Evaporative industrial cold air cooling system

Abstract

The utility model discloses an evaporation type industrial cold air cooling system which comprises a water chilling unit, a heat preservation water tank for supplying water to the water chilling unit and an evaporation type air cooler, the evaporation type air cooler comprises a water curtain and a fan arranged at the bottom of the evaporation type air cooler, and an air pipe is arranged at an outlet of the fan and communicated with the inside of a workshop. The water chilling unit is communicated with the evaporative air cooler through a water feeding pipeline, the evaporative air cooler is communicated with the heat preservation water tank through a water return pipeline, the evaporative air cooler and the water chilling unit are combined for use, the evaporative cooling effect of a water curtain and the refrigeration effect of the water chilling unit are utilized, and the more efficient cooling effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial refrigeration, and particularly relates to an evaporative industrial cold air cooling system. Background Art

[0002] At present, the cooling of production workers in industrial workshops mainly adopts the following methods: ①ventilation and cooling by window exhaust fans, ②cooling by in-position axial fans, ③cooling by industrial fans, and ④cooling by air conditioners.

[0003] ①Ventilation and cooling by window exhaust fans

[0004] This method installs exhaust fans on the workshop walls or windows to extract hot air outdoors, and fresh air flows in from the other side windows, achieving a cooling effect through repeated circulation.

[0005] Disadvantages and deficiencies of ventilation and cooling by window exhaust fans:

[0006] (1) This cooling method cannot organize a reasonable pressure field and air flow path, so true air replacement cannot be achieved. Especially for tall factories, the formed air flow velocity is very low and cannot take away the heat on the human body surface.

[0007] (2) In the seasons when cooling is required, the outdoor temperature is usually higher than the indoor temperature. When the exhaust fans are working, they will introduce high-temperature outdoor air into the workshop and cannot reduce the overall temperature of the workshop environment.

[0008] (3) Generally, a large number of window exhaust fans need to be installed, resulting in high energy consumption and noise. Currently, this method is rarely used in modern industrial factories.

[0009] ②Cooling by in-position axial fans

[0010] This method places axial fans near the work positions and directly blows high-speed airflows towards the human body to take away the heat on the human body through the airflows.

[0011] Disadvantages and deficiencies of cooling by in-position axial fans:

[0012] (1) In a dry and high-temperature environment, the airflows blown by the fans are also high-temperature airflows. People will feel cool in a short time, but after blowing for a long time, the evaporation of moisture on the skin surface is greatly reduced, and the body temperature cannot be reduced through the evaporation of skin moisture. Instead, people will feel that the blown air is hot and the longer they blow, the hotter they feel.

[0013] (2) Generally, the power of in-position axial fans in the workshop is relatively large. The motors of the fans will generate heat radiation during operation, and heat will also be generated by the wind jet and eddy current friction. All these will increase the environmental temperature. Currently, it is still widely used in heavy industrial factories and production workshops. In the hot summer, it is common for front-line production workers to suffer from heat stroke and reduce the workforce.

[0014] ③Cooling by industrial fans

[0015] This method is to hoist industrial fans, namely industrial ceiling fans, on the beams at the top of the factory building. Generally, they are of large size. The cooling principle is also to use the generated air flow to blow over the human body surface, and the heat is taken away by accelerating the evaporation of moisture on the skin surface to produce a cooling effect.

[0016] Disadvantages and deficiencies of industrial fan cooling:

[0017] (1) Since this kind of fan is of large size, it is only suitable for workshops that are open and have no crane operations. It cannot be installed in factories with compact production lines and high space utilization rates.

[0018] (2) Since it is to use high-speed air flow to take away heat through the human body surface for cooling, similarly, in a dry and high-temperature environment, the air flow blown by the fan is also high-temperature air flow. The human body will feel cool in a short time, but after blowing for a long time, the evaporation of moisture on the skin surface by the high-speed air flow is greatly reduced, and the body temperature cannot be reduced by the evaporation of skin moisture, so it will feel like blowing hot air, and the cooling effect is not ideal.

[0019] ④ Cooling by air conditioner

[0020] This kind of cooling method is through the refrigeration method of the compressor. First, the air is compressed to a certain pressure and then released. The gas absorbs heat during the release process to lower the air temperature, and is discharged from the cold air outlet set on the upper part of the machine body. Generally, the air conditioner is of small volume, and the cold air outlet is not externally connected to a pipeline. It is placed near the production line work posts to cool the posts and the surrounding areas.

[0021] Disadvantages and deficiencies of air conditioner cooling:

[0022] (1) The refrigerating capacity is small, the air volume is small, the affected area is small, the cooling effect is not ideal, and the regional cooling is slow. The heat generated during the operation of the compressor is also discharged into the workshop from the top of the air conditioner, increasing the workshop environmental temperature. For workshops with intensive posts, a large number of air conditioners are required, increasing the investment cost.

[0023] (2) Since it is to cool the entire post area as a whole, including the area where no one is active, it causes waste of cold air in the area where no one is active.

[0024] Air conditioners are only suitable for factories with low dust concentration such as light industry workshops. For factories with high dust concentration such as heavy industry, the accumulated dust will cause a significant reduction in the heat transfer effect, resulting in icing and burning of the heat exchanger, or blocking the pipeline and causing the fan to be overloaded, ultimately leading to the shutdown of the air conditioning system. Content of the utility model

[0025] To solve the above problems, the present utility model provides an evaporative industrial cold air cooling system, which solves the problems of difficult heat prevention and cooling for front-line production personnel in the industrial field due to the harsh production environment, and the reduction of front-line production staff and personnel loss caused by high temperature and heat, enabling front-line production personnel to also enjoy clean and fresh cold air, reducing the temperature in the post area, ensuring the physical health of workers, and improving the working environment.

[0026] The technical solution provided by the present utility model is as follows:

[0027] An evaporative industrial cold air cooling system includes a water chiller, a heat preservation water tank for supplying water to the water chiller, and an evaporative air cooler;

[0028] The evaporative air cooler includes a water curtain and a fan arranged at the bottom of the evaporative air cooler. An air duct is provided at the outlet of the fan and is communicated to the inside of the workshop;

[0029] The water chiller is communicated with the evaporative air cooler through an upper water pipeline, and the evaporative air cooler is communicated with the heat preservation water tank through a return water pipeline.

[0030] In some embodiments, the evaporative air cooler is suspended and installed on the workshop wall through a bracket.

[0031] In some embodiments, the air duct has a plurality of air outlets, and the air outlets are located above the operation table.

[0032] In some embodiments, the air duct is a PP heat preservation and flame retardant air duct.

[0033] In some embodiments, the water chiller includes a compressor, a condenser communicated with the compressor, an evaporative coil communicated with the condenser, and a cold water tank. The evaporative coil is communicated with the compressor, and a water pump is arranged in the cold water tank and is communicated with the evaporative air cooler.

[0034] In summary, the beneficial effects of the present utility model are as follows:

[0035] (1) The structure of the present utility model is simple. By combining the evaporative air cooler with the water chiller and utilizing the evaporation cooling effect of the water curtain and the refrigeration effect of the water chiller, a more efficient cooling effect is achieved. The evaporative air cooler can directly deliver the cooled air to the working positions in the workshop, quickly reducing the temperature in the post area. And since the air duct air outlets are arranged near the operation table, it can cool the working area more precisely without wasting in the unmanned activity area, improving the utilization rate and efficiency of the system.

[0036] (2) The utility model adopts a heat preservation water tank and a PP heat preservation and flame retardant air duct, further reducing energy loss and fire risks, making the system not only have good cooling performance, but also have safety and energy-saving effects. At the same time, one evaporative air cooler can be used by multiple posts through the air duct, with a large coverage area, reducing investment, usage costs and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic plan view of the utility model;

[0038] Figure 2 is a schematic elevation view of the utility model;

[0039] Figure 3 is a schematic working principle diagram of the utility model.

[0040] The reference numerals are as follows:

[0041] 1, chiller; 2, heat preservation water tank; 3, evaporative air cooler; 4, air duct; 5, water supply pipeline; 6, water return pipeline; 7, bracket; 8, wall; 9, air outlet; 10, operation platform; 11, compressor; 12, condenser; 13, evaporation coil; 14, cold water tank; 15, water pump;

[0042] 31, water curtain; 32, fan. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] In order to deepen the understanding of the utility model, the following will further elaborate on the utility model in combination with the embodiments and drawings. The embodiments are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0044] As Figures 1-3 shown, an evaporative industrial cold air cooling system includes a chiller 1, a heat preservation water tank 2 for supplying water to the chiller 1, and an evaporative air cooler 3.

[0045] Among them, the chiller 1 and the heat preservation water tank 2 are installed outside the workshop and are respectively connected to the evaporative air cooler 3 through the water supply pipeline 5 and the water return pipeline 6. The chiller 1 includes a compressor 11, a condenser 12, an evaporation coil 13, and a cold water tank 14. The condenser 12 can be air-cooled or water-cooled. A water pump 15 is provided in the cold water tank 14 and is connected to the evaporative air cooler 3. During refrigeration, the compressor 11 compresses the refrigerant into a gaseous state. The gaseous refrigerant releases heat through the condenser 12 and condenses into a liquid. After throttling and depressurizing through an expansion valve, it becomes a low-temperature and low-pressure liquid and enters the evaporation coil 13. During the process of gradually vaporizing in the evaporation coil 13, it absorbs heat, completes the heat exchange with the water in the water tank, cools the water in the cold water tank 14 from normal temperature to chilled water, and the vaporized refrigerant is sucked into the compressor to be pressurized again, completing the refrigerant cycle process.

[0046] The evaporative air cooler 3 is suspended on the workshop wall 8 through a bracket 7, and includes a water curtain 31 and a fan 32 arranged at the bottom of the evaporative air cooler 3. An air duct 4 is provided at the outlet of the fan 32 and communicated into the workshop.

[0047] Specifically, flame-retardant porous water curtains 31 are installed on all four vertical surfaces of the evaporative air cooler 3. The water pump 15 transports the chilled water in the chilled water tank 14 to the evaporative air cooler 3. The low-temperature chilled water enters from the upper part of the water curtain 31 and flows out from the lower part, and returns to the heat preservation water tank 2 through the return water pipeline 6. After precipitation and filtration, it is reused again to complete a working cycle.

[0048] When the evaporative air cooler 3 is working, when air flows through the surface of the porous and wet water curtain 31, a large amount of water evaporates, and the sensible heat reflected by the temperature in the air is converted into latent heat of evaporation, thereby reducing the temperature of the air itself. The air duct 4 has a plurality of air outlets 9, and the air outlets 9 are located above the operating table 10. The fan 32 at the bottom of the evaporative air cooler 3 sends the cold air to the working positions through the air duct 4 and the air outlets 9.

[0049] As another implementation manner of further optimization, the air duct 4 is a PP heat preservation and flame-retardant air duct, which can ensure the safety of the equipment. The PP heat preservation and flame-retardant air duct 4 can be directly arranged above or near the workers, and the length can be extended by 15 - 40 meters according to actual needs. A plurality of air outlets 9 are arranged on the air duct 4 according to the number of people in the positions, and the air outlets are directed at the workers, making the cooling area more accurate and effective. One evaporative air cooler in this embodiment can be used for multiple positions through the air duct 4, with a large coverage area, reducing investment, usage costs, and energy consumption.

[0050] It should be noted that in the drawings or the text of the specification, the implementation manners that are not illustrated or described are all forms known to those of ordinary skill in the art in the technical field to which they belong, and no detailed description is given. In addition, the above definitions of each element and method are not limited to the various specific structures, shapes or manners mentioned in the embodiments.

[0051] It should also be noted that this document can provide demonstrations of parameters including specific values, but these parameters do not necessarily exactly equal the corresponding values, but can be approximated to the corresponding values within an acceptable error tolerance or design constraint. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are only references to the directions in the drawings and are not used to limit the protection scope of this application.

[0052] The above description shows and describes the preferred embodiments of the present utility model. As mentioned above, it should be understood that the present utility model is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. An evaporative industrial cold air cooling system, characterized in that, It includes a chiller (1), a heat-insulated water tank (2) for supplying water to the chiller (1), and an evaporative air cooler (3); The evaporative air cooler (3) includes a water curtain (31) and a fan (32) arranged at the bottom of the evaporative air cooler (3). An air duct (4) is provided at the outlet of the fan (32) and is communicated into the workshop; The chiller (1) is communicated with the evaporative air cooler (3) through an upper water pipeline (5), and the evaporative air cooler (3) is communicated with the heat-insulated water tank (2) through a return water pipeline (6).

2. The evaporative industrial cold air cooling system according to claim 1, wherein The evaporative air cooler (3) is suspended and installed on the workshop wall (8) through a bracket (7).

3. The evaporative industrial cold air cooling system according to claim 1, wherein, The air duct (4) has a number of air outlets (9), and the air outlets (9) are located above the operation table (10).

4. The evaporative industrial cold air cooling system according to claim 3, wherein The air duct (4) is a PP heat-insulated and flame-retardant air duct.

5. The evaporative industrial cold air cooling system according to claim 1, wherein The chiller (1) includes a compressor (11), a condenser (12) communicated with the compressor (11), an evaporative coil (13) communicated with the condenser (12), and a cold water tank (14). The evaporative coil (13) is communicated with the compressor (11), and a water pump (15) is arranged in the cold water tank (14) and is communicated with the evaporative air cooler (3).

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