CN205331037U - Novel oil blanket of multistage water -feeding pump device - Google Patents
Novel oil blanket of multistage water -feeding pump device Download PDFInfo
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- CN205331037U CN205331037U CN201521139928.4U CN201521139928U CN205331037U CN 205331037 U CN205331037 U CN 205331037U CN 201521139928 U CN201521139928 U CN 201521139928U CN 205331037 U CN205331037 U CN 205331037U
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Abstract
The utility model discloses a novel oil blanket of multistage water -feeding pump device, including the rotating ring of quiet ring sum setting at jing huanneibi, the inner wall of rotating ring is followed the axial interval and is provided with two ring channels, is provided with O shape circle in the ring channel, and the external diameter of O shape circle is greater than the groove depth of ring channel, and the inner wall of quiet ring is provided with the locating part that limits rotating ring axial motion. The utility model discloses a rotating ring adopts two O shape circles sealed with the axle contact surface, and application effect is good, and sealed effect is superior to 2 times sealed effects of conventional axial plane, and the external diameter of O shape circle is greater than the groove depth of ring channel in addition, so O shape astragal rotating ring is rotatory, provides the more complete drive and the stability of optimization developments run duration rotating ring. In addition the utility model discloses the maintenance is simple, and simple to operate has improved the operation factor of safety of water pump, has eliminated outer leakages phenomenon, has effectively solved the leakage problem, has guaranteed power production's safety and steadily when reducing the maintenance repair of power plant volume again, has effectively improved the work efficiency of power plant.
Description
Technical field
This utility model relates to feed pump field, particularly to the oil-sealing arrangement of a kind of new multistage feed pump。
Background technology
Supercritical, ultra supercritical coal-fired unit have effect that is significant energy-conservation and that improve environment, have been widely studied in developed country and have applied。Feed pump is as the Important Auxiliary equipment in thermal power plant, and its reliability of operation directly affects the safe operation of power plant。According to the flow parameter high-lift, big of power plant, repair time demand short as far as possible, feed pump is almost adopt multistage, Double-casing (barrel-type) entirely。The lubricating oil system of feed pump is just particularly important, and oil-sealing arrangement therein is more important in the running of unit。
Shown in Fig. 1, current feed pump oil-sealing arrangement generally comprises stationary ring 10, swivel becket 20, snap ring 30 and the O 40 being arranged in swivel becket inwall cannelure。But this oil-sealing arrangement sealing effectiveness is poor, after unit operation is of long duration, it is easy for that oil mixing with water occurs, affects the safety of unit。And the installation form of this oil-sealing arrangement increases the installation difficulty coefficient of feed pump, adds maintenance difficulty。
Utility model content
The purpose of this utility model is in that the above-mentioned deficiency for existing oil-sealing arrangement and defect, it is provided that the oil-sealing arrangement of a kind of new multistage feed pump, to solve the problems referred to above。
This utility model is solved the technical problem that to realize by the following technical solutions:
A kind of oil-sealing arrangement of new multistage feed pump, including stationary ring and the rotating ring being arranged on described stationary ring inwall, it is characterized in that, the inwall of described rotating ring is axially spaced is provided with two cannelures, it is provided with O in described cannelure, the external diameter of described O is more than the groove depth of described cannelure, and the inwall of described stationary ring is provided with the locating part limiting described rotating ring axially-movable。
In a preferred embodiment of the present utility model, described locating part is the caging bolt being threaded through described stationary ring inwall, and described rotating ring outer wall is provided for the spacing cannelure that described caging bolt front end is stretched into。
In a preferred embodiment of the present utility model, the outer wall of described stationary ring is provided with and the spacing outer bulge loop of bearing body location。
In a preferred embodiment of the present utility model, the inwall of described stationary ring is provided with some inner convex platforms away from the inner side of described rotating ring is axially spaced, the internal diameter of described inner convex platform is slightly less than the internal diameter of described rotating ring, forms the oil-recovery tank connected with oil return opening between adjacent described inner convex platform。
Owing to have employed technical scheme as above, rotating ring of the present utility model adopts doulble O ring seal with axle contact surface, apply respond well, sealing effectiveness is better than conventional shaft face seal effect 2 times, and the external diameter of O is more than the groove depth of cannelure, so O drives rotating ring to rotate, it is provided that more complete drives and the stability of rotating ring during optimization dynamic operation。Additionally this utility model is easy to maintenance, easy for installation, improves the operating safety factor of water pump, eliminate external leakage phenomenon, efficiently solve leakage problem, while reducing power plant's ordinary maintenance amount, in turn ensure that the safety of power generation and stable, be effectively increased the work efficiency of power plant。
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
Fig. 1 is the structural representation of the oil-sealing arrangement of prior art。
Fig. 2 is the structural representation of a kind of embodiment of this utility model。
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, this utility model is further elucidated below。
The oil-sealing arrangement of a kind of new multistage feed pump shown in Figure 2, including stationary ring 100 and the rotating ring 200 being arranged on stationary ring 100 inwall。The inwall of rotating ring 200 is axially spaced is provided with two cannelures 210, O 220 it is provided with in cannelure 210, the external diameter of O 220 is more than the groove depth of cannelure 210, rotating ring 200 adopts doulble O ring seal with axle contact surface, applying respond well, sealing effectiveness is better than conventional shaft face seal effect 2 times, and the external diameter of O 220 is more than the groove depth of cannelure 210, so O 220 drives rotating ring 200 to rotate, it is provided that more complete drives and the stability of rotating ring 200 during optimization dynamic operation。
The outer wall of stationary ring 100 is provided with and the spacing outer bulge loop 101 of bearing body location, and the outer wall of stationary ring 100 is additionally provided with outer O 102。The inwall of stationary ring 100 is provided with the locating part 300 of restriction rotating ring 200 axially-movable, in the present embodiment, locating part 300 is the caging bolt 310 being threaded through stationary ring 100 inwall, rotating ring 200 outer wall is provided for the spacing cannelure 230 that caging bolt 310 front end is stretched into, caging bolt 310 can effectively limit rotating ring 200 axially-movable with coordinating of spacing cannelure 230, stops rotating ring 200 to separate with stationary ring 100。
The inwall of stationary ring 100 is provided with some inner convex platforms 110 away from the inner side of rotating ring 200 is axially spaced, the internal diameter of inner convex platform 110 is slightly less than the internal diameter of rotating ring 200, to ensure not interfere with the normal rotation of axle, between adjacent inner convex platform 110, form the oil-recovery tank 120 connected with oil return opening。Inner convex platform 110 in the present embodiment is four, forms three oil-recovery tanks 120a, 120b, 120c。When axle rotates, oil goes out from bearing bore splash, and slowing down through oil-recovery tank 120a flows into oil return opening。Some oil may pass through oil-recovery tank 120a。When elaioleucite moves axially so, due to the rotation of axle, they are subjected to the effect of centrifugal force。When elaioleucite radial motion is to oil-recovery tank 120b, oil return opening will be flow to by oil-recovery tank 120b。If still having remaining oil will be expelled to oil return opening oil-recovery tank 120a, 120b, 120c cambium layer stack structure from oil-recovery tank 120c, oil not over oil-recovery tank 120a certainly flow to oil return opening from oil-recovery tank 120b or oil-recovery tank 120a, these stepped constructions more efficiently, reliable。
Of the present utility model ultimate principle and principal character and of the present utility model advantage have more than been shown and described。Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope; this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model。This utility model claims scope and is defined by appending claims and equivalent thereof。
Claims (4)
1. the oil-sealing arrangement of a new multistage feed pump, including stationary ring and the rotating ring being arranged on described stationary ring inwall, it is characterized in that, the inwall of described rotating ring is axially spaced is provided with two cannelures, it is provided with O in described cannelure, the external diameter of described O is more than the groove depth of described cannelure, and the inwall of described stationary ring is provided with the locating part limiting described rotating ring axially-movable。
2. the oil-sealing arrangement of a kind of new multistage feed pump as claimed in claim 1, it is characterised in that described locating part is the caging bolt being threaded through described stationary ring inwall, and described rotating ring outer wall is provided for the spacing cannelure that described caging bolt front end is stretched into。
3. the oil-sealing arrangement of a kind of new multistage feed pump as claimed in claim 1, it is characterised in that the outer wall of described stationary ring is provided with and the spacing outer bulge loop of bearing body location。
4. the oil-sealing arrangement of a kind of new multistage feed pump as claimed in claim 1, it is characterized in that, the inwall of described stationary ring is provided with some inner convex platforms away from the inner side of described rotating ring is axially spaced, the internal diameter of described inner convex platform is slightly less than the internal diameter of described rotating ring, forms the oil-recovery tank connected with oil return opening between adjacent described inner convex platform。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139928.4U CN205331037U (en) | 2015-12-31 | 2015-12-31 | Novel oil blanket of multistage water -feeding pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139928.4U CN205331037U (en) | 2015-12-31 | 2015-12-31 | Novel oil blanket of multistage water -feeding pump device |
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| Publication Number | Publication Date |
|---|---|
| CN205331037U true CN205331037U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521139928.4U Active CN205331037U (en) | 2015-12-31 | 2015-12-31 | Novel oil blanket of multistage water -feeding pump device |
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| CN (1) | CN205331037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110603395A (en) * | 2017-05-12 | 2019-12-20 | 伊格尔工业股份有限公司 | Mechanical seal |
-
2015
- 2015-12-31 CN CN201521139928.4U patent/CN205331037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110603395A (en) * | 2017-05-12 | 2019-12-20 | 伊格尔工业股份有限公司 | Mechanical seal |
| US11187326B2 (en) | 2017-05-12 | 2021-11-30 | Eagle Industry Co., Ltd. | Mechanical seal |
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