A crown block cooling system for a hot zone environment

Abstract

The present application belongs to the technical field of crown block equipment, and discloses a crown block cooling system in a hot environment. The system comprises a ventilation system and a condensate water system. The ventilation system is installed on the horizontal side of the top of the workshop, and is arranged corresponding to the air conditioner on the crown block. The condensate water system is installed in the crown block and is arranged in connection with the air conditioner. The present application introduces external low-temperature air and performs directional strong wind cooling on the crown block air conditioner, effectively reduces the ambient temperature of the air conditioner, fundamentally avoids the thermal protection shutdown triggered by high temperature, and ensures the continuous and stable operation of the crown block in the hot environment. At the same time, the system innovatively recycles the condensate water generated by the air conditioner and uses it to enhance ventilation and cooling, realizing the recycling of water resources. Not only the overall cooling efficiency is significantly improved, but also the accumulated water and safety hazards caused by the ground discharge of condensate water are eliminated.

Description

Technical Field

[0001] This invention belongs to the field of overhead crane equipment technology, and in particular to an overhead crane cooling system for hot environments. Background Technology

[0002] In steelmaking plants, the high ambient temperature in the electric arc furnace area causes the air conditioning compressors to easily trigger thermal protection, resulting in the air conditioning in the driver's cab and electrical room malfunctioning. Because the hot air rises from the workshop, the overhead crane remains at a high temperature, preventing it from cooling down, and the outdoor air conditioning units fail to start due to the excessively high ambient temperature. Simultaneously, when the air conditioning compressor operates at high power for extended periods in high-temperature environments, the amount of condensate produced increases. Currently, the condensate from overhead crane air conditioning is typically drained directly to the ground, easily leading to water accumulation at the crane's parking position. Sometimes, this overflows from storage containers and drips into the ladles, posing a safety risk or accident. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a crane cooling system for hot environments.

[0004] The technical solution adopted by this invention to solve its technical problem is: A crane cooling system for hot environments includes a ventilation system and a condensate system. The ventilation system is installed on the horizontal side of the workshop top, corresponding to the air conditioning unit on the crane. The condensate system is installed in the crane and connected to the air conditioning unit. The ventilation system includes a first air inlet pipe, an air intake fan, a second air inlet pipe, and a ventilation outlet. The first air inlet pipe is installed outside the workshop, and its inlet is connected to the ambient air. The air intake fan is installed inside the first air inlet pipe and can draw ambient air into it. The outlet of the first air inlet pipe is connected to the inlet of the second air inlet pipe. The diameter of the first air inlet pipe is larger than that of the second air inlet pipe. The outlet of the second air inlet pipe is connected to the ventilation outlet. The ventilation outlet is installed directly above the air conditioning unit on the crane when it is in the cooling zone, and can provide ventilation and cooling to the air conditioning unit. The condensate system includes an air conditioning water pipe, a water level tank, a drain pipe, and a cleaning water tank. The inlet of the air conditioning water pipe is connected to the air conditioner on the overhead crane, and the air conditioning water pipe can collect and guide the condensate generated by the air conditioner to flow out. The inlet of the water level tank is connected to the outlet of the air conditioning water pipe, and the outlet of the water level tank is connected to the drain pipe. The water level tank is equipped with a water level mark, and the water level tank can detect the water level in the tank through the water level mark, thereby detecting and measuring the amount of condensate in the condensate system. The first outlet of the drain pipe is connected to the cleaning water tank, and the second outlet of the drain pipe is connected to an external water pool. The cleaning water tank is installed in the driver's cab and can provide a water source for cleaning the driver's cab of the overhead crane.

[0005] Furthermore, the system also includes a condensate spray nozzle, which is installed on the first air inlet pipe and positioned between the air inlet fan and the air outlet of the first air inlet pipe. The condensate spray nozzle is connected to an external water tank, and condensate can be sprayed into the first air inlet pipe through the condensate spray nozzle. The first air inlet pipe is inclined downward in the horizontal direction.

[0006] Furthermore, the first air inlet pipe is inclined downward at a 5° angle along the horizontal direction, and the inclination of the first air inlet pipe allows the sprayed condensate to be discharged to the outside.

[0007] The usage method of the system as described above includes the following steps: (1) When the crane finishes its work or the air conditioner on the crane is overheated, the crane is moved to the crane cooling area in the workshop for cooling. The fan in the first air inlet pipe of the ventilation system drives the air into the first air inlet pipe. The air enters the second ventilation pipe through the first air inlet pipe. Since the diameter of the first air inlet pipe is larger than that of the second air inlet pipe, the air temperature will decrease and the flow rate will increase when it flows into the second air inlet pipe. Then, the air is blown out through the ventilation outlet to cool the air conditioner below, ensuring that the air conditioner will not be in the overheat protection state, or accelerating the cooling of the air conditioner to avoid the overheat protection time being too long. (2) When the air conditioner is continuously cooling, a large amount of cooling water produced by the air conditioner is discharged into the water level tank through the air conditioner water pipe, and then flows into the clean water tank through the drain pipe. (3) When the condensate is full of the cleaning water tank, the water level tank will be at the first water level. At the same time, the crane will stop intermittently for cooling to avoid the air conditioner from overheating due to long-term operation. Excess condensate will no longer flow into the cleaning water tank, but into the external water pool. The external water pool will then pass the condensate through the pipe into the condensate spray nozzle of the ventilation system, intermittently spraying a small amount of water into the air in the pipe. The amount of water sprayed should not cause water droplets to clump in the pipe, thereby further improving the cooling efficiency of the ventilation system, reducing the load of the air conditioner, avoiding overheating protection, and preventing water from accumulating in the pipe or a large amount of water from entering the air conditioner and causing circuit damage. (4) When the water level in the water tank is at the second water level, it indicates that the air conditioner temperature is too high. The crane will stop to cool down, so as to prevent the crane from heating up further and causing the air conditioner to enter the overheat protection and stop, thus reducing the crane's downtime.

[0008] The advantages and positive effects of this invention are as follows: 1. This invention effectively reduces the ambient temperature around the overhead crane's air conditioning system by introducing external low-temperature air and providing directional forced-air cooling. This fundamentally avoids thermal protection shutdowns triggered by high temperatures, ensuring the continuous and stable operation of the crane in hot environments. Simultaneously, the system innovatively recycles the condensate generated by the air conditioning system and uses it to enhance ventilation and cooling, achieving water resource recycling. This not only significantly improves overall cooling efficiency but also eliminates water accumulation and safety hazards caused by condensate discharge onto the ground. Furthermore, through the intelligent monitoring function of the water level tank, the system can intuitively reflect the equipment status and issue warnings, guiding operators to rationally schedule cooling intervals, thereby minimizing unplanned downtime and comprehensively improving the crane's operational efficiency and safety.

[0009] 2. This invention, through the setting of the water level tank, allows operators to judge the current working status of the overhead crane's air conditioning by observing changes in the water level in the tank, and indirectly judge the current temperature of the overhead crane. When the water level is below the first water level, the overhead crane is in normal condition. When the water level in the tank is between the first and second water levels, the overhead crane is in a high-temperature state, and the overhead crane will intermittently stop to cool down. When the water level in the tank is at the second water level, the overhead crane is in a high-temperature state, and the overhead crane temperature is too high, requiring shutdown to cool down. If it continues to operate, the air conditioning will enter the overheat protection state and shut down, causing the overhead crane to heat up further, thus creating a danger. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structural connection of the ventilation system of the present invention; Figure 2 This is a schematic diagram of the structural connection of the condensate system of the present invention; Figure 3 This is a photograph of the actual ventilation system of the present invention. Detailed Implementation

[0011] The present invention will be further described below with reference to the embodiments. The following embodiments are descriptive and not limiting, and should not be used to limit the scope of protection of the present invention.

[0012] The various experimental operations involved in the specific embodiments are all conventional techniques in the field. For parts not specifically annotated in this document, those skilled in the art can refer to various commonly used reference books, scientific and technological documents or related instructions and manuals prior to the filing date of this invention to carry out the operations.

[0013] A crane cooling system for hot environments, such as Figure 1 and Figure 2As shown, the system includes a ventilation system and a condensate system. The ventilation system is installed on the horizontal side of the workshop roof, corresponding to the air conditioner 10 on the overhead crane 11. The condensate system is installed in the overhead crane and connected to the air conditioner 10. The ventilation system includes a first air inlet duct 1, an air intake fan 2, a second air inlet duct 3, and a ventilation outlet 4. The first air inlet duct is installed outside the workshop, and its inlet 1-1 is connected to the external ambient air. The air intake fan is installed inside the first air inlet duct and can draw external ambient air into it. The air outlet of the first air inlet duct... 1-2 is connected to the air inlet 2-1 of the second air inlet pipe. The diameter of the first air inlet pipe is larger than that of the second air inlet pipe. The air outlet 2-2 of the second air inlet pipe is connected to the ventilation outlet. The ventilation outlet is installed directly above the air conditioner in the overhead crane when the crane is in the cooling zone. The ventilation outlet can discharge air to the air conditioner and perform ventilation and cooling operations. Since the diameter of the first air inlet pipe is larger than that of the second air inlet pipe, the air temperature will decrease and the flow rate will increase when it flows into the second air inlet pipe. Then, the air will be discharged through the ventilation outlet to cool the overhead crane, improve the cooling efficiency, and further prevent the air conditioner from entering the heat protection state. like Figure 2 As shown, the condensate system includes an air conditioning water pipe 5, a water level tank 6, a drain pipe 7, and a cleaning water tank 8. The inlet of the air conditioning water pipe is connected to the air conditioner 10 on the overhead crane. The air conditioning water pipe can collect and guide the condensate generated by the air conditioner to flow out. The inlet of the water level tank is connected to the outlet of the air conditioning water pipe. The outlet of the water level tank is connected to the drain pipe. The water level tank is equipped with a water level mark. The water level tank can detect the water level in the tank through the water level mark, and then detect and measure the amount of condensate in the condensate system. The first outlet 7-1 of the drain pipe is connected to the cleaning water tank, and the second outlet 7-2 of the drain pipe is connected to an external water pool to facilitate the removal of excess cooling water in the cooling water. The cleaning water tank is installed in the driver's cab to provide a water source for cleaning the driver's cab of the overhead crane, which is convenient for cleaning.

[0014] This invention effectively reduces the ambient temperature around the overhead crane's air conditioning system by introducing low-temperature external air and providing directional forced-air cooling. This fundamentally avoids thermal protection shutdowns triggered by high temperatures, ensuring the crane's continuous and stable operation in hot environments. Simultaneously, the system innovatively recycles the condensate generated by the air conditioning system and uses it to enhance ventilation and cooling, achieving water resource recycling. This not only significantly improves overall cooling efficiency but also eliminates water accumulation and safety hazards caused by condensate discharge onto the ground. Furthermore, through the intelligent monitoring function of the water level tank, the system can intuitively reflect the equipment status and issue warnings, guiding operators to rationally schedule cooling intervals, thereby minimizing unplanned downtime and comprehensively improving the crane's operational efficiency and safety.

[0015] In this embodiment, the system further includes condensate spray nozzles 1-3. The condensate spray nozzles are installed on the first air inlet pipe and positioned between the air inlet fan and the air outlet of the first air inlet pipe. The condensate spray nozzles are connected to an external water tank. Condensate can be sprayed into the first air inlet pipe through the condensate spray nozzles to further reduce the air temperature and improve the cooling efficiency. The first air inlet pipe is inclined downwards in the horizontal direction, preferably at an angle of 5°. The inclination direction of the first air inlet pipe allows the sprayed condensate to be discharged to the outside, preventing condensate from accumulating inside the pipe and affecting its use.

[0016] The method of using the system as described above includes the following steps: (1) When the crane finishes its work or the air conditioner on the crane is overheated, the crane is moved to the crane cooling area in the workshop for cooling. The fan in the first air inlet pipe of the ventilation system drives the air into the first air inlet pipe. The air enters the second ventilation pipe through the first air inlet pipe. Since the diameter of the first air inlet pipe is larger than that of the second air inlet pipe, the air temperature will decrease and the flow rate will increase when it flows into the second air inlet pipe. Then, the air is blown out through the ventilation outlet to cool the air conditioner below, ensuring that the air conditioner will not be in the overheat protection state, or accelerating the cooling of the air conditioner to avoid the overheat protection time being too long. (2) When the air conditioner is continuously cooling, a large amount of cooling water produced by the air conditioner is discharged into the water level tank through the air conditioner water pipe, and then flows into the clean water tank through the drain pipe. (3) When the condensate is full of the cleaning water tank, the water level tank will be at the first water level. At the same time, the crane will stop intermittently for cooling to avoid the air conditioner from overheating due to long-term operation. Excess condensate will no longer flow into the cleaning water tank, but into the external water pool. The external water pool will then pass the condensate through the pipe into the condensate spray nozzle of the ventilation system, intermittently spraying a small amount of water into the air in the pipe. The amount of water sprayed should not cause water droplets to clump in the pipe, thereby further improving the cooling efficiency of the ventilation system, reducing the load of the air conditioner, avoiding overheating protection, and preventing water from accumulating in the pipe or a large amount of water from entering the air conditioner and causing circuit damage. (4) When the water level in the water tank is at the second water level, it indicates that the air conditioner temperature is too high. The crane will stop to cool down, so as to prevent the crane from heating up further and causing the air conditioner to enter the overheat protection and stop, thus reducing the crane's downtime.

[0017] This invention, through the setting of a water level tank, allows operators to determine the current operating status of the overhead crane's air conditioning system and indirectly determine the current temperature of the overhead crane by observing changes in the water level. When the water level is below the first level, the overhead crane is in normal operation. When the water level is between the first and second levels, the overhead crane is in a high-temperature state, and the overhead crane will intermittently stop to cool down. When the water level is at the second level, the overhead crane is in a high-temperature state, and the overhead crane temperature is too high, requiring shutdown for cooling. If operation is resumed, the air conditioning system will enter overheat protection mode and shut down, causing the overhead crane to heat up further and creating a danger.

[0018] Although embodiments of the invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations, and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the scope of the invention is not limited to the contents disclosed in the embodiments.

Claims

1. A crane cooling system for hot environments, characterized in that: The system includes a ventilation system and a condensate system. The ventilation system is installed on the horizontal side of the workshop top, corresponding to the air conditioning unit on the overhead crane. The condensate system is installed in the overhead crane and connected to the air conditioning unit. The ventilation system includes a first air inlet pipe, an air intake fan, a second air inlet pipe, and a ventilation outlet. The first air inlet pipe is installed outside the workshop, and its inlet is connected to the ambient air. The air intake fan is installed inside the first air inlet pipe and can draw ambient air into it. The outlet of the first air inlet pipe is connected to the inlet of the second air inlet pipe, and the diameter of the first air inlet pipe is larger than that of the second air inlet pipe. The outlet of the second air inlet pipe is connected to the ventilation outlet. The ventilation outlet is installed directly above the air conditioning unit on the overhead crane when it is in the cooling zone, and can supply air to the air conditioning unit for ventilation and cooling. The condensate system includes an air conditioning water pipe, a water level tank, a drain pipe, and a cleaning water tank. The inlet of the air conditioning water pipe is connected to the air conditioner on the overhead crane, and the air conditioning water pipe can collect and guide the condensate generated by the air conditioner to flow out. The inlet of the water level tank is connected to the outlet of the air conditioning water pipe, and the outlet of the water level tank is connected to the drain pipe. The water level tank is equipped with a water level mark, and the water level tank can detect the water level in the tank through the water level mark, thereby detecting the amount of condensate in the condensate system. The first outlet of the drain pipe is connected to the cleaning water tank, and the second outlet of the drain pipe is connected to an external water pool. The cleaning water tank is installed in the driver's cab and can provide a water source for cleaning the driver's cab of the overhead crane. The system also includes a condensate spray nozzle, which is installed on the first air inlet pipe and located between the air inlet fan and the air outlet of the first air inlet pipe. The condensate spray nozzle is connected to an external water tank and can spray condensate into the first air inlet pipe through the condensate spray nozzle. The first air inlet pipe is inclined downward in the horizontal direction. When the condensate tank is full, the water level tank will be at the first level. At the same time, the overhead crane will stop intermittently for cooling to prevent the air conditioner from overheating due to prolonged operation. Excess condensate will no longer flow into the cleaning water tank but into the external water tank. The external water tank will then pipe the condensate to the condensate spray nozzles in the ventilation system, intermittently spraying a small amount of water into the air in the pipes. The amount of water sprayed is just enough not to cause water droplets to clump together in the pipes, further improving the cooling efficiency of the ventilation system, reducing the load on the air conditioner, avoiding overheating protection, and preventing water from accumulating in the pipes or large amounts of water from entering the air conditioner and causing circuit damage. When the water level in the water tank reaches the second level, it indicates that the air conditioning temperature is too high. The overhead crane will then stop to cool down, preventing the crane from overheating and causing the air conditioning to activate its overheat protection and shut down, thus reducing the crane's downtime.

2. The system according to claim 1, characterized in that: The first air inlet pipe is inclined downward at a 5° angle along the horizontal direction, and the inclination of the first air inlet pipe allows the sprayed condensate to be discharged to the outside.

3. The method of using the system according to claim 1, characterized in that: Includes the following steps: (1) When the crane finishes its work or the air conditioner on the crane is overheated, the crane is moved to the crane cooling area in the workshop for cooling. The fan in the first air inlet pipe of the ventilation system drives the air into the first air inlet pipe. The air enters the second air inlet pipe through the first air inlet pipe. Since the diameter of the first air inlet pipe is larger than that of the second air inlet pipe, the air temperature will decrease and the flow rate will increase when it flows into the second air inlet pipe. Then, the air is blown out through the ventilation outlet to cool the air conditioner below, ensuring that the air conditioner will not be in the overheat protection state, or accelerating the cooling of the air conditioner to avoid the overheat protection time being too long. (2) When the air conditioner is continuously cooling, a large amount of condensate produced by the air conditioner is discharged into the water level tank through the air conditioner water pipe, and then flows into the clean water tank through the drain pipe.

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