CN203685667U - Horizontal centrifugal pump mechanical seal - Google Patents
Horizontal centrifugal pump mechanical seal Download PDFInfo
- Publication number
- CN203685667U CN203685667U CN201420004041.3U CN201420004041U CN203685667U CN 203685667 U CN203685667 U CN 203685667U CN 201420004041 U CN201420004041 U CN 201420004041U CN 203685667 U CN203685667 U CN 203685667U
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- machine envelope
- pump
- centrifugal pump
- horizontal centrifugal
- 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
Links
- 238000005406 washing Methods 0.000 claims description 24
- 238000010992 reflux Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000011010 flushing procedure Methods 0.000 abstract 6
- 230000003068 static effect Effects 0.000 abstract 5
- 230000035943 smell Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model belongs to the technical field of mechanical seals, and particularly relates to a horizontal centrifugal pump mechanical seal. According to the horizontal centrifugal pump mechanical seal, a shaft sleeve and a pump are connected together through a key for a shaft, the shaft sleeve is sleeved with a mechanical seal static ring and a mechanical seal moving ring to form a friction pair, the mechanical seal static ring and the mechanical seal moving ring are sleeved with a mechanical seal static ring seat, a mechanical seal flushing liquid inlet is formed in one end of the mechanical seal static ring seat, a throttling valve is arranged at the mechanical seal flushing liquid inlet, a mechanical seal flushing liquid outlet is formed in the end, opposite to the mechanical seal flushing liquid inlet, of the mechanical seal static ring seat, the mechanical seal flushing liquid outlet is connected to an inlet of the pump through a backflow pipeline, the mechanical seal moving ring is connected with a mechanical seal moving ring seat through a plurality of telescopic compensating springs, and the shaft sleeve is sleeved with the mechanical seal moving ring seat. According to the horizontal centrifugal pump mechanical seal, mechanical seal backflow liquid can be guided into the inlet of the pump through the mechanical seal flushing liquid outlet and the backflow pipeline, mechanical seal leakage is avoided, it is guaranteed that a production field is environmentally friendly and free of peculiar smells, and unsafe factors in the production process are eliminated.
Description
Technical field
The utility model belongs to mechanical sealing technology field, is specifically related to a kind of horizontal centrifugal pump mechanical sealing.
Background technique
The bearing of canned motorpump and axle sleeve are at acrylic acid, toluene, in the mixed solution of water, very easily produce polymer, cause bearing, axle sleeve operational failure, the take-off of pump electrical switch is stopped, cause device to move, after being driven, device can normally move, change horizontal centrifugal pump, but this type centrifugal pump just presents mechanical seal leakage problem at the installation initial stage, early stage environmental requirement is very not strict, the material leaking is collected by conduit, maintain reluctantly production, when operating, worker there is hidden danger, because this material has certain corrosivity, along with the arrival of environmental protection storm, environmental protection pressure increases suddenly, face the pressure of stopping production.
Model utility content
For overcoming the deficiency in above-mentioned technology, the purpose of this utility model is: a kind of horizontal centrifugal pump mechanical sealing is provided, and leakage, the leakage problems of mechanical seal have not existed, and guarantees production scene environment-protective no-smell.
The utility model for the technological scheme that its technical problem of solution adopts is:
Described horizontal centrifugal pump mechanical sealing, axle sleeve and pump link together with key by axle, machine envelope stationary ring and machine envelope moving ring sleeve are connected on axle sleeve outside, form friction pair, machine envelope stationary seat is socketed in machine envelope stationary ring and machine envelope rotating ring outside, machine envelope stationary seat one end is provided with machine envelope washing solution entrance, described machine envelope washing solution ingress is provided with throttle, on machine envelope stationary seat, one end relative with machine envelope washing solution entrance is provided with the outlet of machine envelope washing solution, the outlet of machine envelope washing solution is connected to pump ingress by reflux pipeline, machine envelope rotating ring is connected with machine envelope rotating seat by many flexible compensation springs, machine envelope rotating seat is socketed in axle sleeve outside.
The utility model mechanical seal rinsing liquid enters machine envelope washing solution entrance after throttle throttling, entering machine envelope from machine envelope washing solution entrance moves, the friction pair chamber that stationary ring forms, for friction pair plays cooling, lubrication, the machine envelope washing solution outlet of machine envelope stationary seat opposite side setting can make mechanical seal reflux liquid introduce from here the entrance of pump through reflux pipeline, because pump entrance is negative pressure, easily realize and refluxing, guarantee that mechanical seal causes mechanical seal leakage while not causing friction pair to depart from because of negative pressure pump shaft vibration, guarantee production scene environment-protective no-smell, in device running, flexible compensation spring permission machine envelope rotating ring moves radially 2mm left and right along bearing.
Wherein, the one end near pump entrance on described reflux pipeline is provided with filter, and the machine that can filter out is sealed the impurity in reflux liquid.
Wherein, between described machine envelope rotating ring and machine envelope rotating seat, be provided with 6-8 root flexible compensation spring, existing horizontal centrifugal pump adopts a big spring to carry out flexible compensation, stressed even not, leakproofness is bad, 6-8 root flexible compensation spring can seal the uniform stressed between rotating ring and machine envelope rotating seat by assurance machine, in machine envelope rotating ring process moving process, prevents that mechanical seal rinsing liquid from leaking, seepage.
Wherein, described flexible compensation spring diameter is 4.5-5.5mm, and machine envelope rotating ring and machine envelope rotating seat are ring structure, and excessive being difficult for of spring diameter fixed, the too small effect that does not have compensation of diameter.
Compared with prior art, the utlity model has following beneficial effect:
The flexible compensation spring that the utility model seals machine between rotating ring and machine envelope rotating seat is improved to equally distributed little spring by original single big spring, assurance machine envelope rotating ring and machine envelope rotating seat are stressed evenly, the washing solution outlet of machine envelope and reflux pipeline are set, allow the mechanical seal rinsing liquid that can not reflux by pump body gap, be back to pump entrance through reflux pipeline, prevent that operator are in collection material process, be sprinkling upon the unsafe factor on operator's health; By transformation, acrylic acid, the strong peculiar smell of toluene material from leakage thing, and environmental protection production, peculiar smell are administered the adverse effect causing and all eliminated, realize environment-protective no-smell production, a guarantee that safety in production is many again.
Accompanying drawing explanation
The existing horizontal centrifugal pump mechanical seal structure of Fig. 1 schematic diagram.
Fig. 2 the utility model structural representation.
In figure: 1, machine envelope washing solution entrance; 2, machine envelope washing solution outlet; 3, machine envelope stationary seat; 4, machine envelope stationary ring; 5, machine envelope rotating ring; 6, machine envelope rotating seat; 7, flexible compensation spring; 8, axle sleeve.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 2, horizontal centrifugal pump mechanical sealing described in the utility model, axle sleeve 8 and pump link together with key by axle, machine envelope stationary ring 4 and machine envelope rotating ring 5 are socketed in axle sleeve 8 outsides, form friction pair, machine envelope stationary seat 3 is socketed in machine envelope stationary ring 4 and machine envelope rotating ring 5 outsides, machine envelope stationary seat 3 one end are provided with machine envelope washing solution entrance 1, described machine envelope washing solution entrance 1 place is provided with throttle, on machine envelope stationary seat 3, one end relative with machine envelope washing solution entrance 1 is provided with machine envelope washing solution outlet 2, machine envelope washing solution outlet 2 is connected to pump ingress by reflux pipeline, machine envelope rotating ring 5 is connected with machine envelope rotating seat 6 by many flexible compensation springs 7, machine envelope rotating seat 6 is socketed in axle sleeve 8 outsides.
Wherein, the one end near pump entrance on reflux pipeline is provided with filter, and the machine that can filter out is sealed the impurity in reflux liquid; Between machine envelope rotating ring 5 and machine envelope rotating seat 6, be provided with 6-8 root flexible compensation spring 7, existing horizontal centrifugal pump adopts a big spring to carry out flexible compensation, stressed even not, leakproofness is bad, 6-8 root flexible compensation spring 7 can seal the uniform stressed between rotating ring 5 and machine envelope rotating seat 6 by assurance machine, in machine envelope rotating ring 5 process moving process, prevents that mechanical seal rinsing liquid from leaking, seepage; Flexible compensation spring 7 diameters are 4.5-5.5mm, and machine envelope rotating ring 5 is ring structure with machine envelope rotating seat 6, and excessive being difficult for of flexible compensation spring 7 diameters fixed, the too small effect that does not have compensation of diameter.
The utility model mechanical seal rinsing liquid enters machine envelope washing solution entrance 1 after throttle throttling, entering machine envelope from machine envelope washing solution entrance moves, the friction pair chamber that stationary ring forms, for friction pair plays cooling, lubrication, the machine envelope washing solution outlet 2 of machine envelope stationary seat 3 opposite side settings can make mechanical seal reflux liquid introduce from here the entrance of pump through reflux pipeline, because pump entrance is negative pressure, easily realize and refluxing, guarantee that mechanical seal causes mechanical seal leakage while not causing friction pair to depart from because of negative pressure pump shaft vibration, guarantee production scene environment-protective no-smell, in device running, flexible compensation spring 7 permission machine envelope rotating rings move radially 2mm left and right along bearing 8.
Claims (4)
1. a horizontal centrifugal pump mechanical sealing, axle sleeve (8) and pump link together with key by axle, machine envelope stationary ring (3) and machine envelope rotating ring (5) are socketed in axle sleeve (8) outside, form friction pair, machine envelope stationary seat (4) is socketed in machine envelope stationary ring (3) and is connected with the pump housing with machine envelope rotating ring (5) is outside, machine envelope stationary seat (4) one end is provided with machine envelope washing solution entrance (1), it is characterized in that, described machine envelope washing solution entrance (1) locates to be provided with throttle, the upper one end relative with machine envelope washing solution entrance (1) of machine envelope stationary seat (4) is provided with machine envelope washing solution outlet (2), machine envelope washing solution outlet (2) is connected to pump ingress by reflux pipeline, machine envelope rotating ring (5) is connected with machine envelope rotating seat (6) by many flexible compensation springs (7), machine envelope rotating seat (6) is socketed in axle sleeve (8) outside.
2. horizontal centrifugal pump mechanical sealing according to claim 1, is characterized in that, the one end near pump entrance on described reflux pipeline is provided with filter.
3. horizontal centrifugal pump mechanical sealing according to claim 1, is characterized in that, between described machine envelope rotating ring (5) and machine envelope rotating seat (6), is provided with 6-8 root flexible compensation spring (7).
4. horizontal centrifugal pump mechanical sealing according to claim 1, is characterized in that, described flexible compensation spring (7) diameter is 4.5-5.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004041.3U CN203685667U (en) | 2014-01-03 | 2014-01-03 | Horizontal centrifugal pump mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004041.3U CN203685667U (en) | 2014-01-03 | 2014-01-03 | Horizontal centrifugal pump mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685667U true CN203685667U (en) | 2014-07-02 |
Family
ID=51007575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004041.3U Expired - Lifetime CN203685667U (en) | 2014-01-03 | 2014-01-03 | Horizontal centrifugal pump mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203685667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246922A (en) * | 2016-08-25 | 2016-12-21 | 浙江南元泵业有限公司 | horizontal mechanical seal for pump |
-
2014
- 2014-01-03 CN CN201420004041.3U patent/CN203685667U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246922A (en) * | 2016-08-25 | 2016-12-21 | 浙江南元泵业有限公司 | horizontal mechanical seal for pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |