Crown block air conditioner dust suppression device

Abstract

The utility model relates to a crown block air conditioner dust suppression device, and belongs to the technical field of dust removal equipment in the metallurgical industry. According to the technical scheme, a filter screen (2) is installed at an outlet of an integral air conditioner air outlet pipeline (7), and a dust suppression fan (9) is arranged on the inner side of the filter screen (2) in the integral air conditioner air outlet pipeline (7); the back-net pressure detector (3) and the front-net pressure detector (4) are respectively arranged on the outer side and the inner side of the filter screen (2), the micro differential pressure instrument (5) is connected between the back-net pressure detector (3) and the front-net pressure detector (4), and the micro differential pressure instrument (5) is connected with the differential pressure alarm buzzer (15) through the differential pressure alarm relay (14). The integral type air conditioner air outlet pipeline has the advantages of avoiding the situation that conductive dust enters an electric beam through the integral type air conditioner air outlet pipeline to cause more dust accumulation of electric equipment and frequent electric accidents, reducing the workload of daily dust removal and dust removal, and guaranteeing safe and stable operation of a crown block.

Description

Technical Field

[0001] This utility model relates to a dust suppression device for overhead crane air conditioning, belonging to the technical field of dust removal equipment in the metallurgical industry. Background Technology

[0002] In metallurgical enterprises, materials are typically transported within the plant using mobile overhead cranes. Modern large overhead cranes utilize temperature-sensitive, high-heat-generating silicon controlled rectifier (SCR) components. However, steel mills are characterized by high temperatures and dust. Coupled with environmental protection requirements, steel mills are currently fully enclosed with poor ventilation. In summer, the ambient temperature inside the plant can exceed 50 degrees Celsius. To ensure cooling efficiency, the 450-ton overhead crane electrical beam in the steel mill uses two 24-horsepower high-temperature integrated air conditioners. However, integrated air conditioners have a drawback: the air conditioning unit is installed on the overhead crane beam, cooling the electrical beam through suction and exhaust ducts. Due to the high dust levels, inadequate sealing of the integrated air conditioning unit, and frequent disassembly for inspection, a significant amount of dust enters the electrical beam through the unit and exhaust ducts. This results in a large amount of conductive dust on the electrical equipment within the beam, severely impacting the stable operation of the overhead crane's electrical equipment. This frequently leads to various production-affecting malfunctions, and requires regular maintenance to clean and remove dust from the electrical beam equipment, significantly increasing workload and severely hindering stable production. Therefore, solving the problem of dust entering the electrical beams through the air conditioning duct has become an urgent issue. Summary of the Invention

[0003] The purpose of this utility model is to provide a dust suppression device for overhead crane air conditioning. By using a filter screen and supporting facilities at the air outlet of the integrated air conditioning duct, conductive dust is prevented from entering the electrical beam through the air outlet of the integrated air conditioning duct, which would otherwise cause excessive dust accumulation in the electrical equipment and frequent electrical accidents. This reduces the workload of daily dust removal and ensures the safe and stable operation of the overhead crane, thus solving the aforementioned problems in the background technology.

[0004] The technical solution of this utility model is: a dust suppression device for overhead crane air conditioning, comprising a filter screen, a pressure detector behind the filter screen, a pressure detector before the filter screen, a differential pressure gauge, a dust suppression fan, a differential pressure alarm relay, and a differential pressure alarm buzzer. The filter screen is installed at the outlet of the integrated air conditioning duct, and the dust suppression fan is located inside the filter screen in the integrated air conditioning duct. The pressure detector behind the filter screen and the pressure detector before the filter screen are respectively located on the outside and inside of the filter screen. The differential pressure gauge is connected between the pressure detector behind the filter screen and the pressure detector before the filter screen, and the differential pressure gauge is connected to the differential pressure alarm buzzer through the differential pressure alarm relay.

[0005] The filter is a plug-in, replaceable filter.

[0006] The dust suppression fan is connected to the normally open contact of the air conditioner via a dust suppression fan contactor.

[0007] The differential pressure gauge is connected to the differential pressure alarm relay via its normally open contact, and the differential pressure alarm relay is connected to the differential pressure alarm buzzer via its normally open contact.

[0008] The beneficial effects of this utility model are: by using a filter screen and supporting facilities at the air outlet of the integrated air conditioning duct, conductive dust is prevented from entering the electrical beam through the air outlet of the integrated air conditioning duct, which would cause excessive dust accumulation in electrical equipment and frequent electrical accidents. This reduces the workload of daily dust removal and ensures the safe and stable operation of the overhead crane. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 This is the circuit connection diagram of this utility model;

[0011] In the diagram: 1. Integrated air conditioning intake duct; 2. Filter screen; 3. Pressure detector behind the filter screen; 4. Pressure detector before the filter screen; 5. Micro differential pressure gauge; 6. Integrated air conditioner; 7. Integrated air conditioning outlet duct; 8. Electrical beam; 9. Dust suppression fan; 10. Normally open contact for air conditioning operation; 11. Normally open contact for micro differential pressure gauge; 12. Normally open contact for differential pressure alarm relay; 13. Dust suppression fan contactor; 14. Differential pressure alarm relay; 15. Differential pressure alarm buzzer. Detailed Implementation

[0012] 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.

[0013] A dust suppression device for overhead crane air conditioning includes a filter screen 2, a pressure detector behind the filter screen 3, a pressure detector in front of the filter screen 4, a differential pressure meter 5, a dust suppression fan 9, a differential pressure alarm relay 14, and a differential pressure alarm buzzer 15. The filter screen 2 is installed at the outlet of an integrated air conditioning duct 7, and the dust suppression fan 9 is located inside the filter screen 2 in the integrated air conditioning duct 7. The pressure detector behind the filter screen 3 and the pressure detector in front of the filter screen 4 are respectively located on the outside and inside of the filter screen 2. The differential pressure meter 5 is connected between the pressure detector behind the filter screen 3 and the pressure detector in front of the filter screen 4, and the differential pressure meter 5 is connected to the differential pressure alarm buzzer 15 through the differential pressure alarm relay 14.

[0014] The filter screen 2 is a plug-in replaceable filter screen.

[0015] The dust suppression fan 9 is connected to the normally open contact 10 of the air conditioner via the dust suppression fan contactor 13.

[0016] The differential pressure instrument 5 is connected to the differential pressure alarm relay 14 through the normally open contact 11 of the differential pressure instrument, and the differential pressure alarm relay 14 is connected to the differential pressure alarm buzzer 15 through the normally open contact 12 of the differential pressure alarm relay.

[0017] In this invention, a pluggable replaceable filter is installed at the air outlet of the integrated air conditioning duct to filter out conductive dust from the air outlet. Considering that the filter installation creates air resistance and reduces airflow, thus affecting cooling performance, a dust suppression fan is installed inside the filter to increase airflow and improve cooling efficiency. Simultaneously, to prevent excessive dust from clogging the filter and causing poor cooling, a pressure detector before and after the filter is installed on both the inner and outer sides. A differential pressure gauge sends a filter clogging signal to a differential pressure alarm relay, which then controls a differential pressure alarm buzzer to sound, prompting maintenance personnel to replace the filter.

[0018] In practical applications, the normally open contact 10 of the air conditioner closes to control the dust suppression fan contactor 13 to operate. The cold air from the integrated air conditioner outlet duct 7 passes through the filter screen 2 to remove conductive dust before entering the electrical beam 8 for cooling. When the conductive dust adsorbed by the filter screen 2 reaches a certain level, affecting the air conditioning ventilation and thus the cooling effect, the differential pressure gauge 5 detects the pressure difference across the filter screen 2 through the pressure detectors 4 and 3 connected to the inside and outside of the filter screen 2. When the differential pressure gauge 5 detects a large pressure difference across the filter screen, its normally open contact 11 closes to send a blockage signal to the differential pressure alarm relay 14. The normally open contact 12 of the differential pressure alarm relay closes to control the differential pressure alarm buzzer 15 to sound a signal, prompting maintenance personnel to replace the filter screen.

Claims

1. A dust suppression device for overhead crane air conditioning, characterized in that: The device includes a filter screen (2), a pressure detector behind the filter screen (3), a pressure detector in front of the filter screen (4), a differential pressure meter (5), a dust suppression fan (9), a differential pressure alarm relay (14), and a differential pressure alarm buzzer (15). The filter screen (2) is installed at the outlet of the integrated air conditioning duct (7), and the dust suppression fan (9) is located inside the filter screen (2) in the integrated air conditioning duct (7). The pressure detector behind the filter screen (3) and the pressure detector in front of the filter screen (4) are respectively located on the outside and inside of the filter screen (2). The differential pressure meter (5) is connected between the pressure detector behind the filter screen (3) and the pressure detector in front of the filter screen (4). The differential pressure meter (5) is connected to the differential pressure alarm buzzer (15) through the differential pressure alarm relay (14).

2. The dust suppression device for overhead crane air conditioning according to claim 1, characterized in that: The filter screen (2) is a plug-in replaceable filter screen.

3. The dust suppression device for overhead crane air conditioning according to claim 1, characterized in that: The dust suppression fan (9) is connected to the normally open contact (10) of the air conditioner through the dust suppression fan contactor (13).

4. The dust suppression device for overhead crane air conditioning according to claim 1, characterized in that: The differential pressure instrument (5) is connected to the differential pressure alarm relay (14) through the normally open contact (11) of the differential pressure instrument, and the differential pressure alarm relay (14) is connected to the differential pressure alarm buzzer (15) through the normally open contact (12) of the differential pressure alarm relay.

Images