Energy-saving and consumption-reducing system for boiler and using method thereof

Abstract

The invention discloses a boiler energy-saving and consumption-reducing system and a using method thereof, and relates to the technical field of boilers, the boiler energy-saving and consumption-reducing system comprises a boiler body, a dryer and a fuel bin, the boiler body is connected with the dryer through a feeding pipe, and the dryer is connected with the fuel bin through a fuel ingress pipe. When the boiler energy-saving and consumption-reducing system and the using method thereof are used, through work of the flue gas heat exchange assembly, the waste residue treatment pond and the waste water treatment pond, flue gas, waste water and waste residues generated when the boiler body works are recycled, then resource recycling is achieved, energy consumption is effectively reduced, the energy utilization efficiency is improved, and the energy-saving and consumption-reducing effect is achieved. By establishing an energy management center, the energy consumption of the boiler is monitored and analyzed in real time, data support is provided for energy conservation and consumption reduction, and therefore when the boiler energy conservation and consumption reduction system is used, the functions of automatic adjustment and operation optimization are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, and in particular to a boiler energy-saving and consumption-reducing system and a use method thereof. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The hot water or steam generated in the boiler can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. The boiler energy-saving and consumption-reduction system is a comprehensive system that aims to reduce the energy consumption of the boiler and improve energy utilization efficiency by optimizing the operation of the boiler, improving the equipment structure and adopting new technologies.

[0003] However, during the use of existing steam boilers, the water content of the fuel used is high, the heat loss is large, and the thermal efficiency of the boiler is low. The upper and lower limits of the water flow temperature are set by on-site staff, and the boiler is opened and closed by a temperature control instrument. In addition, important data such as pressure, temperature and flow in the boiler are recorded manually. As a result, when the boiler is used for daily heating of other facilities, it is often necessary for the staff to make adjustments based on previous experience. There is no quantitative scientific data as a basis, which makes it difficult for the heating system to achieve the dual indicators of warmth preservation and energy saving at the same time, thus affecting the use of the boiler heating system. Summary of the invention

[0004] The object of the present invention is to provide a boiler energy-saving and consumption-reducing system and a method of using the same to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a boiler energy-saving and consumption-reducing system and a method of using the same, comprising a boiler body, a dryer and a fuel bin, wherein the boiler body is connected to the dryer through a feed pipe, and the dryer is connected to the fuel bin through a fuel inlet pipe, the boiler body is connected to a water treatment component through an input pipe, and the boiler body is connected to an energy storage water tank through an output pipe, and the water treatment component is connected to a water quality monitoring component through a sampling pipe, the boiler body is connected to a flue gas heat exchange component through a smoke exhaust pipe, and the output end of the flue gas heat exchange component is connected to a desulfurization tower, the boiler body is connected to a waste residue treatment tank through a waste residue outlet pipe, and the boiler body is connected to a wastewater treatment tank through a wastewater outlet pipe.

[0006] Preferably, the flue gas heat exchange component is connected to the boiler body through a reflux pipe, and a mixing component is provided inside the waste residue treatment tank.

[0007] Preferably, a wastewater purification component and a heat exchanger are provided inside the wastewater treatment tank, and a timer is provided inside the dryer.

[0008] Preferably, the furnace of the boiler body and the smoke exhaust pipe are both installed with temperature sensors, and a pressure sensor is installed inside the boiler body.

[0009] Preferably, the water inlet pipe, the outlet pipe and the smoke exhaust pipe of the boiler body are all installed with flow sensors, and the smoke exhaust pipe of the boiler body is installed with a smoke composition analyzer.

[0010] Preferably, the temperature sensor, pressure sensor, flow sensor and flue gas composition analyzer are all connected to the energy management center via a wireless network.

[0011] Preferably, the receiving end of the energy management center is connected to a data processing module, and a fault diagnosis module is installed inside the energy management center.

[0012] Preferably, the fault diagnosis module is connected to the early warning module via a wire and a wireless network, and the energy management center is connected to a remote communication module via a wire.

[0013] Preferably, the input end of the energy management center is connected to a photovoltaic power station, and the energy management center includes a central control room and a cloud server.

[0014] A method for energy-saving use of a boiler comprises the following steps: S1. Raw material preparation: first introduce the water flow and the fuel in the fuel tank into the boiler body; S2, water heating: the water is heated to a specified temperature by the boiler body, and the heated water is introduced into the energy storage tank for storage; S3. Energy saving and consumption reduction: recover the sensible heat and latent heat in the flue gas through the flue gas heat exchange component, reuse the ash produced by boiler combustion through the waste residue treatment pool, and treat the waste water produced by the boiler through the waste water treatment pool; S4. Intelligent monitoring: The boiler operation data is collected in real time through sensors such as temperature sensors, pressure sensors, flow sensors and flue gas composition analyzers. The collected data is then processed and analyzed by the energy management center to extract useful information to guide the optimization of boiler operation. S5. Heating water flow export: The water flow in the energy storage tank is introduced into the hot water network through a hot water pump for use by other facilities.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the boiler energy-saving and consumption-reducing system and its use method are used, the flue gas, waste water and waste slag generated when the boiler body is working are reused through the operation of the flue gas heat exchange component, the waste residue treatment pool and the waste water treatment pool, thereby realizing the recycling of resources, effectively reducing energy consumption, and improving energy utilization efficiency, thereby improving the thermal efficiency of the boiler and reducing energy consumption, and by establishing an energy management center, the energy consumption of the boiler is monitored and analyzed in real time, providing data support for energy saving and consumption reduction, so that when the boiler energy-saving and consumption-reducing system is used, it has the function of automatic adjustment and optimized operation.

[0016] 1. During the use of the boiler energy-saving and consumption-reducing system, the moisture in the fuel is discharged through the dryer before combustion, and the impurities in the water are removed by the water flow through the water treatment component, thereby improving the quality of boiler water; and the flue gas heat exchange component is responsible for transferring the heat in the flue gas to the water flow for heating, thereby recovering the heat in the flue gas, and making building materials from the ash through the waste residue treatment pool, thereby realizing resource recycling, and treating the waste water through the wastewater treatment pool so that the waste water can be used for boiler flushing and circulating cooling of the power plant, so that the flue gas, waste water and waste residue generated when the boiler body is working are reused, thereby realizing resource recycling, effectively reducing energy consumption, and improving energy utilization efficiency, thereby improving the thermal efficiency of the boiler and reducing energy consumption; 2. During the use of the boiler energy-saving and consumption-reduction system, in order to achieve automatic adjustment and optimized operation of the boiler, the boiler operation data is first collected in real time through temperature sensors, pressure sensors, flow sensors and flue gas composition analyzers, and then the collected data is transmitted to the energy management center. After that, the energy management center extracts useful information through the data processing module to guide the optimization of boiler operation, and then monitors and analyzes the energy consumption of the boiler in real time, providing data support for energy saving and consumption reduction, thereby achieving automatic adjustment and optimized operation of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the flow structure of the boiler energy-saving and consumption-reducing system of the present invention.

[0018] In the figure: 1. Boiler body; 2. Dryer; 3. Fuel bin; 4. Water treatment component; 5. Energy storage tank; 6. Water quality monitoring component; 7. Hot water pipe network; 8. Flue gas heat exchange component; 9. Desulfurization tower; 10. Waste residue treatment pool; 11. Wastewater treatment pool; 12. Temperature sensor; 13. Pressure sensor; 14. Flow sensor; 15. Flue gas composition analyzer; 16. Energy management center; 17. Data processing module; 18. Fault diagnosis module; 19. Early warning module; 20. Remote communication module; 21. Photovoltaic power station. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 The present invention provides a technical solution: a boiler energy-saving and consumption-reducing system and a method of using the same, comprising a boiler body 1, a dryer 2 and a fuel bunker 3, the boiler body 1 being connected to the dryer 2 through a feed pipe, and the dryer 2 being connected to the fuel bunker 3 through a fuel introduction pipe, the boiler body 1 being connected to a water treatment component 4 through an input pipe, and the boiler body 1 being connected to an energy storage water tank 5 through an output pipe, and the water treatment component 4 being connected to a water quality monitoring component 6 through a sampling pipe, the boiler body 1 being connected to a flue gas heat exchange component 8 through a smoke exhaust pipe, and the output end of the flue gas heat exchange component 8 being connected to a desulfurization tower 9, the boiler body 1 being connected to a waste residue treatment pool 10 through a waste residue outlet pipe, and the boiler body 1 being connected to a wastewater treatment pool 11 through a wastewater outlet pipe; the flue gas heat exchange component 8 being connected to the boiler body 1 through a reflux pipe, and the waste residue treatment pool 10 is provided with a mixing component inside; the wastewater treatment tank 11 is provided with a wastewater purification component and a heat exchanger, and the dryer 2 is provided with a timer inside; the indicators of the water quality monitoring component 6 include pH value, dissolved oxygen, chloride ion, total hardness, oil content and turbidity; the dryer 2 needs to strictly control the drying temperature and time through the timer to avoid damage to the coal and boiler equipment; the flue gas heat exchange component 8 is responsible for transferring the heat in the flue gas to the water flow for heating; the waste residue treatment tank 10 mixes the gasified ash with lime, gypsum and cement through the internal mixing component to produce building materials such as concrete and gray bricks; the wastewater treatment tank 11 recovers the heat energy in the wastewater through the heat exchanger, and the wastewater treatment of the wastewater treatment tank 11 includes pretreatment, biochemical treatment, membrane separation and deep treatment steps; the outer wall of the energy storage water tank 5 is provided with an insulation layer.

[0021] In specific implementation, during the use of the boiler energy-saving and consumption-reducing system, the fuel introduced into the boiler body 1 by the fuel bin 3 is dried by the dryer 2, and the water in the fuel is discharged before combustion. Since the evaporation of water during combustion requires a large amount of heat, if the water in the fuel is not volatilized in advance, it will lead to incomplete combustion of the boiler and insufficient temperature, thereby reducing the calorific value of the fuel. The drying temperature and time of the dryer 2 are strictly controlled by the timer, so that the water in the fuel can be evaporated before combustion, thereby increasing the calorific value of the fuel. Then the water flows through the water treatment component 4 and enters the boiler body 1. At this time, the water treatment component 4 removes impurities, suspended matter, organic matter, heavy metal ions and other harmful substances in the water, thereby improving the quality of boiler water. The water quality monitoring component 6 detects various components and indicators in the boiler water to ensure that the water quality meets the requirements of boiler operation and prevents boiler failures and safety accidents caused by water quality problems. After the fuel is burned to heat the water flow to a specified temperature, the water flow is introduced into the energy storage tank 5 for storage, and then the water flow is guided to other facilities for heating through the hot water pipe network 7; The flue gas generated when the boiler body 1 is working is introduced into the flue gas heat exchange component 8 for heat exchange. At this time, the flue gas heat exchange component 8 is responsible for transferring the heat in the flue gas to the water flow for heating, and then recovering the heat in the flue gas for preheating the air and the water flow, thereby improving the energy utilization efficiency. After that, the preheated water flow can also be returned to the boiler body 1, thereby reducing the energy required for the boiler body 1 to heat the water flow next time, thereby improving the energy utilization efficiency. The flue gas after heat exchange is guided to the desulfurization tower 9, and the flue gas is desulfurized by the desulfurization tower 9 before being discharged into the air, thereby reducing the pollution of the flue gas to the environment; The ash produced by boiler combustion is introduced into the slag treatment pool 10 through the slag outlet pipe. At this time, the gasified ash is mixed with lime, gypsum and cement through the mixing component inside the slag treatment pool 10 to produce building materials such as concrete and gray bricks, thereby realizing resource recycling. The wastewater is guided to the wastewater treatment pool 11 through the wastewater outlet pipe. Then, the heavy metal ions and residual organic matter therein are removed through the purification component inside the wastewater treatment pool 11 to ensure that the wastewater meets the reuse standard. After that, the wastewater can be used for boiler flushing, fire extinguishing and other processes to reduce the demand for clean water, and can also be used in the circulating cooling system of the power plant to save water resources; This ensures that the fuel is fully burned, and the flue gas, waste water and waste residue generated when the boiler body 1 is working are reused, thereby realizing the recycling of resources, effectively reducing energy consumption, improving energy utilization efficiency, and ultimately improving the thermal efficiency of the boiler and reducing energy consumption.

[0022] See also Figure 1It can be seen that the furnace and the exhaust pipe of the boiler body 1 are both equipped with a temperature sensor 12, and a pressure sensor 13 is installed inside the boiler body 1; the water inlet pipe, the output pipe and the exhaust pipe of the boiler body 1 are all equipped with a flow sensor 14, and the exhaust pipe of the boiler body 1 is equipped with a flue gas component analyzer 15; the temperature sensor 12, the pressure sensor 13, the flow sensor 14 and the flue gas component analyzer 15 are all connected to the energy management center 16 through a wireless network; the receiving end of the energy management center 16 is connected to a data processing module 17, and a fault diagnosis module 18 is installed inside the energy management center 16; the fault diagnosis module 18 is connected to the early warning module through a wire and a wireless network 19, the energy management center 16 is connected to the remote communication module 20 through a wire; the input end of the energy management center 16 is connected to the photovoltaic power station 21, and the energy management center 16 includes a central control room and a cloud server; the fault diagnosis module 18 performs fault diagnosis on the boiler operation data based on intelligent algorithms such as expert systems and fuzzy logic; the early warning module 19 establishes an early warning model through historical data; the flue gas composition analyzer 15 mainly monitors the gas components such as oxygen and carbon dioxide in the flue gas; the flow sensor 14 monitors the flow of fluids such as boiler feed water and steam; the pressure sensor 13 monitors the pressure changes inside the boiler; the temperature sensor 12 is used to monitor the temperature of various parts of the boiler.

[0023] In specific implementation, during the use of the boiler energy-saving and consumption-reducing system, in order to realize automatic adjustment and optimized operation of the boiler, the temperature of various parts of the boiler, such as furnace temperature, flue gas temperature, etc., is first monitored through the temperature sensor 12 to ensure that the boiler operates within a safe temperature range; the pressure sensor 13 is used to monitor the pressure change inside the boiler, and the pressure abnormality is discovered in time to prevent safety accidents such as boiler explosion; the flow rate of fluids such as boiler feed water and steam is monitored through the flow sensor 14 to optimize the use of resources such as water and steam; the flue gas component analyzer 15 is used to monitor the oxygen, carbon dioxide and other gas components in the flue gas to evaluate the combustion efficiency and emission; and then the boiler operation data is collected in real time to know the operation status of the boiler; Then, the collected data is transmitted to the energy management center 16 by wired or wireless communication technology, and then the energy management center 16 processes and analyzes the collected data through the data processing module 17, and then extracts useful information to guide the optimization of boiler operation; and the fault diagnosis module 18 performs fault diagnosis on the boiler operation data based on intelligent algorithms such as expert systems and fuzzy logic, and timely discovers and locates faults; and all the monitored data are stored in the database, and then the early warning module 19 establishes an early warning model based on the fault diagnosis results and historical data, and warns of possible faults, so as to take preventive measures in advance; When a fault is predicted in advance, the remote communication module 20 sends the report information to the relevant personnel to interrupt the information reception, and then remote fault diagnosis and maintenance are realized through the Internet technology, thereby improving maintenance efficiency and reducing maintenance costs. In addition, the photovoltaic power station 21 utilizes new energy such as solar energy to provide auxiliary energy or alternative energy for the boiler, thereby reducing energy consumption. Then, the energy consumption of the boiler is monitored and analyzed in real time through the energy management center 16, providing data support for energy saving and consumption reduction, and finally realizing automatic adjustment and optimized operation of the boiler.

[0024] A method for energy-saving use of a boiler comprises the following steps: S1. Raw material preparation: firstly, water and fuel in the fuel bin 3 are introduced into the boiler body 1; water is pre-treated by the water treatment component 4 and then introduced into the boiler body 1, thereby ensuring the quality of boiler water; water in the fuel is evaporated by the dryer 2 before combustion, thereby increasing the calorific value of the fuel; S2, water heating: the water is heated to a specified temperature by the boiler body 1, and the heated water is introduced into the energy storage tank 5 for storage; S3, energy saving and consumption reduction: the sensible heat and latent heat in the flue gas are recovered through the flue gas heat exchange component 8, the ash generated by the boiler combustion is reused through the waste residue treatment pool 10, and the waste water generated by the boiler is treated through the waste water treatment pool 11; the flue gas heat exchange component 8 is responsible for transferring the heat in the flue gas to the water flow for heating, and then the heat in the flue gas is recovered, and the gasified ash is mixed with lime, gypsum and cement through the waste residue treatment pool 10, and then building materials are made to realize resource recycling, and the waste water is treated in the waste water treatment pool 11 to meet the reuse standard, and then the waste water can be used for boiler flushing and circulating cooling of the power plant, reducing its demand for clean water, thereby improving the thermal efficiency of the boiler and reducing energy consumption; S4, intelligent monitoring: The boiler operation data is collected in real time through sensors such as the temperature sensor 12, the pressure sensor 13, the flow sensor 14 and the flue gas composition analyzer 15, and then the collected data is processed and analyzed through the energy management center 16, and useful information is extracted to guide the optimization of boiler operation; the fault diagnosis module 18 is used to diagnose the boiler operation data, and the fault is discovered and located in time. Then the early warning module 19 establishes an early warning model to warn of possible faults, and then take preventive measures in advance, so that the energy consumption of the boiler is monitored and analyzed in real time through the energy management center 16, providing data support for energy saving and consumption reduction, and finally realizing automatic adjustment and optimized operation of the boiler; S5. Heating water flow export: The water flow in the energy storage water tank 5 is introduced into the hot water pipe network 7 through a hot water pump for use by other facilities.

[0025] To sum up, when the boiler energy-saving and consumption-reducing system and its use method are used, the water flow is first pre-treated by the water treatment component 4 and then introduced into the boiler body 1, the moisture in the fuel is evaporated in advance by the dryer 2 and then introduced into the boiler body 1, and then the water flow is heated to a specified temperature by the boiler body 1 and introduced into the energy storage tank 5 for storage, and then the water flow in the energy storage tank 5 is introduced into the hot water pipe network 7 by the hot water pump for use by other facilities, and the heat in the flue gas is recovered by the flue gas heat exchange component 8 to preheat the water flow and air, the burned ash is made into building materials by the waste residue treatment pool 10, and the waste water is treated by the wastewater treatment pool 11 to meet the reuse standard, thereby realizing the reuse of resources, and the energy consumption of the boiler is monitored and analyzed in real time by the energy management center 16, and then data support is provided for energy saving and consumption reduction, and finally the automatic adjustment and optimized operation of the boiler are realized, thereby improving energy utilization efficiency and reducing consumption. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler energy saving and consumption reduction system, comprising a boiler body (1), a dryer (2) and a fuel bunker (3), characterized in that: The boiler body (1) is connected to a dryer (2) via a feed pipe, and the dryer (2) is connected to a fuel bin (3) via a fuel introduction pipe. The boiler body (1) is connected to a water treatment component (4) via an input pipe, and the boiler body (1) is connected to an energy storage water tank (5) via an output pipe, and the water treatment component (4) is connected to a water quality monitoring component (6) via a sampling pipe. The boiler body (1) is connected to a flue gas heat exchange component (8) via a flue gas exhaust pipe, and the output end of the flue gas heat exchange component (8) is connected to a desulfurization tower (9). The boiler body (1) is connected to a waste residue treatment pool (10) via a waste residue outlet pipe, and the boiler body (1) is connected to a waste water treatment pool (11) via a waste water outlet pipe.

2. A boiler energy saving and consumption reduction system according to claim 1, characterized in that: The flue gas heat exchange component (8) is connected to the boiler body (1) via a return pipe, and a mixing component is provided inside the waste residue treatment pool (10).

3. A boiler energy saving and consumption reduction system according to claim 2, characterized in that: The wastewater treatment pool (11) is provided with a wastewater purification component and a heat exchanger, and the dryer (2) is provided with a timer.

4. A boiler energy saving and consumption reduction system according to claim 1, characterized in that: The furnace and smoke exhaust pipe of the boiler body (1) are both installed with temperature sensors (12), and a pressure sensor (13) is installed inside the boiler body (1).

5. A boiler energy saving and consumption reduction system according to claim 4, characterized in that: The water inlet pipe, the outlet pipe and the smoke exhaust pipe of the boiler body (1) are all installed with flow sensors (14), and the smoke exhaust pipe of the boiler body (1) is installed with a smoke composition analyzer (15).

6. A boiler energy saving and consumption reduction system according to claim 5, characterized in that: The temperature sensor (12), the pressure sensor (13), the flow sensor (14) and the flue gas composition analyzer (15) are all connected to an energy management center (16) via a wireless network.

7. A boiler energy saving and consumption reduction system according to claim 6, characterized in that: The receiving end of the energy management center (16) is connected to a data processing module (17), and a fault diagnosis module (18) is installed inside the energy management center (16).

8. A boiler energy saving and consumption reduction system according to claim 7, characterized in that: The fault diagnosis module (18) is connected to the early warning module (19) via a wire and a wireless network, and the energy management center (16) is connected to the remote communication module (20) via a wire.

9. A boiler energy saving and consumption reduction system according to claim 8, characterized in that: The input end of the energy management center (16) is connected to a photovoltaic power station (21), and the energy management center (16) comprises a central control room and a cloud server.

10. A boiler energy-saving method according to claim 9, using a boiler energy-saving and consumption-reducing system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Raw material preparation: firstly, water and fuel in the fuel tank (3) are introduced into the boiler body (1); S2, water flow heating: the water flow is heated to a specified temperature by the boiler body (1), and the heated water flow is introduced into the energy storage tank (5) for storage; S3, energy saving and consumption reduction: recovering sensible heat and latent heat in the flue gas through the flue gas heat exchange component (8), reusing the ash produced by boiler combustion through the waste residue treatment pool (10), and treating the waste water produced by the boiler through the waste water treatment pool (11); S4, intelligent monitoring: real-time collection of boiler operation data through sensors such as temperature sensors (12), pressure sensors (13), flow sensors (14) and flue gas composition analyzers (15), and then processing and analyzing the collected data through the energy management center (16), thereby extracting useful information to guide boiler operation optimization; S5, heating water flow export: the water flow in the energy storage water tank (5) is introduced into the hot water pipe network (7) through the hot water pump for use by other facilities.

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