CN216788735U

CN216788735U - Test connecting device suitable for large centrifugal pump

Info

Publication number: CN216788735U
Application number: CN202220138451.1U
Authority: CN
Inventors: 刘九伟
Original assignee: Liaoning Tongda Pump Motor Manufacturing Co ltd
Current assignee: Liaoning Tongda Pump Motor Manufacturing Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-06-21
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to the field of centrifugal pump tests, in particular to a test connecting device suitable for a large centrifugal pump. The test tube comprises a test tube and a hollow rotating disc, wherein the middle position of the upper end surface of the rotating disc is rotatably connected with a tube opening of the test tube, the interior of the rotating disc is communicated with the test tube, a plurality of connecting tubes with different diameters are uniformly distributed on the lower side surface of the rotating disc, the connecting tubes are communicated with the interior of the rotating disc, and each connecting tube is provided with a valve; the utility model adopts the rotating disc structure to replace a flange connecting structure between the reducer pipe and the test pipe, namely, the reducer pipe and the test pipe do not need to be connected during the experiment, and only the water outlet of the centrifugal pump is connected with the corresponding connecting pipe, so that the connecting efficiency is improved; in addition, the lower side face of the rotating disc is communicated with connecting pipes in different sizes, and the connecting pipes matched with the sizes of the water outlets of the centrifugal pumps can be connected to corresponding positions only by rotating the connecting pipes in different sizes, so that the connecting efficiency can be further improved.

Description

Test connecting device suitable for large centrifugal pump

Technical Field

The utility model relates to the field of centrifugal pump tests, in particular to a test connecting device suitable for a large centrifugal pump.

Background

The centrifugal pump is mechanical equipment for conveying liquid or pressurizing liquid, and is widely applied to industries such as water supply, mines, metallurgy and the like.

In actual production, the sizes of centrifugal pumps are different and correspondingly the diameters of water outlets of the centrifugal pumps are different, so that when a test pipe is connected with the water outlet of the centrifugal pump, a reducer pipe is needed to be used for connection, for the centrifugal pump with the larger size, the size of the reducer pipe used for connection is larger, the weight is correspondingly heavier, the carrying and installation of the reducer pipe are difficult, and in addition, the heavier weight also causes the flange hole alignment difficulty between a mounting flange at one end of the reducer pipe and a mounting flange at the water outlet of the centrifugal pump and between a mounting flange at the other end of the reducer pipe and a mounting flange on the test pipe in the connection process of the reducer pipe.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, and provides a test connecting device which saves the carrying and alignment fine adjustment of a large centrifugal pump and is suitable for the large centrifugal pump.

The utility model solves the problems and adopts the technical scheme that:

the utility model provides a test connection device suitable for large-scale centrifugal pump, includes the test tube, still includes hollow rolling disc, and the middle part position of rolling disc up end rotates with the mouth of pipe of test tube to be connected, the inside and test tube intercommunication of rolling disc, and the downside equipartition of rolling disc has the connecting pipe of a plurality of different diameters, and connecting pipe and the inside intercommunication of rolling disc all are provided with the valve on every connecting pipe.

Compared with the prior art, the utility model adopting the technical scheme has the outstanding characteristics that:

the rotary disc structure is adopted to replace a flange connection structure between the reducer pipe and the test pipe, namely, the reducer pipe is not required to be connected with the test pipe during the experiment, and only the water outlet of the centrifugal pump is required to be connected with the corresponding connecting pipe, so that the connection efficiency is improved; in addition, the downside intercommunication of rolling disc has the connecting pipe of unidimensional not, to the centrifugal pump of unidimensional not, only need rotate to relevant position with the connecting pipe of centrifugal pump delivery port size looks adaptation and can realize connecting, can further improve connection efficiency.

Preferably, the further technical scheme of the utility model is as follows:

the rotating disc is connected with the test tube through a rotary joint.

Drawings

Fig. 1 is a schematic front view of a test connection device according to an embodiment of the present invention;

FIG. 2 is a schematic bottom view of a test connection device according to an embodiment of the present invention;

labeled as: test tube 1, rolling disc 2, connecting pipe 3, valve 4, centrifugal pump 5, rotary joint 6, delivery port 501.

Detailed Description

The utility model will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the utility model.

Referring to fig. 1-2, a experimental connecting device suitable for multiple model centrifugal pumps, including test tube 1, rolling disc 2, connecting pipe 3, valve 4, centrifugal pump 5, rotary joint 6, the delivery port 501 of centrifugal pump, rolling disc 2 is hollow structure, the middle part position of rolling disc 2 up end rotates with test tube 1's mouth of pipe to be connected, it is concrete to realize rotating through rotary joint, connect 2 inside and test tube 1 intercommunications of rolling disc, the downside equipartition of rolling disc 2 has connecting pipe 3 of a plurality of different diameters, connecting

pipe

3 and 2 inside intercommunications of rolling disc, all be provided with valve 4 on every connecting pipe 3.

During the use, first select to place centrifugal pump 5 on the test bench, select the connecting pipe 3 that matches with it according to the delivery port 501 size of centrifugal pump 5, close valve 4 on the other connecting pipes 3, adjust rolling disc 2, make assorted connecting pipe 3 and relative with the delivery port 501 of centrifugal pump 5 and accomplish through the flange of connecting pipe 3 mouth of pipe department and the flange of delivery port 501 department and be connected, begin to test centrifugal pump 5's lift.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.

Claims

1. The utility model provides a experimental connecting device suitable for large-scale centrifugal pump, includes experimental pipe, its characterized in that: still include hollow rolling disc, the middle part position of rolling disc up end rotates with the mouth of pipe of test pipe to be connected, inside and the test pipe intercommunication of rolling disc, and the downside equipartition of rolling disc has the connecting pipe of a plurality of different diameters, and the connecting pipe all is provided with the valve with the inside intercommunication of rolling disc on every connecting pipe.

2. The experimental connection device suitable for a large centrifugal pump according to claim 1, characterized in that: the rotating disc is connected with the test tube through a rotary joint.