CN207975019U - A kind of new pump axle end sealing device - Google Patents
A kind of new pump axle end sealing device Download PDFInfo
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- CN207975019U CN207975019U CN201820234382.8U CN201820234382U CN207975019U CN 207975019 U CN207975019 U CN 207975019U CN 201820234382 U CN201820234382 U CN 201820234382U CN 207975019 U CN207975019 U CN 207975019U
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- hole
- drive shaft
- air
- pump
- air sealing
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Abstract
The utility model discloses a kind of new pump axle end sealing device, it includes pump drive shaft, and one end of pump drive shaft is provided with the pump housing, pumped medium is provided in the pump housing；Air sealing is provided on pump drive shaft, air sealing includes air sealing body, first through hole is provided on air sealing body, compressed air access pipeline is provided in first through hole, compressed air access pipeline is connected to splitter cavity, the side of splitter cavity is provided with counter balance pocket, and counter balance pocket is connected to pressure relief pipe, and pressure relief pipe is set in the second through-hole；The both sides of air sealing body are provided with labyrinth seal, and Drain Resistance piece is provided in labyrinth seal, and the side of pump drive shaft is movably set with end cover.The utility model provides a kind of new pump axle end sealing device, simple in structure, of low cost, will not wear axis, long lifespan, good airproof performance, performance stabilization, no pumped medium leakage, zero consumptive material, maintenance is replaced simple and convenient.
Description
Technical field
This practicality is related to a kind of technological equipment, specially a kind of new pump axle end sealing device.
Background technology
Pump be used as a kind of universal machine, municipal administration, water conservancy, power generation, petrochemical industry, steel-making, etc. fields extensive application.
In various water pumps, shaft end seal generally uses packing seal or mechanical seal；Packing seal is that a kind of traditional contact is close
Envelope, application are wider.Simple in structure, it is convenient to replace, and of low cost, applied widely, power consumption is big, wears axis, and service life is short.
Mechanical seal good airproof performance, performance are stablized, and amount of leakage is few, and friction power loss is low, and service life is long, wear very little to axis, can meet
Various working requirement, in the extensive use of the departments such as petrochemical industry, but its mechanism is complicated, the accuracy of manufacture is high, expensive, repair is not square
Just.
Invention content
The purpose of this utility model be in view of the above problems, provide a kind of new pump axle end sealing device, it is simple in structure,
It is of low cost, axis will not be worn, long lifespan, good airproof performance, performance stabilization, no pumped medium leakage, zero consumptive material, maintenance is replaced simple
Folk prescription is just.
In order to achieve the above object, the technical solution adopted in the utility model is：It includes pump drive shaft, the pump drive shaft
One end be provided with the pump housing, be provided with pumped medium in the pump housing；Air sealing, the sky are provided on the pump drive shaft
Hermetic seal includes air sealing body, and first through hole is provided on the air sealing body, compression is provided in the first through hole
Air accesses pipeline, and the compressed air access pipeline is connected to splitter cavity, and the side of the splitter cavity is provided with counter balance pocket, institute
It states counter balance pocket to be connected to pressure relief pipe, the pressure relief pipe is set in the second through-hole；The both sides of the air sealing body are arranged
There is labyrinth seal, Drain Resistance piece is provided in the labyrinth seal, the side of the pump drive shaft is movably set with end cover.
Further, the diameter of the Drain Resistance piece is less than the internal diameter of air sealing body.
Further, the pumped medium pressure is set as 1-1.5 times of the pressure of compressed air.
Further, the side setting of the air sealing body is fluted, and the groove is flexibly connected with end cover.
Further, the first mider hole of the first through hole is set as taper hole；Second mider hole of second through-hole
It is set as taper hole.
The beneficial effects of the utility model：The utility model provides a kind of new pump axle end sealing device, simple in structure,
It is of low cost, axis will not be worn, long lifespan, good airproof performance, performance stabilization, no pumped medium leakage, zero consumptive material, maintenance is replaced simple
Folk prescription is just.
1, the diameter of Drain Resistance piece is less than the internal diameter of air sealing body, and labyrinth seal is that have between pump drive shaft and air sealing
Perhaps flexuose cell makes the sealing that leakage reduces, the Drain Resistance piece being arranged in labyrinth seal that can be further reduced leakage；
2, the side setting of air sealing body is fluted, and the groove is flexibly connected with end cover, and such structure is set
Meter facilitates the installation of end cover and repair to replace；
3, the first mider hole of first through hole is set as taper hole；Second mider hole of second through-hole is set as taper hole,
Such structure design facilitates the installation of compressed air access pipeline and pressure relief pipe.
Description of the drawings
Fig. 1 is the utility model structure front view.
Fig. 2 is the structural schematic diagram of the utility model structure hollow hermetic seal.
Fig. 3 is enlarged diagram at A in Fig. 2.
Fig. 4 is enlarged diagram at B in Fig. 2.
Label character described in figure is expressed as：1, pumped medium；2, counter balance pocket；3, the pump housing；4, pressure relief pipe；5, compression is empty
Gas；6, compressed air accesses pipeline；7, air seals；8, end cover；9, pump drive shaft；701, air sealing body；702, divide
Flow chamber；703, groove；704, labyrinth seal；705, Drain Resistance piece；706, first through hole；707, the second through-hole；70101, internal diameter；
70601, the first mider hole；70701, the second mider hole.
Specific implementation mode
In order to enable those skilled in the art to better understand the technical solutions of the present invention, below in conjunction with the accompanying drawings to this reality
Be described in detail with novel, the description of this part be only it is exemplary and explanatory, should not be to the scope of protection of the utility model
There is any restriction effect.
As Figure 1-Figure 4, the concrete structure of the utility model is：It includes pump drive shaft 9, the pump drive shaft 9
One end is provided with the pump housing 3, and pumped medium 1 is provided in the pump housing 3；Air sealing 7, institute are provided on the pump drive shaft 9
It includes air sealing body 701 to state air sealing 7, and first through hole 706 is provided on the air sealing body 701, and described first is logical
Compressed air access pipeline 6 is provided on hole 706, the compressed air access pipeline 6 is connected to splitter cavity 702, the shunting
The side of chamber 702 is provided with counter balance pocket 2, and the counter balance pocket 2 is connected to pressure relief pipe 4, and it is logical that the pressure relief pipe 4 is set to second
In hole 707；The both sides of the air sealing body 701 are provided with labyrinth seal 704, and Drain Resistance is provided in the labyrinth seal 704
The side of piece 705, the pump drive shaft 9 is movably set with end cover 8.
Preferably, the diameter of the Drain Resistance piece 705 is less than the internal diameter 70101 of air sealing body 701.
Preferably, 1 pressure of the pumped medium is set as 1-1.5 times of the pressure of compressed air 5.
Preferably, the side setting fluted 703 of the air sealing body 701, the groove 703 is lived with end cover 8
Dynamic connection.
Preferably, the first mider hole 70601 of the first through hole 706 is set as taper hole；The of second through-hole 707
Two mider holes 70701 are set as taper hole.
The utility model pressure relief pipe 4 connects pumping and enters pond and air, and compressed air 5 accesses pipeline by compressed air
It is divided into two-way in 702 body of splitter cavity of 6 entrance air sealings 7.Compressed air 5 wherein all the way is by labyrinth seal 704 to close
It blocks lid 8 and enters air.In addition enter counter balance pocket 2 all the way, if the pressure of compressed air 5 is more than pumped medium 1, compressed air
Part pressure can be leaked into air by 5 by pressure relief pipe 4；If the pressure of compressed air 5 is less than the pressure of pumped medium 1, pump
Send medium 1 part pressure can be leaked into sucking pond by pressure relief pipe 4, make the pressure balance of pumped medium 1 and compressed air 5 with
Reach sealing effect.
The pressure of compressed air 5 passes through 4 Auto-matching of counter balance pocket 3 and pressure relief pipe with the pressure of pumped medium 1.
The fewer the amount that the pressure of compressed air 5 crosses end cover 8 into air the better.
Pumped medium 1 is into the decompression size before counter balance pocket 2 can be by the labyrinth seal of 2 front end of design counter balance pocket
704 and pressure relief pipe 4 leakage flow determine.
It should be noted that herein, the terms "include", "comprise" or its any other become it should be noted that
Herein, the terms "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that packet
The process, method, article or equipment for including a series of elements includes not only those elements, but also includes being not explicitly listed
Other element, or further include for elements inherent to such a process, method, article, or device.
Specific case used herein is expounded the principles of the present invention and embodiment, above example
Illustrate the method and its core concept for being merely used to help understand the utility model.The above is only the preferred of the utility model
Embodiment, it is noted that due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for this technology
For the those of ordinary skill in field, without departing from the principle of this utility model, several improvement, retouching can also be made
Or variation, above-mentioned technical characteristic can also be combined in the right way；These improve retouching, variation or combination, or not
It is improved that the design of utility model and technical solution are directly applied into other occasions, it is regarded as the protection of the utility model
Range.
Claims (5)
1. a kind of new pump axle end sealing device, it includes pump drive shaft（9）, which is characterized in that the pump drive shaft（9）'s
One end is provided with the pump housing（3）, the pump housing（3）Inside it is provided with pumped medium（1）；The pump drive shaft（9）On be provided with air
Sealing（7）, the air sealing（7）Including air sealing body（701）, the air sealing body（701）On to be provided with first logical
Hole（706）, the first through hole（706）On be provided with compressed air access pipeline（6）, the compressed air access pipeline（6）
With splitter cavity（702）Connection, the splitter cavity（702）Side be provided with counter balance pocket（2）, the counter balance pocket（2）With relief tube
Road（4）Connection, the pressure relief pipe（4）It is set to the second through-hole（707）It is interior；The air sealing body（701）Both sides setting
There is labyrinth seal（704）, the labyrinth seal（704）Inside it is provided with Drain Resistance piece（705）, the pump drive shaft（9）Side live
It is dynamic to be provided with end cover（8）.
2. a kind of new pump axle end sealing device according to claim 1, which is characterized in that the Drain Resistance piece（705）
Diameter be less than air sealing body（701）Internal diameter（70101）.
3. a kind of new pump axle end sealing device according to claim 1, which is characterized in that the pumped medium（1）
Pressure is set as compressed air（5）1-1.5 times of pressure.
4. a kind of new pump axle end sealing device according to claim 1, which is characterized in that the air sealing body
（701）Side setting it is fluted（703）, the groove（703）With end cover（8）Flexible connection.
5. a kind of new pump axle end sealing device according to claim 1, which is characterized in that the first through hole
（706）The first mider hole（70601）It is set as taper hole；Second through-hole（707）The second mider hole（70701）It is set as
Taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234382.8U CN207975019U (en) | 2018-02-09 | 2018-02-09 | A kind of new pump axle end sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820234382.8U CN207975019U (en) | 2018-02-09 | 2018-02-09 | A kind of new pump axle end sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975019U true CN207975019U (en) | 2018-10-16 |
Family
ID=63767331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820234382.8U Active CN207975019U (en) | 2018-02-09 | 2018-02-09 | A kind of new pump axle end sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005893A (en) * | 2019-12-27 | 2020-04-14 | 湖南泛航智能装备有限公司 | High-speed centrifugal fan labyrinth seal structure |
-
2018
- 2018-02-09 CN CN201820234382.8U patent/CN207975019U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005893A (en) * | 2019-12-27 | 2020-04-14 | 湖南泛航智能装备有限公司 | High-speed centrifugal fan labyrinth seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230525 Address after: No. 31 Huancheng South Road, Zhongguan Town, Deqing County, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Nanfang Pump Industry Co.,Ltd. Address before: 410000 No. 45 Xichong Road, Quantang Street, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: HUNAN NANFANG CHANGHE PUMP INDUSTRY CO.,LTD. |
|
| TR01 | Transfer of patent right |