CN210291089U

CN210291089U - Connecting structure of drain pipe joint of lower header

Info

Publication number: CN210291089U
Application number: CN201920810628.6U
Authority: CN
Inventors: 陈潇
Original assignee: China Western Power Industrial Co Ltd
Current assignee: China Western Power Industrial Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-04-10
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a connecting structure of a drain pipe joint of a lower header, which comprises the lower header and the drain pipe joint which are connected with each other; the method is characterized in that: the drain pipe joint is positioned in the tangential direction of the inner circle of the lower header, and the lower end of the inner wall of the water inlet end of the drain pipe joint is flush with the bottom of the inner wall of the lower header; the utility model discloses it is less to occupy vertical space, can prevent that hydrophobic pipeline and flue gas pipeline from interfering mutually, and drainage in time can be arranged simultaneously.

Description

Connecting structure of drain pipe joint of lower header

Technical Field

The utility model relates to a lower header drain pipe joint connecting structure at the inlet of a boiler furnace.

Background

When the size of the boiler is small, the arrangement space is limited frequently, and the lower header at the inlet of the boiler hearth is connected with the smoke and air pipeline, so that the arrangement space of the pipeline is further compressed; as shown in fig. 1, a conventional drain pipe joint 5 is connected to the bottom of a lower header 6 and is positioned in the radial direction to ensure that drainage can be realized and accumulated water is not generated when drainage is performed; however, if the lower header at the inlet of the boiler furnace is counted according to the above, the lower header occupies a large longitudinal space, and the water drain pipeline interferes with the smoke and air pipeline, so that the arrangement cannot be completed.

Disclosure of Invention

The utility model aims at the above-mentioned not enough of prior art, provide a drain pipe joint draw bail of lower header, it occupies that vertical space is less, can prevent that drain pipe and cigarette wind pipeline from interfering mutually, and drainage in time can be arranged simultaneously.

In order to achieve the purpose, the utility model discloses a lower header drain pipe joint connecting structure, which comprises a lower header and a drain pipe joint which are connected with each other; the method is characterized in that: the drain pipe joint is positioned in the tangential direction of the inner circle of the lower header, and the lower end of the inner wall of the water inlet end of the drain pipe joint is flush with the bottom of the inner wall of the lower header;

when the drainage device is used, the lower end of the inner wall of the water inlet end of the drainage pipe joint is flush with the bottom of the inner wall of the lower collection box, so that drainage in the lower collection box can be drained; the drain pipe joint is positioned on the tangential direction of the lower header, so that the vertical space occupied by the drain pipe joint is small, and the drain pipe and the smoke and wind pipe can be prevented from being interfered;

as a further improvement of the utility model, the water inlet end of the drain pipe joint is an oblique section, and the oblique section is consistent with the inner wall cambered surface of the lower header; the inclined section increases the hydrophobic area of the inlet, and can accelerate hydrophobic discharge;

to sum up, the utility model discloses it is less to occupy longitudinal space, can prevent that hydrophobic pipeline and flue gas pipeline from interfering mutually, and drainage in time can be arranged simultaneously.

Drawings

FIG. 1 is a front view of a prior art lower header drain fitting.

Fig. 2 is a front view of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 2, the drain pipe joint connecting structure of the lower header of the embodiment includes a lower header 1 and a drain pipe joint 2 which are connected by welding; the drain pipe joint 2 is positioned on the tangential direction of the inner circle of the lower collection box 1, the lower end of the inner wall of the water inlet end of the drain pipe joint 2 is flush with the bottom of the inner wall of the lower collection box 1, and the water inlet end 3 of the drain pipe joint 2 is an inclined cross section and the inclination of the water inlet end is consistent with the cambered surface of the inner wall of the lower collection box 1;

when the drainage pipe joint is used, the lower end of the inner wall of the water inlet end of the drainage pipe joint 2 is flush with the bottom of the inner wall of the lower collection box, and the drainage pipe joint 2 is positioned in the tangential direction of the inner circle of the lower collection box 1, so that drainage in the lower collection box 1 can be drained completely, the occupied longitudinal space is small, and a drainage pipeline can be prevented from interfering with a smoke and air pipeline; the inclined section 3 increases the hydrophobic area of the inlet and can accelerate hydrophobic discharge.

Claims

1. A lower header drain pipe joint connecting structure comprises a lower header and a drain pipe joint which are connected with each other; the method is characterized in that: the drain pipe joint is positioned in the tangential direction of the inner circle of the lower header, and the lower end of the inner wall of the water inlet end of the drain pipe joint is flush with the bottom of the inner wall of the lower header.

2. The lower header drain pipe joint coupling structure according to claim 1, wherein: the water inlet end of the drain pipe joint is an inclined cross section, and the inclination of the water inlet end is consistent with the inner wall cambered surface of the lower header.