A crown block electric appliance bin cooling and dust removing system

Abstract

This utility model relates to a cooling and dust removal system for an overhead crane electrical compartment, belonging to the technical field of cooling and dust removal equipment. The technical solution of this utility model is as follows: the lower end of a PVC pipe (1) is connected to the atmosphere; a three-way filter (2) is sealed to the PVC pipe (1); the three-way filter (2), the serpentine condenser (3), and the suction fan (4) are connected sequentially through the PVC pipe (1); an internal venturi tube (5) is connected to the exhaust port of the suction fan (4); the internal venturi tube (5), the electrical compartment (6), and the exhaust fan (7) are connected sequentially; and a dust filtration device (8) is connected to the outlet of the exhaust fan (7) through the PVC pipe (1). The beneficial effects of this utility model are: improving the efficiency and quality of cooling the electrical components in the electrical compartment, ensuring the stability of the cooling process; at the same time, improving the working environment of the electrical compartment, reducing the dust contamination in the cold air and the dust in the exhaust heat, ensuring the stability of the production line control and the cleanliness of the site environment.

Description

Technical Field

[0001] This utility model relates to a cooling and dust removal system for an overhead crane electrical compartment, belonging to the technical field of cooling and dust removal equipment. Background Technology

[0002] The overhead crane electrical control unit in a steelmaking workshop is the core of the crane's operation and control, transmitting signals and commands to manage and control related production processes. All power cables, control cables, and related distribution cabinets for the crane are routed to the control cabinet within this unit. Overhead cranes are widely used in metallurgical and coal mining workshops, where the working environment is harsh, with high levels of dust and temperatures. The heat generated by the crane's cables and electrical components causes the electrical control unit's temperature to rise continuously. Currently, to reduce the temperature inside the electrical control unit and minimize malfunctions caused by overheating, one or more fans or air conditioners are typically installed for cooling. However, due to the severe environmental impact, cooling equipment malfunctions are frequent. The overhead crane's electrical system requires high precision, especially expensive components such as frequency converters, stators, voltage regulators, and speed controllers, which are more susceptible to dust. Dust often damages frequency converters and other components, causing machine malfunctions and impacting work progress. Summary of the Invention

[0003] The purpose of this utility model is to provide a cooling and dust removal system for the electrical compartment of an overhead crane. Powered by a suction fan, it directs fresh external air through PVC pipes, a three-way filter, a serpentine condenser, a built-in venturi tube, the electrical compartment, and a dust filter, creating a pathway for cold air to enter, cool, and exit. This ensures that cold air enters the electrical compartment in an orderly and clean manner, and that hot air and indoor dust are orderly expelled, improving the efficiency and quality of cooling the electrical components within the compartment and ensuring the stability of the cooling process. Simultaneously, it improves the working environment of the electrical compartment, reducing dust contamination in the cold air and dust from the expelled hot air, ensuring the stability of production line control and the cleanliness of the work area, thus solving the aforementioned problems in the prior art.

[0004] The technical solution of this utility model is: a cooling and dust removal system for an overhead crane electrical compartment, comprising a PVC pipe, a three-way filter, a serpentine condenser, a suction fan, a concealed venturi tube, an electrical compartment, an exhaust fan, and a dust filtration device. The lower end of the PVC pipe is connected to the atmosphere, the three-way filter is sealed to the PVC pipe, and the three-way filter, the serpentine condenser, and the suction fan are connected sequentially through the PVC pipe. The concealed venturi tube is connected to the exhaust port of the suction fan, and the concealed venturi tube, the electrical compartment, and the exhaust fan are connected sequentially. The dust filtration device is connected to the outlet of the exhaust fan through the PVC pipe.

[0005] The PVC pipe is of type DN80.

[0006] The built-in venturi tube includes an inlet section, a constriction section, a throat, a diffuser section, and an outlet section. The inlet section is welded to the exhaust port of the suction fan via a flexible metal hose, and the diameter of the inlet section is larger than the diameter of the outlet section.

[0007] The internal venturi tube is made of 1mm thick steel plate, with an inlet diameter of 80mm and an outlet diameter of 65mm.

[0008] The electrical compartment houses one or more electrical control cabinets and is equipped with data transmission lines. The air inlet is located at the bottom of the electrical compartment, and the air outlet is located at the top of the electrical compartment. A pipe hanging bracket is installed below the electrical compartment, and the cold air supply pipe is fixed on the pipe hanging bracket.

[0009] The inner tube of the serpentine condenser is made of glass, and the outer tube is made of stainless steel. The serpentine condenser is equipped with a cooling water inlet and a cooling water outlet. The cooling water inlet is located below the main body of the serpentine condenser, and the cooling water outlet is located above the main body of the serpentine condenser. The airflow inlet and airflow outlet of the serpentine condenser are conical in shape and are embedded in and secured to the PVC pipe.

[0010] Both the cooling water inlet and the cooling water outlet are connected to rubber hoses. The rubber hose at the cooling water inlet is connected and secured to the pressurized water pump and placed inside the water tank, and is completely submerged 50mm below the liquid surface. The circulation speed of the circulating water during operation is 0.2m / s.

[0011] The beneficial effects of this utility model are as follows: The suction fan provides power, allowing fresh external air to flow through PVC pipes, three-way filters, serpentine condensers, built-in venturi tubes, electrical compartments, dust filters, and other devices, forming a pathway for cold air to enter, cool, and exit. This ensures that cold air enters the electrical compartment in an orderly and clean manner, and that hot air and indoor dust are drawn out in an orderly manner, improving the efficiency and quality of cooling the electrical components in the electrical compartment and ensuring the stability of the cooling process. At the same time, it improves the working environment of the electrical compartment, reduces the dust entrainment in the cold air and the dust in the exhaust air, and ensures the stability of the production line control and the cleanliness of the site environment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram illustrating the working principle of the concealed venturi tube of this utility model.

[0014] Figure 3 This is a schematic diagram of the serpentine condenser of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the dust filtration device of this utility model;

[0016] In the diagram: 1. PVC pipe; 2. Three-way filter; 3. Serpentine condenser; 4. Cooling water inlet; 5. Cooling water outlet; 6. Suction fan; 7. Concealed venturi tube; 8. Inlet section; 9. Contraction section; 10. Throat; 11. Diffusion section; 12. Outlet section; 13. Electrical compartment; 14. Exhaust fan; 15. Dust filter; 16. Detailed Implementation

[0017] To make the purpose, technical solution, and advantages of this utility model clearer, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described implementation cases are only a small part of this utility model, not all of them. All other implementation cases obtained by those skilled in the art based on the implementation cases of this utility model without creative effort are within the protection scope of this utility model.

[0018] A cooling and dust removal system for an overhead crane electrical compartment includes a PVC pipe 1, a three-way filter 2, a serpentine condenser 3, a suction fan 4, a concealed venturi tube 5, an electrical compartment 6, an exhaust fan 7, and a dust filter device 8. The lower end of the PVC pipe 1 is open to the atmosphere. The three-way filter 2 is sealed to the PVC pipe 1. The three-way filter 2, the serpentine condenser 3, and the suction fan 4 are connected in sequence through the PVC pipe 1. The concealed venturi tube 5 is connected to the exhaust port of the suction fan 4. The concealed venturi tube 5, the electrical compartment 6, and the exhaust fan 7 are connected in sequence. The dust filter device 8 is connected to the outlet of the exhaust fan 7 through the PVC pipe 1.

[0019] The PVC pipe 1 is of type DN80.

[0020] The internal venturi tube 5 includes an inlet section 51, a constriction section 52, a throat 53, a diffuser section 54, and an outlet section 55. The inlet section 51 is welded to the exhaust port of the suction fan 4 through a metal flexible hose, and the diameter of the inlet section 51 is larger than the diameter of the outlet section 55.

[0021] The internal venturi tube 5 is made of 1mm thick steel plate, with an inlet section 51 having a diameter of 80mm and an outlet section 55 having a diameter of 65mm.

[0022] The electrical compartment 6 houses one or more electrical control cabinets and is equipped with data transmission lines. The air inlet is located at the bottom of the electrical compartment, and the air outlet is located at the top of the electrical compartment. A pipe hanging bracket is installed below the electrical compartment 6, and the cold air supply pipe is fixed on the pipe hanging bracket.

[0023] The inner tube of the serpentine condenser 3 is made of glass, and the outer tube is made of stainless steel. The serpentine condenser 3 is provided with a cooling water inlet 31 and a cooling water outlet 32. The cooling water inlet 31 is located below the main body of the serpentine condenser 3, and the cooling water outlet 32 ​​is located above the main body of the serpentine condenser 3. The airflow inlet and airflow outlet of the serpentine condenser 3 are conical and are embedded in and fastened to the PVC pipe 1.

[0024] Both the cooling water inlet 31 and the cooling water outlet 32 ​​are connected to rubber hoses. The rubber hose at the cooling water inlet 31 is connected and secured to the pressurized water pump and placed inside the water tank, and is completely submerged 50mm below the liquid surface. The circulation speed of the circulating water during operation is 0.2m / s. Example 1

[0025] This utility model comprises a PVC pipe 1, a three-way filter 2, a serpentine condenser 3, a suction fan 4, a concealed venturi tube 5, an electrical compartment 6, an exhaust fan 7, a dust filter device 8, and related pipe fixing devices. The system uses a DN80 PVC pipe 1, with its lower end open to the atmosphere for easy air intake. The three-way filter 2 is effectively sealed to the PVC pipe 1 for initial air filtration. The serpentine condenser 3 is connected to the three-way filter 2 via the PVC pipe 1, and further cools the gas inside the pipe using circulating water. The suction fan 4 is connected to the condenser 3 via the PVC pipe 1 to accelerate airflow within the pipe. The concealed venturi tube 5 is welded to the exhaust port of the suction fan 4 using a flexible metal hose, facilitating adjustment of the airflow speed into the electrical compartment. The exhaust fan 7 is connected to the air outlet of the electrical compartment 6 to increase the rate of hot air exhaust. The dust filter device 8 further filters the exhaust gas; the filter screen can be reused by periodically cleaning the filter. Multiple electrical control cabinets are installed inside the electrical compartment 6, along with related cables and other data transmission lines. The air inlet is located at the bottom of the electrical compartment, and the air outlet is located at the top of the electrical compartment. A pipe hanging bracket is installed below the electrical compartment, and the cold air supply pipe is fixed on the pipe hanging bracket.

[0026] The internal Venturi tube 5 is made of 1mm thick steel plate through a single stretching process, ensuring its tensile strength meets production requirements. It is welded to the exhaust port of the suction fan 4 using a flexible metal hose. The position and length of the flexible metal hose can be customized according to actual needs. The Venturi tube device is simple and easy to maintain over time. Secondly, because its front and rear straight pipe sections are shorter than standard throttling devices (inlet diameter 80mm, outlet diameter 65mm), the diffuser section gradually slows the fluid, reducing turbulence and minimizing airflow resistance, preventing blockages during long-term use. This ensures the speed at which cold air enters the electrical compartment 4, guarantees sufficient time for temperature reduction, and prevents dust from flying. Example 2

[0027] Based on Embodiment 1, this embodiment further defines the control of cold air intake and hot air exhaust to provide a more detailed explanation of the technical solution.

[0028] A suction fan 4 is installed on the cold air supply duct to draw in outside air, which has been cooled by the condenser 3, and then deliver it into the electrical compartment 6. An exhaust fan 7 is installed on the exhaust duct to draw hot air out of the electrical compartment 6, which is then discharged into the factory building through a dust filter 8. This setup ensures the stability of the cooling and dust removal process and improves the cooling efficiency and quality of the electrical compartment 6. The suction fan 4 is an axial flow fan, and the exhaust fan 7 is a centrifugal fan, which is easy to install, occupies little space, and facilitates both air intake and exhaust.

[0029] The stability of the process equipment and cooling can be controlled by adjusting the fan speed and air pressure. The temperature inside the factory is greatly affected by the environment, so all fans are remotely controlled with dual speed settings. In spring and summer, when the ambient temperature is high, the fans are all set to high frequency. The suction fan 4 operates at 100Hz, achieving a flow rate of 0.8 m / s and a fan pressure of 1800 Pa in the electrical compartment 6. The fan 7 operates at 80Hz, achieving a flow rate of 0.4 m / s and a fan pressure of 1200 Pa in the dust filter 9. In autumn and winter, when the ambient temperature is low, the fans are all set to low frequency. The suction fan 4 operates at 50Hz, achieving a flow rate of 0.5 m / s and a fan pressure of 1400 Pa in the electrical compartment 6. The fan 7 operates at 40Hz, achieving a flow rate of 0.2 m / s and a fan pressure of 1000 Pa in the dust filter 9.

[0030] It is especially suitable for cooling electrical cabinets and cables installed in electrical compartments, ensuring that they do not malfunction due to excessive temperature. At the same time, it improves the working environment inside the electrical compartment and ensures the stability of production line control. Example 3

[0031] Based on Embodiments 1 and 2, this embodiment further explains and optimizes the water circulation and internal design of the condenser 6 to further reduce the temperature of the airflow entering the electrical compartment 6 during the process of air entering the electrical compartment 6 through heat exchange in the condenser 3.

[0032] Preferably, the cooling water inlet 31 of the serpentine condenser 3 is installed at the bottom and the cooling water outlet 32 ​​is installed at the top. Its air volume inlet and air volume outlet adopt a conical shape and are embedded and fastened to the PVC pipe 1. Both the cooling water inlet 31 and the cooling water outlet 32 ​​are connected to rubber hoses. The water inlet rubber hose is connected and fastened to the pressurized water pump and placed inside the water tank, and is completely submerged 50mm below the liquid surface. The circulation speed of the circulating water during operation is 0.2m / s.

[0033] The inner tube of the serpentine condenser 3 is made of glass to facilitate heat exchange, while the outer tube is made of stainless steel to prevent damage from external forces. The inner tube diameter is 65mm, and the tube spacing is 30mm. When airflow passes through the condenser, because the circulating water completely fills the condenser 3, there is ample time for heat exchange, further reducing the airflow temperature.

[0034] This invention is applicable to the natural cooling of the electrical compartment of steelmaking overhead cranes, and is particularly suitable for cooling electrical cabinets and cables installed inside the compartment, ensuring that they do not malfunction due to excessive temperature. It also improves the working environment inside the electrical compartment, ensuring the stability of production line control.

[0035] In this utility model, a fan provides power, allowing fresh external air to flow through PVC pipes, a three-way filter, a serpentine condenser, a built-in venturi tube, an electrical compartment, and a dust filter, forming a pathway for cold air to enter, cool, and exit. This design ensures that cold air enters the electrical compartment in an orderly and clean manner, and that hot air and indoor dust are drawn out in an orderly manner, improving the efficiency and quality of cooling the electrical components inside the electrical compartment and ensuring the stability of the cooling process.

[0036] On the other hand, supplying fresh air can also create a safe, environmentally friendly, and comfortable maintenance environment for equipment maintenance personnel, ensuring the health of employees.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cooling and dust removal system for an overhead crane electrical compartment, characterized in that: The device includes a PVC pipe (1), a three-way filter (2), a serpentine condenser (3), a blower (4), a built-in venturi tube (5), an electrical compartment (6), an exhaust fan (7), and a dust filter (8). The lower end of the PVC pipe (1) is connected to the atmosphere. The three-way filter (2) is sealed to the PVC pipe (1). The three-way filter (2), the serpentine condenser (3), and the blower (4) are connected in sequence through the PVC pipe (1). The built-in venturi tube (5) is connected to the exhaust port of the blower (4). The built-in venturi tube (5), the electrical compartment (6), and the exhaust fan (7) are connected in sequence. The dust filter (8) is connected to the outlet of the exhaust fan (7) through the PVC pipe (1).

2. The overhead crane electrical compartment cooling and dust removal system according to claim 1, characterized in that: The PVC pipe (1) is of type DN80.

3. The overhead crane electrical compartment cooling and dust removal system according to claim 1, characterized in that: The internal venturi tube (5) includes an inlet section (51), a constriction section (52), a throat (53), a diffuser section (54), and an outlet section (55). The inlet section (51) is welded to the exhaust port of the suction fan (4) through a metal hose. The diameter of the inlet section (51) is larger than the diameter of the outlet section (55).

4. The overhead crane electrical compartment cooling and dust removal system according to claim 3, characterized in that: The internal venturi tube (5) is made of 1mm thick steel plate, with an inlet section (51) diameter of 80mm and an outlet section (55) diameter of 65mm.

5. The overhead crane electrical compartment cooling and dust removal system according to claim 1, characterized in that: The electrical compartment (6) contains one or more electrical control cabinets and is equipped with data transmission lines. The air inlet is located at the bottom of the electrical compartment, and the air outlet is located at the top of the electrical compartment. A pipe hanging bracket is installed below the electrical compartment (6), and the cold air supply pipe is fixed on the pipe hanging bracket.

6. The overhead crane electrical compartment cooling and dust removal system according to claim 1, characterized in that: The inner tube of the serpentine condenser (3) is made of glass, and the outer tube is made of stainless steel. The serpentine condenser (3) is provided with a cooling water inlet (31) and a cooling water outlet (32). The cooling water inlet (31) is located below the main body of the serpentine condenser (3), and the cooling water outlet (32) is located above the main body of the serpentine condenser (3). The air volume inlet and air volume outlet of the serpentine condenser (3) are conical and are embedded in and fastened to the PVC pipe (1).

7. The overhead crane electrical compartment cooling and dust removal system according to claim 6, characterized in that: The cooling water inlet (31) and cooling water outlet (32) are both connected to rubber hoses. The rubber hose at the cooling water inlet (31) is connected and secured to the pressurized water pump and placed inside the water tank, and is completely submerged 50mm below the liquid surface. The circulation speed of the circulating water during operation is 0.2m / s.

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