CN219492698U - Vertical multistage pump string volume adjusting device - Google Patents

Abstract

The utility model discloses a vertical multistage pump string quantity adjusting device which comprises a bearing-like steel sleeve and a tool, wherein bolt holes are symmetrically formed in the bearing-like steel sleeve, through holes are symmetrically formed in the tool, the bearing-like steel sleeve comprises a coating layer, a first high-strength layer, a second high-strength layer, a third high-strength layer and a base material layer, the first high-strength layer is made of high-carbon steel, the second high-strength layer is made of iron-aluminum alloy, and the third high-strength layer is made of phase-change induced plastic steel. The utility model can measure the total serial quantity of the water pump through the tool, the bearing-like steel sleeve can be used for replacing a bearing to be arranged in the bearing box, the half serial quantity of the water pump can be measured in accordance with the total serial quantity measuring method of the water pump after the back cap is fastened, the assembly method of the vertical multi-stage pump can be improved, the installation flow is optimized, the maintenance quality is improved, the labor intensity and the consumption of spare parts and materials are reduced, the maintenance period is shortened, and the operation period of the vertical multi-stage pump is ensured and prolonged.

Description

Vertical multistage pump string volume adjusting device

Technical Field

The utility model relates to the technical field of vertical multistage pump string quantity adjustment, in particular to a vertical multistage pump string quantity adjustment device.

Background

The high-pressure water of the vertical multistage pump generates a rightward acting force (axial force) on the balance disc through the gap b0, so that the rotor part moves rightward, namely the balance disc is opened, a gap b is generated, and the high-pressure water enters the balance chamber through the gap b and then returns to the pump inlet through the balance pipe. When the resultant force to the left applied by the impeller balances the force to the right applied by the balance disc, the rotor no longer moves. And the stable running state is achieved. The measuring and adjusting method of the multistage pump string quantity comprises the following steps: 1. the balance disc and the balance ring are abutted, and then the shaft extending end face or the coupling end face is marked with a meter to record the lower meter reading. And then the coupler is pushed to adjust according to the clearance before assembly marked on the drawing. 2. Before the bearing is installed, the clearance between the balance ring and the balance disc is measured by using a feeler gauge, then the rotor is pushed to one end according to the requirement, and the reading of the meter at the moment is the clearance of the serial quantity. 3. The gap size can be adjusted by adding and subtracting gaskets on the inner side of the thrust bearing or the thrust disc, but when the conventional vertical multistage pump is assembled conventionally, the bearing and the bearing box are required to be disassembled for many times when various serial quantities and pressure quantities of the vertical multistage pump are adjusted, so that the labor intensity and the maintenance period of maintenance personnel are increased.

Disclosure of Invention

The utility model aims to provide a string quantity adjusting device of a vertical multistage pump, which has the advantages of improving the assembly method of the vertical multistage pump, optimizing the installation flow, improving the maintenance quality, reducing the labor intensity and spare parts, reducing the consumption of materials, reducing the maintenance period, ensuring and prolonging the operation period of the vertical multistage pump, solving the problems that when the conventional vertical multistage pump is assembled conventionally, the bearing and the bearing box are required to be detached for many times when various string quantities and pressure quantities of the vertical multistage pump are adjusted, the labor intensity and the maintenance period of maintenance personnel are increased, and because whether the bearing is installed in place or not can not be intuitively seen, certain error exists in the adjustment quantity of each time, under the condition, the maintenance quality can not be ensured, the maintenance times of the vertical multistage pump, the abrasion of spare parts and the labor intensity of maintenance personnel are increased, the working efficiency is reduced, and potential safety hazards exist in the process of the disassembly for many times.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a vertical multistage pump string volume adjusting device, includes class bearing steel bushing and frock, the bolt hole has been seted up to the symmetry on the class bearing steel bushing, the through-hole has been seted up to the symmetry on the frock, class bearing steel bushing includes dope layer, first high strength layer, second high strength layer, third high strength layer and substrate layer, first high strength layer is high carbon steel, the second high strength layer is the ferroaluminum alloy, the third high strength layer is phase transition induced plasticity steel, the substrate layer is the boron steel, the dope layer includes wear-resisting coating, first corrosion-resisting coating and second corrosion-resisting coating, wear-resisting coating is silicon carbide lacquer, first corrosion-resisting coating is iron red phenolic lacquer, the second corrosion-resisting coating is phenolic resin lacquer.

Preferably, the materials of the bearing-like steel sleeve and the tool are the same, and the number of the bearing-like steel sleeves is two.

Preferably, the thickness of the tool is 20mm, the inner diameter of the tool is 66mm, and the outer diameter of the tool is 285mm.

Preferably, the thickness of the bearing-like steel sleeve is 29mm, the outer diameter of the bearing-like steel sleeve is 140mm, and the inner diameter of the bearing-like steel sleeve is 55mm.

Preferably, the bolt hole is an M10 screw hole, and the aperture of the through hole is 20mm.

Preferably, the coating layer is coated on the outer part of the first high-strength layer, the first high-strength layer is positioned on the outer part of the second high-strength layer, the second high-strength layer is positioned on the outer part of the third high-strength layer, and the third high-strength layer is positioned on the outer part of the substrate layer.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model can improve the assembly precision, reduce the abrasion of spare parts, ensure the operation period, change the half-string adjustment mode of the vertical multistage pump, improve the maintenance efficiency, reduce the labor intensity, protect the integrity of key parts, reduce the waste of spare parts and materials, more intuitively see whether the key parts are assembled in place, simplify the adjustment of the machine sealing pressure quantity, reduce the adjustment times, better ensure the operation period of the vertical multistage pump and ensure the stable operation of a unit.

2. The utility model can play a role of corrosion resistance through the first corrosion-resistant coating and the second corrosion-resistant coating, can avoid being corroded by substances in the external environment in the long-time use process, can improve the service life, can avoid abrasion and drop of the first corrosion-resistant coating and the second corrosion-resistant coating in the long-time use process by utilizing the wear-resistant coating, can improve the strength by utilizing the first high-strength layer, the second high-strength layer and the third high-strength layer, and can avoid deformation and damage in the long-time use process.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the bearing-like steel sleeve according to the present utility model;

FIG. 3 is a schematic diagram of the structure of the coating layer of the present utility model.

In the figure: 1. bearing-like steel sleeves; 2. bolt holes; 3. a tool; 4. a through hole; 5. a coating layer; 501. a wear-resistant coating; 502. a first corrosion-resistant coating; 503. a second corrosion-resistant coating; 6. a first high strength layer; 7. a second high strength layer; 8. a third high strength layer; 9. a substrate layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, a vertical multistage pump string quantity adjusting device comprises a bearing-like steel sleeve 1 and a tool 3, wherein bolt holes 2 are symmetrically arranged on the bearing-like steel sleeve 1, through holes 4 are symmetrically arranged on the tool 3, the bearing-like steel sleeve 1 comprises a paint layer 5, a first high-strength layer 6, a second high-strength layer 7, a third high-strength layer 8 and a substrate layer 9, the first high-strength layer 6 is high-carbon steel, the second high-strength layer 7 is an iron-aluminum alloy, the third high-strength layer 8 is phase-change induced plastic steel, the substrate layer 9 is boron steel, the paint layer 5 comprises a wear-resistant coating 501, a first corrosion-resistant coating 502 and a second corrosion-resistant coating 503, the wear-resistant coating 501 is silicon carbide paint, the first corrosion-resistant coating 502 is iron red phenolic paint, the second corrosion resistant coating 503 is phenolic resin paint, the materials of the bearing-like steel sleeve 1 and the tool 3 are the same, the number of the bearing-like steel sleeves 1 is two, the thickness of the tool 3 is 20mm, the inner diameter of the tool 3 is 66mm, the outer diameter of the tool 3 is 285mm, the thickness of the bearing-like steel sleeve 1 is 29mm, the outer diameter of the bearing-like steel sleeve 1 is 140mm, the inner diameter of the bearing-like steel sleeve 1 is 55mm, the bolt hole 2 is an M10 screw hole, the aperture of the through hole 4 is 20mm, the coating layer 5 is coated on the outer part of the first high-strength layer 6, the first high-strength layer 6 is positioned on the outer part of the second high-strength layer 7, the second high-strength layer 7 is positioned on the outer part of the third high-strength layer 8, and the third high-strength layer 8 is positioned on the outer part of the substrate layer 9.

When the tool 3 is used, the total serial quantity of the water pump can be measured, the bearing-like steel sleeve 1 can be used for replacing a bearing to be installed in a bearing box, after a back cap is fastened, the half serial quantity of the water pump is measured in a consistent manner with the total serial quantity measuring method of the water pump, when the vertical multistage water pump is overhauled and assembled, the assembly precision can be improved, the abrasion of spare parts is reduced, the operation period is ensured, the half serial adjustment mode of the vertical multistage pump is changed, the overhauling efficiency can be improved, the labor intensity is reduced, the integrity of key parts is protected, the waste of spare parts and materials is reduced, whether the key parts are assembled in place or not can be more intuitively seen, the adjustment of the mechanical seal pressure quantity is simplified, the adjustment times is reduced, the operation period of the vertical multistage pump is better ensured, the stable operation of a unit is ensured, the corrosion-resistant effect can be played through the first corrosion-resistant coating 502 and the second corrosion-resistant coating 503, the corrosion by substances in the external environment in the long-time use process can be avoided, the service life can be prolonged, the wear-resistant coating 501 is utilized, the first corrosion-resistant coating 502 and the second corrosion-resistant coating can be prevented from falling down in the long-time use process in the first time environment, the high-strength and the high-strength wear-resistant coating layer 7 and the high-strength wear-resistant layer 7 in the long-time use process can be avoided in the first time and the high-strength and the wear-resistant layer 8.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a vertical multistage pump string volume adjusting device, includes class bearing steel bushing (1) and frock (3), its characterized in that: bolt hole (2) have been seted up to the symmetry on class bearing steel bushing (1), through-hole (4) have been seted up to the symmetry on frock (3), class bearing steel bushing (1) include dope layer (5), first high strength layer (6), second high strength layer (7), third high strength layer (8) and substrate layer (9), first high strength layer (6) are high carbon steel, second high strength layer (7) are the iron-aluminum alloy, third high strength layer (8) are phase transition induced plasticity steel, substrate layer (9) are the boron steel, dope layer (5) are including wear-resisting coating (501), first corrosion-resistant coating (502) and second corrosion-resistant coating (503), wear-resisting coating (501) are carborundum lacquer, first corrosion-resistant coating (502) are iron red phenolic lacquer, second corrosion-resistant coating (503) are phenolic resin lacquer.

2. The vertical multistage pump string amount adjustment device according to claim 1, characterized in that: the bearing-like steel sleeves (1) are made of the same materials as the tool (3), and the number of the bearing-like steel sleeves (1) is two.

3. The vertical multistage pump string amount adjustment device according to claim 1, characterized in that: the thickness of frock (3) is 20mm, the internal diameter of frock (3) is 66mm, the external diameter of frock (3) is 285mm.

4. The vertical multistage pump string amount adjustment device according to claim 1, characterized in that: the thickness of the bearing-like steel sleeve (1) is 29mm, the outer diameter of the bearing-like steel sleeve (1) is 140mm, and the inner diameter of the bearing-like steel sleeve (1) is 55mm.

5. The vertical multistage pump string amount adjustment device according to claim 1, characterized in that: the bolt hole (2) is an M10 screw hole, and the aperture of the through hole (4) is 20mm.

6. The vertical multistage pump string amount adjustment device according to claim 1, characterized in that: the coating layer (5) is coated on the outer part of the first high-strength layer (6), the first high-strength layer (6) is positioned on the outer part of the second high-strength layer (7), the second high-strength layer (7) is positioned on the outer part of the third high-strength layer (8), and the third high-strength layer (8) is positioned on the outer part of the base material layer (9).