CN215170818U

CN215170818U - Automatic pump priming device of centrifugal pump

Info

Publication number: CN215170818U
Application number: CN202121023007.7U
Authority: CN
Inventors: 裴慧霞; 苗伟; 王盼盼; 周钦; 常润喜; 韩愈
Original assignee: Shanxi Lu'an Special Solvent Chemicals Co ltd
Current assignee: Shanxi Lu'an Special Solvent Chemicals Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-14
Anticipated expiration: 2031-05-13

Abstract

The utility model belongs to the technical field of centrifugal pumps, in particular to an automatic pump priming device of a centrifugal pump; the technical scheme is as follows: the pump comprises a pump body, a shockproof assembly and a pump filling assembly, wherein the shockproof assembly comprises a shock absorption annular seat, a plurality of shock absorption pads are uniformly distributed on the inner wall of the shock absorption annular seat, and the shock absorption pads are attached to the pump body; a fluid inlet is arranged on one side of the pump body, and a filtering component is arranged on the fluid inlet; the pump filling assembly comprises a liquid storage tank and a fluid tank, and the fluid tank is arranged above the liquid storage tank; the fluid tank is connected with the fluid storage tank through a drainage tube, the upper end of the drainage tube is lower than the liquid level in the fluid tank, the lower end of the drainage tube extends into the liquid level in the fluid storage tank, a liquid filling tube is arranged at the bottom of the fluid tank and is communicated with a fluid inlet of the pump body, an exhaust tube is arranged at the upper end of the fluid tank, and an exhaust valve is arranged on the exhaust tube; the utility model is used for the automatic pump priming of centrifugal pump can solve vibrations and the problem of pump body jam.

Description

Automatic pump priming device of centrifugal pump

Technical Field

The utility model belongs to the technical field of the centrifugal pump, concretely relates to automatic pump priming device of centrifugal pump.

Background

The pump filling operation is that before the centrifugal pump is started, the pump body and the suction pipeline are required to be filled with liquid, air in the pump body is exhausted, and the pump can be started to operate. And a sealed environment is formed in the pump by filling liquid, a certain vacuum is formed in the center of the impeller after the pump is started to pump the liquid, and the external liquid is pressed into the inlet of the pump by atmospheric pressure under the difference of internal pressure and external pressure to complete the liquid suction action.

The traditional pump priming device of the low-level water taking centrifugal pump can not finish the pump priming operation in a gravity water feeding mode, and the other mode adopts a pump priming mode of vacuumizing water diversion, namely, a vacuumizing device is additionally arranged at the outlet pipeline of the centrifugal pump; the vacuumizing device is started after the outlet pipeline valve of the centrifugal pump is closed, the liquid level in the inlet pipeline of the centrifugal pump rises by reducing the vacuum degree of the inlet pipeline of the centrifugal pump, automatic pump filling cannot be realized, a filter screen is not installed in the pump filling process, impurities flow into the pump body along with liquid in the pump filling process, the problem of pump body blockage easily occurs, and when the pump body works, the vibration of the pump body enables internal components to be loosened, so that the normal work of the pump body is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic pump priming device of centrifugal pump has overcome the in-process impurity of pump priming and has taken place not hard up and the unable problem of automatic pump priming along with the pump body jam, the component that appear in the liquid inflow pump body.

In order to solve the technical problem, the utility model discloses a technical scheme be: an automatic pump priming device of a centrifugal pump comprises a pump body, a shockproof assembly and a pump priming assembly, wherein the shockproof assembly is wrapped outside the pump body; the shockproof assembly comprises a shock absorption annular seat, a plurality of shock absorption pads are uniformly distributed on the inner wall of the shock absorption annular seat, the shock absorption pads are attached to the pump body, one end of the shock absorption annular seat is a hinged end, the other end of the shock absorption annular seat is an open end, two clamping lugs are arranged on the open end, and the two clamping lugs are connected through bolts;

a fluid inlet is arranged on one side of the pump body, a filtering assembly is arranged on the fluid inlet, and the filtering assembly is used for filtering impurities in the fluid;

the pump filling assembly comprises a liquid storage tank and a fluid tank, and the fluid tank is arranged above the liquid storage tank; the fluid jar passes through the drainage tube with the liquid storage pot and connects, the upper end of drainage tube is less than the inside liquid level of fluid jar, the lower extreme of drainage tube stretches into the inside liquid level of liquid storage pot, the bottom of fluid jar is provided with irritates the liquid pipe, irritate the fluid entry intercommunication of liquid pipe and the pump body, the fluid jar upper end is provided with blast pipe and fluid infusion mouth, be provided with discharge valve on the blast pipe.

The filter assembly comprises a filter screen covering the fluid inlet, a filter collecting tank is arranged at the lower end of the fluid inlet close to the filter screen, and the filter collecting tank is used for collecting impurities in the fluid.

The top of liquid storage pot is provided with the gas vent, the gas vent is used for making the air in the liquid storage pot and the outside air fusion of liquid storage pot, realizes the balance of air density.

And scale indicating lines are arranged on the outer walls of the fluid tank and the liquid storage tank.

And a control valve is arranged on the liquid filling pipe.

The filter collecting tank is detachably connected with the fluid inlet, a hanging lug is installed at the contact position of the fluid inlet and the filter collecting tank, a mounting groove is formed in the hanging lug, and a mounting ring matched with the mounting groove is arranged on the filter collecting tank.

The filter screen is mounted on the fluid inlet by bolts.

Compared with the prior art, the utility model beneficial effect who has is:

1. the utility model discloses an adopt filtering component, at the fluid entrance installation filter screen of the pump body, the effectual impurity that has blocked in the fluid gets into the pump body, has caused the problem of pump body jam to install the filter collecting vat at the lower extreme of fluid entry, make impurity under the separation get into the filter collecting vat, because of filter collecting vat and fluid entry for can dismantling the connection, the staff can wash the filter collecting vat according to the circumstances.

2. The utility model discloses an adopt the subassembly that takes precautions against earthquakes, at the subassembly that takes precautions against earthquakes of the outside parcel formula installation of the pump body, change the mode of the subassembly that takes precautions against earthquakes of installation on the base in the past, take precautions against earthquakes because of adopting outside parcel formula, can more effectually reduce the vibration range of the pump body, play a guard action to the inner member of the pump body, prevent the not hard up problem of component because of vibrations cause, reduce the maintenance number of times of the pump body.

3. The utility model discloses a pump priming subassembly reduces the air density in the fluid jar through the blast pipe, makes it form negative pressure state, because of installing the gas vent in the top of liquid storage pot, opens the gas vent and makes the inside air density of liquid storage pot the same rather than outside air density, because of the motion principle of high pressure to the low pressure, can realize the liquid storage pot to the automatic fluid infusion of fluid jar, makes the fluid jar accomplish the pump priming work to the pump body.

The utility model discloses an use flow does:

before the utility model is used, the filtering and collecting tank is firstly arranged at the lower end of the fluid inlet, the filter screen is arranged at the fluid inlet, impurities in the fluid can be separated into the filtering and collecting tank, the operator opens the exhaust valve, then appropriate liquid supplementing is carried out to the fluid tank through the liquid supplementing port, after the liquid supplementing is finished, the exhaust pipe and the liquid supplementing port are closed, the liquid filling pipe is opened to carry out the pump filling work, the air density in the fluid tank is reduced due to the descending of the fluid in the fluid tank, negative pressure is formed, the exhaust port on the liquid storage tank is opened, the air density in the liquid storage tank is enabled to be the same as the air density outside, the automatic liquid supplementing of the liquid storage tank to the fluid tank can be realized due to the motion principle that the high pressure is reduced, the pump filling work is finished, the internal components are loosened due to the vibration of the pump body in the pump filling process, the vibration amplitude of the pump body is reduced by adopting the shockproof assembly, ensuring the normal work of the device.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the shock assembly and filter assembly of the present invention;

FIG. 3 is an enlarged view of FIG. 1A according to the present invention;

FIG. 4 is a schematic structural view of a fluid tank of the present invention;

fig. 5 is a schematic view of the filter collecting tank before installation.

In the figure: 1 is the pump body, 2 is shock attenuation annular seat, 3 is the shock pad, 4 is the hinged end, 5 is the open end, 6 is the cramp ear, 7 is fluid entry, 8 is the liquid storage pot, 9 is the fluid jar, 91 is the scale indicateing line, 10 is the drainage tube, 11 is the liquid filling pipe, 12 is the blast pipe, 13 is the filter screen, 14 is the filter collecting vat, 15 is the gas vent, 16 is the fluid infusion mouth, 17 is the hangers, 18 is the mounting groove, 19 is the collar.

Detailed Description

As shown in the figure, the automatic pump priming device of the centrifugal pump comprises a pump body 1, a shockproof assembly and a pump priming assembly, wherein the shockproof assembly is wrapped outside the pump body 1; the shockproof assembly comprises a shock absorption annular seat 2, a plurality of shock absorption pads 3 are uniformly distributed on the inner wall of the shock absorption annular seat 2, the shock absorption pads 3 are attached to the pump body 1, one end of the shock absorption annular seat 2 is a hinged end 4, the other end of the shock absorption annular seat 2 is an open end 5, two clamping lugs 6 are arranged on the open end 5, and the two clamping lugs 6 are connected through bolts;

a fluid inlet 7 is arranged on one side of the pump body 1, and a filtering assembly is arranged on the fluid inlet 7 and used for filtering impurities in the fluid;

the pump filling assembly comprises a liquid storage tank 8 and a fluid tank 9, and the fluid tank 9 is arranged above the liquid storage tank 8; fluid tank 9 and liquid storage pot 8 pass through drainage tube 10 and connect, the upper end of drainage tube 10 is less than the inside liquid level of fluid tank 8, the lower extreme of drainage tube 10 stretches into the inside liquid level of liquid storage pot 8, the bottom of fluid tank 9 is provided with irritates liquid pipe 11, irritate liquid pipe 11 and the fluid entry 7 intercommunication of the pump body 1, fluid tank 9 upper end is provided with blast pipe 12 and fluid infusion mouth 16, be provided with discharge valve on the blast pipe 12.

Preferably, the filter assembly comprises a filter screen 13 covering the fluid inlet 7, the fluid inlet 7 being provided with a filter collection tank 14 near a lower end of the filter screen 13, the filter collection tank 14 being adapted to collect impurities in the fluid.

Preferably, an air outlet 15 is arranged above the liquid storage tank 8, and the air outlet 15 is used for fusing air in the liquid storage tank 8 with air outside the liquid storage tank 8 to realize balance of air density.

Preferably, the outer walls of fluid reservoir 9 and fluid reservoir 8 are provided with scale indicating lines 91.

Preferably, a control valve is arranged on the liquid filling pipe 11.

Preferably, the filtration and collection tank 14 is detachably connected to the fluid inlet 7, a hanging lug 17 is installed at a contact position of the fluid inlet 7 and the filtration and collection tank 14, an installation groove 18 is formed in the hanging lug 17, and an installation ring 19 matched with the installation groove 18 is arranged on the filtration and collection tank 14.

Preferably, the filter screen 13 is mounted on the fluid inlet 7 by bolts.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to these embodiments without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. The automatic pump priming device of the centrifugal pump is characterized by comprising a pump body (1), a shockproof assembly and a pump priming assembly, wherein the shockproof assembly is wrapped outside the pump body (1); the shockproof assembly comprises a shock absorption annular seat (2), a plurality of shock absorption pads (3) are uniformly distributed on the inner wall of the shock absorption annular seat (2), the shock absorption pads (3) are attached to the pump body (1), one end of the shock absorption annular seat (2) is a hinged end (4), the other end of the shock absorption annular seat (2) is an open end (5), two hooping lugs (6) are arranged on the open end (5), and the two hooping lugs (6) are connected through bolts;

a fluid inlet (7) is installed on one side of the pump body (1), a filtering assembly is arranged on the fluid inlet (7), and the filtering assembly is used for filtering impurities in fluid;

the pump filling assembly comprises a liquid storage tank (8) and a fluid tank (9), and the fluid tank (9) is arranged above the liquid storage tank (8); fluid tank (9) and liquid storage pot (8) are connected through drainage tube (10), the upper end of drainage tube (10) is less than the inside liquid level of fluid tank (9), the lower extreme of drainage tube (10) stretches into the inside liquid level of liquid storage pot (8), the bottom of fluid tank (9) is provided with irritates liquid pipe (11), irritate liquid pipe (11) and fluid inlet (7) the intercommunication of the pump body (1), fluid tank (9) upper end is provided with blast pipe (12) and fluid infusion mouth (16), be provided with discharge valve on blast pipe (12).

2. A centrifugal pump automatic pump priming apparatus according to claim 1, wherein said filter assembly comprises a filter screen (13) overlying the fluid inlet (7), said fluid inlet (7) being provided with a filter collection tank (14) adjacent a lower end of the filter screen (13), said filter collection tank (14) being adapted to collect impurities in the fluid.

3. The automatic pump priming device of a centrifugal pump according to claim 2, characterized in that an air outlet (15) is arranged above the liquid storage tank (8), and the air outlet (15) is used for fusing air in the liquid storage tank (8) with air outside the liquid storage tank (8) to realize the balance of air density.

4. A centrifugal pump automatic pump priming device according to claim 2 or 3, characterized in that the outer walls of the fluid tank (9) and the fluid reservoir (8) are provided with scale indicating lines (91).

5. A centrifugal pump automatic pump priming device according to claim 3 or 4, characterized in that the priming pipe (11) is provided with a control valve.

6. The automatic pump priming device of a centrifugal pump according to claim 2, wherein the filtering and collecting tank (14) is detachably connected with the fluid inlet (7), a hanging lug (17) is installed at the contact position of the fluid inlet (7) and the filtering and collecting tank (14), an installation groove (18) is arranged on the hanging lug (17), and an installation ring (19) matched with the installation groove (18) is arranged on the filtering and collecting tank (14).