CN215433450U - Disassembling tool for pump seal assembly of reactor cooler - Google Patents
Disassembling tool for pump seal assembly of reactor cooler Download PDFInfo
- Publication number
- CN215433450U CN215433450U CN202023285183.6U CN202023285183U CN215433450U CN 215433450 U CN215433450 U CN 215433450U CN 202023285183 U CN202023285183 U CN 202023285183U CN 215433450 U CN215433450 U CN 215433450U
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- auxiliary
- tool
- auxiliary mechanism
- seal assembly
- elastic
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- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model belongs to the technical field of maintenance engineering of rotating equipment of a nuclear power station, and particularly relates to a disassembling tool for a pump seal assembly of a reactor cooler, which comprises an auxiliary supporting cylinder, an auxiliary fixing disc, an elastic auxiliary mechanism adjusting bolt, a spring, a spherical contact and a connecting hole; the elastic force auxiliary mechanism is internally and sequentially filled with a plurality of spherical contacts, springs and elastic force auxiliary mechanism adjusting bolts, the elastic force auxiliary mechanisms are uniformly fixed around the auxiliary fixing disc, and the spherical contacts on the elastic force auxiliary mechanism are tightly attached to the inner wall of the auxiliary supporting cylinder. The tool and the method for disassembling and assembling the mechanical seal assembly of the reactor cooler pump can avoid huge economic loss and unit output loss caused by jamming and damage of the mechanical seal assembly and the pump shaft, improve the maintenance efficiency and reduce the irradiation time of personnel.
Description
Technical Field
The utility model belongs to the technical field of maintenance engineering of rotating equipment of nuclear power stations, and particularly relates to a disassembling tool for a pump seal assembly of a reactor cooler.
Background
The main pump is used for establishing forced circulation of a loop medium and conducting heat export of the reactor. The pump is a single-stage vertical multi-machine seal centrifugal pump, and a machine seal assembly of the pump is mainly used for sealing a loop medium and bears huge working pressure in the system. According to the requirements of the equipment maintenance outline, one main pump needs to be disassembled and overhauled every four reactor refueling periods, wherein the disassembly and overhaul of the mechanical seal assembly are included. In the disassembly and installation processes of the mechanical seal assembly, because the total clearance value of the inner sleeve of the mechanical seal assembly and the pump shaft is small and is only tens of micrometers, the mechanical seal assembly cannot move vertically relative to the pump shaft due to the small size deviation and the installation matching distance of one meter close to the mechanical seal assembly, and the jamming phenomenon occurs, so that the mechanical seal assembly and the pump shaft are damaged and unusable, huge economic loss is brought, the overhaul progress of the unit is delayed, and the production benefit of the whole unit is reduced.
Therefore, it is necessary to provide a tool for disassembling a pump seal assembly of a reactor cooler so as to solve the defects existing in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a disassembling tool for a pump seal assembly of a reactor cooler, which has a simple structure and is convenient to use, and can be used for assisting in limiting the movement track in the disassembling and assembling processes of the pump seal assembly of a main pump, so that the relative vertical movement relation between the pump seal assembly and a pump shaft is ensured, and the shaft clamping phenomenon is avoided.
The technical scheme for realizing the purpose of the utility model is as follows:
a kind of reactor cooler pump machine seals the assembly disassembly and assembly tool, this tool includes supporting the tube auxiliarily, assists the fixed disk, elasticity auxiliary mechanism adjusting bolt, spring, spherical contact and attachment hole;
the elastic force auxiliary mechanism is internally and sequentially filled with a plurality of spherical contacts, springs and elastic force auxiliary mechanism adjusting bolts, the elastic force auxiliary mechanisms are uniformly fixed around the auxiliary fixing disc, and the spherical contacts on the elastic force auxiliary mechanism are tightly attached to the inner wall of the auxiliary supporting cylinder.
The surface of the auxiliary fixing disk is provided with a connecting hole, and the auxiliary fixing disk is fixedly arranged above the main pump mechanical seal assembly through a fixing disk fastening bolt and the connecting hole.
And adjusting the adjusting bolt of the elastic auxiliary mechanism to enable the spherical contact to do reciprocating motion in the elastic auxiliary mechanism.
The elastic auxiliary mechanism is fixedly connected above the auxiliary fixing disc through an elastic auxiliary mechanism fixing bolt.
The spherical contact at one end of the elastic auxiliary mechanism is suspended to extend out of the outer edge of the auxiliary fixing disc and is tightly attached to the inner wall of the auxiliary supporting cylinder.
The auxiliary supporting cylinder keeps concentric with the pump shaft of the main pump through a cylinder body adjusting bolt.
The auxiliary supporting cylinder is fixedly connected above the main pump main flange through a cylinder fastening bolt.
The utility model has the beneficial technical effects that:
(1) the disassembling tool for the pump seal assembly of the reactor cooler is simple in structure and convenient to use;
(2) the disassembly and assembly tool for the pump seal assembly of the reactor cooler can enable the pump shaft of the main pump and the auxiliary supporting cylinder to be in a concentric position through the adjusting bolt of the cylinder body of the auxiliary supporting cylinder;
(3) the disassembly and assembly tool for the mechanical seal assembly of the reactor cooler pump can stabilize the micro displacement of the mechanical seal assembly in the disassembly or assembly process through the elastic auxiliary mechanism, ensure the relative vertical position between the mechanical seal assembly and the pump shaft and avoid the phenomenon of jamming in the movement process;
(4) the tool for disassembling and assembling the mechanical seal assembly of the reactor cooler pump can avoid huge economic loss and unit output loss caused by jamming and damage of the mechanical seal assembly and the pump shaft;
(5) the disassembly and assembly tool for the pump seal assembly of the reactor cooler, disclosed by the utility model, has the advantages that the overhaul efficiency is improved, and the irradiation time of personnel is reduced.
Drawings
FIG. 1 is a schematic view of a tool for assembling and disassembling a pump seal assembly of a reactor cooler according to the present invention;
FIG. 2 is a schematic structural view of an elastic assisting mechanism in a tool for assembling and disassembling a pump seal assembly of a reactor cooler according to the present invention;
FIG. 3 is a top view of the structure of the elastic auxiliary mechanism in the tool for assembling and disassembling the pump seal assembly of the reactor cooler according to the present invention;
FIG. 4 is a drawing showing the assembly and disassembly tools for the pump seal assembly of the reactor cooler according to the present invention;
in the figure: 1-an auxiliary support cylinder; 2-fixing the disc; 3-fixing the disc fastening bolt; 4-an elastic force assisting mechanism; 5-fixing the bolt by the elastic auxiliary mechanism; 6-adjusting the bolt by the elastic auxiliary mechanism; 7-a spring; 8-ball contacts; 9-connecting hole; 10-cylinder adjusting bolt; 11-cylinder fastening bolts; 12-main pump shaft; 13-main pump main flange; 14-main pump seal assembly.
Detailed Description
In order to make those skilled in the art better understand the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention. It should be apparent that the embodiments described below are only some, but not all, of the embodiments of the present invention. All other embodiments that can be derived by a person skilled in the art from the embodiments described herein without inventive step are within the scope of the present invention.
As shown in fig. 1, 2 and 3, the tool for disassembling and assembling a pump seal assembly of a reactor cooler provided by the utility model comprises an auxiliary support cylinder 1, a fixed disk 2, a fixed disk fastening bolt 3, an elastic force auxiliary mechanism 4, an elastic force auxiliary mechanism fixing bolt 5, an elastic force auxiliary mechanism adjusting bolt 6, a spring 7, a spherical contact 8, a connecting hole 9, a cylinder adjusting bolt 10 and a cylinder fastening bolt 11.
The elastic force auxiliary mechanism 4 is internally and sequentially filled with a spherical contact 8, a spring 7 and an elastic force auxiliary mechanism adjusting bolt 6, and the spherical contact 8 makes reciprocating motion in the elastic force auxiliary mechanism 4 by adjusting the elastic force auxiliary mechanism adjusting bolt 6; the elastic auxiliary mechanism 4 is fixed on the fixed disc 2, and the spherical contact 8 on the elastic auxiliary mechanism 4 is tightly attached to the inner wall of the auxiliary support cylinder 1.
The fixed disk 2 is provided with a connecting hole 9, and the fixed disk 2 is fixedly arranged above the main pump seal assembly 14 through the fixed disk fastening bolt 3 and the connecting hole 9.
Wherein, the elastic force auxiliary mechanism 4 is filled with a spherical contact 8, a spring 7 and an elastic force auxiliary mechanism adjusting bolt 6 in sequence, and the spherical contact 8 makes reciprocating motion in the elastic force auxiliary mechanism 4 by adjusting the elastic force auxiliary mechanism adjusting bolt 6;
meanwhile, the elastic force auxiliary mechanism 4 is fixedly connected above the fixed disk 2 through an elastic force auxiliary mechanism fixing bolt 5, and the spherical contact 8 is suspended to extend out of the outer edge of the fixed disk 2.
When the auxiliary support cylinder is used, the auxiliary support cylinder 1 is lifted above a main pump main flange 13, is concentric with a main pump shaft 12 through a cylinder adjusting bolt 10, and is fixed above the main pump main flange 13 through a cylinder fastening bolt 11. The elastic auxiliary mechanism 4 is installed above the fixed disc 2 by using an elastic auxiliary mechanism fixing bolt 5, the fixed disc 2 and the elastic auxiliary mechanism 4 are integrally installed above the main pump mechanical seal component 14, the elastic auxiliary mechanism adjusting bolt 6 is adjusted, so that the spherical contact 8 of the elastic auxiliary mechanism 4 is abutted against the inner wall of the auxiliary supporting cylinder 1, the main pump mechanical seal component 14 is slowly lifted or lowered by hoisting equipment, and stable disassembly and assembly are realized.
As shown in fig. 4, a method for assembling and disassembling a tool for assembling and disassembling a pump seal assembly of a reactor cooler includes the following steps:
step 1: installing and fixing the auxiliary supporting cylinder 1;
step 1.1: hoisting the auxiliary support cylinder 1 above a main pump main flange 13 by using a hoisting tool, and pre-tightening the auxiliary support cylinder above the main pump main flange 13 by using a cylinder fastening bolt 11;
step 1.2: the relative position between the auxiliary supporting cylinder 1 and the main pump shaft 12 is adjusted through the direct reverse contact force of the cylinder adjusting bolt 10 and the main pump main flange 13, so that the positions of the auxiliary supporting cylinder and the main pump shaft are concentric, and the guiding effect is realized.
Step 2: assembling the fixed disc 2 and the main pump seal assembly 14;
a hoisting tool is used for hoisting the fixed disc 2 and the elastic force auxiliary mechanism 4 to the position above the main pump mechanical seal assembly 14, and the fixed disc is connected with a hoisting bolt hole above the main pump mechanical seal assembly 14 through the fixed disc fastening bolt 3, so that the fixed disc and the main pump mechanical seal assembly are a reliable whole.
And step 3: installing a main pump mechanical seal assembly 14;
step 3.1: a lifting tool is used for transferring the combination of the fixed disc 2 and the main pump mechanical seal assembly 14 to the position above the main pump shaft 12, and the lifting equipment is slowly adjusted to be in a concentric position;
step 3.2: adjusting the bolt 6 of the elastic auxiliary mechanism to ensure that the spherical contact 8 is attached to the inner wall of the auxiliary supporting cylinder 1 and the stress is uniform;
step 3.3; descending hoisting equipment to enable the main pump mechanical seal assembly 14 to descend at a constant speed along the main pump shaft 12, constantly keeping the spherical contact 8 attached to the inner wall of the auxiliary support cylinder 1 in the descending process to realize a guiding effect, avoiding large-amplitude shaking and inclination in the descending process of the main pump mechanical seal assembly 14 through the buffering effect of the spring 7 in the elastic auxiliary mechanism 4, and reducing the jamming risk of the main pump mechanical seal assembly on the main pump shaft 12;
step 3.4: the main pump unit assembly 14 is connected with a main pump main flange 13 after falling to an installation position;
and 4, step 4: dismantling the disassembling tool for the pump seal assembly of the reactor cooler;
step 4.1: loosening the fastening bolt 3 of the fixed disc to separate the fixed disc 2 from the main pump mechanical seal assembly 14, and hoisting the fixed disc to a specified storage position by using hoisting equipment;
step 4.2; and loosening the cylinder fastening bolt 11 to separate the auxiliary support cylinder 1 from the main pump main flange 13, and hoisting the auxiliary support cylinder to a specified storage position by using hoisting equipment.
The present invention has been described in detail with reference to the drawings and examples, but the present invention is not limited to the examples, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The prior art can be adopted in the content which is not described in detail in the utility model.
Claims (7)
1. The utility model provides a reactor cooler pump machine seals subassembly assembly and disassembly tools which characterized in that: the tool comprises an auxiliary supporting cylinder (1), an auxiliary fixing disc (2), an elastic force auxiliary mechanism (4), an elastic force auxiliary mechanism adjusting bolt (6), a spring (7) and a spherical contact (8);
wherein, fill spherical contact (8), spring (7) and elasticity complementary unit adjusting bolt (6) in proper order in elasticity complementary unit (4), elasticity complementary unit (4) have a plurality ofly, evenly fix around assisting fixed disk (2), and spherical contact (8) on elasticity complementary unit (4) and the inner wall of auxiliary stay section of thick bamboo (1) closely laminate.
2. The tool of claim 1, wherein: the surface of the auxiliary fixing disc (2) is provided with a connecting hole (9), and the auxiliary fixing disc (2) is fixedly arranged above the main pump sealing assembly (14) through a fixing disc fastening bolt (3) and the connecting hole (9).
3. The tool of claim 2, wherein: and adjusting the adjusting bolt (6) of the elastic auxiliary mechanism to enable the spherical contact (8) to do reciprocating motion in the elastic auxiliary mechanism (4).
4. The tool of claim 3, wherein: the elastic auxiliary mechanism (4) is fixedly connected above the auxiliary fixing disc (2) through an elastic auxiliary mechanism fixing bolt (5).
5. The tool of claim 4, wherein: the spherical contact (8) at one end of the elastic auxiliary mechanism (4) is suspended to extend out of the outer edge of the auxiliary fixed disk (2) and is tightly attached to the inner wall of the auxiliary support cylinder (1).
6. The tool of claim 5, wherein: the auxiliary supporting cylinder (1) is concentric with a main pump shaft (12) through a cylinder body adjusting bolt (10).
7. The tool of claim 6, wherein: the auxiliary supporting cylinder (1) is fixedly connected above a main pump main flange (13) through a cylinder fastening bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285183.6U CN215433450U (en) | 2020-12-30 | 2020-12-30 | Disassembling tool for pump seal assembly of reactor cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285183.6U CN215433450U (en) | 2020-12-30 | 2020-12-30 | Disassembling tool for pump seal assembly of reactor cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215433450U true CN215433450U (en) | 2022-01-07 |
Family
ID=79681492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023285183.6U Withdrawn - After Issue CN215433450U (en) | 2020-12-30 | 2020-12-30 | Disassembling tool for pump seal assembly of reactor cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215433450U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677093A (en) * | 2020-12-30 | 2021-04-20 | 江苏核电有限公司 | Tool and method for disassembling pump seal assembly of reactor cooler |
-
2020
- 2020-12-30 CN CN202023285183.6U patent/CN215433450U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112677093A (en) * | 2020-12-30 | 2021-04-20 | 江苏核电有限公司 | Tool and method for disassembling pump seal assembly of reactor cooler |
| CN112677093B (en) * | 2020-12-30 | 2024-06-11 | 江苏核电有限公司 | Disassembling tool and method for pump seal assembly of reactor cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220107 Effective date of abandoning: 20240611 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220107 Effective date of abandoning: 20240611 |