A dust removal system for a boiler room of a thermal power plant

Abstract

The utility model discloses a dust removal system for boiler room of thermal power plant relates to thermal power plant production technical field, including dust exhaust rain pipe, rain pipe tail pipe, dust exhaust terminal equipment, first valve and second valve, and the top of dust exhaust rain pipe is used for being placed on the top surface of boiler room, and the top of dust exhaust rain pipe is equipped with rain outlet, and rain outlet is used for receiving the rainwater on the top surface of boiler room, and dust exhaust rain pipe is used for being placed in the outside of boiler room and being communicated or being cut off with the inside of boiler room, and the bottom of dust exhaust rain pipe can be communicated with rain pipe tail pipe and dust exhaust terminal equipment, and first valve is fixedly arranged on the top of dust exhaust rain pipe, and first valve is placed below rain outlet, and second valve is fixedly arranged on rain pipe tail pipe, the utility model discloses not only convenient to remove the dust in the inside of boiler room, but also save construction cost, and the function is rich, and the use is flexible.

Description

Technical Field

[0001] This utility model relates to the field of thermal power plant production technology, and in particular to a dust removal system for boiler rooms in thermal power plants. Background Technology

[0002] Due to the suspended structure (the boiler body is suspended from the top of the boiler room by a hanger) and the negative pressure design of the furnace (the internal pressure of the furnace is slightly lower than atmospheric pressure during boiler operation to prevent flue gas leakage), dust leakage is prone to occur during operation, resulting in a harsh working environment and safety hazards.

[0003] Traditional boiler room dust removal methods mostly rely on compressed air blowing or localized ventilation, which have the following problems: When manually blowing dust and debris from boiler room pipes and equipment through flexible hoses, heavier debris is blown to the ground and then swept away by a ground vacuum truck, while lighter dust floats in the air and eventually falls back onto the equipment or pipes, making it difficult to remove boiler room dust; it lacks flexibility, making it difficult to cover multiple areas of the boiler room, resulting in low dust removal efficiency; and the dust removal pipeline has a single function, leading to low resource utilization. Utility Model Content

[0004] The purpose of this utility model is to provide a dust removal system for boiler rooms in thermal power plants to solve the problems existing in the prior art. It is convenient for removing dust inside the boiler room, saves construction costs, has rich functions, and is flexible in use.

[0005] To achieve the above objectives, this utility model provides the following solution: This utility model provides a dust removal system for a boiler room in a thermal power plant, including a dust extraction and rain discharge pipe, a rain discharge tailpipe, a dust extraction terminal device, a first valve, and a second valve. The top end of the dust extraction and rain discharge pipe is placed on the top surface of the boiler room, and a rain discharge port is provided at the top end of the dust extraction and rain discharge pipe for collecting rainwater from the top surface of the boiler room. The dust extraction and rain discharge pipe is placed outside the boiler room and can be connected to or separated from the interior of the boiler room. The bottom end of the dust extraction and rain discharge pipe can be connected to the rain discharge tailpipe and the dust extraction terminal device. The first valve is fixedly installed on the top end of the dust extraction and rain discharge pipe and is located below the rain discharge port. The second valve is fixedly installed on the rain discharge tailpipe.

[0006] Preferably, it also includes several dust collection branch pipes and several dust collection valves. All the dust collection branch pipes are arranged sequentially from top to bottom below the first valve. The first end of the dust collection branch pipe is fixedly connected to and communicates with the dust collection and rain drain pipe. The second end of the dust collection branch pipe is used to be placed inside the boiler room and communicates with the inside of the boiler room. The dust collection valve corresponds to each dust collection branch pipe and is fixedly installed on the dust collection branch pipe.

[0007] Preferably, it also includes several suction hoses and several dust collection hoods. The dust collection hoods are placed inside the boiler room and communicate with the interior of the boiler room. The suction hoses, the dust collection hoods, and the suction branch pipes correspond one-to-one. One end of the suction hose is fixedly connected to and communicates with the dust collection hood, and the other end of the suction hose is fixedly connected to and communicates with the second end of the suction branch pipe.

[0008] Preferably, the dust collection hood, positioned at the top, is used to cover the top of the boiler.

[0009] Preferably, the dust extraction valve is a manual valve.

[0010] Preferably, both the first valve and the second valve are electric valves.

[0011] Preferably, the vacuuming terminal equipment is a vacuuming cart.

[0012] Preferably, it also includes a suction tailpipe, one end of which is fixedly connected and communicates with the bottom end of the suction and rain exhaust pipe, and the other end of which is fixedly provided with a quick connector, which can be fixedly connected and communicates with the air intake pipe of the suction terminal equipment.

[0013] Preferably, the dust extraction and rain drain pipe has a vertical section and an inclined guide section. The top of the vertical section has the rain drain outlet. The vertical section is used to connect with or separate the interior of the boiler room. The top of the inclined guide section is connected to the bottom of the vertical section. The bottom of the inclined guide section is lower than the top of the inclined guide section. The bottom of the inclined guide section can connect with the rain drain tailpipe and the dust extraction terminal equipment. The first valve is fixedly installed on the top of the vertical section.

[0014] Preferably, the dust extraction and rain exhaust pipe is a galvanized steel pipe with a diameter of 30cm.

[0015] The present invention achieves the following technical advantages over the prior art: This utility model provides a dust removal system for boiler rooms in thermal power plants. The top of a dust extraction and rain discharge pipe is positioned on the top surface of the boiler room. A rain discharge port is located at the top of the pipe to collect rainwater from the boiler room roof. During normal use, the dust extraction and rain discharge pipe is isolated from the boiler room interior, and both the first and second valves are opened, allowing rainwater from the boiler room roof to drain outside the boiler room via the rain discharge port, the dust extraction and rain discharge pipe, and the rain discharge tailpipe. When removing dust from inside the boiler room, the dust extraction and rain discharge pipe is connected to the boiler room interior, and both the first and second valves are closed, connecting the dust extraction terminal to the boiler room interior. The dust inside the boiler room is then extracted and removed through the dust extraction terminal. This utility model provides a dust removal system for boiler rooms in thermal power plants that facilitates dust removal from inside the boiler room and also allows for rainwater drainage from the boiler room roof. It integrates daily rainwater drainage and emergency dust removal, saving construction costs, offering rich functionality, and flexible use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall dust removal system for a thermal power plant boiler room provided by this utility model; Figure 2 A schematic diagram of the dust extraction and rain discharge pipe in the dust removal system of a thermal power plant boiler room provided by this utility model; In the diagram: 1-Dust suction and rain drain pipe, 2-Rain drain tail pipe, 3-Dust suction terminal equipment, 4-First valve, 5-Second valve, 6-Boiler, 7-Boiler room, 8-Dust suction branch pipe, 9-Dust suction valve, 10-Dust suction hose, 11-Dust suction tail pipe, 12-Vertical section, 13-Inclined guide section, 14-Quick connector, 15-Air preheater, 16-Burner. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The purpose of this utility model is to provide a dust removal system for boiler rooms in thermal power plants to solve the problems existing in the prior art. It is convenient for removing dust inside the boiler room, saves construction costs, has rich functions, and is flexible in use.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 2 As shown, this utility model provides a dust removal system for a boiler room in a thermal power plant, including a dust extraction and rain discharge pipe 1, a rain discharge tail pipe 2, a dust extraction terminal device 3, a first valve 4, and a second valve 5. The top end of the dust extraction and rain discharge pipe 1 is placed on the top surface of the boiler room 7, and a rain discharge port is opened at the top end of the dust extraction and rain discharge pipe 1 to collect rainwater on the top surface of the boiler room 7. The dust extraction and rain discharge pipe 1 is placed outside the boiler room 7 and is connected to or separated from the interior of the boiler room 7. The bottom end of the dust extraction and rain discharge pipe 1 can be connected to the rain discharge tail pipe 2 and the dust extraction terminal device 3. The first valve 4 is fixedly installed on the top end of the dust extraction and rain discharge pipe 1 and is located below the rain discharge port. The second valve 5 is fixedly installed on the rain discharge tail pipe 2.

[0022] The dust removal system for boiler rooms in thermal power plants provided by this utility model includes a dust extraction and rain discharge pipe 1, the top of which is positioned on the top surface of boiler room 7. The top of the dust extraction and rain discharge pipe 1 has a rain discharge port for collecting rainwater from the top surface of boiler room 7. During normal use, the dust extraction and rain discharge pipe 1 is isolated from the interior of boiler room 7, and both the first valve 4 and the second valve 5 are opened, allowing rainwater from the top surface of boiler room 7 to be discharged outside boiler room 7 via the rain discharge port, the dust extraction and rain discharge pipe 1, and the rain discharge tail pipe 2. When removing dust from inside boiler room 7, the dust extraction and rain discharge pipe 1 is connected to the interior of boiler room 7, and both the first valve 4 and the second valve 5 are closed, connecting the dust extraction terminal to the interior of boiler room 7. The dust inside boiler room 7 is then extracted and removed through the dust extraction terminal. The dust removal system for boiler rooms in thermal power plants provided by this utility model facilitates the removal of dust from inside boiler room 7 and also allows for rainwater drainage from the top surface of boiler room 7. It integrates daily rainwater drainage and emergency dust removal, saving construction costs, offering rich functionality, and flexible use.

[0023] As a preferred embodiment of the present invention, the dust removal system for boiler rooms in thermal power plants provided by the present invention includes a pressure sensor installed in the boiler room 7 to detect the pressure inside the boiler room 7, and adjusting the power of the dust collection terminal device 3 when the negative pressure inside the boiler room 7 is insufficient.

[0024] As a preferred embodiment of this utility model, the dust removal system for boiler rooms in thermal power plants provided by this utility model also includes several dust suction branch pipes 8 and several dust suction valves 9. All dust suction branch pipes 8 are arranged sequentially from top to bottom below the first valve 4. The first end of the dust suction branch pipe 8 is fixedly connected to and communicates with the dust suction and rain discharge pipe 1. The second end of the dust suction branch pipe 8 is placed inside the boiler room 7 and communicates with the interior of the boiler room 7. The dust suction valves 9 correspond one-to-one with the dust suction branch pipes 8 and are fixedly installed on the dust suction branch pipes 8. During daily use, the dust suction valves 9 are closed, and when dust removal is performed inside the boiler room 7, the dust suction valves 9 are opened, making it convenient to use. Each dust suction branch pipe 8 in the dust removal system for boiler rooms in thermal power plants provided by this utility model is respectively set at different heights and different floors inside the boiler room 7 to comprehensively remove dust inside the boiler room 7, and the number of dust suction branch pipes 8 can be adjusted according to the size of the boiler room 7. The first end of the dust suction branch pipe 8 is connected to the dust suction and rain discharge pipe 1 through a T-joint.

[0025] As a preferred embodiment of this utility model, the dust removal system for a boiler room in a thermal power plant provided by this utility model also includes several suction hoses 10 and several dust collection hoods. The dust collection hoods are placed inside the boiler room 7 and communicate with the interior of the boiler room 7. The suction hoses 10, dust collection hoods, and suction branch pipes 8 correspond one-to-one. One end of the suction hose 10 is fixedly connected to and communicates with the dust collection hood, and the other end of the suction hose 10 is fixedly connected to and communicates with the second end of the suction branch pipe 8, so as to facilitate flexible arrangement of the dust collection hoods. The dust collection hoods are made of high-temperature resistant materials (such as stainless steel) to adapt to the high-temperature environment of the boiler 6. The second end of the suction branch pipe 8 can be extended to areas prone to dust leakage, such as the air preheater 15 and the burner 16, so as to facilitate nearby connection of the suction hoses 10.

[0026] In a preferred embodiment of this utility model, the dust collection hood placed at the top is used to cover the top of the boiler 6. The dust concentration near the boiler 6 is measured by a dust concentration meter so as to remove high-concentration dust in a targeted manner.

[0027] As a preferred embodiment of this utility model, the dust suction valve 9 is a manual valve, which is convenient for long-term use.

[0028] In a preferred embodiment of this utility model, both the first valve 4 and the second valve 5 are electric valves, which are easy to control.

[0029] As a preferred embodiment of this utility model, the vacuum terminal device 3 is a vacuum cart, which is convenient and flexible to use.

[0030] As a preferred embodiment of the present invention, the dust removal system for boiler rooms in thermal power plants provided by the present invention also includes a dust suction tailpipe 11. One end of the dust suction tailpipe 11 is fixedly connected to and communicates with the bottom end of the dust suction and rain discharge pipe 1. The other end of the dust suction tailpipe 11 is fixedly provided with a quick connector 14. The quick connector 14 can be fixedly connected to and communicates with the air inlet pipe of the dust suction terminal equipment 3, which facilitates assembly and disassembly.

[0031] In a preferred embodiment of this utility model, the dust extraction and rain discharge pipe 1 has a vertical section 12 and an inclined guide section 13. The top of the vertical section 12 is provided with a rain discharge port. The vertical section 12 is used to connect with or separate the interior of the boiler room 7. The top of the inclined guide section 13 is connected to the bottom of the vertical section 12. The bottom of the inclined guide section 13 is lower than the top of the inclined guide section 13. The bottom of the inclined guide section 13 can be connected to the rain discharge tail pipe 2 and the dust extraction terminal equipment 3. The first valve 4 is fixedly installed on the top of the vertical section 12 to facilitate the introduction of rainwater or dust into the inclined guide section 13 and discharge.

[0032] As a preferred embodiment of this utility model, the dust extraction and rain discharge pipe 1 is a galvanized steel pipe with a diameter of 30cm, which is corrosion resistant and has a long service life.

[0033] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A dust removal system for a boiler room in a thermal power plant, characterized in that: The system includes a dust extraction and rain discharge pipe, a rain discharge tailpipe, a dust extraction terminal device, a first valve, and a second valve. The top end of the dust extraction and rain discharge pipe is designed to be placed on the roof of the boiler room. A rain discharge outlet is provided at the top end of the dust extraction and rain discharge pipe to collect rainwater from the roof of the boiler room. The dust extraction and rain discharge pipe is designed to be placed outside the boiler room and to connect with or separate from the interior of the boiler room. The bottom end of the dust extraction and rain discharge pipe can connect with the rain discharge tailpipe and the dust extraction terminal device. The first valve is fixedly installed on the top end of the dust extraction and rain discharge pipe and is located below the rain discharge outlet. The second valve is fixedly installed on the rain discharge tailpipe.

2. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: It also includes several dust collection branch pipes and several dust collection valves. All the dust collection branch pipes are arranged from top to bottom below the first valve. The first end of the dust collection branch pipe is fixedly connected to and communicates with the dust collection and rain drain pipe. The second end of the dust collection branch pipe is used to be placed inside the boiler room and communicates with the inside of the boiler room. The dust collection valve corresponds to the dust collection branch pipe one by one and the dust collection valve is fixedly installed on the dust collection branch pipe.

3. The dust removal system for boiler rooms in thermal power plants according to claim 2, characterized in that: It also includes several suction hoses and several dust collection hoods. The dust collection hoods are used to be placed inside the boiler room and connected to the inside of the boiler room. The suction hoses, the dust collection hoods and the suction branch pipes correspond one-to-one. One end of the suction hose is fixedly connected to and connected to the dust collection hood, and the other end of the suction hose is fixedly connected to and connected to the second end of the suction branch pipe.

4. The dust removal system for boiler rooms in thermal power plants according to claim 3, characterized in that: The dust collection hood, positioned at the top, is used to cover the top of the boiler.

5. The dust removal system for boiler rooms in thermal power plants according to claim 2, characterized in that: The vacuum valve is a manual valve.

6. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: Both the first valve and the second valve are electric valves.

7. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: The vacuuming terminal equipment is a vacuuming cart.

8. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: It also includes a suction tailpipe, one end of which is fixedly connected and communicates with the bottom end of the suction and rain exhaust pipe, and the other end of which is fixedly provided with a quick connector, which can be fixedly connected and communicates with the air intake pipe of the suction terminal equipment.

9. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: The dust extraction and rain discharge pipe has a vertical section and an inclined guide section. The top of the vertical section has the rain discharge port. The vertical section is used to connect with or separate the interior of the boiler room. The top of the inclined guide section is connected to the bottom of the vertical section. The bottom of the inclined guide section is lower than the top of the inclined guide section. The bottom of the inclined guide section can connect with the rain discharge tailpipe and the dust extraction terminal equipment. The first valve is fixedly installed on the top of the vertical section.

10. The dust removal system for boiler rooms in thermal power plants according to claim 1, characterized in that: The dust extraction and rain exhaust pipe is a galvanized steel pipe with a diameter of 30cm.

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