A flue gas white smoke elimination device

Abstract

The utility model discloses a flue gas white smoke elimination device, including the casing, one end of casing is equipped with the smoke inlet, and the other end is provided with the smoke outlet, be equipped with a plurality of horizontal arrangement's conveying pipe and the support mechanism of fixed conveying pipe in the casing, the both ends of conveying pipe intercommunication smoke inlet and smoke outlet, the support mechanism includes the end plate of both sides and the baffle in the middle, conveying pipe penetrates the baffle and is fixed with the end plate in both ends, the top of casing still is equipped with the cold air inlet and hot air outlet, the baffle divides the casing left and right, the cold air inlet and hot air outlet establish at the both sides of baffle, this flue gas white smoke elimination device can effectively reduce the flue gas temperature when using, has good white smoke elimination effect, and hot air can secondary utilization after heat exchange, can save energy, is suitable for using widely.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a flue gas whitening device. Background Technology

[0002] A boiler is an energy conversion device. The energy input into a boiler can be chemical energy, electrical energy, etc. When in use, a boiler will produce white plumes of smoke with a certain temperature and humidity, commonly known as "big white smoke".

[0003] In order to meet the environmental requirements for flue gas emissions, it is usually necessary to eliminate the white smoke. The purpose is twofold: firstly, to eliminate the visual white smoke, and secondly, to achieve environmental protection and energy conservation.

[0004] Traditional flue gas whitening devices have a simple structure, poor condensation and cooling efficiency, and the condensed hot air is not easy to collect and reuse, resulting in unsatisfactory performance. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by providing a flue gas whitening device that can effectively reduce flue gas temperature, produce a good whitening effect, and allow the hot air after heat exchange to be reused, thus saving energy.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a smoke whitening device, comprising a housing, with a smoke inlet at one end and a smoke outlet at the other end, the housing containing a plurality of horizontally arranged conveying pipes and a support mechanism for fixing the conveying pipes, the two ends of the conveying pipes connecting the smoke inlet and the smoke outlet, the support mechanism including end plates on both sides and a partition in the middle, the conveying pipes passing through the partition and being fixed at both ends to the end plates, and a cold air inlet and a hot air outlet at the top of the housing.

[0007] Preferably, the partition separates the housing into left and right sides, and the cold air inlet and hot air outlet are located on both sides of the partition.

[0008] Preferably, the housing is further provided with an air deflection cavity, which connects the two sides of the partition.

[0009] Preferably, the air deflection cavity is located on the opposite side of the cold air inlet and the hot air outlet.

[0010] Preferably, a buffer cavity is provided on the inner side of both the smoke inlet and the smoke outlet.

[0011] Preferably, both the bottom of the housing and the bottom of the buffer cavity are provided with drain pipes.

[0012] Preferably, the bottom end of the drain pipe is connected to a U-shaped water seal bend, which is connected to the trench.

[0013] Preferably, temperature probes are installed at the smoke inlet, smoke outlet, cold air inlet, and hot air outlet.

[0014] This utility model discloses a flue gas whitening device, comprising a housing with a smoke inlet at one end and a smoke outlet at the other end. The housing contains multiple horizontally arranged conveying pipes and a support mechanism for fixing the conveying pipes. The two ends of each conveying pipe connect the smoke inlet and the smoke outlet. The support mechanism includes end plates on both sides and a partition in the middle. The conveying pipes pass through the partition and are fixed to the end plates at both ends. A cold air inlet and a hot air outlet are also provided at the top of the housing. The partition separates the housing left and right sides, with the cold air inlet and hot air outlet located on opposite sides of the partition. Compared with existing technologies, this flue gas whitening device effectively reduces flue gas temperature, produces a good whitening effect, and allows for the reuse of the hot air after heat exchange, thus saving energy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of a flue gas whitening device according to the present invention. Figure 1 .

[0016] Figure 2 This utility model Figure 1 A cross-sectional view along the AA direction.

[0017] Figure 3 This is a schematic diagram of the internal structure of a flue gas whitening device according to the present invention. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the flow direction of flue gas and air in a flue gas whitening device according to the present invention.

[0019] In the diagram: 1. Shell; 2. Smoke inlet; 3. Smoke outlet; 4. Buffer chamber; 5. End plate; 6. Partition plate; 7. Conveying pipe; 8. Drain pipe; 9. Water seal bend; 10. Air turning chamber; 11. Cold air inlet; 12. Hot air outlet; 13. Temperature probe. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] Please refer to Figures 1-3A flue gas whitening device includes a housing 1. One end of the housing 1 is provided with a flue gas inlet 2, through which high-temperature flue gas generated by the device enters the housing 1. The other end is provided with a flue gas outlet 3, through which the flue gas is discharged after whitening. The housing 1 is provided with a plurality of horizontally arranged conveying pipes 7 and a support mechanism for fixing the conveying pipes 7. The two ends of the conveying pipes 7 are connected to the flue gas inlet 2 and the flue gas outlet 3. The support mechanism includes end plates 5 on both sides and a partition plate 6 in the middle. The conveying pipes 7 pass through the partition plate 6 and are fixed to the end plates 5 at both ends. The housing 1 is also provided with a cold air inlet 11 and a hot air outlet 12.

[0022] In this embodiment, the partition 6 divides the housing 1 into left and right sides, and the cold air inlet 11 and the hot air outlet 12 are located on both sides of the partition 6.

[0023] Please refer to this again. Figure 3 When in use, the high-temperature flue gas generated by the equipment (boiler, etc.) enters the shell 1 through the flue gas inlet 2. After entering, the flue gas flows along the horizontally set conveying pipe 7 towards the flue gas outlet 3. At the same time, cold air (or room temperature air) is injected into the shell 1 through the cold air inlet 11 by the fan. After injection, the cold air contacts the outer wall of the conveying pipe 7. During this process, cold air absorbs heat from the conveying pipe 7 and becomes hot air, which is eventually discharged at the hot air outlet 12; while the temperature of the high-temperature flue gas decreases after releasing heat, thereby achieving the cooling and whitening effect of the high-temperature flue gas and satisfying the whitening effect of the flue gas.

[0024] The exhaust hot air can be reused to heat external water, increase fuel temperature, etc., which can save fuel.

[0025] To facilitate airflow within the housing 1, the housing 1 is also provided with an air deflection cavity 10, which connects the two sides of the partition 6.

[0026] Please refer to the direction of smoke and air flow. Figure 4 In other words, the partition 6 separates the shell 1 into left and right sides. After separation, cold air enters on one side and hot air is discharged on the other side. The air turning chamber 10 is set up to deflect and turn the air in the shell 1, adjust the airflow direction, and make the flue gas cool down quickly and exhaust more smoothly.

[0027] As a preferred embodiment, the air deflection cavity 10 is provided with inclined inner walls on both sides for rapid air deflection, and the air deflection cavity 10 is located on the opposite side of the cold air inlet 11 and the hot air outlet 12, so that the cold air can be directly blown into the air deflection cavity 10 after entering to achieve deflection and improve exhaust efficiency.

[0028] Furthermore, both the smoke inlet 2 and the smoke outlet 3 are provided with a buffer cavity 4 on their inner sides. The buffer cavity 4 is provided to facilitate better entry and exit of smoke and eliminate local resistance.

[0029] During use, condensation will be generated when cold air comes into contact with the high-temperature conveying pipe 7. In order to facilitate the drainage of condensation, drain pipes 8 are provided at the bottom of the housing 1 and the bottom of the buffer cavity 4.

[0030] In addition, to prevent flue gas from being directly discharged from the drain pipe 8, a U-shaped water seal bend 9 is connected to the bottom of the drain pipe 8. Under normal conditions, condensate is stored in the water seal bend 9. The condensate seals the water seal bend 9 to prevent the flue gas inside from flowing out. When the condensate flows back into the drain pipe 8, the condensate is discharged using the principle of communicating vessels. The discharged condensate is discharged into the ditch through the water seal bend 9.

[0031] Based on the above embodiments, the conveying pipe 7 is made of ND steel, which has corrosion resistance properties, and the conveying pipe adopts a pressed spiral structure, which can increase the heat exchange intensity and improve the heat exchange efficiency.

[0032] Based on the above embodiments, temperature probes 13 are installed at the smoke inlet 2, smoke outlet 3, cold air inlet 11 and hot air outlet 12 to monitor the air temperature at each location in real time.

[0033] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A smoke whitening device, comprising a housing, wherein one end of the housing has a smoke inlet and the other end has a smoke outlet, characterized in that, The housing contains multiple horizontally arranged conveying pipes and a support mechanism for fixing the conveying pipes. The two ends of the conveying pipes are connected to the smoke inlet and the smoke outlet. The support mechanism includes end plates on both sides and a partition in the middle. The conveying pipes pass through the partition and are fixed to the end plates at both ends. The housing also has a cold air inlet and a hot air outlet at the top.

2. The flue gas whitening device according to claim 1, characterized in that, The partition separates the shell into left and right sides, and the cold air inlet and hot air outlet are located on both sides of the partition.

3. The flue gas whitening device according to claim 1 or 2, characterized in that, The housing is also provided with an air deflection cavity, which connects the two sides of the partition.

4. The flue gas whitening device according to claim 3, characterized in that, The air transition cavity is located on the opposite side of the cold air inlet and the hot air outlet.

5. The flue gas whitening device according to claim 1, characterized in that, Both the inlet and outlet of the smoke are provided with buffer chambers on their inner sides.

6. The flue gas whitening device according to claim 4, characterized in that, Drain pipes are provided at the bottom of the housing and the bottom of the buffer cavity.

7. The flue gas whitening device according to claim 6, characterized in that, The bottom end of the drain pipe is connected to a U-shaped water seal bend, which is connected to the trench.

8. The flue gas whitening device according to claim 1, characterized in that, Temperature probes are installed at the smoke inlet, smoke outlet, cold air inlet, and hot air outlet.

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