CN203835791U - Adjustable mechanical sealing device of S-type single-stage double-suction centrifugal pump - Google Patents
Adjustable mechanical sealing device of S-type single-stage double-suction centrifugal pump Download PDFInfo
- Publication number
- CN203835791U CN203835791U CN201420263153.0U CN201420263153U CN203835791U CN 203835791 U CN203835791 U CN 203835791U CN 201420263153 U CN201420263153 U CN 201420263153U CN 203835791 U CN203835791 U CN 203835791U
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- China
- Prior art keywords
- mechanical sealing
- fixed ring
- adjusting nut
- stationary ring
- pump
- 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
- 238000007789 sealing Methods 0.000 title abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 210000004907 gland Anatomy 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008450 motivation Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
An adjustable mechanical sealing device of an S-type single-stage double-suction centrifugal pump comprises a mechanical sealing movable ring (9), a mechanical sealing fixed ring (10), a fixed ring adjusting nut (1) and a spring (13) arranged between the mechanical sealing movable ring and the mechanical sealing fixed ring, wherein the mechanical sealing movable ring (9), the mechanical sealing fixed ring (10) and the fixed ring adjusting nut (1) are arranged on a shaft sleeve (6) in a sleeved mode. The mechanical sealing fixed ring is fixed to the fixed ring adjusting nut through an anti-rotation pin (14), the outer circle thread section of the fixed ring adjusting nut is assembled on an inner thread mechanical sealing gland (2) in a threaded connection mode, and the inner thread mechanical sealing gland is locked on a pump body (4) and a pump cover (3) through bolts (12). Mechanical sealing compression amount can be directly and externally adjusted, work is reliable, operation is easy, mechanical sealing time can be effectively prolonged, user cost is saved, elastic compensation of the mechanical sealing device can be finished and fixed ring adjustment is carried out on the situation that a water pump is filled with media, under the condition that an inlet a gate valve does not need to be closed and the pump cover does not need to be disassembled.
Description
Technical field
The utility model relates to mechanical sealing technology field, especially the mechanical seal device of S type single-stage double-suction centrifugal pump.
Background technique
The mechanical seal (abbreviation machine envelope) of water pump is one of widely used product in mechanical industry.Mechanical seal in use, because the mechanical seal installation dimension of different mechanical seal producers is not identical, is difficult to control in the time that mechanical sealing static ring, rotating ring elastic compensating size are installed etc., easily causes machine leak sealing water.Traditional mechanical seal device of S type single-stage double-suction centrifugal pump is as the mechanical seal of ZU44 type, in installing and using, all can need to carry out because of a variety of causes the adjusting of machine envelope decrement, use in the process of pump user, have and seal the not damage of leakage envelope on opportunity opportunity, only need suitable reconditioner envelope rotating ring just can eliminate leakage, the adjusting to machine envelope under state conventionally, can only regulate from pump inside to machine envelope rotating ring, mounting-dismounting programme is complicated and easily cause the damage to machine envelope, increases manpower and materials cost.
Summary of the invention
The purpose of this utility model is the problem existing in order to solve prior art, provide one can be from outside direct adjusting machine envelope decrement, reliable operation, easy operating, effectively prolonged mechanical seals service time, saves user cost, at water pump in being full of under medium state, without closing import gate valve and taking apart in the situation of pump cover, can complete the elastic compensating that mechanical closely packed is put, carry out the mechanical seal device of stationary ring adjusting.
The purpose of this utility model is achieved by the following technical solution.
A kind of S type single-stage double-suction centrifugal pump adjustable mechanical seal device, include the machine envelope rotating ring, machine envelope stationary ring, the stationary ring adjusting nut that are set on axle sleeve, be arranged at the spring between machine envelope rotating ring and machine envelope stationary ring, machine envelope stationary ring is fixed on stationary ring adjusting nut by stop pin, and the cylindrical thread section of stationary ring adjusting nut is threaded connection and is assemblied on internal thread mechanical seal cover; Internal thread mechanical seal cover is tightened by bolts on the pump housing and pump cover.
The utility model device is decomposed into two of stationary ring adjusting nut and tapped mechanical seal covers by the part of Screw assembly by original conventional machinery sealing gland.By increasing stationary ring adjusting nut and tapped mechanical seal cover device, mechanical sealing static ring can axially moved flexibly, regulate the decrement of mechanical seal, ensure the elastic compensating between the dynamic and static ring of mechanical seal, meet usage requirement, thereby when solving the different mechanical seal installation dimension of mechanical seal producer and changing, cause the problems such as machine leak sealing water, rotating ring elastic compensating is poor.The utility model apparatus structure is simple, easy operating, reliable operation, can greatly shorten the time of adjusting mechanical seal compression, alleviate assembler's labor intensity, save user cost, and can effectively avoid the machine envelope that the stationary ring friction pair surface wear bringing due to dismounting causes to lose efficacy, save user cost the service time of prolonged mechanical sealing.,, can complete the elastic compensating between mechanical seal dynamic and static ring without closing import gate valve and taking apart in the situation of the pump housing in pouring in down a chimney under state at water pump, meet usage requirement.
Further set forth content of the present utility model below in conjunction with Figure of description.
Brief description of the drawings
Fig. 1 is the utility model device assembling schematic diagram;
Fig. 2 is the utility model device A-A sectional view;
Fig. 3 is stationary ring adjusting nut structural representation;
Fig. 4 is tapped mechanical seal cover figure.
Embodiment
As shown in Figure 1 to 4, a kind of S type single-stage double-suction centrifugal pump adjustable mechanical seal device, include the machine envelope rotating ring 9, machine envelope stationary ring 10, the stationary ring adjusting nut 1 that are set on axle sleeve 6, be arranged at the spring 13 between machine envelope rotating ring and machine envelope stationary ring, machine envelope stationary ring 10 is fixed on stationary ring adjusting nut 1 by stop pin 14, and the cylindrical thread section of stationary ring adjusting nut 1 is threaded connection and is assemblied on internal thread mechanical seal cover 2; Internal thread mechanical seal cover 2 use bolts 12 are locked on the pump housing 4 and pump cover 3.
The regulating method of the utility model S type single-stage double-suction centrifugal pump adjustable mechanical seal device is as follows:
1. first the impeller 5 of S type single-stage double-suction centrifugal pump, axle sleeve 6 and impeller lock jack panel 7 are installed on axle 8 by operation, machine being sealed to rotating ring 9 is installed on axle sleeve 6 again, machine is sealed to stationary ring 10 and be fixed on stationary ring adjusting nut 1 by stop pin 14, then the cylindrical thread section of stationary ring adjusting nut 1 is threaded connection and is loaded on internal thread mechanical seal cover 2;
2. the rotor part that includes axle 8, impeller 5, axle sleeve 6, impeller lock jack panel 7, machine envelope rotating ring 9, machine envelope stationary ring 10, stationary ring adjusting nut 1, internal thread mechanical seal cover 2 has been assembled, rotor part has been contained on the pump housing 4; Adjust impeller lock jack panel 7 and make impeller center and the pump housing 4 runner central alignments, impeller locking locking nut 7, adjusting machine envelope rotating ring 9 and the pump housing 4 end face distances, and locking machine envelope rotating ring 9; Pump cover 3 is lifted on the pump housing 4 to the connecting bolt 11 between the locking pump housing 4 and pump cover 3;
3. internal thread mechanical seal cover 2 use bolts 12 are locked on the pump housing 4 and pump cover 3, regulating stationary ring adjusting nut 1 to make machine envelope rotating ring and machine seal spring 13 between stationary ring with hook spanner compresses in even compressive state, sealing stationary ring adjusting nut 1 by whirler is with motivation envelope stationary ring 10 retreat or advance, if with the moving rotor part discovery of setting stick rotation tension, may be that machine envelope decrement is excessive, can seal stationary ring adjusting nut 1 by whirler and be with motivation envelope stationary ring to retreat decrement is diminished; Find to rotate pine if move rotor part with setting stick, may be that machine envelope decrement is too small, can seal stationary ring adjusting nut 1 by whirler is with motivation envelope stationary ring to advance to make to compress quantitative change large, thereby can play without the decrement of opening pump cover 3 adjusting machine envelope rotating rings, can be from outside direct adjusting machine envelope decrement, and O type ring seal device on stationary ring adjusting nut can ensure the sealability of water pump.
Claims (1)
1. a S type single-stage double-suction centrifugal pump adjustable mechanical seal device, it is characterized in that, include the machine envelope rotating ring (9), machine envelope stationary ring (10), the stationary ring adjusting nut (1) that are set on axle sleeve (6), be arranged at the spring (13) between machine envelope rotating ring and machine envelope stationary ring, it is upper that machine envelope stationary ring (10) is fixed on stationary ring adjusting nut (1) by stop pin (14), and the cylindrical thread section of stationary ring adjusting nut (1) is threaded connection and is assemblied on internal thread mechanical seal cover (2); Internal thread mechanical seal cover (2) is locked on the pump housing (4) and pump cover (3) with bolt (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263153.0U CN203835791U (en) | 2014-05-22 | 2014-05-22 | Adjustable mechanical sealing device of S-type single-stage double-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420263153.0U CN203835791U (en) | 2014-05-22 | 2014-05-22 | Adjustable mechanical sealing device of S-type single-stage double-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835791U true CN203835791U (en) | 2014-09-17 |
Family
ID=51513639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420263153.0U Expired - Lifetime CN203835791U (en) | 2014-05-22 | 2014-05-22 | Adjustable mechanical sealing device of S-type single-stage double-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605795A (en) * | 2017-07-25 | 2018-01-19 | 盐城美希密封件有限公司 | A kind of fan-shaped air force separate type sealing ring |
-
2014
- 2014-05-22 CN CN201420263153.0U patent/CN203835791U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605795A (en) * | 2017-07-25 | 2018-01-19 | 盐城美希密封件有限公司 | A kind of fan-shaped air force separate type sealing ring |
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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 |
Granted publication date: 20140917 |