CN216044669U

CN216044669U - Vacuum water diversion device

Info

Publication number: CN216044669U
Application number: CN202120984063.0U
Authority: CN
Inventors: 孙兴来; 商意; 孙朝; 阴海宗; 刘思强
Original assignee: Chinaust Plastics Corp Ltd
Current assignee: Chinaust Plastics Corp Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2022-03-15
Anticipated expiration: 2031-05-10

Abstract

The application discloses vacuum diversion device includes: the vacuum box is used for providing a closed cavity; the water suction pipe is communicated with the vacuum box and is used for sucking the water at the low position into the vacuum box at the high position; the water outlet pipe is used for connecting the vacuum box and the water pump, and a water replenishing valve is arranged on a pipeline of the water outlet pipe; and the exhaust valve is arranged at the top of the vacuum box and used for exhausting the air in the vacuum box. The application discloses a vacuum water diversion device, the bottom valve that irritates the diversion dress before filling water with water pump suction pipe bottom in order to start gets rid of, its theory of operation is that when the water pump operates, what absorb at first is the water in the vacuum chamber, because the water in the vacuum chamber is discharged in the short time, forms certain vacuum in the vacuum chamber at this moment, and the water in the suction well gets into the vacuum box through the suction pipe under the effect of external atmospheric pressure to the normal drainage of water pump has been guaranteed.

Description

Vacuum water diversion device

Technical Field

The application relates to the technical field of water diversion devices, in particular to a vacuum water diversion device.

Background

In the prior art, plastic pipes with various specifications are produced by adopting an extruder. The surface temperature of the general pipe after extrusion molding is very high, a spray cooling device is needed for cooling and shaping, a vacuum tank and a spray box for spraying need continuous cold water to enter so as to carry away the heat of the pipe, and the cold water is sourced from cooling water of an underground circulating water pit and needs a centrifugal water pump to pump the water out.

Fig. 1 is a schematic view of a prior art priming device. As shown in figure 1, the water diversion device adopts a bottom valve 0 type water pump starting mode, a centrifugal water pump utilizes a water suction pipe 3 to suck water from a water suction well, a bottom valve 0 is positioned in a water filter at the tail end of the water suction pipe 3, and a water replenishing valve 6 is positioned on the water suction pipe 3 and close to the water pump.

The centrifugal water pump is a fluid machine for conveying liquid, and it utilizes the working action of rotating impeller to liquid to transfer the mechanical energy of prime mover to the liquid so as to increase the energy (potential energy, pressure energy and speed energy) of the liquid. The centrifugal water pump has impeller with certain number of blades fixed onto the pump shaft and driven by the pump shaft to rotate, and after the pump is started, the impeller rotates with the pump shaft to inject water into the flow channels of the blades for forward rotation under the action of the blades. At this time, the inlet of the impeller is vacuumed by the discharge of water, and the water in the suction well is forced into the inlet of the impeller by the atmospheric pressure. Thus, the rotating impeller continuously sucks and discharges water. When the water pump is started, the pump body and the water suction pipe are required to be vacuum, the bottom valve in the water filter arranged at the tail end of the water suction pipe is a one-way valve, and when water is filled into the pump or the water pump stops running, the bottom valve is closed, so that the water filled into the pump can fill the pump body cavity and the water suction pipe without leakage. When the pump is started, the water in the pump cavity is discharged to form vacuum, and the water in the suction well pushes the valve core of the bottom valve open under the action of atmospheric pressure and is pressed into the inlet of the impeller. Thus, water is continuously sucked and discharged.

However, the water diversion device has the following problems: if sundries enter the water filter, the bottom valve cannot be tightly sealed, or the quality of the bottom valve is poor, the running water pump cannot pump water, the water pump is difficult to start after being stopped, the water pump cannot be normally started, and circulating water needs to be emptied and replaced by a new water pump bottom valve when serious, so that water resources are wasted; secondly, because the corrosion of the industrial circulating water is heavy, the bottom valve is easy to damage, and the working condition is bad and the labor intensity is high during the maintenance and replacement work of the bottom valve; the bottom valve arranged in the water filter on the water suction pipeline of the centrifugal water pump not only increases the pipeline resistance, increases the energy consumption, reduces the efficiency of the water pump, but also reduces the water suction height of the water pump.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.

According to an aspect of the present application, there is provided a vacuum priming device, including:

the vacuum box is used for providing a closed cavity;

the water suction pipe is communicated with the vacuum box and is used for sucking the water at the low position into the vacuum box at the high position;

the water outlet pipe is used for connecting the vacuum box and the water pump, and a water replenishing valve is arranged on a pipeline of the water outlet pipe; and

and the exhaust valve is arranged at the top of the vacuum box and used for exhausting the air in the vacuum box.

Optionally, a drain valve for draining the dirt in the vacuum box is arranged at the bottom of the vacuum box.

Optionally, a vacuum gauge is arranged at the top of the vacuum box and used for displaying the vacuum degree in the vacuum box.

Optionally, a transparent water level display surface is arranged on the outer surface of the vacuum box and used for displaying the water level in the vacuum box.

Optionally, one end of the water suction pipe, which is far away from the vacuum box, is provided with a filter screen for preventing impurities from being sucked into the water suction pipe.

Optionally, the end of the suction pipe remote from the vacuum box extends into a suction well below the water surface.

The vacuum water diversion device has the working principle that when the water pump operates, water in the vacuum box is firstly sucked, the water in the vacuum box is discharged in a short time, a certain vacuum is formed in the vacuum box, and the water in the water suction well enters the vacuum box body through the water suction pipe under the action of the external atmospheric pressure, so that the normal water drainage of the water pump is ensured; if the water injection flow is large enough in the process of injecting water into the vacuum box, most of the air in the water suction pipe is also discharged, so that the vacuum degree of the pump body, the vacuum box body and the water suction pipe is better ensured, the water in the water suction well is pressed into the vacuum box and an impeller of the pump under the action of atmospheric pressure, and the rotating impeller continuously sucks and discharges the water.

The application discloses vacuum diversion device, vacuum water tank install on the well, and personnel need not just can overhaul the processing to the pit. The power-saving effect is ideal, the popularization practicability is strong, and the water supply and drainage device can be widely applied to places where centrifugal water pumps are applied to water supply and drainage.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic view of a prior art priming device;

fig. 2 is a schematic structural diagram of a vacuum priming device according to an embodiment of the present application.

Reference numerals:

bottom valve-0; a vacuum box-1; a water outlet pipe-2; a suction pipe-3; vacuum gauge-4; an exhaust valve-5; a water replenishing valve-6;

a blowdown valve-7; water level display surface-8; -9, the ground; water surface-10; a filter screen-11.

Detailed Description

Fig. 2 is a schematic structural diagram of a vacuum priming device according to an embodiment of the present application. Referring to fig. 2, the vacuum priming device is placed on the ground 9 and includes: a vacuum box 1, a water suction pipe 3, a water outlet pipe 2 and an exhaust valve 5. The vacuum box 1 is used for providing a closed cavity; the suction pipe 3 is communicated with the vacuum box 1 and is used for sucking water at a low position into the vacuum box 1 at a high position; the water outlet pipe 2 is used for connecting the vacuum box 1 and the water pump, and a water replenishing valve 6 is arranged on a pipeline of the water outlet pipe; the exhaust valve 5 is installed on the top of the vacuum box 1 and used for exhausting the air in the vacuum box 1. And a drain valve 7 for discharging impurities in the vacuum box 1 is arranged at the bottom of the vacuum box 1 and is used for cleaning impurities such as silts deposited due to long-time application. The top of the vacuum box 1 is provided with a vacuum meter 4 for displaying the vacuum degree in the vacuum box 1. The outer surface of the vacuum box 1 is provided with a transparent water level display surface 8 for displaying the water level in the vacuum box 1. One end of the water suction pipe 3, which is far away from the vacuum box 1, is provided with a filter screen 11, which is used for avoiding sucking impurities into the water suction pipe 3 and preventing impurities from entering the pump body to break down. The end of the suction pipe 3 far away from the vacuum box 1 extends into a suction well below the water surface 10.

The vacuum water diversion device has the working principle that when the water pump operates, water in the vacuum box 1 is firstly sucked, the water in the vacuum box 1 is discharged in a short time, a certain vacuum is formed in the vacuum box 1, and the water in the water suction well enters the vacuum box 1 through the water suction pipe 3 under the action of the external atmospheric pressure, so that the normal water drainage of the water pump is ensured; if the water injection flow is large enough in the process of injecting water into the vacuum box 1, most of the air in the suction pipe 3 is discharged, so that the vacuum degree of the pump body, the vacuum box 1 and the suction pipe 3 is better ensured, the water in the suction well is pressed into the vacuum box 1 and an impeller of the pump under the action of atmospheric pressure, and the rotating impeller continuously sucks and discharges the water.

The application discloses vacuum diversion device opens water replenishing valve 6 earlier when using, can form the malleation in the vacuum box 1, opens discharge valve 5 again, discharges the air in the vacuum box 1, just can guarantee that the water in the vacuum box 1 is filled up. In the process of multiple tests, after the vacuum box 1 is used, the box body still has a certain water level which is kept level with the outlet of the water suction pipe 3, and when the vacuum box 1 is replenished with water, the water level is not changed, even if the exhaust valve 5 is opened for exhausting, the air pressure in the box is equal to the atmosphere, and the water level is not obviously increased; therefore, the pressure of the suction pipe 3 can be judged to be smaller than that of the vacuum box 1, and the water supplemented by the vacuum box 1 can be sucked into the circulating water pool through the suction pipe 3.

Because the vacuum water tank has no moving valve, the resistance of a pipeline is reduced, the energy consumption is reduced, the efficiency of the water pump is improved, the water suction height of the water pump is increased relative to the bottom valve 0 (the vacuum degree of a water suction port of the water pump is reduced under the condition of the same water suction height, and the possibility of cavitation in operation is reduced), and because the components are static, the water pump cannot be started because the valve core is easy to damage due to frequent operation and the water leakage is caused by the abrasion of a sealing joint surface unlike the bottom valve 0.

Through actual measurement, a bottom valve 0 type water pump starting mode in the prior art is adopted, 3 water pumps are required to be started to meet the working requirement, and the electricity consumption is 55.5kw.h per hour; by adopting the vacuum water diversion method, the working requirement can be met by only starting 2 water pumps, the power consumption is 32.8kw.h per hour, and the power consumption is 22.7kw.h per hour. The power is saved by 544.8kw.h every day and by 163440kw.h every year.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A vacuum water diversion device is characterized by comprising:

the vacuum box is used for providing a closed cavity;

2. The vacuum water diversion device according to claim 1, wherein a drain valve for draining impurities in the vacuum box is arranged at the bottom of the vacuum box.

3. The vacuum water diversion device according to claim 1, wherein a vacuum gauge is arranged at the top of the vacuum box and used for displaying the vacuum degree in the vacuum box.

4. The vacuum water diversion device according to claim 1, wherein a transparent water level display surface is provided on an outer surface of the vacuum box for displaying a water level in the vacuum box.

5. The vacuum water diversion device according to claim 1, wherein a filter screen is arranged at one end of the suction pipe far away from the vacuum box, and is used for avoiding impurities from being sucked into the suction pipe.

6. The vacuum priming device of any one of claims 1 to 5, wherein an end of the syphon remote from the vacuum box extends into a syphon well below the water surface.