CN211924479U - Corrosion-resistant centrifugal pump suitable for yellow river water is carried - Google Patents
Corrosion-resistant centrifugal pump suitable for yellow river water is carried Download PDFInfo
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- CN211924479U CN211924479U CN201921889854.4U CN201921889854U CN211924479U CN 211924479 U CN211924479 U CN 211924479U CN 201921889854 U CN201921889854 U CN 201921889854U CN 211924479 U CN211924479 U CN 211924479U
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Abstract
The utility model discloses a corrosion-resistant centrifugal pump suitable for yellow river water delivery, the pump cover is detachably installed on the pump body, the throttle sealing ring is bidirectionally fixed through the matching seam allowance of the pump body and the pump cover, and the impeller is fixed on the rotor component; the rotor component is divided into a driving end and a non-driving end, the driving end is provided with a coupler which is connected with a driving machine, the non-driving end is provided with a positioning bearing which is used for axially positioning the whole rotor component, the bearing component is correspondingly divided into a driving end bearing and a non-driving end bearing, and the rotor component is supported and penetrates through the pump cover of the pump body under the combined action of the driving end bearing and the non-driving end bearing. The drive end bearing part is provided with a sliding bearing capable of bearing radial load to the maximum extent, and the non-drive end is provided with a combined bearing for positioning the double-row angular contact ball bearing and the sliding bearing. The bearing parts all adopt the bearing isolator to prevent impurities from entering the bearing parts, and the pump cover can be independently disassembled, so that the maintenance and the disassembly are convenient.
Description
The technical field is as follows:
the utility model relates to a single-stage, double suction, middle open, double volute, horizontal centrifugal pump suitable for the higher yellow river water of sand content is carried.
Background art:
more than 90% of silt in the yellow river mainly comes from the area from the bottom of the river mouth to the gantry and the areas upstream of the jing river, the north lode river and the wei river. The water amount of 60% and the silt amount of 80% all the year are concentrated from flood season, and the flood season is mainly concentrated from several rainstorm floods. The water is less and more sand is present, the centralized advantage of water and sand distribution is obvious, and the average sand content of the yellow river water for many years is as follows: 5.09kg/m 3; actually measuring the maximum sand content: 382kg/m 3; in view of the particularity of the quality of the yellow river water, the magic corrosion resistance of the pump for pumping irrigation is greatly tested. The common double-suction pump adopts a horizontal middle-open type pump body structure and a single-stage double-suction centrifugal impeller, a suction inlet and a discharge outlet of the pump body are positioned on the same central line, media are horizontally sucked and discharged, but a flow passage adopts a trapezoidal flow passage, the size is large, a pump body sealing ring does not have a throttling device, sand grains enter a gap between a port ring and the gap, the sand grains entering the gap rotate at a high speed along with the port ring, the abrasion of the port ring is easily caused, and the positioning failure of the port ring is caused. In order to improve the cavitation resistance of the conventional centrifugal pump, the influence of cavitation and efficiency is comprehensively considered by the blade inlet placing angle, the abrasion of the impeller is not considered too much in the design, and the conventional centrifugal pump does not resist the abrasion in the yellow river water pumping irrigation due to the influence of the factors, so that the operation and the maintenance are inconvenient.
The utility model has the following contents:
the utility model provides a not enough to prior art, the utility model provides a be applicable to single-stage, double suction, well open, double volute, horizontal centrifugal pump that yellow river water carried abrasion resistance for stable in structure and the erosion and corrosion of resistant yellow river water.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a corrosion-resistant centrifugal pump suitable for conveying yellow river water comprises a pump body, a pump cover, a throttling sealing ring and a rotor component;
the pump cover is detachably arranged on the pump body, the throttling sealing ring is fixed in a two-way mode through matching spigots of the pump body and the pump cover, and the impeller is fixed on the rotor component;
the rotor component is divided into a driving end and a non-driving end, the driving end is provided with a coupler which is connected with a driving machine, the non-driving end is provided with a positioning bearing which is used for axially positioning the whole rotor component, the bearing component is correspondingly divided into a driving end bearing and a non-driving end bearing, and the rotor component is supported and penetrates through the pump cover of the pump body under the combined action of the driving end bearing and the non-driving end bearing.
Preferably, the outer circle of the throttling sealing ring is provided with two labyrinth seals, and the inner side of the throttling sealing ring is provided with a pressure relief throttling device area.
Preferably, the drive end bearing is fixed to the pump body by a stud bolt and a locating pin.
Preferably, the sealing component seals the rotor component and is connected with the pump body and the pump cover through bolts.
The utility model discloses the mode of the original sealing ring locating pin location of throttle sealing ring cancellation is adjusted the locate mode for with the two tang cooperation two-way location of pump body pump cover to be equipped with labyrinth seal at the sealing ring excircle. The drive end bearing part is provided with a sliding bearing capable of bearing radial load to the maximum extent, and the non-drive end is provided with a combined bearing for positioning the double-row angular contact ball bearing and the sliding bearing. The bearing parts all adopt the bearing isolator to prevent impurities from entering the bearing parts, and the pump cover can be independently disassembled, so that the maintenance and the disassembly are convenient.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: a structure diagram of a single-stage, double-suction, middle-open, double-volute and horizontal centrifugal pump suitable for yellow river water conveying and abrasion resistance.
The specific implementation mode is as follows:
the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, a structure diagram of a single-stage, double-suction, middle-open, double-volute and horizontal centrifugal pump suitable for yellow river water conveying and abrasion resistance;
the utility model provides a single-stage, double suction, well open, double volute, horizontal centrifugal pump suitable for yellow river water is carried and is corroded, includes pump body 1, pump cover 2, rotor part 4 and installs impeller 3 in the pump body 1, throttle sealing ring 5 adopt with pump body pump cover double-spigot cooperation two-way location to be equipped with labyrinth seal at the sealing ring excircle and add O type circle sealed. The length of the impeller blades of the impeller 3 is arranged to reduce the extrusion coefficient, and the inlet side blades of the impeller 3 are thickened. The sealing system 6 adopts high-pressure sealing medium to shield the yellow river water with particles from entering the shaft sealing system. The drive end bearing member 7 is provided with a sliding bearing 8 capable of bearing a radial load to the maximum, and the non-drive end bearing member 9 is provided with a combined bearing 10 which positions a double row angular contact ball bearing and a sliding bearing. The bearing part is sealed and all adopts the bearing isolator to prevent that impurity from getting into the bearing part, and the axle is sealed through full protection axle sleeve, adopts O type circle to seal between axle sleeve and impeller, the axle, does not contact with the medium. An additional seal flushing system is also mounted on the pump cover.
Specifically, the impeller design adopts the mode of increasing the blade inlet lay angle and increasing the flow guide area of the impeller, the length of the impeller blades is arranged to reduce the extrusion coefficient, and the impeller adopts the design of thickening the inlet edge. The impeller of the centrifugal pump is made of high-quality duplex stainless steel, wear-resistant alloy is sprayed and welded on the opening ring, and a bi-component ceramic coating system is sprayed inside the runner to improve the anti-scouring performance of the runner. The driving end bearing is fixed on the pump body through a stud bolt and a positioning pin after being positioned with the pump body through a special seam allowance. The rotor component supports and penetrates through the pump body and the pump cover through the combined action of the driving end bearing component and the non-driving end bearing component. The throttling sealing ring is positioned and installed on the pump body through the matching bidirectional seam allowance of the pump body and the pump cover. And the excircle of the sealing ring is provided with labyrinth seal and O-shaped ring seal. The sealing component seals the rotor component and is connected with the pump body and the pump cover through bolts.
The utility model provides a wear-resisting single-stage, double suction, well open, double volute, horizontal centrifugal pump, the mode of the original sealing ring locating pin location of throttle sealing ring cancellation is adjusted the locate mode for with the two tang cooperation two-way location of pump body pump cover to be equipped with labyrinth seal at the sealing ring excircle. The impeller increases the blade inlet lay angle and increases the impeller water conservancy diversion area's mode, and the impeller blade length is arranged in order to reduce the extrusion coefficient, thickens impeller inlet limit. The fixed interval of the impeller and the throttling sealing ring is designed to be variable interval, and the entering of solid particles and the rapid sedimentation after the entering are prevented through the change of the sealing pressure drop. The impeller is made of high-quality duplex stainless steel, the mouth ring is made of wear-resistant alloy through butt welding, a bi-component ceramic coating system is sprayed inside the flow channel to improve the anti-scouring performance of the flow channel, and the sealing system is made of high-pressure sealing medium and shields yellow river water with particles from entering the shaft seal system. The drive end bearing part is provided with a sliding bearing capable of bearing radial load to the maximum extent, and the non-drive end is provided with a combined bearing for positioning the double-row angular contact ball bearing and the sliding bearing. The bearing part seals all adopt the bearing isolator to prevent that impurity from getting into the bearing part, and the axle is sealed through full protection axle sleeve, adopts O type circle to seal between axle sleeve and impeller, the axle, does not contact with the medium, and the pump cover can independently be dismantled for the maintenance is dismantled conveniently.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected to the inside of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a corrosion-resistant centrifugal pump suitable for yellow river water is carried, includes pump body, pump cover, throttle sealing ring, rotor part, its characterized in that:
the pump cover is detachably arranged on the pump body, the throttling sealing ring is fixed in a two-way mode through matching spigots of the pump body and the pump cover, and the impeller is fixed on the rotor component;
the rotor component is divided into a driving end and a non-driving end, the driving end is provided with a coupler which is connected with a driving machine, the non-driving end is provided with a positioning bearing which is used for axially positioning the whole rotor component, the bearing component is correspondingly divided into a driving end bearing and a non-driving end bearing, the rotor component supports and penetrates through a pump cover of the pump body under the combined action of the driving end bearing and the non-driving end bearing, the fixed interval of the impeller and the throttling sealing ring is designed to be variable interval, and solid particles are prevented from entering and rapidly settling after entering through the change of.
2. A corrosion resistant centrifugal pump adapted for use in the transportation of yellow river water as claimed in claim 1 wherein: the outer circle of the throttling sealing ring is provided with two labyrinth seals, and the inner side of the throttling sealing ring is provided with a pressure relief throttling device area.
3. A corrosion resistant centrifugal pump adapted for use in the transportation of yellow river water as claimed in claim 1 wherein: and the driving end bearing is fixed on the pump body through a stud bolt and a positioning pin.
4. A corrosion resistant centrifugal pump adapted for use in the transportation of yellow river water as claimed in claim 1 wherein: the sealing component seals the rotor component and is connected with the pump body and the pump cover through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921889854.4U CN211924479U (en) | 2019-11-05 | 2019-11-05 | Corrosion-resistant centrifugal pump suitable for yellow river water is carried |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921889854.4U CN211924479U (en) | 2019-11-05 | 2019-11-05 | Corrosion-resistant centrifugal pump suitable for yellow river water is carried |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924479U true CN211924479U (en) | 2020-11-13 |
Family
ID=73319159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921889854.4U Active CN211924479U (en) | 2019-11-05 | 2019-11-05 | Corrosion-resistant centrifugal pump suitable for yellow river water is carried |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924479U (en) |
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2019
- 2019-11-05 CN CN201921889854.4U patent/CN211924479U/en active Active
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