CN2493760Y - Axial intermediate open standard double-suction pump - Google Patents
Axial intermediate open standard double-suction pump Download PDFInfo
- Publication number
- CN2493760Y CN2493760Y CN 01239077 CN01239077U CN2493760Y CN 2493760 Y CN2493760 Y CN 2493760Y CN 01239077 CN01239077 CN 01239077 CN 01239077 U CN01239077 U CN 01239077U CN 2493760 Y CN2493760 Y CN 2493760Y
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- China
- Prior art keywords
- pump
- suction pump
- seal
- double suction
- axle
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- Expired - Fee Related
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Abstract
An axial intermediate open standard double-suction pump includes a shaft and shaft housing, a pump body and a pump cover axially arranged, a pump body intermediate flange and an impeller driven to rotate by the shaft. The outer circle of the shaft housing is provided with a mechanical seal pressed tightly through a seal gland bush. The two end of the shaft are respectively supported with a bearing body and a pump foot supporting the whole double-suction pump. The axial intermediate open standard double-suction pump also includes an independent integral seal body arranged on the position that the pump body, the pump cover and the shaft are contacted. The seal gland bush and the seal body adopt spigot position. The utility model adopts an integral seal body with the advantages of no leakage and good seal performance.
Description
The utility model relates to a kind of industrial water pump, relates in particular to the accurate double suction pump of a kind of middle opening of bid.
In the industrial water supply processing procedure, particularly waterworks, drainage pumping plant, power station, industrial water supply system, fire-fighting system, shipping industry and other industrial field are in production processes such as clear water supercharging, conveying and circulation, all utilize the impeller rotation of motor drives pump inevitably, realize the reciprocating of water.
Conventional at present S type, SH type, the SA type double suction pump that uses is the product of China's design seventies, the pump of this structure adopts structure as shown in Figure 1, comprise the pump housing 11, pump cover 12, impeller 13 and 14 4 main composition parts of axle, the outer circumferential face of axle is provided with axle sleeve 15, mechanical seal 16 is installed on the excircle of axle sleeve 15, by sealing gland 17 mechanical seal 16 is compressed, a bearing support 19 is respectively supported at the two ends of axle 14, and the pump pin 18 that supports whole double suction pump.When 14 rotations of motor drives axle, the impeller 13 corresponding rotations that match with axle 14, water enters in the pump housing 11 by two suction inlets of impeller 13, leaves pump from an outlet then.Because what this middle-opening pump pump housing, pump cover adopted is horizontal middle open type structure, when mechanical seal is selected in the shaft sealing of pump for use, end face after requiring sealing gland and the pump housing and pump cover attaching together should contact reliably, and seal by sealing gasket, because the pump housing and the pump cover of conventional construction are two independently parts, so two part end faces can not guarantee that on same plane sealing just becomes the main problem that this middle-opening pump runs in using process like this during assembling.
Problem in view of the prior art existence, the purpose of this utility model is, provide a kind of axially middle opening of bid accurate double suction pump, adopt independently integral seal body part, and be used some conventional sealing techniquies, eliminate in the conventional construction because the end face injustice that the size error of the pump housing and two parts of pump cover causes, thereby solve the leakage problem of end face seal.
Another purpose of the present utility model is, a kind of double suction pump of horizontal-vertical double-purpose structure is provided, compact structure, and floor space is little.
To achieve these goals, the accurate double suction pump of a kind of axially middle opening of bid of the utility model, described double suction pump comprises axle and axle sleeve, the pump housing that axially sets up separately and pump cover, open flange in the pump housing, impeller by the axle driven rotary, go up in sleeve outer circle week mechanical seal is installed, by sealing gland described mechanical seal is compressed, a bearing support is respectively supported at the two ends of described axle, and the pump pin that supports whole double suction pump, it is characterized in that, the accurate double suction pump of described axially middle opening of bid also comprises an independent integral seal body, be positioned at the described pump housing and pump cover and axle position contacting, described sealing gland and seal adopt the seam location.
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 provides the schematic cross-section of traditional double sucking pump structure;
Fig. 2 provides the schematic cross-section of the utility model structure;
Fig. 3 provides the floor map of the seal that the utility model adopts among Fig. 2;
Fig. 4 provides A-A sectional view shown in Figure 3;
Fig. 5 provides another embodiment's of the utility model structural representation.
In conjunction with Fig. 2, Fig. 3 and shown in Figure 4, there is shown generalized section according to axial double suction pump of the present utility model.This double suction pump is mainly by the pump housing 21; pump cover 22; 23 24 in impeller; axle sleeve 25; sealing 26; sealing gland 27; pump pin 44 formations such as grade of bearing support 20 and support entire pump; its middle pump body 21 and pump cover 22 all adopt horizontal middle open type structure; the external motor of one end (being illustrated as right-hand member) of axle 24; a bearing support 20 is respectively supported at two ends; the outer circumferential face of axle 24 is provided with an axle sleeve that shields 25; the pump housing and the cooperate part of pump cover two-part at the traditional double sucking pump with axle; set up an independent integral seal body 28; sealing body 28 adopts mechanical seal 26 with the gap of axle sleeve 25; sealing body 28 is provided with one 0 shape seal rings 29 with the outer surface that the pump housing 21 contacts with pump cover 22; radial compaction by the pump housing 21 and pump cover 22 is realized sealing; sealing gland 27 is located closing by seam 30 with integral seal body 28; the junction is provided with sealing gasket between sealing gland 27 and seal 28 as required, the uneven problem of end face that causes with the size error of these two parts of thorough elimination.
Can also know from Fig. 3 that in addition the seal 28 on the axial direction is circular cavity, at seal 28 and the outer surface that the pump housing 21 contacts with pump cover 22, respectively be provided with locating stud 31, seal 28 fixes by locating stud and the pump housing 21 and pump cover 22.
Fig. 5 provides another embodiment's of the utility model schematic representation.Be depicted as the double suction pump of a horizontal-vertical double-purpose, comprise that one is used to support the electric machine support 43 of motor, and one is square with the axis and be connected in the base 41 of motor opposite side, open flange 42 in the double suction pump and link to each other with base 41, pump pin 44 links to each other with electric machine support 43.This vertical structure has utilized and has opened flange 42 and the 44 conduct supports of pump pin in the pump housing.Compact structure reduces floor space, and saves engineering cost.
From the foregoing description, know,, solved the relatively poor problem of sealability in the conventional construction preferably, covered S in the prior art, SA, SH pump performance on the performance fully by adopting independently integral seal body structure.
More than all embodiments only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technological schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (5)
1, the accurate double suction pump of a kind of axially middle opening of bid, described double suction pump comprise open flange in axle and axle sleeve, the pump housing that axially sets up separately and pump cover, the pump housing, by the impeller of axle driven rotary, go up in sleeve outer circle week mechanical seal is installed, by sealing gland described mechanical seal is compressed, a bearing support is respectively supported at the two ends of described axle, and the pump pin that supports whole double suction pump, it is characterized in that, the accurate double suction pump of described axially middle opening of bid also comprises an independent integral seal body, be positioned at the described pump housing and pump cover and axle position contacting, described sealing gland and seal adopt the seam location.
2, the accurate double suction pump of axially middle opening of bid according to claim 1 is characterized in that described seal is provided with an O-ring seals with the outer peripheral surface that the pump housing contacts with pump cover.
3, according to claim 1 and 2 axially in the accurate double suction pump of opening of bid, it is characterized in that described seal is fixed by locating stud and the pump housing and pump cover.
4, the accurate double suction pump of axially middle opening of bid according to claim 3 is characterized in that, passes through the pad sealing between described sealing gland and the seal.
5, the accurate double suction pump of axially middle opening of bid according to claim 1, it is characterized in that, described double suction pump comprises that also one is used to support the electric machine support of motor, and one is square with the axis and be connected in the base of motor opposite side, open flange in the described double suction pump and link to each other with base, described pump pin links to each other with electric machine support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239077 CN2493760Y (en) | 2001-11-29 | 2001-11-29 | Axial intermediate open standard double-suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01239077 CN2493760Y (en) | 2001-11-29 | 2001-11-29 | Axial intermediate open standard double-suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2493760Y true CN2493760Y (en) | 2002-05-29 |
Family
ID=33651589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01239077 Expired - Fee Related CN2493760Y (en) | 2001-11-29 | 2001-11-29 | Axial intermediate open standard double-suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2493760Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392250C (en) * | 2005-05-19 | 2008-06-04 | 沈阳市耐蚀合金泵厂 | Central-mounted single-stage and multi-stage double-suction turbine synchronous suction and discharge pump |
-
2001
- 2001-11-29 CN CN 01239077 patent/CN2493760Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392250C (en) * | 2005-05-19 | 2008-06-04 | 沈阳市耐蚀合金泵厂 | Central-mounted single-stage and multi-stage double-suction turbine synchronous suction and discharge pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020529 Termination date: 20091229 |