Flue gas recirculation device

Abstract

The utility model provides a flue gas recirculation device, which relates to the technical field of biomass power generation, and comprises a flue gas circulation box, the bottom of the flue gas circulation box extends to the front side and is fixedly connected with a connecting mechanism, the inside of the flue gas circulation box is fixedly connected with a circulation mechanism, and the connecting mechanism comprises a connecting flue. A first connecting flange is fixedly connected to the position, close to the top, of the back face of the connecting flue and located in the center of the bottom of the flue gas circulating box, a second connecting flange is fixedly connected to the position, close to the bottom, of the front face of the connecting flue, and a supporting block is fixedly connected to the bottom of the connecting flue; smoke passing channels are formed in the two sides of the circulating water tank and located on the inner side of the smoke circulating box, and the position, close to the top, of the right side face of the circulating water tank penetrates through the smoke circulating box to be communicated with a water inlet assembly. Through the design, smoke generated by biomass combustion can be effectively recycled, and therefore energy waste is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of biomass power generation technology, and in particular to a flue gas recirculation device. Background Technology

[0002] Biomass power generation is the generation of electricity using the biomass energy inherent in biomass. It is a type of renewable energy power generation, including direct combustion power generation of agricultural and forestry waste, gasification power generation of agricultural and forestry waste, waste incineration power generation, landfill gas power generation, and biogas power generation.

[0003] In existing technologies, biomass power generation is a process of generating electricity using the biomass energy possessed by organisms. However, existing biomass power generation processes require the use of devices such as combustion furnaces to burn biomass. During the combustion process, a large amount of flue gas is generated, which is generally emitted directly into the air through chimneys. Since the flue gas carries a large amount of heat energy, direct emission does not allow for the utilization of this heat energy, resulting in significant energy waste. Therefore, we propose a flue gas recirculation device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Biomass power generation is a process that uses the biomass energy of living organisms to generate electricity. However, existing biomass power generation processes require the use of combustion furnaces and other devices to burn biomass. During the combustion process, a large amount of flue gas is generated, which is usually emitted directly into the air through chimneys. Since the flue gas carries a large amount of heat energy, direct emission does not allow for the utilization of this heat energy, resulting in a significant waste of energy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flue gas recirculation device includes a flue gas recirculation box, wherein a connecting mechanism is fixedly connected to the bottom of the flue gas recirculation box extending to the front, and a circulation mechanism is fixedly connected inside the flue gas recirculation box.

[0007] The connecting mechanism includes a connecting flue, a first connecting flange is fixedly connected to the back of the connecting flue near the top and at the bottom center of the flue gas circulation box, a second connecting flange is fixedly connected to the front of the connecting flue near the bottom, and a support block is fixedly connected to the bottom of the connecting flue.

[0008] The circulation mechanism includes a circulating water tank fixed inside the flue gas circulation box. Flue gas passages are opened on both sides of the circulating water tank and on the inner side of the flue gas circulation box. A water inlet component is connected through the flue gas circulation box on the right side of the circulating water tank near the top. A water outlet component is connected through the flue gas circulation box at the bottom of the circulating water tank.

[0009] As a preferred embodiment of this utility model, the first connecting flange is fixedly connected to the bottom of the flue gas circulation box by a fastener, and the connecting flue is connected to the interior of the flue gas circulation box.

[0010] As a preferred embodiment of this utility model, the second connecting flange is fixedly connected to the external biomass energy combustion equipment through a fastener, and the connecting flue is connected to the external biomass energy combustion equipment.

[0011] The technical effect of adopting the above-mentioned further solution is that, by setting the second connecting flange, the second connecting flange can effectively connect the connecting flue to the chimney of the external biomass combustion equipment, thereby facilitating the recycling of flue gas.

[0012] As a preferred embodiment of this utility model, the water inlet assembly includes a water inlet pipe that communicates with the circulating water tank and penetrates the flue gas circulation box, and a first electrically controlled valve is sleeved around the water inlet pipe.

[0013] As a preferred embodiment of this utility model, the water outlet component includes a water outlet pipe that communicates with the circulating water tank and penetrates the flue gas circulation box, and a second electrically controlled valve is sleeved around the water outlet pipe.

[0014] The technical effect of adopting the above-mentioned further solution is that, through the setting of the water outlet component, the water outlet component can effectively discharge hot water when the water is boiled.

[0015] As a preferred embodiment of this utility model, a temperature sensor is fixedly connected to the inside of the circulating water tank near the top of the left side wall, and a liquid level sensor is fixedly connected below the temperature sensor.

[0016] As a preferred embodiment of this utility model, the inner wall of the flue gas circulation box is filled with a heat insulation layer, and the heat insulation layer is made of rock wool.

[0017] As a preferred embodiment of this utility model, the top of the flue gas circulation box is connected to a filter pipe, and the interior of the filter pipe near the bottom is filled with a filter layer, which is made of activated carbon material.

[0018] The technical effect of adopting the above-mentioned further solution is that, through the setting of the filter layer, the filter layer can effectively filter and adsorb impurities in the flue gas, and through filtration and adsorption, it can ensure that the flue gas does not cause pollution to the environment.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In this invention, the connecting mechanism and the circulation mechanism effectively connect the chimney of the biomass combustion device to the flue gas circulation box through the connecting flue gas duct in the connecting mechanism. This allows the flue gas to be directly introduced into the flue gas circulation box, causing it to impact the circulating water tank. The water inlet component in the circulation mechanism effectively introduces external water, allowing the heat from the flue gas to boil the water when it impacts the circulating water tank, thus recycling the flue gas and reducing waste. The temperature sensor effectively detects the water temperature, and the liquid level sensor detects the liquid level, facilitating water filling and replenishment. The filter pipe and filter layer effectively filter the water, preventing the flue gas from polluting the environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal planar structure of the flue gas circulation box of this utility model.

[0025] Legend: 1. Flue gas circulation box; 101. Insulation layer; 102. Filter pipe; 103. Filter layer; 2. Connecting mechanism; 201. Connecting flue; 202. First connecting flange; 203. Second connecting flange; 204. Support block; 3. Circulation mechanism; 301. Circulating water tank; 3011. Temperature sensor; 3012. Liquid level sensor; 302. Flue gas passage; 303. Water inlet assembly; 3031. Water inlet pipe; 3032. First solenoid valve; 304. Water outlet assembly; 3041. Water outlet pipe; 3042. Second solenoid valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Example 1

[0031] like Figure 1-4 As shown, this utility model provides a technical solution: a flue gas recirculation device, including a flue gas recirculation box 1, a connecting mechanism 2 fixedly connected to the bottom of the flue gas recirculation box 1 extending to the front, a circulation mechanism 3 fixedly connected inside the flue gas recirculation box 1, the connecting mechanism 2 including a connecting flue 201, a first connecting flange 202 fixedly connected to the back of the connecting flue 201 near the top and at the bottom center of the flue gas recirculation box 1, a second connecting flange 203 fixedly connected to the front of the connecting flue 201 near the bottom, and a support block 204 fixedly connected to the bottom of the connecting flue 201, which can effectively support the connecting flue 201, the circulation mechanism 3 including a circulating water tank 301 fixedly connected inside the flue gas recirculation box 1, flue gas passages 302 opened on both sides of the circulating water tank 301 and located on the inner side of the flue gas recirculation box 1, a water inlet component 303 connected through the flue gas recirculation box 1 on the right side near the top of the circulating water tank 301, and a water outlet component 304 connected through the flue gas recirculation box 1 at the bottom of the circulating water tank 301.

[0032] Example 2

[0033] like Figure 1-4 As shown, the first connecting flange 202 is fixed to the bottom of the flue gas circulation box 1 by a fastener, and the connecting flue duct 201 is connected to the inside of the flue gas circulation box 1, which can ensure the stability of the connection.

[0034] The second connecting flange 203 is fixedly connected to the external biomass energy combustion equipment through a fastener, and the connecting flue 201 is connected to the external biomass energy combustion equipment.

[0035] The water inlet assembly 303 includes a water inlet pipe 3031 that communicates with the circulating water tank 301 and passes through the flue gas circulation box 1. A first electrically controlled valve 3032 is sleeved around the water inlet pipe 3031 to facilitate water replenishment in the circulating water tank 301.

[0036] The water outlet assembly 304 includes a water outlet pipe 3041 that communicates with the circulating water tank 301 and passes through the flue gas circulation box 1. A second electrically controlled valve 3042 is fitted around the water outlet pipe 3041 to facilitate the discharge of hot water.

[0037] A temperature sensor 3011 is fixedly attached to the top of the left side wall inside the circulating water tank 301. A liquid level sensor 3012 is fixedly attached below the temperature sensor 3011, which can detect the water temperature and liquid level.

[0038] The inner wall of the flue gas circulation box 1 is filled with a heat insulation layer 101, which is made of rock wool and can effectively keep the heat.

[0039] The top of the flue gas circulation box 1 is connected to a filter pipe 102. The inside of the filter pipe 102 near the bottom is filled with a filter layer 103, which is made of activated carbon and can effectively filter impurities in the flue gas.

[0040] The working process of this utility model is as follows: When using a flue gas recirculation device, firstly, the first electrically controlled valve 3032 is opened. After the first electrically controlled valve 3032 is opened, external water enters the interior of the circulating water tank 301 through the water inlet pipe 3031. When the liquid level sensor 3012 detects that the water level has reached the set value, the first electrically controlled valve 3032 is closed. When the external biomass combustion equipment generates electricity, the generated flue gas is discharged through the chimney, which is connected to the connecting flue duct 201. The flue gas then enters the interior of the flue gas circulation box 1 along the connecting flue duct 201, impacting the bottom of the circulating water tank 301, utilizing the flue gas... The heat from the flue gas heats the circulating water tank 301, and the flue gas is discharged through the flue gas passage 302 towards the filter pipe 102. During the discharge process, impurities in the flue gas are adsorbed and filtered by the filter layer 103. Under the impact of the heat in the flue gas, the circulating water tank 301 gradually boils. During the boiling process, water vapor is discharged through the exhaust pipe at the top to avoid accidents. When the temperature sensor 3011 detects that the water has boiled, the water can be discharged through the water outlet component 304, and the hot water can then be used. This utility model, through its design, can effectively recycle the flue gas generated by biomass combustion, thereby effectively avoiding energy waste.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas recirculation device, comprising a flue gas recirculation box (1), characterized in that: The bottom of the flue gas circulation box (1) extends to the front and is fixedly connected to a connecting mechanism (2), and the inside of the flue gas circulation box (1) is fixedly connected to a circulation mechanism (3). The connecting mechanism (2) includes a connecting flue (201), a first connecting flange (202) is fixedly connected to the back of the connecting flue (201) near the top and at the bottom center of the flue gas circulation box (1), a second connecting flange (203) is fixedly connected to the front of the connecting flue (201) near the bottom, and a support block (204) is fixedly connected to the bottom of the connecting flue (201). The circulation mechanism (3) includes a circulating water tank (301) fixed inside the flue gas circulation box (1). Flue gas passages (302) are opened on both sides of the circulating water tank (301) and on the inner side of the flue gas circulation box (1). A water inlet assembly (303) is connected through the flue gas circulation box (1) near the top of the right side of the circulating water tank (301). A water outlet assembly (304) is connected through the flue gas circulation box (1) at the bottom of the circulating water tank (301).

2. The flue gas recirculation device according to claim 1, characterized in that: The first connecting flange (202) is fixed to the bottom of the flue gas circulation box (1) by a fastener, and the connecting flue (201) is connected to the inside of the flue gas circulation box (1).

3. The flue gas recirculation device according to claim 1, characterized in that: The second connecting flange (203) is fixedly connected to the external biomass energy combustion equipment through a fastener, and the connecting flue (201) is connected to the external biomass energy combustion equipment.

4. The flue gas recirculation device according to claim 1, characterized in that: The water inlet assembly (303) includes a water inlet pipe (3031) that communicates with the circulating water tank (301) and passes through the flue gas circulation box (1), and a first electrically controlled valve (3032) is sleeved around the water inlet pipe (3031).

5. The flue gas recirculation device according to claim 1, characterized in that: The water outlet assembly (304) includes a water outlet pipe (3041) that communicates with the circulating water tank (301) and passes through the flue gas circulation box (1), and a second electrically controlled valve (3042) is sleeved around the water outlet pipe (3041).

6. The flue gas recirculation device according to claim 1, characterized in that: A temperature sensor (3011) is fixedly connected to the inside of the circulating water tank (301) near the top of the left side wall, and a liquid level sensor (3012) is fixedly connected below the temperature sensor (3011).

7. The flue gas recirculation device according to claim 1, characterized in that: The inner wall of the flue gas circulation box (1) is filled with a heat insulation layer (101), and the heat insulation layer (101) is made of rock wool.

8. The flue gas recirculation device according to claim 1, characterized in that: The top of the flue gas circulation box (1) is connected to a filter pipe (102), and the inside of the filter pipe (102) near the bottom is filled with a filter layer (103), which is made of activated carbon.

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