CN210601597U

CN210601597U - Circulating fluidized bed boiler

Info

Publication number: CN210601597U
Application number: CN201921260071.XU
Authority: CN
Inventors: 李村丽; 杨志刚
Original assignee: Henan Yuyuan Boiler Machinery Co ltd
Current assignee: Henan Yuyuan Boiler Machinery Co ltd
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-05-22
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a circulating fluidized bed boiler, which comprises a combustion chamber, the upper surface center and the side lower end of the combustion chamber are both provided with an air inlet, the upper end air inlet lower end of the combustion chamber is provided with an outer toothed ring, gas can be pumped into a gas heater through an air pump, the gas can be heated through the gas heater, the heated gas enters the combustion chamber, a motor can drive an air diffusing pipe to rotate, the interior of the combustion chamber can form cyclone through the air diffusing pipe, so that the combustion is more sufficient, the interior of a fly ash separator can form cyclone through the rotation of a fan blade, fly ash can be blown into the interior of the combustion chamber again through a fly ash pushing pipe, the overheating efficiency is higher through a spiral heating water pipe, tail gas can be treated and filtered through a filter plate, the circulating fluidized bed boiler has simple structure, not only the circulating effect is better, and the tail gas can be filtered, thereby providing convenience for people.

Description

Circulating fluidized bed boiler

Technical Field

The utility model relates to a fluidized bed boiler technical field specifically is a circulating fluidized bed boiler.

Background

The circulating fluidized bed boiler is a high-efficient low pollution clean combustion apparatus, compared with pulverized coal fired boiler have the characteristics such as the combustion pollutant yield is few, fuel strong adaptability, especially have obvious advantage in the aspect of inferior coal fuel burning such as coal slime, gangue, consequently the wide application is in fields such as power plant boiler, industrial boiler and waste disposal utilization, especially as the heat supply of coal chemical industry enterprise's oneself, steam supply source uses, but current circulating fluidized bed boiler, gas circulation is little, do not handle tail gas, can not satisfy people's demand.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a circulating fluidized bed boiler, simple structure not only makes the circulation effect better, can provide convenience for people to tail gas filtration treatment moreover, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a circulating fluidized bed boiler comprises a combustion chamber, wherein an air inlet is formed in the center of the upper surface and the lower end of the side surface of the combustion chamber, an outer toothed ring is arranged at the lower end of the air inlet in the upper end of the combustion chamber, an air diffusing pipe is arranged on the lower surface of the outer toothed ring, air diffusing holes are uniformly formed in the side surface of the air diffusing pipe, a motor is arranged on the upper surface of the combustion chamber, a gear meshed with the outer toothed ring is arranged at the end part of an output shaft of the motor, an air outlet in the upper end of one side of the combustion chamber is connected with an air inlet in one side of a fly ash separator through a guide pipe, an air outlet in the upper end of the fly ash separator is connected with an inlet of a water heating shell through a guide pipe, the lower end of the fly ash separator is connected with one side of the combustion chamber through a fly ash pushing pipe, a spiral heating water pipe is arranged inside the, the delivery port of suction pump passes through the pipe and is connected with the water inlet of heliciform heating water pipe, and the lower extreme air outlet of water heating shell passes through the air intake connection of pipe and gas heater, and one side air inlet of gas heater passes through the pipe and is connected with the gas outlet of aspiration pump, and the opposite side gas outlet of gas heater is connected with the cross pipe, and the other three-terminal of cross pipe is connected with two air inlets of combustion chamber and one side air inlet of flying dust propelling movement pipe respectively, suction pump, aspiration pump and motor pass through external switch and external power source's output electricity and are connected.

As the utility model discloses a preferred technical scheme, gas heater's lower extreme air outlet has filter housing through pipe connection, and filter housing's inside is equipped with the filter, and the filter is including connecting rack, active carbon adsorption layer and filtering cotton.

As an optimal technical scheme of the utility model, the gas outlet inboard of combustion chamber is connected with the minor axis through the support frame, and the lower extreme of minor axis has the flabellum through bolted connection.

As an optimized technical scheme of the utility model, the lower extreme of combustion chamber is the toper structure to the lower extreme of combustion chamber is equipped with the coarse ash export.

As a preferred technical scheme of the utility model, the number of heliciform heating water pipe is no less than three, the upper and lower evenly distributed of three heliciform heating water pipe to three heliciform heating water pipe establishes ties mutually.

Compared with the prior art, the beneficial effects of the utility model are that: the air pump is arranged on the circulating fluidized bed boiler, the gas can be pumped to the inside of the gas heater through the air pump, the gas can be heated through the gas heater, the heated gas enters the inside of the combustion chamber, the air diffusing pipe can be driven to rotate through the motor, the inside of the combustion chamber can form a cyclone when passing through the air diffusing pipe, the combustion is more sufficient, the inside of the fly ash separator can form the cyclone through the rotation of the fan blades, the fly ash can be blown into the inside of the combustion chamber again through the fly ash push pipe, the overheating efficiency is higher through the spiral heating water pipe, the tail gas can be treated and filtered through the filter plate, the circulating fluidized bed boiler is simple in structure, the circulating effect is better, the tail gas can be filtered, and convenience is provided for people.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises an outer toothed ring 1, a gas dispersing pipe 2, a combustion chamber 3, a four-way pipe 4, an air pump 5, a fly ash pushing pipe 6, a filtering shell 7, a filtering plate 8, a gas heater 9, a water pump 10, a water tank 11, a spiral heating water pipe 12, a fly ash separator 13, fan blades 14, a gear 15, a motor 16 and a water heating shell 17.

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.

Referring to fig. 1, the present invention provides a technical solution: a circulating fluidized bed boiler comprises a combustion chamber 3, the upper surface center and the side lower end of the combustion chamber 3 are provided with an air inlet, the upper end air inlet lower end of the combustion chamber 3 is provided with an outer toothed ring 1, the lower surface of the outer toothed ring 1 is provided with an air diffusing pipe 2, the side of the air diffusing pipe 2 is uniformly provided with air diffusing holes, the upper surface of the combustion chamber 3 is provided with a motor 16, the end part of an output shaft of the motor 16 is provided with a gear 15 which is meshed with the outer toothed ring 1, an upper end air outlet at one side of the combustion chamber 3 is connected with an air inlet at one side of a fly ash separator 13 through a conduit, an upper end air outlet of the fly ash separator 13 is connected with an inlet of a water heating shell 17 through a conduit, the lower end of the fly ash separator 13 is connected with one side of the combustion chamber 3 through a fly ash pushing pipe 6, a spiral heating water pipe 12 is arranged, the water outlet at the lower end of the water tank 11 is connected with the water inlet of the water pump 10 through a conduit, the water outlet of the water pump 10 is connected with the water inlet of the spiral heating water pipe 12 through a conduit, the air outlet at the lower end of the water heating shell 17 is connected with the air inlet of the gas heater 9 through a conduit, the gas heater 9 is the prior art, the spiral heating pipe is arranged in the circular shell, the air inlet at one side of the gas heater 9 is connected with the air outlet of the air pump 5 through a conduit, the air outlet at the other side of the gas heater 9 is connected with the four-way conduit 4, the other three ends of the four-way conduit 4 are respectively connected with the two air inlets of the combustion chamber 3 and the air inlet at one side of the fly ash pushing pipe 6, the gas can be pumped into the gas heater 9 through the air pump 5, the air diffuser 2 can be driven to rotate by the motor 16, the inside of the combustion chamber 3 can form cyclone when passing through the air diffuser 2, so that the combustion is more sufficient, the inside of the fly ash separator 13 can form cyclone when the fan blades 14 rotate, the fly ash can be blown into the inside of the combustion chamber 3 again by the fly ash pushing pipe 6, the overheating efficiency is higher by the spiral heating water pipe 12, the water suction pump 10, the air suction pump 5 and the motor 16 are electrically connected with the output end of an external power supply through an external switch, the lower end air outlet of the gas heater 9 is connected with the filter housing 7 through a conduit, the filter plate 8 is arranged inside the filter housing 7, the filter plate 8 comprises a connecting net rack, an active carbon adsorption layer and filter cotton, the gas can be filtered by the filter plate 8, so as to treat the tail gas, the inner side of the air outlet of the, the lower extreme of minor axis has flabellum 14 through bolted connection, rotate through flabellum 14 and can rotate the inside formation cyclone that can make fly ash separator 13, the lower extreme of combustion chamber 3 is the toper structure, and the lower extreme of combustion chamber 3 is equipped with thick ash export, can derive the thick ash in combustion chamber 3 through thick ash export, the number of heliciform heating water pipe 12 is no less than three, the upper and lower evenly distributed of three heliciform heating water pipe 12, and three heliciform heating water pipe 12 is established ties mutually, it is higher to make the super-heating efficiency through three heliciform heating water pipe 12, this circulating fluidized bed boiler simple structure, not only make the circulation effect better, and can be to tail gas filtration treatment, make things convenient for people to provide.

When in use: can extract gas to gas heater 9's inside through aspiration pump 5, can heat gas through gas heater 9, gas after the heating enters into the inside of combustion chamber 3, can drive air diffuser 2 through motor 16 and rotate, the inside of combustion chamber 3 forms the cyclone when can through air diffuser 2, make the burning more abundant, rotate the inside that can make flying dust separator 13 through flabellum 14 and form the cyclone, can blow in the inside of combustion chamber 3 again with the flying dust through flying dust propelling movement pipe 6, it is higher to make the super-heating efficiency through heliciform heated water pipe 12, can handle the filtration to tail gas through filter 8, with this to tail gas and handle.

The utility model discloses an aspiration pump 5 can extract gas to gas heater 9's inside, can heat gas through gas heater 9, gas after the heating enters into the inside of combustion chamber 3, can drive the gas diffusion pipe 2 through motor 16 and rotate, the inside formation cyclone of combustion chamber 3 when can through gas diffusion pipe 2, make the burning more abundant, rotate the inside formation cyclone that can make flying dust separator 13 through flabellum 14, can blow in the inside of combustion chamber 3 again with the flying dust through flying dust propelling movement pipe 6, it is higher to make the super-heating efficiency through heliciform heating tube 12, can handle tail gas through filter 8 and filter, this circulating fluidized bed boiler simple structure, not only make the circulation effect better, and can be to tail gas filtration, it is convenient to provide people.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A circulating fluidized bed boiler comprising a combustion chamber (3), characterized in that: the upper surface center and the side lower end of the combustion chamber (3) are respectively provided with an air inlet, the lower end of the upper end air inlet of the combustion chamber (3) is provided with an outer toothed ring (1), the lower surface of the outer toothed ring (1) is provided with an air diffusing pipe (2), the side surface of the air diffusing pipe (2) is uniformly provided with air diffusing holes, the upper surface of the combustion chamber (3) is provided with a motor (16), the end part of an output shaft of the motor (16) is provided with a gear (15) which is meshed with the outer toothed ring (1), the upper end air outlet of one side of the combustion chamber (3) is connected with one side air inlet of a fly ash separator (13) through a conduit, the upper end air outlet of the fly ash separator (13) is connected with the inlet of a water heating shell (17) through a conduit, the lower end of the fly ash separator (13) is connected with one side of the combustion chamber (3) through a fly ash pushing pipe (6), the, the outlet of the spiral heating water pipe (12) is connected with the water inlet at the upper end of the water tank (11) through a conduit, the lower end water outlet of the water tank (11) is connected with the water inlet of the water suction pump (10) through a conduit, the water outlet of the water suction pump (10) is connected with the water inlet of the spiral heating water pipe (12) through a conduit, the lower end air outlet of the water heating shell (17) is connected with the air inlet of the gas heater (9) through a conduit, the air inlet at one side of the gas heater (9) is connected with the air outlet of the air suction pump (5) through a conduit, the air outlet at the other side of the gas heater (9) is connected with a four-way conduit (4), the other three ends of the four-way conduit (4) are respectively connected with two air inlets of the combustion chamber (3) and the air, the water suction pump (10), the air suction pump (5) and the motor (16) are electrically connected with the output end of an external power supply through an external switch.

2. A circulating fluidized bed boiler according to claim 1, characterized in that: the lower extreme air outlet of gas heater (9) has filter housing (7) through pipe connection, and the inside of filter housing (7) is equipped with filter (8), and filter (8) are including connecting rack, active carbon adsorption layer and filtration cotton.

3. A circulating fluidized bed boiler according to claim 1, characterized in that: the inner side of an air outlet of the combustion chamber (3) is connected with a short shaft through a support frame, and the lower end of the short shaft is connected with a fan blade (14) through a bolt.

4. A circulating fluidized bed boiler according to claim 1, characterized in that: the lower end of the combustion chamber (3) is of a conical structure, and a coarse ash outlet is formed in the lower end of the combustion chamber (3).

5. A circulating fluidized bed boiler according to claim 1, characterized in that: the number of the spiral heating water pipes (12) is not less than three, the three spiral heating water pipes (12) are uniformly distributed from top to bottom, and the three spiral heating water pipes (12) are connected in series.