A low temperature air supply terminal device

Abstract

The present invention relates to the field of ventilation technology, and specifically to a low-temperature air supply terminal device, including: an air supply box; a detection device for detecting temperature and adjusting the air inlet temperature according to the detected temperature; an air outlet component, wherein the air outlet component includes a main connecting pipe, the outer wall of the main connecting pipe is symmetrically connected to a secondary exhaust pipe, and the main connecting pipe is fixedly installed with a first activated carbon filter cotton. The present invention continuously drips water to the upper end of the lower pressure plate, and the humidification water accumulated at the upper end of the lower pressure plate will drive the lower pressure plate to descend and be discharged into the fixed box and the water curtain, and the lowering of the lower pressure plate drives the linkage rod to descend and open together, and the descending linkage rod will drive the rotating rod to rotate together with the closing valve, and the wind mixed with the heated wind and having a certain temperature will enter the humidification box through the main connecting pipe, allowing the humidification water to evaporate on the surface of the water curtain, and finally bringing the evaporated water vapor into the room, so that the water vapor content in the air increases, and the indoor humidity increases.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation, and in particular to a low-temperature air supply terminal device. Background Art

[0002] Clean room high-efficiency air supply vents play a vital role in industrial production and clean rooms. Their main function is to ensure the circulation, purification and environmental stability of the air in the workshop. Their working principle is to introduce processed outdoor fresh air into the room, mix it with the indoor air properly, and then deliver the clean air to the working area. This air circulation method effectively improves the cleanliness of the clean room and ensures the high quality standards of the production environment.

[0003] Although existing clean room equipment is equipped with a filtering system to ensure that pollutants in the air will not enter the dust-free environment and affect its cleanliness, during long-term use, the filtering equipment will inevitably accumulate a certain amount of pollutants. The accumulation of these pollutants will not only lead to a decrease in the filtering effect, but may also cause blockage of the equipment, thereby affecting the normal operation and efficiency of the entire air purification system. For example, the patent publication number CN118009441B discloses a dust-free workshop air supply device based on a clean system, but it does not fully consider the cleaning and maintenance problems that the filtering equipment may encounter during long-term operation. In the absence of an effective cleaning mechanism, the filter will gradually be covered with pollutants such as dust and particulate matter, which not only reduces the ventilation capacity of the filter, but also may cause unstable air flow, thereby affecting the clean environment of the entire clean room; In addition, if low-temperature air enters the room through the ventilation system, it will undergo convection exchange with the existing air in the room and take away the moisture in the room. If the original air humidity in the room is relatively suitable or relatively high, the low-temperature air will "dilute" the humidity after entering, causing the relative humidity in the room to drop. Low-humidity air will cause the mucous membrane of the respiratory tract to dry out, which may make the nasal cavity and throat feel dry and uncomfortable, and even cause sore throat, cough and other problems. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a low-temperature air supply terminal device, which can effectively solve the problem that the existing equipment does not take into account the cleaning and maintenance that may be encountered by the filtering equipment during long-term operation.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a low-temperature air supply terminal device, comprising: Air supply box; A detection device, used to detect temperature and adjust the inlet air temperature according to the detected temperature; An air outlet component, the air outlet component comprises a main connecting pipe, the outer wall of the main connecting pipe is symmetrically connected to a secondary exhaust pipe, the main connecting pipe is fixedly installed with a first activated carbon filter cotton, one end of the secondary exhaust pipe away from the detection device passes through the air supply box and is connected to an air outlet box, a second activated carbon filter cotton is fixedly installed in the air outlet box, and two closing valves are rotatably installed in the main connecting pipe and at both ends of the first activated carbon filter cotton; A heating assembly for heating the air; A humidifying component, used for intermittently increasing the humidity of the incoming air, the humidifying component comprises a humidifying box, a fixing box is fixedly installed on the inner wall of the humidifying box and at a lower position, and a water curtain is fixedly installed in the fixing box; When the humidifying component is not humidifying, the closing valve rotates to close the main connecting pipe, and the first activated carbon filter cotton is back-blown and cleaned through the air outlet of the heating component.

[0006] Preferably, one side of the air supply box is connected to an air inlet pipe, the air inlet pipe passes through the air supply box and is fixedly connected to a connecting pipe, a ventilation detection box is fixedly installed on the inner top end of the air supply box, a rotating shaft is rotatably installed in the ventilation detection box, the rotating shaft passes through the ventilation detection box and the connecting pipe and extends into the connecting pipe, a first fan blade and a second fan blade are respectively fixedly installed at both ends of the rotating shaft, one side of the ventilation detection box is connected to a circulation pipe, the other side of the ventilation detection box is connected to an exhaust pipe, and a temperature sensor is fixedly installed in the ventilation detection box and at a position away from the circulation pipe.

[0007] Preferably, two brackets are fixedly installed on one side of the inner wall of the air supply box, a first spring is fixedly installed on the inner bottom wall of the air supply box and between the two brackets, a lifting plate is fixedly installed on the upper end of the first spring, the lifting plate is made of iron material, a first mounting block is fixedly installed between the two lifting plates and at an upper position, an electromagnet is fixedly installed on the lower end of the first mounting block, the electromagnet is electrically connected to the controller, a guide pipe is fixedly installed on one end of the lifting plate, an air inlet is provided on the side of the guide pipe close to the air inlet pipe, and the guide pipe is slidably connected to the main connecting pipe.

[0008] Preferably, one end of the connecting pipe is connected to the main connecting pipe, and a support rod is fixedly installed between the air outlet box and the air supply box, and two rotating rods are rotatably installed in the main connecting pipe and at both ends of the first activated carbon filter cotton, and the rotating rods are rotatably connected to the closing valve, and the outer walls of both ends of the two rotating rods are sleeved with mounting rings, and the mounting rings are fixedly connected to the outer wall of the main connecting pipe, and rotating brackets are sleeved on the outer walls of both ends of the rotating rods and at a position away from the mounting rings, a coil spring is fixedly installed between the rotating bracket and the mounting ring, and the two rotating rods are connected with a belt transmission, the outer wall of the main connecting pipe is connected to a dust exhaust pipe, and a pressure solenoid valve is fixedly installed in the dust exhaust pipe, and the dust exhaust pipe passes through the air supply box and extends to its outside.

[0009] Preferably, a heating box is fixedly installed on the upper end of the air supply box, and two heating elements are symmetrically installed in the heating box. One side of the heating box is connected to a first through pipe, and the lower end of the first through pipe is connected to the main connecting pipe. The lower end of the heating box is connected to a second through pipe, and the lower end of the second through pipe is connected to the main connecting pipe. The side of the heating box away from the first through pipe is connected to an air intake pipe, and the air intake pipe is air-tightly slidably connected to the guide pipe.

[0010] Preferably, one end of the main connecting pipe is connected to a humidification box, one end of the humidification box is connected to a humidification pipe, a water tank is fixedly installed on the upper end of the air supply box, the lower end of the water tank is connected to a water pipe, the water pipe passes through the air supply box and is connected to the humidification box, and a drip valve is embedded in the water pipe.

[0011] Preferably, two second mounting blocks are symmetrically installed on the inner wall of the humidification box and above the fixed box, second springs are fixedly installed on the upper ends of the two second mounting blocks, a lower pressure plate is fixedly installed on the upper end of the second spring, two baffles are fixedly installed on the inner wall of the humidification box and on both sides of the lower pressure plate, the two baffles are airtightly slidably connected to the lower pressure plate, and water outlet grooves are opened at the lower ends of the two baffles.

[0012] Preferably, a telescopic top block is slidably installed in the two baffles and at a lower position, and a third spring is fixedly installed between the telescopic top block and the baffles.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: First, by continuously dripping water to the upper end of the lower pressure plate, the humidification water accumulated at the upper end of the lower pressure plate will drive the lower pressure plate to descend and be discharged into the fixed box and the water curtain, and the lowering of the lower pressure plate will drive the linkage rod to descend and open together. The descending linkage rod will drive the rotating rod and the closing valve to rotate together, and the wind mixed with the heated wind and with a certain temperature will enter the humidification box through the main connecting pipe, allowing the humidification water to evaporate on the surface of the water curtain, and finally bring the evaporated water vapor into the room, thereby increasing the water vapor content in the air and increasing the indoor humidity.

[0014] Second, through the setting of the closing valve, during the intermittent humidification process, the closing valve will close the main connecting pipe, allowing part of the cold air to back-blow the first activated carbon filter cotton, thereby avoiding internal blockage of the first activated carbon filter cotton during long-term filtration and affecting the air outlet effect.

[0015] Third, when supplying air, the setting of the second fan blade and the first fan blade can allow the indoor air to circulate in the ventilation detection box, and the indoor temperature is detected by the set temperature sensor, and the cold air supplied by the diversion is adjusted according to the indoor temperature, so that part of the cold air is heated, and the overall air volume and temperature supplied to the room are adjusted according to the indoor temperature to improve comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the detection device of the present invention; Figure 4 It is a schematic diagram of the structure of the heating component of the present invention; Figure 5 It is a schematic diagram of the structure of the air outlet assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the closing valve of the present invention; Figure 7 It is a schematic diagram of the structure of the humidification component of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the humidifying tube of the present invention; Fig. 9 It is a schematic diagram of the decomposed structure of the magnetic telescopic top of the present invention.

[0018] Figure numerals: 1, air supply box; 2, detection device; 201, air inlet pipe; 202, connecting pipe; 203, ventilation detection box; 204, circulation pipe; 205, exhaust pipe; 206, rotating shaft; 207, first fan blade; 208, second fan blade; 209, temperature sensor; 213, bracket; 214, first spring; 215, lifting plate; 216, first mounting block; 217, electromagnet; 218, guide pipe; 3, air outlet assembly; 301, main connecting pipe; 302, first activated carbon filter cotton; 303, auxiliary exhaust pipe; 304, air outlet box; 305, second activated carbon filter cotton; 306, support rod; 307, dust exhaust pipe; 308, rotating rod; 309, closing valve; 310, mounting ring; 311, rotating bracket; 312, coil spring; 4, heating assembly; 401, air inlet pipe; 402, heating box; 403, heating element; 404, first through pipe; 405, second through pipe; 5, humidification assembly; 501, water tank; 502, water pipe; 503, drip valve; 504, humidification box; 505, water outlet pipe; 506, humidification pipe; 507, inner groove; 508, water inlet hole; 509, fixing box; 510, water curtain; 511, second mounting block; 512, second spring; 513, lower pressure plate; 514, linkage rod; 515, baffle; 516, telescopic top block; 517, third spring. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Example: Refer to Figures 1 to 9 , a low-temperature air supply terminal device, comprising: Air supply box 1; The detection device 2 is used to detect the temperature and adjust the inlet air temperature according to the detected temperature; The air outlet component 3 includes a main connecting pipe 301, the outer wall of the main connecting pipe 301 is symmetrically connected to the auxiliary exhaust pipe 303, the main connecting pipe 301 is fixedly installed with a first activated carbon filter cotton 302, the end of the auxiliary exhaust pipe 303 away from the detection device 2 passes through the air supply box 1 and is connected to the air outlet box 304, the air outlet box 304 is fixedly installed with a second activated carbon filter cotton 305, and two closing valves 309 are rotatably installed in the main connecting pipe 301 and at both ends of the first activated carbon filter cotton 302. The first activated carbon filter cotton 302 combines the powerful adsorption capacity of activated carbon and the particle filtering function of the filter cotton, which can prevent harmful gases such as dust from entering the clean room. The second activated carbon filter cotton 305 is arranged indoors, which can be convenient for personnel to disassemble and clean; A heating component 4, used for heating air; The humidifying component 5 is used to intermittently increase the humidity of the incoming air. The humidifying component 5 includes a humidifying box 504. A fixing box 509 is fixedly installed on the inner wall of the humidifying box 504 and at a lower position. A water curtain 510 is fixedly installed in the fixing box 509. The water curtain 510 is made of a highly water-absorbent material (such as honeycomb paper, wet curtain paper, polymer, etc.), which can evenly distribute water and increase the surface area of ​​contact between water and air; When the humidifying component 5 is not humidifying, the closing valve 309 rotates to close the main connecting pipe 301 , and the first activated carbon filter cotton 302 is back-blown and cleaned through the air outlet of the heating component 4 .

[0022] Reference Figure 3 One side of the air supply box 1 is connected to an air inlet pipe 201, the air inlet pipe 201 passes through the air supply box 1 and is fixedly connected to a connecting pipe 202, a ventilation detection box 203 is fixedly installed on the inner top of the air supply box 1, a rotating shaft 206 is rotatably installed in the ventilation detection box 203, the rotating shaft 206 passes through the ventilation detection box 203 and the connecting pipe 202 and extends into the connecting pipe 202, a first fan blade 207 and a second fan blade 208 are fixedly installed at both ends of the rotating shaft 206, one side of the ventilation detection box 203 is connected to a flow pipe 204, the other side of the ventilation detection box 203 is connected to an exhaust pipe 205, and a temperature sensor 209 is fixedly installed in the ventilation detection box 203 and at a position away from the flow pipe 204.

[0023] Reference Figure 3Two brackets 213 are fixedly installed on one side of the inner wall of the air supply box 1, and a first spring 214 is fixedly installed on the inner bottom wall of the air supply box 1 and between the two brackets 213. A lifting plate 215 is fixedly installed on the upper end of the first spring 214. The lifting plate 215 is made of iron material. A first mounting block 216 is fixedly installed between the two lifting plates 215 and at an upper position. An electromagnet 217 is fixedly installed on the lower end of the first mounting block 216. The electromagnet 217 is electrically connected to the controller. One end of the lifting plate 215 A guide tube 218 is fixedly installed at the end, and an air inlet is opened on the side of the guide tube 218 close to the air inlet pipe 201. The guide tube 218 is slidably connected to the main connecting pipe 301. The electromagnet 217 is a device that generates a magnetic field when current passes through it. When current flows through the coil of the electromagnet 217, the electromagnet 217 generates a strong magnetic field to attract the lifting plate 215 to move up and down. The lifting plate 215 is made of iron material, so that the electromagnet 217 can attract the lifting plate 215 to move up and down through magnetic force.

[0024] Reference Figure 5 to Figure 6 One end of the connecting pipe 202 is connected to the main connecting pipe 301, and a support rod 306 is fixedly installed between the air outlet box 304 and the air supply box 1. Two rotating rods 308 are rotatably installed in the main connecting pipe 301 and at both ends of the first activated carbon filter cotton 302. The rotating rods 308 are rotatably connected to the closing valve 309. The outer walls of the two ends of the two rotating rods 308 are sleeved with mounting collars 310. The mounting collars 310 are fixedly connected to the outer wall of the main connecting pipe 301. The outer walls of the two ends of the rotating rods 308 are away from the mounting collars. A rotating bracket 311 is sleeved at the position 310, a coil spring 312 is fixedly installed between the rotating bracket 311 and the mounting ring 310, the two rotating rods 308 are connected with a transmission, the outer wall of the main connecting pipe 301 is connected to the dust exhaust pipe 307, a pressure type solenoid valve is fixedly installed in the dust exhaust pipe 307, the dust exhaust pipe 307 passes through the air supply box 1 and extends to its outside, the pressure type solenoid valve is a kind of air pressure reaches a certain threshold, it will push the valve core, so that the valve opens or adjusts the position, thereby allowing gas to flow.

[0025] Reference Figure 4 A heating box 402 is fixedly installed on the upper end of the air supply box 1, and two heating elements 403 are symmetrically installed in the heating box 402. A first through pipe 404 is connected to one side of the heating box 402, and the lower end of the first through pipe 404 is connected to the main connecting pipe 301. A second through pipe 405 is connected to the lower end of the heating box 402, and the lower end of the second through pipe 405 is connected to the main connecting pipe 301. The side of the heating box 402 away from the first through pipe 404 is connected to an air intake pipe 401, and the air intake pipe 401 is airtightly slidably connected to the guide pipe 218. The heating element 403 can use a heating plate to heat the heating box 402 to heat the cold air entering the heating box 402.

[0026] Reference Figures 7 to 9 One end of the main connecting pipe 301 is connected to the humidifying box 504, one end of the humidifying box 504 is connected to the humidifying pipe 506, a water tank 501 is fixedly installed on the upper end of the air supply box 1, and the lower end of the water tank 501 is connected to a water pipe 502, the water pipe 502 runs through the air supply box 1 and is connected to the humidifying box 504, and a drip valve 503 is embedded in the water pipe 502. The drip valve 503 is a device for water to enter the valve body, and an adjusting device or a small hole is provided in the valve body to control the flow rate of the water.

[0027] Reference Figures 7 to 9 Two second mounting blocks 511 are symmetrically installed on the inner wall of the humidifying box 504 and above the fixed box 509, and a second spring 512 is fixedly installed on the upper ends of the two second mounting blocks 511, and a lower pressure plate 513 is fixedly installed on the upper ends of the second spring 512. Two baffles 515 are fixedly installed on the inner wall of the humidifying box 504 and on both sides of the lower pressure plate 513. The two baffles 515 are air-tightly slidably connected to the lower pressure plate 513, and a water outlet groove is opened at the lower ends of the two baffles 515. A telescopic top block 516 is slidably installed in the two baffles 515 and at a lower position, and a third spring 517 is fixedly installed between the telescopic top block 516 and the baffle 515.

[0028] The working principle of the present invention is as follows: The air inlet pipe 201 is connected to the pipe opening of the air supply device in the clean room, and the low-temperature air will enter the connecting pipe 202 through the air inlet pipe 201, driving the second fan blade 208, the rotating shaft 206 and the first fan blade 207 to rotate. The rotating first fan blade 207 drives the air in the clean room to flow from the circulation pipe 204 to the ventilation detection box 203 through the centrifugal force, and finally discharged from the exhaust pipe 205. The temperature of the air entering the ventilation detection box 203 will be detected by the temperature sensor 209, and the temperature sensor 209 will generate an electrical signal. The controller converts the signal into a suitable unit and calculates according to the preset conditions. According to the calculation result, the controller generates an output signal (such as voltage or current) to drive the electromagnet 217 to generate a magnetic force (the electrical signal generated by the temperature sensor 209 and the magnetic force generated by the electromagnet 217, the lifting amplitude of the lifting plate 215 The electromagnet 217 generating magnetic force will attract the lifting plate 215 to slide and rise between the brackets 213 and stretch the first spring 214. The rising bracket 213 will drive the guide tube 218 to slide and rise in the main connecting tube 301. At this time, most of the cold air entering from the air inlet pipe 201 will enter the guide tube 218 through the air inlet, while a small part of the cold air will continue to flow into the main connecting tube 301. It should be noted that in this process, if the heat of the indoor air is low, the lower the electrical signal detected by the temperature sensor 209, the higher the height of the guide tube 218 driven to rise in the main connecting tube 301 will change slightly (the guide tube 218 itself is mostly arranged in the main connecting tube 301, so the air inlet is mostly in the main connecting tube 301), so that the flow rate of the cold air entering from the air inlet pipe 201 entering the guide tube 218 from the air inlet becomes more. The cold air entering the guide pipe 218 will enter the heating box 402 through the air inlet pipe 401, be heated by the heating element 403, and finally enter the main connecting pipe 301 through the first through pipe 404 and the second through pipe 405. The wind entering the main connecting pipe 301 through the first through pipe 404 will back-blow the first activated carbon filter cotton 302 to clean the first activated carbon filter cotton 302. Due to the closure of the two closing valves 309, the back-blown wind will enter the dust exhaust pipe 307, and the pressure solenoid valve arranged in the dust exhaust pipe 307 will be pressurized. After the pressure is applied, it will automatically open to exhaust air outside, and the wind entering the main connecting pipe 301 through the second through-pipe 405 will be mixed with the cold air entering the main connecting pipe 301, thereby increasing the temperature of the cold air entering the room as a whole, so that the temperature of the supply air can be adjusted by the temperature of the room itself. When the indoor temperature is high, the supply air temperature can be adjusted to be lower. When the indoor temperature is low, the supply air temperature can be appropriately increased through adjustment to enhance the comfort of indoor personnel. Finally, the mixed air will enter the air outlet box 304 through the auxiliary exhaust pipe 303, be filtered by the second activated carbon filter cotton 305, and be discharged into the room. The set water tank 501 continuously drips humidification water into the water pipe 502 through the drip valve 503, and flows into the humidification box 504 through the water pipe 502 and gathers at the top of the lower pressure plate 513. As it continues to gather, the overall weight of the humidification water will drive the lower pressure plate 513 to descend and compress the second spring 512 (the elastic coefficient of the second spring 512 is relatively small), and the descending lower pressure plate 513 will contact the telescopic top block 516 and compress the third spring 517 and slide to the bottom of the lower pressure plate 513, and the gathered humidification water will flow into the fixed box 509 through the water outlet groove and disperse through the water curtain 510. In the process of the lower pressure plate 513 descending, it will drive the linkage rod 514 to descend together, and contact the rotating bracket 311 to drive the rotating bracket 311 to rotate, and the rotating rotating bracket 311 will drive the other rotating bracket 311 to rotate together through the transmission belt The rotating bracket 311 will wind up the coil spring 312 during the rotation process and drive the closing valve 309 to rotate, so that the cold air entering the main connecting pipe 301 can flow into the humidification box 504, and the mixed heated air makes the wind with a certain temperature pass through the water curtain 510. In the process, the moisture evaporates on the surface of the water curtain 510, and the cold wind brings the evaporated water vapor into the room, so that the water vapor content in the air increases, and the indoor humidity is increased, so as to avoid discomfort caused by low humidity or diseases caused by low humidity to indoor personnel. After the humidification water gathered on the top of the lower pressure plate 513 is completely discharged, the compressed second spring 512 will drive the lower pressure plate 513 to rise and break through the resistance of the third spring 517 to compress the telescopic top block 516 to slide in the baffle 515, and the coil spring 312 that is wound and stored energy will release the stored force to drive the rotating rod 308 and the closing valve 309 to rotate and re-close the main connecting pipe 301.

[0029] It should be noted that the cold air enters the humidification tube 506 after passing through the water curtain 510, and the inner groove 507 arranged in the humidification tube 506 can prevent the water vapor from gathering when being blown out from the water curtain 510, allowing the water vapor to flow back into the humidification box 504 through the water inlet hole 508. The humidification water accumulated at the bottom of the humidification box 504 can be discharged by opening the water outlet pipe 505.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low-temperature air supply terminal device, characterized in that: include: Air supply box (1); A detection device (2) is used to detect temperature and adjust the inlet air temperature according to the detected temperature; An air outlet component (3), the air outlet component (3) comprising a main connecting pipe (301), the outer wall of the main connecting pipe (301) being symmetrically connected to a secondary exhaust pipe (303), the main connecting pipe (301) being fixedly mounted with a first activated carbon filter cotton (302), one end of the secondary exhaust pipe (303) away from the detection device (2) passing through the air supply box (1) and being connected to an air outlet box (304), a second activated carbon filter cotton (305) being fixedly mounted in the air outlet box (304), and two closing valves (309) being rotatably mounted in the main connecting pipe (301) and at both ends of the first activated carbon filter cotton (302); A heating component (4) for heating air; A humidifying component (5) is used to intermittently increase the humidity of the incoming air, the humidifying component (5) comprising a humidifying box (504), a fixing box (509) being fixedly installed on the inner wall of the humidifying box (504) at a lower position, and a water curtain (510) being fixedly installed in the fixing box (509); When the humidifying component (5) is not humidifying, the closing valve (309) rotates to close the main connecting pipe (301), and the first activated carbon filter cotton (302) is back-blown and cleaned through the air outlet of the heating component (4).

2. A low-temperature air supply terminal device according to claim 1, characterized in that: One side of the air supply box (1) is connected to an air inlet pipe (201), the air inlet pipe (201) passes through the air supply box (1) and is fixedly connected to a connecting pipe (202), a ventilation detection box (203) is fixedly installed on the inner top end of the air supply box (1), a rotating shaft (206) is rotatably installed in the ventilation detection box (203), the rotating shaft (206) passes through the ventilation detection box (203) and the connecting pipe (202) and extends into the connecting pipe (202), a first fan blade (207) and a second fan blade (208) are fixedly installed at both ends of the rotating shaft (206), one side of the ventilation detection box (203) is connected to a circulation pipe (204), and the other side of the ventilation detection box (203) is connected to an exhaust pipe (205), and a temperature sensor (209) is fixedly installed in the ventilation detection box (203) and at a position away from the circulation pipe (204).

3. A low-temperature air supply terminal device according to claim 1, characterized in that: Two brackets (213) are fixedly mounted on one side of the inner wall of the air supply box (1); a first spring (214) is fixedly mounted on the inner bottom wall of the air supply box (1) and between the two brackets (213); a lifting plate (215) is fixedly mounted on the upper end of the first spring (214); the lifting plate (215) is made of an iron material; a first mounting block (216) is fixedly mounted between the two lifting plates (215) and at an upper position; an electromagnet (217) is fixedly mounted on the lower end of the first mounting block (216); the electromagnet (217) is electrically connected to a controller; a flow guide tube (218) is fixedly mounted on one end of the lifting plate (215); an air inlet is provided on a side of the flow guide tube (218) close to the air inlet tube (201); and the flow guide tube (218) is slidably connected to the main connecting tube (301).

4. A low-temperature air supply terminal device according to claim 2, characterized in that: One end of the connecting pipe (202) is connected to the main connecting pipe (301); a support rod (306) is fixedly installed between the air outlet box (304) and the air supply box (1); two rotating rods (308) are rotatably installed in the main connecting pipe (301) and at both ends of the first activated carbon filter cotton (302); the rotating rods (308) are rotatably connected to the closing valve (309); the outer walls of the two ends of the two rotating rods (308) are sleeved with mounting collars (310); the mounting collars (310) are rotatably connected to the outer wall of the main connecting pipe (301). The rotating rod (308) is fixedly connected, and a rotating bracket (311) is sleeved on the outer wall of both ends of the rotating rod (308) and at a position away from the mounting collar (310). A coil spring (312) is fixedly installed between the rotating bracket (311) and the mounting collar (310). The two rotating rods (308) are connected by a belt transmission. The outer wall of the main connecting pipe (301) is connected to a dust exhaust pipe (307). A pressure-type solenoid valve is fixedly installed in the dust exhaust pipe (307). The dust exhaust pipe (307) passes through the air supply box (1) and extends to the outside thereof.

5. A low-temperature air supply terminal device according to claim 1, characterized in that: A heating box (402) is fixedly mounted on the upper end of the air supply box (1), and two heating elements (403) are symmetrically mounted in the heating box (402); one side of the heating box (402) is connected to a first through pipe (404), and the lower end of the first through pipe (404) is connected to the main connecting pipe (301); the lower end of the heating box (402) is connected to a second through pipe (405), and the lower end of the second through pipe (405) is connected to the main connecting pipe (301); a side of the heating box (402) away from the first through pipe (404) is connected to an air intake pipe (401), and the air intake pipe (401) is airtightly slidably connected to the guide pipe (218).

6. A low-temperature air supply terminal device according to claim 1, characterized in that: One end of the main connecting pipe (301) is connected to a humidifying box (504), and one end of the humidifying box (504) is connected to a humidifying pipe (506). A water tank (501) is fixedly mounted on the upper end of the air supply box (1), and a water pipe (502) is connected to the lower end of the water tank (501). The water pipe (502) passes through the air supply box (1) and is connected to the humidifying box (504). A drip valve (503) is embedded in the water pipe (502).

7. A low-temperature air supply terminal device according to claim 1, characterized in that: Two second mounting blocks (511) are symmetrically mounted on the inner wall of the humidifying box (504) and above the fixing box (509); a second spring (512) is fixedly mounted on the upper ends of the two second mounting blocks (511); a lower pressure plate (513) is fixedly mounted on the upper ends of the second spring (512); two baffles (515) are fixedly mounted on the inner wall of the humidifying box (504) and on both sides of the lower pressure plate (513); the two baffles (515) are airtightly slidably connected to the lower pressure plate (513); and water outlet grooves are provided at the lower ends of the two baffles (515).

8. A low-temperature air supply terminal device according to claim 7, characterized in that: A telescopic top block (516) is slidably mounted inside the two baffles (515) and at a lower position, and a third spring (517) is fixedly mounted between the telescopic top block (516) and the baffles (515).

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