CN219993945U

CN219993945U - Auxiliary device for starting centrifugal pump

Info

Publication number: CN219993945U
Application number: CN202320641623.1U
Authority: CN
Inventors: 刘自念; 陈龙; 代兴跃; 李治凯; 李学良; 谷志坤; 宋来军; 崔庆发
Original assignee: Yiliang Chihong Mining Industry Co ltd
Current assignee: Yiliang Chihong Mining Industry Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-11-10
Anticipated expiration: 2033-03-28

Abstract

The utility model relates to a centrifugal pump starting auxiliary device, and belongs to the technical field of centrifugal pump equipment. The centrifugal pump water inlet extends to a water pool through a pipeline; the main drain pipe on be equipped with the drain pipe, be equipped with valve II on the drain pipe, the drain pipe end is equipped with the three-way pipe, two other ports of three-way pipe are connected with centrifugal pump's water filling port and water inlet through water injection pipe and wash pipe respectively. Drainage of the main drain pipe is led out through the drain pipe, then air in the centrifugal pump is discharged through the water injection pipe, the centrifugal pump is ensured to be started normally, the water inlet of the centrifugal pump is flushed through the flushing pipe, the blockage of the water inlet of the centrifugal pump is avoided, and meanwhile, flushing water flows back to the water tank along the pipeline, so that sludge at the inlet of the pipeline in the water tank is dispersed.

Description

Auxiliary device for starting centrifugal pump

Technical Field

The utility model belongs to the technical field of centrifugal pump equipment, and particularly relates to a centrifugal pump starting auxiliary device.

Background

The conventional underground drainage pipeline of the centrifugal pump is shown in fig. 2, the centrifugal pump is connected with the main drainage pipe and the water tank through pipelines respectively, the external vacuum pump is required to exhaust air in the pump body before the centrifugal pump is started, the control links are more, the conditions of insufficient vacuum pressure of the pump body, air leakage of the pipelines and the like easily occur, the centrifugal pump cannot normally feed water, and sludge at the water inlet of the centrifugal pump is accumulated, so that the centrifugal pump is difficult to start.

Disclosure of Invention

In order to solve the problems, the utility model provides a centrifugal pump starting auxiliary device. The auxiliary centrifugal pump is started, so that the auxiliary centrifugal pump can quickly enter normal operation for filling.

In order to achieve the above purpose, the utility model is implemented according to the following technical scheme:

the centrifugal pump starting auxiliary device comprises a main drain pipe 1 and a centrifugal pump 2, wherein a water outlet of the centrifugal pump 2 is connected with the main drain pipe 1 through a connecting pipeline, a valve I3 is arranged on the connecting pipeline, and a water inlet of the centrifugal pump 2 extends to a water pool through the pipeline; the main drain pipe 1 on be equipped with drain pipe 4, be equipped with valve II 5 on the drain pipe 4, drain pipe 4 end is equipped with three-way pipe 6, two other ports of three-way pipe 6 are connected with centrifugal pump 2's water filling port and water inlet through water injection pipe 8 and wash pipe 7 respectively.

Preferably, the tee 6 is a reducing tee.

Preferably, the outlet flow direction of the flushing pipe 7 forms an included angle of 30-60 degrees with the inlet flow direction of the centrifugal pump 2.

The utility model has the beneficial effects that:

according to the utility model, the drainage of the main drainage pipe is led out through the drainage pipe, and then the drainage pipe is filled into the centrifugal pump through the water filling pipe 8 to drain air in the centrifugal pump, so that the centrifugal pump can be started normally, the water inlet of the centrifugal pump is flushed through the flushing pipe 7, the blockage of the water inlet of the centrifugal pump is avoided, and meanwhile, flushing water can flow back to the water tank along the pipeline, so that sludge at the inlet of the pipeline in the water tank is flushed, the starting load of the centrifugal pump is effectively reduced, and the centrifugal pump can be started normally.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a pipeline according to the present utility model;

FIG. 2 is a prior art centrifugal pump piping diagram;

FIG. 3 is a schematic view of the flush tube installation of the present utility model;

in the figure, 1, a main drain pipe; 2. a centrifugal pump; 3. a valve I; 4. a water drain pipe; 5. a valve II; 6. a three-way pipe; 7. a flushing pipe; 8. and a water injection pipe.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.

The utility model provides a centrifugal pump 2 starts auxiliary device, includes main drain pipe 1, centrifugal pump 2 delivery port be connected with main drain pipe 1 through connecting tube, be equipped with valve I3 on the connecting tube, centrifugal pump 2 water inlet passes through the pipeline and extends to the pond, centrifugal pump 2 is connected with external power source, many parallelly connected uses during the use, starts in good time as required displacement needs, valve I3 opens or closes according to the start-up condition of centrifugal pump 2, main drain pipe 1 is the main drain pipe in mine tunnel, is the pipeline of phi 325, long-term existence drainage.

Be equipped with drain pipe 4 on the main drain pipe 1, drain pipe 4 adopts the pipeline of phi 50, be equipped with valve II 5 on the drain pipe 4, drain pipe 4 end is equipped with three-way pipe 6, the other two ports of three-way pipe 6 are connected with centrifugal pump 2's water filling port and water inlet through water injection pipe 8 and wash pipe 7 respectively, before centrifugal pump 2 starts, open valve II 5, draw forth in with main drain pipe 1, pour into centrifugal pump 2 through water injection pipe 8, discharge centrifugal pump 2 internal air, ensure centrifugal pump 2 can normally start, wash centrifugal pump 2's water inlet through wash pipe 7, avoid centrifugal pump 2's water inlet to block up, simultaneously, the wash water can be followed the pipeline and flow back to the pond, thereby wash away the silt of pipeline entrance in the pond, effectively reduce centrifugal pump 2's start-up load, effectively ensure that centrifugal pump 2 can normally start.

Preferably, the tee 6 adopts the reducing tee, and the one end of phi 50 is connected with the water inlet of the centrifugal pump 2 through the pipeline to great washing flow washes the water inlet of the centrifugal pump 2 and the inlet of the connecting water pool pipeline, ensures the smoothness of the pipeline of the water absorbing end of the centrifugal pump 2, and the one end of phi 20 is connected with the water injection port of the centrifugal pump 2 through the pipeline, ensures that the washing time and the water injection time distribution are more reasonable, and improves the starting efficiency of the centrifugal pump 2.

Preferably, the outlet water flow direction of the flushing pipe 7 and the inlet water flow direction of the centrifugal pump 2 form an included angle of 30-60 degrees, so that flushing water can be effectively ensured to flush the water inlet of the centrifugal pump 2, meanwhile, when the centrifugal pump is started initially, flushing water can assist the centrifugal pump 2 to rapidly discharge air in a pipeline from the water inlet to a pool section, the centrifugal pump 2 can rapidly run stably, and flushing water cannot be opposite to inlet water of the centrifugal pump 2 when the centrifugal pump 2 runs normally.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the utility model, and that, although the utility model has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims; the size of the drawing is irrelevant to the specific real object, and the real object size can be changed arbitrarily.

Claims

1. The centrifugal pump starting auxiliary device comprises a main drain pipe (1) and a centrifugal pump (2), wherein a water outlet of the centrifugal pump (2) is connected with the main drain pipe (1) through a connecting pipeline, a valve I (3) is arranged on the connecting pipeline, and a water inlet of the centrifugal pump (2) extends to a water tank through a pipeline; the method is characterized in that: the novel centrifugal pump is characterized in that a water discharge pipe (4) is arranged on the main water discharge pipe (1), a valve II (5) is arranged on the water discharge pipe (4), a three-way pipe (6) is arranged at the tail end of the water discharge pipe (4), and the other two ports of the three-way pipe (6) are connected with a water inlet and a water inlet of the centrifugal pump (2) through a water injection pipe (8) and a flushing pipe (7) respectively.

2. A centrifugal pump start-up assistance device according to claim 1, wherein: the tee pipe (6) adopts a reducing tee.

3. A centrifugal pump start-up assistance device according to claim 2, characterized in that: the outlet flow direction of the flushing pipe (7) forms an included angle of 30-60 degrees with the inlet flow direction of the centrifugal pump (2).