CN203130497U - Mechanical sealing device of rotor pump - Google Patents
Mechanical sealing device of rotor pump Download PDFInfo
- Publication number
- CN203130497U CN203130497U CN 201320013349 CN201320013349U CN203130497U CN 203130497 U CN203130497 U CN 203130497U CN 201320013349 CN201320013349 CN 201320013349 CN 201320013349 U CN201320013349 U CN 201320013349U CN 203130497 U CN203130497 U CN 203130497U
- Authority
- CN
- China
- Prior art keywords
- pump housing
- ring
- cavity
- rotating shaft
- face
- 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 - Lifetime
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
本实用新型公开了一种转子泵的机械密封装置，包括设在泵体（1）上的转轴（2）、固定在泵体（1）端面上的密封座（3）、动环（4）、设在转轴（2）外的静环（5）以及弹簧（6）；所述静环（5）周向限位在密封座（3）内，所述弹簧（6）设在转轴（2）外，一端与静环（5）相抵，另一端与密封座（3）的内端面相抵，所述静环（5）的端面通过弹簧（6）压配合在动环（4）的端面上；所述动环（4）与泵体（1）之间的空腔通过回流通道与泵体（1）容置两个转子的腔体的低压区连通。该转子泵的机械密封装置能增加动环和静环的密封效果和使用寿命，同时还能增加对动环和静环的冷却效果。
The utility model discloses a mechanical sealing device of a rotor pump, which comprises a rotating shaft (2) arranged on a pump body (1), a sealing seat (3) fixed on the end surface of the pump body (1), and a moving ring (4). , The static ring (5) and the spring (6) arranged outside the rotating shaft (2); ), one end is against the static ring (5), and the other end is against the inner end face of the seal seat (3), and the end face of the static ring (5) is press-fitted on the end face of the moving ring (4) ; The cavity between the moving ring (4) and the pump body (1) communicates with the low-pressure area of the cavity of the pump body (1) containing the two rotors through the return passage. The mechanical seal device of the rotor pump can increase the sealing effect and service life of the moving ring and the static ring, and can also increase the cooling effect of the moving ring and the static ring.
Description
Technical field
The utility model relates to the rotor pump technical field, specifically is a kind of mechanical seal device of rotor pump.
Background technique
Rotor pump is selected different seal form for use according to the medium that is transferred, and in general, dielectric viscosity is high, and what can solidify when temperature is low selects packing seal for use, other select mechanical seal for use.The mechanical seal device of rotor pump is installed in the cavity position that the pump housing is stretched out in rotating shaft, and it comprises the rotating shaft that is located on the pump housing, be fixed on sealing seat on the pump housing end face, be located at rotating ring in the hole of the pump housing, be located at rotating shaft outer stationary ring and spring; Described rotating ring is actively socketed in the rotating shaft, described stationary ring is the inside of spacing sealing seat circumferentially, and described spring is located at outside the rotating shaft, and an end and stationary ring offset, the interior edge face of the other end and sealing seat offsets, and the end face of described stationary ring is force-fitted on the end face of rotating ring by spring.More than the mechanical seal device of this construction rotor pump have following shortcoming: because after the medium material feeding mouth of carrying flows into, through the low pressure area of the cavity of ccontaining two rotors of the pump housing by after the effect of two rotors to the zone of high pressure, flow out from discharge port again, the medium of Shu Songing can flow into the cavity between rotating ring and the pump housing from the gap between the outer wall of pump housing axis hole wall and rotating ring simultaneously, because the medium of carrying comes out from the zone of high pressure, like this rotating ring and the stationary ring that seals there is bigger extruding force, long-term work influences sealing effect and the working life of rotating ring and stationary ring.Again because after medium enters cavity between rotating ring and the pump housing, in case after too much piling up, can't circulate, persistently overheating, just reduced the cooling effect of medium to rotating ring and stationary ring.
The model utility content
The technical problems to be solved in the utility model is, is provided a kind of sealing effect and working life that can increase rotating ring and stationary ring, can also increase the mechanical seal device to the rotor pump of the cooling effect of rotating ring and stationary ring simultaneously.
The technical solution of the utility model is, a kind of mechanical seal device with rotor pump of following structure is provided, comprise the rotating shaft that is located on the pump housing, be fixed on sealing seat on the pump housing end face, be located in the axis hole of the pump housing and with rotating shaft circumferentially spacing rotating ring, be located at rotating shaft outer stationary ring and spring; Described stationary ring is circumferentially spacing in sealing seat, and described spring is located at outside the rotating shaft, and an end and stationary ring offset, and the interior edge face of the other end and sealing seat offsets, and the end face of described stationary ring is force-fitted on the end face of rotating ring by spring; Cavity between described rotating ring and the pump housing is communicated with by the low pressure area of the cavity of ccontaining two rotors of return flow line and the pump housing.
After adopting above structure, the utility model compared with prior art, have the following advantages: because the low pressure area of the cavity between described rotating ring and the pump housing by the cavity of ccontaining two rotors of return flow line and the pump housing is communicated with, the medium that flows into the cavity between rotating ring and the pump housing can be squeezed to again the low pressure area of the cavity of ccontaining two rotors of the pump housing like this through the return flow line, realized recycling, reduce the extruding force to its seal action rotating ring and stationary ring like this, can increase sealing effect and the working life of rotating ring and stationary ring.Owing to after medium enters rotating ring and stationary ring position, no longer pile up, but flow into low pressure area again, increased flowability, thereby can increase medium to the cooling action of rotating ring and stationary ring again, made good cooling results.
As improvement, described return flow line refers to, also be provided with one or more than one return port between the low pressure area of the cavity of ccontaining two rotors of the cavity between described rotating ring and the pump housing and the pump housing, each return port is positioned on the pump housing, by return port medium is carried, processing is simple like this, and it is convenient to carry.
As further improvement, quantity is that plural return port evenly distributes along circumference, makes backflow effective, more even.
Description of drawings
Accompanying drawing 1 is the cross-sectional view of the mechanical seal device of rotor pump of the present utility model.
Accompanying drawing 2 is the main TV structure schematic representation of the mechanical seal device of rotor pump of the present utility model.
As shown in the figure: 1, the pump housing, 1.1, back flash, 2, rotating shaft, 3, sealing seat, 4, rotating ring, 5, stationary ring, 6, spring, 7, return port.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, the mechanical seal device of rotor pump of the present utility model, comprise the rotating shaft 2 that is located on the pump housing 1, be fixed on sealing seat 3 on the pump housing 1 end face, be located in the axis hole of the pump housing 1 and with rotating shaft 2 circumferentially spacing rotating ring 4, be located at rotating shaft 2 outer stationary ring 5 and spring 6; Rotating ring 4 and rotating shaft 2 interlocks, described stationary ring 5 is circumferentially spacing in sealing seat 3, stationary ring 5 phase countershafts 2 transfixions, described spring 6 is located at outside the rotating shaft 2, one end and stationary ring 5 offset, the interior edge face of the other end and sealing seat 3 offsets, and the end face of described stationary ring 5 is force-fitted on the end face of rotating ring 4 by spring 6; Described rotating ring 4 is communicated with by the low pressure area of return flow line with the cavity of the pump housing 1 ccontaining two rotors with cavity between the pump housing 1.The cavity of ccontaining two rotors of the pump housing is boundary along the center line connecting line of two rotors, is low pressure area near material feeding mouth one side, is the zone of high pressure near discharge port one side.
Described return flow line refers to, is provided with also between the low pressure area of the cavity of the cavity between described rotating ring 4 and the pump housing 1 and the pump housing 1 ccontaining two rotors that dotted line indicates among one or more than one return port 7(such as Fig. 1), each return port 7 is positioned on the pump housing 1.Return port 8 is inclined hole, and is not parallel with the axis of rotating shaft 2.The quantity of return port 8 does not limit, and quantity is that plural return port 7 evenly distributes along circumference, that is to say that the quantity of return port 7 is two or more, evenly distributes along circumference.
Rotor pump is provided with two rotating shafts, and corresponding mechanical seal device also is two, and two structure is identical, is the structure shown in the utility model.When work, the cavity between fed sheet of a media driven torus 4 and the pump housing 1 enters into the low pressure area of the cavity of the pump housing 1 ccontaining two rotors again by return port 7.
Claims (3)
1. the mechanical seal device of a rotor pump, comprise the rotating shaft (2) that is located on the pump housing (1), be fixed on sealing seat (3) on the pump housing (1) end face, be located in the axis hole of the pump housing (1) and with rotating shaft (2) circumferentially spacing rotating ring (4), be located at rotating shaft (2) outer stationary ring (5) and spring (6); Described stationary ring (5) is circumferentially spacing in sealing seat (3), described spring (6) is located at outside the rotating shaft (2), one end and stationary ring (5) offset, and the interior edge face of the other end and sealing seat (3) offsets, and the end face of described stationary ring (5) is force-fitted on the end face of rotating ring (4) by spring (6); It is characterized in that: described rotating ring (4) is communicated with by the low pressure area of return flow line with the cavity of ccontaining two rotors of the pump housing (1) with cavity between the pump housing (1).
2. the mechanical seal device of rotor pump according to claim 1, it is characterized in that: described return flow line refers to, also be provided with one or more than one return port (7) between the low pressure area of the cavity of the cavity between described rotating ring (4) and the pump housing (1) and ccontaining two rotors of the pump housing (1), each return port (7) is positioned on the pump housing (1).
3. the mechanical seal device of rotor pump according to claim 2, it is characterized in that: quantity is that plural return port (7) evenly distributes along circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013349 CN203130497U (en) | 2013-01-10 | 2013-01-10 | Mechanical sealing device of rotor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013349 CN203130497U (en) | 2013-01-10 | 2013-01-10 | Mechanical sealing device of rotor pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130497U true CN203130497U (en) | 2013-08-14 |
Family
ID=48938479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013349 Expired - Lifetime CN203130497U (en) | 2013-01-10 | 2013-01-10 | Mechanical sealing device of rotor pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062049A (en) * | 2013-01-10 | 2013-04-24 | 宁波得利时泵业有限公司 | Mechanical seal device of rotor pump |
-
2013
- 2013-01-10 CN CN 201320013349 patent/CN203130497U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062049A (en) * | 2013-01-10 | 2013-04-24 | 宁波得利时泵业有限公司 | Mechanical seal device of rotor pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130814 Effective date of abandoning: 20150923 |
|
| RGAV | Abandon patent right to avoid regrant |