CN208348511U - High temperature chemical pump mechanically-sealing apparatus - Google Patents
High temperature chemical pump mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN208348511U CN208348511U CN201820823273.XU CN201820823273U CN208348511U CN 208348511 U CN208348511 U CN 208348511U CN 201820823273 U CN201820823273 U CN 201820823273U CN 208348511 U CN208348511 U CN 208348511U
- Authority
- CN
- China
- Prior art keywords
- axle sleeve
- stationary ring
- water jacket
- ring
- rear end
- 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
Links
Abstract
The utility model discloses a kind of high temperature chemical pump mechanically-sealing apparatus, the rotating ring and stationary ring being sealed including the fixed axle sleeve being placed on pump shaft and mutual cooperation；The stationary ring rear end is provided with the counterbalance spring for preload, and the rotating ring rear end is fixedly connected with axle sleeve, and the stationary ring rear end is provided with cyclic water jacket；The stationary ring, axle sleeve, cyclic water jacket surround flushing chamber；The sensible inlet and outlet for rinsing chamber are provided on the cyclic water jacket；Helicla flute, the seal face of the helicla flute sensible rotating ring and stationary ring from rinsing chamber are provided on the axle sleeve outer ring surface；And there is the gap for forming flushing water return flow line between stationary ring and axle sleeve.The principles of the present invention are the rotations using helicla flute and pump shaft itself, are flushing water pressure flush, improve heat-sinking capability and rinse capability.
Description
Technical field
The utility model relates to a kind of mechanically-sealing apparatus, especially a kind of machinery suitable for high-temperature medium operating condition is close
Envelope.
Background technique
Mechanical seal is a kind of gland seal device of rotating machinery.For example centrifugal pump, centrifuge, reaction kettle and compressor etc. are set
It is standby.Since transmission shaft is applied in inside and outside equipment, in this way, the medium in equipment is logical there are a circumferential clearance between axis and equipment
It crosses the gap to leak out, if pressure is subatmospheric in equipment, air is to equipment internal leakage, it is therefore necessary to have a resistance
The gland seal device of stopping leak leakage.There are many type of axle envelope, since mechanical seal has many advantages, such as that leakage rate is few and the service life is long, so generation
Mechanical seal is in the most important sealing mode of these equipment in boundary.Mechanical seal is called end face seal, in the related mark of country
It is defined such that in standard " by least a pair of end face perpendicular to rotation axis in Fluid pressure and compensation mechanism elastic force (or magnetic
Power) effect and auxiliary seal cooperation under keep be bonded and constituted with respect to sliding prevent fluid leak device."
For some high temperature and with the chemical medium of strong corrosive, existing mechanical seal is strong to the flushing of seal face
Degree not enough, causes dynamic and static ring sealing face due to corrosion and the failure of high temperature stress problem.
Utility model content
In view of this, the present invention provides a kind of high temperature chemical pump mechanically-sealing apparatus, increase flushing water pressure, mention
Height heat dissipation and rinse capability.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of high temperature chemical pump is filled with mechanical seal
It sets, the rotating ring and stationary ring being sealed including the fixed axle sleeve being placed on pump shaft and mutual cooperation；The stationary ring rear end setting
There is the counterbalance spring for preload, the rotating ring rear end is fixedly connected with axle sleeve, and the stationary ring rear end is provided with cyclic water jacket；Institute
It states stationary ring, axle sleeve, cyclic water jacket and surrounds flushing chamber；The sensible inlet and outlet for rinsing chamber are provided on the cyclic water jacket；
Helicla flute, the seal face of the helicla flute sensible rotating ring and stationary ring from rinsing chamber are provided on the axle sleeve outer ring surface；And
And there is the gap for forming flushing water return flow line between stationary ring and axle sleeve.The principles of the present invention are to utilize helicla flute and pump
The rotation of axis itself is flushing water pressure flush, improves heat-sinking capability and rinse capability.
As an improvement the cyclic water jacket is equipped with outside framework oil seal between axle sleeve.Avoid flushing water from axle sleeve and
It is revealed between cyclic water jacket.
As an improvement being located at helicla flute tail end on the axle sleeve is provided with manger step.It is forced by manger step
Flushing water reflux guarantees flushing water circulation.
The utility model has the beneficial effect that the mechanically-sealing apparatus with above structure, is set by axle sleeve outer ring surface
The helicla flute set improves the intensity of flushing, improves simultaneously using the rotation of pump shaft itself for accelerating to pressurize to flushing water
Heat-sinking capability.And there are gap between axle sleeve and stationary ring, it ensure that flushing water can flow back to form circulation.Flushing water adds
Pressure utilizes the design feature of itself, is not necessarily to additional equipment and power source, more economical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Marked in the figure: 1 pump shaft, 2 axle sleeves, 3 rotating rings, 4 stationary rings, 5 counterbalance springs, 6 flushing chambers, 7 cyclic water jackets, 8 skeletons oil
Envelope, 9 helicla flutes, 10 gaps, 11 manger steps, 12 water inlets, 13 water outlets.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution of the utility model, below with reference to specific implementation
The utility model is described in further detail for mode.
As shown in Figure 1, the utility model includes that the fixed axle sleeve 2 being placed on pump shaft 1 and mutual cooperation are sealed
Rotating ring 3 and stationary ring 4；4 rear end of stationary ring is provided with the counterbalance spring 5 for preload, and 3 rear end of rotating ring and axle sleeve 2 are fixed
Connection, 4 rear end of stationary ring is provided with cyclic water jacket 7；The stationary ring 4, axle sleeve 2, cyclic water jacket 7, which surround, rinses chamber 6；It is described to follow
The sensible water inlet 12 and water outlet 13 for rinsing chamber 6 is provided on ring water jacket 7；It is provided with helicla flute 9 on 2 outer ring surface of axle sleeve,
The seal face of the helicla flute 9 sensible rotating ring 3 and stationary ring 4 from rinsing chamber 6；And has between stationary ring 4 and axle sleeve 1 and formed
The gap 10 of flushing water return flow line.The principles of the present invention are the rotations using helicla flute 9 and pump shaft 1 itself, to rinse
Water pressure flush improves heat-sinking capability and rinse capability.Outside framework oil seal 8 is installed between cyclic water jacket 7 and axle sleeve 2.On axle sleeve 2
9 tail end of helicla flute is provided with manger step 11.
When work, flushing water enters from water inlet 12 rinses chamber 6, and passes through sealing surface along thread groove 9, will seal
The heat in face is taken away and is rinsed to sealing surface, and particulate matter is avoided to deposit.Water flow is rinsed in the rotation of thread groove 9 and pump shaft 1
The lower accelerated pressurization of effect, improves heat-sinking capability and rinse capability.
Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard
For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For
For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several
Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (3)
1. a kind of high temperature chemical pump mechanically-sealing apparatus, close including the fixed axle sleeve being placed on pump shaft and the progress that cooperates
The rotating ring and stationary ring of envelope；The stationary ring rear end is provided with the counterbalance spring for preload, it is characterised in that: the rotating ring rear end with
Axle sleeve is fixedly connected, and the stationary ring rear end is provided with cyclic water jacket；The stationary ring, axle sleeve, cyclic water jacket surround flushing chamber；It is described
The sensible inlet and outlet for rinsing chamber are provided on cyclic water jacket；Helicla flute, the spiral shell are provided on the axle sleeve outer ring surface
The seal face of spin slot sensible rotating ring and stationary ring from rinsing chamber；And has to form flushing water and flow back between stationary ring and axle sleeve and lead to
The gap in road.
2. a kind of high temperature chemical pump mechanically-sealing apparatus according to claim 1, it is characterised in that: the cyclic water jacket
Outside framework oil seal is installed between axle sleeve.
3. a kind of high temperature chemical pump mechanically-sealing apparatus according to claim 1, it is characterised in that: on the axle sleeve
Helicla flute tail end is provided with manger step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823273.XU CN208348511U (en) | 2018-05-30 | 2018-05-30 | High temperature chemical pump mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820823273.XU CN208348511U (en) | 2018-05-30 | 2018-05-30 | High temperature chemical pump mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348511U true CN208348511U (en) | 2019-01-08 |
Family
ID=64891565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820823273.XU Expired - Fee Related CN208348511U (en) | 2018-05-30 | 2018-05-30 | High temperature chemical pump mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043070A (en) * | 2019-12-12 | 2020-04-21 | 大连双龙泵业制造有限公司 | Mechanical seal for pump |
-
2018
- 2018-05-30 CN CN201820823273.XU patent/CN208348511U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043070A (en) * | 2019-12-12 | 2020-04-21 | 大连双龙泵业制造有限公司 | Mechanical seal for pump |
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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: 20190108 Termination date: 20210530 |