CN218392355U

CN218392355U - Gravity box for oil-water separation of water guide oil cavity of cross-flow pump

Info

Publication number: CN218392355U
Application number: CN202220423048.3U
Authority: CN
Inventors: 边晓阳; 马仲益; 姜根基; 杨彬; 郑重; 顾红民; 夏春荣; 边乐陶
Original assignee: Wuxi Water Conservancy Project Management Center Wuxi Flood Control And Rescue Material Reserve Center
Current assignee: Wuxi Water Conservancy Project Management Center Wuxi Flood Control And Rescue Material Reserve Center
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2023-01-31
Anticipated expiration: 2032-03-01

Abstract

The utility model relates to the technical field of through-flow pumps, in particular to a gravity box for oil-water separation of a water guide oil cavity of a through-flow pump, which comprises a gravity box main body, wherein two layers of cross-flow corrugated plates are fixedly arranged inside the gravity box main body, and a solenoid valve is fixedly arranged at the bottom of the gravity box main body; the oil tank is characterized in that a liquid level observation window is fixedly arranged on the surface of the oil tank, a manual oil pressing pump is fixedly arranged at the top of the oil tank, and the manual oil pressing pump is communicated with the interior of the oil tank; has the advantages that: the gravity box is skillfully designed through the installation position, the installation position of the gravity box is lower than the 1.5 m position of the oil storage tank, the effect of naturally separating oil-water mixtures is achieved by utilizing the difference of oil and water densities and combining the gravity settling principle and the shallow pool theory, and the problem of water-guided oil-water emulsification is solved.

Description

Gravity box for oil-water separation of water guide oil cavity of cross-flow pump

Technical Field

The utility model relates to a tubular pump technical field specifically is a gravity box that is used for tubular pump water to lead oil pocket to stew oil water separating.

Background

The through-flow pump is one kind of horizontal axial-flow pump, and is assembled inside the pit of underwater concrete building with motor, speed reducer and water pump as one integral, and has water inlet and outlet channels in one straight line, similar to straight cylinder, less hydraulic loss, high water lifting efficiency, compact structure, convenient installation and maintenance and simple pump station structure. The cross-flow pump is a low-lift axial-flow pump, its lift is below 2 m, flow is large, structure is simple, cost is low and efficiency is high. Is suitable for drainage and irrigation in low-lying areas.

In the running process of the water pump, a water guide bearing on one side of a pump shaft, which is close to an impeller, is immersed in a flow channel below 5.5 meters (designed water level) for working for a long time, a small amount of water is inevitably led into an oil cavity of the water guide bearing in the rotating process of the pump shaft, and the abrasion of a bearing sealing element and the brought water are correspondingly increased along with the increase of the running platform of the water pump; when the bearing rotates, oil and water in the oil cavity are mixed to generate an emulsification phenomenon, and when the proportion of the water in the oil cavity exceeds a critical value, the emulsified oil gradually loses the protection on the lubrication and cooling of the bearing, so that the bearing burning of the water guide bearing can be caused, and even the shell collision accident of the impeller can be caused.

The original solution is as follows: the oil-water mixture is extracted manually at regular intervals, and then oil-water separation is carried out by an oil-water separation unit configured by a water pump manufacturer.

The technical team of the working room deeply explores the oil-water separation method, utilizes the difference of oil and water density, and combines the gravity settling principle and the shallow pool theory to achieve the effect of natural separation of oil-water mixture, and solves the problem of water-conduction oil-water emulsification.

The gravity box is successfully applied to a tubular pump oil lubricating system, brings great direct and indirect benefits, and has great popularization value.

Disclosure of Invention

An object of the utility model is to provide a gravity box that is used for through-flow pump water guide oil pocket oil-water separation to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a gravity box for through-flow pump water guide oil chamber oil-water separation includes

The gravity box comprises a gravity box main body, wherein two layers of cross-flow corrugated plates are fixedly arranged inside the gravity box main body, and an electromagnetic valve is fixedly arranged at the bottom of the gravity box main body;

the oil storage tank, the fixed surface of oil storage tank is provided with liquid level observation window, the fixed manual pressure oil pump that is provided with in top of oil storage tank, manual pressure oil pump with the inside of oil storage tank communicates with each other.

According to the technical scheme, oil in the oil cavity gradually rises and is gathered to the top of the oil cavity, water gradually sinks to the bottom of the oil cavity, an oil-water separation return pipe is arranged at the bottom of the oil cavity, the water flows back to the gravity box main body along the oil-water separation return pipe, the oil content of the water discharged into the gravity box main body is less than or equal to 19mg/L, two layers of cross-flow corrugated plates are additionally arranged at the lower part of the gravity box main body, oil-water separation is further carried out through standing, upper unit configuration software is logically arranged, the unit is started for 72 hours, and after the unit is stopped for 5 hours, the electromagnetic valve is automatically opened, and the water is discharged for 10 seconds; the discharged water is checked, the oil content is less than or equal to 5mg/L, and the environment is not influenced.

Preferably, the bottom of the oil storage tank is fixedly provided with a gravity oil supplementing pipe, and the gravity oil supplementing pipe is communicated with the oil storage tank.

Preferably, a manual oil pressing pipe is fixedly arranged on the surface of one side of the manual oil pressing pump, and the manual oil pressing pipe and the gravity oil supplementing pipe are communicated with the gravity box main body.

Preferably, the bottom of the gravity oil supplementing pipe is fixedly connected with an oil-water separation return pipe, and the oil-water separation return pipe is communicated with the gravity oil supplementing pipe, the manual oil pressing pipe and the gravity box main body.

Preferably, one end of the oil-water separation return pipe, which is far away from the gravity oil supplementing pipe, is fixedly provided with a water guide oil cavity, and the water guide oil cavity is communicated with the gravity oil supplementing pipe.

Preferably, an oil cavity overflow pipe is fixedly arranged on the upper surface of the water guide oil cavity, a return pipe is fixedly arranged at one end, far away from the water guide oil cavity, of the oil cavity overflow pipe, and the return pipe is communicated with the oil cavity overflow pipe.

Preferably, a through-flow pump shaft is fixedly arranged inside the water guide oil cavity.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the gravity box for oil-water separation of the water guide oil cavity of the through-flow pump, the gravity box achieves the effect of natural separation of oil-water mixtures by utilizing different oil and water densities and combining a shallow pool theory through a gravity settling principle, and the problem of oil-water emulsification of water guide is solved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the overall structure schematic diagram of the gravity box main body of the present invention.

In the figure: 1. a gravity box body; 2. an oil-water separation return pipe; 3. a cross-flow corrugated plate; 4. a liquid level observation window; 5. an oil storage tank; 6. a manual oil pump; 7. a tubular pump shaft; 8. a water guide oil cavity; 9. manually pressing a oil pipe; 10. a gravity oil supply pipe; 11. a return pipe; 12. an oil cavity overflow pipe; 13. an electromagnetic valve.

Detailed Description

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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-2, the present invention provides a technical solution:

The gravity box comprises a gravity box main body 1, wherein two layers of cross-flow corrugated plates 3 are fixedly arranged inside the gravity box main body 1, and an electromagnetic valve 13 is fixedly arranged at the bottom of the gravity box main body 1;

the oil storage tank 5, the fixed surface of oil storage tank 5 is provided with liquid level observation window 4, the fixed manual pressure oil pump 6 that is provided with in top of oil storage tank 5, manual pressure oil pump 6 with the inside of oil storage tank 5 communicates with each other.

Preferably, a gravity oil supply pipe 10 is fixedly arranged at the bottom of the oil storage tank 5, and the gravity oil supply pipe 10 is communicated with the oil storage tank 5.

Preferably, a manual oil pressing pipe 9 is fixedly arranged on the surface of one side of the manual oil pressing pump 6, and the manual oil pressing pipe 9 and the gravity oil supplementing pipe 10 are communicated with the gravity box main body 1.

Preferably, the bottom of the gravity oil supplementing pipe 10 is fixedly connected with an oil-water separation return pipe 2, and the oil-water separation return pipe 2 is communicated with the gravity oil supplementing pipe 10, the manual oil pressing pipe 9 and the gravity box main body 1.

Preferably, one end of the oil-water separation return pipe 2, which is far away from the gravity oil supplementing pipe 10, is fixedly provided with a water oil guide cavity 8, and the water oil guide cavity 8 is communicated with the gravity oil supplementing pipe 10.

Preferably, an oil chamber overflow pipe 12 is fixedly arranged on the upper surface of the water guide oil chamber 8, a return pipe 11 is fixedly arranged at one end of the oil chamber overflow pipe 12 far away from the water guide oil chamber 8, and the return pipe 11 is communicated with the oil chamber overflow pipe 12.

Preferably, a tubular pump shaft 7 is fixedly arranged inside the water guide oil chamber 8.

When the gravity box for oil-water separation of the water guide oil cavity 8 of the through-flow pump is used, firstly, the through-flow pump shaft 7 can bring water into the water guide oil cavity 8 in the rotating process, and the water brought in can be correspondingly increased along with the increase of the running platform of the water pump and the abrasion of a bearing sealing element; when the normal load operation is carried out for 72 hours, about 35 milliliters of water enters the water guide oil cavity 8, the water content of lubricating oil in the oil cavity is about 2.5 percent, and when the bearing rotates, the oil in the oil cavity is mixed with the water to generate emulsification, so that the lubrication and cooling of the bearing can be obviously influenced, when the proportion of the water in the oil cavity exceeds a critical value, the emulsified oil gradually loses the protection on the lubrication and cooling of the bearing, the water guide bearing is burned, and even the shell collision accident of an impeller occurs, so that the unit has to be shut down for 72 hours of operation and maintenance;

after the machine is stopped, the emulsion in the water guide oil cavity 8 is in a static state, because the density of oil and water is different, according to the gravity settling principle, the oil is light and the water is heavy, after the machine is kept still for about 1 hour, the oil in the oil cavity can gradually rise and gather to the top of the oil cavity, the water can gradually sink to the bottom of the oil cavity, an oil-water separation return pipe 2 is arranged at the bottom of the oil cavity, the water can flow back to the gravity box main body 1 along the oil-water separation return pipe 2, the installation position of the oil-water separation return pipe is lower than the position of one point five meters of an oil storage tank 5, the oil content of the water discharged into the gravity box main body 1 is less than or equal to 19mg/L, two layers of cross-flow corrugated plates 3 are additionally arranged at the lower part of the gravity box main body 1, the oil-water separation is further carried out through the standing, the upper machine configuration software is logically arranged, the machine is started for 72 hours, after the machine is stopped for 5 hours, the electromagnetic valve 13 is automatically opened, and the water is discharged for 10 seconds; the discharged water is checked, the oil content is less than or equal to 5mg/L, and the environment is not influenced.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a gravity box that is used for through-flow pump water guide oil pocket oil-water separation which characterized in that: the gravity box for oil-water separation of the water guide oil cavity of the cross-flow pump comprises

The gravity box comprises a gravity box main body (1), wherein two layers of cross-flow corrugated plates (3) are fixedly arranged inside the gravity box main body (1), and an electromagnetic valve (13) is fixedly arranged at the bottom of the gravity box main body (1);

the oil storage tank (5), the fixed surface of oil storage tank (5) is provided with liquid level observation window (4), the fixed manual pressure oil pump (6) that is provided with in top of oil storage tank (5), manual pressure oil pump (6) with the inside of oil storage tank (5) communicates with each other.

2. The gravity box for oil-water separation of a through-flow pump water-conducting oil chamber according to claim 1, wherein: the bottom of the oil storage tank (5) is fixedly provided with a gravity oil supplementing pipe (10), and the gravity oil supplementing pipe (10) is communicated with the oil storage tank (5).

3. The gravity box for oil-water separation of a water guide oil chamber of a through-flow pump as claimed in claim 2, wherein: and a manual oil pressing pipe (9) is fixedly arranged on the surface of one side of the manual oil pressing pump (6), and the manual oil pressing pipe (9) and the gravity oil supplementing pipe (10) are communicated with the gravity box main body (1).

4. The gravity box for oil-water separation of a water guide oil chamber of a through-flow pump as claimed in claim 3, wherein: the bottom of the gravity oil supplementing pipe (10) is fixedly connected with an oil-water separation return pipe (2), and the oil-water separation return pipe (2) is communicated with the gravity oil supplementing pipe (10), the manual oil pressing pipe (9) and the gravity box main body (1).

5. The gravity box for oil-water separation of a through-flow pump water-conducting oil chamber according to claim 4, wherein: and one end of the oil-water separation return pipe (2) far away from the gravity oil supplementing pipe (10) is fixedly provided with a water oil guide cavity (8), and the water oil guide cavity (8) is communicated with the gravity oil supplementing pipe (10).

6. The gravity box for oil-water separation of a through-flow pump water-conducting oil chamber according to claim 5, wherein: an oil cavity overflow pipe (12) is fixedly arranged on the upper surface of the water guide oil cavity (8), a return pipe (11) is fixedly arranged at one end, far away from the water guide oil cavity (8), of the oil cavity overflow pipe (12), and the return pipe (11) is communicated with the oil cavity overflow pipe (12).

7. The gravity box for oil-water separation of a water guide oil chamber of a through-flow pump as claimed in claim 5, wherein: and a tubular pump shaft (7) is fixedly arranged in the water guide oil cavity (8).