CN211084116U

CN211084116U - Waste heat utilization assembly of thermal power plant

Info

Publication number: CN211084116U
Application number: CN201921900114.6U
Authority: CN
Inventors: 王坤; 朱彦; 陈煦阳
Original assignee: Shanghai Dayu Power Equipment Maintenance And Installation Co ltd
Current assignee: Shanghai Dayu Power Equipment Maintenance And Installation Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-24
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a waste heat utilization assembly of a thermal power plant, which comprises a box body, wherein an air inlet pipe and a conveying pipe are respectively arranged at two sides of the box body, a filter screen is fixedly arranged on the inner wall of one end of the conveying pipe extending into the box body, a heat exchanger is fixedly arranged at one end of the conveying pipe extending out of the box body, a guide pipe is fixedly arranged at the bottom of the heat exchanger, the other end of the guide pipe is provided with a water tank, the guide pipe is communicated with the inside of the water tank, an air outlet pipe is fixedly arranged at one side of the heat exchanger away from the conveying pipe, a dust collecting plate is fixedly arranged at the bottom of the box body, the shape of the dust collecting plate is C-shaped, a limiting plate moves upwards to drive a clamping rod to rotate to the clamping rod to enter a mounting plate, at the moment, a first spring stretches, the dust collecting plate is convenient to mount and dismount and convenient to use.

Description

Waste heat utilization assembly of thermal power plant

Technical Field

The utility model relates to a waste heat utilization field of thermal power plant especially relates to a waste heat utilization subassembly of thermal power plant.

Background

A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy.

This application improves under prior art, at thermal power in-process, contain the dust in the flue gas of fuel burning release to have the heat in the flue gas, this part heat directly discharges, causes the waste easily, and the dust collecting plate is not convenient for install and dismantle among the current waste heat utilization equipment of thermal power plant, wastes time and energy, can bring very big inconvenience for the workman, and the box inner wall can be attached to a large amount of dusts and be not convenient for clear up after through the flue gas.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a waste heat utilization component of a thermal power plant.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a waste heat utilization subassembly of thermal power plant, includes the box, intake pipe and conveyer pipe are installed respectively to the box both sides, the one end inner wall fixed mounting that the conveyer pipe stretched into the box has the filter screen, the one end fixed mounting that the conveyer pipe stretches out the box has the heat exchanger, heat exchanger bottom fixed mounting has the pipe, and the pipe other end installs the water tank, pipe and the inside intercommunication of water tank, one side fixed mounting that the conveyer pipe was kept away from to the heat exchanger has the outlet duct, bottom half fixed mounting has the dust collecting plate, and the dust collecting plate shape is the C font.

As a further description of the above technical solution: the improved double-screw bolt box is characterized in that a double-screw bolt and a guide rod are rotatably connected in the box body and are symmetrically distributed, a first motor is fixedly mounted at the top of the box body, an output shaft of the first motor is fixedly connected with the double-screw bolt, sliding blocks are mounted on the outer walls of the double-screw bolt and the guide rod and are in threaded connection with the double-screw bolt, the sliding blocks are in sliding connection with the guide rod and are two groups, a connecting rod is welded between the sliding blocks, and a.

As a further description of the above technical solution: connecting rod bottom fixed mounting has the protection casing, and be equipped with in the protection casing with connecting rod bottom fixed mounting's second motor, the fixed coupling of one end outer wall that second motor output shaft stretches out the protection casing bottom has the bull stick, the welding of bull stick both ends has the piece of scraping, scrape one side that the bull stick was kept away from to the piece and install the brush hair.

The technical scheme is further described in that mounting plates are welded on two sides of the bottom of the box body, the mounting plates are L-shaped, fixed columns are welded on the inner walls of the tops of the mounting plates, movable columns are connected to the inner walls of the fixed columns in a sliding mode, one ends of the movable columns, extending out of the bottoms of the fixed columns, are rotatably connected with connecting shafts, limiting plates are connected to the outer walls of the bottoms of the connecting shafts in a threaded mode, and the limiting plates are welded with dust collecting plates.

As a further description of the above technical solution: one side sliding connection that the box was kept away from to the mounting panel has the push rod, the push rod stretches into the one end of mounting panel and installs the joint pole articulated with the mounting panel, and joint pole and limiting plate butt.

As a further description of the above technical solution: the joint pole is close to one side of push rod and has seted up the spout, and spout inner wall sliding connection have with push rod articulated movable block, the one end welding that the mounting panel was stretched out to the push rod has the fixed plate, the push rod outer lane cup joint with fixed plate fixed connection's first spring, and the first spring other end and mounting panel outer wall fixed connection.

As a further description of the above technical solution: one end of the movable column extending into the fixed column is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the inner wall of the top of the fixed column.

The utility model discloses following beneficial effect has:

1. when the utility model is installed, the movable column is pulled to extend the movable column, the connecting shaft is rotated to fix the connecting shaft and the limiting plate, the dust collecting plate welded with the limiting plate is pushed to move upwards, the limiting plate moves upwards to drive the clamping rod to rotate until the clamping rod enters the mounting plate, at the moment, the first spring stretches, the dust collecting plate is continuously pushed to move upwards, the first spring resets to drive the push rod to reset, the push rod resets the clamping rod and fixes the limiting plate, the mounting of the dust collecting plate is realized, when the dust collecting plate is disassembled, the dust collecting plate is slightly pushed to move upwards, the clamping rod is contacted with the dust collecting plate, the push rod is moved by pulling the fixing plate, the first spring stretches, the push rod drives the clamping rod to rotate to enable the clamping rod to enter the mounting plate, at the moment, the dust collecting plate can move downwards only by applying a, can accomplish the dismantlement to the dust collecting plate, be convenient for install and dismantle the dust collecting plate, facilitate the use.

2. The utility model discloses during well use, with the thermal power plant in the thermal power plant produced have thermal flue gas send into the box through the intake pipe in, the flue gas filters out the dust through the filter screen, later in the flue gas carries the heat exchanger through the conveyer pipe, the heat exchanger heats water in with partly heat transport to the water tank, the heat exchanger utilizes another part heat in carrying other machines through the outlet duct, realizes the recycle to the thermal power plant waste heat.

3. The utility model discloses in after waste heat recovery accomplishes, stop carrying the flue gas in the box, start first motor and second motor, first motor output shaft rotates and drives the double-screw bolt and be periodic positive and negative rotation, the double-screw bolt rotates and drives the slider and remove and then drive the connecting rod and remove, second motor output shaft rotates simultaneously and drives the bull stick and rotate and then drive and scrape the piece and rotate, scrape the brush hair on the piece and clear up the dust on box inner wall and the filter screen, later the dust falls into the dust collecting plate on, realize the clearance to the box inner wall dust.

Drawings

Fig. 1 is a schematic structural diagram of a waste heat utilization assembly of a thermal power plant according to the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is the utility model provides a side view cross-sectional view of waste heat utilization subassembly of thermal power plant.

Illustration of the drawings:

1-box body, 2-air inlet pipe, 3-conveying pipe, 4-filter screen, 5-heat exchanger, 6-water tank, 7-dust collecting plate, 8-stud, 9-connecting rod, 10-rotating rod, 11-mounting plate, 12-fixed column, 13-movable column, 14-connecting shaft, 15-limiting plate, 16-push rod, 17-clamping rod, 18-guide rod, 19-scraping block and 20-sliding block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the utility model provides a waste heat utilization assembly of thermal power plant, including box 1, intake pipe 2 and conveyer pipe 3 are installed respectively to box 1 both sides, the inner wall of one end that conveyer pipe 3 stretches into box 1 is fixed with filter screen 4, the one end that conveyer pipe 3 stretches out box 1 is fixed with heat exchanger 5, heat exchanger 5 bottom is fixed with the pipe, and the pipe other end is installed with water tank 6, the pipe communicates with water tank 6 inside, one side that conveyer pipe 3 was kept away from to heat exchanger 5 is fixed with the outlet duct, box 1 bottom is fixed with dust collecting plate 7, and dust collecting plate 7 shape is C font, realize recycling to waste heat of thermal power plant, realize collecting the dust in the flue gas simultaneously;

referring to fig. 1 and 3, in the application, a stud 8 and a guide rod 18 are rotatably connected in a box body 1, the stud 8 and the guide rod 18 are symmetrically distributed, a first motor is fixedly installed at the top of the box body 1, an output shaft of the first motor is fixedly connected with the stud 8, sliding blocks 20 are installed on the outer walls of the stud 8 and the guide rod 18, the sliding blocks 20 are in threaded connection with the stud 8, the sliding blocks 20 are in sliding connection with the guide rod 18, a connecting rod 9 is welded between the two groups of sliding blocks 20, a rotating rod 10 is arranged below the connecting rod 9, and the stud 8 and the guide rod 18 are;

referring to fig. 1 and 3, in the application, a protective cover is fixedly mounted at the bottom of a connecting rod 9, a second motor fixedly mounted at the bottom of the connecting rod 9 is arranged in the protective cover, a rotating rod 10 is fixedly sleeved on the outer wall of one end, extending out of the bottom of the protective cover, of an output shaft of the second motor, scraping blocks 19 are welded at two ends of the rotating rod 10, bristles are mounted on one side, away from the rotating rod 10, of the scraping blocks 19, the second motor drives the rotating rod 10 to rotate so as to drive the scraping blocks 19 to rotate, and the bristles on the scraping blocks 19 clean the inner wall;

referring to fig. 1 and 2, in the application, mounting plates 11 are welded on two sides of the bottom of a box body 1, the mounting plates 11 are L-shaped, fixed columns 12 are welded on the inner walls of the tops of the mounting plates 11, movable columns 13 are slidably connected to the inner walls of the fixed columns 12, one ends of the movable columns 13, extending out of the bottoms of the fixed columns 12, are rotatably connected with connecting shafts 14, limiting plates 15 are connected to the outer walls of the bottoms of the connecting shafts 14 in a threaded mode, the limiting plates 15 are welded with dust collecting plates 7, and the connecting shafts 14 are connected with the limiting plates 15 to prevent dust collecting failure;

referring to fig. 1 and 2, in the present application, a push rod 16 is slidably connected to a side of the mounting plate 11 away from the box body 1, a clamping rod 17 hinged to the mounting plate 11 is installed at one end of the push rod 16 extending into the mounting plate 11, the clamping rod 17 abuts against the limiting plate 15, and the clamping rod 17 helps to fix the dust collecting plate 7;

referring to fig. 2, in the present application, a sliding groove is formed in one side of the clamping rod 17 close to the push rod 16, a movable block hinged to the push rod 16 is connected to the inner wall of the sliding groove in a sliding manner, a fixed plate is welded to one end, extending out of the mounting plate 11, of the push rod 16, a first spring fixedly connected to the fixed plate is sleeved on the outer ring of the push rod 16, the other end of the first spring is fixedly connected to the outer wall of the mounting plate 11, and the first spring, the push rod 16 and the clamping rod 17 are matched to assist in mounting;

referring to fig. 1 and 2, in the present application, one end of the movable column 13 extending into the fixed column 12 is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the inner wall of the top of the fixed column 12, and the second spring provides an upward moving space for the installation and disassembly of the dust collecting plate 7.

The working principle is as follows:

in the application, during installation, the movable column 13 is pulled to extend the movable column 13, the connecting shaft 14 is rotated to fix the connecting shaft 14 and the limiting plate 15, the dust collecting plate 7 welded with the limiting plate 15 is pushed to move upwards, the limiting plate 15 moves upwards to drive the clamping rod 17 to rotate until the clamping rod 17 enters the mounting plate 11, at the moment, the first spring is stretched, the dust collecting plate 7 is continuously pushed to move upwards, the first spring resets to drive the push rod 16 to reset, the push rod 16 resets the clamping rod 17 and fixes the limiting plate 15, and installation of the dust collecting plate 7 is realized;

when the heat recovery device is used, flue gas with heat generated in a thermal power plant is sent into the box body 1 through the air inlet pipe 2, the flue gas is filtered to form dust through the filter screen 4, then the flue gas is sent into the heat exchanger 5 through the conveying pipe 3, the heat exchanger 5 sends a part of heat into the water tank 6 to heat water, the heat exchanger 5 sends the other part of heat into other machines through the air outlet pipe to be utilized, and the waste heat of the thermal power plant is recycled;

in the application, after waste heat recycling is completed, flue gas conveying in the box body 1 is stopped, the first motor and the second motor are started, the output shaft of the first motor rotates to drive the stud 8 to rotate in a positive and negative direction periodically, the stud 8 rotates to drive the sliding block 20 to move so as to drive the connecting rod 9 to move, meanwhile, the output shaft of the second motor rotates to drive the rotating rod 10 to rotate so as to drive the scraping block 19 to rotate, bristles on the scraping block 19 clean dust on the inner wall of the box body 1 and the filter screen 4, and then the dust falls onto the dust collecting plate 7, so that the dust on the inner wall of the box body 1 is cleaned;

in this application, during the dismantlement, lightly promote dust collecting plate 7 and make limiting plate 15 shift up, joint pole 17 and the contact of dust collecting plate 7 simultaneously, the pulling fixed plate makes push rod 16 remove, first spring is tensile, push rod 16 drives joint pole 17 and rotates and make in joint pole 17 gets into mounting panel 11, only need exert less power at this moment and hold up dust collecting plate 7 and can make dust collecting plate 7 downstream, it makes connecting axle 14 and limiting plate 15 break away from to rotate connecting axle 14, can accomplish the dismantlement to dust collecting plate 7, be convenient for install and dismantle dust collecting plate 7, and is convenient for use.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a waste heat utilization subassembly of thermal power plant, includes box (1), its characterized in that: intake pipe (2) and conveyer pipe (3) are installed respectively to box (1) both sides, the one end inner wall fixed mounting that conveyer pipe (3) stretched into box (1) has filter screen (4), the one end fixed mounting that conveyer pipe (3) stretched out box (1) has heat exchanger (5), heat exchanger (5) bottom fixed mounting has the pipe, and the pipe other end installs water tank (6), pipe and water tank (6) inside intercommunication, one side fixed mounting that conveyer pipe (3) were kept away from in heat exchanger (5) has the outlet duct, box (1) bottom fixed mounting has dust collecting plate (7), and dust collecting plate (7) shape is the C font.

2. The waste heat utilization assembly of the thermal power plant as claimed in claim 1, wherein: the utility model discloses a box, including box (1), connecting rod (9) below, the internal rotation of box (1) is connected with double-screw bolt (8) and guide arm (18), and double-screw bolt (8) and guide arm (18) symmetric distribution, box (1) top fixed mounting has first motor, and first motor output shaft and double-screw bolt (8) fixed connection, slider (20) are all installed to double-screw bolt (8) and guide arm (18) outer wall, slider (20) and double-screw bolt (8) threaded connection, slider (20) and guide arm (18) sliding connection, two sets of the welding has connecting rod (9) between slider.

3. The waste heat utilization assembly of the thermal power plant as claimed in claim 2, wherein: connecting rod (9) bottom fixed mounting has the protection casing, and is equipped with the second motor with connecting rod (9) bottom fixed mounting in the protection casing, and the fixed cover of one end outer wall that second motor output shaft stretches out the protection casing bottom has connect bull stick (10), the welding of bull stick (10) both ends has scrapes piece (19), scrape one side that piece (19) kept away from bull stick (10) and install the brush hair.

4. The waste heat utilization assembly of the thermal power plant as claimed in claim 1, wherein mounting plates (11) are welded to two sides of the bottom of the box body (1), the mounting plates (11) are L-shaped, fixed columns (12) are welded to inner walls of the tops of the mounting plates (11), movable columns (13) are connected to inner walls of the fixed columns (12) in a sliding mode, one ends, extending out of the bottoms of the fixed columns (12), of the movable columns (13) are rotatably connected with connecting shafts (14), limiting plates (15) are connected to outer walls of the bottoms of the connecting shafts (14) in a threaded mode, and the limiting plates (15) are welded to dust collecting plates (7).

5. The waste heat utilization assembly of the thermal power plant as claimed in claim 4, wherein: one side sliding connection that box (1) was kept away from in mounting panel (11) has push rod (16), push rod (16) stretch into the one end of mounting panel (11) install with mounting panel (11) articulated joint pole (17), and joint pole (17) and limiting plate (15) butt.

6. The waste heat utilization assembly of the thermal power plant as claimed in claim 5, wherein: the clamping rod (17) is close to one side of push rod (16) and has been seted up the spout, and spout inner wall sliding connection have with push rod (16) articulated movable block, the one end welding that mounting panel (11) were stretched out in push rod (16) has the fixed plate, push rod (16) outer lane cup jointed with fixed plate fixed connection's first spring, and the first spring other end and mounting panel (11) outer wall fixed connection.

7. The waste heat utilization assembly of the thermal power plant as claimed in claim 4, wherein: one end of the movable column (13) extending into the fixed column (12) is fixedly connected with a second spring, and the other end of the second spring is fixedly connected with the inner wall of the top of the fixed column (12).