CN207961035U

CN207961035U - The overflow mechanism of vertical long pump for liquid salts

Info

Publication number: CN207961035U
Application number: CN201721902649.8U
Authority: CN
Inventors: 肖国华; 曹永�
Original assignee: SICHUAN ZIGONG INDUSTRIAL PUMP Co Ltd
Current assignee: SICHUAN ZIGONG INDUSTRIAL PUMP Co Ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2018-10-12
Anticipated expiration: 2027-12-29

Abstract

The utility model discloses a kind of overflow mechanisms of vertical long pump for liquid salts, the bearing being connected including catheter, with catheter, the leak-off pipe being coupled on bearing, it is characterized in that leak-off pipe is fixedly connected with longitudinally in the overflow pipe more than two-stage arranged, the inner end of overflow pipe is communicated with the endoporus of leak-off pipe, and the outer end of overflow pipe both passes through catheter.The high-temperature molten salt in leak-off pipe can be discharged in time for the utility model, avoid damage to the component of pump shaft upper end, and prevent from generating blocking when shutting down, and ensure the normal work of equipment for a long time.

Description

The overflow mechanism of vertical long pump for liquid salts

Technical field

The utility model is related to a kind of overflow mechanisms of vertical long pump for liquid salts.

Background technology

For vertical long pump for liquid salts as the important component in solar power system, the medium of conveying is high-temperature molten salt； Conveyance conduit of its diversion pipe as medium, protecting tube of the leak-off pipe as pump shaft；But in use, have a small amount of high temperature melting Salt enters leak-off pipe, cannot such as discharge it, and can damage the component of pump shaft upper end, and blocking is generated when shutting down.

Invention content

The purpose of this utility model is to be directed to deficiencies of the prior art, provides a kind of vertical long pump for liquid salts Overflow mechanism, the high-temperature molten salt in leak-off pipe can be discharged in time for it, avoid damage to the component of pump shaft upper end, and prevent from shutting down When generate blocking, for a long time ensure equipment normal work.

In order to achieve the above objectives, the overflow mechanism of the vertical long pump for liquid salts of the utility model, including catheter and drain Bearing that pipe is connected, the leak-off pipe being coupled on bearing, it is characterised in that leak-off pipe is fixedly connected with longitudinally in more than two-stage arranging The inner end of overflow pipe, overflow pipe is communicated with the endoporus of leak-off pipe, and the outer end of overflow pipe both passes through catheter.

In use, fused salt enters the upward channelling of leak-off pipe, it can be in time discharged by overflow pipe, avoid damage to the portion of pump shaft upper end Part ensures the normal work of equipment for a long time；

The overflow pipe is obliquely installed in low inside and high outside as a further improvement of the utility model,；Fused salt can be automatic The fused salt tank outside catheter is flowed into, blocking will not be generated when shutting down,；

In conclusion the high-temperature molten salt in leak-off pipe can be discharged in time for the utility model, pump shaft upper end is avoided damage to Component, and prevent from generating blocking when shutting down, ensure the normal work of equipment for a long time.

Description of the drawings

Fig. 1 is the front view of the utility model embodiment.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the overflow mechanism of the vertical long pump for liquid salts, including catheter 1, the bearing that is connected with catheter 1 2, the leak-off pipe 3 being coupled on bearing 1, it is being in longitudinally the overflow pipe 4 of two-stage arrangement, overflow pipe 4 that welding, which is fixedly connected with, on leak-off pipe 3 Inner end communicated with the endoporus of leak-off pipe 3, the outer end of overflow pipe 4 both passes through catheter 1, and overflow pipe 4 is in low inside and high outside It is obliquely installed；

In use, fused salt enters 3 upward channelling of leak-off pipe, can by overflow pipe 4 in time, automatically flow into it is molten outside catheter 1 Salt cellar, if first order overflow pipe 4 fails, second level overflow pipe can act, and avoids damage to the component of pump shaft upper end, protects for a long time The normal work for demonstrate,proving equipment will not generate blocking when shutting down.

Claims

1. a kind of overflow mechanism of vertical long pump for liquid salts, including catheter, be connected with catheter bearing, be coupled on bearing Leak-off pipe, it is characterised in that leak-off pipe is fixedly connected with longitudinally in the overflow pipe more than two-stage arranged, the inner end of overflow pipe with let out The endoporus of flow tube communicates, and the outer end of overflow pipe both passes through catheter.

2. the overflow mechanism of vertical long pump for liquid salts as described in claim 1, it is characterised in that the overflow pipe is in interior high outer Low is obliquely installed.