阅读说明：本技术 一种用于泵的真空自吸装置 (Vacuum self-suction device for pump ) 是由 周寿云 唐霜建 周斐 于 2020-12-09 设计创作，主要内容包括：本发明提供了一种用于泵的真空自吸装置,与离心泵连接,离心泵包括离心泵进口和离心泵出口和双轴伸驱动器,真空自吸装置包括底座、真空泵泵体、联轴器离合装置；联轴器离合装置包括回液管、液压阀、离合器杆、离合器,回液管连接在离心泵出口上,回液管与液压阀连接,液压阀连接离合器杆,离合器杆的末端连接离合器,离合器与联轴器连接,当离心泵出口的液体压力增高时,通过回液管启动液压阀,推动离合器杆,使得离合器偏离本来的位置,从而使联轴器与双轴伸驱动机相分离,真空泵泵体停止工作。本发明提供的用于泵的真空自吸装置,无需单独配套驱动机,安装简单,引水可靠,占用空间小,成本小。(The invention provides a vacuum self-priming device for a pump, which is connected with a centrifugal pump, wherein the centrifugal pump comprises a centrifugal pump inlet, a centrifugal pump outlet and a double-shaft extension driver, and the vacuum self-priming device comprises a base, a vacuum pump body and a coupling clutch device; the clutch device comprises a liquid return pipe, a hydraulic valve, a clutch lever and a clutch, wherein the liquid return pipe is connected to the outlet of the centrifugal pump, the liquid return pipe is connected with the hydraulic valve, the hydraulic valve is connected with the clutch lever, the tail end of the clutch lever is connected with the clutch, the clutch is connected with the coupler, when the liquid pressure at the outlet of the centrifugal pump is increased, the hydraulic valve is started through the liquid return pipe, the clutch lever is pushed, the clutch is deviated from the original position, the coupler and the double-shaft stretching machine are separated, and the vacuum pump body stops working. The vacuum self-suction device for the pump does not need a separate matched driving machine, is simple to install, reliable in water diversion, small in occupied space and low in cost.)

1. The utility model provides a vacuum is from inhaling device for pump, is connected with the centrifugal pump, and the centrifugal pump includes centrifugal pump import and centrifugal pump export (14) and biax stretch driver (6), the vacuum is from inhaling the device and is included base (5), the vacuum pump body (2), shaft coupling clutch, its characterized in that:

the vacuum pump body (2) is arranged on the base (5); the vacuum pump body (2) comprises a rotary vane impeller (16), an air inlet (4), an air outlet (3) and a bearing frame (15), the bearing frame (15) is connected with a rotating shaft of a double-shaft extension driver (6) through a coupler (7), the rotating shaft of the double-shaft extension driver (6) can drive a bearing frame middle shaft on the vacuum pump body (2) to rotate so as to drive the rotary vane impeller (16) to rotate, and the air inlet (4) of the vacuum pump body (2) is connected with an inlet of the centrifugal pump;

the clutch device of the coupler comprises a liquid return pipe (13), a hydraulic valve (10), a clutch lever (11), a clutch (9), wherein the liquid return pipe (13) is connected to the outlet (14) of the centrifugal pump, the liquid return pipe (13) is connected with the hydraulic valve (10), the clutch lever (11) is connected to the hydraulic valve (10), the clutch (9) is connected to the tail end of the clutch lever (11), the clutch (9) is connected to the coupler (7), when the liquid pressure of the outlet (14) of the centrifugal pump is increased, the hydraulic valve (10) is started through the liquid return pipe (13), the clutch lever (11) is pushed, the clutch (9) deviates from the original position, the coupler (7) and the double-shaft extension driving machine (6) are separated, and the vacuum pump body (2) stops working.

2. The vacuum self-priming apparatus for a pump of claim 1, wherein:

an umbrella-shaped coupler (7) is installed on a rotating shaft of the double-shaft extension driver (6), the coupler (7) connected with the bearing frame (15) is the umbrella-shaped coupler, and the two umbrella-shaped couplers are attached at a right angle and rub against each other.

3. The vacuum self-priming apparatus for a pump of claim 2, wherein:

the vacuum pump is characterized in that a steam-water separator (1) is further mounted on the vacuum pump body (2), the steam-water separator (1) sucks gas in a pipeline, the gas is discharged through an exhaust port (3) after being separated in the steam-water separator, and liquid flows back into the vacuum pump body (2) for cyclic utilization.

4. The vacuum self-priming apparatus for a pump of claim 3, wherein:

the hydraulic valve support is characterized by further comprising a hydraulic valve support (12), the hydraulic valve support (12) is installed on the base (5), and the hydraulic valve (10) is installed on the hydraulic valve support (12).

5. The vacuum self-priming apparatus for a pump of claim 4, wherein:

the double-shaft extension driver (6) is installed on the base (5).

6. The vacuum self-priming apparatus for a pump of claim 2, wherein:

one end of a rotating shaft of the double-shaft extension driver (6) is connected with a pump coupler (8), and an umbrella-shaped coupler (7) is installed at the other end of the rotating shaft.

7. The vacuum self-priming apparatus for a pump of claim 6, wherein:

and a pressure valve is arranged at an air inlet (4) of the vacuum pump body (2).

8. The vacuum self-priming apparatus for a pump of claim 7, wherein:

the hydraulic valve (10) is installed on the hydraulic valve support (12) in a clamping mode.

9. The vacuum self-priming apparatus for a pump of claim 8, wherein:

the centrifugal pump is a centrifugal pump with any structural form.

Technical Field

The invention belongs to the field of mechanical equipment, and particularly relates to a vacuum self-suction device for a pump.

Background

Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Centrifugal pumps are indispensable equipment in the field of industrial production and infrastructure.

Before the centrifugal pump is started, the pump shell and the water suction pipe are filled with liquid, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressing pipeline of the water pump through a flow channel of the volute-shaped pump shell.

The centrifugal pump products used at present are mostly non-self-priming pumps, and when the pump is installed in a downdraft mode, a bottom valve is required to be installed at the lowest end of a water inlet pipe, and water is poured to start the pump to supply water. Even a small amount of self-priming pumps are restricted by the technical level, and cannot meet the requirements of large flow and high lift.

Some applications form a vacuum water diversion mode through air exhaust, and the vacuum pumping mode needs to be provided with a set of vacuum system independently, so that the equipment investment is large, and the occupied area is large. In addition, the air jet suction pump is used for introducing water through air, and the water introducing mode needs to additionally provide a work drainage air source, an air pump is added, and the cost is increased.

Disclosure of Invention

The invention aims to provide a vacuum self-suction device for a pump, which is matched with a centrifugal pump, is simple to install, does not need a matched driving machine and can simply realize water diversion.

In order to solve the technical problem, the invention provides a vacuum self-priming device for a pump, which is connected with a centrifugal pump, wherein the centrifugal pump comprises a centrifugal pump inlet, a centrifugal pump outlet and a double-shaft extension driver, and the vacuum self-priming device comprises a base, a vacuum pump body and a coupling clutch device;

the vacuum pump body is arranged on the base; the vacuum pump body comprises a rotary vane impeller, an air inlet, an air outlet and a bearing frame, the bearing frame is connected with a rotating shaft of the double-shaft extension driver through a coupler, the rotating shaft of the double-shaft extension driver can drive a middle shaft of the bearing frame on the vacuum pump body to rotate so as to drive the rotary vane impeller to rotate, and the air inlet of the vacuum pump body is connected with the inlet of the centrifugal pump;

the shaft coupling clutch includes liquid return pipe, hydrovalve, clutch lever, clutch, liquid return pipe connects on the centrifugal pump export, liquid return pipe is connected with the hydrovalve, and the hydrovalve is connected with the clutch lever, the end-to-end connection clutch of clutch lever, the clutch with the coupling joint, when the liquid pressure that the centrifugal pump exported increases, starts the hydrovalve through liquid return pipe, promotes the clutch lever for the skew position originally of clutch, thereby make the shaft coupling and biax stretch the driver phase separation, the stop work of the vacuum pump body.

The double-shaft-extension-type driving device is characterized in that an umbrella-shaped coupler is installed on a rotating shaft of the double-shaft-extension driving device, the couplers connected with the bearing frame are umbrella-shaped couplers, and the two umbrella-shaped couplers are attached at right angles and rub against each other.

And after the gas in the pipeline is sucked by the steam-water separator, the gas is discharged through the exhaust port after being separated in the steam-water separator, and the liquid flows back into the vacuum pump body for cyclic utilization.

The hydraulic valve support is installed on the base, and the hydraulic valve is installed on the hydraulic valve support.

Wherein the biaxial stretching driver is installed on the base.

One end of a rotating shaft of the double-shaft extension driver is connected with the pump coupler, and the other end of the rotating shaft is provided with the umbrella-shaped coupler.

Wherein, the air inlet of the vacuum pump body is provided with a pressure valve.

The hydraulic valve is installed on the hydraulic valve support in a clamping mode.

Wherein, the centrifugal pump can be a centrifugal pump with any structure.

As some preferred modes, the vacuum self-priming device for the pump is connected with a centrifugal pump (not shown in the figure), the centrifugal pump comprises a centrifugal pump inlet, a centrifugal pump outlet and a double-shaft extension driver, an impeller of the centrifugal pump is driven by the double-shaft extension driver to rotate, and liquid enters from the centrifugal pump inlet, passes through the impeller and then flows out from the centrifugal pump outlet. However, in general, when the centrifugal pump draws water, vacuum cannot be formed in the inlet pipeline of the centrifugal pump and the centrifugal pump, and water drawing fails.

The vacuum self-absorption device comprises a base, a vacuum pump body, a coupling clutch device and a hydraulic valve bracket, wherein the vacuum pump body and a double-shaft extension driver are arranged on the base;

the vacuum pump body includes spinning disk impeller, gas vent, air inlet and bearing frame, the bearing frame is connected through shaft coupling and the pivot that the driver was stretched to the biax, and specific connected mode can be: the one end that the driver was stretched to the biax was connected with the centrifugal pump shaft coupling, realizes that the work of centrifugal pump is changeed, and it is umbrella-type shaft coupling that the biax is stretched to install the shaft coupling on the pivot other end of driver, the shaft coupling that the bearing bracket is connected is umbrella-type shaft coupling, and when the driver stop work was stretched to the biax, two umbrella-type shaft couplings are the right angle laminating and friction each other.

The vacuum pump body is also provided with a steam-water separator, the steam-water separator sucks gas in a pipeline, the gas is discharged through the gas inlet after being separated in the steam-water separator, and liquid flows back to the vacuum pump body for cyclic utilization, so that energy consumption is saved.

When the double-shaft extension driver works, the rotary vane impeller is driven to be placed, the vacuum pump body works to form negative pressure, so that air at the inlet of the centrifugal pump is pumped out, and water diversion of the centrifugal pump is realized;

the shaft coupling clutch includes liquid return pipe, hydrovalve, clutch lever, clutch, the hydrovalve can be installed through the mode of joint on the hydrovalve support, liquid return pipe connects on the centrifugal pump outlet, liquid return pipe is connected with the hydrovalve, and the clutch lever is connected to the hydrovalve, the end-to-end connection clutch of clutch lever, the clutch with the coupling joint, after the centrifugal pump realized the diversion, when the liquid pressure of the centrifugal pump outlet increased, started the hydrovalve through liquid return pipe, promoted the clutch lever for the clutch skew position originally, thereby made the shaft coupling and the biax stretch the separation of driving machine, the vacuum pump body stop work, energy saving consumed. The air inlet of the vacuum pump body is provided with a pressure valve, and after the centrifugal pump realizes water diversion, the vacuum pump body stops working, but liquid cannot flow backwards into the vacuum pump body.

Compared with the background technology, the vacuum self-suction device for the pump provided by the invention utilizes the air suction principle of a rotary vane vacuum pump, adopts the umbrella-shaped coupling to be connected with one end of a motor (a double-extension-shaft driving machine) matched with the pump, and does not need to be matched with a driving machine separately. The clutch device of the coupler comprises a clutch, a clutch rod and a hydraulic valve body, and forms an effective whole, the umbrella-shaped coupler connected with a bearing frame of a pump body of a centrifugal pump starting vacuum pump is jointed with the umbrella-shaped coupler connected with a double-shaft extension driver, when the double-shaft extension driver is started, the two umbrella-shaped couplers rub and rotate oppositely, the vacuum pump is used for pumping air in the centrifugal pump until the air in the pump is pumped completely, and the self-absorption function is realized. When the centrifugal pump is normally supplied with water, the water flow collected from the water outlet of the centrifugal pump enters the hydraulic valve to push the clutch lever, so that the two umbrella-shaped couplings are disengaged, the pump body of the vacuum pump stops working, and the energy consumption is saved.

The vacuum self-suction device for the pump is simple to install, reliable in water diversion, small in occupied space and low in cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a side view of a vacuum self-priming apparatus for a pump;

FIG. 2 is a top view of a vacuum self-priming device for a pump;

FIG. 3 is a schematic structural view of a clutch device of the coupling;

in the figure: the device comprises a steam-water separator 1, a vacuum pump body 2, an exhaust port 3, an air inlet 4, a base 5, a double-shaft extension driving machine 6, an umbrella-shaped coupler 7, a pump coupler 8, a clutch 9, a hydraulic valve 10, a clutch lever 11, a hydraulic valve support 12, a liquid return pipe 13, a centrifugal pump outlet 14, a bearing frame 15 and a rotary vane impeller 16.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" or "a plurality" means two or more unless specifically limited otherwise.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.

Example 1

As shown in fig. 1, 2 and 3, a vacuum self-priming device for a pump is connected with a centrifugal pump (not shown in the figure), the centrifugal pump comprises a centrifugal pump inlet, a centrifugal pump outlet 14 and a double-shaft extension driver 6, an impeller of the centrifugal pump is driven by the double-shaft extension driver 6 to rotate, liquid enters from the centrifugal pump inlet, passes through the impeller and then flows out from the centrifugal pump outlet 14. However, in general, when the centrifugal pump draws water, vacuum cannot be formed in the inlet pipeline of the centrifugal pump and the centrifugal pump, and water drawing fails.

The vacuum self-suction device comprises a base 5, a vacuum pump body 2 and a coupling clutch device, wherein the vacuum pump body 2 is arranged on the base 5;

the vacuum pump body includes rotor blade wheel 16, gas vent 3, air inlet 4 and bearing bracket 15, bearing bracket 15 is connected with the pivot that the driver 6 was stretched to the biax through shaft coupling 7, and when the pivot of driver 6 was stretched to the biax, shaft coupling 7 can drive the rotation of bearing bracket 15 axis on the vacuum pump body to it is rotatory to drive rotor blade wheel 16, the air inlet 4 of the vacuum pump body with the centrifugal pump import is connected, and the biax is stretched the driver 6 during operation, and it is rotatory to drive rotor blade wheel 16, and the work of the vacuum pump body forms the negative pressure, thereby evacuates the air of centrifugal pump import, realizes the diversion of centrifugal pump.

The shaft coupling clutch includes liquid return pipe 13, hydrovalve 10, clutch lever 11, clutch 9, liquid return pipe 13 is connected on the centrifugal pump outlet 14, liquid return pipe 13 is connected with hydrovalve 10, and clutch lever 11 is connected to hydrovalve 10, clutch lever 11's end-to-end connection clutch 9, clutch 9 with shaft coupling 7 connects, and after the centrifugal pump realized leading water, when centrifugal pump outlet 14's liquid pressure increased, through liquid return pipe 13 starting hydraulic valve, promotion clutch lever 11 for clutch 9 skew original position, thereby make shaft coupling 7 and biax stretch driving machine 6 separation, the vacuum pump body stop work, energy saving consumed the festival.

Example 2

As shown in fig. 1, 2 and 3, a vacuum self-priming device for a pump is connected with a centrifugal pump (not shown in the figure), the centrifugal pump comprises a centrifugal pump inlet, a centrifugal pump outlet 14 and a double-shaft extension driver 6, an impeller of the centrifugal pump is driven by the double-shaft extension driver 6 to rotate, liquid enters from the centrifugal pump inlet, passes through the impeller and then flows out from the centrifugal pump outlet 14. However, in general, when the centrifugal pump draws water, vacuum cannot be formed in the inlet pipeline of the centrifugal pump and the centrifugal pump, and water drawing fails.

The vacuum self-suction device comprises a base 5, a vacuum pump body 2 and a coupling clutch device, wherein the vacuum pump body 2 is arranged on the base 5;

the vacuum pump body includes spinning disk impeller 16, gas vent 3, air inlet 4 and bearing frame 15, bearing frame 15 is connected through shaft coupling 7 and the pivot of biax extension driver 6, and specific connected mode can be: the double-shaft-stretching driving device is characterized in that a coupler 7 is arranged on a rotating shaft of the double-shaft-stretching driving device 6 and is an umbrella-shaped coupler, the coupler 7 connected with the bearing frame 15 is an umbrella-shaped coupler, and when the double-shaft-stretching driving device 6 stops working, the two umbrella-shaped couplers are attached at right angles and rub against each other.

When the double-shaft extension driver 6 rotates a rotating shaft, the coupler 7 can drive a middle shaft of a bearing frame 15 on a vacuum pump body to rotate so as to drive a rotary vane impeller 16 to rotate, an air inlet 4 of the vacuum pump body is connected with an inlet of the centrifugal pump, when the double-shaft extension driver 6 works, the rotary vane impeller 16 is driven to rotate, and the vacuum pump body works to form negative pressure so as to evacuate air at the inlet of the centrifugal pump and realize water diversion of the centrifugal pump;

the shaft coupling clutch includes liquid return pipe 13, hydrovalve 10, clutch lever 11, clutch 9, liquid return pipe 13 is connected on the centrifugal pump outlet 14, liquid return pipe 13 is connected with hydrovalve 10, and clutch lever 11 is connected to hydrovalve 10, clutch lever 11's end-to-end connection clutch 9, clutch 9 with shaft coupling 7 connects, and after the centrifugal pump realized leading water, when centrifugal pump outlet 14's liquid pressure increased, through liquid return pipe 13 starting hydraulic valve, promotion clutch lever 11 for clutch 9 skew original position, thereby make shaft coupling 7 and biax stretch driving machine 6 separation, the vacuum pump body stop work, energy saving consumed the festival.

Example 3

As another embodiment, as shown in fig. 1, fig. 2 and fig. 3, a vacuum self-priming device for a pump is connected to a centrifugal pump (not shown in the drawings), the centrifugal pump includes a centrifugal pump inlet, a centrifugal pump outlet 14 and a dual-shaft extension driver 6, an impeller of the centrifugal pump is driven by the dual-shaft extension driver 6 to rotate, and liquid enters from the centrifugal pump inlet, passes through the impeller and then flows out from the centrifugal pump outlet 14. However, in general, when the centrifugal pump draws water, vacuum cannot be formed in the inlet pipeline of the centrifugal pump and the centrifugal pump, and water drawing fails.

The vacuum self-priming device comprises a base 5, a vacuum pump body 2, a coupling clutch device and a hydraulic valve bracket 12, wherein the vacuum pump body 2 and a double-shaft extension driver 6 are arranged on the base 5;

vacuum pump body 2 includes spinning disk impeller 16, gas vent 3, air inlet 4 and bearing frame 15, bearing frame 15 is connected through shaft coupling 7 and the pivot of biax extension driver 6, and specific connected mode can be: the one end that the pivot of driver 6 was stretched to the biax is connected with centrifugal pump shaft coupling 8, realizes that the work of centrifugal pump is changeed, and it is the umbrella-type shaft coupling that the biax is stretched and is installed shaft coupling 7 on the pivot other end of driver 6, shaft coupling 7 that bearing frame 15 is connected is the umbrella-type shaft coupling, and when the drive 6 stop work is stretched to the biax, two umbrella-type shaft couplings are the right angle laminating and the looks mutual friction.

The vacuum pump body 2 is also provided with a steam-water separator 1, the steam-water separator 1 sucks gas in a pipeline, after the gas is separated in the steam-water separator, the gas is discharged through the gas inlet 4, and liquid flows back into the vacuum pump body 2 for cyclic utilization, so that energy consumption is saved.

When the pivot of driver 6 is stretched to the biax, shaft coupling 7 can drive the rotation of bearing frame 15 axis on the vacuum pump body to it is rotatory to drive vane wheel 16, the air inlet 4 of the vacuum pump body with the centrifugal pump import is connected, and the biax is stretched driver 6 during operation, drives vane wheel 16 and rotates, and vacuum pump body work forms the negative pressure, thereby manages to find time the air of centrifugal pump import, realizes the diversion of centrifugal pump.

Shaft coupling clutch includes liquid return pipe 13, hydrovalve 10, clutch lever 11, clutch 9, hydrovalve 10 can install through the mode of joint on hydraulic valve support 12, liquid return pipe 13 is connected on centrifugal pump outlet 14, liquid return pipe 13 is connected with hydrovalve 10, and clutch lever 11 is connected to hydrovalve 10, clutch lever 11's end connection clutch 9, clutch 9 with shaft coupling 7 is connected, and after the centrifugal pump realized leading water, when centrifugal pump outlet 14's liquid pressure increased, start the hydrovalve through liquid return pipe 13, promote clutch lever 11 for clutch 9 skew position originally, thereby make shaft coupling 7 and biax stretch the separation of driving machine 6, the vacuum pump body stop work, energy saving consumption. The air inlet 4 of the vacuum pump body 2 is provided with a pressure valve, and after the centrifugal pump realizes water diversion, the vacuum pump body stops working, but liquid cannot flow backwards into the vacuum pump body.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.