Energy-saving boiler waste heat recovery device

Abstract

The utility model relates to the technical field of boilers, in particular to an energy-saving boiler waste heat recovery device which comprises a device body and a boiler, a heat conduction plate is fixed in the device body, a water level gauge and a temperature sensor are installed on one side in the device body, and an exhaust fan is installed on the top of the device body. The air inlet end of the exhaust fan is connected with a guide pipe penetrating to the bottom of the heat conducting plate. According to the boiler waste heat recycling device, the defects in the prior art are overcome, and by arranging the exhaust fan, the mounting plate, the through holes, the connecting plate, the activated carbon adsorption net and the clamping groove, hot air generated by a boiler enters the device body through the connecting pipe in the boiler waste heat recycling process; and then after an exhaust fan is started, hot air in the device main body can be driven to flow and be discharged, the hot air is discharged through an exhaust pipe, and the hot air passes through a through hole when floating into the exhaust pipe, so that impurities and the like in the hot air are purified by an activated carbon adsorption net, and the influence of the impurities contained in waste heat on the air quality is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to an energy-saving boiler waste heat recovery device. Background Art

[0002] Combustion boilers are often used in production. Among the energy-consuming devices of industrial enterprises that have been put into operation, the sensible heat and latent heat that were not reasonably utilized in the original design include waste heat from high-temperature exhaust gas, waste heat from cooling medium, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, and waste heat from combustible waste gas, waste liquid and waste materials. Waste heat recovery devices can make the use of combustion boilers more energy-efficient.

[0003] However, in actual use, the existing boiler waste heat recovery device is unable to process impurities in the hot gas generated by the boiler during the recovery and utilization of the boiler's waste heat, which easily affects the quality of waste heat recovery. At the same time, the existing boiler waste heat recovery device is not convenient for knowing the effect of waste heat recovery during actual use. It is not convenient to control the temperature and amount of water when heating water with waste heat, which makes it difficult to make good use of the waste heat. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] An energy-saving boiler waste heat recovery device comprises a device body and a boiler, wherein a heat conducting plate is fixed inside the device body, a water level gauge and a temperature sensor are installed on one side of the inside of the device body, an exhaust fan is installed on the top of the device body, an air inlet end of the exhaust fan is connected to a guide pipe penetrating to the bottom of the heat conducting plate, a mounting plate is installed on the top of the exhaust fan, a through hole is provided on the surface of the mounting plate, a card slot is provided inside the mounting plate, a connecting plate is carded inside the mounting plate, and an activated carbon adsorption net is installed on the surface of the connecting plate;

[0006] The card slot is communicated with the through hole, and the activated carbon adsorption net is communicated with the through hole.

[0007] Preferably, an exhaust pipe is connected to the top of the mounting plate, a bottom end of the exhaust pipe is connected to a through hole, and an air outlet end of the exhaust fan is connected to the through hole.

[0008] Preferably, the water level gauge and the temperature sensor are both located on the upper side of the heat conducting plate, and a water storage cavity is formed between the top of the heat conducting plate and the device body.

[0009] Preferably, an alarm is installed on the top of the device body, and the alarm is electrically connected to the temperature sensor.

[0010] Preferably, a channel is installed at the middle position of the top of the device body, a sealing cover is installed on the top of the channel, and a controller is installed on one side of the surface of the device body, and the controller is electrically connected to the exhaust fan, water level meter, temperature sensor and alarm respectively.

[0011] Preferably, a connecting pipe is connected between the device body and the boiler, and a base is installed at the bottom of the boiler.

[0012] The embodiment of the utility model provides an energy-saving boiler waste heat recovery device, which has the following beneficial effects: after the exhaust fan is started, it can drive the hot air in the device body to flow and discharge, so that the hot air will be discharged through the exhaust pipe, and the hot air will pass through the through hole when floating into the exhaust pipe, so that the activated carbon adsorption net can purify the impurities in the hot air, and at the same time, the water temperature can be monitored in real time through the temperature sensor inside the device body. When the water temperature reaches a certain set value, the temperature sensor will feed back a signal to the controller, so that the controller will activate the alarm to prompt the staff, and then water can be taken and added, etc., to avoid the empty utilization of waste heat.

[0013] By arranging an exhaust fan, a mounting plate, a through hole, a connecting plate, an activated carbon adsorption net and a slot, in the process of recovering and utilizing the waste heat of the boiler, the hot air generated by the boiler will enter the main body of the device through the connecting pipe, and then when the exhaust fan is started, it can drive the hot air in the main body of the device to flow and discharge, so that the hot air will be discharged through the exhaust pipe. When the hot air floats into the exhaust pipe, it will pass through the through hole, so that the activated carbon adsorption net can purify the impurities in the hot air, so as to prevent the impurities contained in the waste heat from affecting the air quality.

[0014] By setting a temperature sensor, a water level gauge and an alarm, when the water in the main body of the device is heated and utilized by the waste heat generated by the boiler, the water temperature can be monitored in real time through the temperature sensor inside the main body of the device. When the water temperature reaches a certain set value, the temperature sensor will feed back a signal to the controller, so that the controller will activate the alarm to prompt the staff, and then the water can be taken and added, etc., to avoid the empty utilization of waste heat. The water level in the main body of the device can be monitored by the water level gauge, thereby improving the effect of waste heat recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the main body of the device of the utility model;

[0018] Figure 3 It is a schematic diagram of the exhaust fan connection structure of the utility model.

[0019] In the figure: 1. Device body; 2. Boiler; 3. Connecting pipe; 4. Base; 5. Exhaust pipe; 6. Channel; 7. Controller; 8. Sealing cover; 9. Alarm; 10. Temperature sensor; 11. Water level gauge; 12. Guide pipe; 13. Exhaust fan; 14. Heat conduction plate; 15. Mounting plate; 16. Through hole; 17. Connecting plate; 18. Activated carbon adsorption net; 19. Card slot. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-3 As shown, an energy-saving boiler waste heat recovery device includes a device body 1 and a boiler 2, a heat conducting plate 14 is fixed inside the device body 1, a water level gauge 11 and a temperature sensor 10 are installed on one side of the inside of the device body 1, an exhaust fan 13 is installed on the top of the device body 1, the air inlet end of the exhaust fan 13 is connected to a guide pipe 12 that penetrates to the bottom of the heat conducting plate 14, a mounting plate 15 is installed on the top of the exhaust fan 13, a through hole 16 is opened on the surface of the mounting plate 15, a card slot 19 is opened inside the mounting plate 15, a connecting plate 17 is carded inside the mounting plate 15, an activated carbon adsorption net 18 is installed on the surface of the connecting plate 17, the card slot 19 is connected to the through hole 16, the activated carbon adsorption net 18 is connected to the through hole 16, the waste heat can float to the position of the activated carbon adsorption net 18 through the guide pipe 12, so that the activated carbon adsorption net 18 can purify the impurities in the hot air, so as to avoid the impurities contained in the waste heat from affecting the air quality.

[0022] For details, please refer to Figure 2-3 The top of the mounting plate 15 is connected to an exhaust pipe 5, the bottom end of the exhaust pipe 5 is connected to the through hole 16, and the air outlet end of the exhaust fan 13 is connected to the through hole 16. After the impurities in the waste heat are purified by the activated carbon adsorption net 18, the hot air will float into the exhaust pipe 5 through the through hole 16 and be discharged.

[0023] For details, please refer to Figure 2The water level gauge 11 and the temperature sensor 10 are both located on the upper side of the heat conducting plate 14. The water temperature can be monitored in real time through the temperature sensor 10 inside the device body 1, and the water level in the device body 1 can be monitored through the water level gauge 11. A water storage chamber is formed between the top of the heat conducting plate 14 and the device body 1, so that the water in the water storage chamber can be heated by the waste heat in the boiler 2.

[0024] For details, please refer to Figure 1-2 An alarm 9 is installed on the top of the device body 1. The alarm 9 is electrically connected to the temperature sensor 10. When the water temperature reaches a certain set value, the temperature sensor 10 feeds back a signal to the controller 7, so that the controller 7 activates the alarm 9 to prompt the staff, and then the water can be taken and added.

[0025] For details, please refer to Figure 1-2 A channel 6 is installed at the middle position of the top of the device body 1, and a sealing cover 8 is installed on the top of the channel 6 to facilitate taking or adding water in the device body 1 through the channel 6. A controller 7 is installed on one side of the surface of the device body 1. The controller 7 is electrically connected to the exhaust fan 13, the water level meter 11, the temperature sensor 10 and the alarm 9 respectively. The exhaust fan 13, the water level meter 11, the temperature sensor 10 and the alarm 9 can be turned on or off by the controller 7 to recycle the waste heat.

[0026] For details, please refer to Figure 1 A connecting pipe 3 is connected between the device body 1 and the boiler 2, and a base 4 is installed at the bottom of the boiler 2, so that the hot air generated by the boiler 2 will enter the device body 1 through the connecting pipe 3, so as to be recycled.

[0027] Working principle: First, in the process of recovering and utilizing the waste heat of the boiler 2, the hot air generated by the boiler 2 will enter the device body 1 through the connecting pipe 3, and then the exhaust fan 13 will be started to drive the hot air in the device body 1 to flow and discharge, so that the hot air will be discharged through the exhaust pipe 5. When the hot air floats into the exhaust pipe 5, it will pass through the through hole 16, so that the activated carbon adsorption net 18 purifies the impurities in the hot air to avoid the impurities contained in the waste heat from affecting the air quality. At the same time, when the water in the device body 1 is heated and utilized by the waste heat generated by the boiler 2, the water temperature can be monitored in real time by the temperature sensor 10 inside the device body 1. When the water temperature reaches a certain set value, the temperature sensor 10 will feed back the signal to the controller 7, so that the controller 7 will start the alarm 9 to prompt the staff, and then the water can be taken and added to avoid the empty utilization of the waste heat, and the water level in the device body 1 can be monitored by the water level meter 11, thereby improving the effect of waste heat recovery.

Claims

1. An energy-saving boiler waste heat recovery device, comprising a device body (1) and a boiler (2), characterized in that: A heat conducting plate (14) is fixed inside the device body (1), a water level gauge (11) and a temperature sensor (10) are installed on one side of the inside of the device body (1), an exhaust fan (13) is installed on the top of the device body (1), an air inlet end of the exhaust fan (13) is connected to a guide pipe (12) that runs through the bottom of the heat conducting plate (14), a mounting plate (15) is installed on the top of the exhaust fan (13), a through hole (16) is provided on the surface of the mounting plate (15), a slot (19) is provided inside the mounting plate (15), a connecting plate (17) is connected inside the mounting plate (15), and an activated carbon adsorption net (18) is installed on the surface of the connecting plate (17); The card slot (19) is in communication with the through hole (16), and the activated carbon adsorption net (18) is in communication with the through hole (16).

2. The energy-saving boiler waste heat recovery device according to claim 1 is characterized in that: The top of the mounting plate (15) is connected to an exhaust pipe (5), the bottom end of the exhaust pipe (5) is connected to a through hole (16), and the air outlet end of the exhaust fan (13) is in communication with the through hole (16).

3. The energy-saving boiler waste heat recovery device according to claim 1 is characterized in that: The water level meter (11) and the temperature sensor (10) are both located on one side above the heat conducting plate (14), and a water storage cavity is formed between the top of the heat conducting plate (14) and the device body (1).

4. The energy-saving boiler waste heat recovery device according to claim 1 is characterized in that: An alarm (9) is installed on the top of the device body (1), and the alarm (9) is electrically connected to the temperature sensor (10).

5. The energy-saving boiler waste heat recovery device according to claim 4 is characterized in that: A channel (6) is installed at the middle position of the top of the device body (1), a sealing cover (8) is installed on the top of the channel (6), and a controller (7) is installed on one side of the surface of the device body (1), and the controller (7) is electrically connected to the exhaust fan (13), the water level meter (11), the temperature sensor (10) and the alarm (9) respectively.

6. The energy-saving boiler waste heat recovery device according to claim 5 is characterized in that: A connecting pipe (3) is connected between the device body (1) and the boiler (2), and a base (4) is installed at the bottom of the boiler (2).

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