A drainage flow guide device for facilitating maintenance of a centrifugal pump

Abstract

The utility model relates to a kind of drainage flow guide devices of centrifugal pump for facilitating overhaul, including first water outlet pipe and second water outlet pipe, the first water outlet pipe and second water outlet pipe are vertically arranged, and are connected with the shaft seal water receiving tray bottom of centrifugal pump two ends respectively;The second water outlet pipe is connected with third water outlet pipe by elbow;The third water outlet pipe is connected with first water outlet pipe by tee joint.The utility model exports the liquid in shaft seal water receiving tray by first water outlet pipe and second water outlet pipe, liquid in second water outlet pipe is introduced into first water outlet pipe by third water outlet pipe, and first water outlet pipe exports liquid, to avoid liquid in pump overflow.

Description

Technical Field

[0001] This utility model belongs to the technical field, and specifically relates to a drainage diversion device that facilitates the maintenance of centrifugal pumps. Background Technology

[0002] When overhauling a single-stage double-suction centrifugal pump, the pump's top cover needs to be removed, the packing glands on both sides of the pump body loosened, and the connecting nuts and locating pins between the top cover and the base removed. At this point, the liquid inside the pump will either drain from the threaded hole of the shaft seal drain pan into the pump base or overflow from the pump's edge to the ground, making cleaning difficult. Utility Model Content

[0003] The purpose of this utility model is to provide a drainage diversion device for convenient maintenance of centrifugal pumps, which allows the liquid inside the pump to be discharged after the packing glands on both sides of the pump body are loosened.

[0004] To achieve the above objectives, the present invention provides a drainage diversion device for convenient maintenance of a centrifugal pump, comprising a first outlet pipe and a second outlet pipe.

[0005] The first and second water outlet pipes are both vertically arranged and are respectively connected to the bottom of the shaft seal leakage collection pan at both ends of the centrifugal pump; the second water outlet pipe is connected to the third water outlet pipe through an elbow; the third water outlet pipe is connected to the first water outlet pipe through a tee.

[0006] Preferably, a pit is provided on the outside of the centrifugal pump; the bottom of the first outlet pipe extends into the pit.

[0007] Preferably, a liquid level sensor is installed in the pit to detect the liquid level in the pit. When the liquid level in the pit exceeds a certain height, the liquid in the pit is discharged by a sewage pump.

[0008] This utility model provides a drainage diversion device for convenient maintenance of centrifugal pumps, which has the following advantages compared with the prior art:

[0009] (1) The liquid in the shaft seal leakage collection plate is discharged through the first water outlet pipe and the second water outlet pipe. The liquid in the second water outlet pipe is fed into the first water outlet pipe through the third water outlet pipe. The first water outlet pipe discharges the liquid to prevent the liquid in the pump from overflowing.

[0010] (2) The design is simple and easy to use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the forward structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the side structure of this utility model; Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] like Figure 1 and 2 As shown, a drainage diversion device for facilitating the maintenance of a centrifugal pump includes a first outlet pipe 2 and a second outlet pipe 3.

[0015] The first outlet pipe 2 and the second outlet pipe 3 are both vertically arranged and are respectively connected to the bottom of the shaft seal leakage collection pan 11 at both ends of the centrifugal pump; the second outlet pipe 3 is connected to the third outlet pipe 4 through an elbow; the third outlet pipe 4 is connected to the first outlet pipe 2 through a tee. During maintenance, the packing glands on both sides of the centrifugal pump body are loosened, and the connecting nuts and positioning pins between the centrifugal pump top cover 12 and the base are removed. The liquid in the pump flows into the shaft seal leakage collection pan 11 at both ends of the centrifugal pump. The liquid in the shaft seal leakage collection pan 11 is discharged through the first outlet pipe 2 and the second outlet pipe 3. The liquid in the second outlet pipe 3 is fed into the first outlet pipe 2 through the third outlet pipe 4. The first outlet pipe 2 discharges the liquid to prevent the liquid in the pump from overflowing.

[0016] In this embodiment, a pit is provided outside the centrifugal pump; the bottom of the first outlet pipe 2 extends into the pit to guide the liquid in the centrifugal pump into the pit; a liquid level sensor is installed in the pit to detect the liquid level in the pit, and when the liquid level in the pit is higher than a certain height, the liquid in the pit is discharged by a sewage pump.

Claims

1. A drainage diversion device for convenient maintenance of a centrifugal pump, characterized in that, It includes the first water outlet pipe (2) and the second water outlet pipe (3). The first outlet pipe (2) and the second outlet pipe (3) are both vertically arranged and are respectively connected to the bottom of the shaft seal leakage collection pan (11) at both ends of the centrifugal pump; the second outlet pipe (3) is connected to the third outlet pipe (4) through an elbow; the third outlet pipe (4) is connected to the first outlet pipe (2) through a tee.

2. The drainage diversion device for convenient maintenance of centrifugal pumps according to claim 1, characterized in that, A pit is provided on the outside of the centrifugal pump; the bottom of the first outlet pipe (2) extends into the pit.

3. The drainage diversion device for convenient maintenance of centrifugal pumps according to claim 2, characterized in that, A liquid level sensor is installed in the pit to detect the liquid level. When the liquid level in the pit exceeds a certain height, the liquid in the pit is discharged by a sewage pump.

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