Cooling device of bag-type dust collector

Abstract

The utility model discloses a cooling device of a bag-type dust collector, the cooling device is located on the front side of the bag-type dust collector, the output side of the cooling device is communicated with the input side of the bag-type dust collector, the cooling device comprises an air inlet pipe, an induced draft fan, a passive cooling assembly, an active cooling assembly and an air outlet pipe, the air inlet pipe is connected with an external high-temperature flue gas outlet, and the output side of the induced draft fan is communicated with the passive cooling assembly; the passive cooling assembly is provided with a heat conduction pipe and cooling fins, partition plates used for blocking smoke and buffering airflow impact are arranged in the heat conduction pipe in a staggered mode, the cooling fins are arranged outside the heat conduction pipe, and the upper end of the heat conduction pipe is connected with a buffering connecting pipe. The tail end of the buffering connecting pipe is communicated with the active cooling assembly through a flange. According to the utility model, the combination of the passive cooling assembly and the active cooling assembly is adopted, so that the flue gas can be continuously cooled, and the flue gas finally entering the bag-type dust collector is ensured to be lower than the working requirement.

Description

Technical Field

[0001] This utility model relates to the field of baghouse dust collectors, specifically a cooling device for baghouse dust collectors. Background Technology

[0002] Baghouse dust collectors offer advantages such as high dust removal efficiency, a wide range of air volume handling capabilities, simple structure, and convenient maintenance and operation. In the purification of flue gas from furnaces and kilns in the steel, non-ferrous metallurgy, building materials, and chemical industries, various complex environments and adverse factors encountered have been overcome, leading to a continuous expansion of the application areas of baghouse dust collection technology.

[0003] Baghouse dust collectors are used in various fields to filter dust from flue gas. Flue gas has a certain temperature, and the filter bags inside the dust collector have strict temperature requirements. Therefore, the temperature entering the dust collector should be lower than the range that the filter bags can withstand. However, during operation, the flue gas temperature can rise sharply under abnormal conditions. To prevent high-temperature flue gas from entering the dust collector and burning the filter bags, a cooling valve / cooling device is usually installed to cool the flue gas. However, when the cooling valve is opened, outside air directly enters the flue to cool the temperature. In humid weather or during rain or snow, moisture and water are brought into the flue and come into contact with the filter bags. This causes dust to adhere to the filter bags after contact with water. After the flue gas evaporates the moisture, the dust cakes on the surface of the filter bags, making it difficult to clean. Therefore, this utility model proposes a cooling device for a bag filter dust collector, which adopts a combination of passive cooling components and active cooling components. The passive cooling component uses heat-conducting pipes to absorb heat from the flue gas and uses staggered baffles inside the pipes to block the flue gas, so that the flue gas stays in the heat-conducting pipes for a long time, thereby improving the heat absorption efficiency of the heat-conducting pipes. The heat-conducting pipes dissipate heat through heat sinks, so that the heat-conducting pipes can circulate heat dissipation. The active cooling component uses water cooling for active heat dissipation. The active cooling component connects each cooling chamber of the cooling chamber through water cooling pipes, so that the temperature of the flue gas decreases as it passes through each cooling chamber, thereby ensuring that the flue gas entering the bag filter dust collector is below the working requirements. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for a bag filter dust collector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling device for a bag filter dust collector, the cooling device being located at the front of the bag filter dust collector, the output side of the cooling device being connected to the input side of the bag filter dust collector, the cooling device including an inlet pipe, an induced draft fan, a passive cooling component, an active cooling component, and an outlet pipe, wherein the input side of the induced draft fan is connected to the inlet pipe, the inlet pipe being connected to an external high-temperature flue gas outlet, and the output side of the induced draft fan is connected to the passive cooling component; the passive cooling component has heat-conducting pipes and heat sinks, wherein baffles for blocking flue gas and buffering airflow impact are alternately arranged inside the heat-conducting pipes, and heat sinks are outside the heat-conducting pipes, and a buffer pipe is connected to the upper end of the heat-conducting pipes; the buffer pipe is U-shaped, and the end of the buffer pipe is connected to the active cooling component through a flange, the active cooling component including a cooling chamber and a cooling water circulation component.

[0006] Preferably, the cooling chamber is provided with a primary cooling chamber, a secondary cooling chamber, and a tertiary cooling chamber from top to bottom. Each cooling chamber is equipped with a flange joint outside and a temperature monitor for monitoring the temperature inside each cooling chamber.

[0007] Preferably, the first-stage cooling chamber, the second-stage cooling chamber, and the third-stage cooling chamber are all equipped with cooling jackets on their inner sides, and the cooling water circulation components include a water tank, an inlet pump, an inlet pipe A, an inlet pipe B, an outlet pump, an outlet pipe A, and an outlet pipe B.

[0008] Preferably, the water tank has at least three water storage chambers, and a chiller unit for drainage and heat dissipation is provided between two adjacent water storage chambers.

[0009] Preferably, inlet pipe A and inlet pipe B are connected to the input and output sides of the inlet pump, respectively, and outlet pipe A and outlet pipe B are connected to the input and output sides of the outlet pump, respectively. Inlet pipe A and outlet pipe A extend to the first and third water storage chambers of the water tank, respectively. The ends of inlet pipe B and outlet pipe B are divided into three paths and connected to the primary cooling chamber, the secondary cooling chamber, and the tertiary cooling chamber, respectively.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention employs a combination of passive and active cooling components. The passive cooling component utilizes heat pipes to absorb heat from the flue gas and uses staggered baffles within the pipes to block the flue gas, allowing the flue gas to remain within the heat pipes for a longer period, thereby improving the heat absorption efficiency of the heat pipes. The heat pipes then dissipate heat through heat sinks, enabling the heat pipes to circulate and dissipate heat. The active cooling component utilizes water cooling for active heat dissipation. The active cooling component connects each cooling chamber of the cooling chamber through water cooling pipes, ensuring that the temperature of the flue gas decreases as it passes through each cooling chamber, thus guaranteeing that the flue gas entering the bag filter is below the operating requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the rear structure of the present invention;

[0013] Figure 2 This is a front structural diagram of the present invention.

[0014] In the diagram: 1. Inlet pipe; 2. Exhaust fan; 3. Heat pipe; 4. Heat sink; 5. Buffer pipe; 6. Flange; 7. Primary cooling chamber; 8. Secondary cooling chamber; 9. Tertiary cooling chamber; 10. Temperature monitor; 11. Water tank; 12. Inlet pump; 13. Inlet pipe A; 14. Inlet pipe B; 15. Outlet pump; 16. Outlet pipe A; 17. Outlet pipe B; 18. Chiller unit. Detailed Implementation

[0015] 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.

[0016] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Please see Figure 1-2This utility model provides a technical solution: a cooling device for a bag filter dust collector, comprising a cooling device located at the front of the bag filter dust collector, the output side of the cooling device being connected to the input side of the bag filter dust collector, the cooling device including an inlet pipe 1, an induced draft fan 2, a passive cooling component, an active cooling component, and an outlet pipe, wherein the input side of the induced draft fan 2 is connected to the inlet pipe 1, the inlet pipe 1 is connected to an external high-temperature flue gas outlet, and the output side of the induced draft fan 2 is connected to the passive cooling component; the passive cooling component has a heat-conducting pipe 3 and a heat sink 4, wherein the heat-conducting pipe 3 is provided with staggered baffles (not shown in the figure) for blocking flue gas and buffering airflow impact, and the heat sink 4 is provided outside the heat-conducting pipe 3, and a buffer pipe 5 is connected to the upper end of the heat-conducting pipe 3; the buffer pipe 5 is U-shaped, and the end of the buffer pipe 5 is connected to the active cooling component through a flange 6, the active cooling component including a cooling chamber and a cooling water circulation component.

[0019] In this embodiment, the cooling chamber is provided with a primary cooling chamber 7, a secondary cooling chamber 8, and a tertiary cooling chamber 9 from top to bottom. Each cooling chamber is provided with a flange joint outside and a temperature monitor 10 for monitoring the temperature inside each cooling chamber.

[0020] In this embodiment, cooling jackets are provided inside the primary cooling chamber 7, the secondary cooling chamber 8, and the tertiary cooling chamber 9. The cooling water circulation assembly includes a water tank 11, an inlet pump 12, an inlet pipe A13, an inlet pipe B14, an outlet pump 15, an outlet pipe A16, and an outlet pipe B17.

[0021] In this embodiment, the water tank 11 is provided with at least three water storage chambers, and a chiller unit 18 for drainage and heat dissipation is provided between two adjacent water storage chambers.

[0022] In this embodiment, inlet pipe A13 and inlet pipe B14 are respectively connected to the input and output sides of inlet pump 12, and outlet pipe A16 and outlet pipe B17 are respectively connected to the input and output sides of outlet pump 15. Inlet pipe A13 and outlet pipe A16 extend to the first and third water storage chambers of water tank 11, respectively. The ends of inlet pipe B14 and outlet pipe B17 are respectively connected to the first-stage cooling chamber 7, the second-stage cooling chamber 8, and the third-stage cooling chamber 9.

[0023] In this embodiment, a combination of passive cooling and active cooling components is used. The passive cooling component absorbs heat from the flue gas using heat pipes 3 and blocks the flue gas through staggered baffles inside, allowing the flue gas to remain in the heat pipes 3 for a longer time, thereby improving the heat absorption efficiency of the heat pipes 3. The heat pipes 3 dissipate heat through heat sinks 4, enabling the heat pipes 3 to circulate heat dissipation. The active cooling component uses water cooling for active heat dissipation. The active cooling component connects each cooling chamber of the cooling chamber through water cooling pipes, so that the temperature of the flue gas decreases as it passes through each cooling chamber, thereby ensuring that the flue gas entering the bag filter is below the operating requirements.

[0024] It is worth noting that the entire device is controlled by a master control button. Since the device matched with the control button is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0025] 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 cooling device for a bag filter dust collector, characterized in that, The cooling device is located in front of the bag filter. The output side of the cooling device is connected to the input side of the bag filter. The cooling device includes an inlet pipe (1), an induced draft fan (2), a passive cooling component, an active cooling component, and an outlet pipe. The input side of the induced draft fan (2) is connected to the inlet pipe (1), and the inlet pipe (1) is connected to the external high-temperature flue gas outlet. The output side of the induced draft fan (2) is connected to the passive cooling component. The passive cooling component has a heat-conducting pipe (3) and a heat sink (4). The heat-conducting pipe (3) is interlaced with baffles for blocking flue gas and buffering airflow impact. The heat-conducting pipe (3) has a heat sink (4) outside. The upper end of the heat-conducting pipe (3) is connected to a buffer pipe (5). The buffer pipe (5) is U-shaped. The end of the buffer pipe (5) is connected to the active cooling component through a flange (6). The active cooling component includes a cooling chamber and a cooling water circulation component.

2. The cooling device for a bag filter dust collector according to claim 1, characterized in that: The cooling chamber is provided with a first-level cooling chamber (7), a second-level cooling chamber (8), and a third-level cooling chamber (9) from top to bottom. Each cooling chamber is equipped with a flange joint outside and a temperature monitor (10) for monitoring the temperature inside each cooling chamber.

3. The cooling device for a bag filter dust collector according to claim 2, characterized in that: The first-stage cooling chamber (7), the second-stage cooling chamber (8), and the third-stage cooling chamber (9) are all equipped with cooling jackets. The cooling water circulation components include a water tank (11), an inlet pump (12), an inlet pipe A (13), an inlet pipe B (14), an outlet pump (15), an outlet pipe A (16), and an outlet pipe B (17).

4. The cooling device for a bag filter dust collector according to claim 3, characterized in that: The water tank (11) is provided with at least three water storage chambers, and a chiller unit (18) for drainage and heat dissipation is provided between two adjacent water storage chambers.

5. The cooling device for a bag filter dust collector according to claim 3, characterized in that: The inlet pipe A (13) and the inlet pipe B (14) are respectively connected to the input and output sides of the inlet pump (12), and the outlet pipe A (16) and the outlet pipe B (17) are respectively connected to the input and output sides of the outlet pump (15). The inlet pipe A (13) and the outlet pipe A (16) extend to the first water storage chamber and the third water storage chamber of the water tank (11) respectively. The ends of the inlet pipe B (14) and the outlet pipe B (17) are respectively connected to the first-stage cooling chamber (7), the second-stage cooling chamber (8) and the third-stage cooling chamber (9).

Images