CN209840419U - Drainage structure of rotary air heater - Google Patents

Abstract

A drainage structure of a rotary air heater comprises an air heater frame and a heat exchange tube box of the rotary air heater, a first shaft seat and a second shaft seat are respectively arranged at two side ends of the air heater frame, the mounting position of the first shaft seat is higher than that of the second shaft seat to form a position difference, two ends of the heat exchange tube box of the rotary air heater are respectively and rotatably arranged on the first shaft seat and the second shaft seat, the axis of the heat exchange tube box of the rotary air heater forms an inclination angle with the plane, the rotary air heater realizes the functions of rotation and drainage, meanwhile, all parts are relatively easy to produce and install, namely the symmetrical part-dividing design of the bearing base, the installation of the bearing and the graphite disk root is relatively easy, the utility model has simple structure, low cost and good sealing performance, but greatly facilitates the production and installation of components, and the rotary air heater can achieve good sealing performance while achieving drainage.

Description

Drainage structure of rotary air heater

Technical Field

The utility model relates to a thermal power factory fan heater, concretely relates to rotation type fan heater hydrophobic construction.

Background

The existing air heaters are generally installed on a horizontal or vertical air duct at the outlet of a fan and are divided into fixed air heaters and rotary air heaters. The inside medium of fixed fan heater equipment is the water of higher temperature generally, and the inside medium of rotation type fan heater equipment is steam, and both utilize the metal heat conductivity to give the air with heat transfer to reach the purpose of heating cold air, but the rotation type fan heater is lost because of the heat at heat transfer in-process part steam, and the condensation is water, and most steam still exists with the form of vapour state. For the rotary air heater on the vertical air channel, water formed by condensation cannot be discharged out of the heat exchange tube completely and timely, the water is stored in the heat exchange tube to reduce the heat exchange amount and reduce the heat exchange effect, and the wall thickness of the heat exchange tube of the rotary air heater is thin, so that the heat exchange tube is easily corroded if the water is stored in the heat exchange tube for a long time.

Disclosure of Invention

For overcoming the not enough of above-mentioned prior art existence, the utility model aims to provide a rotation type fan heater hydrophobic structure to seek to reach the interior comdenstion water of discharge rotation type fan heater heat exchanger, and the preparation of hydrophobic side structure is convenient, the swift purpose of installation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a rotation type air heater hydrophobic construction, includes air heater frame and rotation type air heater heat exchanger pipe case, first axle bed and second axle bed are installed respectively to air heater frame both ends, the mounted position of first axle bed is higher than the mounted position of second axle bed and forms the position difference, the both ends of rotation type air heater heat exchanger pipe case are rotated respectively and are installed on first axle bed and second axle bed, the axle center and the plane of rotation type air heater heat exchanger pipe case form the angle of inclination.

Furthermore, an air inlet pipe is arranged on the rotary air heater heat exchange pipe box opposite to the first shaft seat, a drain pipe is arranged on the rotary air heater heat exchange pipe box opposite to the second shaft seat, one end of the drain pipe is communicated with the inside of the rotary air heater heat exchange pipe box, and the other end of the drain pipe is communicated with the outside of the rotary air heater heat exchange pipe box.

Further, first axle bed and second axle bed include bearing, sealing washer and backing plate, the second axle bed passes through the backing plate to be installed on the fan heater frame, the closing plate is installed between the bearing of second axle bed and rotation type fan heater heat exchanger pipe case.

Furthermore, the second shaft seat is composed of two sheet type shaft seats which are combined oppositely.

Furthermore, the bearing of the heat exchange tube box of the rotary air heater arranged on the vertical air duct or the horizontal air duct is an angular contact bearing.

Furthermore, the inclination angle formed by the axis of the heat exchange tube box of the rotary air heater and the plane is more than 2 degrees, and the preferred angle is between 2 degrees and 3 degrees.

Compared with the prior art, the beneficial effects of the utility model reside in that: the rotation and drainage functions of the rotary air heater are realized, and meanwhile, all parts are relatively easy to produce and install, namely, the bearing base is symmetrically designed in a piece-dividing manner, so that the bearing and the graphite disk root are relatively easy to install; the utility model discloses simple structure, low cost, sealing performance is good, but very big has made things convenient for part production and installation, and rotation type air heater keeps good sealing performance when reaching hydrophobic.

Drawings

The present invention will be further described with reference to the accompanying drawings and specific embodiments, which are obvious from the following description and are merely representations of the technical solutions, and other specific embodiments can be obtained according to the technical solutions.

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic view showing the enlarged part of the drain side of the rotary air heater of the present invention.

Fig. 3 is a schematic view of the shaft seat of the present invention.

Detailed Description

As shown in fig. 1 to 3, a drainage structure of a rotary air heater comprises an air heater frame 4 and a rotary air heater heat exchange tube box 3, wherein a first shaft seat 2 and a second shaft seat 8 are respectively installed at two side ends of the air heater frame 4, the installation position of the first shaft seat 2 is higher than that of the second shaft seat 8 to form a position difference, two ends of the rotary air heater heat exchange tube box 3 are respectively rotatably installed on the first shaft seat 2 and the second shaft seat 8, and an axis of the rotary air heater heat exchange tube box 3 forms an inclination angle with a plane.

Further, an air inlet pipe 1 is mounted on the rotary type air heater heat exchange pipe box 3 opposite to the first shaft base 2, a drain pipe 5 is mounted on the rotary type air heater heat exchange pipe box 3 opposite to the second shaft base 8, one end of the drain pipe 5 is communicated with the inside of the rotary type air heater heat exchange pipe box 3, the other end of the drain pipe 5 is communicated with the outside of the rotary type air heater heat exchange pipe box 3, and preferably, the drain pipe 5 is mounted on the second shaft base 8.

Further, the first shaft seat 2 and the second shaft seat 8 comprise a bearing 6, a sealing ring 7 and a base plate 9, the second shaft seat 8 is installed on the air heater frame 4 through the base plate 9, and the sealing ring 7 is installed between the second shaft seat 8 and the bearing 6 of the rotary air heater heat exchange tube box 3.

Further, the second shaft seat 8 is composed of two sheet type shaft seats combined in an opposite direction.

Further, the bearing 6 of the rotary type air heater heat exchange tube box 3 arranged on the vertical air channel is an angular contact bearing.

Further, the inclination angle formed by the axis of the heat exchange tube box 3 of the rotary air heater and the plane is more than 2 degrees, and the preferred angle is between 2 degrees and 3 degrees.

The utility model discloses a work like this: when steam in the heat exchange tube of the rotary air heater is condensed into water, because the heat exchange tube box is obliquely arranged, condensed water can flow down along the bottom of the inner wall of the heat exchange tube due to the self gravity and is discharged through the drain tube of the heat exchange tube box.

It should be apparent that the above-mentioned embodiment is only one example of the present invention, and any simple modification on the structure or principle of the present invention falls within the protection scope of the present invention.

Claims (6)

1. The utility model provides a rotation type air heater hydrophobic construction, its characterized in that includes air heater frame and rotation type air heater heat exchanger pipe case, first axle bed and second axle bed are installed respectively to air heater frame both ends, the mounted position of first axle bed is higher than the mounted position of second axle bed and forms the position difference, the both ends of rotation type air heater heat exchanger pipe case are rotated respectively and are installed on first axle bed and second axle bed, the axle center and the plane of rotation type air heater heat exchanger pipe case form the angle of inclination.

2. The drainage structure of claim 1, wherein the steam inlet pipe is installed on the heat exchange pipe box of the rotary air heater opposite to the first shaft seat, the drainage pipe is installed on the heat exchange pipe box of the rotary air heater opposite to the second shaft seat, one end of the drainage pipe is communicated with the inside of the heat exchange pipe box of the rotary air heater, and the other end of the drainage pipe is communicated with the outside of the heat exchange pipe box of the rotary air heater.

3. The drainage structure of claim 1, wherein the first and second shaft seats comprise bearings, sealing rings and backing plates, the second shaft seat is mounted on the frame of the air heater through the backing plate, and the sealing plate is mounted between the second shaft seat and the bearings of the heat exchange tube box of the rotary air heater.

4. The hydrophobic structure of claim 3, wherein the second shaft seat comprises two plate-type shaft seats combined in opposite directions.

5. The hydrophobic structure of the rotary air heater according to claim 3, wherein the bearing of the heat exchange tube box of the rotary air heater is an angular contact bearing.

6. The hydrophobic structure of a rotary air heater according to claim 1, wherein the axis of the heat exchange tube box of the rotary air heater forms an inclination angle with the plane greater than 2 °.