CN210356367U

CN210356367U - Flue gas dust removal equipment of power plant

Info

Publication number: CN210356367U
Application number: CN201920884119.8U
Authority: CN
Inventors: 邱章强
Original assignee: Nanjing University of Information Science and Technology
Current assignee: NANJING PUKOU DISTRICT TIANHE AUTOMATION EQUIPMENT Co.,Ltd.
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-21
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses a flue gas dust collecting equipment of power plant, including dust removal box, flue gas inlet, dust removal filter bag, deashing system and last box, the side of going up the box is provided with exhanst gas outlet, and the top of going up the box is provided with the top cap, the below of top cap bonds there is foamed aluminum plate, foamed aluminum plate bonds there is the baffle, the deashing system is including setting up the jetting pipe in the below of last box, jetting pipe below is connected with the venturi tube, be connected with pneumatic valve between jetting pipe and the venturi tube, be provided with outside jet pipe way between two adjacent venturi tubes, outside jet pipe way is connected with the jetting pipe through pneumatic valve. The utility model provides a pair of flue gas dust collecting equipment of power plant, the noise is little in the operation process, and the deashing effect is showing.

Description

Flue gas dust removal equipment of power plant

Technical Field

The utility model belongs to the technical field of the flue gas dust removal, concretely relates to flue gas dust collecting equipment of power plant.

Background

The bag type dust removal equipment in China originated in the beginning of eighties of the twentieth century, was used in industries such as metallurgy, building materials, cement, steel, coal-fired power plants, chemical engineering and the like, is restricted by current objective conditions, and the development of the bag type dust remover is also greatly hindered. In the late nineties, through the diligent attempts of researchers, continuous improvement and innovation are carried out, the design and technical difficulties of key parts are broken through, and the bag type dust collector is developed to a certain extent in China. At present, no relevant professional design standard and specification can be referred to in the aspect of body structure design of the bag-type dust collector. Because the technical levels of various manufacturers are different, especially in the aspect of the structural design of the dust remover, an analogy and applying method is adopted, so that not only is steel wasted, but also the risk of structural instability exists, meanwhile, the existing bag type dust removing equipment has the phenomena of high noise and extremely difficult ash removal, the development of the bag type dust removing equipment is severely limited, and the problems need to be solved urgently.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a flue gas dust collecting equipment of power plant.

The utility model discloses a realize through following technical scheme.

The utility model provides a flue gas dust removal equipment of power plant, includes the dust removal box, be provided with the deashing system in the dust removal box, the deashing system includes the jetting pipe, jetting pipe below is equipped with the card, has seted up a plurality of filter bag holes in the card, a plurality of venturi tubes are installed respectively to a plurality of filter bag hole tops, there is a filter bag hole at the interval between per two adjacent venturi tubes, the below of installing the filter bag hole of venturi tube corresponds respectively and has hung dust removal filter bag, be connected with inside jet gas pipeline between every venturi tube and the jetting pipe that is located the card top, install pneumatic valve on the inside jet gas pipeline, be connected with outside jet gas pipeline between the filter bag hole that is located between two adjacent venturi tubes in the card respectively and the jetting pipe, install pneumatic valve in every outside jet gas pipeline respectively, the card below is provided with the filter bag frame that is used for fixed dust removal filter bag.

Furthermore, the top of the dust removal box body is provided with an upper box body, the bottom of the dust removal box body is provided with an ash bucket, the outside of the dust removal box body is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet is positioned below the ash removal system, and the flue gas outlet is positioned above the ash removal system.

Further, go up the box top and be equipped with the top cap, the lower surface of top cap bonds and has foamed aluminum plate, and foamed aluminum plate's lower surface bonds and has a plurality of baffles, the positive prism platform structure of baffle for invering, the top surface and the foamed aluminum plate laminating of baffle, the bottom surface of baffle are towards the card, and the top surface area of baffle is greater than the bottom surface area of baffle.

Furthermore, a support is arranged outside the ash bucket and is a triangular support.

Furthermore, the section of the injection pipe, which is positioned outside the dust removal box body, is connected with the air injection pipe of the air compressor, a pressure transmitter, a pressure reducing valve and an air filter are sequentially installed in the section of the injection pipe, the pressure transmitter is close to the inlet end of the injection pipe, the positions of the inlet end of the injection pipe, which is positioned on the pressure transmitter, and the position of the outlet end of the air filter are respectively connected with the two ends of a bypass pipeline in a crossing manner, and a stop valve is arranged in the bypass pipeline.

Furthermore, the filter bag frame comprises a frame body and a support column positioned in the middle of the frame body, the support column is horizontally arranged in the dust removal box body, and two ends of the support column are respectively fixed on the side walls at two ends of the dust removal box body.

Furthermore, an inspection door is arranged on the side wall of the dust removal box body and is arranged at a position which is parallel and level with the bottom of the filter bag frame.

Compared with the prior art, the utility model has the advantages as follows:

1. the utility model discloses can be in the dust removal in the scheme through setting up the gas injection pipeline respectively at dust removal filter bag top and side setting, open inside and outside gas injection pipeline, thoroughly clear away the inside and outside gray scale of filter bag, drop the ash bucket of below simultaneously under compressed air's blowing, promoted the effect of dust collecting equipment deashing.

2. Through setting up foamed aluminum plate in the below of top cap to the baffle that bonds on foamed aluminum plate, noise pollution that can effectual reduction exhanst gas outlet department.

3. Through setting up the bypass pipeline, can play the effect of effectual protection dust collecting equipment filter bag.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a flue gas dust removal device of a power plant of the present invention;

FIG. 2 is a block diagram of the top cover;

FIG. 3 is a structural view of the card.

Reference numerals:

the device comprises an upper box body-1, a smoke outlet-2, a top cover-3, an aluminum foam plate-4, a baffle-5, an injection pipe-6, a venturi-7, a pneumatic valve-8, an external air injection pipeline-9, a pattern plate-10, a filter bag hole-101, a filter bag frame-11, a dust removal filter bag-12, a smoke inlet-13, a dust hopper-14, a dust outlet-15, a dust removal box body-16, a support-17, an internal air injection pipeline-18, an air filter-19, a pressure reducing valve-20, a pressure transmitter-21, a bypass pipeline-22, a gas detection device-23, a support column-24, a general controller-25, an inspection door-26 and a stop valve-27.

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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified 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.

Example 1

In order to effectively clear away the residual dust on the dust removal filter bag, the utility model discloses a scheme design as follows:

as shown in fig. 1, a flue gas dust removal device for a power plant comprises a dust removal box 16, a dust removal system is arranged in the dust removal box 16, the dust removal system comprises an injection pipe 6, a pipe section of the injection pipe 6, which is positioned outside the dust removal box, is connected with an air injection pipe of an air compressor, a pressure transmitter 21, a pressure reducing valve 20 and an air filter 19 are sequentially arranged in the pipe section outside the injection pipe 6, the pressure transmitter 21 is close to an inlet end of the injection pipe 6, which is positioned at the inlet end of the pressure transmitter 21 and an outlet end of the air filter 19, are respectively connected with two ends of a bypass pipeline 22 in a crossing manner, a stop valve 27 is arranged in the bypass pipeline 22, a pattern plate 10 is arranged below the pipe section of the injection pipe 6, which is positioned inside the dust removal box 16, a plurality of filter bag holes 101 are arranged in the pattern plate 10, a plurality of venturi tubes 7 are respectively arranged above the plurality, dust removal filter bags 12 are hung below the filter bag holes provided with the venturis 7 correspondingly, an internal air injection pipeline 18 is connected between each venture 7 and the injection tube 6 positioned above the faceplate 10, an air-operated valve 8 is installed on the internal air injection pipeline 18, an external air injection pipeline 9 is connected between the injection tube 6 and each filter bag hole 101 positioned between two adjacent venturis 7 in the faceplate 10, an air-operated valve 8 is installed in each external air injection pipeline 9, a filter bag frame 11 used for fixing a dust removal filter bag 12 is arranged below the pattern plate 10, the filter bag frame 11 comprises a frame body and a support column 24 positioned in the middle of the frame body 11, the supporting column 24 is horizontally arranged in the dust removing box body 16, two ends of the supporting column 24 are respectively fixed on the side walls of two ends of the dust removing box body 16, an inspection door 26 is mounted on the side wall of the dust-removing box body 16, and the inspection door 26 is arranged at a position flush with the bottom of the filter bag frame 11. The outer wall of the dust removing box body 16 is provided with a master controller 25, the master controller 25 is respectively and electrically connected with the pneumatic valve 8, the air filter 19, the pressure reducing valve 20, the pressure transmitter 21 and the stop valve 27, and the master controller 27 can ensure the operation of the dust removing system by controlling the electrically connected devices.

Example 2

Noise when effectual reduction deashing, the utility model discloses the top to the dust removal box is improved, and concrete scheme is as follows:

as shown in fig. 1 and 2, the upper box 1 is mounted at the top of the dust-removing box 16, the ash bucket 14 is mounted at the bottom of the dust-removing box 16, a support 17 is mounted outside the ash bucket 14, and the support 17 is a triangular support. The dust removal box body 16 is externally provided with a flue gas inlet 13 and a flue gas outlet 2, the flue gas outlet 2 is internally provided with a gas detection device 23, whether the dust removal filter bag 12 needs to be removed dust is judged by monitoring and checking a detection result of the flue gas detection device 23, the flue gas inlet 13 is positioned below the ash removal system, the flue gas outlet 2 is positioned above the ash removal system, the top of the upper box body 1 is provided with a top cover 3, the lower surface of the top cover 3 is bonded with a foamed aluminum plate 4, the lower surface of the foamed aluminum plate 4 is bonded with a plurality of baffles 5, the baffles 5 are metal pieces, the baffles 5 have the functions of increasing the weight of the top cover 3 and transmitting noise to the foamed aluminum plate 4, the baffles 5 are of inverted regular prismatic table structures, the top surfaces of the baffles 5 are bonded with the foamed aluminum plate, the bottom surfaces of the baffles 5 face the flower plate 10, and the top, the number of the baffles 5 is nine, the nine baffles 5 are arranged in a matrix structure of three rows and three columns below the foamed aluminum plate 4, and the nine baffles 5 are uniformly distributed at the bottom of the foamed aluminum plate 4.

Example 3

The operation process of the ash cleaning system is introduced according to the structure, and the specific scheme is as follows:

step 1, a gas detection device 23 detects that the content of impurities in the flue gas is high, and judges that a dust removal filter bag 12 needs to be cleaned;

step 2, opening an air compressor to spray strong pressure air flow to an external pipe section of a spraying pipe 6, enabling the strong pressure air flow to reach proper air pressure and cleanliness after pressure transformation and filtration sequentially through a pressure transmitter 21, a pressure reducing valve 20 and an air filter 19, enabling the processed strong pressure air flow to enter the pipe section of the spraying pipe 6 positioned in a dust removal box body 16 and then to flow into an internal air spraying pipeline 18 and an external air spraying pipeline 9 in a shunting manner, controlling opening of a pneumatic valve 8 through a master controller 23, enabling the air flow to pass through a dust removal filter below a pattern plate 10, and spraying the strong air flow through a 12;

and 3, the airflow drives the dust remained on the dust-removing filter bag 12 to enter the dust hopper 14 at the bottom of the dust-removing box body 16, and then enters the dust-collecting bag from the dust outlet 15.

In the above steps, the strong pressure air flow drives the dust to collide with the dust filter bag 12 and the inner wall of the dust removing box 16 to generate noise, and the noise is reflected and transmitted to the top cover 3 and absorbed by the foamed aluminum plate 4 on the top cover 3.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A flue gas dust removal device of a power plant comprises a dust removal box body and is characterized in that an ash removal system is arranged in the dust removal box body, the deashing system includes the jetting pipe, jetting pipe below is equipped with the card, set up a plurality of filter bag holes in the card, a plurality of venturis are installed respectively to a plurality of filter bag hole tops, there is a filter bag hole at the interval between per two adjacent venturis, the below of installing the filter bag hole of venturi corresponds respectively and has hung the dust removal filter bag, be connected with inside jet gas pipeline between every venturi tube and the jetting pipe that is located the card top, install pneumatic valve on the inside jet gas pipeline, be connected with outside jet gas pipeline between the filter bag hole that lies in between two adjacent venturis in the card respectively and the jetting pipe, install pneumatic valve in every outside jet gas pipeline respectively, the card below is provided with the filter bag frame that is used for fixed dust removal filter bag.

2. The power plant flue gas dust removal equipment of claim 1, wherein the top of the dust removal box body is provided with an upper box body, the bottom of the dust removal box body is provided with an ash bucket, the outer part of the dust removal box body is provided with a flue gas inlet and a flue gas outlet, the flue gas inlet is positioned below the ash removal system, and the flue gas outlet is positioned above the ash removal system.

3. The power plant flue gas dust removal equipment of claim 2, wherein a top cover is arranged at the top of the upper box body, a foamed aluminum plate is bonded on the lower surface of the top cover, a plurality of baffles are bonded on the lower surface of the foamed aluminum plate, the baffles are of inverted regular prism structures, the top surfaces of the baffles are attached to the foamed aluminum plate, the bottom surfaces of the baffles face the pattern plate, and the top surface areas of the baffles are larger than the bottom surface areas of the baffles.

4. A power plant flue gas dust removal apparatus as claimed in claim 2, wherein a bracket is mounted to an exterior of the hopper, the bracket being a triangular bracket.

5. The power plant flue gas dust removal equipment as recited in claim 1, wherein a pipe section of the injection pipe located outside the dust removal box body is connected with an air injection pipe of an air compressor, a pressure transmitter, a pressure reducing valve and an air filter are sequentially installed in the pipe section outside the injection pipe, the pressure transmitter is close to an inlet end of the injection pipe, the positions of the inlet end of the injection pipe located on the pressure transmitter and the position of an outlet end of the air filter are respectively connected with two ends of a bypass pipeline in a crossing manner, and a stop valve is arranged in the bypass pipeline.

6. The power plant flue gas dust removal device of claim 1, wherein the filter bag frame comprises a frame body and a support column located in the middle of the frame body, the support column is horizontally arranged inside the dust removal box body, and two ends of the support column are respectively fixed on the side walls of two ends of the dust removal box body.

7. A power plant flue gas dust removal device according to claim 6, wherein the side walls of the dust removal tank body are provided with inspection doors, and the inspection doors are arranged at positions flush with the bottom of the filter bag frame.