CN212003615U - Double-suction type impeller sewage pump - Google Patents

Abstract

The utility model discloses a double suction type impeller sewage pump, which comprises a double suction pump body, wherein the double suction pump body comprises a feed inlet and a discharge outlet, a supercharging mechanism is fixed on the discharge outlet, the supercharging mechanism comprises a water pipe, a supercharging pipe is arranged on the water pipe, the supercharging pipe is communicated with the water pipe, the supercharging pipe is perpendicular to the water pipe, one end of the supercharging pipe far away from the water pipe is provided with a cylinder, one end of the supercharging pipe near the water pipe is provided with a push plate, the piston end of the cylinder is fixedly connected with the push plate, the push plate is in contact connection with the inner wall of the supercharging pipe, a through hole is arranged on the push plate, a compressed air one-way valve is arranged in the through hole of the push plate, an air source is arranged in the supercharging pipe, one end of the water pipe far away from the discharge outlet is communicated with a conical pipe, an exhaust valve is arranged between the conical pipe and the supercharging, the service life is prolonged.

Description

Double-suction type impeller sewage pump

Technical Field

The utility model relates to a sewage pump equipment manufacture field especially relates to a double suction formula impeller sewage pump.

Background

The double suction type impeller sewage pump belongs to one kind of sewage pump, because it has characteristics such as the lift is high, the flow is big, obtains the wide application in the sewage treatment process, and the impeller of this kind of pump type is formed by two impeller combinations back to back in fact, and the rivers that flow from the impeller converge in a spiral case, and double suction type impeller sewage pump has following some characteristics: the single-suction impeller with the same diameter works simultaneously, and the flow can be doubled under the same impeller outer diameter; the pump shell is horizontally opened, so that the inspection and the maintenance are convenient, and meanwhile, the inlet and the outlet of the double-suction pump are in the same direction and are vertical to the pump shaft, so that the arrangement and the installation of the pump and the water inlet and outlet pipes are facilitated; the impeller structure symmetry of double entry pump does not have the axial force, and the operation is more steady, nevertheless at the in-process that uses its treatment sewage, because chemical substance and impurity content are big in the sewage, soak the impeller for a long time and can make impeller surface produce corruption, wearing and tearing phenomenon, lead to the centrifugal force effect that the impeller provided to reduce for the water pressure of discharge sewage is not enough, has reduced the life of whole sewage pump, frequent inspection maintenance also very consuming time power.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a double suction formula impeller sewage pump to solve the problem that above-mentioned prior art exists, carry out the pressure boost to the impaired sewage pump of impeller, guarantee that the water pressure of sewage is sufficient, improve life.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a double suction type impeller sewage pump, which comprises a double suction pump body, wherein the double suction pump body comprises a feed inlet and a discharge outlet, a supercharging mechanism is fixed on the discharge outlet, the supercharging mechanism comprises a water pipe, a supercharging pipe is arranged on the water pipe, the supercharging pipe is communicated with the water pipe, the supercharging pipe is perpendicular to the water pipe, one end of the supercharging pipe, which is far away from the water pipe, is provided with a cylinder, one end of the supercharging pipe, which is close to the water pipe, is provided with a push plate, the piston end of the cylinder is fixedly connected with the push plate, the push plate is in contact connection with the inner wall of the supercharging pipe, a through hole is arranged on the push plate, a compressed air one-way valve is arranged in the through hole of the push plate, an air source is arranged in the supercharging pipe, one end of the water pipe, which is far away from the discharge outlet, the exhaust valve is installed on the water pipe.

Preferably, a connecting pipe is fixed on the discharge port, the connecting pipe is communicated with the water service pipe, the connecting pipe is perpendicular to the water service pipe, and the connecting pipe is parallel to the pressure increasing pipe.

Preferably, the air source is located between the push plate and the cylinder.

Preferably, the cylinder is fixed in the pressure increasing pipe.

Preferably, the water pipe is detachably connected with a water retaining ring at a position of the pressure increasing pipe, which is far away from the water pipe.

Preferably, the water service pipe is detachably connected with the wide surface of the conical pipe, and a pipeline connecting piece is fixed on the narrow surface of the conical pipe.

The utility model discloses a following technological effect: when the impeller is not damaged, the air cylinder is started to drive the push plate to be blocked at the pipe orifice at one end of the booster pipe, the booster pipe is inflated by the air source, so that water in the water pipe cannot enter the booster pipe, sewage is discharged to an external connecting pipeline along the water pipe, when the impeller is damaged, the water pressure in the water pipe is reduced, the tapered pipe is installed on the water pipe and communicated with the external connecting pipeline through the tapered pipe, the air cylinder is started to push the push plate to reciprocate along the booster pipe, the booster pipe is inflated by the air source, when the push plate is driven to retract by the air cylinder, air inflated by the air source enters the front end of the push plate through the compressed air one-way valve, so that pressure balance is ensured, the pressure in the water pipe is unchanged, when the push plate is driven to push forwards by the air cylinder, the water and the air are pushed into the water pipe together, so that the booster pipe is pressurized to reach the, consequently utilize the toper pipe by wide to narrow design, when guaranteeing that its sewage after pressure boost, exhaust passes through the toper pipe, the flow volume reduces, guarantees that pressure is unchangeable basically, has weak loss of pressure not to constitute the influence, the utility model discloses can carry out the pressure boost to the impaired sewage pump of impeller, guarantee that the water pressure of discharge sewage is sufficient, improve life, even if the impeller is impaired leads to pressure not enough also need not frequently to dismantle the maintenance, reduced maintenance labour cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a double-suction impeller sewage pump of the present invention;

fig. 2 is a schematic structural view of the pressurizing mechanism of the present invention;

wherein, 1 is the feed inlet, 2 is the discharge gate, 3 is the water service pipe, 4 is the pressure boost pipe, 5 is the cylinder, 6 is the push pedal, 7 is the compressed air check valve, 8 is the air supply, 9 is the conical duct, 10 is discharge valve, 11 is the connecting pipe, 12 is the manger plate circle, 13 is the pipe connection spare.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-2, the utility model provides a double suction type impeller sewage pump, including the double suction pump body, the double suction pump body is the two sewage pumps of S type unit, and pressure default is preferred 1MP, the double suction pump body includes feed inlet 1 and discharge gate 2, be fixed with booster mechanism on the discharge gate 2, booster mechanism includes water service pipe 3, be equipped with booster pipe 4 on the water service pipe 3, booster pipe 4 adopt high strength material to make, preferably alloy material, booster pipe 4 with water service pipe 3 communicates, booster pipe 4 is perpendicular to water service pipe 3, the one end that booster pipe 4 kept away from water service pipe 3 is equipped with cylinder 5, cylinder 5 fixes in booster pipe 4, booster pipe 4 keeps away from the mouth of pipe of water service pipe 3 department can dismantle and be connected with manger plate circle 12, manger plate circle 12 is used for sealed booster pipe 12, during maintenance, the detachable water retaining ring 12 is used for checking the damaged condition of the structure in the pressure increasing pipe 4, one end of the pressure increasing pipe 4, which is close to the water through pipe 3, is provided with a push plate 6, the piston end of the air cylinder 5 is fixedly connected with the push plate 6, the air cylinder 5 drives the push plate 6 to move back and forth in the pressure increasing pipe 4, the push plate 6 is tightly attached to the inner wall of the pressure increasing pipe 4, gaps are reduced as much as possible, otherwise, more air needs to be introduced into the pressure increasing pipe 4 through an air source 8, a through hole is formed in the push plate 6, a compressed air one-way valve 7 is installed in the through hole of the push plate 6, an air source 8 is installed in the pressure increasing pipe 4, the air source 8 is used for introducing air into the pressure increasing pipe 4 for pressurization, the air source 8 is positioned between the push plate 6 and the air cylinder 5, the air source 8 is only communicated, the water service pipe 3 is detachably connected with the wide surface of the conical pipe 9, a pipeline connecting piece 13 is fixed on the narrow surface of the conical pipe 9, when an impeller in the double-suction pump body 1 is damaged, the conical pipe 9 is installed on the water service pipe 3 in the above mode, an external pipeline (not shown in the figure) is communicated through the pipeline connecting piece 13, the aperture of the external pipeline is the same as that of the narrow surface of the conical pipe 9, an exhaust valve 10, preferably a marble exhaust valve, is arranged between the conical pipe 9 and the booster pipe 4, the exhaust valve 10 is used for exhausting air in the water service pipe 3, the structure of the pipe is prevented from being damaged due to overlarge pressure, and the exhaust valve 10 is installed on the water service pipe 3.

According to a further optimized scheme, a connecting pipe 11 is fixed on the discharge port 2, the connecting pipe 11 is communicated with the water through pipe 3, the connecting pipe 11 is perpendicular to the water through pipe 3, the connecting pipe 11 is parallel to the pressure increasing pipe 4, and sewage discharged from the discharge port 2 is transmitted into the water through pipe 3 through the connecting pipe 11.

The utility model discloses a theory of operation: when an impeller (not shown in the figure) in the double-suction pump body 1 is not damaged, a conical pipe 9 is not required to be installed, the water pipe 3 is directly communicated with an external connecting pipeline, the air cylinder 5 is opened to drive the push plate 6 to be blocked at a pipe orifice of the pressurizing pipe 4 close to one end of the water pipe 3, the pressurizing pipe 4 is inflated through the air source 8, so that the air pressure in the pressurizing pipe 4 is the same as the water pressure in the water pipe 3, the water in the water pipe 3 is ensured not to enter the pressurizing pipe 4 through a gap between the push plate 6 and the pressurizing pipe 4, sewage is discharged to the external connecting pipeline along the water pipe 3, when the impeller is damaged, the water pressure in the water pipe 3 is reduced, the conical pipe is installed on the water pipe 3 and is communicated with the external connecting pipeline through the narrow surface of the conical pipe 9, the pipe diameter of the external connecting pipeline is selected to be the same as the pipe diameter of the narrow surface of the conical pipe 9, the air cylinder 5 is opened through an external, the pressurizing pipe 4 is inflated by the air source 8, when the push plate 6 is driven to retract by the air cylinder 5, the air inflated by the air source 8 enters the front end of the push plate 6 through the compressed air one-way valve 7, which is equivalent to the situation that the air at the front end of the push plate 6 extrudes the sewage in the water pipe 3 to ensure pressure balance, so that the pressure in the water pipe 3 is unchanged, when the push plate 6 is driven by the air cylinder 5 to push forward, the water and the air at the front end of the push plate 6 are pushed into the water pipe 3 together, so that the water pipe 3 is pressurized to reach a preset pressure value of the double suction pump body 1, for example, the preset pressure value of the double suction pump body 1 is 1MP, the normal water pressure in the water pipe 3 is also 1MP, the impeller is damaged, so that the water pressure is reduced to 0.5MP, when the push plate 6 retracts, the water pressure in the water pipe 3 is still 0.5MP, when the water and the air are pushed forward by the push plate 6, the pressure, the gas is discharged through the exhaust valve 10, and the pressure begins to be reduced, so that the design that the tapered pipe is from wide to narrow is utilized to ensure that the flow volume of the sewage after pressurization and exhaust passes through the tapered pipe 9 is reduced, the pressure is basically unchanged, weak pressure loss is possible but not influenced, and the closer the exhaust valve 10 is to the tapered pipe 9, the smaller the weak pressure loss is.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so 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.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims (6)

1. The utility model provides a double suction formula impeller sewage pump, includes the double suction pump body, the double suction pump body includes feed inlet (1) and discharge gate (2), its characterized in that: be fixed with booster mechanism on discharge gate (2), booster mechanism includes water service pipe (3), be equipped with pressure boost pipe (4) on water service pipe (3), pressure boost pipe (4) with water service pipe (3) intercommunication, pressure boost pipe (4) perpendicular to water service pipe (3), the one end that water service pipe (3) were kept away from in pressure boost pipe (4) is equipped with cylinder (5), pressure boost pipe (4) are close to the one end of water service pipe (3) is equipped with push pedal (6), the piston end of cylinder (5) with push pedal (6) fixed connection, push pedal (6) with the inner wall contact of pressure boost pipe (4) is connected, the through-hole has been seted up on push pedal (6), install compressed air check valve (7) in the through-hole of push pedal (6), install air supply (8) in pressure boost pipe (4), water service pipe (3) are kept away from the one end of discharge gate (2) can be dismantled and be connected with conical tube (9), an exhaust valve (10) is arranged between the conical pipe (9) and the pressure increasing pipe (4), and the exhaust valve (10) is installed on the water passing pipe (3).

2. The double-suction impeller sewage pump of claim 1, further comprising: and a connecting pipe (11) is fixed on the discharge hole (2), the connecting pipe (11) is communicated with the water through pipe (3), the connecting pipe (11) is perpendicular to the water through pipe (3), and the connecting pipe (11) is parallel to the pressure increasing pipe (4).

3. The double-suction impeller sewage pump of claim 1, further comprising: the air source (8) is positioned between the push plate (6) and the air cylinder (5).

4. The double-suction impeller sewage pump of claim 1, further comprising: the cylinder (5) is fixed in the pressure increasing pipe (4).

5. The double-suction impeller sewage pump of claim 1, further comprising: the water pipe (3) is detachably connected with a water retaining ring (12) at the position of the pressure increasing pipe (4) far away from the pipe orifice.

6. The double-suction impeller sewage pump of claim 1, further comprising: the water service pipe (3) is detachably connected with the wide surface of the conical pipe (9), and a pipeline connecting piece (13) is fixed on the narrow surface of the conical pipe (9).

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