CN214619665U

CN214619665U - Drawer type air heater

Info

Publication number: CN214619665U
Application number: CN202120458705.3U
Authority: CN
Inventors: 邢海军; 高壮; 梁文华; 辛治远; 赖鹏; 李奇峰
Original assignee: Inner Mongolia Jinlian Aluminium Co ltd
Current assignee: Inner Mongolia Jinlian Aluminium Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-11-05
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses a drawer type air heater, including air heater body, push-and-pull drive assembly, rotatory dismantlement subassembly and air heater frame pipeline, air heater frame pipeline sets up for both ends open-ended cavity structures, the fixed slide rail that is equipped with of air heater frame pipeline inside wall, rotatory dismantlement subassembly is fixed to be located air heater frame pipeline inside wall one end, but push-and-pull drive assembly and rotatory dismantlement subassembly sliding connection, but rotatory dismantlement subassembly and push-and-pull drive assembly sliding connection, the body outside is equipped with a plurality of groups of pulleys, but pulley sliding clamping locates in the slide rail. The utility model belongs to the technical field of power equipment, specifically indicate a make wind channel resistance reduce in summer, reduce the fan power consumption, and can in time freeze after the air heater trouble winter, avoided the low drawer type air heater that causes cold junction jam, corrosion problems of air preheater air inlet temperature.

Description

Drawer type air heater

Technical Field

The utility model belongs to the technical field of power equipment, specifically indicate a drawer type air heater.

Background

The air heater of the thermal power plant is used as a device for improving the cold air temperature of the air preheater, so that the air preheater can be effectively prevented from low-temperature corrosion, and the smoke exhaust loss is reduced. Because of the conventional design of air heater is fixed air heater, according to current situation of use and energy saving and emission reduction's needs of current air heater, summarize fixed air heater and have following shortcoming:

(1) the fixed air heater causes high energy consumption of the fan. In summer, the fixed air heater does not need to be put into operation, resistance exists in the air channel due to the arrangement of the air heater tubes, sundries in the air can be deposited on the heat exchange fins of the air heater, so that the resistance of the air heater is continuously increased, and the power consumption of the fan is increased due to the resistance.

(2) The fixed air heater can not be overhauled on line after leakage. When the fixed air heater is applied to an extremely cold region, the problem that a pipe is frozen in the air heater in winter is solved, and the air heater can be unfrozen only after the air heater is warmed up in the weather because the air heater is fixed and cannot be unfrozen on line. The pipeline frost crack is easily caused by the icing of accumulated water in the air heater, so that the maintenance cost is increased and the maintenance is difficult. In winter, the air preheater is easy to corrode at low temperature due to the fact that the air inlet temperature of the air preheater is reduced due to the fact that the air heater is withdrawn, and the safe and stable operation of the air preheater is threatened.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a make the wind channel resistance reduce in summer, reduce the fan power consumption, and can in time freeze after the air heater trouble winter, avoided the low drawer type air heater that causes cold junction jam, corrosion problems of air preheater air inlet temperature.

In order to realize the above functions, the utility model discloses the technical scheme who takes as follows: a drawer type air heater comprises an air heater body, pulleys, a slide rail, a push-pull driving assembly, a rotary disassembling assembly and an air heater frame pipeline, wherein the air heater frame pipeline is of a hollow cavity structure with openings at two ends, the slide rail is fixedly arranged on the inner side wall of the air heater frame pipeline, the rotary disassembling assembly is fixedly arranged at one end of the inner side wall of the air heater frame pipeline, the push-pull driving assembly is slidably connected with the rotary disassembling assembly, the rotary disassembling assembly is slidably connected with the push-pull driving assembly, a plurality of groups of pulleys are arranged on the outer side of the body, the pulleys are slidably clamped in the slide rail, when the drawer type air heater does not need to be put into operation in summer, the push-pull driving assembly pushes the air heater body out of the air heater frame pipeline, the rotary disassembling assembly enables the push-pull driving assembly to be separated from the air heater body, and when the air heater is used, the air duct resistance is reduced, the power consumption of the fan is reduced.

Furthermore, the rotary disassembling assembly comprises a driving motor, a motor placing box, a limiting block, a rotating shaft and a connecting piece, the motor placing box is fixedly connected with the inner side wall of the pipeline of the air heater frame, the motor placing box is of a hollow cavity structure, the driving motor is fixedly arranged in the motor placing box, a driving shaft of the driving motor can rotatably penetrate through the motor placing box and is fixedly connected with the rotating shaft, the limiting block is fixedly connected with the rotating shaft, the push-pull driving assembly is slidably connected with the limiting block, the connecting piece is fixedly connected with the air heater body, the connecting piece is detachably connected with the push-pull driving assembly, and an output shaft of the driving motor rotates to drive the rotating shaft to rotate, so that the push-pull driving assembly is driven to be separated from the air heater body.

Further, the push-pull driving assembly comprises an expansion sleeve, an expansion ring and a fluted disc, the fluted disc is hinged to the inner side wall of the pipeline of the air heater frame, the expansion sleeve is of a hollow cavity structure with an open end, the open end of the expansion sleeve is slidably sleeved on the outer side of the rotating shaft, a limiting groove is arranged in the expansion sleeve, the limiting block is slidably clamped in the limiting groove, the expansion ring is fixedly arranged on the outer side of the expansion sleeve, a plurality of groups of expansion rings are arranged in parallel at equal intervals, the expansion ring is meshed with the fluted disc, and the fluted disc drives the expansion sleeve to slide along the rotating shaft, so that the push-pull operation of the air heater body is realized.

Further, be equipped with the mounting groove on the connecting piece, be equipped with the internal thread in the mounting groove, telescopic sleeve is close to fan heater body one end and is equipped with the screw thread with internal thread matched with, drags telescopic sleeve's rotation and realizes the dismouting of fan heater body.

Furthermore, a handle is fixedly arranged at one end, far away from the push-pull driving assembly, of the air heater body.

Furthermore, a rocking handle is fixedly arranged on the fluted disc, and one end of the rocking handle can rotatably penetrate through a pipeline of the frame of the air heater.

The utility model adopts the above structure to gain beneficial effect as follows: according to the drawer type air heater provided by the utility model, when the drawer type air heater does not need to be put into operation in summer, the push-pull type driving assembly pushes the air heater body out of the air heater frame pipeline, and the push-pull type driving assembly is separated from the air heater body by rotating the dismounting assembly, so that the air channel resistance is reduced during use, and the power consumption of the fan is reduced; in summer, sundries in the air can not be deposited on the air heater body when the drawer type air heater is stopped, so that the dirt of the air heater body is avoided, the heat exchange efficiency of the air heater body can be improved, and the heat efficiency of the boiler is improved; when the pipe of the drawer type air heater is frozen or leaks due to other reasons, the air heater body can be drawn out to realize online thawing, the phenomenon of pipeline frost crack caused by accumulated water and freezing in the air heater due to untimely treatment can be avoided, and the maintenance cost and the maintenance difficulty can be greatly reduced; the air heater body can be frozen in time after failure, the problems of cold end blockage and corrosion caused by low air inlet temperature of the air preheater are avoided, and the running safety of the air preheater in winter is improved; is convenient for maintenance. When the unit is overhauled, the maintenance can be carried out outside the frame pipeline of the air heater, the work of air duct opening, scaffold erection and the like is reduced, and the overhauling and maintenance workload is greatly reduced.

Drawings

Fig. 1 is a schematic structural view of a drawer-type air heater of the present invention;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

The fan heater comprises a fan heater body 1, a fan heater body 2, pulleys 3, a sliding rail 4, a push-pull driving assembly 5, a rotary dismounting assembly 6, a fan heater frame pipeline 7, a driving motor 8, a motor placing box 9, a limiting block 10, a rotating shaft 11, a connecting piece 12, a telescopic sleeve 13, a telescopic ring 14, a fluted disc 15, a limiting groove 16, a mounting groove 17, an internal thread 18, a thread 19, a handle 20 and a rocking handle.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model relates to a drawer type air heater, including air heater body 1, pulley 2, slide rail 3, push-and-pull drive assembly 4, rotatory dismantlement subassembly 5 and air heater frame pipeline 6, air heater frame pipeline 6 is both ends open-ended cavity structures setting, the fixed slide rail 3 that is equipped with of 6 inside walls of air heater frame pipeline, rotatory dismantlement subassembly 5 is fixed and is located air heater frame pipeline 6 inside wall one end, push-and-pull drive assembly 4 and rotatory dismantlement subassembly 5 sliding connection, but rotatory dismantlement subassembly 5 and push-and-pull drive assembly 4 sliding connection, the body outside is equipped with a plurality of groups pulley 2, but pulley 2 sliding card connects and locates in the slide rail 3.

Rotatory detaching assembly 5 includes that driving motor 7, motor place case 8, stopper 9, rotation axis 10 and connecting piece 11, the motor is placed case 8 and is fixed continuous with 6 inside walls of fan heater frame pipeline, the motor is placed case 8 and is the cavity structures setting, driving motor 7 is fixed to be located the motor and is placed in the case 8, driving motor 7's drive shaft is rotatable to run through the motor and is placed case 8 and fixed continuous with rotation axis 10, stopper 9 and rotation axis 10 are fixed continuous, but push-and-pull drive assembly 4 and stopper 9 sliding connection, connecting piece 11 and fan heater body 1 are fixed continuous, connecting piece 11 can dismantle with push-and-pull drive assembly 4 and be connected.

The push-pull driving assembly 4 comprises an expansion sleeve 12, an expansion ring 13 and a fluted disc 14, wherein the fluted disc 14 is hinged to the inner side wall of the fan heater frame pipeline 6, the expansion sleeve 12 is a hollow cavity structure with an open end, the open end of the expansion sleeve 12 is slidably sleeved on the outer side of the rotating shaft 10, a limiting groove 15 is arranged in the expansion sleeve 12, the limiting block 9 is slidably clamped in the limiting groove 15, the expansion ring 13 is fixedly arranged on the outer side of the expansion sleeve 12, a plurality of groups of the expansion ring 13 are arranged in parallel at equal intervals, and the expansion ring is meshed with the fluted disc 14.

Be equipped with mounting groove 16 on the connecting piece 11, be equipped with internal thread 17 in the mounting groove 16, telescopic sleeve 12 is close to 1 one end of fan heater body and is equipped with screw thread 18 with internal thread 17 matched with.

And a handle 19 is fixedly arranged at one end of the air heater body 1 far away from the push-pull driving assembly 4.

A rocking handle 20 is fixedly arranged on the fluted disc 14, and one end of the rocking handle 20 can rotatably penetrate through the pipeline 6 of the frame of the air heater.

When the air heater body 1 needs to be disassembled, the rocking handle 20 is rotated, the fluted disc 14 rotates to drive the telescopic sleeve 12 to slide along the rotating shaft 10, the push-pull operation on the air heater body 1 is realized, when the air heater body 1 moves to the opening of the air heater frame pipeline 6, the rotating shaft 10 is driven to rotate by the rotation of the output shaft of the driving motor 7, the telescopic sleeve 12 is driven to rotate by the transmission effect of the limiting block 9, the telescopic sleeve 12 is separated from the connecting piece 11, and the air heater body 1 is taken out by the pulling handle 19.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A drawer type air heater is characterized in that: the air heater comprises a heater body, a push-pull driving assembly, a rotary dismounting assembly and a heater frame pipeline, wherein the heater frame pipeline is a hollow cavity structure with two open ends, a slide rail is fixedly arranged on the inner side wall of the heater frame pipeline, the rotary dismounting assembly is fixedly arranged at one end of the inner side wall of the heater frame pipeline, the push-pull driving assembly is slidably connected with the rotary dismounting assembly, the rotary dismounting assembly is slidably connected with the push-pull driving assembly, a plurality of groups of pulleys are arranged on the outer side of the body, and the pulleys are slidably clamped in the slide rail.

2. The drawer type air heater as claimed in claim 1, wherein: the rotary disassembling assembly comprises a driving motor, a motor placing box, a limiting block, a rotating shaft and a connecting piece, the motor placing box is fixedly connected with the inner side wall of the pipeline of the fan heater frame, the motor placing box is of a hollow cavity structure, the driving motor is fixedly arranged in the motor placing box, a driving shaft of the driving motor can rotatably penetrate through the motor placing box and is fixedly connected with the rotating shaft, the limiting block is fixedly connected with the rotating shaft, the push-pull driving assembly is slidably connected with the limiting block, the connecting piece is fixedly connected with the fan heater body, and the connecting piece is detachably connected with the push-pull driving assembly.

3. The drawer type air heater as claimed in claim 2, wherein: the push-pull driving assembly comprises a telescopic sleeve, a telescopic ring and a fluted disc, the fluted disc is hinged to the inner side wall of the pipeline of the air heater frame, the telescopic sleeve is of a hollow cavity structure with an open end, the open end of the telescopic sleeve is slidably sleeved on the outer side of a rotating shaft, a limiting groove is arranged in the telescopic sleeve, the limiting block is slidably clamped in the limiting groove, the telescopic ring is fixedly arranged on the outer side of the telescopic sleeve, a plurality of groups of the telescopic ring are arranged in parallel at equal intervals, and the telescopic ring is meshed with the fluted disc.

4. A drawer type air heater according to claim 3, wherein: be equipped with the mounting groove on the connecting piece, be equipped with the internal thread in the mounting groove, telescopic sleeve is close to fan heater body one end and is equipped with the screw thread with internal thread matched with.

5. The drawer type air heater as claimed in claim 4, wherein: and one end of the air heater body, which is far away from the push-pull driving assembly, is fixedly provided with a handle.

6. The drawer type air heater as claimed in claim 5, wherein: a rocking handle is fixedly arranged on the fluted disc, and one end of the rocking handle can rotatably penetrate through a pipeline of the frame of the air heater.