CN201723439U - Submerged pump - Google Patents
Submerged pump Download PDFInfo
- Publication number
- CN201723439U CN201723439U CN2010201811839U CN201020181183U CN201723439U CN 201723439 U CN201723439 U CN 201723439U CN 2010201811839 U CN2010201811839 U CN 2010201811839U CN 201020181183 U CN201020181183 U CN 201020181183U CN 201723439 U CN201723439 U CN 201723439U
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- Prior art keywords
- water pumps
- under water
- liquid
- pumps device
- gear
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- Expired - Fee Related
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Abstract
The utility model discloses a submerged pump, which is characterized by comprising an internal gear pump assembly. The internal gear pump assembly is arranged under a liquid level when being used, and comprises an internal gear and an external gear in a pump shell, the internal gear and the external gear are separated by an intermediate crescent component and can be mutually engaged, and the external gear is connected with a power source outside liquid through a one-piece shaft. The utility model can be applied to extract and transport the high-temperature and/or high-viscosity liquid medium, and has the advantages of high working efficiency, high reliability and high functionality.
Description
Technical field
The utility model relates to pump-unit, and especially the pump-unit that uses under the liquid level of liquid is also referred to as the Under Water Pumps device.
Background technique
At industrial field,, often need from storage tank, extract and delivering liquid raw material or product, for example crude oil, solvent etc. especially at petrochemical industry.Especially, liquid to be extracted and that carry is high temperature and/or full-bodied liquid sometimes, for example modified coal tar pitch etc.Known such extracting mode in the reality promptly, immerses pump-unit in this liquid, so that the power that utilizes pump is transported to liquid in the miscellaneous equipment on its liquid level.At present, use the centrifugal pump device to realize this extraction and conveying usually.Yet for example under the situation of high viscosity liquid, the efficient of centrifugal pump is very low at some liquid.
Therefore, for the liquid of particular type, especially high temperature and/or full-bodied liquid need provide more efficiently extraction and feedway.
The model utility content
Extraction and conveying the Under Water Pumps device that a kind of novelty be provided of the utility model by crescent gear pump being used for above-mentioned liquid medium.
Particularly, the utility model provides a kind of like this Under Water Pumps device, this Under Water Pumps device is characterised in that the crescent gear pump assembly that comprises under the liquid level that is placed on liquid in use, this crescent gear pump assembly comprises internal gear and the external gear that is arranged in the pump case, this internal gear and external gear separate by middle crescent moon spare and can be meshing with each other, wherein, this external gear is connected to the power source that is positioned at liquid external by the single-piece axle.
Under Water Pumps device of the present utility model especially can be used for extracting and carrying high temperature and/or full-bodied liquid medium, and this Under Water Pumps device high working efficiency, good reliability especially go for high operating mode of denuding.
Description of drawings
With reference to the accompanying drawings the utility model is elaborated, in the accompanying drawings:
Fig. 1 illustrates the overview of the partly cut-away of Under Water Pumps device of the present utility model; And
Fig. 2 illustrates the view of the end portion of the Under Water Pumps device Fig. 1 from another angle.
Embodiment
Under Water Pumps device of the present utility model is suitable for carrying the high-temperature liquid state medium, and for example temperature reaches modified coal tar pitch, tar asphalt of 400 ℃ etc.Described liquid medium also can have bigger viscosity.Therefore, be appreciated that below each parts of the Under Water Pumps device that will describe in detail are preferably made by resistant to elevated temperatures material, and the material that constitutes each parts preferably has mutual matched coefficient of thermal expansion.
According to the utility model, be used under the liquid level of liquid so that extract and carry the Under Water Pumps device of liquid mainly to comprise crescent gear pump 10.Particularly, referring to Fig. 1, this crescent gear pump 10 comprises the gear train 11 that is placed in the pump case 12.As be known in the art, this gear train 11 comprises internal gear and the external gear that separates via the crescent shape part, wherein the power that receives from power source 30 via transmission shaft 20 as the external gear of driving wheel.
As shown in Figure 1, the transmission shaft 20 that connects crescent gear pump 10 and power source 30 is the single-piece axle, that is to say that this axle is made for piece component.Preferred this single-piece axle 20 is the heavy-load type back shaft.The external gear of this 20 1 end connection gear pump 10, the other end link to each other with output shaft as the motor 30 of power source above cover plate 40.Be appreciated that cover plate 40 is used to seal the storage tank of liquid to be carried.Therefore, in context of the present utility model, the lower surface of cover plate 40 is considered as the liquid level of liquid.
As can be as seen from Figure 1, in the preferred embodiment that is shown, single-piece axle 20 comprises the segmentation of different-diameter.For example, this diameter of 20 makes progress into stepped increase from the lower end that it links to each other with gear pump 10.Like this, can when running up, this Under Water Pumps device guarantee the stability of conveying.
In addition, can utilize tubular wall 21 surround hermetically this single-piece axle 20 be in this axle 20 of part in the liquid-promptly from the lower surface of cover plate 40 to the part the end face up of pump case 12, so that guarantee on the one hand this 20 with the isolation for the treatment of fed sheet of a media, guarantee that this 20 is in the complete enclosed space and guarantees its working life thus and reduce maintenance work, make on the other hand and can guarantee this smooth rotation of 20 for this axle 20 provides supporting (below will be elaborated).Be appreciated that as shown in fig. 1 under the situation that guarantees sealing, tubular wall 21 can be made of for the pipeline section of cylindricality substantially a plurality of.
According to a kind of preferred embodiment, can arrange in described tubular wall 21 that at least one is used to support the bearing unit of described axle 20, is preferably slide bearing assembly 50.Described slide bearing assembly 50 preferably has high machining accuracy, so that guarantee the accurate centering between single-piece axle 20 and the pump case 12.In addition, preferably, the sliding bearing that has selflubricating in the slide bearing assembly 50, the self oiling bearing that is made of materials such as graphite, silicon carbide and cemented carbide for example is so that be adapted to the high temperature media environment and guarantee the suitable operation of axle 20 and gear pump 10.
As shown in Figure 1, can airtight axle bush 210 be set, so that prevent the pressure loss in the pump case 12 at the position that transmission shaft 20 contacts with the pump case 12 of gear pump 10.In addition, can bearing unit 230 be set at the position that transmission shaft 20 is connected with motor 30, double-row thrust bearing assembly for example is so that provide good sealing in the operation that guarantees axle 20.This bearing unit 230 can be provided with labyrinth, to protect the bearing in it.
According to the utility model, as support 60 supportings of the motor 30 of power source by the upper surface that is placed in cover plate 40.Preferred support 60 is a stand type support, so that guarantee the accurate centering of axle with the single-piece axle 20 of motor 30, and guarantees the assembling accuracy of whole assembly thus.
In addition, at the position that double-row thrust bearing assembly 230 is installed, for example be fixed to position on the stand type support 60 at this bearing unit 230, can be provided with and regulate bolt 70, stretch into the length that also stretches into thus in the liquid in the pump case 12 so that can regulate single-piece axle 20 from the outside, thereby realize adjusting the gear clearance of crescent gear pump 10 by this bolt 70.
At last, as can be as seen from the figure, the outlet end of gear pump 10 leads to outside the liquid level by delivery pipe 80.As shown in Figure 1, delivery pipe 80 can be fixed on the cover plate 40 by locking nut and dunnage, so that connect outside medium receiving vessel.
As shown in Figure 2, it is contemplated that the entry end at gear pump 10 is provided with filter 13, enter the pump chamber of this gear pump 10 so that prevent the foreign material in the liquid medium to be carried, thereby further prolong the working life of gear pump 10.
Compare with conventional centrifugal pump, gear pump arrangement of the present utility model can with lower speed operation, be realized higher medium transport efficient simultaneously. For example, the flow of gear pump arrangement of the present utility model can reach 110m3/ h, lift can reach 150m, but and the liquid medium of delivery temperature up to 450 ℃. This submerged pump can be used for extracting and carries modified coal tar pitch, tar, lubricating grease, lubricating oil and variously have abrasion, corrosivity or noncorrosive liquid, has wide range of applications, strong adaptability.
Claims (7)
1. Under Water Pumps device, it is characterized in that, this Under Water Pumps device comprises the crescent gear pump assembly under the liquid level that is placed on liquid in use, this crescent gear pump assembly comprises internal gear and the external gear that is arranged in the pump case, this internal gear and external gear separate by middle crescent moon spare and can be meshing with each other, wherein, this external gear is connected to the power source that is positioned at liquid external by the single-piece axle.
2. according to the Under Water Pumps device of claim 1, it is characterized in that described single-piece axle connects described power source by the double-row thrust bearing assembly, this double-row thrust bearing assembly is gone into the adjusting bolt of the length in the liquid level by regulating this single-piece shaft extension.
3. according to the Under Water Pumps device of claim 1, it is characterized in that described power source is a motor, this motor is supported by the stand type support on the liquid level that is arranged on liquid.
4. according to the Under Water Pumps device of claim 1, it is characterized in that described single-piece axle comprises the segmentation of different-diameter.
5. according to the Under Water Pumps device of claim 1, it is characterized in that the part that is in the liquid of described single-piece axle is surrounded hermetically by tubular wall.
6. according to the Under Water Pumps device of claim 5, it is characterized in that, comprise the selflubricating formula slide bearing assembly that is arranged in the described tubular wall, to be used to support described single-piece axle.
7. according to the Under Water Pumps device of claim 1, it is characterized in that the entry end of described pump case is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201811839U CN201723439U (en) | 2010-04-23 | 2010-04-23 | Submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201811839U CN201723439U (en) | 2010-04-23 | 2010-04-23 | Submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723439U true CN201723439U (en) | 2011-01-26 |
Family
ID=43491759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201811839U Expired - Fee Related CN201723439U (en) | 2010-04-23 | 2010-04-23 | Submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723439U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635753A (en) * | 2016-12-29 | 2017-05-10 | 北京化工大学 | System device for strengthening high-viscosity microbial polysaccharide fermentation and application |
-
2010
- 2010-04-23 CN CN2010201811839U patent/CN201723439U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635753A (en) * | 2016-12-29 | 2017-05-10 | 北京化工大学 | System device for strengthening high-viscosity microbial polysaccharide fermentation and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20130423 |