CN203608011U - A large rotational inertia flywheel - Google Patents
A large rotational inertia flywheel Download PDFInfo
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- CN203608011U CN203608011U CN201320663684.4U CN201320663684U CN203608011U CN 203608011 U CN203608011 U CN 203608011U CN 201320663684 U CN201320663684 U CN 201320663684U CN 203608011 U CN203608011 U CN 203608011U
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- flywheel
- installing hole
- large rotating
- matrix
- rotating inertia
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
A large rotational inertia flywheel comprises a stainless steel flywheel basal body. A plurality of installing holes are distributed uniformly in the flywheel basal body. High-density tungsten alloy rods are installed inside the installing holes. A stainless steel sealing ring is installed on a side surface of the flywheel basal body. The flywheel basal body and the sealing ring are welded through the adoption of a sealed mode. The sealing ring covers the openings of the installing holes. The utility model provides the large rotational inertia flywheel. According to the large rotational inertia flywheel, in a condition that overall dimensions are same, the rotational inertia of a glandless pump rotor can be greatly raised, thereby satisfying running down flow requirements after the pump loses electric power.
Description
Technical field
The utility model relates to pump designing technique, particularly about a kind of large rotating inertia flywheel.
Background technology
The rotor moment of inertia of existing glandlesspump is generally less, Single Phase Metal flywheel is set to improve the moment of inertia of rotor in partial design scheme.In these designs, glandlesspump is due to the restriction of the size of the pump housing own, and large-sized flywheel cannot be set in motor casing to obtain larger rotor moment of inertia.On the other hand, because flywheel is immersed in operation medium, need bear harsher operational environment.Meanwhile, for the structural intergrity of guaranteeing flywheel produces inner missile to prevent that flywheel is damaged, and then pump assembly is produced to heavy damage, flywheel material can only be selected high-intensity stainless steel.Therefore, after pump assembly dead electricity, because rotor moment of inertia is compared with low and required running down inertia cannot be provided, cannot meet the requirement to pump dead electricity running down flow in some practical engineering application.
Utility model content
In view of this, the utility model object is to provide a kind of large rotating inertia flywheel, and this large rotating inertia flywheel can significantly improve the moment of inertia of glandlesspump rotor in the situation that of identical appearance size, thereby meets the running down traffic requirement after pump dead electricity.
For reaching above-mentioned advantage, the utility model provides a kind of large rotating inertia flywheel, comprises stainless steel flywheel matrix, on described flywheel matrix, is evenly equipped with multiple installing holes, and high-specific gravity tungsten alloy rod is installed in described installing hole.
In an embodiment of the present utility model, the side of described flywheel matrix is provided with stainless steel sealing ring, and described flywheel matrix adopts seal weld to be connected with described sealing ring, and described sealing ring covers the opening of described installing hole.
In an embodiment of the present utility model, described installing hole runs through described flywheel matrix along the thickness direction of described flywheel matrix, and the length of described high-specific gravity tungsten alloy rod equates with the thickness of described flywheel matrix.
In an embodiment of the present utility model, described installing hole is independent separately, and is arranged in multiple concentric circless around the main shaft of described flywheel, and described installing hole equidistantly distributes on each concentric circles.
In an embodiment of the present utility model, the diameter that is positioned at the described installing hole of outer ring is greater than the diameter of the described installing hole that is positioned at inner ring.
In an embodiment of the present utility model, described installing hole is arranged in 2 concentric circless around the main shaft of described flywheel, wherein equates at the center of the installing hole of inner ring and adjacent two distances between the center of the installing hole of outer ring.
In an embodiment of the present utility model, the cross section of described installing hole and described high-specific gravity tungsten alloy rod is axisymmetric shape.
In an embodiment of the present utility model, the cross section of described installing hole and described high-specific gravity tungsten alloy rod is circular.
In an embodiment of the present utility model, described high-specific gravity tungsten alloy rod adopts tight fit combination with corresponding described installing hole.
In an embodiment of the present utility model, the center of described flywheel matrix is provided with axis hole, the inward flange that the width of described sealing ring is greater than the installing hole of innermost circle arrives the outer peripheral distance of the installing hole of outmost turns, and is less than described axis hole edge to the outer peripheral distance of described flywheel matrix.
In sum, the large rotating inertia flywheel utilization that the utility model provides is offered installing hole in flywheel matrix, and the mode of inserting high-specific gravity tungsten alloy rod in installing hole has increased the moment of inertia of flywheel, the moment of inertia that makes flywheel of the present utility model is much larger than the moment of inertia of pure stainless steel flywheel with identical appearance size, and significantly improved the moment of inertia of glandlesspump rotor, thereby meet the running down traffic requirement after pump dead electricity.
Accompanying drawing explanation
Figure 1 shows that the part cross-sectional schematic of large rotating inertia flywheel in embodiment of the utility model.
Figure 2 shows that the schematic diagram of the flywheel matrix of large rotating inertia flywheel in embodiment of the utility model.
Embodiment
Technological means and effect of taking for reaching predetermined utility model object for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of large rotating inertia flywheel, structure, feature and effect thereof according to the utility model proposes, be described in detail as follows.
Figure 1 shows that the part cross-sectional schematic of large rotating inertia flywheel in embodiment of the utility model.As shown in Figure 1, large rotating inertia flywheel of the present utility model comprises stainless steel flywheel matrix 100, high-specific gravity tungsten alloy rod 400 and stainless steel sealing ring 500.Wherein, stainless steel flywheel matrix 100 is discoid, and as shown in Figure 2, its center is provided with axis hole 200, in axis hole 200, is inserted with rotating shaft, drives large rotating inertia flywheel rotation of the present utility model by rotating shaft.Understandable, the utility model also can arrange axis hole, and adopts the mode of end face toe joint to connect large rotating inertia flywheel of the present utility model and rotating shaft.In the present embodiment, between the edge of axis hole 200 and the outward flange of flywheel matrix 100, be evenly equipped with multiple installing holes 300 independently separately.In the present embodiment, around axis hole 200 center, (being the main shaft of flywheel) is arranged in multiple concentric circless to described multiple installing holes 300, and preferred, concentrically ringed number is 2.On concentric circles R1, equidistantly distributed multiple installing holes 310, on concentric circles R2, equidistantly distributed multiple installing holes 320, and the diameter of installing hole 310 is greater than the diameter of installing hole 320.Meanwhile, the distance between the installing hole 320 center of inner ring and adjacent two installing hole 310 centers in outer ring equates, the line of above-mentioned 3 is isosceles triangle.
Incorporated by reference to Fig. 1 and Fig. 2, installing hole 300 runs through the both sides end face of flywheel matrix 100 along the thickness A direction of flywheel matrix 100.High-specific gravity tungsten alloy rod 400 is fixed in installing hole 300 in friction tight mode, and the length of high-specific gravity tungsten alloy rod 400 equates with the thickness of flywheel matrix 100.Particularly, high-specific gravity tungsten alloy rod 400 comprises the high-specific gravity tungsten alloy rod 410 that is arranged in installing hole 310 and the high-specific gravity tungsten alloy rod 420 that is arranged in installing hole 320.Preferably, in the present embodiment, the quantity of the upper high-specific gravity tungsten alloy rod distributing of concentric circles R1 and R2 is 16.It should be noted that, high-specific gravity tungsten alloy be a class take tungsten as matrix (W content 79-97%), and be added with the alloy of the element such as Ni, Cu, Co, Cr composition, including, but not limited to W-Ni-Fe, W-Ni-Cu and WNiCuFe alloy.Installing hole 300 is zhou duicheng tuxing with the cross section of high-specific gravity tungsten alloy rod 400, for example, isosceles triangle, square, regular pentagon, regular hexagon etc., preferred, in the present embodiment, be circle.
Connect above-mentionedly, stainless steel sealing ring 500 adopts seal weld to be connected with flywheel matrix 100.The width of stainless steel sealing ring 500 is greater than the inward flange of inner ring installing hole 320 to the outer peripheral distance of outer ring installing hole 310, and is less than axis hole 200 edges to the outer peripheral distance of flywheel matrix 100, so that sealing ring 500 can cover the opening of installing hole 300.
In sum, the large rotating inertia flywheel that the present embodiment provides, the arrangement design of its installing hole can increase volume and the quality of high-specific gravity tungsten alloy rod to greatest extent, simultaneously, cylindrical high-specific gravity tungsten alloy rod can reduce the stress concentration phenomenon of stainless steel base tapping to greatest extent, obtain good structural strength, and columniform high-specific gravity tungsten alloy rod machinability is better.When density is 7.85g/cm
3stainless steel flywheel matrix in insert density be about 19g/cm
3high-specific gravity tungsten alloy when rod, the comparable pure stainless steel flywheel of primary Calculation increases by approximately 90% moment of inertia.In addition, between stainless steel sealing ring and flywheel matrix, adopt seal weld to be connected, can isolate medium in high-specific gravity tungsten alloy rod and pump, guarantee that high-specific gravity tungsten alloy rod can not contact with medium fluid.Therefore, the utility model is under the prerequisite of running down inertia that improves identical appearance size flywheel, can meet again the corrosion resistance requirement of flywheel in harsh running environment, and the structural intergrity of assurance flywheel during high-speed cruising, prevent the generation of inner missile, there is good structural stability and longer useful life.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (10)
1. a large rotating inertia flywheel, comprises stainless steel flywheel matrix, it is characterized in that, on described flywheel matrix, is evenly equipped with multiple installing holes, and high-specific gravity tungsten alloy rod is installed in described installing hole.
2. large rotating inertia flywheel as claimed in claim 1, is characterized in that: the side of described flywheel matrix is provided with stainless steel sealing ring, and described flywheel matrix adopts seal weld to be connected with described sealing ring, and described sealing ring covers the opening of described installing hole.
3. large rotating inertia flywheel as claimed in claim 1, is characterized in that: described installing hole runs through described flywheel matrix along the thickness direction of described flywheel matrix, and the length of described high-specific gravity tungsten alloy rod equates with the thickness of described flywheel matrix.
4. large rotating inertia flywheel as claimed in claim 1, is characterized in that: described installing hole is independent separately, and is arranged in multiple concentric circless around the main shaft of described flywheel, and described installing hole equidistantly distributes on each concentric circles.
5. large rotating inertia flywheel as claimed in claim 4, is characterized in that: the diameter that is positioned at the described installing hole of outer ring is greater than the diameter of the described installing hole that is positioned at inner ring.
6. large rotating inertia flywheel as claimed in claim 4, it is characterized in that: the be diversion main shaft of wheel of described installing hole is arranged in 2 concentric circless, wherein equate at the center of the installing hole of inner ring and adjacent two distances between the center of the installing hole of outer ring.
7. large rotating inertia flywheel as claimed in claim 1, is characterized in that: the cross section of described installing hole and described high-specific gravity tungsten alloy rod is axisymmetric shape.
8. large rotating inertia flywheel as claimed in claim 7, is characterized in that: the cross section of described installing hole and described high-specific gravity tungsten alloy rod is for circular.
9. large rotating inertia flywheel as claimed in claim 1, is characterized in that: described high-specific gravity tungsten alloy rod adopts tight fit combination with corresponding described installing hole.
10. large rotating inertia flywheel as claimed in claim 2, it is characterized in that: the center of described flywheel matrix is provided with axis hole, the inward flange that the width of described sealing ring is greater than the installing hole of innermost circle arrives the outer peripheral distance of the installing hole of outmost turns, and is less than described axis hole edge to the outer peripheral distance of described flywheel matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663684.4U CN203608011U (en) | 2013-10-25 | 2013-10-25 | A large rotational inertia flywheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663684.4U CN203608011U (en) | 2013-10-25 | 2013-10-25 | A large rotational inertia flywheel |
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| Publication Number | Publication Date |
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| CN203608011U true CN203608011U (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320663684.4U Ceased CN203608011U (en) | 2013-10-25 | 2013-10-25 | A large rotational inertia flywheel |
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| CN (1) | CN203608011U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795931A (en) * | 2015-04-27 | 2015-07-22 | 上海电气凯士比核电泵阀有限公司 | Bimetal structure flywheel for nuclear main pump |
| WO2019051203A1 (en) * | 2017-09-07 | 2019-03-14 | American Superconductor Corporation | High temperature superconductor generator with increased rotational inertia |
| CN110067831A (en) * | 2019-04-02 | 2019-07-30 | 中国北方发动机研究所(天津) | A kind of damping vibration combination flywheel |
| US10669001B2 (en) | 2017-12-11 | 2020-06-02 | American Superconductor Corporation | Hybrid electrical and mechanical propulsion and energy system for a ship |
-
2013
- 2013-10-25 CN CN201320663684.4U patent/CN203608011U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795931A (en) * | 2015-04-27 | 2015-07-22 | 上海电气凯士比核电泵阀有限公司 | Bimetal structure flywheel for nuclear main pump |
| WO2019051203A1 (en) * | 2017-09-07 | 2019-03-14 | American Superconductor Corporation | High temperature superconductor generator with increased rotational inertia |
| US10601299B2 (en) | 2017-09-07 | 2020-03-24 | American Superconductor Corporation | High temperature superconductor generator with increased rotational inertia |
| US10669001B2 (en) | 2017-12-11 | 2020-06-02 | American Superconductor Corporation | Hybrid electrical and mechanical propulsion and energy system for a ship |
| CN110067831A (en) * | 2019-04-02 | 2019-07-30 | 中国北方发动机研究所(天津) | A kind of damping vibration combination flywheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20190130 Decision number of declaring invalidation: 38740 Granted publication date: 20140521 |
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| IW01 | Full invalidation of patent right |