CN210152998U - Slurry pump capable of prolonging service life of mechanical seal - Google Patents
Slurry pump capable of prolonging service life of mechanical seal Download PDFInfo
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- CN210152998U CN210152998U CN201822209928.7U CN201822209928U CN210152998U CN 210152998 U CN210152998 U CN 210152998U CN 201822209928 U CN201822209928 U CN 201822209928U CN 210152998 U CN210152998 U CN 210152998U
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Abstract
The utility model discloses a slurry pump capable of prolonging the service life of a mechanical seal, which relates to the technical field of slurry pumps and aims to solve the technical problems of short service life of the mechanical seal, frequent maintenance, reduced operation rate and increased cost in the prior art, and comprises a bracket, wherein a pump body, a sealing ring, an impeller, a pump cover, a bearing box body, the mechanical seal, a bearing front gland, a pump shaft, a bearing rear gland and a pump coupler are sequentially arranged along one end to the other end of the bracket, the mechanical seal, the bearing front gland and the pump shaft are all arranged inside the bearing box body, the bearing rear gland is fixedly connected with the end part of the bearing box body, the mechanical seal is a container type mechanical seal, an external flushing and cooling device is arranged on the bearing box body, and the technical proposal can improve the installation precision, improve the heat dissipation effect of the mechanical seal, prevent dry burning and reduce the maintenance times, thereby greatly improving the, the equipment cost and the labor cost are reduced.
Description
Technical Field
The utility model relates to a sediment stuff pump technical field especially relates to a can improve mechanical seal life's sediment stuff pump.
Background
The slurry pump is an important device commonly used in a mine for slurry conveying operation, and generally adopts a multi-stage pressurization mode to convey slurry, and the sealing failure of the slurry pump can bring serious damage to the production of an enterprise.
Mechanical seals are a critical factor affecting pump quality and preventing pump body leakage, and are used extensively in slurry pumps to increase the useful life of mechanical seals. The basic concept of a mechanical seal is to control leakage between a stationary element and a rotating element by restricting the flow of fluid between two flat end faces of the seal. The device is composed of at least one pair of end faces perpendicular to the rotation axis, and under the combined action of fluid pressure and the elasticity of the compensation mechanism and the cooperation of the auxiliary sealing ring, the end faces are kept in fit and relatively slide to form the device for controlling fluid leakage. If the proximity of the two end faces is controlled properly, a certain balance between leakage and wear can be achieved. If the two end faces are too far apart, excessive leakage can occur; if too close, the wear may damage the end faces.
The mechanical sealing device has the advantages of good sealing performance, compact size, long service life, low power consumption and the like, and is widely used in chemical production in recent years. In the mineral separation production, because the fluid medium is ore pulp containing more than 60% of slag and medicament, the slurry pump has high sealing requirements, and the mechanical seal has the advantages of reliable sealing performance, small leakage amount and small power loss, but the mechanical seal has the problem of idle running and dry grinding, so the service life of the mechanical seal is only 5d to 7 d.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve mechanical seal life's sediment stuff pump has solved above technical problem.
In order to realize the technical purpose, the utility model discloses the technical scheme who adopts is: the utility model provides a can improve mechanical seal life's sediment stuff pump, includes the support, has set gradually the pump body, sealing ring, impeller, pump cover, bearing box, mechanical seal, gland before bearing, pump shaft, gland and pump coupling behind the bearing along the one end to the other end of support, gland and pump shaft all set up inside the bearing box before mechanical seal, bearing, gland and bearing box tip fixed connection behind the bearing, mechanical seal is collection dress formula mechanical seal, be provided with outside washing and cooling device on the bearing box.
By implementing the technical scheme, the slurry pump adopts the integrated mechanical seal, so that the installation precision of the slurry pump can be improved, and the probability of influencing the service life of the mechanical seal due to manual operation is reduced; the external flushing cooling device is additionally arranged, so that the heat dissipation effect of mechanical seal can be improved, the sealing surface is cooled, and dry burning caused by generation of large amount of heat due to friction of the sealing surface is prevented.
As a preferred technical scheme: the mechanical seal is sleeved on the pump shaft through a shaft sleeve and fixed through a locking ring, a water inlet and a water outlet are symmetrically arranged on the mechanical seal, and the positions of the water inlet and the water outlet are communicated with the external washing and cooling device. The locking ring is used for fixing instead of pin fixing, so that the stress area is increased, the stress is reduced, and the service life of the mechanical seal is prolonged; the water inlet and the water outlet are symmetrically arranged, so that the processing is convenient, and the pressure of the manufacturing process is reduced.
As a preferred technical scheme: the water inlet and the water outlet are provided with a water seal and a positioning sheet, and a spring is sleeved outside the shaft sleeve. The water seal and the positioning sheet are arranged to further fix the relative positions of the shaft sleeve and the mechanical seal, and meanwhile, the air tightness of the external flushing and cooling device, the water inlet and the water outlet is enhanced, and leakage is prevented.
As a preferred technical scheme: the spring specific pressure of the spring is 0.15MPa-0.25 MPa. Because the mechanical seal spring specific pressure is too large, the friction heat of the sealing surface is too large, so that lubricating liquid is not easy to form a lubricating liquid film between the sealing surfaces, and then the dry burning phenomenon is generated, the mechanical seal spring specific pressure is reduced, the lubrication of the sealing surface can be ensured, and the service life of the mechanical seal is prolonged.
As a preferred technical scheme: the external washing and cooling device comprises a drainage pipeline and a washing tax control, and is provided with a manual valve. The purpose of this scheme is: the device is convenient for workers to carry out timely flushing work on equipment and pipelines after the pump is stopped, and the sealing cavity is prevented from being blocked by media.
The utility model has the advantages that: a kind of slurry pump that can improve the mechanical seal service life, in carrying on the mineral processing production working process, can improve the service life of the mechanical seal greatly, lengthen from original 5d-7d to 4 months-5 months; meanwhile, the service life of the mechanical seal is prolonged, and the maintenance frequency can be reduced, so that the production operation efficiency is greatly improved, and the equipment cost and the labor cost are reduced.
Drawings
FIG. 1 is a schematic view of a mechanical seal;
FIG. 2 is a schematic structural view of a slurry pump capable of prolonging the service life of a mechanical seal according to the present invention;
in the figure: 1. the pump comprises a pump body, 2. a sealing ring, 3. an impeller, 4. a pump cover, 5. a bearing box body, 6. a mechanical seal, 601. a shaft sleeve, 602. a water inlet, 603. a water outlet, 604. a positioning sheet, 605. a water seal, 606. a locking ring, 607. a spring, 7. a bearing front gland, 8. a pump shaft, 9. a bearing rear gland and 10. a support.
Detailed Description
The present invention will be further described with reference to the accompanying drawings;
in the attached figures 1 and 2: the utility model provides a can improve 6 life's of mechanical seal sediment stuff pump, includes support 10, has set gradually pump body 1, sealing ring 2, impeller 3, pump cover 4, bearing box 5, mechanical seal 6, gland 7 before the bearing, pump shaft 8, gland 9 and pump shaft coupling behind the bearing along the one end to the other end of support 10, gland 7 and pump shaft 8 all set up inside the bearing box before mechanical seal 6, the bearing, gland 9 and 5 end fixed connections of bearing box behind the bearing, mechanical seal 6 is collection dress formula mechanical seal, be provided with outside washing cooling device on the bearing box 5.
By implementing the technical scheme, the slurry pump adopts the integrated mechanical seal, so that the installation precision of the slurry pump can be improved, and the probability of influencing the service life of the mechanical seal 6 due to manual operation is reduced; the external flushing cooling device is additionally arranged, so that the heat dissipation effect of the mechanical seal 6 can be improved, the sealing surface is cooled, and dry burning caused by generation of a large amount of heat due to friction of the sealing surface is prevented.
As a preferred technical scheme: the mechanical seal 6 is sleeved on the pump shaft 8 through a shaft sleeve 601 and fixed through a locking ring 606, a water inlet 602 and a water outlet 603 are symmetrically arranged on the mechanical seal 6, and the positions of the water inlet 602 and the water outlet 603 are communicated with the external washing and cooling device. The locking ring 606 is used for fixing instead of pin fixing, so that the stress area is increased, the stress is reduced, and the service life of the mechanical seal 6 is prolonged; the water inlet 602 and the water outlet 603 are symmetrically arranged, so that the processing is convenient, and the pressure of the manufacturing process is reduced.
As a preferred technical scheme: a water seal 605 and a positioning sheet 604 are arranged at the water inlet 602 and the water outlet 603, and a spring 607 is sleeved outside the shaft sleeve 601. The water seal 605 and the positioning plate 604 are arranged to further fix the relative positions of the shaft sleeve 601 and the mechanical seal 6, and simultaneously enhance the air tightness of the external flushing and cooling device with the water inlet 602 and the water outlet 603, and prevent leakage.
As a preferred technical scheme: the spring 607 has a spring specific pressure of 0.15MPa to 0.25 MPa. Because the mechanical seal 6 has overlarge spring specific pressure, the friction heat of the sealing surface is overlarge, so that the lubricating liquid is not easy to form a lubricating liquid film between the sealing surfaces, and then the dry burning phenomenon is generated, thereby reducing the spring specific pressure of the mechanical seal 6, ensuring the lubrication of the sealing surface, prolonging the service life of the mechanical seal 6,
as a preferred technical scheme: the external washing and cooling device comprises a drainage pipeline and a washing tax control, and is provided with a manual valve. The purpose of this scheme is: the device is convenient for workers to carry out timely flushing work on equipment and pipelines after the pump is stopped, and the sealing cavity is prevented from being blocked by media.
The utility model has the advantages that: a can improve the slurry pump of the service life of the mechanical seal 6, in carrying on the mineral processing production working process, can improve the service life of the mechanical seal 6 greatly, lengthen from original 5d-7d to 4 months-5 months; meanwhile, the service life of the mechanical seal 6 is prolonged, and the maintenance frequency can be reduced, so that the production operation efficiency is greatly improved, and the equipment cost and the labor cost are reduced.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. The utility model provides a can improve mechanical seal life's sediment stuff pump, includes the support, has set gradually the pump body (1), sealing ring (2), impeller (3), pump cover (4), bearing box (5), mechanical seal (6), gland (7) before the bearing, pump shaft (8), bearing rear gland (9) and pump shaft coupling along the one end to the other end of support, gland (7) and pump shaft (8) all set up inside bearing box (5) before mechanical seal (6), the bearing, gland (9) and bearing box (5) tip fixed connection behind the bearing, its characterized in that: the mechanical seal (6) is a container type mechanical seal, and an external washing and cooling device is arranged on the bearing box body (5).
2. The slurry pump capable of improving the service life of the mechanical seal according to claim 1, characterized in that: the mechanical seal (6) is sleeved on the pump shaft (8) through a shaft sleeve (601) and fixed through a locking ring (606), a water inlet (602) and a water outlet (603) are symmetrically arranged on the mechanical seal (6), and the positions of the water inlet (602) and the water outlet (603) are communicated with the external washing and cooling device.
3. The slurry pump capable of improving the service life of the mechanical seal according to claim 2, wherein: the water seal (605) and the positioning sheet (604) are arranged at the water inlet (602) and the water outlet (603), and the spring (607) is sleeved outside the shaft sleeve (601).
4. The slurry pump capable of improving the service life of the mechanical seal according to claim 3, wherein: the spring specific pressure of the spring (607) is 0.15MPa-0.25 MPa.
5. The slurry pump capable of improving the service life of the mechanical seal according to any one of claims 1 to 4, wherein: the external washing and cooling device comprises a drainage pipeline and a washing tax control, and is provided with a manual valve.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820437762 | 2018-03-29 | ||
| CN2018204377621 | 2018-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210152998U true CN210152998U (en) | 2020-03-17 |
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ID=69754294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822209928.7U Active CN210152998U (en) | 2018-03-29 | 2018-12-27 | Slurry pump capable of prolonging service life of mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210152998U (en) |
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2018
- 2018-12-27 CN CN201822209928.7U patent/CN210152998U/en active Active
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