CN217209325U

CN217209325U - Novel evaporator outlet header structure of SP boiler

Info

Publication number: CN217209325U
Application number: CN202220777257.8U
Authority: CN
Inventors: 刘志红
Original assignee: Gezhouba Shimen Special Cement Co ltd
Current assignee: Gezhouba Shimen Special Cement Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-16
Anticipated expiration: 2032-04-06

Abstract

The utility model relates to a SP boiler specifically discloses a novel evaporimeter export header structure of SP boiler, including four export headers, the steam outlet of four export headers is connected with two female pipes, has a blow off pipe in every female socle portion fixed connection and intercommunication, and the bottom welding of every export header has bottom open-ended taper to fight and this taper is fought inner cavity and is linked together with export header inner chamber, fights bottom fixed connection and intercommunication at every taper and has another blow off pipe, fixedly connected with second valve on this blow off pipe. The utility model discloses a keep two blowdown points on original two female pipes outside, still add the second blow off pipe bottom the export header, can effectively avoid piling up of precipitate and granulating slag in the export header, guarantee its heat exchange efficiency and quality of water.

Description

Novel evaporator outlet header structure of SP boiler

Technical Field

The utility model relates to a waste heat utilization technology field in the cement manufacture, concretely relates to novel evaporimeter export header structure of SP boiler.

Background

The SP boiler is a vertical boiler arranged on a kiln tail waste gas channel and used for absorbing waste heat of kiln tail waste gas, water fed by the SP boiler comes from a low-temperature economizer of the AQC boiler, and superheated steam is generated after heat is absorbed again and is sent to a steam turbine to do work and generate power. The SP boiler heating surface part comprises a superheater, a multi-stage evaporator and a first-stage economizer, wherein the evaporator mainly comprises an inlet and outlet header and a coiled pipe. In the prior art, four outlet headers 1 of four-stage evaporators are connected by adopting a main pipe, namely the outlet headers 1 of the four evaporators introduce saturated steam into a steam drum by using 2 main pipes 2, and each main pipe 2 is respectively provided with a drain outlet (namely a drain pipe 3), as shown in fig. 1. The structural design is very unfavorable for the sewage discharge of the outlet header 1, and along with the extension of the operation time, a large amount of sediments and water slag can be accumulated in the outlet header, so that the heat exchange efficiency and the water quality of the boiler are influenced.

Disclosure of Invention

The utility model aims at providing a structural design is reasonable and can effectively be with the novel export header structure of SP boiler of the interior precipitate of export header and the timely discharge boiler of grain sediment.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a novel evaporimeter export header structure of SP boiler, including four export headers, the steam outlet of four export headers is connected with two female pipes, bottom fixed connection and the intercommunication have a blow off pipe in every female pipe, the first valve of fixedly connected with on this blow off pipe, a serial communication port, it fights and this taper is fought inner chamber and is linked together with export header inner chamber to have bottom open-ended taper in the welding of the bottom of every export header, bottom fixed connection and intercommunication have another blow off pipe to fight at every taper, fixedly connected with second valve on this blow off pipe.

Furthermore, a rotating shaft is fixedly connected in each outlet header through a bearing and a bearing seat, a U-shaped frame is fixedly connected to the rotating shaft, a cleaning brush piece is fixedly connected to the bottom of the U-shaped frame, the free end of the cleaning brush piece is attached to the inner wall of the outlet header, and one end of the rotating shaft is fixedly connected with a servo motor fixed on the outer wall of the outlet header after extending out of the outlet header.

Compared with the prior art, the utility model discloses the beneficial effect who possesses is:

the utility model discloses a keep two blowdown points on original two female pipes outside, still add the second blow off pipe bottom the export header to through compiling sediment and the granulating slag in the export header in the taper fill, rethread second blow off pipe in time discharges, effectively avoids piling up of sediment and granulating slag in the export header, guarantees its heat exchange efficiency and quality of water.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the internal structure of a single outlet header of the present invention;

the cleaning device comprises a cleaning brush piece, an outlet header, a main pipe, a first drain pipe, a first valve, a conical hopper, a second drain pipe, a second valve, a rotating shaft, a U-shaped frame, a cleaning brush piece and a servo motor, wherein the cleaning brush piece comprises a main pipe 1, an outlet header, a main pipe 2, a main pipe 3, a first drain pipe 4, a first valve, a conical hopper 5, a second drain pipe 6, a second valve 7, a second valve 8, a rotating shaft 9, a U-shaped frame 10 and a cleaning brush piece 11.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings. The following is the most preferable scheme of the present invention, but it does not limit the protection scope of the present invention, and any equivalent or similar replacement without departing from the concept of the present invention should fall within the protection scope of the present invention. In addition, the terms "fixedly connected" and "connected" are all the prior art, and according to the circumstances, the conventional connection modes such as bolt fixing, threaded connection, flange connection and the like are adopted. And all parts not described in detail below should be performed as in the prior art.

As shown in figures 2-3, the novel evaporator outlet header structure of the SP boiler of the utility model comprises four outlet headers 1, the steam outlets of every two outlet headers 1 in the four outlet headers 1 are collected and connected to the same main pipe 2 through a tee joint in a conventional way, the four outlet headers 1 send superheated steam to a steam turbine to do work through two main pipes 2 in a conventional way, the bottom of each main pipe 2 is fixedly connected and communicated with a first sewage discharge pipe 3 which extends vertically downwards, a first valve 4 is fixedly connected on the first sewage draining pipe 3 according to a conventional mode, a conical hopper 5 with an opening at the bottom is welded at the bottom of each outlet header 1, the inner cavity of the conical hopper 5 is communicated with the inner cavity of the outlet header 1, the bottom of each conical hopper 5 is fixedly connected and communicated with a second sewage discharge pipe 6, and a second valve 7 is fixedly connected on the second sewage discharge pipe 6.

For can clearing up the impurity of export header inner wall adhesion, through the bearing in every export header 1, bearing frame fixedly connected with pivot 8, through bolt fixedly connected with U type frame 9 in pivot 8, through the brush piece 10 that cleans of bolt fixedly connected with rubber material in U type frame 9 bottom, clean brush piece 10 free end and export header 1 inner wall and laminate mutually, 8 one end of pivot stretch out the back from the export header and fix servo motor 11 welding fixed connection on export header 1 outer wall.

In the use, second blow off pipe 6 is opened to deposit and the grain slag accessible in the export header 1, carries out the periodic discharge, and in normal use, impurity that superheated steam carried etc. also can carry out the blowdown through the first blow off pipe on the female pipe. The structural design of this application, even along with the extension of operating time, a large amount of sediments and grain sediment can not be stored up yet to export header inside, can effectively guarantee the heat exchange efficiency and the quality of water of export header.

Claims

1. The utility model provides a novel evaporimeter export header structure of SP boiler, including four export headers, the steam outlet of four export headers is connected with two female pipes, bottom fixed connection and the intercommunication have a blow off pipe in every female pipe, the first valve of fixedly connected with on this blow off pipe, a serial communication port, it fights and this taper is fought inner chamber and is linked together with export header inner chamber to have bottom open-ended taper in the welding of the bottom of every export header, bottom fixed connection and intercommunication have another blow off pipe to fight at every taper, fixedly connected with second valve on this blow off pipe.

2. The outlet header structure of the SP boiler new evaporator as recited in claim 1, wherein a rotation shaft is rotatably connected in each outlet header, a U-shaped frame is fixedly connected to the rotation shaft, a cleaning brush is fixedly connected to the bottom of the U-shaped frame, the free end of the cleaning brush is attached to the inner wall of the outlet header, and one end of the rotation shaft is fixedly connected to a servo motor fixed to the outer wall of the outlet header after protruding from the outlet header.