CN206816568U - Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe - Google Patents
Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe Download PDFInfo
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- CN206816568U CN206816568U CN201720706479.XU CN201720706479U CN206816568U CN 206816568 U CN206816568 U CN 206816568U CN 201720706479 U CN201720706479 U CN 201720706479U CN 206816568 U CN206816568 U CN 206816568U
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Abstract
The utility model discloses solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, including 90 ° of elbow common pipes of band（1）, U-shaped bellows（2）, circular filter net（8）, three-way connection（5）And straight tube（6）, wherein 90 ° of elbow common pipes of band（1）It is connected with the water sealing (sealing water) pipe flushing hole of pump water inlet section, 90 ° of elbow common pipes of band（1）The other end and U-shaped bellows（2）One end is connected by way of welding, U-shaped bellows（2）The other end installation band circular groove flange（3）, circular filter net is installed at circular groove（8）, the U-shaped bellows of mounting flange（2）One end passes through bolt（7）The mode of connection and another flange（4）Connection, passes through straight tube（6）And three-way connection（5）It is connected respectively with multistage pump packing sealing inlet opening.The device is not only lubricated to packing seal to be filtered with the operating mode water cooled down, while is realized to the periodically changed or cleaned of screen pack.
Description
Technical field
Centrifugal multistage pump multiple centrifugal pump and multi-stage self-balancing centrifugal pump field are the utility model is related to, it is more particularly to cold for packing seal
But the on-line automatic filter of axle envelope water lubricated.
Background technology
Packing seal is mainly used in the process mechanism in machinery industry and the dynamic sealing of equipment moving part, also known as compresses
Packing seal.After the filler of oil immersion loads packing cavity, it is compressed axially through gland, due to the plasticity of filler, filler
It will be in close contact with axle, the lubricant impregnated in filler is extruded, and oil film is formed between contact surface, i.e. " bearing effect "；And
Because contact condition is uneven, axle contact site forms irregular labyrinth with non-contact part, acts the work for preventing liquid stream from revealing
With i.e. " labyrinth effect ".Good packing seal is to maintain above two effect, thus it requires keeping good lubrication and suitable
When impaction state, and then due to the relative slip between axle and filler, produce a certain amount of frictional heat and worn with filler, therefore
It is general that a part of axle envelope is drawn from the high-pressure side of pump chamber using water sealing (sealing water) pipe in centrifugal multistage pump multiple centrifugal pump and multi-stage self-balancing centrifugal pump field
Water carries out water lubrication and cooling to packing seal, avoids, because lubrication is bad with cooling down, causing occur unlubricated friction between filler and axle
Wipe.
Centrifugal multistage pump multiple centrifugal pump or multi-stage self-balancing centrifugal pump application field are wider, in pumped (conveying) medium variation and operating mode medium not
It is evitable the impurity such as some solid particles or suspension to be present.And lubrication and cooling water used in packing seal, without
Any filtering and purified treatment, directly drawn from pump chamber inner high voltage side by pipeline to enter packing seal intracavitary.If conveying
After some solid particles or suspension enter packing seal in medium, solid particle is caused due to the sealing function of packing seal
Or suspension is stagnated in the gap between filler, the leak holes of packing seal are blocked, in turn results in and is rubbed between filler and axle
And caused heat is assembled in annular seal space, most make the impregnating agent of packing exhausted at last, greatly shorten making for packing seal
Use the life-span；On the other hand,, will due to the presence of solid particle between filler and axle when axis rotation or axial float
Accelerate the rate of wear of axle, and cause the gap between axle and filler to increase, leakage rate increase so that the efficiency of pump reduces.
The content of the invention
The purpose of this utility model is to provide solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, to avoid
Solid particle or other impurity enter packing seal intracavitary, improve the service life of packing seal.
To solve problem above, the utility model is achieved through the following technical solutions：
Solid particulate filters device in a kind of described centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, including band 90 ° of elbow common pipes, U
The water seal of type bellows, circular filter net, three-way connection and straight tube, wherein 90 ° of elbow common pipes of band and multistage pump inlet segment
Pipe flushing hole is connected, and 90 ° of elbow common pipe other ends of band are connected with U-shaped bellows one end by way of welding, U-shaped ripple
The other end of pipe installs band circular groove flange, and circular filter net, U-shaped bellows one end of mounting flange are installed at circular groove
It is connected by bolted connection with another flange, inlet opening is sealed with multistage pump packing by straight tube and three-way connection respectively
It is connected.
Described U-shaped bellows one end installation band circular groove flange, circular groove external diameter are more than flange diameter of bore, with
The external diameter of circular filter net matches, and the depth of circular groove is more than the thickness of circular filter net.
The beneficial effects of the utility model are as follows：
The utility model is using solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, in multistage pump inlet segment water
Seal U-shaped bellows of the installation with automatic fitration function, U-shaped ripple in the water sealing (sealing water) pipe between flushing hole and packing seal water inlet
Pipe is installed on multistage pump inlet segment water seal flushing hole nearby and is bent downwardly, and circular filter net is installed on going out for U-shaped bellows
At the mouth of a river, two flanges play positioning and fixation to circular filter net, by some bolt connections between two flanges, have
Following four beneficial effect：
（1）In the centrifugal multistage pump multiple centrifugal pump course of work, the operating mode water flowed out by multistage pump inlet segment water seal flushing hole enters water seal
In pipe, enter after the once filtering of circular filter net in the annular seal space of packing seal, packing seal particularly packing is entered
Row lubrication and cooling；
（2）Due to the effect of self gravitation, under the impurity such as solid particle or suspension that circular filter net filtration goes out is gradual
The bottom of U-shaped bellows is sink to, efficiently solves due to impurity bulk deposition and blocks the problem of circular filter net；
（3）The U-shaped bellows one end for being provided with flange is connected by bolt with another flange, convenient disassembly, is easy to U-shaped ripple
The cleaning of impurity and circular filter net is periodically changed or cleaned in line pipe；
（4）Due to the flexible characteristic of bellows itself, integral installation size and the direction of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe can
It is adjusted according to the installing space of multistage pump.
Brief description of the drawings
Fig. 1 is the overall structure signal of solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe of the utility model
Figure；
Fig. 2 is Fig. 1 partial view A；
In figure mark for：1：90 ° of elbow general elbows of band；2：U-shaped bellows；3：Band circular groove flange；4：Flange；5：
Three-way connection；6：Straight tube；7：Bolt；8：Circular filter net；The direction of arrow is that water seal in-pipe flow moves direction.
Embodiment
Below in conjunction with accompanying drawing 1 and Fig. 2, one embodiment of the present utility model is further described：
Solid particulate filters device in a kind of described centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, including band 90 ° of elbow common pipes 1, U
Type bellows 2, circular filter net 8, three-way connection 5 and straight tube 6, wherein 90 ° of elbow common pipes 1 of band and multistage pump inlet segment
Water sealing (sealing water) pipe flushing hole is connected, and 90 ° of other ends of elbow common pipe 1 of band are connected with U-shaped one end of bellows 2 by way of welding, U
The other end installation band circular groove flange 3 of type bellows 2, installs circular filter net 8 at circular groove, mounting flange it is U-shaped
The one end of bellows 2 is connected with another flange 4 by bolted connection, by straight tube 6 and three-way connection 5 respectively with multistage pump
Packing seal inlet opening is connected.
The described one end of U-shaped bellows 2 installation band circular groove flange 3, circular groove external diameter is more than flange diameter of bore,
Match with the external diameter of circular filter net 8, and the depth of circular groove is more than the thickness of circular filter net 8.
Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, there is the U-shaped bellows 2, U of automatic fitration function
Type bellows 2 is installed on multistage pump inlet segment water seal flushing hole nearby and is bent downwardly, and circular filter net 8 is installed on U-shaped ripple
The water outlet of line pipe 2, two flanges play positioning and fixation to circular filter net 8, by some spiral shells between two flanges
Bolt 7 connects.In the course of the work, the operating mode water flowed out by multistage pump inlet segment water seal flushing hole enters water sealing (sealing water) pipe to centrifugal multistage pump multiple centrifugal pump
It is interior, enter after the once filtering of circular filter net 8 in the annular seal space of packing seal, packing seal particularly packing is carried out
Lubrication and cooling；Simultaneously because the impurity such as the effect of self gravitation, solid particle or suspension that circular filter net 8 filters out by
The bottom of U-shaped bellows 2 is gradually sunk down into, efficiently solves due to impurity bulk deposition and blocks the problem of circular filter net 8；This
When one end of U-shaped bellows 2 of flange be installed be connected by bolt 7 with another flange 4, convenient disassembly, be easy to U-shaped bellows 2
The cleaning of interior impurity and circular filter net 8 it is periodically changed or cleaned；On the other hand, due to the flexible spy of bellows itself
Property, integral installation size and the direction of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe can be adjusted according to the installing space of multistage pump.
Claims (2)
1. solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe, including 90 ° of elbow common pipes of band（1）, U-shaped ripple
Pipe（2）, circular filter net（8）, three-way connection（5）And straight tube（6）, it is characterised in that：90 ° of elbow common pipes of band（1）With it is more
The water sealing (sealing water) pipe flushing hole connection of level pump water inlet section, 90 ° of elbow common pipes of band（1）The other end and U-shaped bellows（2）One end passes through
The mode of welding connects, U-shaped bellows（2）The other end installation band circular groove flange（3）, the circular mistake of installation at circular groove
Filter screen（8）, the U-shaped bellows of mounting flange（2）One end passes through bolt（7）The mode of connection and another flange（4）Connection, passes through
Straight tube（6）And three-way connection（5）It is connected respectively with multistage pump packing sealing inlet opening.
2. solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe as claimed in claim 1, it is characterised in that：It is U-shaped
Bellows（2）One end installation band circular groove flange（3）, circular groove external diameter is more than flange diameter of bore, with circular filter net
（8）External diameter match, and the depth of circular groove is more than circular filter net（8）Thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706479.XU CN206816568U (en) | 2017-06-18 | 2017-06-18 | Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720706479.XU CN206816568U (en) | 2017-06-18 | 2017-06-18 | Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816568U true CN206816568U (en) | 2017-12-29 |
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ID=60760720
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720706479.XU Expired - Fee Related CN206816568U (en) | 2017-06-18 | 2017-06-18 | Solid particulate filters device in a kind of centrifugal multistage pump multiple centrifugal pump water sealing (sealing water) pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704373A (en) * | 2018-05-29 | 2018-10-26 | 芜湖中驰机床制造有限公司 | A kind of coolant liquid filtration system with slag-draining device |
| CN112903014A (en) * | 2021-01-20 | 2021-06-04 | 东风商用车有限公司 | Urea quality liquid level temperature sensor structure and maintenance method |
-
2017
- 2017-06-18 CN CN201720706479.XU patent/CN206816568U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704373A (en) * | 2018-05-29 | 2018-10-26 | 芜湖中驰机床制造有限公司 | A kind of coolant liquid filtration system with slag-draining device |
| CN112903014A (en) * | 2021-01-20 | 2021-06-04 | 东风商用车有限公司 | Urea quality liquid level temperature sensor structure and maintenance method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20200618 |