CN2886134Y - Leakage-free pump special for plate frame press filter for use in chemical industry - Google Patents
Leakage-free pump special for plate frame press filter for use in chemical industry Download PDFInfo
- Publication number
- CN2886134Y CN2886134Y CN 200620000079 CN200620000079U CN2886134Y CN 2886134 Y CN2886134 Y CN 2886134Y CN 200620000079 CN200620000079 CN 200620000079 CN 200620000079 U CN200620000079 U CN 200620000079U CN 2886134 Y CN2886134 Y CN 2886134Y
- Authority
- CN
- China
- Prior art keywords
- pump housing
- pump body
- impeller
- pump
- chemical industry
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a special pump for a non-leak chemical industry plate and frame pressing filter, which comprises a pump body and impellers driven by an output axis of an engine in the pump body, wherein radial absorption openings which are provided on the lateral walls of the pump body on one side of the rear terminal surfaces of the impellers, the interior flow cavity equipped on the rear terminal surface of the impellers by the pump body and the radial outlet equipped corresponding to impellers by the pump body communicate with each other, and an air-proof assembly is provided between the axis sleeve behind the interior flow cavity and the bump body. The above air-proof assembly becomes a V-shaped air-proof ring of an upward opening impeller made from graphite filling perfluoroethylene between the pump body and the axis sleeve, and more than one V-shaped air-proof ring is axle-cascaded and combined. The utility model has the beneficial effects of novel sealing with the combination of negative sealing and novel V-shaped sealing, excellent sealing performance, prevention of medium leak, promotion of operation efficiency and prolonging the service life.
Description
Technical field:
The utility model relates to a kind of improvement of leaking chemical industry plate and frame filter press dedicated pump of not having, particularly a kind of improvement of not having leakage chemical industry plate and frame filter press dedicated pump seal arrangement.
Background technique:
In the various pumps of fed sheet of a media, to reveal from the gap of the pump housing and pump shaft in order to stop medium, various pumps all must be provided with seal arrangement.At present, the horizontal centrifugal pump of single-stage, single suction is axially to suck radially to discharge, because the centrifugal action during the impeller rotation, produce negative pressure at the suction port place and suck medium, sealing part at the impeller back side produces the high pressure with respect to external environment, thereby the pressure difference of sealing both ends is increased, cause any seal form all can produce the leakage of medium.
Summary of the invention
The utility model provides a kind of nothing to leak chemical industry plate and frame filter press dedicated pump, the novel seal that utilizes negative-pressure sealing to combine with Novel V-shaped sealing, and good seal performance prevents the leakage of medium, increases work efficiency, and increases the service life.
For reaching above-mentioned purpose, the utility model adopts following technological scheme:
A kind of nothing is leaked chemical industry plate and frame filter press dedicated pump, comprise the pump housing and be contained in the impeller that is driven by motor output shaft in the pump housing, it is characterized in that: radially suction port, the pump housing that the pump housing sidewall of impeller ear end face one side is offered is positioned at the flow process chamber at impeller ear end face place, the radially exhaust port three that pump housing correspondence impeller location is offered is communicated with, and is provided with seal assembly between the pump housing and the axle sleeve after interior flow process chamber.
Above-mentioned seal assembly is to be located at the v-ring of the opening of the graphite-filled tetrafluoroethylene material between the pump housing and the axle sleeve towards impeller, the axial series combination of more than one v-ring.
The usefulness of technique scheme is: the mode of media flow is changed into radially sucking from the impeller ear end face again discharge from exhaust port, because the centrifugal action during the impeller rotation, then the impeller ear end face also is that the impeller back becomes negative pressure, medium is lower than the external environment condition pressure of the seal assembly the other end, so can't leak.V-ring since opening towards impeller, when impeller rotate, owing to opening end pressure less than bottom pressure, the V-arrangement opening is compressed, seal ring is suspended between the pump housing and the axle sleeve, has avoided friction; When impeller stopped the rotation, v-ring was owing to elasticity is opened, and contact plays seal action between the pump housing and axle sleeve.Because many group axial series are used in combination, the life-span is longer, favorable sealing property.Graphite-filled tetrafluoroethylene material is more wear-resisting, high temperature resistant than other materials.
Description of drawings
Fig. 1 is the utility model structural representation
Embodiment
As shown in Figure 1, the utility model comprises the impeller 2 that is driven by motor shaft 3 in the pump housing 1 and the pump housing 1, the radially suction port 11 that the pump housing 1 sidewall of impeller 2 ear end faces one side is offered, the pump housing 1 is positioned at the flow process chamber 12 at impeller 2 ear end face places, radially exhaust port 13 threes that the pump housing 1 corresponding impeller 2 positions are offered are communicated with, the position of the pump housing 1 corresponding impeller 2 front ends is by cover plate 14 sealings, the opening of graphite-filled tetrafluoroethylene material that is provided with the combination of 3 axial series between the pump housing 1 and the axle sleeve 31 after interior flow process chamber 12 is installed with gland 15 with axial restraint v-ring 4 towards the v-ring 4 of impeller on the pump housing 1 between v-ring 4 and the interior flow process chamber 12.
Claims (2)
1, a kind of nothing is leaked chemical industry plate and frame filter press dedicated pump, comprise the pump housing and be contained in the impeller that is driven by motor output shaft in the pump housing, it is characterized in that: radially suction port, the pump housing that the pump housing sidewall of impeller ear end face one side is offered is positioned at the flow process chamber at impeller ear end face place, the radially exhaust port three that pump housing correspondence impeller location is offered is communicated with, and is provided with seal assembly between the pump housing and the axle sleeve after interior flow process chamber.
2, a kind of nothing as claimed in claim 1 is leaked chemical industry plate and frame filter press dedicated pump, it is characterized in that: described seal assembly is to be located at the v-ring of the opening of the graphite-filled tetrafluoroethylene material between the pump housing and the axle sleeve towards impeller, the axial series combination of more than one v-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000079 CN2886134Y (en) | 2006-01-05 | 2006-01-05 | Leakage-free pump special for plate frame press filter for use in chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000079 CN2886134Y (en) | 2006-01-05 | 2006-01-05 | Leakage-free pump special for plate frame press filter for use in chemical industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2886134Y true CN2886134Y (en) | 2007-04-04 |
Family
ID=37961224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000079 Expired - Fee Related CN2886134Y (en) | 2006-01-05 | 2006-01-05 | Leakage-free pump special for plate frame press filter for use in chemical industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2886134Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240283A (en) * | 2015-09-22 | 2016-01-13 | 苏州普京真空技术有限公司 | Vacuum mixed-flow pump |
| CN110552889A (en) * | 2019-10-14 | 2019-12-10 | 蒋友锋 | Leakage-free centrifugal pump |
-
2006
- 2006-01-05 CN CN 200620000079 patent/CN2886134Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240283A (en) * | 2015-09-22 | 2016-01-13 | 苏州普京真空技术有限公司 | Vacuum mixed-flow pump |
| CN110552889A (en) * | 2019-10-14 | 2019-12-10 | 蒋友锋 | Leakage-free centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |