Coaxial double-pipe heat exchanger of water-cooled air conditioner and heat exchange method of coaxial double-pipe heat exchanger

Abstract

The invention relates to the technical field of air conditioner heat exchangers, and particularly discloses a coaxial double-pipe heat exchanger of a water-cooling air conditioner and a heat exchange method thereof.The coaxial double-pipe heat exchanger comprises a frame, an air conditioning unit is fixedly installed on the inner side of the frame, a heat exchange device is fixedly installed in the frame, and the heat exchange device is arranged on the outer side of the air conditioning unit; the inner side of the heat exchange device is connected with the outer surface of the air conditioning unit in an attached mode, the pipeline connector is aligned to the pipeline connector, the adjusting mechanism is adjusted, the sliding ring rotates, the torsional spring is compressed, meanwhile, the limiting frame is screwed out of the limiting pipe frame, the pipeline connector can be smoothly inserted, then the adjusting mechanism is loosened, and the torsional spring pushes the sliding ring to reset. And when the heat exchange pipe needs to be disassembled, the adjusting mechanism is operated again, the sliding ring rotates, and the limiting frame and the limiting pipe frame are separated, the pipeline joint can be conveniently disassembled, and the installation and maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning heat exchangers, and in particular to a coaxial sleeve heat exchanger for a water-cooled air conditioner and a heat exchange method thereof. Background Art

[0002] In the field of modern refrigeration and heating technologies, water-cooled air conditioners are widely used due to their high efficiency and energy-saving characteristics. As a key component of a water-cooled air conditioner, the coaxial sleeve heat exchanger undertakes the core task of heat exchange in the system. It enables efficient heat exchange by allowing fluids at different temperatures to flow through the internal pipe and the channels between the coaxial sleeves respectively. Due to its advantages of a compact structure and a small footprint, it can well adapt to installation environments with limited space; the high heat transfer efficiency ensures rapid energy transfer and effectively improves the performance of the air-conditioning system; and the characteristic of being not easily fouled extends the service life of the equipment and reduces the maintenance cost. It can transfer the heat in the water-cooled air-conditioning system to the cooling water, or conversely transfer the cold of the cooling water to the air or other media that need to be cooled, thereby achieving the refrigeration or heating function of the air conditioner.

[0003] For example, the coaxial sleeve heat exchanger of a marine water-cooled air conditioner disclosed in the Chinese patent with the publication number "CN221840225U" has a design that fully considers the special environment of limited space on ships. This heat exchanger organically combines the base, the mounting seat and the air-conditioning unit. The coaxial sleeve heat exchanger is fixed on the top of the mounting seat, and each part is connected through a connecting pipe. The water inlet and the water outlet are reasonably arranged. The overall structural design is relatively reasonable, effectively utilizing the external space, and the components are concentrated inside, which facilitates the maintenance operation on the side to a certain extent and meets the installation requirements of the narrow upper space of the cabin.

[0004] However, after in-depth analysis of this existing technology, it is found that it has significant limitations. The heat exchange tubes of this device are designed as an integral one-piece molding. Once a heat exchange tube is damaged, since the damaged part cannot be replaced separately, only the entire air-conditioning heat exchanger can be replaced, effectively increasing the maintenance cost and time cost. Moreover, the heat exchange tubes are designed in an arc shape and are wrapped around the outside of the air-conditioning unit. This structure increases the complexity and difficulty of the operation during the overhaul and maintenance of the air-conditioning unit and the heat exchanger, making the overhaul work extremely cumbersome and inconvenient. In the context of the modern industrial and living needs that pursue efficient and convenient maintenance, this traditional design obviously cannot meet the maintenance requirements in actual use and urgently needs to be improved through innovative design. Summary of the Invention

[0005] The purpose of the present invention is to provide a coaxial sleeve heat exchanger for a water-cooled air conditioner and a heat exchange method thereof, so as to solve the problem that the disassembly, installation, overhaul and maintenance are relatively inconvenient during the application of the existing technology as mentioned in the above background art.

[0006] To achieve the above object, the present invention provides a coaxial sleeve heat exchanger for a water-cooled air conditioner and a heat exchange method thereof, including a frame, an air conditioner unit is fixedly installed inside the frame, a heat exchange device is fixedly installed inside the frame, the heat exchange device is arranged outside the air conditioner unit, and the inner side of the heat exchange device is in fitting connection with the outer surface of the air conditioner unit;

[0007] The heat exchange device includes an adjustment mechanism, a mounting mechanism and a diversion mechanism. The diversion mechanism is fixedly installed on both sides inside the frame. The mounting mechanisms are linearly arranged at equal intervals and fixedly installed on the back of the diversion mechanism. The mounting mechanisms are linearly arranged at equal intervals and fixedly connected to the front of the diversion mechanism. A heat exchange tube is installed on the front of the diversion mechanism through the mounting mechanism. The inner side of the heat exchange tube is in fitting connection with the outer surface of the air conditioner unit. The heat exchange tube is connected to the inside of the diversion mechanism through the mounting mechanism.

[0008] Further, the diversion mechanism includes side plates. The side plates are fixedly installed on both sides inside the frame. Connecting channels are equally spaced and opened on the inner side of the side plates. Both ends of the connecting channels are respectively connected to two mounting mechanisms. The side shape of the connecting channels is U-shaped. A water inlet pipe is fixedly installed at the upper end of one of the two side plates, and a drain pipe is fixedly connected to the lower end of the other side plate. The water inlet pipe and the drain pipe are respectively connected to the connecting channels at the corresponding positions at the outer ends of the two side plates.

[0009] Further, the mounting mechanism includes a pipe interface and a pipe joint. The pipe interfaces are linearly arranged at equal intervals and fixedly installed on the front of the side plate. The rear side of the pipe interface is connected to the inside of the connecting channel. The front of the pipe joint is connected to the heat exchange tube. The rear side of the pipe joint is inserted into the inside of the pipe interface. The cross-sectional shape of the rear end of the pipe joint and the inner cross-sectional shape of the pipe interface are both set to be regular hexagons. A limiting component is fixedly installed on the outside of the pipe interface, and the limiting component is clamped with the pipe interface.

[0010] Further, the limiting component includes an outer sleeve and a limiting pipe frame. The outer sleeve is fixedly installed on the outside of the threaded interface. An annular groove is opened inside the outer sleeve. A torsion spring is fixedly installed inside the annular groove. The front end of the torsion spring is fixedly installed with a sliding ring. The sliding ring is rotatably connected to the front end inside the annular groove. The limiting pipe frames are annularly arranged at equal intervals and fixedly installed on the outside of the pipe joint. Limiting frames are fixedly connected to the outside of the sliding ring at equal intervals. The ends of the limiting frames are inserted into the inside of the limiting pipe frames.

[0011] Further, the outer side shape of the limiting pipe frame is set to be arc-shaped, and the outer side of the limiting frame is also arc-shaped. The arc-shaped parts of the limiting pipe frame and the limiting frame are concentric with the torsion spring.

[0012] Furthermore, the adjusting mechanism includes a substrate and a transmission component. The transmission component is arranged outside the slip ring and is fixedly connected to the back of the frame at equal intervals in a linear arrangement. A chute is provided inside the substrate. Both ends of the inside of the chute are slidably connected with sliders. A connecting plate is fixedly installed on the back of the slider. Both connecting plates are arranged in an L shape. The two connecting plates are arranged opposite to each other. Tooth grooves are provided at equal intervals in a linear arrangement inside the connecting plates. A gear is rotatably connected to the middle of the back of the substrate. The gear is meshed with the tooth grooves. An adjusting handle is fixedly connected to the back of the gear.

[0013] Furthermore, the transmission component includes a connecting arm and a toothed ring. The connecting arm is fixedly installed on the front of the slider. A rack is fixedly installed at the outer end of the connecting arm. The toothed ring is fixedly installed outside the slip ring. The rack is meshed with the toothed ring.

[0014] Furthermore, connecting flanges are fixedly installed at the outer ends of the water inlet pipe and the drain pipe. The side shape of the slider and the cross-sectional shape inside the chute are both set to a convex shape.

[0015] Furthermore, mounting brackets are fixedly installed on both sides of the frame. Mounting holes are provided at both outer ends of the mounting brackets. The mounting holes are set as countersunk holes.

[0016] A heat exchange usage method of a coaxial sleeve heat exchanger for a water-cooled air conditioner includes the following steps:

[0017] Step 1: Pipe connection. The operator aligns the pipe joint and inserts it into the pipe interface. Operate the adjusting mechanism to accurately drive the slip ring to rotate. The slip ring rotates to compress the torsion spring, driving the outer limiting frame to rotate and move outward synchronously, and pulling out from the limiting pipe rack. When the limiting frame is completely separated from the limiting pipe rack, the pipe joint can be completely inserted into the pipe interface.

[0018] Step 2: Clamping the heat exchange pipe. After the pipe joint is inserted, the operator releases the adjusting mechanism. The torsion spring pushes the slip ring to rotate and reset in the opposite direction outward due to the elastic restoring force. The slip ring drives the limiting frame to insert into the limiting pipe rack again. Through the mutual insertion and limitation of the two, the auxiliary clamping installation of the heat exchange pipe is realized.

[0019] Step 3: System pipe connection. Through the connecting flanges at the outer ends of the water inlet pipe and the drain pipe, the heat exchange device is quickly and firmly connected to the heat exchange pipeline of the heat exchange air conditioner unit pump.

[0020] Step 4: Heat exchange medium circulation. The air conditioner unit operates, and the heat exchange medium flows into the uppermost U-shaped connection channel from the water inlet pipe. Since the input end and output end of the connection channel are connected to each heat exchange pipe through the mounting block, under the combined action of gravity and system pressure, the heat exchange medium sequentially flows through the upper connection channel, the lower heat exchange pipe, the bottom heat exchange pipe, and then flows to the bottom drain pipe through the bottom connection channel and is discharged. Then, it is recirculated under the drive of the pump of the air conditioner unit;

[0021] Step 5: Disassembly of the heat exchange pipe. When disassembling and overhauling the heat exchange pipes of the radiator, the operator adjusts and twists the adjustment handrail to drive the first rotation of the gear. The gear drives the connecting plate to push the slider to slide within the established track. The slider pushes the rack on the outside of the connecting arm to move horizontally. The rack pushes the gear ring fixedly connected to the outside of the slip ring to rotate. The rotation of the slip ring pushes the limit frame to move outwards, and the limit frame is separated from the limit pipe frame. The operator pulls out the pipe joint from the inside of the pipe interface to complete the disassembly of the heat exchange pipe;

[0022] Step 6: Reinstallation of the heat exchange pipe. After completing the replacement or overhaul of the heat exchange pipe and reinstalling it, since the torsion spring compressed by the rotation of the slip ring is in the compressed state of elastic deformation, the operator releases the adjustment handrail. The torsion spring pushes the slip ring to rotate back to its original position by virtue of its elastic restoring force. The slip ring drives the limit frame to insert into the limit pipe frame again, realizing the stable clamping and fixing of the pipe interface and the pipe joint, and completing the installation of the heat exchange pipe.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] First, in the present invention, the heat exchange device of the present invention provides an innovative way for the connection of the water-cooled air-conditioning pipeline. When installing the heat exchange pipe, the operator aligns the pipe joint with the pipe interface, adjusts the adjustment mechanism to rotate the slip ring. The rotation of the slip ring compresses the torsion spring, and at the same time, the limit frame is rotated out of the limit pipe frame. At this time, the pipe joint can be smoothly inserted. Subsequently, the adjustment mechanism is released, and the torsion spring pushes the slip ring to return to its original position, and the limit frame is inserted into the limit pipe frame again, quickly completing the clamping installation of the heat exchange pipe. When it is necessary to disassemble the heat exchange pipe, the adjustment mechanism is operated again, the slip ring rotates, and the limit frame is separated from the limit pipe frame, and the pipe joint can be conveniently removed, greatly improving the installation and maintenance efficiency;

[0025] Second, in the present invention, the heat exchange device of the present invention operates efficiently. With the help of the connection flanges at the outer ends of the water inlet pipe and the drain pipe, it is quickly connected to the heat exchange pipeline of the pump of the air conditioner unit. After the system is started, the heat exchange medium flows into the top U-shaped connection channel from the water inlet pipe. The connection channel communicates with each heat exchange pipe through the mounting block. Under the action of gravity and system pressure, the medium sequentially flows through the upper connection channel and the heat exchange pipe, and then flows to the drain pipe through the bottom connection channel. Subsequently, under the drive of the pump, the medium circulates to achieve uniform and efficient heat dissipation, effectively ensuring the stable operation of the water-cooled air-conditioning system;

[0026] Thirdly, in the present invention, during the application of the present invention in the maintenance of the heat exchange tubes of the radiator, the present invention provides a convenient way. The operator twists the adjustment armrest to drive the gear to rotate. Since the gear meshes with the tooth groove, it drives the connecting plate to push the slider to slide. The slider pushes the rack, and the rack drives the toothed ring connected to the slip ring to rotate. The slip ring pushes the limit frame to move outwards, separating the limit frame from the limit pipe rack, so that the pipe joint can be withdrawn to complete the disassembly of the heat exchange tube. After maintenance, the torsion spring resets, pushing the slip ring to rotate, and the limit frame is inserted into the limit pipe rack again, quickly realizing the stable clamping of the pipe joint and the interface, and improving the convenience of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the structure of the heat exchange device in the present invention;

[0029] Figure 3 is a schematic diagram of the bottom view structure in the present invention;

[0030] Figure 4 is a schematic diagram of the front view structure of the disassembled state of the heat exchange device in the present invention;

[0031] Figure 5 is a schematic diagram of the rear view structure of the disassembled state of the heat exchange device in the present invention;

[0032] Figure 6 is a schematic diagram of the structure of the diversion mechanism in the present invention;

[0033] Figure 7 in the present invention Figure 4 is an enlarged schematic diagram of part A;

[0034] Figure 8 in the present invention Figure 5 is an enlarged schematic diagram of part B;

[0035] Figure 9 in the present invention Figure 5 is an enlarged schematic diagram of part C.

[0036] In the figure: 1. Frame; 2. Air conditioner unit; 3. Heat exchange device; 31. Adjusting mechanism; 311. Substrate; 312. Transmission assembly; 3121. Connecting arm; 3122. Tooth ring; 3123. Rack; 313. Sliding groove; 314. Slider; 315. Gear; 316. Connecting plate; 317. Tooth groove; 32. Installation mechanism; 321. Pipe interface; 322. Limiting assembly; 3221. Outer sleeve; 3222. Limiting pipe support; 3223. Annular groove; 3224. Torsion spring; 3225. Slip ring; 3226. Limiting frame; 323. Pipe joint; 33. Flow guiding mechanism; 331. Side plate; 332. Connecting channel; 333. Water inlet pipe; 334. Drain pipe; 335. Connecting flange; 34. Heat exchange pipe; 35. Adjusting handrail; 4. Mounting bracket; 5. Mounting hole. Detailed implementation manners

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0038] Please refer to Figures 1 - 9 , in the embodiment of the present invention, a coaxial sleeve heat exchanger of a water-cooled air conditioner and its heat exchange method include a frame 1. An air conditioner unit 2 is fixedly installed inside the frame 1. A heat exchange device 3 is fixedly installed inside the frame 1. The heat exchange device 3 is arranged outside the air conditioner unit 2, and the inner side of the heat exchange device 3 is in fitting connection with the outer surface of the air conditioner unit 2;

[0039] The heat exchange device 3 includes an adjustment mechanism 31, a mounting mechanism 32, and a diversion mechanism 33. The diversion mechanism 33 is fixedly installed on both sides inside the frame 1. The mounting mechanisms 32 are linearly arranged at equal intervals and fixedly installed on the back of the diversion mechanism 33. The mounting mechanisms 32 are linearly arranged at equal intervals and fixedly connected to the front of the diversion mechanism 33. The heat exchange tubes 34 are installed on the front of the diversion mechanism 33 through the mounting mechanisms 32. The inner sides of the heat exchange tubes 34 are in fitting connection with the outer surface of the air-conditioning unit 2. The heat exchange tubes 34 are internally connected to the diversion mechanism 33 through the mounting mechanisms 32. In the coaxial sleeve heat exchanger of this water-cooled air conditioner, the frame 1 plays a role in supporting and fixing each component. The air-conditioning unit 2 inside the frame 1 is the core of the entire system and is responsible for generating the air whose temperature needs to be adjusted. The heat exchange device 3 is installed around the outside of the air-conditioning unit 2 and undertakes the key task of heat exchange. Among them, the diversion mechanism 33 is fixed on both sides of the frame 1. On the one hand, it guides the flow direction of the heat exchange medium to ensure its orderly participation in the heat exchange process; on the other hand, it provides an installation foundation for the mounting mechanism 32. The mounting mechanisms 32 are linearly arranged at equal intervals on the front and back of the diversion mechanism 33 and are used to stably install the heat exchange tubes 34, so that the heat exchange tubes 34 can be closely matched with the air-conditioning unit 2. The heat exchange tubes 34 are internally connected to the diversion mechanism 33 through the mounting mechanisms 32. When the heat exchange medium flows through the diversion mechanism 33 and enters the heat exchange tubes 34, due to the inner side of the heat exchange tubes 34 being in contact with the outer surface of the air-conditioning unit 2, heat is exchanged between the heat exchange tubes 34 and the air-conditioning unit 2 under the action of the temperature difference, thereby realizing the heat dissipation or heating of the air-conditioning unit 2 and adjusting its internal temperature, ultimately ensuring the efficient and stable operation of the water-cooled air-conditioning system.

[0040] Please refer to Figures 1 - 6, the flow guiding mechanism 33 includes side plates 331. The side plates 331 are fixedly installed on both sides inside the frame 1. Connecting channels 332 are equidistantly opened on the inner sides of the side plates 331. The two ends of the connecting channels 332 are respectively communicated with the two installation mechanisms 32. The side shape of the connecting channels 332 is set in a U shape. The upper end of one of the two side plates 331 is fixedly installed with a water inlet pipe 333, and the lower end of the other side plate 331 among the two side plates 331 is fixedly connected with a drain pipe 334. The water inlet pipe 333 and the drain pipe 334 are respectively communicated with the connecting channels 332 at the corresponding positions on the outer ends of the two side plates 331. In the coaxial sleeve heat exchanger of this water-cooled air conditioner, the side plates 331 of the flow guiding mechanism 33 are fixed on both sides inside the frame 1. The connecting channels 332 equidistantly opened on the inner sides of the side plates 331 play a key role. Their sides are in a U shape. The two ends of the connecting channels 332 are respectively communicated with the two installation mechanisms 32 and then connected to structures such as the heat exchange tubes 34. When heat exchange work is carried out, the heat exchange medium flows in from the water inlet pipe 333. Since the water inlet pipe 333 is communicated with the connecting channel 332 corresponding to the outer end of the side plate 331, the heat exchange medium enters this connecting channel 332. Because the connecting channels 332 are in a U shape and communicate with each other, the heat exchange medium will flow through each connecting channel 332 in sequence. During the flowing process, it fully contacts the installation mechanism 32 and the connected heat exchange tubes 34 to carry out heat exchange. Finally, the heat exchange medium that has completed heat exchange flows out from the drain pipe 334. The drain pipe 334 is also communicated with the connecting channel 332 at the corresponding position on the side plate 331, so as to realize the circulating flow of the heat exchange medium in the flow guiding mechanism 33 and provide a stable medium transmission guarantee for the heat exchange process of the entire heat exchanger.

[0041] Please refer to Figure 7 and Figure 9, the installation mechanism 32 includes a pipe interface 321 and a pipe joint 323. The pipe interfaces 321 are linearly arranged at equal intervals and fixedly installed on the front side of the side plate 331. The rear side of the pipe interface 321 is communicated with the inside of the connecting channel 332. The front side of the pipe joint 323 is connected to the heat exchange tube 34. The rear side of the pipe joint 323 is inserted into the inside of the pipe interface 321. The cross-sectional shape of the rear end of the pipe joint 323 and the cross-sectional shape inside the pipe interface 321 are both set as regular hexagons. A limiting component 322 is fixedly installed on the outside of the pipe interface 321. The limiting component 322 is clamped with the pipe interface 321. The limiting component 322 includes an outer sleeve 3221 and a limiting pipe frame 3222. The outer sleeve 3221 is fixedly installed on the outside of the threaded interface. An annular groove 3223 is opened inside the outer sleeve 3221. A torsion spring 3224 is fixedly installed inside the annular groove 3223. The front end of the torsion spring 3224 is fixedly installed with a sliding ring 3225. The sliding ring 3225 is rotatably connected to the front end inside the annular groove 3223. The limiting pipe frames 3222 are linearly arranged at equal intervals and fixedly installed on the outside of the pipe joint 323. The outside of the sliding ring 3225 is fixedly connected with limiting frames 3226 at equal intervals. The end of the limiting frame 3226 is inserted into the inside of the limiting pipe frame 3222. The outer shape of the limiting pipe frame 3222 is set to be arc-shaped. The outside of the limiting frame 3226 is also set to be arc-shaped. The arc-shaped parts of the limiting pipe frame 3222 and the limiting frame 3226 are both concentric with the torsion spring 3224. In the installation mechanism 32 of this water-cooled air-conditioning coaxial sleeve heat exchanger, the pipe interfaces 321 are linearly arranged at equal intervals and fixedly installed on the front side of the side plate 331, and the rear part is communicated with the inside of the connecting channel 332, providing a channel for the flow of the heat exchange medium. The front side of the pipe joint 323 is connected to the heat exchange tube 34, and the rear side is used to be inserted into the pipe interface 321 to realize the docking of the heat exchange tube 34 and the pipe interface 321. When installing the heat exchange tube 34, by operating the sliding ring 3225 in the limiting component 322, the sliding ring 3225 rotates in the annular groove 3223, compressing the torsion spring 3224 fixedly installed in the annular groove 3223, and at the same time driving the outer limiting frame 3226 to rotate and move outwards, so that the limiting frame 3226 is withdrawn from the limiting pipe frame 3222 fixed on the outside of the pipe joint 323. At this time, the pipe joint 323 can be smoothly inserted into the pipe interface 321. After the insertion is completed, release the sliding ring 3225. The torsion spring 3224 pushes the sliding ring 3225 to rotate back to its original position by virtue of its elastic restoring force. The sliding ring 3225 drives the limiting frame 3226 to be inserted into the inside of the limiting pipe frame 3222 again. Since the outer sides of the limiting pipe frame 3222 and the limiting frame 3226 are both arc-shaped and concentric with the torsion spring 3224, the two are tightly clamped, realizing the stable limiting of the connection between the pipe joint 323 and the pipe interface 321, ensuring the firm installation of the heat exchange tube 34, ensuring the stable operation of the entire installation mechanism 32 during the operation of the heat exchanger, and enabling the heat exchange medium to flow orderly between the pipe interface 321, the pipe joint 323 and the heat exchange tube 34, and efficiently completing the heat exchange.

[0042] Please refer to Figures 1 - 6 and Figure 8 As shown in Figures 1 - 6 and Figure 8 , the adjusting mechanism 31 includes a substrate 311 and a transmission assembly 312. The transmission assembly 312 is arranged outside the slip ring 3225 and is fixedly connected to the back of the frame 1 at equal intervals in a linear arrangement. A chute 313 is provided inside the substrate 311. Sliders 314 are slidably connected to both ends inside the chute 313. A connecting plate 316 is fixedly installed on the back of the slider 314. Both connecting plates 316 are L-shaped and are arranged opposite to each other. Tooth grooves 317 are provided at equal intervals in a linear arrangement on the inner sides of the connecting plates 316. A gear 315 is rotatably connected to the middle of the back of the substrate 311. The gear 315 is meshed with the tooth grooves 317. An adjusting handle 35 is fixedly connected to the back of the gear 315. The transmission assembly 312 includes a connecting arm 3121 and a toothed ring 3122. The connecting arm 3121 is fixedly installed on the front of the slider 314. A rack 3123 is fixedly installed at the outer end of the connecting arm 3121. The toothed ring 3122 is fixedly installed outside the slip ring 3225. The rack 3123 is meshed with the toothed ring 3122. In the adjusting mechanism 31 of this water-cooled air-conditioning coaxial sleeve heat exchanger, the substrate 311 is fixedly connected to the back of the frame 1 in an equal-interval linear arrangement, providing an installation basis for the entire adjusting mechanism 31. When it is necessary to adjust the installation state of the heat exchange tube 34, the operator rotates the adjusting handle 35, driving the gear 315 fixedly connected thereto to rotate in the middle of the back of the substrate 311. Since the gear 315 meshes with the tooth grooves 317 linearly arranged at equal intervals on the inner sides of the connecting plates 316, when the gear 315 rotates, it will push the connecting plates 316 engaged therewith to slide in the chute 313 inside the substrate 311. The sliders 314 fixed to the back of the connecting plates 316 move synchronously. One end of the connecting arm 3121 is fixed to the front of the slider 314, and the rack 3123 at the other end meshes with the toothed ring 3122 fixed outside the slip ring 3225. When the slider 314 drives the connecting arm 3121 to move, the rack 3123 moves horizontally, thereby pushing the toothed ring 3122 to rotate. The slip ring 3225 fixedly connected to the toothed ring 3122 also rotates accordingly. During the rotation of the slip ring 3225, the limiting frame 3226 fixedly connected to its outside rotates correspondingly, realizing the separation or clamping with the limiting pipe rack 3222, thereby realizing the convenient adjustment of the installation of the heat exchange tube 34, facilitating the quick disassembly and assembly of the heat exchange tube 34 during the maintenance or replacement of components of the heat exchanger, and improving the convenience of equipment operation and maintenance efficiency.

[0043] Please refer to Figures 1 - 6, connection flanges 335 are fixedly installed at the outer ends of the water inlet pipe 333 and the drain pipe 334. The side shape of the slider 314 and the internal cross-sectional shape of the chute 313 are both set to a convex shape. Mounting brackets 4 are fixedly installed on both sides of the frame 1. Mounting holes 5 are provided at both outer ends of the mounting bracket 4. The mounting holes 5 are countersunk holes. In this coaxial sleeve heat exchanger system of the water-cooled air conditioner, the connection flanges 335 at the outer ends of the water inlet pipe 333 and the drain pipe 334 are used for firmly connecting with the pipes of the external heat exchange air conditioner unit 2 pump. Fasteners such as bolts are passed through the holes on the connection flange 335 for fastening to ensure the stable inflow and outflow of the heat exchange medium. The side of the slider 314 and the internal cross-section of the chute 313 are both designed in a convex shape. This special shape can effectively prevent the slider 314 from disengaging or shifting within the chute 313, ensuring that the slider 314 can slide stably along the chute 313, thereby ensuring the transmission stability among the components in the adjustment mechanism 31. The mounting brackets 4 fixedly installed on both sides of the frame 1 provide installation support for the entire heat exchanger. The countersunk holes provided at both outer ends facilitate the use of mounting parts such as bolts for fixing. The countersunk hole design allows the head of the mounting part to sink into the hole, ensuring the flatness of the installation surface, which is not only beautiful but also avoids potential safety hazards caused by the protrusion of the mounting part. At the same time, it improves the firmness of the installation, enabling the entire heat exchanger to remain stable during operation.

[0044] A heat exchange usage method for a coaxial sleeve heat exchanger of a water-cooled air conditioner includes the following steps:

[0045] Step 1: Pipe connection. The operator aligns the pipe joint 323 and inserts it into the pipe interface 321. The adjustment mechanism 31 is operated to precisely drive the sliding ring 3225 to rotate. The sliding ring 3225 rotates and compresses the torsion spring 3224, driving the outer limiting frame 3226 to rotate and move outward synchronously and withdraw from the limiting pipe frame 3222. When the limiting frame 3226 is completely separated from the limiting pipe frame 3222, the pipe joint 323 can be completely inserted into the pipe interface 321.

[0046] Step 2: Clamping the heat exchange tube 34. After the pipe joint 323 is inserted, the operator releases the adjustment mechanism 31. The torsion spring 3224 pushes the sliding ring 3225 to rotate and reset in the reverse direction toward the outside due to the elastic restoring force. The sliding ring 3225 drives the limiting frame 3226 to insert into the limiting pipe frame 3222 again. Through the mutual insertion and limitation of the two, the auxiliary clamping installation of the heat exchange tube 34 is realized.

[0047] Step 3: System pipe connection. Through the connection flanges 335 at the outer ends of the water inlet pipe 333 and the drain pipe 334, the heat exchange device 3 is quickly and firmly connected to the heat exchange pipe 34 of the heat exchange air conditioner unit 2 pump.

[0048] Step Four: Heat exchange medium circulation. The air conditioner unit 2 operates, and the heat exchange medium flows into the uppermost U-shaped connecting channel 332 from the water inlet pipe 333. Since the input end and the output end of the connecting channel 332 are connected to each heat exchange tube 34 through the mounting block, under the combined action of gravity and system pressure, the heat exchange medium sequentially flows through the upper connecting channel 332, the lower heat exchange tubes 34, and the bottom heat exchange tubes 34, and then flows to the bottom drain pipe 334 through the bottom connecting channel 332 for discharge. After that, it is recirculated under the drive of the pump of the air conditioner unit 2;

[0049] Step Five: Disassembly of the heat exchange tube 34. When disassembling and overhauling the radiator heat exchange tube 34, the operator adjusts and twists the adjusting handrail 35 to drive the first rotation of the gear 315. The gear 315 drives the connecting plate 316 to push the slider 314 to slide within the established track. The slider 314 pushes the outer rack 3123 of the connecting arm 3121 to move horizontally. The rack 3123 pushes the gear ring 3122 fixedly connected to the outer side of the slip ring 3225 to rotate. The rotation of the slip ring 3225 pushes the limit frame 3226 to move outwards. The limit frame 3226 is separated from the limit pipe frame 3222. The operator pulls out the pipe joint 323 from the inside of the pipe interface 321 to complete the disassembly of the heat exchange tube 34;

[0050] Step Six: Reinstallation of the heat exchange tube 34. After replacing or overhauling the heat exchange tube 34 and reinstalling it, the torsion spring 3224 compressed due to the rotation of the slip ring 3225 is in the compressed state of elastic deformation. The operator releases the adjusting handrail 35, and the torsion spring 3224 pushes the slip ring 3225 to rotate back to its original position by virtue of its elastic restoring force. The slip ring 3225 drives the limit frame 3226 to be inserted into the limit pipe frame 3222 again, realizing the stable clamping and fixing of the pipe interface 321 and the pipe joint 323, and completing the installation of the heat exchange tube 34.

[0051] The working principle of the present invention is as follows: By providing a heat exchange device 3, when the pipeline connection is carried out during the use of the device, the operator first aligns and inserts the pipeline joint 323 into the pipeline interface 321. During this process, the installer can precisely drive the slip ring 3225 to rotate by operating the adjustment mechanism 31. On the one hand, the rotation of the slip ring 3225 applies pressure to the torsion spring 3224, causing it to undergo elastic deformation and store energy; on the other hand, the rotation of the slip ring 3225 drives the synchronous rotation and outward movement of each limiting frame 3226 evenly distributed on its outer side. As the limiting frame 3226 rotates, it gradually withdraws from the inside of the limiting pipe frame 3222. When the limiting frame 3226 is completely separated from the limiting pipe frame 3222, the pipeline joint 323 can be completely inserted into the pipeline interface 321 without any hindrance. At this time, the operator releases the adjustment mechanism 31, and due to the elastic restoring force, the torsion spring 3224 pushes the slip ring 3225 to rotate reversely and reset outward. During the reset process of the slip ring 3225, it drives the limiting frame 3226 to be inserted into the limiting pipe frame 3222 again. Through the tight mutual insertion and limiting effect between the limiting frame 3226 and the limiting pipe frame 3222, the auxiliary clamping installation of the heat exchange pipe 34 is realized. This innovative design enables the device to extremely conveniently achieve the rapid installation of each heat exchange pipe 34;

[0052] When the heat exchange pipe 34 needs to be disassembled and maintained during subsequent use, the operation process is also simple. The operator adjusts the adjustment mechanism 31 again to push the slip ring 3225 to rotate outward. The rotation of the slip ring 3225 drives the synchronous outward movement of the limiting frame 3226, thereby prompting the rapid separation of the limiting frame 3226 from the limiting pipe frame 3222. At this time, the connection restriction between the pipeline interface 321 and the pipeline joint 323 is released, and the operator can easily separate the two, realizing the rapid disassembly of the heat exchange pipe 34 and effectively improving the equipment maintenance efficiency;

[0053] During the actual operation of the heat exchange device 3 of the present invention, through the connecting flange 335 at the outer ends of the water inlet pipe 333 and the drain pipe 334, it can be quickly and firmly connected to the heat exchange pipes 34 of the pump of the heat exchange air-conditioning unit 2. During the operation of the system, the heat exchange medium first flows into the internal connecting cavity 332 at the uppermost end from the water inlet pipe 333. It should be noted that the connecting cavity 332 adopts a unique U-shaped design, and the input end and the output end of each connecting cavity 332 are connected to each heat exchange pipe 34 through respective mounting blocks. This carefully designed structural layout enables the heat exchange medium, under the combined action of gravity and system pressure, to flow into the internal heat exchange pipes 34 at the lower end in sequence from the connecting cavity 332 at the upper end according to a predetermined path, then flow downward through the heat exchange pipes 34 to the heat exchange pipes 34 at the bottom, and then further flow downward through the connecting cavity 332 at the bottom, and finally uniformly flow to the drain pipe 334 at the bottom through each heat exchange pipe 34 and be discharged. After that, driven by the pump of the air-conditioning unit 2, the heat exchange medium re-enters the cycle, realizing uniform and efficient cyclic heat dissipation, which effectively guarantees the stable operation of the water-cooled air-conditioning system;

[0054] When disassembling, installing and overhauling the heat exchange tube 34 of the radiator, the present invention also provides a convenient operation method. The operator can drive the gear 315 to rotate by adjusting and turning the adjusting armrest 35. Since the gear 315 and the tooth groove 317 are connected by an accurate meshing connection method, as the gear 315 continues to turn, it can drive the two connecting plates 316 connected thereto to move synchronously, thereby pushing the slider 314 to slide within the established track. The sliding of the slider 314 can further push the rack 3123 on the outside of the connecting arm 3121 to move horizontally. The rack 3123 and the tooth ring 3122 are connected by meshing, and the tooth ring 3122 is firmly fixed on the outside of the slip ring 3225. Therefore, when the rack 3123 moves horizontally, it can effectively drive the tooth ring 3122 to rotate. The rotation of the tooth ring 3122 further drives the slip ring 3225 to rotate synchronously. During the rotation of the slip ring 3225, it pushes the limit frame 3226 to move outwards, prompting the limit frame 3226 to quickly separate from the limit pipe frame 3222. At this time, the operator can smoothly pull out the pipe joint 323 from the inside of the pipe interface 321 to complete the disassembly of the heat exchange tube 34. After replacing or overhauling the heat exchange tube 34 and reinstalling it, since the slip ring 3225 compresses the torsion spring 3224 during rotation, making the torsion spring 3224 in an elastically deformed compressed state. At this time, the operator releases the adjusting armrest 35, and the torsion spring 3224 pushes the slip ring 3225 to rotate back to its original position with a strong elastic restoring force. The rotation of the slip ring 3225 back to its original position drives the limit frame 3226 to be inserted into the limit pipe frame 3222 again, realizing the stable clamping and fixing of the pipe interface 321 and the pipe joint 323, ensuring the quick installation of the heat exchange tube 34. This innovative design not only realizes the quick installation and disassembly of the heat exchange tube 34, but also effectively improves the convenience of the device during the overall application process, providing a strong guarantee for the efficient operation and maintenance of the water-cooled air-conditioning system.

Claims

1. A coaxial tube heat exchanger for a water-cooled air conditioner, characterized in that: The invention comprises a frame (1), an air conditioning unit (2) is fixedly mounted on the inner side of the frame (1), a heat exchange device (3) is fixedly mounted inside the frame (1), the heat exchange device (3) is arranged on the outer side of the air conditioning unit (2), and the inner side of the heat exchange device (3) is in close contact with the outer surface of the air conditioning unit (2); The heat exchange device (3) comprises an adjustment mechanism (31), a mounting mechanism (32) and a flow guiding mechanism (33); the flow guiding mechanism (33) is fixedly mounted on both sides of the frame (1); the mounting mechanisms (32) are fixedly mounted on the back of the flow guiding mechanism (33) at equal intervals and arranged linearly; the mounting mechanisms (32) are fixedly connected to the front of the flow guiding mechanism (33) at equal intervals and arranged linearly; a heat exchange tube (34) is mounted on the front of the flow guiding mechanism (33) through the mounting mechanism (32); the inner side of the heat exchange tube (34) is fitted and connected to the outer surface of the air conditioning unit (2); and the heat exchange tube (34) is connected to the inside of the flow guiding mechanism (33) through the mounting mechanism (32).

2. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 1, characterized in that: The flow guide mechanism (33) comprises a side plate (331), the side plate (331) being fixedly mounted on both sides of the frame (1), the inner side of the side plate (331) being provided with connecting cavities (332) at equal intervals, the two ends of the connecting cavities (332) being respectively connected to the two mounting mechanisms (32), the side surface of the connecting cavities (332) being arranged in a U-shape, the upper end of one of the two side plates (331) being fixedly mounted with a water inlet pipe (333), the lower end of the other of the two side plates (331) being fixedly connected with a drain pipe (334), the water inlet pipe (333) and the drain pipe (334) being respectively connected to the connecting cavities (332) at positions corresponding to the outer ends of the two side plates (331).

3. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 2, characterized in that: The installation mechanism (32) comprises a pipe interface (321) and a pipe joint (323); the pipe interfaces (321) are fixedly installed on the front side of the side plate (331) at equal intervals and in a linear arrangement; the rear side of the pipe interface (321) is connected to the interior of the connecting cavity (332); the front side of the pipe joint (323) is connected to the heat exchange tube (34); the rear side of the pipe joint (323) is inserted into the interior of the pipe interface (321); the rear end cross-sectional shape of the pipe joint (323) and the internal cross-sectional shape of the pipe interface (321) are both set to regular hexagons; a limit assembly (322) is fixedly installed on the outer side of the pipe interface (321); the limit assembly (322) and the pipe interface (321) are snap-fitted.

4. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 3, characterized in that: The limiting assembly (322) comprises an outer sleeve (3221) and a limiting pipe rack (3222); the outer sleeve (3221) is fixedly mounted on the outer side of the threaded interface; an annular groove (3223) is provided inside the outer sleeve (3221); a torsion spring (3224) is fixedly mounted inside the annular groove (3223); a slip ring (3225) is fixedly mounted at the front end of the torsion spring (3224); the slip ring (3225) is rotatably connected to the front end of the annular groove (3223); the limiting pipe rack (3222) is arranged in a ring shape at equal intervals and fixedly mounted on the outer side of the pipe joint (323); the outer side of the slip ring (3225) is fixedly connected to the limiting rack (3226) at equal intervals; the end of the limiting rack (3226) is inserted into the interior of the limiting pipe rack (3222).

5. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 4, characterized in that: The outer side of the limiting tube rack (3222) is in the shape of a circular arc, and the outer side of the limiting frame (3226) is also in the shape of a circular arc. The arcs of the limiting tube rack (3222) and the limiting frame (3226) are both arranged concentrically with the torsion spring (3224).

6. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 5, characterized in that: The adjustment mechanism (31) comprises a base plate (311) and a transmission assembly (312). The transmission assembly (312) is arranged on the outside of the slip ring (3225). The base plate (311) is fixedly connected to the back of the frame (1) in a linear arrangement at equal intervals. A slide groove (313) is provided on the inside of the base plate (311). Both ends of the inside of the slide groove (313) are slidably connected to sliders (314). A connecting plate (316) is fixedly installed on the back of the slider (314). The two connecting plates (316) are arranged in an L shape. The two connecting plates (316) are arranged opposite to each other. Tooth grooves (317) are provided on the inside of the connecting plates (316) in a linear arrangement at equal intervals. A gear (315) is rotatably connected to the middle of the back of the base plate (311). The gear (315) and the tooth groove (317) are meshed and connected. The back of the gear (315) is fixedly connected to the adjusting armrest (35).

7. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 6, characterized in that: The transmission assembly (312) comprises a connecting arm (3121) and a gear ring (3122); the connecting arm (3121) is fixedly mounted on the front side of the slider (314); a rack (3123) is fixedly mounted on the outer end of the connecting arm (3121); the gear ring (3122) is fixedly mounted on the outer side of the slip ring (3225); and the rack (3123) and the gear ring (3122) are meshingly connected.

8. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 7, characterized in that: The outer ends of the water inlet pipe (333) and the drain pipe (334) are both fixedly mounted with connecting flanges (335), and the side shape of the slider (314) and the internal cross-sectional shape of the slide groove (313) are both set to be convex.

9. The coaxial tube heat exchanger for a water-cooled air conditioner according to claim 8, characterized in that: Mounting frames (4) are fixedly mounted on both sides of the frame (1), and mounting holes (5) are provided at both ends of the outer sides of the mounting frames (4), wherein the mounting holes (5) are configured as countersunk holes.

10. A method for using a coaxial tube heat exchanger for a water-cooled air conditioner for heat exchange, using the coaxial tube heat exchanger for a water-cooled air conditioner according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Pipeline connection. The operator aligns the pipe joint (323) and inserts it into the pipe interface (321), operates the adjustment mechanism (31), and accurately drives the slip ring (3225) to rotate. The slip ring (3225) rotates the compressed torsion spring (3224), driving the outer limit frame (3226) to rotate and move outward synchronously, and then withdraw it from the limit pipe frame (3222). When the limit frame (3226) and the limit pipe frame (3222) are completely separated, the pipe joint (323) can be completely inserted into the pipe interface (321); Step 2: After the heat exchange tube (34) is clamped and the pipe joint (323) is inserted, the operator releases the adjustment mechanism (31), and the torsion spring (3224) pushes the slip ring (3225) to rotate in the opposite direction outward due to its elastic restoring force, and the slip ring (3225) drives the limit frame (3226) to be inserted into the limit pipe frame (3222) again. The two are inserted into each other to set a limit, thereby realizing the auxiliary clamping installation of the heat exchange tube (34); Step 3: System pipe connection: quickly and firmly connect the heat exchange device (3) and the heat exchange pipe (34) of the heat exchange air conditioning unit (2) pump through the connection flange (335) at the outer end of the water inlet pipe (333) and the drain pipe (334); Step 4: heat exchange medium circulation, the air conditioning unit (2) is running, and the heat exchange medium flows from the water inlet pipe (333) into the uppermost U-shaped connecting cavity (332). Since the input end and the output end of the connecting cavity (332) are connected to each heat exchange tube (34) through the mounting block, under the combined action of gravity and system pressure, the heat exchange medium flows in sequence through the upper connecting cavity (332), the lower heat exchange tube (34), and the bottom heat exchange tube (34), and then flows through the bottom connecting cavity (332) to the bottom drain pipe (334) for discharge, and then recirculates under the drive of the air conditioning unit (2) pump; Step 5: Disassembling the heat exchange tube (34). When disassembling and inspecting the heat exchange tube (34) of the radiator, the operator adjusts and twists the adjustment handrail (35) to drive the gear (315) to rotate for the first time. The gear (315) drives the connecting plate (316) to push the slider (314) to slide in a predetermined track. The slider (314) pushes the rack (3123) on the outside of the connecting arm (3121) to move laterally. The rack (3123) pushes the gear ring (3122) fixedly connected to the outside of the slip ring (3225) to rotate. The slip ring (3225) rotates to push the limiting frame (3226) to move outward. The limiting frame (3226) is separated from the limiting pipe frame (3222). The operator pulls the pipe joint (323) out of the pipe interface (321), and the disassembly of the heat exchange tube (34) is completed. Step 6: Reinstall the heat exchange tube (34). After the heat exchange tube (34) is replaced or repaired, it is reinstalled. Since the torsion spring (3224) is in a compressed state of elastic deformation due to the rotation of the slip ring (3225), the operator loosens the adjustment armrest (35). The torsion spring (3224) pushes the slip ring (3225) to reset and rotate by virtue of its elastic restoring force. The slip ring (3225) drives the limiting frame (3226) to be inserted into the limiting pipe frame (3222) again, so as to achieve stable clamping and fixing of the pipe interface (321) and the pipe joint (323), and the installation of the heat exchange tube (34) is completed.

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