal ring 8, therefore ensure that silicon carbide pad 25 inner air and outer air pressure is consistent, avoid directly without the inside and outside pressure difference caused after space mounting, namely cannot pull down smoothly when dismantling silicon carbide pad 25, so during assemble carbon SiClx pad 25, just ensure that the convenience when later stage dismantles.
Preferably, outside graphite pads 24, chamfering decreases edge sharpness, avoids scratching, and realizes its structural transition in addition smooth, also just avoids shape and to suddenly change the problem of stress concentration brought.
Preferably, pump seat 26 is provided with dustproof sheet 12; By technique scheme, interior end socket 3 outer wall covers and achieves inner dust-proof effect by dustproof sheet 12, pulls down dustproof sheet 12 if desired and cleans, and ensure that the clean of interior end socket 3 outer wall.
Preferably, trim ring 19 is provided with the trim ring locking nut 21 that itself and pump shaft 23 are fixed; Pass through technique scheme, when assembling, trim ring 19 is socketed on pump shaft 23, further radial direction installs trim ring locking nut 21, trim ring locking nut 21 is conflicted through trim ring 19 and pump shaft 23, form trim ring 19 fixing relative to pump shaft 23, avoid the pump shaft 23 outer wall wearing and tearing that relative sliding causes.
Preferably, outside head 4 is provided with outside head 4 screw, and pump case 2 is provided with pump case 2 bolt, dustproof sheet 12 is provided with dustproof sheet 12 screw 13, and pump shaft 23 is provided with axle sleeve screw 20, and impeller 5 is provided with shaft seal 6, shaft seal 6 is provided with shaft seal 6 seal ring 7, and interior end socket 3 is provided with interior end socket 3 screw; By technique scheme, achieve the separate repair effect of each part after each several part dismounting, all can overhaul in time for each fault Component, achieve and increase integrally-built working life.
Demounting procedure comprises, and is 1. pulled down by outside head 4 screw, outside head 4 is being taken off.2. pump case 2 screw is pulled down, pump case 2 is being taken off.3. dustproof sheet 12 screw 13 is pulled down, dustproof sheet 12 is being taken off.4. with instrument, axle sleeve screw 20 is fixed, shaft seal 6 is pulled down, shaft seal 6 seal ring 7 is being taken off.5. with instrument, axle sleeve screw 20 is fixed, with wooden mallet or rubber hammer is counter strikes impeller 5 blade, so that taken off by impeller 5.6. interior end socket 3 screw being pulled down, interior end socket 3 is being taken off, the stationary ring seal ring 8 on interior end socket 3 being pulled down (noticing that this is left-hand thread) with tearing stationary ring seal ring 8 spanner open.7. rotating ring 17 and spring 18 are taken off, with inner hexagon spanner, trim ring 19 is being pulled down.Installation steps and lime light comprise: 1. stationary ring seal ring 8 seal ring 8 and stationary ring seal ring 8 are loaded on interior end socket 3 and load (noticing that this is left-hand thread) with instrument.2. when trim ring 19 is installed, trim ring 19 back side and pillow block terrace about distance 10mm.3. (pump can be holded up convenient installation) spring 18 and rotating ring 17 being loaded onto successively with the first pressure testing of hand is reduced to mounting point, see and rotating ring 17 endoporus buckle can be allowed with the opening on trim ring 19 to overlap (just adjusting position as not all right trying), after examination is good, in dress, end socket 3 is noted not breaking stationary ring seal ring 8 sealing surface, interior end socket 3 is depressed into mounting point and adjusts angle, hand can not pine, then end socket 3 screw in locking.4. install rear attention trim ring 19 step surface and rotating ring 17 end distance about 2.5mm.(final effect is namely ensure that trim ring 19 can the drive rotating ring 17 of safety rotate, ensure again rotating ring 17 be not crushed to death do not have elasticity or elasticity too large) 5. other step install by demounting procedure.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a sterile-type centrifugal pump, comprise pump case, motor, pump shaft, pump seat, interior end socket, impeller and outside head, interior end socket and outside head form pump chamber, interior end socket is provided with pump shaft extending port, pump shaft extends in pump chamber from pump seat by interior end socket, impeller is provided with the cylinder-shaped sleeve to downward-extension, impeller set is connected on outside pump shaft, trim ring is provided with outside pump shaft, it is characterized in that: described interior end socket pump shaft extending port is provided with the stationary ring around its outlet, and described stationary ring is provided with silicon carbide pad near the side of rotating ring; Described rotating ring is provided with graphite pads near the side of stationary ring; Described graphite pads and silicon carbide pad are conflicted, and be provided with and promote the spring of rotating ring near stationary ring between described rotating ring and trim ring.
2. a kind of sterile-type centrifugal pump according to claim 1, is characterized in that: described stationary ring is provided with gas pressure relief slot near silicon carbide pad place.
3. a kind of sterile-type centrifugal pump according to claim 1, is characterized in that: the equal chamfering in the upper and lower both sides of described graphite pads.
4. a kind of sterile-type centrifugal pump according to claim 1, is characterized in that: described pump seat is provided with dustproof sheet.
5. a kind of sterile-type centrifugal pump according to claim 4, is characterized in that: described trim ring is provided with the trim ring locking nut that itself and pump shaft are fixed.
6. a kind of sterile-type centrifugal pump according to claim 5, it is characterized in that: described outside head is provided with outside head screw, described pump case is provided with pump case bolt, described dustproof sheet is provided with dustproof sheet screw, described pump shaft is provided with axle sleeve screw, described impeller is provided with shaft seal, and described shaft seal is provided with shaft seal seal ring, and described interior end socket is provided with interior end socket screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040728.3U CN205190248U (en) | 2015-12-14 | 2015-12-14 | Sterile -type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521040728.3U CN205190248U (en) | 2015-12-14 | 2015-12-14 | Sterile -type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190248U true CN205190248U (en) | 2016-04-27 |
Family
ID=55783244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521040728.3U Active CN205190248U (en) | 2015-12-14 | 2015-12-14 | Sterile -type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794977A (en) * | 2020-06-18 | 2020-10-20 | 杭州西子泵业有限公司 | Self-cleaning structure for mechanical seal of submersible sewage pump |
-
2015
- 2015-12-14 CN CN201521040728.3U patent/CN205190248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794977A (en) * | 2020-06-18 | 2020-10-20 | 杭州西子泵业有限公司 | Self-cleaning structure for mechanical seal of submersible sewage pump |
| CN111794977B (en) * | 2020-06-18 | 2021-06-22 | 杭州西子泵业有限公司 | Self-cleaning structure for mechanical seal of submersible sewage pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |