CN2382862Y - Safety gas sealed multi stage under liquid pump - Google Patents
Safety gas sealed multi stage under liquid pump Download PDFInfo
- Publication number
- CN2382862Y CN2382862Y CN 99224787 CN99224787U CN2382862Y CN 2382862 Y CN2382862 Y CN 2382862Y CN 99224787 CN99224787 CN 99224787 CN 99224787 U CN99224787 U CN 99224787U CN 2382862 Y CN2382862 Y CN 2382862Y
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- main shaft
- pump housing
- oil
- hole
- oil cylinder
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Abstract
The utility model relates to a safe gas sealed multi-stage submerged pump. The utility model is characterized in that a main shaft in a shaft hole of a sealed body is provided with a corrosion resisting sheath connected with the main shaft; the main shaft in a shaft hole of a slide bearing is provided with an abrasion resisting sheath connected with the main shaft; the upper part of the main shaft is provided with an automatic lubricating oil inner circulating mechanism which comprises an oil cylinder, a press cover, and a shaft sleeve; a pump body on the upper part of a branch pipe is provided with a labyrinth seal structure; the lower end of the pump body is provided with a flow steadying grid which comprises a baffle plate, a connecting ring, and a flow guiding plate. The main shaft of the utility model can not be corroded and abraded easily. The service life of bearings is extended. The utility model can realize pressure keep with flow restraining when the conveying pressure of media is too high. The utility model can reduce the lowest use liquid level simultaneously.
Description
The utility model relates to a kind of pump, particularly Under Water Pumps.
Be used for chemical industry at present and carry the Under Water Pumps kind of various liquid such as inflammable, explosive, hypertoxic, volatile a lot, wherein its main structure of the multi-level submerged pump of commonplace application is: pump housing upper end is an electric machine support, in establish lubricating structure.The electric machine support lower end is provided with seal diaphragm, is the sealed case of the pump housing below it, is provided with flange seat on the outer pump housing of sealed case bottom, establishes seal in it.Be provided with sliding bearing and conveyance fluid selflubricating cooling and wiper mechanism in the pump housing between flange seat and output arm.Be positioned at the main shaft at pump housing center, its upper end can link to each other with the motor on the electric machine support, and the bottom links to each other with multi-stage impeller.On the pump housing on multi-stage impeller top, be provided with the output arm that extends upward and exceed flange seat.Its deficiency is that difficulty is repaired in the local perishable wearing and tearing of main shaft, and the oil lubrication effect is undesirable, and the current-limiting apparatus practicability is not good enough, and the suction side minimum liquid level requires too high.
The purpose of this utility model is to provide a kind of high lubricating effect of main shaft corrosion and wearing and tearing that prevents can effectively seal the safe gas sealing multistage hydraulic pump of pressurize.
The purpose of this utility model can realize by following measure: a kind of safe gas sealing multi-level submerged pump, its pump housing upper end is an electric machine support, in establish lubricating structure, the electric machine support lower end is provided with seal diaphragm, it below it sealed case of the pump housing, on the outer pump housing of sealed case bottom, be provided with flange seat, establish seal in it, be provided with sliding bearing and conveyance fluid selflubricating cooling and wiper mechanism in the pump housing between flange seat and output arm, its upper end of main shaft that is positioned at pump housing center can link to each other with the motor on the electric machine support, the bottom links to each other with multi-stage impeller, on the pump housing on multi-stage impeller top, be provided with the output arm that extends upward and exceed flange seat, it is characterized in that:
Be provided with the anticorrosion sheath that is attached thereto on a, the main shaft in the stuffing box packing of seal axis hole,
Be provided with the abrasionproof sheath that is attached thereto on b, the main shaft in the sliding bearing axis hole.It has the oil cylinder that is located on the interior supporting element of the pump housing the automatically interior cycling mechanism of lubricant oil, its have madial wall outside that main shaft passes and top be provided with main shaft tighten together above the axle sleeve of pressure ring and adjustment nut is arranged, shrink to the oil pocket madial wall lower end of this axle sleeve cavity, in axle sleeve, be provided with oil guiding hole, its lower ending opening upper end open that is connected with cavity under the axle sleeve is positioned at bearing top, the bearing that is located at oil cylinder upper shed and shaft room is by bearing pressure ring and fastening piece location, the oil cylinder gland that center hole has main shaft to pass also is provided with an end and is communicated with the oil circuit that the other end links to each other with oil filler pipe with the oil cylinder upper shed, the through hole the other end that this oil filler pipe passes the pump housing is positioned at outside the pump housing, the conduit that links to each other with permanent position lubricating cup passes the pump housing, the other end is connected with the oil cylinder bottom, the conduit that links to each other with level meter passes the pump housing, and the other end is connected with the oil cylinder bottom.Be provided with labyrinth seal mechanism in the pump housing on arm top, there is the ring bodies on the labyrinth seal body top that main shaft passes to be provided with radial direction through hole in its axis hole, establish fastening piece in it, the downward anchor ring of labyrinth seal body is provided with the annular seal broach, and broach is corresponding with following holding tray surface.The plate face has the baffle plate of small through hole to be provided with perpendicular radial equipartition and the guide plate that mutually disjoints in the flow steadying grid, is provided with the connecting ring parallel with baffle plate in the guide plate upper end, and the through hole that connects usefulness is arranged on its anchor ring.
The utility model mainly be on the basis of existing multi-level submerged pump, be provided with main shaft corrosion and wear sheath, lubricant oil automatically in cycling mechanism, labyrinth seal mechanism and flow steadying grid.
Wherein the anticorrosion sheath of main shaft is the alloy cylinder of a surperficial spraying plating chemical stoneware, and it is located on the main shaft of the seal axis hole that is positioned on the flange seat, and is attached thereto.The two ends up and down that this anticorrosion sheath exceeds seal are equipped with the fastening piece that prevent its displacement corresponding with it, as spring clip or setscrew nut etc.Between above-mentioned anticorrosion sheath and seal, be provided with stuffing box packing.So micro-moisture contained in the sealing gas can only contact with anticorrosion jacket surface with the corrosive material that fed sheet of a media generates, and has fundamentally solved the etching problem of main shaft.
Main shaft abrasionproof sheath is a chemical stoneware or cemented carbide cylinder, and it is located on the main shaft that is positioned at the sliding bearing axis hole, and connects together with it.The lower end of this abrasionproof sheath is provided with the fastening piece that prevent its displacement corresponding with it, as spring clip or setscrew nut etc.Because the abrasionproof sheath is coated on the main shaft outside, make main shaft when rotating, directly not contact with sliding bearing, so also just fundamentally solved the wear problem of main shaft.
Be positioned at the automatic cycling mechanism of lubricant oil of pump housing upper motor support, it mainly includes: oil cylinder, gland, axle sleeve, bearing pressure ring, oil filler pipe, permanent position lubricating cup and level meter.The oil cylinder that wherein is located on the interior supporting element of the pump housing is the housing that toroidal cavity is arranged, and the tubular madial wall has main shaft to pass, and is provided with the axle sleeve that tightens together with main shaft with top outside madial wall.This has the bottom of the ring-type axle sleeve center hole that main shaft passes to be provided with the cavity that the oil cylinder madial wall is contained and holds oil.Shrink to the oil cylinder madial wall this cavity lower end.Being provided with grease channel in addition in axle sleeve is oil guiding hole, and its lower ending opening is connected with cavity under the axle sleeve, and upper end open is positioned at bearing top.The bearing that is located between oil cylinder upper shed and the axle sleeve is located by bearing pressure ring and fastening piece.Establish the adjustment nut of adjusting the main shaft upper-lower position, the threaded engagement on its screw thread and the main shaft on the pressure ring of axle sleeve upper end.Be provided with the gland that its upper shed is covered on oil cylinder, its center hole has main shaft to pass.Also be provided with an end on the gland and be communicated with the oil circuit that the other end links to each other with oil filler pipe with the oil cylinder upper shed.The through hole the other end that this oil filler pipe passes the pump housing is positioned at outside the pump case.The automatically interior cycling mechanism of above-mentioned lubricant oil also is provided with the constant temperature lubricating cup, and the conduit that links to each other with lubricating cup passes the pump housing the other end and is connected with the oil cylinder bottom.Also be provided with the level meter of observing lubricant oil liquid level height in addition in this mechanism, the conduit that links to each other with level meter passes the pump housing the other end and is connected with the oil cylinder bottom.When main shaft drives the axle sleeve high speed rotating, be not only in-oil cylinder lubricant oil eddy flow, and the air of bearing top also eddy flow get up to form negative pressuren zone, so in-oil cylinder lubricant oil is just along its top of the up arrival of oil guiding hole.Under action of gravity, flow in the bearing it lubricatedly from the lubricant oil that oil guiding hole comes out again, drop down onto at last in the oil cylinder, formed lubricant oil automatically in circulation.Lubricant oil also is cooled in cyclic process, makes the oil temperature constant.
Be provided with labyrinth seal mechanism in the pump housing on arm top, it includes labyrinth seal body and supporting plate.The flange dish type labyrinth seal body that has main shaft to pass in its central axis hole, the ring bodies on top is provided with radial direction through hole, and being provided with fastening piece in it can connect together labyrinth seal body and main shaft.The downward anchor ring of labyrinth seal body is provided with the annular seal broach, and these broach are corresponding with following holding tray surface.Drive the rotation of labyrinth seal body when main shaft rotates, the broach below it cooperates the resistance that increases in the leakage flow with pallet, can keep discharge pressure, reduces volumetric loss.
The flow steadying grid that is located at pump housing lower end mainly includes baffle plate, connecting ring and guide plate.Wherein baffle plate is a circular plate, and the plate face is provided with small through hole.Be provided with perpendicular guide plate on baffle plate, they are radial equipartition and mutually disjoint.Be provided with the connecting ring parallel with baffle plate in the guide plate upper end, its anchor ring is provided with some through holes, and the fastening piece that passes through hole can be fixed on flow steadying grid the lower end of pump.This flow steadying grid can make and be transferred liquid and radially enter in the pump housing by axially becoming, and avoids pump to produce whirlpool in the running and causes the cavitation or the idle running of pump, has reduced the minimum conveying liquid level of medium.
The utility model has following advantage compared to existing technology:
1, main shaft can not be corroded and wear and tear, and has prolonged the life cycle of main shaft, has reduced expensive main shaft maintenance and processing charges.
2, lubricant oil can interiorly automatically circulate, and reduced the operating cost of pump considerably beyond API610 (sixth version) specified standard the working life that makes bearing.
3, adopt labyrinth seal mechanism, when discharge pressure is too high, can realize the throttling pressurize, make volumetric loss be reduced to bottom line, stablized the working efficiency of pump.
4, this pump can not produce whirlpool in the suction port place in use, makes minimum liquid level reduce to 1/3 of like product, is 200mm only, has made things convenient for user's the monitoring and the emptying of basin.
Drawing is described as follows:
Fig. 1 is that the utility model master looks generalized section.
Fig. 2 is the local enlarged diagram of the anticorrosion jacket portions of Fig. 1 main shaft.
Fig. 3 is the local enlarged diagram of Fig. 1 main shaft abrasionproof jacket portions.
Fig. 4 is the local enlarged diagram of the automatic intercooling cycle of Fig. 1 lubricant oil mechanism.
Fig. 5 is the local enlarged diagram of Fig. 1 labyrinth seal mechanism.
Fig. 6 is that Fig. 1 flow steadying grid master looks the section enlarged diagram.
Fig. 7 is that Fig. 1 flow steadying grid is overlooked enlarged diagram.
The utility model is described in further detail to utilize the example shown in the accompanying drawing.In the cross-sectional schematic of safe gas sealing multi-level submerged pump shown in Figure 1, the pump housing 1 upper end is an electric machine support 2, establishes the automatically interior cycling mechanism 3 of lubricant oil in it.The electric machine support lower end is provided with the seal diaphragm 4 of level, is the sealed case 5 of the pump housing below it.On the outer pump housing of sealed case bottom, be provided with flange seat 6, establish seal in this flange seat.On the main shaft at seal place, be provided with anticorrosion sheath 7 parts.In the pump housing between flange seat and output arm, mill sheath 8 parts of setting up defences on the main shaft in the sliding bearing axis hole also are provided with conveyance fluid selflubricating cooling and wiper mechanism 9 on the main shaft therebetween.Main shaft 10 upper ends that are positioned at pump housing center can link to each other with the motor on the electric machine support, and the bottom links to each other with multi-stage impeller 11.Be provided with flow steadying grid 12 in pump housing lower end.On the pump housing on multi-stage impeller top, be provided with the output arm 13 that extends upward and exceed flange seat, in the pump housing on arm top, be provided with labyrinth seal mechanism 14.
In the local enlarged diagram of the anticorrosion jacket portions of safe gas sealing multi-level submerged pump shown in Figure 2, the anticorrosion sheath 15 of alloy main shaft of surface spraying plating chemical stoneware is located on the main shaft of seal 16 axis holes that are positioned on the flange seat, is located by spring clip 17 and setscrew nut 18.Be provided with stuffing box packing 19 between anticorrosion sheath and seal, its top is provided with filler hold down gag 20.On the anticorrosion sheath of stuffing box packing bottom, be provided with urgent caulking gum sealed bladder 21 and urgent sealing gland seat 22.Pressed gas conduit 23 passes the pump housing and links to each other with the upper end, duct that is connected with the rubber seal capsule.Conventional sealing gas enters sealed case from sealing gas inlet 24, and sealing gas enters the duct 25 of seal via the outer filler of anticorrosion sheath, and this end, duct is discharged conduit 26 with the sealing gas that passes the pump housing and linked to each other.
In the local enlarged diagram of the main shaft abrasionproof jacket portions of safe gas shown in Figure 3 sealing multi-level submerged pump, be enclosed within on the main shaft and by the chemical stoneware main shaft abrasionproof sheath 28 peripheral hardware sliding bearings 29 of spring clip 27 location, its outside is provided with the body of sliding bearing 30 that is fixed on the pump housing.The fastening piece 31 that passes this body of sliding bearing links to each other the body of sliding bearing with sliding bearing.The end, duct that links to each other with its middle part cooling hole 32 on this sliding bearing links to each other with balance tube 33.
The lubricant oil of safe gas shown in Figure 4 sealing multi-level submerged pump automatically in the local enlarged diagram of cycling mechanism, the oil cylinder 35 that is located on the interior supporting element 34 of the pump housing is the housing that toroidal cavity is arranged, there is main shaft to pass in its madial wall 36, outer and the top of madial wall is provided with the axle sleeve 37 that tightens together with main shaft, be provided with successively thereon pressure ring 38 and with main shaft on the corresponding adjustment nut 39 of screw thread.Have main shaft to pass in the axle sleeve center hole, this axle sleeve bottom is provided with the oil cylinder madial wall is comprised the also cavity of store oil.Be provided with oil guiding hole 40 in addition in axle sleeve, its lower ending opening is connected with the store oil cavity, and upper end open is positioned on the bearing.Between oil cylinder upper shed and axle sleeve, be provided with bearing 41, establish bearing pressure ring 42 on it.Be provided with gland 43 on oil cylinder, main shaft passes its center hole, also is provided with the dust cover 44 that connects together with main shaft on the gland.Also be provided with an end on the gland and be communicated with the oil circuit that the other end links to each other with oil filler pipe 45 with the oil cylinder upper shed.This oil filler pipe passes the through hole of the pump housing, and the other end is positioned at outside the pump housing.Other has the conduit 47 that links to each other with permanent position lubricating cup 46 to pass the pump housing, and the other end is connected with the oil cylinder bottom.The conduit 49 that links to each other with level meter 48 passes the pump housing, and the other end is connected with the oil cylinder bottom.
In the local enlarged diagram of safe gas sealing multi-level submerged pump labyrinth seal mechanism shown in Figure 5, there is main shaft to pass in flange dish type labyrinth seal body 50 axis holes, downward anchor ring is provided with the annular seal broach, and broach is corresponding with following pallet 51 planes again.Above-mentioned pallet is fixed on the pump housing and sliding bearing 52 on arm top.
Seal in the schematic representation of multi-level submerged pump flow steadying grid at Fig. 6 and safe gas shown in Figure 7, the plate face of circular baffle plate 53 is provided with small through hole, the guide plate 54 that is provided with perpendicular radial equipartition and mutually disjoints on this baffle plate.Be provided with the connecting ring parallel with baffle plate 55 in the guide plate upper end, its anchor ring is provided with the through hole 56 that connects usefulness.
Claims (4)
1, a kind of safe gas sealing multi-level submerged pump, its pump housing (1) upper end is electric machine support (2), in establish lubricating structure, the electric machine support lower end is provided with seal diaphragm (4), it below it sealed case (5) of the pump housing, on the outer pump housing of sealed case bottom, be provided with flange seat (6), establish seal in it, be provided with sliding bearing and conveyance fluid selflubricating cooling and wiper mechanism (9) in the pump housing between flange seat and output arm, its upper end of main shaft (10) that is positioned at pump housing center can link to each other with the motor on the electric machine support, the bottom links to each other with multi-stage impeller (11), on the pump housing on multi-stage impeller top, be provided with the output arm (13) that extends upward and exceed flange seat, it is characterized in that:
Be provided with the anticorrosion sheath (7) that is attached thereto on a, the main shaft in the stuffing box packing of seal axis hole,
Be provided with the abrasionproof sheath (8) that is attached thereto on b, the main shaft in the sliding bearing axis hole.
2, safe gas sealing multi-level submerged pump according to claim 1, it is characterized in that: it has the oil cylinder (35) that is located on the interior supporting element (34) of the pump housing the automatically interior cycling mechanism (3) of lubricant oil, its have madial wall (36) outside that main shaft passes and top be provided with main shaft tighten together above the axle sleeve (37) of pressure ring and adjustment nut is arranged, shrink to the oil pocket madial wall lower end of this axle sleeve cavity, in axle sleeve, be provided with oil guiding hole (40), its lower ending opening and axle sleeve (41) the cavity upper end open that is connected down are positioned at bearing top, the bearing that is located at oil cylinder upper shed and shaft room is by bearing pressure ring (42) and fastening piece location, the oil cylinder gland (43) that center hole has main shaft to pass also is provided with an end and is communicated with the oil circuit that the other end links to each other with oil filler pipe with the oil cylinder upper shed, the through hole the other end that this oil filler pipe (45) passes the pump housing is positioned at outside the pump housing, the conduit (47) that links to each other with permanent position lubricating cup (46) passes the pump housing, the other end is connected with the oil cylinder bottom, the conduit (49) that links to each other with level meter (48) passes the pump housing, and the other end is connected with the oil cylinder bottom.
3, safe gas sealing multi-level submerged pump according to claim 2, it is characterized in that: be provided with labyrinth seal mechanism (14) in the pump housing on arm top, there is the ring bodies on labyrinth seal body (50) top that main shaft passes to be provided with radial direction through hole in its axis hole, establish fastening piece in it, the downward anchor ring of labyrinth seal body is provided with the annular seal broach, and broach is corresponding with following pallet (51) plane.
4, safe gas sealing multi-level submerged pump according to claim 3, it is characterized in that: the plate face has the baffle plate (53) of small through hole to be provided with perpendicular radial equipartition and the guide plate that mutually disjoints (54) in the flow steadying grid (12), be provided with the connecting ring parallel (55) in the guide plate upper end, the through hole (56) that connects usefulness is arranged on its anchor ring with baffle plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224787 CN2382862Y (en) | 1999-08-10 | 1999-08-10 | Safety gas sealed multi stage under liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99224787 CN2382862Y (en) | 1999-08-10 | 1999-08-10 | Safety gas sealed multi stage under liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2382862Y true CN2382862Y (en) | 2000-06-14 |
Family
ID=34014763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99224787 Expired - Lifetime CN2382862Y (en) | 1999-08-10 | 1999-08-10 | Safety gas sealed multi stage under liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2382862Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062107A (en) * | 2010-12-13 | 2011-05-18 | 甘肃银光聚银化工有限公司 | Multi-stage axial flow submerged pump with long shaft and method for conveying phosgene |
| CN102943773A (en) * | 2012-11-19 | 2013-02-27 | 大耐泵业有限公司 | Optical air pump |
| CN107961642A (en) * | 2017-12-01 | 2018-04-27 | 河北东厚环保科技有限公司 | Gas recovery system for oil based on high throughput nanometer adsorbent bed |
| CN107970747A (en) * | 2017-12-01 | 2018-05-01 | 河北东厚环保科技有限公司 | Can remote monitoring oil gas automation recovery system |
-
1999
- 1999-08-10 CN CN 99224787 patent/CN2382862Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062107A (en) * | 2010-12-13 | 2011-05-18 | 甘肃银光聚银化工有限公司 | Multi-stage axial flow submerged pump with long shaft and method for conveying phosgene |
| CN102062107B (en) * | 2010-12-13 | 2012-08-29 | 甘肃银光聚银化工有限公司 | Multi-stage axial flow submerged pump with long shaft and method for conveying phosgene |
| CN102943773A (en) * | 2012-11-19 | 2013-02-27 | 大耐泵业有限公司 | Optical air pump |
| CN107961642A (en) * | 2017-12-01 | 2018-04-27 | 河北东厚环保科技有限公司 | Gas recovery system for oil based on high throughput nanometer adsorbent bed |
| CN107970747A (en) * | 2017-12-01 | 2018-05-01 | 河北东厚环保科技有限公司 | Can remote monitoring oil gas automation recovery system |
| CN107970747B (en) * | 2017-12-01 | 2021-01-29 | 河北东厚环保科技有限公司 | Oil gas automatic recovery system capable of being remotely monitored |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: DALIAN CHEMICAL MACHINE PUMP FACTORY TO: DALIAN LUOLAN PUMP MANUFACTURE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Shahekou District of Dalian City, Liaoning province Chengren Street No. nine Patentee after: DALIAN LUOLAN PUMP MANUFACTURE CO., LTD. Address before: Shahekou District of Dalian City, Liaoning province for Street No. nine room 404 Patentee before: Dalian Chemical Machine Pump Factory |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |