Refrigeration air conditioner with automatic dust removal and air purification functions

Abstract

The refrigeration air conditioner with the automatic dust removal and air purification functions comprises a refrigeration unit, the unit comprises a machine case, a compressor, a heat exchanger, an expansion valve, an evaporator and a draught fan, the compressor, the heat exchanger, the expansion valve, the evaporator and the draught fan form a refrigeration circulation loop, and the machine case is provided with an air inlet and an air outlet. The cooling tower comprises a tower box, a coil pipe, a spraying pipe and a cooling fan, the coil pipe is connected with the water supplementing tank and the heat exchanger to form a water cooling loop, the spraying pipe cools the coil pipe, and the cooling fan discharges heat. An automatic dust removal module is arranged at the air inlet and comprises filter cloth and a winding assembly, the driving mechanism drives the winding assembly to wind dirty filter cloth and release clean filter cloth, and continuous supply and automatic updating of the filter cloth are achieved. The air purification module in the case comprises a UV photocatalyst set and a negative ion generator, the UV photocatalyst set can decompose harmful gas, kill microorganisms and eliminate peculiar smell through a photocatalyst piece, an activated carbon base body, a UV lamp and an ozone lamp, and the negative ion generator releases negative ions to further purify air.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to a refrigeration air conditioner with automatic dust removal and air purification. Background Art

[0002] Traditional air-conditioning refrigeration systems mainly consist of a compressor, a heat exchanger, an expansion valve, an evaporator, a motor, etc. Its refrigeration cycle relies on air as a medium to exchange heat with the heat exchanger (i.e., the air-cooled mode). In this mode, the refrigeration efficiency of the system is significantly affected by the ambient temperature: when the outside air temperature is high, the heat dissipation capacity of the air decreases, resulting in a reduction in the heat exchange efficiency of the heat exchanger and a significant attenuation of the refrigeration performance. Moreover, traditional air conditioners lack an integrated air purification module and an automatic dust removal mechanism. On the one hand, in industrial scenarios such as chemical industry and food processing where there are odors and dust pollution such as volatile organic compounds and hydrogen sulfide, the open duct structure of traditional air conditioners cannot actively adsorb and decompose odor molecules and harmful pollutants. Instead, it is easy for pollutants to accumulate in the duct, forming a secondary aerosol pollution source, which is difficult to meet the strict requirements for air quality in industrial sites. On the other hand, traditional air conditioners generally use fixed filters for air filtration. As the use time increases, a large amount of particulate matter, oil stains, and microbial pollutants accumulate on the filter surface, not only reducing the air circulation efficiency and affecting the refrigeration and heating performance of the air conditioner, but also lacking an automatic cleaning and replacement mechanism, requiring frequent manual disassembly, cleaning, and maintenance or filter replacement. This not only significantly increases the labor cost and downtime loss, but also in special operating environments such as space-intensive factories and explosion-proof sites, there are physical installation adaptability obstacles and safety hazards in the complex filter maintenance operations, which are difficult to meet the requirements of modern industry for the efficient, intelligent, and safe operation of equipment, forming multi-dimensional technical application bottlenecks. Summary of the Invention

[0003] Object of the present invention: In order to overcome the defects of the prior art, the present invention provides a refrigeration air conditioner with automatic dust removal and air purification, which has good refrigeration effect, and realizes the continuous supply and automatic update of the filter cloth, as well as the decomposition of harmful gases, the killing of microorganisms, and the elimination of odors.

[0004] Technical solution of the present invention: A refrigeration air conditioner with automatic dust removal and air purification, including a refrigeration unit, the refrigeration unit includes a chassis and a compressor, a heat exchanger, an expansion valve, an evaporator, and a fan provided in the chassis. Among them, the compressor, the heat exchanger, the expansion valve, and the evaporator constitute a refrigeration cycle circuit. The chassis is provided with an air inlet and an air outlet, and further includes: A cooling tower, which includes a tower box, a coil provided in the tower box, and a spray pipe located above the coil. A cooling fan is provided on the top of the tower box. The coil is connected to a makeup water tank. The water outlet end of the makeup water tank is connected to the inlet of the heat exchanger, and the return water end of the coil is connected to the outlet of the heat exchanger, thereby forming a water-cooled circuit. The spray pipe is used to spray the coil below, and the cooling fan is used to discharge the heat in the tower box upward; An automatic dust removal module is arranged at the air inlet of the chassis. The automatic dust removal module includes a filter cloth and a winding assembly. The filter cloth covers the air inlet. The winding assembly is driven by a driving mechanism to wind up the dirty section of the filter cloth and release the clean section of the filter cloth. An air purification module is arranged inside the chassis. The air purification module includes a UV photocatalyst group and an anion generator. The UV photocatalyst group includes at least one photocatalyst sheet, an activated carbon matrix, a UV lamp, and an ozone lamp.

[0005] By adopting the above technical solutions, through the combination of the innovative automatic dust removal module and air purification module, the performance and user experience of the air conditioner are significantly improved. The automatic dust removal module can pre-dust the air entering the chassis in real time, effectively preventing dust and other impurities from entering the interior of the air conditioner chassis, thereby extending the service life of the air conditioner and reducing the maintenance cost at the same time. The winding assembly is driven by a driving mechanism to wind up the dirty section of the filter cloth and release the clean section of the filter cloth, thus realizing the continuous supply and automatic update of the filter cloth. This makes the replacement of the filter cloth more convenient, effectively avoiding the cumbersome process of manual frequent disassembly and cleaning maintenance, greatly reducing the labor cost and downtime loss, and improving the continuous operation efficiency of the industrial air conditioner.

[0006] The air purification module further purifies the air deeply. The catalyst + UV light oxygen realizes the decomposition of organic matter, the activated carbon adsorbs odor molecules, the ozone disinfects microorganisms, and the negative ions settle dust, covering typical pollutants in industrial scenarios. Activated carbon, with its porous structure and large specific surface area, has a strong adsorption capacity for harmful gases in the air such as formaldehyde, benzene, TVOC, etc., can effectively remove odors, and make the air fresher. The photocatalyst sheet, under the irradiation of UV light, has strong oxidizing properties, can decompose organic pollutants in the air into harmless substances such as carbon dioxide and water, and can also kill bacteria and viruses, playing a dual role of purification and disinfection. The UV lamp provides ultraviolet light with a specific wavelength to stimulate the photocatalyst sheet to produce a photocatalytic reaction. At the same time, ultraviolet light itself also has a certain bactericidal effect, which can damage the DNA structure of bacteria and viruses and inhibit their growth and reproduction. The ozone lamp generates ozone with strong oxidizing properties, which can quickly decompose harmful gases and odor substances in the air, and can also kill microorganisms such as bacteria, viruses, and molds, with a significant disinfection effect. There is a certain cooperative effect between the negative ion generator and the activated carbon, photocatalyst sheet, UV lamp, and ozone lamp in air purification: Cooperating with the activated carbon: The activated carbon adsorbs harmful gases, and the negative ions settle the particulate matter in the air. The two work together to purify the air from two aspects of adsorbing gaseous pollutants and reducing solid particulate matter. Cooperating with the photocatalyst sheet and the UV lamp: The UV lamp stimulates the photocatalyst sheet to carry out a photocatalytic reaction to decompose harmful substances, and the negative ions can also decompose some harmful gases. At the same time, the negative ions can improve the air ion balance and make the air fresher, jointly enhancing the purification effect with the photocatalyst sheet and the UV lamp. Cooperating with the ozone lamp: The ozone lamp generates ozone to disinfect and decompose harmful gases, and the negative ions also have a bactericidal effect and can reduce dust. The two can play a greater role in disinfection and air purification. And in the above UV photocatalyst group, through the UV photocatalytic regeneration technology, the service life of the activated carbon can be extended by - times, reducing the replacement frequency and lowering the maintenance cost.

[0007] Moreover, the air conditioner of the present invention also has an excellent refrigeration function, connecting the heat exchanger with the cooling tower to realize the water-cooled circuit circulation. The hot water in the heat exchanger flows into the return water end of the coil, the water in the cooling tower is pumped out by the spray pump and enters the spray pipe, and then sprays and wets the lower coil. After the water on the coil surface evaporates, it takes away heat. The cooling fan works to suck in normal temperature air from below the tower box and discharge the heat from above. The cooled water in the coil flows into the makeup water tank and enters the heat exchanger from the outlet end of the makeup water tank for heat exchange.

[0008] A further improvement of the present invention: One cooling tower can serve multiple refrigeration units; the cooling tower is provided with a main return water pipe connected to the coil pipe and a main outlet water pipe connected to the makeup water tank. The main outlet water pipe is connected to the inlets of the heat exchangers of multiple refrigeration units through multiple branch outlet water pipes respectively, and the main return water pipe is connected to the outlets of the heat exchangers of multiple refrigeration units through multiple branch return water pipes respectively, thereby forming multiple independent water cooling circuits. A water pump is provided on the main outlet water pipe, and the on-off of the multiple water cooling circuits is independently controlled by a control system.

[0009] With the above further improvement, not only the cooling efficiency is improved, but also the reasonable allocation of cooling resources is realized. The cooling tower is connected to multiple refrigeration units through the main outlet water pipe and the main return water pipe, forming multiple independent water cooling circuits. Each water cooling circuit is connected to the heat exchanger of a single refrigeration unit through the branch outlet water pipe and the branch return water pipe, ensuring that each refrigeration unit can obtain a stable supply of cooling water. At the same time, the water pump provided on the main outlet water pipe can adjust the flow rate of the cooling water according to needs to meet the working requirements of different refrigeration units. The on-off of the multiple water cooling circuits is independently controlled by the control system, which means that when a certain refrigeration unit does not need cooling, the water cooling circuit connected to the unit can be closed to avoid unnecessary energy waste. Such a design not only improves the operating efficiency of the entire air conditioning system, but also reduces energy consumption, bringing a more economical and environmentally friendly use experience to users.

[0010] A further improvement of the present invention: The winding assembly of the automatic dust removal module includes a driving reel and a driven reel rotatably installed on the first housing. The driving reel and the driven reel are separately arranged and are used for winding the two ends of the filter cloth respectively. The driving mechanism is used to drive the driving reel to rotate. The driving reel rotates to wind the dirty section of the filter cloth between the two reels and simultaneously drives the driven reel to rotate to release the clean section of the filter cloth.

[0011] With the above further improvement, the clogging state of the filter cloth is judged by monitoring the air volume. After the filter cloth is clogged to a certain extent, the driving mechanism is automatically triggered to start, realizing the replacement of the filter cloth and reducing the frequency of manual maintenance. When the filter cloth is wound to a preset length, the filter cloth monitor can accurately detect this change and trigger the driving mechanism to stop working, effectively avoiding damage or clogging problems caused by over-winding of the filter cloth.

[0012] A further improvement of the present invention: The automatic dust removal module further includes an air volume sensor and a filter cloth monitor, both of which are electrically connected to the driving mechanism. The air volume sensor is arranged inside the chassis and is used to monitor the air volume during the operation of the air conditioner. When the air volume exceeds a preset threshold, it triggers the driving mechanism to start; the filter cloth monitor is used to detect the winding length of the filter cloth. When it reaches the set length, it triggers the driving mechanism to stop. The driving mechanism is a stepping motor.

[0013] With the above further settings, the clogging state of the filter cloth is judged by monitoring the air volume. After the filter cloth is clogged to a certain extent, the driving mechanism is automatically triggered to start, realizing the replacement of the filter cloth and reducing the frequency of manual maintenance. When the filter cloth is wound to the preset length, the filter cloth monitor can accurately detect this change and trigger the driving mechanism to stop working, effectively avoiding the damage or clogging problem caused by over-winding of the filter cloth.

[0014] A further setting of the present invention: the air volume sensor can simultaneously monitor the air volume of the air inlet and the air outlet. When the air volume difference between the air inlet and the air outlet exceeds the preset threshold, the driving mechanism is triggered to start; the filter cloth monitor is a distance sensor, a position sensor or a photoelectric sensor With the above further settings, this improvement not only improves the accuracy of air volume monitoring, but also further ensures the stable operation of the air conditioning system. When the air volume difference between the air inlet and the air outlet increases abnormally, it often means that the filter cloth is severely clogged. At this time, triggering the driving mechanism to start for filter cloth replacement in time can effectively prevent the air conditioning system from decreasing in efficiency due to filter cloth clogging, and even avoid malfunction shutdown caused by clogging, thus further improving the reliability and service life of the industrial air conditioner.

[0015] A further setting of the present invention: the UV photocatalyst group of the air purification module includes a first photocatalyst sheet and a second photocatalyst sheet respectively arranged on both sides of the activated carbon matrix. UV lamps are respectively arranged between the activated carbon matrix and the first photocatalyst sheet and the second photocatalyst sheet, and an ozone lamp is also arranged between the activated carbon matrix and the first photocatalyst sheet. The UV photocatalyst group is arranged behind the automatic dust removal module, and the negative ion generator is arranged at the air inlet of the fan.

[0016] With the above further settings, this design makes the air purification process more efficient and comprehensive. The ultraviolet rays emitted by the UV lamps can activate the photocatalyst materials on the surfaces of the first photocatalyst sheet and the second photocatalyst sheet, generating a strong oxidation and decomposition effect, effectively decomposing harmful gases and organic pollutants in the air. At the same time, the activated carbon matrix as an adsorption material can further adsorb and remove fine particles and odors in the air, enhancing the purification effect. And the ozone lamp can generate an appropriate amount of ozone. The strong oxidizing property of ozone can kill bacteria and viruses in the air, improving the hygienic quality of the air.

[0017] The UV photocatalyst group is arranged behind the automatic dust removal module, which can ensure that the air is purified immediately after dust removal, avoiding secondary pollution that may occur during the dust removal process. The negative ion generator is arranged at the air inlet of the fan, and further purifies the air by releasing negative ions, removing dust and bacteria in the air. At the same time, negative ions also help to improve the indoor air quality and enhance people's comfort and health level.

[0018] A further setting of the present invention: The UV photocatalyst is assembled inside the second housing, and is arranged corresponding to the second ventilation opening provided on the second housing. The second housing has an open structure, and the first photocatalyst sheet, the activated carbon matrix, and the second photocatalyst sheet are all inserted into the second housing from the open portion, and respectively form an insertion and mating installation structure with the second housing; A fixing bracket is provided inside the second housing, and the UV lamp and the ozone lamp are detachably installed on the fixing bracket, and the second housing is installed inside the chassis.

[0019] With the above further setting, this design enables the photocatalyst sheet and the activated carbon matrix to be easily replaced or cleaned, thereby extending the service life of the air purification module and maintaining its purification effect. The user only needs to perform a simple operation to take out the aged photocatalyst sheet or the saturated activated carbon matrix, and install new components, without overall disassembly, greatly improving the convenience and efficiency of maintenance. The insertion and mating installation structure facilitates the quick disassembly and assembly of the photocatalyst sheet and the activated carbon matrix, and the open design facilitates the insertion and removal of each component.

[0020] A further setting of the present invention: The fixing bracket is provided with a clip, and the clip is composed of a pair of clamping arms to form a clamping hole. The pair of clamping arms can elastically deform to clamp or loosen the lamp, and the ends of the pair of clamping arms are bent away from each other, so as to form a V-shaped opening at one end of the clamping hole.

[0021] With the above further setting, the design of the fixing bracket ensures the stable installation of the UV lamp and the ozone lamp. And the pair of clamping arms of the clip can clamp the lamp tube through elastic deformation to prevent loosening or falling off; at the same time, the design of the V-shaped opening makes the installation and disassembly of the lamp tube simpler and faster, improving the operation efficiency.

[0022] A further setting of the present invention: The second housing includes a base plate and side frames located at opposite ends of the base plate. Both ends of the activated carbon matrix respectively form an insertion and mating installation structure with the two side frames; Baffles are respectively provided on both sides of the side frames. Two groups of fixing brackets are provided inside the second housing. A first insertion and mating space is formed between a group of fixing brackets and the adjacent baffle, and the first photocatalyst sheet is inserted and mated and installed in the first insertion and mating space; Another group of fixing brackets and the adjacent baffle form a second insertion and mating space, and the second photocatalyst sheet is inserted and mated and installed in the second insertion and mating space; The lamp is installed on the side of the fixing bracket facing the activated carbon matrix.

[0023] With the above further settings, the design of the two side frames provides stable insertion and installation support for the activated carbon matrix; and the photocatalyst sheet is limited and fixed by the cooperation of the baffle and the fixed bracket on the same side, so that the photocatalyst sheet can be stably installed in the second housing, avoiding shaking or displacement during operation, thereby ensuring the purification effect. At the same time, the lamp is installed on the side of the fixed bracket facing the activated carbon matrix, which is convenient for providing light for the photocatalyst sheet so that it can fully play the catalytic decomposition role.

[0024] A further setting of the present invention: the air inlet is provided at the front side of the chassis, the air outlet is provided at the rear side, the automatic dust removal module, the UV photocatalyst group, the evaporator and the fan are arranged in sequence along the front-rear direction of the chassis, and the first photocatalyst sheet, the activated carbon matrix and the second photocatalyst sheet of the UV photocatalyst group are also arranged in sequence along the front-rear direction.

[0025] With the above further settings, such a layout design not only makes the entire air purification process smoother, but also makes the space utilization between components more reasonable. The automatic dust removal module is located at the front end, which can effectively intercept and remove the dust and impurities entering the chassis and maintain the preliminary effect of air purification. The UV photocatalyst group follows closely. Its first photocatalyst sheet, activated carbon matrix and second photocatalyst sheet are arranged in sequence, which can make full use of light for catalytic decomposition and effectively remove harmful substances in the air. The activated carbon matrix can not only adsorb odors and harmful gases, but also further purify the air. Subsequently, it is purified by the negative ion generator and finally blown out by the fan to realize the refrigeration and air purification functions of the air conditioner. The whole design is compact in structure and comprehensive in function, providing a more comfortable and healthy indoor environment for users. Description of the Drawings

[0026] Figure 1 Structural diagram of the cooling tower for a specific embodiment of the present invention; Figure 2 Structural diagram of the refrigeration unit for a specific embodiment of the present invention; Figure 3 One of the internal structural diagrams of the refrigeration unit for a specific embodiment of the present invention; Figure 4 Another internal structural diagram of the refrigeration unit for a specific embodiment of the present invention; Figure 5 Structural diagram of the automatic dust removal module in a specific embodiment of the present invention; Figure 6 Structural diagram of the filter cloth in a specific embodiment of the present invention; Figure 7 Structural diagram of the UV photocatalyst group in a specific embodiment of the present invention; Figure 8 Internal structural diagram of the UV photocatalyst group in a specific embodiment of the present invention; Figure 9This is the structural diagram of the clip in a specific embodiment of the present invention. Detailed implementation manner

[0027] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Such as Figures 1-9As shown in the figure, a refrigeration air conditioner with automatic dust removal and air purification according to the present invention includes a refrigeration unit 1, and the refrigeration unit includes a chassis 11 and a compressor 12, a heat exchanger 13, an expansion valve 14, an evaporator 15 and a fan 16 disposed inside the chassis. Among them, the compressor 12, the heat exchanger 13, the expansion valve 14 and the evaporator 15 form a refrigeration cycle circuit. An air inlet 111 and an air outlet 112 are provided on the chassis 11. It further includes: a cooling tower 2, which includes a tower box 21, a coil pipe 22 disposed inside the tower box, and a spray pipe 23 located above the coil pipe. A cooling fan 24 is provided on the top of the tower box 21. There are a plurality of spray holes on the spray pipe 23. The coil pipe 22 is in an S shape or a spiral structure. The coil pipe 22 is connected to a makeup water tank 25, and water is stored in the makeup water tank. The water outlet end of the makeup water tank 25 is connected to the inlet of the heat exchanger 13, and the return water end of the coil pipe 22 is connected to the outlet of the heat exchanger 13, thereby forming a water cooling circuit. The spray pipe 23 is used to spray the coil pipe 22 below, and the cooling fan 24 is used to discharge the heat inside the tower box upward. A water storage tank is further provided inside the tower box below the coil pipe. The water storage tank is connected to the spray pipe 23 through a spray pump 29. The water on the surface of the coil pipe falls into the water storage tank below, and then flows into the spray pipe through the spray pump to form a cycle. The makeup water tank is connected to the inlet of the evaporator through a water pump 28. One cooling tower 2 can serve multiple refrigeration units 1. The cooling tower 2 is provided with a main return water pipe 26 connected to the coil pipe 22 and a main water outlet pipe 27 connected to the makeup water tank 25. The main water outlet pipe 27 is connected to the inlets of the heat exchangers 13 of multiple refrigeration units 1 through a plurality of branch water outlet pipes respectively. The main return water pipe 26 is connected to the outlets of the heat exchangers 13 of multiple refrigeration units 1 through a plurality of branch return water pipes respectively, thereby forming multiple independent water cooling circuits. A water pump 28 is provided on the main water outlet pipe 27. The on-off of the multiple water cooling circuits is independently controlled by a control system such as a solenoid valve. Among them, the evaporator adopts a multi-row straight copper pipe structure and is equipped with aluminum fins. The expansion valve includes a valve body, a temperature sensing bulb and a balance pipe. The temperature sensing bulb is sleeved on the evaporator outlet pipe, and the superheated steam temperature at the evaporator outlet is sensed in real time, and the saturated pressure signal at the corresponding temperature is transmitted to the valve body to adjust the refrigerant flow rate. The heat exchanger is a brazed plate heat exchanger, and its heat transfer area is formed by brazing a plurality of adjacent corrugated plates with a nickel-based filler metal. The fan is a centrifugal fan, which includes a casing, an impeller and a motor, and is used to realize air delivery.

[0029] The operating principle of air conditioner refrigeration is as follows: The compressor compresses the low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gas; then it flows into the heat exchanger through the four-way valve, and is connected to the cooling tower through the heat exchanger to realize the water-cooling circuit circulation, so that the gaseous refrigerant in the heat exchanger condenses into a liquid, and the heat is carried to the cooling tower by the water-cooling circuit circulation and discharged outdoors to achieve "heat dissipation" (the principle of the independent water-cooling circuit circulation is: the hot water in the heat exchanger flows into the coil from the return water end, the water in the cooling tower is pumped out by the spray pump and enters the spray pipe, then sprays and wets the lower coil, the water on the surface of the coil evaporates and takes away the heat, the cooling fan works to suck in the normal-temperature air from below the tower box and discharge the heat from above, the cooled water in the coil flows into the makeup water tank, and enters the heat exchanger from the water outlet end of the makeup water tank for heat exchange, the water on the surface of the coil falls into the lower reservoir and then flows into the spray pump to form a cold circuit circulation); then the liquid refrigerant is throttled and depressurized into a low-temperature and low-pressure misty liquid through the expansion valve; and then enters the evaporator, where the low-temperature refrigerant evaporates into a low-temperature and low-pressure gas, while cooling the air, and the cold air is blown out by the air conditioner fan to achieve refrigeration; the gaseous refrigerant enters the compressor again through the four-way valve, and the cycle is repeated to achieve cycle refrigeration.

[0030] An automatic dust removal module 3 is provided at the air inlet 111 of the chassis 11. The automatic dust removal module 3 includes a filter cloth 31 and a winding assembly 32. The filter cloth 31 covers the air inlet 111. The winding assembly 32 is driven by a driving mechanism 33 to wind up the dirty section of the filter cloth 31 and release the clean section of the filter cloth. The winding assembly 32 of the automatic dust removal module includes a driving drum 321 and a driven drum 322 rotatably installed on the first housing 34. The driving drum 321 and the driven drum 322 are separated and used for winding the two ends of the filter cloth 31 respectively. The driving mechanism 33 is used to drive the driving drum 321 to rotate. The driving drum 321 rotates to wind up the dirty section of the filter cloth between the two drums and at the same time drives the driven drum 322 to rotate to release the clean section of the filter cloth. A first accommodation chamber 341, a second accommodation chamber 342 and a first ventilation opening 343 located between the two accommodation chambers are provided on the first housing 34. The driving drum and the driven drum are respectively installed in the first accommodation chamber 341 and the second accommodation chamber 342. The filter cloth passes through the notch on the two accommodation chambers and covers the first ventilation opening 343. The first housing 34 is installed on the chassis and the filter cloth covers the air inlet 111 of the chassis. When the air inlet is provided on the front side of the chassis, the first housing can be integrally or fixedly installed on the outer side of the front end of the casing, and a notch is provided at the back of the accommodation chamber. The filter cloth passes through the notch and covers the rear side of the first ventilation opening and the front side of the air inlet. Tension rollers are provided on the housing, and one tension roller is provided beside each of the driving drum and the driven drum. The tension rollers abut against the filter cloth. If the tension rollers are installed on the spring telescopic rods, they can be driven to elastically abut against the filter cloth. The above driving mechanism can also be manually turned on or off. The automatic dust removal module 3 further includes an air volume sensor 35 and a filter cloth monitor 36, both of which are electrically connected to the driving mechanism 33. The air volume sensor 35 is provided inside the chassis and is used to monitor the air volume of the air conditioner during operation. When the air volume exceeds a preset threshold, the driving mechanism 33 is triggered to turn on. The air volume sensor 35 can simultaneously monitor the air volumes of the air inlet 111 and the air outlet 112. When the difference between the air volumes of the air inlet and the air outlet exceeds the preset threshold, the driving mechanism 33 will receive a startup signal and start working. During operation, after the air volume sensor measures the air volumes of the air inlet and the air outlet respectively, it transmits these two data to the control system. The control system calculates the difference between the air volumes of the air inlet and the air outlet and compares it with the preset threshold. Under normal conditions (the filter cloth is clean), the air volume of the air outlet is almost equal to that of the air inlet. When the filter cloth is blocked, the resistance of the air passing through the filter cloth will increase, resulting in a decrease in the air volume entering the air conditioning system. The air volume of the air conditioner outlet is relatively less affected because the air conditioner fan still operates at a normal speed and tries its best to send out the air. Therefore, the air volume of the air inlet decreases, the air volume of the air outlet is relatively stable, and the difference between the two will increase. When the difference exceeds the set threshold, there may be problems such as filter screen blockage. The preset threshold is determined according to the model, specifications of the air conditioner and the actual use scenario and purification requirements.Air conditioners of different models have different air volume ranges during normal operation, and in different usage environments, the requirements for air purification are also different. Of course, it can also be directly judged that the filter cloth is severely blocked by monitoring that the air volume at the air inlet of the air conditioner becomes smaller to a certain extent, such as the inlet air volume is less than 50% or 40% of the normal state. The filter cloth monitor 36 is used to detect the winding length of the filter cloth. When the set length is reached, the driving mechanism 33 is triggered to stop. The driving mechanism 33 is a stepping motor. The filter cloth monitor 36 is a distance sensor, a position sensor or a photoelectric sensor. The output shaft of the stepping motor is directly connected to the active reel or indirectly driven, such as belt drive, sprocket chain drive or gear drive, etc.; of course, it can also be driven by other mechanisms to rotate the active reel. The single rotation angle of the active reel can be controlled by the stepping motor. The distance sensor is installed on the housing and can be arranged close to the filter cloth. The distance sensor is also called a displacement sensor, which can directly measure the linear displacement distance of the filter cloth to obtain the winding length of the filter cloth; or measure the rotational displacement of the active reel and convert the rotational displacement into a linear displacement to obtain the winding length of the filter cloth. For the photoelectric sensor, equally spaced marks can be set on the filter cloth, and the photoelectric sensor calculates the moving distance of the filter cloth by detecting the passing times of the marks, and then obtains the winding length. After the filter cloth monitor detects that the winding length of the filter cloth reaches the set length, that is, after the filter cloth is released, the driving mechanism stops; it can also detect the single winding length of the filter cloth. When the driving mechanism is started to replace the clean section of the filter cloth, after the filter cloth monitor detects that the winding length of the filter cloth meets the single replacement requirement, the driving mechanism will receive a stop signal and stop working. The filter cloth monitor can prompt the operator to replace the filter cloth manually in various ways after detecting that the filter cloth is released. Such as buzzer, indicator light, display screen, etc. The filter cloth monitor transmits the detected signal to the control system. After receiving the signal, the control system gives a prompt in the form of sound, light or text to inform the operator to replace the filter cloth.

[0031] Working principle of the automatic dust removal module: When the air conditioner is running, the air volume sensor continuously monitors the air volume at the air inlet and the air outlet. If the difference between the air volume of the inlet air and the outlet air exceeds the preset threshold, it indicates that the filter cloth may affect the normal operation of the air conditioner due to blockage. At this time, the air volume sensor will trigger the driving mechanism to start. The driving mechanism drives the active reel to rotate, winds up the dirty section of the filter cloth, and at the same time drives the driven reel to rotate to release the clean section of the filter cloth, so as to realize the automatic update of the filter cloth. The filter cloth monitor monitors the winding length of the filter cloth in real time. When the filter cloth is wound to the preset length, the driving mechanism is triggered to stop working. At the same time, a prompt signal is sent after the filter cloth is released, so as to remind the operator to replace the new filter cloth in time.

[0032] An air purification module 4 is disposed inside the chassis 11. The air purification module includes a UV photocatalyst group 41 and an anion generator 42. The UV photocatalyst group 41 includes at least one photocatalyst sheet, an activated carbon matrix 412, a UV lamp 414, and an ozone lamp 415. The UV photocatalyst group 41 of the air purification module 4 includes a first photocatalyst sheet 411 and a second photocatalyst sheet 413 respectively disposed on both sides of the activated carbon matrix 412. There are two photocatalyst sheets, namely the first photocatalyst sheet 411 and the second photocatalyst sheet 413. UV lamps 414 are respectively disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411 and between the activated carbon matrix 412 and the second photocatalyst sheet 413, and an ozone lamp 415 is further disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411. The UV photocatalyst group 41 is disposed after the automatic dust removal module 3, and the anion generator 42 is disposed at the air inlet of the fan. The ozone lamp 415 and the multiple UV lamps 414 disposed between the activated carbon matrix 412 and the first photocatalyst sheet 411 are arranged at equal intervals up and down, and the multiple UV lamps 414 disposed between the activated carbon matrix 412 and the second photocatalyst sheet 413 are arranged at equal intervals up and down; wherein the UV lamp 414 and the ozone lamp 415 are in a long tubular structure. The UV photocatalyst group 41 is installed in a second housing 43 and corresponds to a second ventilation opening provided on the second housing 43. The second housing 43 has an open structure. The first photocatalyst sheet 411, the activated carbon matrix 412, and the second photocatalyst sheet 413 are all inserted into the second housing 43 from the open portion and respectively form an insertion and installation structure with the second housing 43; a fixing bracket 433 is provided inside the second housing 43, and the UV lamp 414 and the ozone lamp 415 are detachably installed on the fixing bracket 433. The second housing 43 is installed inside the chassis 11. The fixing bracket 433 is provided with a clip 434. The clip 434 is composed of a pair of clamping arms 4341 to form a clamping hole 4342. The pair of clamping arms 4341 can elastically deform to clamp or loosen the lamp, and the ends of the pair of clamping arms 4341 are bent away from each other, so as to form a V-shaped opening 43421 at one end of the clamping hole. Multiple lamp tubes are respectively clamped corresponding to the clips. Both ends of the lamp tube can be fixed by the fixing bracket respectively.The second housing 43 includes a substrate 431 and side frames 432 located at opposite ends of the substrate. Both ends of the activated carbon matrix 412 are respectively formed with an insertion and mating installation structure with the two side frames 432, and the two side frames are provided with card slots for the insertion of the activated carbon matrix 412; baffles 4321 are respectively arranged on both sides of the side frame 432. Two groups of fixing brackets 433 are arranged in the second housing 43. A first insertion and mating space is formed between one group of fixing brackets 433 and the adjacent baffle 4321, and the first photocatalyst sheet 411 is inserted and mated and installed in the first insertion and mating space; a second insertion and mating space is formed between the other group of fixing brackets 433 and the adjacent baffle 4321, and the second photocatalyst sheet 413 is inserted and mated and installed in the second insertion and mating space; the UV lamp 414 and the ozone lamp 415 are installed on the side of the fixing bracket 433 facing the activated carbon matrix 412. The outsides of the first photocatalyst sheet, the activated carbon matrix, and the second photocatalyst sheet are all wrapped with outer frames, and are inserted and mated and installed in the housing through the outer frames.

[0033] Specifically, an air inlet 111 is provided on the front side of the chassis 11, and an air outlet 112 is provided on the rear side. The automatic dust removal module 3, the UV photocatalyst group 41, the evaporator 15, and the fan 16 are arranged in sequence along the front-rear direction of the chassis 11. The first photocatalyst sheet 411, the activated carbon matrix 412, and the second photocatalyst sheet 413 of the UV photocatalyst group 41 are also arranged in sequence along the front-rear direction. The left and right ends of the substrate of the second housing of the air purification module are respectively fixed or integrally provided with side frames, and baffles are respectively arranged on the front and rear sides of the side frames. The first photocatalyst sheet is inserted and mated and installed between the front baffle and the front group of fixing brackets, and the second photocatalyst sheet is inserted and mated and installed between the rear baffle and the rear group of fixing brackets. The upper end of the second housing is an open structure, and the upper end of the chassis has an openable box cover; the active reel and the driven reel in the automatic dust removal module are distributed at the left and right ends, and the air conditioner is in a horizontal position at this time. The air conditioner can also be in a vertical structure, and the active reel and the driven reel in the automatic dust removal module are distributed at the upper and lower ends; the left and right ends of the substrate of the second housing of the air purification module are respectively fixed or integrally provided with side frames, and the left or right end of the chassis has an openable box cover.

[0034] Working principle of the air purification module: When the air conditioner is turned on, the air passes through the second ventilation opening provided on the second housing, and will sequentially pass through pre-purification by the first photocatalyst sheet → photo-oxygen activation catalysis by the front-side UV lamp and disinfection by the ozone lamp → activated carbon adsorption and decomposition → photo-oxygen activation decomposition by the rear-side UV lamp → purification treatment by the second photocatalyst sheet → negative ion sedimentation by the negative ion generator. Thereby realizing the functions of activating, adsorbing, and decomposing harmful gas molecules and purifying the air. When the air conditioner is turned off, the ozone lamp is turned off, and the UV lamp is turned on to continuously irradiate the activated carbon to catalyze the activated carbon matrix (titanium dioxide), and the harmful gas molecules adsorbed in the activated carbon are catalytically decomposed and released to restore the adsorption capacity of the activated carbon and extend the service life of the consumables.

[0035] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back...) are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "connected", "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A refrigeration air conditioner with automatic dust removal and air purification, comprising a refrigeration unit (1), the refrigeration unit including a chassis (11) and a compressor (12), a heat exchanger (13), an expansion valve (14), an evaporator (15) and a blower (16) arranged in the chassis, wherein the compressor (12), the heat exchanger (13), the expansion valve (14) and the evaporator (15) form a refrigeration cycle loop, and an air inlet (111) and an air outlet (112) are arranged on the chassis (11), characterized in that, It further includes: A cooling tower (2), which includes a tower box (21), a coil pipe (22) arranged inside the tower box, and a spray pipe (23) located above the coil pipe. A cooling fan (24) is provided on the top of the tower box (21). The coil pipe (22) is connected to a makeup water tank (25). The water outlet end of the makeup water tank (25) is connected to the inlet of the heat exchanger (13), and the water return end of the coil pipe (22) is connected to the outlet of the heat exchanger (13), thereby forming a water cooling loop. The spray pipe (23) is used to spray the coil pipe (22) below, and the cooling fan (24) is used to discharge the heat inside the tower box upward; An automatic dust removal module (3), which is arranged at the air inlet (111) of the chassis (11). The automatic dust removal module (3) includes a filter cloth (31) and a winding assembly (32). The filter cloth (31) covers the air inlet (111), and the winding assembly (32) is driven by a driving mechanism (33) to wind up the dirty section of the filter cloth (31) and release the clean section of the filter cloth. An air purification module (4), which is arranged inside the chassis (11). The air purification module includes a UV photocatalyst group (41) and an anion generator (42). The UV photocatalyst group (41) includes at least one photocatalyst sheet, an activated carbon matrix (412), a UV lamp (414), and an ozone lamp (415).

2. The air conditioner according to claim 1, characterized in that: One cooling tower (2) can serve multiple refrigeration units (1); the cooling tower (2) is provided with a main return water pipe (26) connected to the coil pipe (22) and a main water outlet pipe (27) connected to the makeup water tank (25). The main water outlet pipe (27) is connected to the inlets of the heat exchangers (13) of multiple refrigeration units (1) through multiple branch water outlet pipes respectively, and the main return water pipe (26) is connected to the outlets of the heat exchangers (13) of multiple refrigeration units (1) through multiple branch return water pipes respectively, thereby forming multiple independent water cooling loops. A water pump (28) is provided on the main water outlet pipe (27), and the on-off of the multiple water cooling loops is independently controlled by a control system.

3. The air conditioner according to claim 1, characterized in that: The winding assembly (32) of the automatic dust removal module includes a driving reel (321) and a driven reel (322) rotatably installed on a first housing (34). The driving reel (321) and the driven reel (322) are separated and used for winding the two ends of the filter cloth (31) respectively. The driving mechanism (33) is used to drive the driving reel (321) to rotate. The driving reel (321) rotates to wind up the dirty section of the filter cloth between the two reels and simultaneously drives the driven reel (322) to rotate to release the clean section of the filter cloth.

4. The air conditioner according to claim 3, characterized in that: The automatic dust removal module (3) further includes an air volume sensor (35) and a filter cloth monitor (36), both of which are electrically connected to the driving mechanism (33). The air volume sensor (35) is arranged inside the chassis and used to monitor the air volume during the operation of the air conditioner. When the air volume exceeds a preset threshold, it triggers the driving mechanism (33) to start; the filter cloth monitor (36) is used to detect the winding length of the filter cloth. When it reaches the set length, it triggers the driving mechanism (33) to stop. The driving mechanism (33) is a stepping motor.

5. The air conditioner according to claim 4, characterized in that: The air volume sensor (35) can monitor the air volume of the air inlet (111) and the air outlet (112) simultaneously. When the difference between the air volume of the incoming air and the outgoing air exceeds a preset threshold, the driving mechanism (33) is triggered to start; the filter cloth monitor (36) is a distance sensor, a position sensor or a photoelectric sensor.

6. The air conditioner according to claim 1, characterized in that: The UV photocatalyst group (41) of the air purification module (4) includes a first photocatalyst sheet (411) and a second photocatalyst sheet (413) respectively arranged on both sides of the activated carbon matrix (412). UV lamps (414) are respectively arranged between the activated carbon matrix (412) and the first photocatalyst sheet (411) and the second photocatalyst sheet (413), and an ozone lamp (415) is also arranged between the activated carbon matrix (412) and the first photocatalyst sheet (411). The UV photocatalyst group (41) is arranged behind the automatic dust removal module (3), and the negative ion generator (42) is arranged at the air inlet of the fan.

7. The air conditioner according to claim 6, characterized in that: The UV photocatalyst group (41) is installed in the second housing (43) and is arranged corresponding to the second ventilation opening opened on the second housing (43). The second housing (43) has an open structure. The first photocatalyst sheet (411), the activated carbon matrix (412) and the second photocatalyst sheet (413) are all inserted into the second housing (43) from the open end and respectively form an insertion and installation structure with the second housing (43); a fixed bracket (433) is arranged in the second housing (43), and the UV lamp (414) and the ozone lamp (415) are detachably installed on the fixed bracket (433), and the second housing (43) is installed in the chassis (11).

8. The air conditioner according to claim 7, wherein: The fixed bracket (433) is provided with a clip (434). The clip (434) is composed of a pair of clamping arms (4341) to form a clamping hole (4342). The pair of clamping arms (4341) can generate elastic deformation to clamp or loosen the lamp, and the ends of the pair of clamping arms (4341) are bent away from each other, so as to form a V-shaped opening (43421) at one end of the clamping hole.

9. The air conditioner according to claim 7, characterized in that: The second housing (43) includes a substrate (431) and side frames (432) located at opposite ends of the substrate. Both ends of the activated carbon matrix (412) respectively form an insertion and installation structure with the two side frames (432); baffles (4321) are respectively arranged on both sides of the side frames (432). Two groups of fixed brackets (433) are arranged in the second housing (43). A first insertion space is formed between a group of fixed brackets (433) and the adjacent baffle (4321), and the first photocatalyst sheet (411) is inserted and installed in the first insertion space; a second insertion space is formed between the other group of fixed brackets (433) and the adjacent baffle (4321), and the second photocatalyst sheet (413) is inserted and installed in the second insertion space; the UV lamp (414) and the ozone lamp (415) are installed on the side of the fixed bracket (433) facing the activated carbon matrix (412).

10. The air conditioner according to claim 6, characterized in that: The air inlet (111) is provided at the front side of the chassis (11), and the air outlet (112) is provided at the rear side. The automatic dust removal module (3), the UV photocatalyst group (41), the evaporator (15) and the fan (16) are arranged in sequence along the front-back direction of the chassis (11). The first photocatalyst sheet (411), the activated carbon matrix (412) and the second photocatalyst sheet (413) of the UV photocatalyst group (41) are also arranged in sequence along the front-back direction.

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