CN202280615U - Immersion type double-screw cargo oil pump - Google Patents
Immersion type double-screw cargo oil pump Download PDFInfo
- Publication number
- CN202280615U CN202280615U CN 201120346191 CN201120346191U CN202280615U CN 202280615 U CN202280615 U CN 202280615U CN 201120346191 CN201120346191 CN 201120346191 CN 201120346191 U CN201120346191 U CN 201120346191U CN 202280615 U CN202280615 U CN 202280615U
- Authority
- CN
- China
- Prior art keywords
- screw
- pump
- transmission shaft
- cargo oil
- immersion type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an immersion type double-screw cargo oil pump, which includes a pump body, two screws and a transmission shaft, and is characterized in that the pump body is a vertical mounting structure; an upper bearing is installed at one end of each screw respectively, and a lower bearing and a synchronous gear are installed at the other end of each screw respectively; a filter is installed at an inlet of the pump; the extending end of the transmission shaft is installed with a mechanical seal and coupled with a driving shaft through a rigid coupler; one end of the transmission shaft of the pump body is connected with a connecting pipe and a blow-off pipe sequentially; a safety valve is installed on the blow-off pipe; the driving shaft arranged inside the connecting pipe extends out of a medium high-pressure cavity through a rolling bearing and the seal, and is connected with a driving device; and an oil return pipe connected with a low-pressure cavity of the safety valve body is arranged at a gland of the mechanical seal. The immersion type double-screw cargo oil pump has the advantages that the area of the ship occupied by the double-screw pump is reduced, the ship utilization ratio is improved, and the ship building cost is reduced; and the insertion depth of the double-screw cargo oil pump can be adjusted through changing the length of the connecting pipe and the transmission shaft to realize the effect of insertion and use, so that the immersion type double-screw cargo oil pump is particularly suitable for ships for transporting lubricating oil products.
Description
Technical field
The utility model belongs to volume type screw pump technical field, particularly relates to a kind of immersion type twin-screw cargo oil pump.
Background technique
Two screw pump is a kind of positive displacement pump, has been widely used in each industrial field such as oil, chemical industry and boats and ships at present, is used for carrying various media.Common two screw pump, turnover pipeline, valve and filter floor space are bigger, and pump integral body is exposed, and its leak point is more outside, can bring the contaminated deficiency of working site possibility like this.In addition; In the shipbuilding industry practical application, because installing space is limited in many users' the cabin, so the cargo oil pump of said structure can't satisfy the high requirement of the boats and ships of the narrow and compact in design in space; Therefore, the immersion type twin-screw cargo oil pump that remain the development structure compactness, takes up room little.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of simple in structure, save floor space and immersion type twin-screw cargo oil pump easy to use.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
Immersion type twin-screw cargo oil pump; Comprise the pump housing, be installed in intermeshing two screw rods and transmission shaft in the pump housing; It is characterized in that: the said pump housing is vertical mounting structure, and said two screw rods one end is equipped with upper bearing (metal) respectively, and the other end is equipped with lower bearing and synchromesh gear respectively; Inlet at pump is equipped with filter; Said transmission shaft external part is equipped with mechanical seal, and connects with driving shaft through rigid coupling, and said pump housing transmission shaft one end is connected with blow-off pipe through connecting tube; Said blow-off pipe is equipped with safety valve; Be arranged on driving shaft in the connecting tube and stretch out the medium hyperbaric chamber through rolling bearing and sealing and be connected with drive unit, be provided with the return tube that is connected with the Safety valve body low pressure chamber at the mechanical seal cover place, the said pump housing is through the hyperbaric chamber and the low pressure chamber of the formation pump housing that is meshing with each other of its cast inside diaphragm structure and two screw rods.
The utility model can also adopt following technological scheme:
Said connecting tube is connected with blow-off pipe with fastening piece through flange.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, not only can reduce the area that two screw pump takies boats and ships, improve the boats and ships utilization ratio, reduce the shipbuilding cost; But also can adjust the insertion depth of twin-screw cargo oil pump, thereby reach the effect of plug and play through the length that changes connecting tube and transmission shaft.This pump structure is simple, and assembly is less, processing and easy to maintenance.So this immersion type twin-screw cargo oil pump is specially adapted to transport the boats and ships of lubricity oil product.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, the pump housing; 2, screw rod; 3, upper bearing (metal); 4, lower bearing; 5, synchromesh gear; 6, mechanical seal; 7, connecting tube; 8, transmission shaft; 9, rigid coupling;
10, blow-off pipe11, safety valve; 12, return tube; 13, rolling bearing; 14, mechanical seal; 15, filter; 16, driving shaft; 17, flange
Embodiment
For further understanding summary of the invention, characteristics and the effect of the utility model, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1, immersion type twin-screw cargo oil pump comprises the pump housing 1, is installed in intermeshing two screw rods 2 and transmission shaft 8 in the pump housing.The said pump housing is vertical mounting structure, and said two screw rods one end is equipped with upper bearing (metal) 3 respectively, and the other end is equipped with lower bearing 4 and synchromesh gear 5 respectively, and in the present embodiment, said upper bearing (metal) and lower bearing are preferably rolling bearing.Inlet at pump is equipped with filter 15, and the external part of said transmission shaft 8 is equipped with mechanical seal 6, and connects with driving shaft 16 through rigid coupling 9.Said pump housing transmission shaft one end is connected with connecting tube 7 and blow-off pipe 10 in turn, and said connecting tube is connected with blow-off pipe with fastening piece through flange 17, and safety valve 11 is housed on the said blow-off pipe.Be arranged on driving shafts 16 in the connecting tube 7 and stretch out the medium hyperbaric chamber through rolling bearing 13 and mechanical seal 14 and be connected, be provided with the return tube 12 that is connected with the Safety valve body low pressure chamber at the mechanical seal cover place with drive unit.The said pump housing forms the hyperbaric chamber and the low pressure chamber of the pump housing through being meshing with each other of its cast inside diaphragm structure and two screw rods.
The working principle of the utility model is:
This immersion type twin-screw cargo oil pump is used to carry the working medium with lubricity, and bearing and gear all are lubricated by fed sheet of a media.When immersion type twin-screw cargo oil pump was started working, fed sheet of a media filtered through filter 15, gets into the low pressure chamber of the pump housing 1; Rotary work through screw rod 2; Medium gets into connecting tube 7, blow-off pipe 10 from the hyperbaric chamber of the pump housing 1, and safety valve 11 is housed on blow-off pipe, is used for the working pressure of pump is controlled; For protection mechanical seal 14, draw return tube 12 from its gland and be back to fuel tank.
Claims (2)
1. immersion type twin-screw cargo oil pump; Comprise the pump housing, be installed in intermeshing two screw rods and transmission shaft in the pump housing; It is characterized in that: the said pump housing is vertical mounting structure, and said two screw rods one end is equipped with upper bearing (metal) respectively, and the other end is equipped with lower bearing and synchromesh gear respectively; Inlet at pump is equipped with filter; Said transmission shaft external part is equipped with mechanical seal, and connects with driving shaft through rigid coupling, and said pump housing transmission shaft one end is connected with blow-off pipe through connecting tube; Said blow-off pipe is equipped with safety valve; Be arranged on driving shaft in the connecting tube and stretch out the medium hyperbaric chamber through rolling bearing and sealing and be connected with drive unit, be provided with the return tube that is connected with the Safety valve body low pressure chamber at the mechanical seal cover place, the said pump housing is through the hyperbaric chamber and the low pressure chamber of the formation pump housing that is meshing with each other of its cast inside diaphragm structure and two screw rods.
2. immersion type twin-screw cargo oil pump according to claim 1 is characterized in that: said connecting tube is connected with blow-off pipe with fastening piece through flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120346191 CN202280615U (en) | 2011-09-15 | 2011-09-15 | Immersion type double-screw cargo oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120346191 CN202280615U (en) | 2011-09-15 | 2011-09-15 | Immersion type double-screw cargo oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280615U true CN202280615U (en) | 2012-06-20 |
Family
ID=46226785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120346191 Expired - Fee Related CN202280615U (en) | 2011-09-15 | 2011-09-15 | Immersion type double-screw cargo oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673813A (en) * | 2013-12-04 | 2014-03-26 | 渤海造船厂集团有限公司 | Cargo oil pump and turbine mounting and aligning method |
| CN106286281A (en) * | 2014-07-29 | 2017-01-04 | 吴小再 | A kind of screw immersible pump |
| EP3371456A4 (en) * | 2015-11-02 | 2019-06-26 | Flowserve Management Company | Multi-phase pumping system with self-purging filtration |
-
2011
- 2011-09-15 CN CN 201120346191 patent/CN202280615U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673813A (en) * | 2013-12-04 | 2014-03-26 | 渤海造船厂集团有限公司 | Cargo oil pump and turbine mounting and aligning method |
| CN103673813B (en) * | 2013-12-04 | 2017-06-23 | 渤海造船厂集团有限公司 | A kind of cargo oil pump and turbine mounting and aligning method |
| CN106286281A (en) * | 2014-07-29 | 2017-01-04 | 吴小再 | A kind of screw immersible pump |
| CN106286280A (en) * | 2014-07-29 | 2017-01-04 | 吴小再 | Screw immersible pump |
| CN106286281B (en) * | 2014-07-29 | 2018-05-18 | 山东大晃机械有限公司 | A kind of screw immersible pump |
| CN106286280B (en) * | 2014-07-29 | 2018-06-29 | 郑志滨 | Screw immersible pump |
| EP3371456A4 (en) * | 2015-11-02 | 2019-06-26 | Flowserve Management Company | Multi-phase pumping system with self-purging filtration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20140915 |
|
| EXPY | Termination of patent right or utility model |