CN111188774A - High pressure resistant circulating pump structure - Google Patents
High pressure resistant circulating pump structure Download PDFInfo
- Publication number
- CN111188774A CN111188774A CN202010009638.7A CN202010009638A CN111188774A CN 111188774 A CN111188774 A CN 111188774A CN 202010009638 A CN202010009638 A CN 202010009638A CN 111188774 A CN111188774 A CN 111188774A
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- water
- shaft
- suction
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- 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
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- 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
- F04D29/4293—Details of fluid inlet or outlet
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- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/11—Iron
- F05D2300/111—Cast iron
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A high pressure resistant circulating pump structure. Including the pump body, the pump cover, the impeller, the axle, the double suction sealing ring, the axle sleeve, a bearing etc., except that the material of axle is high-quality carbon steel, it is mostly made for cast iron, the pump body constitutes the studio of impeller with the pump cover, the system has the pipe screw hole of installation vacuum table and manometer on business turn over water flange, the lower pars of business turn over water flange has the pipe screw hole of draining, the impeller passes through the static balance check-up, it is fixed with the axle sleeve nut of axle sleeve and both sides, its axial position can be adjusted through the axle sleeve nut, the axial force of impeller utilizes the symmetrical arrangement of its blade to reach the balance. The invention has the advantages that the suction inlet and the discharge outlet are both arranged below the axial line of the pump, the impeller is equivalent to two single-suction impellers with the same size and works together, and the flow can be doubled under the condition of the same size and diameter as the single-stage centrifugal pump impeller.
Description
Technical Field
The invention relates to the technical field of circulating pumps, in particular to a high-pressure-resistant circulating pump structure.
Background
The existing small high-pressure circulating pumps mostly adopt gears. The gear circulating pump has low fluid adaptability, normal work of the gear pump can be influenced if the fluid is viscous, and the gear can be damaged by impurities in the fluid, so that the gear pump cannot work normally.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a high-pressure-resistant circulating pump structure, which can adsorb particles, corrosive substances and the like remained on the inner wall of a pump through activated carbon powder, basically has no dead angle, can take out the harmful substances remained on the inner wall by pumping high-pressure gas into the circulating pump, can quickly discharge the harmful substances out of the pump through high-pressure water washing, and can reduce the residues of the activated carbon particles and the harmful substances.
In order to achieve the purpose, the invention adopts the following technical scheme:
in order to overcome the defects of the prior art, the invention provides a high pressure resistant circulating pump structure, which comprises a pump body, a pump cover, an impeller, a shaft, a double-suction sealing ring, a shaft sleeve, a bearing and the like, wherein except that the material of the shaft is high-quality carbon steel, the rest is made of cast iron, the pump body and the pump cover form a working chamber of the impeller, pipe screw holes for installing a vacuum meter and a pressure gauge are formed on a water inlet and outlet flange, pipe screw holes for discharging water are formed in the lower part of the water inlet and outlet flange, the impeller is fixed by the shaft sleeve and shaft sleeve nuts on two sides after static balance verification, the axial position of the impeller can be adjusted by the shaft sleeve nuts, the axial force of the impeller is balanced by utilizing the symmetrical arrangement of blades of the impeller, possibly some residual axial force is born by the bearing at the shaft end, the pump shaft is supported by two single-row radial ball bearings which are arranged in the bearing bodies at two ends of the pump body and lubricated, the water pump is directly driven by the motor through the coupler, the shaft seal is sealed by soft packing, a water seal ring is arranged between the packing for cooling and lubricating a seal cavity and preventing air from leaking into the pump, and a small amount of high-pressure water flows into the packing cavity through a water seal pipe to form a water seal when the water pump works.
Preferably, the screw rod is a single-head screw rod or a multi-head screw rod.
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that the suction inlet and the discharge outlet are both arranged below the axial lead of the pump, the impeller is equivalent to two single-suction impellers with the same size and work together, the flow can be doubled under the condition of the same size and diameter as the impeller of the single-stage centrifugal pump, in addition, the pump body is provided with two water suction chambers, most particularly, the water inlet direction of the double-suction impeller is different from that of the single-suction impeller, and the double-suction impeller has the advantages that the flow speed of the water inlet is reduced and the double-suction pump is not easy to generate cavitation under the condition of the same rotating speed and flow.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to an embodiment of the present invention, a high pressure resistant circulation pump structure is provided.
Detailed description of the inventionthe present invention is further described below in conjunction with specific examples to better understand the present invention.
The invention provides a high-pressure-resistant circulating pump which comprises a pump body, a pump cover, an impeller, a shaft, a double-suction sealing ring, a shaft sleeve, a bearing and the like. Except that the shaft is made of high-quality carbon steel, most of the shaft is made of cast iron. The pump body and the pump cover form a working chamber of the impeller, pipe screw holes for mounting a vacuum gauge and a pressure gauge are formed on the water inlet and outlet flange, and a pipe screw hole for discharging water is formed on the lower weir of the water inlet and outlet flange. The impeller is subjected to static balance check, is fixed by a shaft sleeve and shaft sleeve nuts on two sides, the axial position of the impeller can be adjusted by the shaft sleeve nuts, the axial force of the impeller is balanced by utilizing the symmetrical arrangement of blades of the impeller, and possibly some residual axial force is born by a bearing at the same shaft end. The pump shaft is supported by two single-row radial ball bearings, the bearings are arranged in the bearing bodies at two ends of the pump body and are lubricated by grease, and the double-suction sealing ring is used for reducing water leakage of the pumping chamber of the water pump and returning to the water suction chamber. The water pump is directly driven by the motor through the coupler, the shaft seal is sealed by soft packing, a water seal ring is arranged between the packing for cooling and lubricating a seal cavity and preventing air from leaking into the pump, and a small amount of high-pressure water flows into the packing cavity through a water seal pipe to form a water seal when the water pump works.
The suction inlet and the discharge outlet are both arranged below the axial lead of the pump, the impeller is equivalent to two single-suction impellers with the same size and work together, the flow can be doubled under the condition of the same size and diameter as the impeller of the single-stage centrifugal pump, namely, the pump body is provided with two water suction chambers, most particularly, the water inlet direction of the double-suction impeller is different from that of the single-suction impeller, and the double-suction impeller has the advantages that under the condition of the same rotating speed and flow, the flow speed of the water inlet is reduced, and the double-suction pump is not easy to generate cavitation.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (1)
1. A high-pressure resistant circulating pump structure is characterized by comprising a pump body, a pump cover, an impeller, a shaft, a double-suction sealing ring, a shaft sleeve, a bearing and the like, wherein except that the material of the shaft is high-quality carbon steel, the pump body and the pump cover form a working chamber of the impeller, pipe screw holes for mounting a vacuum meter and a pressure gauge are formed in a water inlet and outlet flange, pipe screw holes for discharging water are formed in the lower part of the water inlet and outlet flange, the impeller is subjected to static balance verification and is fixed by the shaft sleeve and shaft sleeve nuts on two sides, the axial position of the impeller can be adjusted by the shaft sleeve nuts, the axial force of the impeller is balanced by the symmetrical arrangement of blades, possibly, residual axial force is born by the bearing at the same shaft end, the pump shaft is supported by two single-row radial ball bearings, the bearings are arranged in bearing bodies at two ends of the pump body and are lubricated by butter, the double-suction sealing ring is used, the water pump is directly driven by the motor through the coupler, the shaft seal is sealed by soft packing, a water seal ring is arranged between the packing for cooling and lubricating a seal cavity and preventing air from leaking into the pump, and a small amount of high-pressure water flows into the packing cavity through a water seal pipe to form a water seal when the water pump works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009638.7A CN111188774A (en) | 2020-01-06 | 2020-01-06 | High pressure resistant circulating pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010009638.7A CN111188774A (en) | 2020-01-06 | 2020-01-06 | High pressure resistant circulating pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111188774A true CN111188774A (en) | 2020-05-22 |
Family
ID=70706020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010009638.7A Pending CN111188774A (en) | 2020-01-06 | 2020-01-06 | High pressure resistant circulating pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111188774A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195635Y (en) * | 1994-08-08 | 1995-04-26 | 冯炎 | Safety energy-saving single-stage double-suction centrifugal water pump |
| CN202531472U (en) * | 2012-03-14 | 2012-11-14 | 四川新达泵业有限责任公司 | Single-stage double-suction axially split pump |
| CN204900265U (en) * | 2015-07-07 | 2015-12-23 | 四川新达泵业有限责任公司 | Single -stage double suction split case pump |
| JP2017014984A (en) * | 2015-06-30 | 2017-01-19 | 株式会社荏原製作所 | Fluid machine |
| CN206723123U (en) * | 2017-05-16 | 2017-12-08 | 新达泵阀股份有限公司 | A kind of single-stage double-suction centrifugal pump |
-
2020
- 2020-01-06 CN CN202010009638.7A patent/CN111188774A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195635Y (en) * | 1994-08-08 | 1995-04-26 | 冯炎 | Safety energy-saving single-stage double-suction centrifugal water pump |
| CN202531472U (en) * | 2012-03-14 | 2012-11-14 | 四川新达泵业有限责任公司 | Single-stage double-suction axially split pump |
| JP2017014984A (en) * | 2015-06-30 | 2017-01-19 | 株式会社荏原製作所 | Fluid machine |
| CN204900265U (en) * | 2015-07-07 | 2015-12-23 | 四川新达泵业有限责任公司 | Single -stage double suction split case pump |
| CN206723123U (en) * | 2017-05-16 | 2017-12-08 | 新达泵阀股份有限公司 | A kind of single-stage double-suction centrifugal pump |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200522 |
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| WD01 | Invention patent application deemed withdrawn after publication |