CN201461428U - Negative-pressure liquid circulation pump - Google Patents
Negative-pressure liquid circulation pump Download PDFInfo
- Publication number
- CN201461428U CN201461428U CN2009201035962U CN200920103596U CN201461428U CN 201461428 U CN201461428 U CN 201461428U CN 2009201035962 U CN2009201035962 U CN 2009201035962U CN 200920103596 U CN200920103596 U CN 200920103596U CN 201461428 U CN201461428 U CN 201461428U
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- China
- Prior art keywords
- liquid circulation
- circulation pump
- pressure liquid
- sealing element
- pump
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- 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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Abstract
The utility model discloses a negative-pressure liquid circulation pump, which comprises a motor, a pump shell, an impeller, a rotating shaft, a sealing bracket, a machinery sealing piece and a locating ring, wherein the machinery sealing piece and the locating ring are sheathed on the rotating shaft; the machinery sealing piece is positioned at the sealing bracket near the side of the motor; a sealing ring is arranged at the top part of the machinery sealing piece, and a spring is arranged at the lower part of the machinery sealing piece; and the spring is internally provided with a sealing gum cover. In the utility model, with the adoption of the structure, the negative-pressure liquid circulation pump can improve the working stability of the original liquid circulation pump and prolong the service life of the original liquid circulation pump.
Description
Technical field
The utility model relates to a kind of pump apparatus of the liquid circulation of using under vacuum or negative pressure state, especially relate to a kind of negative pressure liquid recycle pump.
Background technique
Liquid circulation pump is at the chemical industry of China at present, medicine, field of food is existing to be used widely, but because the seal rubber sleeve of traditional liquid recycle pump and seal ring are installed in liquid circulation pump near motor side, be sheathed in the rotating shaft of pump case inside, when liquid circulation pump under negative pressure state during machine operation, be operated in vacuum state, the seal rubber sleeve and the seal ring at sealing position have wearing and tearing to leak gas slightly, make the liquid circulation pump cisco unity malfunction, have shortened the life-span of original liquid circulation pump.
The model utility content
The purpose of this utility model provides a kind of negative pressure liquid recycle pump, can improve the working stability of original negative pressure liquid recycle pump, prolongs the working life of original negative pressure liquid recycle pump.
For achieving the above object, the utility model provides a kind of negative pressure liquid recycle pump, comprise motor, pump case, impeller, rotating shaft, sealed support, mechanical sealing element and positioning ring, described mechanical sealing element and described positioning ring are sheathed in the described rotating shaft, described mechanical sealing element is positioned at described sealed support near described motor side, described mechanical sealing element top is a seal ring, and the bottom is a spring, is seal rubber sleeve in the described spring.
Therefore, the utility model can improve the working stability of original liquid circulation pump by adopting the negative pressure liquid recycle pump of said structure, prolongs the working life of original liquid circulation pump.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model negative pressure liquid recycle pump embodiment's a structural representation.
Embodiment
Embodiment
Fig. 1 is the utility model negative pressure liquid recycle pump embodiment's a structural representation, as shown in Figure 1, comprise motor 1, pump case 2, impeller 3, rotating shaft 4, sealed support 5, mechanical sealing element 6 and positioning ring 7, described sealed support 5 is tightly connected together by screw and pump case 2. and described mechanical sealing element 6 is sheathed in the described rotating shaft 4 with described positioning ring 7, described mechanical sealing element 6 is positioned at described sealed support 5 near described motor 1 side. the negative pressure liquid recycle pump of under vacuum state, working, pump case 2 inside are negative pressure, pump case 2 outsides are normal pressure near motor side promptly, the mechanical sealing element of traditional liquid circulation pump is set in the rotating shaft of pump case inside, effect lower seal gum cover or seal ring at atmospheric pressure in the work have wearing and tearing to leak gas slightly, make the equipment cisco unity malfunction, shortened the life-span of original liquid circulation pump. the negative pressure liquid recycle pump of present embodiment, described mechanical sealing element 6 is arranged at described sealed support 5 near described motor 1 side, described mechanical sealing element 6 tops are seal ring 61, the bottom is a spring 62, in the spring 62 is seal rubber sleeve 63, seal rubber sleeve and rotating shaft sealing, seal ring and the sealing of sealed support contacting point. be vacuum in the pump case during owing to present embodiment work, therefore seal ring can be subjected to the compressing of normal pressure, high sealing performance is good more more for degree of vacuum in the pump case. and positioning ring 7 control springs 62 make mechanical sealing element 6 degree of tightness appropriateness. and mechanical sealing element described in the present embodiment and described sealed support contacting point can be carried out wear-resisting, smoothing processing, mechanical sealing element is dynamic in the work, sealed support is static, seal ring and described sealed support and rotating shaft junction are the sealing position, need liquid lubrication, present embodiment can not be worked under the state of no liquid. and present embodiment can suitably strengthen rotating shaft and sealed support junction, make liquid can satisfy the lubricated of sealing position, prolong the working life of present embodiment.
Therefore, the utility model can improve the working stability of original liquid circulation pump by adopting the negative pressure liquid recycle pump of said structure, prolongs the working life of original liquid circulation pump.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technological scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (1)
1. negative pressure liquid recycle pump, comprise motor, pump case, impeller, rotating shaft and sealed support, it is characterized in that also comprising: mechanical sealing element and positioning ring, described mechanical sealing element and described positioning ring are sheathed in the described rotating shaft, described mechanical sealing element is positioned at described sealed support near described motor side, described mechanical sealing element top is a seal ring, and the bottom is a spring, is seal rubber sleeve in the described spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201035962U CN201461428U (en) | 2009-07-01 | 2009-07-01 | Negative-pressure liquid circulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201035962U CN201461428U (en) | 2009-07-01 | 2009-07-01 | Negative-pressure liquid circulation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461428U true CN201461428U (en) | 2010-05-12 |
Family
ID=42388782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201035962U Expired - Fee Related CN201461428U (en) | 2009-07-01 | 2009-07-01 | Negative-pressure liquid circulation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
-
2009
- 2009-07-01 CN CN2009201035962U patent/CN201461428U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| CN111118525B (en) * | 2020-02-16 | 2023-08-15 | 扬州乐道能源科技有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
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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: 20100512 Termination date: 20110701 |